GLASS FIBER REINFORCED POLYCARBONATE COMPOSITE MATERIAL, PREPARATION METHOD AND APPLICATION THEREOF

Abstract

A glass fiber reinforced polycarbonate composite material, a preparation method and an application thereof; the material includes the following components: component A: 40 parts to 90 parts of a polycarbonate; component B: 1.5 parts to 50 parts of a polysiloxane block copolymer; component C: 5 parts to 60 parts of a glass fiber; component D: 0.1 parts to 30 parts of a phosphorus-containing compound; and component E: 0.01 parts to 30 parts of a polyolefin compound.

Claims

1. A glass fiber reinforced polycarbonate composite material, comprising the following components in parts by weight: component A: 40 parts to 90 parts of a polycarbonate; component B: 1.5 parts to 50 parts of a polysiloxane block copolymer; component C: 5 parts to 60 parts of a glass fiber; component D: 0.1 parts to 30 parts of a phosphorus-containing compound; and component E: 0.01 parts to 30 parts of a polyolefin compound.

2. The glass fiber reinforced polycarbonate composite material according to claim 1, comprising the following components in parts by weight: component A: 40 parts to 90 parts of the polycarbonate; component B: 3.5 parts to 45 parts of the polysiloxane block copolymer; component C: 5 parts to 60 parts of the glass fiber; component D: 8 parts to 12 parts of the phosphorus-containing compound; and component E: 6 parts to 10 parts of the polyolefin compound.

3. The glass fiber reinforced polycarbonate composite material according to claim 1, wherein in the glass fiber reinforced polycarbonate composite material, a percentage of a siloxane content accounting for a total weight percentage of the composite material is 0.6 wt % to 17 wt %.

4. The glass fiber reinforced polycarbonate composite material according to claim 1, wherein in the glass fiber reinforced polycarbonate composite material, a weight ratio of phosphorus to silicon is 1:0.1 to 1:3.2.

5. The glass fiber reinforced polycarbonate composite material according to claim 1, wherein the polycarbonate is selected from one or more of an aromatic polycarbonate, an aliphatic polycarbonate, an aromatic-aliphatic polycarbonate, and a branched polycarbonate; the aromatic polycarbonate is an aromatic polycarbonate having a viscosity-average molecular weight of 13,000 to 40,000.

6. The glass fiber reinforced polycarbonate composite material according to claim 1, wherein the polysiloxane block copolymer comprises a polydimethylsiloxane block and a polycarbonate block of bisphenol A, having a siloxane content of 0.6 wt % to 36 wt % based on a weight of the component B.

7. The glass fiber reinforced polycarbonate composite material according to claim 1, wherein the phosphorus-containing compound is selected from an oxygen-bearing phosphoric acid, phosphates and derivatives thereof; the oxygen-bearing phosphoric acid is selected from phosphoric acid and/or hypophosphorous acid; and the phosphates and derivatives thereof are selected from sodium phosphate and/or zinc hypophosphite.

8. The glass fiber reinforced polycarbonate composite material according to claim 1, wherein the polyolefin compound is selected from one or more of a saturated linear polyolefin, a polyolefin containing an unsaturated bond, a polyolefin containing partial branched chains, and a modified polyolefin; the saturated linear polyolefin is selected from one or more of polyethylene, polypropylene and polybutylene; the polyolefin containing an unsaturated bond is selected from polybutadiene and derivatives thereof; the polyolefin containing partial branched chains is selected from poly X-olefin; and the modified polyolefin is selected from one or more of epoxy-modified polyolefin and maleic anhydride-modified polyolefin.

9. The glass fiber reinforced polycarbonate composite material according to claim 1, wherein based on the weight of the glass fiber reinforced polycarbonate composite material, the glass fiber reinforced polycarbonate composite material further comprises a component F: 0 to 10 parts of an additional auxiliary agent; the additional auxiliary agent is selected from one or more of a stabilizer, a flame retardant, an anti-drip agent, a lubricant, a release agent, a plasticizer, a filler, an antistatic agent, an antibacterial agent and a colorant.

10. A preparation method of the glass fiber reinforced polycarbonate composite material according to claim 1, comprising the following steps: 1) weighing the polycarbonate, the polysiloxane block copolymer, the phosphorus-containing compound, the polyolefin compound, and the additional auxiliary agent according to a ratio, stirring and blending for 1 to 3 min in a high-speed mixer to obtain a premix; and 2) placing the obtained premix to a major feeding port of a twin-screw extruder, and adding glass fiber to a side feeding port for melt extrusion, then performing pelleting and drying to obtain the glass fiber reinforced polycarbonate composite material.

11. The preparation method of the glass fiber reinforced polycarbonate composite material according to claim 10, wherein the twin-screw extruder has a length-diameter ratio of 46:1 to 50:1; and temperatures of the twin-screw extruder from a feeding section to a head section are successively: 120° C. to 160° C. in a zone I, 200° C. to 230° C. in a zone II, 200° C. to 230° C. in a zone III, 200° C. to 220° C. in a zone IV, 200° C. to 220° C. in a zone V, 200° C. to 220° C. in a zone VI, 200° C. to 220° C. in a zone VII, 200° C. to 220° C. in a zone VIII, 200° C. to 220° C. in a zone IX, 200° C. to 220° C. in a zone X, 200° C. to 220° C. in a zone XI, and 220° C.- to 240° C. in the head section; and a main engine revolution speed is 350 rpm to 500 rpm.

12. A use of the glass fiber reinforced polycarbonate composite material obtained by the preparation method according to claim 10 in automobiles, electronic and electrical industry, communications industry, and construction industry.

13. The glass fiber reinforced polycarbonate composite material according to claim 2, wherein in the glass fiber reinforced polycarbonate composite material, a percentage of a siloxane content accounting for a total weight percentage of the composite material is 0.6 wt % to 17 wt %.

14. The glass fiber reinforced polycarbonate composite material according to claim 2, wherein in the glass fiber reinforced polycarbonate composite material, a weight ratio of phosphorus to silicon is 1:0.1 to 1:3.2.

15. The glass fiber reinforced polycarbonate composite material according to claim 2, wherein the polycarbonate is selected from one or more of an aromatic polycarbonate, an aliphatic polycarbonate, an aromatic-aliphatic polycarbonate, and a branched polycarbonate; the aromatic polycarbonate is an aromatic polycarbonate having a viscosity-average molecular weight of 13,000 to 40,000.

16. The glass fiber reinforced polycarbonate composite material according to claim 2, wherein the polysiloxane block copolymer comprises a polydimethylsiloxane block and a polycarbonate block of bisphenol A, having a siloxane content of 0.6 wt % to 36 wt % based on a weight of the component B.

17. The glass fiber reinforced polycarbonate composite material according to claim 2, wherein the phosphorus-containing compound is selected from an oxygen-bearing phosphoric acid, phosphates and derivatives thereof; the oxygen-bearing phosphoric acid is selected from phosphoric acid and/or hypophosphorous acid; and the phosphates and derivatives thereof are selected from sodium phosphate and/or zinc hypophosphite.

18. The glass fiber reinforced polycarbonate composite material according to claim 2, wherein the polyolefin compound is selected from one or more of a saturated linear polyolefin, a polyolefin containing an unsaturated bond, a polyolefin containing partial branched chains, and a modified polyolefin; the saturated linear polyolefin is selected from one or more of polyethylene, polypropylene and polybutylene; the polyolefin containing an unsaturated bond is selected from polybutadiene and derivatives thereof; the polyolefin containing partial branched chains is selected from poly X-olefin; and the modified polyolefin is selected from one or more of epoxy-modified polyolefin and maleic anhydride-modified polyolefin.

19. The glass fiber reinforced polycarbonate composite material according to claim 2, wherein based on the weight of the glass fiber reinforced polycarbonate composite material, the glass fiber reinforced polycarbonate composite material further comprises a component F: 0 to 10 parts of an additional auxiliary agent; the additional auxiliary agent is selected from one or more of a stabilizer, a flame retardant, an anti-drip agent, a lubricant, a release agent, a plasticizer, a filler, an antistatic agent, an antibacterial agent and a colorant.

Description

DESCRIPTION OF EMBODIMENTS

[0038] The present invention will be further described by detailed implementations hereafter; the following embodiments are preferred implementations of the present invention, but implementations of the present invention are not limited to the following embodiments.

[0039] Test standards or methods of each performance:

[0040] test mode for Izod unnotched impact strength: according to ASTM D256-2010 standard;

[0041] test mode for tensile strength: according to ASTM D638-2014 standard, with a tensile speed of 10 mm/min;

[0042] test mode for flexural modulus: according to ASTM D790-2010 standard, with a bending speed of 2 mm/min; and

[0043] test mode for mobility: according to ASTM D1238-2013 standard, with a melting temperature of 300° C.

[0044] The polycarbonate used in the present invention: [0045] component A-1: aromatic polycarbonate having a viscosity-average molecular weight of 18,000, Idemitsu; and [0046] component A-2: aromatic polycarbonate having a viscosity-average molecular weight of 27,000, Idemitsu.

[0047] The polysiloxane block copolymer used in the present invention: [0048] component B-1: polysiloxane block copolymer having a siloxane content of 8 wt %, Idemitsu; and [0049] component B-2: polysiloxane block copolymer having a siloxane content of 34 wt %, Idemitsu.

[0050] The glass fiber used in the present invention: [0051] component C-1: TOYOBO.

[0052] The phosphorus-containing compound used in the present invention: [0053] component D-1: hypophosphorous acid, Aladdin; and [0054] component D-2: sodium phosphate, Budenheim Chemicals.

[0055] The polyolefin compound used in the present invention: [0056] component E-1: polyethylene, manufacturer: Sinopec; and [0057] component E-2: poly X-olefin, manufacturer: Chuangxin Chemicals.

[0058] The additional auxiliary agent used in the present invention: [0059] component F-1: stabilizer: 2112, ADEKA; and [0060] component F-2: lubricant: PETS, Lonza.

Embodiments 1 to 8 and Comparative Examples 1 to 6: Preparation of a Glass Fiber Reinforced Polycarbonate Composite Material

[0061] A polycarbonate, a polysiloxane block copolymer, a phosphorus-containing compound, a polyolefin compound, and an additional auxiliary agent were weighed according to a ratio, stirred and blended for 1 to 3 min in a high-speed mixer to obtain a premix; and the obtained premix was placed to a major feeding port of a twin-screw extruder, and glass fiber was added to a side feeding port for melt extrusion, then subjected to pelleting and drying to obtain the glass fiber reinforced polycarbonate composite material. The Izod notched impact strength, Izod unnotched impact strength, tensile strength, flexural modulus and mobility of the above glass fiber reinforced polycarbonate composite material were tested. Data obtained from the tests are shown in Table 1.

TABLE-US-00001 TABLE 1 specific ratios (parts by weight) and test performance results of Embodiments 1 to 8 and Comparative Examples 1 to 6 Embodi- Embodi- Embodi- Embodi- Embodi- Embodi- Embodi- Embodi- ment 1 ment 2 ment 3 ment 4 ment 5 ment 6 ment 7 ment 8 Polycarbonate Component 65 65 65 65 65 40 A-1 Component 65 90 A-2 Siloxane Component 35 20 block B-1 copolymer Component 35 20 25 45 1.5 50 B-2 Glass fiber Component 20 20 20 20 20 20 30 30 C-1 Phosphorus- Component 10 10 10 10 10 30 1 containing D-1 compound Component 10 D-2 Polyolefin Component 8 8 8 8 8 30 1 compound E-1 Component 8 E-2 Other Component 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 auxiliary F-1 agent Component 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 F-2 Siloxane content (wt %) 2.8 11.9 6.8 8.5 1.6 13.5 1.2 17 Weight ratio of 1:0.6 1:2.5 1:0.3 1:2.8 1:1.0 1:1.5 1:0.1 1:3.2 phosphorus to silicon Izod notched impact 13.7 15.4 12.8 12.5 10.7 12.3 9.7 9.2 strength (kJ/m.sup.2) Izod unnotched impact 40.2 39.8 35.6 32.5 31.6 32.7 28.9 28.6 strength (kJ/m.sup.2) Tensile strength (MPa) 113.2 111.8 110.3 110.2 108.4 109.2 105.3 103.8 Flexural modulus (MPa) 5760 5689 5678 5540 5532 5287 5114 5022 Mobility (g/min) 32.1 28.9 25.3 23.6 24.3 22.1 19.4 19.2 Comparative Comparative Comparative Comparative Comparative Comparative Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Polycarbonate Component 65 65 65 65 65 65 A-1 Component A-2 Siloxane Component 35 35 35 35 block B-1 copolymer Component 1 65 B-2 Glass Component 20 20 20 20 20 20 fiber C-1 Phosphorus- Component 10 10 0.05 40 10 10 containing D-1 compound Component D-2 Polyolefin Component 8 8 10 10 0 40 compound E-1 Component E-2 Other Component 0.5 0.5 0.5 0.5 0.5 0.5 auxiliary F-1 agent Component 0.5 0.5 0.5 0.5 0.5 0.5 F-2 Siloxane content (wt %) 0.34 22.1 2.8 2.8 2.8 2.8 Weight ratio of 1:0.1 1:4 1:0.05 1:10 1:0.6 1:0.6 phosphorus to silicon Izod notched impact 5.8 7.2 6.8 6.1 4.3 5.7 strength (kJ/m2) Izod unnotched impact 19.4 20 18.9 17.6 15.3 14.9 strength (kJ/m2) Tensile strength (MPa) 100.4 101 98.5 99.7 96.4 98.3 Flexural modulus (MPa) 4988 4798 4872 4678 4639 4599 Mobility (g/min) 6.7 6.2 4.5 Too large 5.6 Too large to exceed to exceed the flow the flow path path