CAST-IN-PLACE PROTECTIVE SHEET AND ITS PREPARATION METHOD

Abstract

The present invention discloses a cast-in-place protective sheet, comprising the main ingredient taking up 45%-95% of the total by weight, which is composed of 125-140 parts of isocyanate, 10-220 parts of polyamine compound, 220-660 parts of diamine compound, 210-260 parts of polyether diol and 115-190 parts of polyether polyol, as well as the excipient taking up 5%-55% of the total by weight which is composed of 20-140 parts of environmental diluent, 1-35 parts of organometallic catalyst, 30-400 parts of filler and 4-75 parts of deforming agent. The present invention is an environmentally-friendly seamless waterproof material which has the advantages of strong adaptability to the environment, fast curing and good flexibility.

Claims

1. A composition for preparing a cast-in-place water-proof sheet material, the composition comprising: 45-95 wt % of a main ingredient, wherein a composition for preparing the main ingredient comprises: 125-140 parts by weight of an isocyanate; 10-220 parts by weight of a polyamine compound; 220-660 parts by weight of a diamine compound; 210-260 parts by weight of a polyether diol; and 115-190 parts by weight of a polyether polyol.

2. The composition of claim 1, wherein the isocyanate is xylylenediisocyanate, 4,4-diisocyanate, 2,4-diisocyanate, 2,2-diisocyanate, 1,6-hexamethylene diisocyanate or any combinations thereof; the polyamine compound comprises one or more of primary amine, secondary amine and tertiary amine group-terminated polypropylene oxide compounds with a functionality of 3 and a molecular weight of 100-6000; the diamine compound comprises one or more of primary amine, secondary amine and tertiary amine group-terminated polypropylene oxide compound with a functionality of 2 and a molecular weight of 30-1800; the polyether diol comprises one or more of polyoxypropylene ether diol, ethylene oxide-terminated polyoxypropylenediol and tetrahydrofuran-polypropylene oxide copolyether; and the polyether polyol comprises one or more of polyoxypropylene ether triol, ethylene oxide-terminated polyoxypropylenetriol and pentaerythritol.

3. The composition of claim 1, wherein a molar ratio of a sum of the diamine compound and the polyether diol over a sum of the polyamine compound and the polyether polyol is from 1:1.15 to 1:1.3, and a molar ratio of the terminal amino group over the terminal hydroxyl group is from 1.2:1 to 1.05:1.

4. The composition of claim 1, further comprising: 5-55 wt % of an excipient; and 0-20 wt % of a remainder.

5. The composition of claim 4, wherein the excipient comprises: 20-140 parts by weight of an environmental diluent; 1-35 parts by weight of an organometallic catalyst; 30-400 parts by weight of a filler; and 4-75 parts by weight of a deforming agent; and the remainder comprises: 1-90 parts of a functional adjuvant; and 13-60 parts of an inorganic dye.

6. The composition of claim 5, wherein the environmental diluent is dioctyl terephthalate, dioctyl phthalate, dibutyl phthalate, or any combinations thereof; the organometallic catalyst is dibutyltindilaurate, stannous octoate, lead octoate, zincoctoate, calcium naphthenate or any combinations thereof; the filler is calcium carbonate, light calcium carbonate, talc, kaolin, heavy calcium carbonate, or any combinations thereof; the defoaming agent is tributyl phosphate, methyl silicone oil, dimethyl silicone oil, or any combinations thereof; the functional adjuvant is benzoic acid, bentonite, calcium oxide, zinc oxide, calcium hydroxide, KH-550, cement, silane hydrophobic agentl, or any combinations thereof; and the inorganic dye is one or more of carbon black, aluminum oxide, titanium dioxide, chromium oxide, iron oxide, or any combinations thereof.

7. A method of preparing a cast-in-place water-proof sheet material, comprising: adding 125-140 parts by weight of an isocyanate, 210-260 parts by weight of a polyether diol, and 115-190 parts by weight of a polyether polyol into a reactor at a temperature of 80-85 C. for reaction; adding 4-75 parts by weight of a deforming agent and 13-60 parts of an inorganic dye into the reactor after the temperature thereof is decreased to 50-60 C.; subsequently adding 10-220 parts by weight of a polyamine compound and 210-260 parts by weight of a polyether diol into the reactor for reaction; measuring a percentage of isocyanate content in the reactor; decreasing the temperature of the reactor to 255 C. after the isocyanate content is 95-105% of a designed value; mixing and adding 1-90 parts by weight of a functional adjuvant, 1-35 parts by weight of an organometallic catalyst, and 20-140 parts by weight of an environmental diluent into the reactor to be dispersed in the reactor; adding a dried filler into the reactor; sufficiently mixing all components in the reactor to form a mixture; filtering the mixture; filling nitrogen into the mixture; and sealing the mixture.

8. The method of claim 7, wherein the isocyanate is xylylenediisocyanate, 4,4-diisocyanate, 2,4-diisocyanate, 2,2-diisocyanate, 1,6-hexamethylene diisocyanate or any combinations thereof; the polyamine compound comprises one or more of primary amine, secondary amine and tertiary amine group-terminated polypropylene oxide compounds with a functionality of 3 and a molecular weight of 100-6000; the diamine compound comprises one or more of primary amine, secondary amine and tertiary amine group-terminated polypropylene oxide compound with a functionality of 2 and a molecular weight of 30-1800; the polyether diol comprises one or more of polyoxypropylene ether diol, ethylene oxide-terminated polyoxypropylenediol and tetrahydrofuran-polypropylene oxide copolyether; and the polyether polyol comprises one or more of polyoxypropylene ether triol, ethylene oxide-terminated polyoxypropylenetriol and pentaerythritol.

9. The method of claim 7, wherein a molar ratio of a sum of the diamine compound and the polyether diol over a sum of the polyamine compound and the polyether polyol is from 1:1.15 to 1:1.3, and a molar ratio of the terminal amino group over the terminal hydroxyl group is from 1.2:1 to 1.05:1.

10. The method of claim 7, wherein the environmental diluent is dioctyl terephthalate, dioctyl phthalate, dibutyl phthalate, or any combinations thereof; the organometallic catalyst is dibutyltindilaurate, stannous octoate, lead octoate, zincoctoate, calcium naphthenate or any combinations thereof; the filler is calcium carbonate, light calcium carbonate, talc, kaolin, heavy calcium carbonate, or any combinations thereof; the defoaming agent is tributyl phosphate, methyl silicone oil, dimethyl silicone oil, or any combinations thereof; the functional adjuvant is benzoic acid, bentonite, calcium oxide, zinc oxide, calcium hydroxide, KH-550, cement, silane hydrophobic agentl, or any combinations thereof; and the inorganic dye is one or more of carbon black, aluminum oxide, titanium dioxide, chromium oxide, iron oxide, or any combinations thereof.

Description

DETAILED DESCRIPTION

[0029] The illustrative embodiments and related illustration of the present invention are intended to describe the present invention, and do not constitute an undue limitation of the present invention.

[0030] The raw materials of the constituent components in the embodiments are commercially available. In particular, the sources of each component in the embodiments are shown in Table 1.

TABLE-US-00001 TABLE 1 Raw materials Manufacturers Product model XDI Mitsui Chemicals D-110N Ethylene oxide-terminated Shandong DL-2000D polyoxypropylenediol BluestarDongda Co., Ltd. Pentaerythritol Yunnan Yuntianhua Co., Ltd. Tributyl phosphate Wuxi Donghu Chemical TBP Plant Titanium dioxide LangfangShengquan R-818 Chemical Co., Ltd. A polypropylene oxide YantaiMinsheng ATM-403 compound with a primary Chemical Co., Ltd. amine group terminated with a functionality of 3 DETDA Jiangsu Victory Chemical E-100 Co., Ltd. Dioctyl terephthalate Jiangsu Weide Chemical JSWD-SK50 Technology Co., Ltd. Benzoic acid Tianjin Xin Da Yu Chemical Co., Ltd. Dibutyltindilaurate Shanghai Yutian Chemical T-12 Co., Ltd. Light calcium carbonate Shijiazhuang Hongri 1250 mesh Calcium Industry Co., Ltd. 2,4-diisocyanate CangzhouDahua Group, TDI-80 Hebei THF-PO Shanxi Chemical Research Institute (Co., Ltd.) Ethylene oxide-terminated Shandong MN-3050 polyoxypropylenetriol BluestarDongda Co., Ltd. Dimethyl silicone oil Shenzhen Chuying New 201 Material Co., Ltd Carbon black Capel Chemical (Tianjin) N774 Co., Ltd. Dibutyl phthalate Jiangsu Weide Chemical JSWD-DBP Technology Co., Ltd. Zinc oxide Shijiazhuang Longli Chemical Co., Ltd. Stannous octoate Shanghai Yutian T-9 Chemical Co., Ltd. Talcum powder LinyiZhenfang Chemical 1250 mesh Co., Ltd.

Embodiment 1

[0031] Adding 128 g of XDI, 210 g of ethylene oxide-terminated polyoxypropylenediol and 178 g of pentaerythritol to a reactor at a temperature of 80-85 C., mixing them at a speed of 80-150 rpm for 3 hours of reaction, and rapidly cooling the resultant to 50-60 C.; adding 15 g of tributyl phosphate and 40 g of titanium dioxide, and adding 3-4 batches of 70 g of primary amine-terminated polyoxypropane compound with a functionality of 3 and 40 g of DETDA, uniformly mixing them at a speed of 80-150 rpm for 1 hour of reaction; measuring the percentage content of the isocyanate (NCO %), and rapidly reducing the temperature to 255 C. when the measurement reaches 95-105% of the design value; diluting and mixing 5 g of benzoic acid and 12 g of dibutyltindilaurate with 93 g of dioctyl terephthalate and then placing them all to the reactor, leaving them dispersed for 20 minutes at the same speed, and finally adding 300 g of dried light calcium carbonate for full mixing, filtration, protection with filled nitrogen and sealing into bottle for packaging.

[0032] Spraying the above-mentioned bottled material on the building bases that need to be protected for many times to prepare a seamless cast-in-place sheet with a thickness of 1.7 mm; after test, the non-stick time is 192 seconds, the gelling time is 3500 seconds and the tensile strength is 2.60 Mpa, with a breaking elongation of 680% and a low temperature flexibility of bending without cracks at a temperature of 35 C.

Embodiment 2

[0033] Adding 125 g of 2,4-diisocyanate, 250 g of THF-PO and 135 g of ethylene oxide-terminated polyoxypropylenetriol to a reactor at a temperature of 80-85 C., mixing them at a speed of 80-150 rpm for 3 hours of reaction, and rapidly cooling the resultant to 50-60 C.; adding 25 g of dimethyl silicone oil and 36 g of carbon black, and adding 3-4 batches of 140 g of the primary amine-terminated polyoxypropylene compound with a functionality of 3 and 220 g of DETDA, uniformly mixing them at a speed of 80-150 rpm for 1 hour of reaction; measuring the percentage content of the isocyanate (NCO %), and rapidly reducing the temperature to 255 C. when the measurement reaches 95-105% of the design value; diluting and mixing 21 g of zinc oxide and 25 g of stannous octoate with 64 g of dibutyl phthalate and then placing them all to the reactor, leaving them dispersed for 20 minutes at the same speed, and finally adding 290 g of dried talcum powder for full mixing, filtration, protection with filled nitrogen and sealing into bottle for packaging.

[0034] Spraying the above-mentioned bottled material on the building bases that need to be protected for many times to prepare a seamless cast-in-place sheet with a thickness of 1.7 mm; after test, the non-stick time is 206 seconds, the gelling time is 3700 seconds and the tensile strength is 2.55 Mpa, with a breaking elongation of 665% and a low temperature flexibility of bending without cracks at a temperature of 35 C.

[0035] The foregoings are only used as the preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions and improvements based on the spirit and principle of the present invention shall be covered in the protection scope of the present invention.