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Carbon fiber conductive enhanced PET/polyester alloy and preparation method thereof

A technology of polyester alloy and conductive enhancement, which is applied in the field of carbon fiber conductive reinforced PET/polyester alloy and its preparation, can solve the problems of carbon fiber reinforcement and conductive effect not fully exerted, and unsatisfactory mechanical properties, so as to achieve enhanced mechanical properties and improve Mechanical properties, the effect of high mechanical properties

Inactive Publication Date: 2014-09-03
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above alloy materials are reinforced with carbon fibers, no silane coupling agent is added to improve the dispersion and interfacial force of carbon fibers between resin matrices. Therefore, the reinforcing and conductive effects of carbon fibers have not been fully utilized. The mechanical properties are not ideal

Method used

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  • Carbon fiber conductive enhanced PET/polyester alloy and preparation method thereof
  • Carbon fiber conductive enhanced PET/polyester alloy and preparation method thereof
  • Carbon fiber conductive enhanced PET/polyester alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A conductive carbon fiber reinforced PET / polyester alloy, calculated by weight percentage, the composition and content of its raw materials are as follows:

[0059]

[0060] PET is polyethylene terephthalate with a viscosity of 0.8-0.9dl / g;

[0061] The polyester is polyethylene-2,6-naphthalate;

[0062] The nucleating agent is Surlyn8920;

[0063] The conductive filler may be one or a mixture of more than one of natural flake graphite powder, artificial graphite powder, expanded graphite, carbon black, and conductive metal powder;

[0064] The carbon fiber has a tensile strength of 5200MPa, and the carbon fiber grade is T700;

[0065] Coupling agent is silane coupling agent KH-570;

[0066] Antioxidant is a mixture of antioxidant 168 and antioxidant 1010 in a ratio of 3:7;

[0067] The lubricant is paraffin wax.

[0068] The above-mentioned preparation method of conductive carbon fiber reinforced PET / polyester alloy specifically includes the following steps:

[0069] (1) Put 34.8% PE...

Embodiment 2

[0073] A conductive carbon fiber reinforced PET / polyester alloy, calculated by weight percentage, the composition and content of its raw materials are as follows:

[0074]

[0075] PET is polyethylene terephthalate with a viscosity of 0.8-0.9dl / g;

[0076] The polyester is polytrimethylene terephthalate;

[0077] The nucleating agent is Surlyn8920;

[0078] The conductive filler may be one or a mixture of more than one of natural flake graphite powder, artificial graphite powder, expanded graphite, carbon black, and conductive metal powder;

[0079] The carbon fiber has a tensile strength of 5200MPa, and the carbon fiber grade is T700;

[0080] Compatibilizer is silane coupling agent KH-570;

[0081] Antioxidant is a mixture of antioxidant 168 and antioxidant 1010 in a ratio of 3:7;

[0082] The lubricant is polyethylene wax.

[0083] The above-mentioned preparation method of conductive carbon fiber reinforced PET / polyester alloy specifically includes the following steps:

[0084] (1) Put 37...

Embodiment 3

[0088] A conductive carbon fiber reinforced PET / polyester alloy, calculated by weight percentage, the composition and content of its raw materials are as follows:

[0089]

[0090] PET is polyethylene terephthalate with a viscosity of 0.8-0.9dl / g;

[0091] The polyester is polybutylene terephthalate;

[0092] The nucleating agent is Surlyn8920;

[0093] The conductive filler may be one or a mixture of more than one of natural flake graphite powder, artificial graphite powder, expanded graphite, carbon black, and conductive metal powder;

[0094] The carbon fiber has a tensile strength of 5200MPa, and the carbon fiber grade is T700;

[0095] Compatibilizer is silane coupling agent KH-570;

[0096] Antioxidant is a mixture of antioxidant 168 and antioxidant 1010 in a ratio of 3:7;

[0097] The lubricant is polyethylene wax.

[0098] The above-mentioned preparation method of conductive carbon fiber reinforced PET / polyester alloy specifically includes the following steps:

[0099] (1) Put 37.4% ...

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Abstract

The invention relates to a carbon fiber conductive enhanced PET / polyester alloy and a preparation method thereof. The carbon fiber conductive enhanced PET is prepared from the following raw materials in percentage by weight: 60-70 percent of PET, 5-20 percent of polyester, 2-4 percent of nucleating agent, 0.5-10 percent of conductive fillers, 5-20 percent of carbon fibers, 1-2 percent of coupling agents, 0.5-1 percent of antioxygen and 0.5-1 percent of lubricants. The preparation method comprises the following steps of: filling PET, the polyester, the nucleating agents, the conductive fillers, the coupling agents, the antioxygen and the lubricants into a high blending machine for blending for 3-5 minutes; adding the mixture from a first section of a cylinder body of a twin-screw extruder and adding carbon fibers from a fourth section of the cylinder body of the twin-screw extruder; extruding and pelleting at the temperature of 240-250 DEG C while controlling the rotation speed of the twin-screw extruder to be 1050-1200rpm to obtain the carbon fiber conductive enhanced PET / polyester alloy with high mechanical property, short formation period and attractive appearance of the product.

Description

Technical field [0001] The invention belongs to the field of polymer materials, and particularly relates to a carbon fiber conductive reinforced PET / polyester alloy and a preparation method thereof. Background technique [0002] Nowadays, with the continuous development of industry and the continuous progress of society, the pollution is becoming more and more serious. Therefore, it is urgent to find an environment-friendly, low-carbon, environmentally friendly, and sustainable development model. Especially in terms of materials, metal smelting consumes energy and has a lot of pollution. The use of polymer materials to replace metal materials in certain fields can effectively reduce Energy consumption and pollution reduction. Therefore, plastic products that are relatively lightweight and relatively easy to process have become ideal substitutes. However, polymer materials do not have the properties of metal materials in some aspects, which are not conducive to processing and ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/04C08K7/06C08K3/04C08K7/24C08K3/08C08K5/5425C08J5/04
Inventor 徐群杰付杰辉陈晓东王瑞元王锡军
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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