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High-strength antistatic alloy and preparation method thereof

An anti-static, high-strength technology, applied in the field of engineering plastics, can solve the problems of thermal degradation, poor aging resistance, electrostatic dust collection, electrostatic discharge, fire or explosion, etc., to achieve good permanent anti-static effect, low internal Effects of stress, excellent strength and modulus

Inactive Publication Date: 2017-05-31
DONGGUAN HONOUR E P
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the fact that PC / PBT alloys are prone to electrostatic accumulation during production, storage and use, resulting in adverse phenomena such as electrostatic dust collection and electrostatic discharge, and in severe cases, sparks may be generated, causing fires or explosions; Thermal degradation and aging resistance are poor, so it is necessary to modify its alloys in terms of antistatic and aging resistance and expand the application of materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Silicone modified bisphenol A aromatic PC 50;

[0038] PBT 30;

[0039] carbon fiber 6;

[0040] flake graphite 3;

[0041] Compatibilizer 5;

[0042] transesterification inhibitor 0.1;

[0043] Antioxidant 0.4;

[0044] Lubricant 0.3;

[0045] UV absorber 0.2;

[0046] a. Weigh silicone-modified bisphenol A aromatic PC and PBT according to the weight ratio, and add them into a high-speed mixer and mix evenly;

[0047] b. Then add graphite flakes, compatibilizers, transesterification inhibitors, antioxidants, lubricants, and ultraviolet absorbers in antistatic fillers weighed by weight, and stir together for 5 minutes to achieve uniform mixing, then discharge ;

[0048] c. Put the mixed raw materials in step b into a twin-screw extruder, weigh the carbon fiber in the antistatic filler according to the formula, feed it into the extruder from the side, melt and extrude, cool and granulate to obtain the finished product; The melting temperature of the extruder dur...

Embodiment 2

[0050] Silicone modified bisphenol A aromatic PC 60;

[0051] PBT 25;

[0052] carbon fiber 7;

[0053] flake graphite 3.5;

[0054] Compatibilizer 10;

[0055] transesterification inhibitor 0.1;

[0056] Antioxidant 0.6;

[0057] Lubricant 0.3;

[0058] UV absorber 0.2;

[0059] a. Weigh silicone-modified bisphenol A aromatic PC and PBT according to the weight ratio, and add them into a high-speed mixer and mix evenly;

[0060] b. Then add graphite flakes, compatibilizers, transesterification inhibitors, antioxidants, lubricants, and ultraviolet absorbers in antistatic fillers weighed by weight, and stir together for 5 minutes to achieve uniform mixing, then discharge ;

[0061]c. Put the mixed raw materials in step b into a twin-screw extruder, weigh the carbon fiber in the antistatic filler according to the formula, feed it into the extruder from the side, melt and extrude, cool and granulate to obtain the finished product; The melting temperature of the extruder d...

Embodiment 3

[0063] Silicone modified bisphenol A aromatic PC 70;

[0064] PBT 30;

[0065] carbon fiber 6.8;

[0066] flake graphite 3.4;

[0067] Compatibilizer 7;

[0068] transesterification inhibitor 0.2;

[0069] Antioxidant 0.6;

[0070] Lubricant 0.3;

[0071] UV absorber 0.2;

[0072] a. Weigh silicone-modified bisphenol A aromatic PC and PBT according to the weight ratio, and add them into a high-speed mixer and mix evenly;

[0073] b. Then add graphite flakes, compatibilizers, transesterification inhibitors, antioxidants, lubricants, and ultraviolet absorbers in antistatic fillers weighed by weight, and stir together for 5 minutes to achieve uniform mixing, then discharge ;

[0074] c. Put the mixed raw materials in step b into a twin-screw extruder, weigh the carbon fiber in the antistatic filler according to the formula, feed it into the extruder from the side, melt and extrude, cool and granulate to obtain the finished product; The melting temperature of the extruder...

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Abstract

The invention discloses a high-strength antistatic alloy and a preparation method thereof. a PC (Polycarbonate) / PBT (Polybutylece Terephthalate) alloy is prepared from the following raw materials in parts by weight: 50 to 80 parts of PC, 20 to 40 parts of PBT, 8 to 18 parts of antistatic filler, 3 to 11 parts of compatibilizer, 0.05 to 0.3 part of ester exchange inhibitor, 0.2 to 0.6 part of antioxidant, 0.2 to 0.6 part of lubricating agent and 0.1 to 0.5 part of ultraviolet absorbent. According to the high-strength antistatic alloy disclosed by the invention, the PC / PBT alloy is subjected to blending modification by adopting assistants such as the compatibilizer, the ester exchange inhibitor and the antistatic filler, so that a prepared alloy system has the advantages of respective excellent properties of the PC and the PBT baste materials, excellent antistatic property, high strength, small warp, good dimensional stability, good processing fluidity and excellent chemical solvent resistance, and further the high-strength antistatic alloy can be widely applied to the fields of automobiles, household appliances, illumination, electronic communication and the like.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics, and in particular relates to a high-strength antistatic alloy and a preparation method thereof. Background technique [0002] In recent years, with the continuous increase in the demand for electronic appliances and office equipment and the gradual improvement in the performance and appearance requirements, the application of polycarbonate (PC) has continued to expand, and its demand has also continued to increase. However, with the continuous upgrading of electronic and electrical products, the requirements for materials are becoming more and more stringent. General polycarbonate can no longer meet the requirements of some products; and polycarbonate melt has high viscosity, fluidity, solvent resistance, It has poor wear resistance, high sensitivity to notches, and is prone to high temperature hydrolysis and stress cracking, which greatly affects its further application. [0003] P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08K13/04C08K7/06C08K7/00C08K3/04C08K5/521C08K5/524
CPCC08L69/00C08K2201/001C08L2201/04C08L2201/08C08L2205/03C08L2205/035
Inventor 祁博曹建伟李红刚李攀
Owner DONGGUAN HONOUR E P
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