Non-silicon defoaming agent

Abstract

A non-silicon defoaming agent, includes an acrylate polymer, an organic solvent carrier, hydrophobic particles and defoaming auxiliaries; and the acrylate polymer is prepared from following raw material components: monomer-1, monomer-2, unsaturated terminated polyether, alkene, diluent and initiator. The present invention further includes a preparing method for the non-silicon defoaming agent and the application of the non-silicon defoaming agent to the defoaming and foam inhibiting in systems rich in anionic surfactants. The defoaming agent takes the acrylate polymer as the main active substance and has excellent defoaming and foam inhibiting performance. By dropwise adding monomers, the defoaming performance of the acrylate polymer is improved, by using unsaturated terminated polyether to modify, the hydrophilia of the acrylate polymer is improved, the instant defoaming capacity is further improved, and by the alkene with the carbon atoms of 6-22 to modify, the foam inhibiting performance of the defoaming agent is improved.

Claims

1. A non-silicon defoaming agent comprising an acrylate polymer, an organic solvent carrier, a plurality of hydrophobic particles and a plurality of defoaming auxiliaries; wherein a use level of the acrylate polymer is 15-70% of a total mass of the non-silicon defoaming agent, a use level of the organic solvent carrier is 10-70% of the total mass of the non-silicon defoaming agent, a use level of the plurality of hydrophobic particles is 0.1-15% of the total mass of the non-silicon defoaming agent, and a use level of the plurality of defoaming auxiliaries is 1-25% of the total mass of the non-silicon defoaming agent; the acrylate polymer is prepared from following raw material components: a first monomer, a second monomer, an unsaturated terminated polyether, an alkene, a diluent and an initiator; a total use level of the first monomer and the second monomer is 20-70% of a total mass of the raw material components, a use level of the unsaturated terminated polyether is 1-10% of the total mass of the raw material components, a use level of the alkene is 1-8% of the total mass of the raw material components, a use level of the diluent is 20-75% of the total mass of the raw material components, and a use level of the initiator is 0.2-1% of the total mass of the raw material components.

2. The non-silicon defoaming agent according to claim 1, wherein the use level of the acrylate polymer is 20-60% of the total mass of the non-silicon defoaming agent, the use level of the organic solvent carrier is 10-70% of the total mass of the non-silicon defoaming agent, the use level of the plurality of hydrophobic particles is 0.5-10% of the total mass of the non-silicon defoaming agent, and the use level of the plurality of defoaming auxiliaries is 2-20% of the total mass of the non-silicon defoaming agent.

3. The non-silicon defoaming agent according to claim 1, wherein the total use level of the first monomer and the second monomer is 20-60% of the total mass of the raw material components, the use level of the unsaturated terminated polyether is 1-8% of the total mass of the raw material components, the use level of the alkene is 1-8% of the total mass of the raw material components, the use level of the diluent is 30-70% of the total mass of the raw material components, and the use level of the initiator is 0.4-0.8% of the total mass of the raw material components.

4. The non-silicon defoaming agent according to claim 1, wherein a preparing method of the acrylate polymer comprises: mixing the first monomer, the second monomer and the unsaturated terminated polyether, with the initiator; wherein a use level of the first monomer, the second monomer and the unsaturated terminated polyether is 70-90% of the total use level of the first monomer, wherein a first use level of the initiator is 50-70% of a total use level of the initiator to cause the initiator to be fully dissolved and form a first mixture; mixing the alkene with the initiator, wherein a second use level of the initiator is 5-15% of the total use level of the initiator to fully dissolve the initiator and form a second mixture; mixing the rest first monomer with the initiator, wherein a third use level of the initiator is 2-15% of the total use level of the initiator to fully dissolve the initiator and form a third mixture; at 60-100 C., fully dissolving the initiator in the diluent, wherein a fourth use level of the initiator is 8-15% of the total use level of the initiator, and releasing a plurality of free radicals to form a fourth mixture; at 60-100 C., in order to prevent a generation of a plurality of excessive free radicals causing a severe polymerization and further causing a danger, dropwise adding the first mixture into the fourth mixture, controlling a first dropwise adding time to be 1-5 h, and forming a fifth mixture; during dropwise adding, enabling a first temperature to be 60-100 C. by circulated water or an ice bath; after completely dropwise adding the first mixture, at 60-100 C., similarly, in order to prevent the generation of the plurality of excessive free radicals causing the severe polymerization and further causing the danger, dropwise adding the second mixture into the fifth mixture, controlling a second dropwise adding time to be 1-2 h, and forming a sixth mixture; during dropwise adding, enabling a second temperature to be 60-100 C. by the circulated water or the ice bath; after completely dropwise adding the second mixture, at 60-100 C., dropwise adding the third mixture into the sixth mixture, controlling a third dropwise adding time to be 1-2 h, and forming a seventh mixture; during dropwise adding, enabling a third temperature to be 60-100 C. by the circulated water or the ice bath; after completely dropwise adding the third mixture, at 60-100 C., adding the rest initiator into the seventh mixture to obtain an eighth mixture, then regulating a fourth temperature to 80-120 C. and performing a thermal insulation at the fourth temperature for 1-3 h; and distilling the eighth mixture for 0.5-3 h at a vacuum degree of 0.09-0.1 MPa and a temperature of 90-110 C. to remove a plurality of micromolecular impurities, thus obtaining the acrylate polymer.

5. The non-silicon defoaming agent according to claim 1, wherein a ratio of the first monomer to the second monomer is between 1:1-4:1; the first monomer is an alkyl acrylate or an octadecyl methacrylate; the second monomer is a hydroxyalkyl acrylate or a hydroxyalkyl methylacrylate as shown in the following general formula: ##STR00002## wherein, R is H or a methyl; R.sup.0 is a straight chain or a branched chain alkyl of 1-20 carbon atoms, and a position of the straight chain or the branched chain alkyl at least contains one hydroxyl.

6. The non-silicon defoaming agent according to claim 5, wherein the first monomer is an iso-octyl acrylate or an iso-octyl methacrylate; the second monomer is a hydroxyethyl acrylate or a hydroxyethyl methylacrylate.

7. A preparing method for the non-silicon defoaming agent according to claim 1, comprising: uniformly mixing the acrylate polymer, the organic solvent carrier, the plurality of hydrophobic particles and the plurality of defoaming auxiliaries to obtain the non-silicon defoaming agent.

Description

DETAILED DESCRIPTION OF THE EMBODIMENTS

(1) In following embodiments, the instances of the acrylate polymer F are as follows:

(2) TABLE-US-00001 Unsaturated Acrylate terminated polymer F Monomer-1 Monomer-2 polyether Alkene Diluent Initiator F1 Iso-octyl Hydroxyethyl B1 C1 PPG1000 Benzoyl acrylate acrylate peroxide F2 Iso-octyl Hydroxyethyl B2 C2 PPG600 Benzoyl acrylate methylacrylate peroxide F3 Iso-octyl Hydroxyethyl B3 C3 PPG2000 Benzoyl methacrylate acrylate peroxide F4 Iso-octyl Hydroxyethyl B4 C4 PPG400 Benzoyl methacrylate methylacrylate peroxide

(3) In following embodiments, the instances of the unsaturated terminated polyether B are as follows:

(4) TABLE-US-00002 Unsaturated terminated polyether B R.sup.1 m n B1 CH.sub.3 16 24 B2 CH.sub.2(CH.sub.2).sub.2CH.sub.3 2 18 B3 C.sub.6H.sub.5 3 3 B4 CH.sub.3(CH.sub.2).sub.10CO 12 8

(5) In following embodiments, the instances of the unsaturated terminated polyether B are as follows:

(6) TABLE-US-00003 Alkene C R.sup.2 C1 (CH.sub.2).sub.13CH.sub.3 C2 (CH.sub.2).sub.7CH.sub.3 C3 (CH.sub.2).sub.19CH.sub.3 C4 (CH2).sub.3CH.sub.3

Embodiment 1

(7) (1) mixing 80 g of iso-octyl acrylate, 100 g of hydroxyethyl acrylate, 80 g of unsaturated terminated polyether B1 and 4.8 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a1;

(8) (2) mixing 50 g of alkene C1 and 0.8 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture b1;

(9) (3) mixing rest 20 g of iso-octyl acrylate and 0.8 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture c1;

(10) (4) adding 0.8 g of benzoyl peroxide into 662 g of diluent PPG1000 while stirring, after complete adding of the benzoyl peroxide, heating to 80 C., performing thermal insulation for 10 min to fully dissolve the benzoyl peroxide and form a mixture d1;

(11) (5) under cooling of circulated cooling water, keeping the temperature of the mixture d1 at 80 C., dropwise adding the mixture a1 into the mixture d1 while stirring, and completely dropwise adding within 3 h to form a mixture e1;

(12) (6) after complete dropwise adding of the mixture a1, under cooling of the circulated cooling water, continuing to keep the temperature at 80 C., continuing to dropwise add the mixture b1 into the mixture e1, and completely dropwise adding within 1.5 h to form a mixture f1;

(13) (7), after complete dropwise adding of the mixture b1, under cooling of the circulated cooling water, continuing to keep the temperature at 80 C., continuing to dropwise add mixture c1 into the mixture f1, and completely dropwise adding within 1.5 h to form a mixture g1;

(14) (8) after complete dropwise adding of the mixture c1, under cooling of the circulated cooling water, continuing to keep the temperature at 80 C., adding rest 0.8 g of benzoyl peroxide into the mixture g1, after adding the benzoyl peroxide, controlling the temperature at 120 C., and performing thermal insulation for 1 h; and

(15) (9) finally, distilling for 2 h at the vacuum degree of 0.09 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F1.

Embodiment 2

(16) (1) mixing 320 g of iso-octyl acrylate, 200 g of hydroxyethyl methylacrylate, 10 g of unsaturated terminated polyether B2 and 2.4 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a2;

(17) (2) mixing 40 g of alkene C2 and 0.4 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture b2;

(18) (3) mixing rest 80 g of iso-octyl acrylate and 0.4 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture c2;

(19) (4) adding 0.4 g of benzoyl peroxide into 346 g of diluent PPG600 while stirring, after complete adding of the benzoyl peroxide, heating to 100 C., performing thermal insulation for 10 min to fully dissolve the benzoyl peroxide and form a mixture d2;

(20) (5) under cooling of circulated cooling water, keeping the temperature of the mixture d2 at 100 C., dropwise adding the mixture a2 into the mixture d2 while stirring, and completely dropwise adding within 5 h to form a mixture e2;

(21) (6) after complete dropwise adding of the mixture a2, under cooling of the circulated cooling water, continuing to keep the temperature at 100 C., continuing to dropwise add the mixture b2 into the mixture e2, and completely dropwise adding within 2 h to form a mixture f2;

(22) (7), after complete dropwise adding of the mixture b2, under cooling of the circulated cooling water, continuing to keep the temperature at 100 C., continuing to dropwise add mixture c2 into the mixture f2, and completely dropwise adding within 1 h to form a mixture g2;

(23) (8) after complete dropwise adding of the mixture c2, under cooling of the circulated cooling water, continuing to keep the temperature at 100 C., adding rest 0.4 g of benzoyl peroxide into the mixture g2, after adding the benzoyl peroxide, controlling the temperature at 100 C., and performing thermal insulation for 3 h; and

(24) (9) finally, distilling for 1 h at the vacuum degree of 0.09 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F2.

Embodiment 3

(25) (1) mixing 240 g of iso-octyl methylacrylate, 100 g of hydroxyethyl acrylate, 50 g of unsaturated terminated polyether B3 and 3.6 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a3;

(26) (2) mixing 80 g of alkene C3 and 0.6 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture b3;

(27) (3) mixing rest 60 g of iso-octyl methylacrylate and 0.6 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture c3;

(28) (4) adding 0.6 g of benzoyl peroxide into 464 g of diluent PPG2000 while stirring, after complete adding of the benzoyl peroxide, heating to 60 C., performing thermal insulation for 20 min to fully dissolve the benzoyl peroxide and form a mixture d3;

(29) (5) under cooling of circulated cooling water, keeping the temperature of the mixture d3 at 60 C., dropwise adding the mixture a3 into the mixture d3 while stirring, and completely dropwise adding within 1 h to form a mixture e3;

(30) (6) after complete dropwise adding of the mixture a3, under cooling of the circulated cooling water, continuing to keep the temperature at 60 C., continuing to dropwise add the mixture b3 into the mixture e3, and completely dropwise adding within 1 h to form a mixture f3;

(31) (7), after complete dropwise adding of the mixture b3, under cooling of the circulated cooling water, continuing to keep the temperature at 60 C., continuing to dropwise add mixture c3 into the mixture f3, and completely dropwise adding within 2 h to form a mixture g3;

(32) (8) after complete dropwise adding of the mixture c3, under cooling of the circulated cooling water, continuing to keep the temperature at 60 C., adding rest 0.6 g of benzoyl peroxide into the mixture g3, after adding the benzoyl peroxide, controlling the temperature at 80 C., and performing thermal insulation for 2 h; and

(33) (9) finally, distilling for 3 h at the vacuum degree of 0.1 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F3.

Embodiment 4

(34) (1) mixing 320 g of iso-octyl methylacrylate, 100 g of hydroxyethyl methylacrylate, 40 g of unsaturated terminated polyether B4 and 3 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a4;

(35) (2) mixing 10 g of alkene C4 and 0.5 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture b4;

(36) (4) mixing rest 80 g of iso-octyl methylacrylate and 0.5 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture c4;

(37) (4) adding 0.5 g of benzoyl peroxide into 445 g of diluent PPG400 while stirring, after complete adding of the benzoyl peroxide, heating to 90 C., performing thermal insulation for 15 min to fully dissolve the benzoyl peroxide and form a mixture d4;

(38) (5) under cooling of circulated cooling water, keeping the temperature of the mixture d4 at 90 C., dropwise adding the mixture a4 into the mixture d4 while stirring, and completely dropwise adding within 2 h to form a mixture e4;

(39) (6) after complete dropwise adding of the mixture a4, under cooling of the circulated cooling water, continuing to keep the temperature at 90 C., continuing to dropwise add the mixture b4 into the mixture e4, and completely dropwise adding within 2 h to form a mixture f4;

(40) (7), after complete dropwise adding of the mixture b4, under cooling of the circulated cooling water, continuing to keep the temperature at 90 C., continuing to dropwise add mixture c4 into the mixture f4, and completely dropwise adding within 2 h to form a mixture g4;

(41) (8) after complete dropwise adding of the mixture c4, under cooling of the circulated cooling water, continuing to keep the temperature at 90 C., adding rest 0.5 g of benzoyl peroxide into the mixture g4, after adding the benzoyl peroxide, controlling the temperature at 90 C., and performing thermal insulation for 2 h; and

(42) (9) finally, distilling for 0.5 h at the vacuum degree of 0.1 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F4.

Embodiment 5

(43) TABLE-US-00004 AH1 Acrylate polymer F1 60 PPG1000 30 Hydrophobic precipitation-method white carbon black 5 SipernatD10 Alkyl modified polysiloxane 5 CH.sub.3(CH.sub.2).sub.15Si(CH.sub.3).sub.2[OSi(CH.sub.3).sub.2].sub.20OSi(CH.sub.3).sub.2(CH.sub.2).sub.15CH.sub.3

(44) The acrylate polymer F1 prepared in the embodiment 1, PPG1000, hydrophobic precipitation-method white carbon black SipernatD10 and alkyl modified polysiloxane are mixed uniformly according to above proportion to prepare a non-silicon defoaming agent AH1.

Embodiment 6

(45) TABLE-US-00005 AH2 Acrylate polymer F2 20 PPG600 60 Hydrophobic precipitation-method white carbon black 10 SipernatD13 Alkyl modified polysiloxane 10 CH.sub.3(CH.sub.2).sub.9Si(CH.sub.3).sub.2[OSi(CH.sub.3).sub.2].sub.50OSi(CH.sub.3).sub.2(CH.sub.2).sub.9CH.sub.3

(46) The acrylate polymer F2 prepared in the embodiment 2, PPG600, hydrophobic precipitation-method white carbon black SipernatD13 and alkyl modified polysiloxane are mixed uniformly according to above proportion to prepare a non-silicon defoaming agent AH2.

Embodiment 7

(47) TABLE-US-00006 AH3 Acrylate polymer F3 60 PPG2000 10 Hydrophobic precipitation-method white carbon black 10 SipernatD17 Alkyl modified polysiloxane 20 CH.sub.3(CH.sub.2).sub.11Si(CH.sub.3).sub.2[OSi(CH.sub.3).sub.2].sub.45OSi(CH.sub.3).sub.2(CH.sub.2).sub.11CH.sub.3

(48) The acrylate polymer F3 prepared in the embodiment 3, PPG2000, hydrophobic precipitation-method white carbon black SipernatD17 and alkyl modified polysiloxane are mixed uniformly according to above proportion to prepare a non-silicon defoaming agent AH3.

Embodiment 8

(49) TABLE-US-00007 AH4 Acrylate polymer F4 47.5 PPG400 50 Hydrophobic precipitation-method white carbon black Zeofoam163-2 0.5 Polyether-modified polysiloxane 2 CH.sub.3(PO).sub.12(EO).sub.18(CH.sub.2).sub.3Si(CH.sub.3).sub.2[OSi(CH.sub.3).sub.2].sub.80OSi(CH.sub.3).sub.2(CH.sub.2).sub.3(EO).sub.18(PO).sub.12CH.sub.3

(50) The acrylate polymer F4 prepared in the embodiment 4, PPG400, hydrophobic precipitation-method white carbon black Zeofoam163-2 and polyether-modified polysiloxane are mixed uniformly according to above proportion to prepare a non-silicon defoaming agent AH4.

Contrast Example 1

(51) (1) mixing 144 g of iso-octyl acrylate, 100 g of hydroxyethyl acrylate and 4.8 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a-I;

(52) (2) mixing 50 g of alkene C1 and 0.8 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture b-I;

(53) (3) mixing rest 36 g of iso-octyl acrylate and 0.8 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture c-I;

(54) (4) adding 0.8 g of benzoyl peroxide into 662 g of diluent PPG-1000 while stirring, after complete adding of the benzoyl peroxide, heating to 80 C., performing thermal insulation for 10 min to fully dissolve the benzoyl peroxide and form a mixture d-I;

(55) (5) under cooling of circulated cooling water, keeping the temperature of the mixture d-I at 80 C., dropwise adding the mixture a-I into the mixture d-I while stirring, and completely dropwise adding within 3 h to form a mixture e-I;

(56) (6) after complete dropwise adding of the mixture a-I, under cooling of the circulated cooling water, continuing to keep the temperature at 80 C., continuing to dropwise add the mixture b-I into the mixture e-I, and completely dropwise adding within 1 h to form a mixture f-I;

(57) (7), after complete dropwise adding of the mixture b-I, under cooling of the circulated cooling water, continuing to keep the temperature at 80 C., continuing to dropwise add mixture c-I into the mixture f-I, and completely dropwise adding within 1 h to form a mixture g-I;

(58) (8) after complete dropwise adding of the mixture c-I, under cooling of the circulated cooling water, continuing to keep the temperature at 80 C., adding rest 0.8 g of benzoyl peroxide into the mixture g-I, after adding the benzoyl peroxide, controlling the temperature at 100 C., and performing thermal insulation for 2 h; and

(59) (9) finally, distilling for 2 h at the vacuum degree of 0.09 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F-I.

Contrast Example 2

(60) (1) mixing 320 g of iso-octyl acrylate, 200 g of hydroxyethyl methylacrylate, 10 g of unsaturated terminated polyether B2 and 2.4 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a-II;

(61) (2) mixing rest 80 g of iso-octyl acrylate and 0.4 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture c-II;

(62) (3) adding 0.4 g of benzoyl peroxide into 386.4 g of diluent PPG600 while stirring, after complete adding of the benzoyl peroxide, heating to 100 C., performing thermal insulation for 10 min to fully dissolve the benzoyl peroxide and form a mixture d-II;

(63) (4) under cooling of circulated cooling water, keeping the temperature of the mixture d-II at 100 C., dropwise adding the mixture a-II into the mixture d-II while stirring, and completely dropwise adding within 5 h to form a mixture e-II;

(64) (5) after complete dropwise adding of the mixture a-II, under cooling of the circulated cooling water, continuing to keep the temperature at 100 C., continuing to dropwise add the mixture c-II into the mixture e-II, and completely dropwise adding within 1 h to form a mixture g-II;

(65) (6), after complete dropwise adding of the mixture c-II, under cooling of the circulated cooling water, continuing to keep the temperature at 100 C., adding rest 0.4 g of benzoyl peroxide into the mixture g-II, after adding the benzoyl peroxide, controlling the temperature at 100 C., and performing thermal insulation for 2 h; and

(66) (7) finally, distilling for 1 h at the vacuum degree of 0.09 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F-II.

Contrast Example 3

(67) (1) mixing 240 g of iso-octyl methylacrylate, 100 g of hydroxyethyl acrylate and 3.6 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a-III;

(68) (2) mixing rest 60 g of iso-octyl methylacrylate and 0.6 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture c-III;

(69) (3) adding 0.6 g of benzoyl peroxide into 594.6 g of diluent PPG2000 while stirring, after complete adding of the benzoyl peroxide, heating to 60 C., performing thermal insulation for 10 min to fully dissolve the benzoyl peroxide and form a mixture d-III;

(70) (4) under cooling of circulated cooling water, keeping the temperature of the mixture d-III at 60 C., dropwise adding the mixture a-III into the mixture d-III while stirring, and completely dropwise adding within 1 h to form a mixture e-III;

(71) (5) after complete dropwise adding of the mixture a-III, under cooling of the circulated cooling water, continuing to keep the temperature at 60 C., continuing to dropwise add the mixture c-III into the mixture f-III, and completely dropwise adding within 2 h to form a mixture g-III;

(72) (6) after complete dropwise adding of the mixture c-III, under cooling of the circulated cooling water, continuing to keep the temperature at 60 C., adding rest 0.6 g of benzoyl peroxide into the mixture g-III, after adding the benzoyl peroxide, controlling the temperature at 120 C., and performing thermal insulation for 2 h; and

(73) (7) finally, distilling for 3 h at the vacuum degree of 0.1 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F-III.

Contrast Example 4

(74) (1) mixing 400 g of iso-octyl methylacrylate, 100 g of hydroxyethyl methylacrylate, 40 g of unsaturated terminated polyether B4 and 3 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a-IV;

(75) (2) mixing 10 g of alkene C4 and 0.5 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture b-IV;

(76) (3) adding 0.5 g of benzoyl peroxide into 445.5 g of diluent PPG400 while stirring, after complete adding of the benzoyl peroxide, heating to 90 C., performing thermal insulation for 10 min to fully dissolve the benzoyl peroxide and form a mixture d-IV;

(77) (4) under cooling of circulated cooling water, keeping the temperature of the mixture d-IV at 90 C., dropwise adding the mixture a-IV into the mixture d-IV while stirring, and completely dropwise adding within 2 h to form a mixture e-IV;

(78) (5) after complete dropwise adding of the mixture a-IV, under cooling of the circulated cooling water, continuing to keep the temperature at 90 C., continuing to dropwise add the mixture b-IV into the mixture e-IV, and completely dropwise adding within 2 h to form a mixture f-IV;

(79) (6), after complete dropwise adding of the mixture b-IV, under cooling of the circulated cooling water, continuing to keep the temperature at 90 C., adding rest 0.5 g of benzoyl peroxide into the mixture f-IV, controlling the temperature at 90 C., and performing thermal insulation for 2 h; and

(80) (7) finally, distilling for 0.5 h at the vacuum degree of 0.1 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F-IV.

Contrast Example 5

(81) (1) mixing 80 g of iso-octyl acrylate, 100 g of hydroxyethyl methylacrylate, 80 g of unsaturated terminated polyether B2, 50 g of alkene C2 and 5.6 g of benzoyl peroxide, and fully dissolving the benzoyl peroxide by stirring to form a mixture a-V;

(82) (2) mixing rest 20 g of iso-octyl acrylate and 0.8 g of benzoyl peroxide through stirring to fully dissolve the benzoyl peroxide and form a mixture c-V;

(83) (3) adding 0.8 g of benzoyl peroxide into 662 g of diluent PPG600 while stirring, after complete adding of the benzoyl peroxide, heating to 100 C., performing thermal insulation for 10 min to fully dissolve the benzoyl peroxide and form a mixture d-V;

(84) (4) under cooling of circulated cooling water, keeping the temperature of the mixture d-V at 100 C., dropwise adding the mixture a-V into the mixture d-V while stirring, and completely dropwise adding within 5 h to form a mixture e-V;

(85) (5) after complete dropwise adding of the mixture a-V, under cooling of the circulated cooling water, continuing to keep the temperature at 100 C., continuing to dropwise add the mixture c-V into the mixture e-V, and completely dropwise adding within 1 h to form a mixture g-V;

(86) (6), after complete dropwise adding of the mixture c-V, under cooling of the circulated cooling water, continuing to keep the temperature at 100 C., adding rest 0.8 g of benzoyl peroxide into the mixture g-V, after adding the benzoyl peroxide, controlling the temperature at 100 C., and performing thermal insulation for 2 h; and

(87) (7) finally, distilling for 1 h at the vacuum degree of 0.09 MPa and the temperature of 100 C. to remove micromolecular impurities, thus obtaining the acrylate polymer F-V.

Contrast Example 6

(88) TABLE-US-00008 AH-I Acrylate polymer F-I 60 PPG1000 30 Hydrophobic precipitation-method white carbon black 5 Zeofoam163-2 Alkyl modified polysiloxane (same as embodiment 5) 5

(89) The acrylate polymer F-I prepared in the contrast example 1, PPG1000, hydrophobic precipitation-method white carbon black Zeofoam163-2 and alkyl modified polysiloxane are mixed uniformly according to above proportion to prepare a defoaming agent AH-I.

Contrast Example 7

(90) TABLE-US-00009 AH-II Acrylate polymer F-II 20 PPG600 60 Hydrophobic precipitation-method white carbon black 10 SipernatD10 Alkyl modified polysiloxane (same as embodiment 6) 10

(91) The acrylate polymer F-II prepared in the contrast example 2, PPG600, hydrophobic precipitation-method white carbon black SipernatD10 and alkyl modified polysiloxane are mixed uniformly according to above proportion and stirred for 0.5-2 h under normal temperature to prepare a defoaming agent AH-II.

Contrast Example 8

(92) TABLE-US-00010 AH-III Acrylate polymer F-III 60 PPG2000 10 Hydrophobic precipitation-method white carbon black 10 SipernatD10 Alkyl modified polysiloxane (same as embodiment 7) 20

(93) The acrylate polymer F-III prepared in the contrast example 3, PPG2000, hydrophobic precipitation-method white carbon black SipernatD13 and alkyl modified polysiloxane are mixed uniformly according to above proportion to prepare a defoaming agent AH-III.

Contrast Example 9

(94) TABLE-US-00011 AH-IV Acrylate polymer F-IV 47.5 PPG400 50 Hydrophobic precipitation-method white carbon black 0.5 SipernatD10 Alkyl modified polysiloxane (same as embodiment 7) 2

(95) The acrylate polymer F-IV prepared in the contrast example 4, PPG400, hydrophobic precipitation-method white carbon black SipernatD17 and alkyl modified polysiloxane are mixed uniformly according to above proportion to prepare a defoaming agent AH-IV.

Contrast Example 10

(96) TABLE-US-00012 AH-V Acrylate polymer F-V 20 PPG600 60 Hydrophobic precipitation-method white carbon black 10 SipernatD10 Alkyl modified polysiloxane (same as embodiment 5) 10

(97) The acrylate polymer F-V prepared in the contrast example 5, PPG600, hydrophobic precipitation-method white carbon black SipernatD17 and alkyl modified polysiloxane are mixed uniformly according to above proportion to prepare a defoaming agent AH-V.

Contrast Example 11

(98) TABLE-US-00013 AH-VI Mineral oil 85 White carbon black SipernatD10 8 EBS 3 Oleic acid polyoxyethylene(10EO)ether 4

(99) The mineral oil, white carbon black SipernatD10, EBS and Oleic acid polyoxyethylene(10EO)ether are mixed uniformly according to above proportion to prepare a defoaming agent AH-VI.

Contrast Example 12

(100) Compared with the embodiment C23 in Patent CN101189282B, in the embodiment C23, mainly the silicone grease and silicone polyether are compounded to prepare a defoaming agent AH-VII. Specifically:

(101) TABLE-US-00014 AH-VII Siloxane defoaming agent (selected from the siloxane defoaming 20 agent A3 in Patent CN101189282) Polysiloxane copolymer (selected from the polymer 1 in Patent 10 CN101189282) Dehydrated sorbitol fatty acid ester 10 Water 60

Contrast Example 13

(102) TABLE-US-00015 AH-VIII Acrylate polymer (selected from Patent U.S. Pat. No. 5,152,925A) 60 PPG1000 30 Hydrophobic precipitation-method white carbon black 5 SipernatD13 Alkyl modified polysiloxane (same as the embodiment 5) 5

Contrast Example 14

(103) The copolymer prepared in the embodiment 1 in Patent CN102428142B replaces the acrylate polymer F1 in the embodiment A to prepare a defoaming agent AH-IX.

(104) TABLE-US-00016 AH-IX Acrylate polymer (selected from Patent CN102428142B) 60 PPG1000 30 Hydrophobic precipitation-method white carbon black 5 SipernatD10 Alkyl modified polysiloxane (same as the embodiment 5) 5

Contrast Example 15

(105) A defoaming agent AH-X is prepared according to a formula in a table 4 in Patent CN102428142B.

(106) TABLE-US-00017 AH-X PPG1000 58.5 Hydrophobic silica SipernatD10 3 Acrylate polymer (selected from the embodiment 1 in Patent 23.5 CN102428142B) Polyether-modified polysiloxane silicone surfactant 10 Alkyl-modified siloxane silicone wax 5

(107) Defoaming and Foam Inhibiting Performance Test

(108) Test Method

(109) 600 mL of sodium dodecyl benzene sulfonate water solution with the mass percent of 1% is added into a circulation farming instrument with a glass tube having the scale of 0-500 mL and the inner diameter of 5 cm, the liquid level reaches to the lowest scale 0 ml, then the temperature is set as 80 C., the flow is set as 6 L/min, the voltage is set as 220V, then a temperature control switch is switched on to heat the sodium dodecyl benzene sulfonate water solution to set temperature, then a circulating pump is opened to burst and foam, 0.2 mL of defoaming agent is added after the foam rises to the 350 mL, and the change of the foam height along with time is recorded. If the time that the foam reaches the lowest scale is shorter and the reached scale is lower, the instant defoaming performance of the defoaming agent is better; and if the time that the foam reaches the 350 mL position is longer, the foam inhibiting performance of the defoaming agent is better.

(110) TABLE-US-00018 TABLE 1 Result of the defoaming and foam inhibiting performance test Foam height/mL AH- AH- AH- AH- AH- AH- AH- Time/s AH1 AH2 AH3 AH4 AH-I II III IV AH-V VI VII VIII IX AH-X 0 350 350 350 350 350 350 350 350 350 350 350 350 350 350 5 200 220 210 200 310 210 320 250 280 270 250 240 250 240 10 180 180 180 190 280 180 280 230 260 250 220 200 200 200 15 170 170 180 160 260 160 250 200 200 230 190 190 180 170 30 160 160 170 160 210 150 200 180 180 200 180 180 180 170 60 150 160 170 160 200 150 180 180 180 210 180 180 170 160 90 150 150 170 150 180 140 170 160 160 250 160 170 160 160 120 140 150 160 140 160 130 170 160 160 280 150 170 160 150 150 140 150 150 140 150 150 190 160 160 310 150 160 150 150 180 130 150 15 150 130 150 190 150 170 350 150 150 150 140 210 130 140 150 160 150 170 210 160 170 150 150 140 140 240 130 140 150 160 160 190 250 170 160 150 150 140 140 270 140 150 160 160 180 210 280 180 160 160 150 140 140 300 140 160 160 180 180 250 300 180 160 170 160 150 150 330 150 160 170 190 200 270 320 180 190 170 170 170 160 360 170 170 180 190 210 300 350 180 200 180 180 180 180 390 190 180 190 200 230 320 200 210 200 190 190 200 420 210 210 210 230 250 350 210 230 230 210 220 220 450 230 240 220 250 280 220 260 260 230 230 230 480 250 260 250 280 310 250 280 280 250 250 250 510 290 290 270 310 330 280 320 310 290 280 280 540 300 310 300 320 350 300 350 350 310 310 310 570 320 330 320 330 350 350 350 350 600 330 350 350 350

(111) It can be seen from above data that compared with the polymer defoaming agent AH-I not prepared by modifying through the unsaturated terminated polyether, the defoaming agents AH1-AH4 in the present invention improve the instant defoaming capacity of the defoaming agent; compared with the polymer defoaming agent AH-II not prepared by modifying through the alkene, the defoaming agents AH1-AH4 further improve the foam inhibiting capacity; compared with the polymer defoaming agent AH-III not prepared by modifying through the unsaturated terminated polyether or the alkene, the defoaming agents AH1-AH4 in the present invention greatly improve the instant defoaming capacity and the foam inhibiting capacity; compared with the polymer defoaming agent AH-IV not prepared by adding the acrylate monomer step by step to form a polymer with one hydrophobic end, the defoaming agents AH1-AH4 further improve the instant defoaming capacity; compared with the polymer AH-V prepared by mixing and dropwise adding instead of dropwise adding the unsaturated terminated polyether and the alkene step by step, the defoaming agents AH1-AH4 only improve the instant defoaming capacity and improve the foam inhibiting capacity; compared with the existing mineral oil defoaming agent AH-VI, the existing organic silicon defoaming agent AH-VII taking the silicone grease as the active substance, the defoaming agents AH1-AH4 are obviously improved in the instant defoaming capacity and foam inhibiting capacity; and compared with the existing acrylate polymer defoaming agent, the defoaming agents AH1-AH4 are obviously improved in the instant defoaming capacity and foam inhibiting capacity by modifying through the unsaturated terminated polyether and the alkene and process changing.

(112) The present invention belongs to the technical field of fine chemical engineering, and discloses a non-silicon defoaming agent, comprising an acrylate polymer, an organic solvent carrier, hydrophobic particles and defoaming auxiliaries; and the acrylate polymer is prepared from following raw material components: monomer-1, monomer-2, unsaturated terminated polyether, alkene, diluent and initiator. The present invention further discloses a preparing method for the non-silicon defoaming agent. The present invention further discloses the application of the non-silicon defoaming agent to the defoaming and foam inhibiting in systems rich in anionic surfactants. The defoaming agent in the present invention takes the acrylate polymer as the main active substance and has excellent defoaming and foam inhibiting performance. By dropwise adding monomers, the defoaming performance of the acrylate polymer is improved, by using unsaturated terminated polyether to modify, the hydrophilia of the acrylate polymer is improved, the instant defoaming capacity is further improved, and by the alkene with the carbon atoms of 6-22 to modify, the foam inhibiting performance of the defoaming agent is improved.