High-strength and low-percolation UHMWPE (ultrahigh molecular weight polyethylene)/superconductive carbon black composite material and preparation method thereof

A technology of conductive composite materials and superconducting carbon black, which is applied in the field of preparation of high-strength and low-percolation UHMWPE/superconducting carbon black conductive composite materials, which can solve the problems of low strength, decreased mechanical properties such as strength and toughness, and high melt viscosity. , to achieve high tensile strength and toughness, good surface gloss, and good antistatic performance

Inactive Publication Date: 2019-05-10
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultra-high molecular weight polyethylene has many excellent properties, such as wear resistance, impact resistance, chemical corrosion resistance, self-lubrication, etc., but there are many shortcomings: low heat distortion temperature, low hardness, low strength, poor temperature resistance , high melt viscosity, poor fluidity and other shortcomings, which limit its application, to modify its UHMWPE, the modification methods mainly include physical modification (filling modification), chemical modification

Method used

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  • High-strength and low-percolation UHMWPE (ultrahigh molecular weight polyethylene)/superconductive carbon black composite material and preparation method thereof
  • High-strength and low-percolation UHMWPE (ultrahigh molecular weight polyethylene)/superconductive carbon black composite material and preparation method thereof
  • High-strength and low-percolation UHMWPE (ultrahigh molecular weight polyethylene)/superconductive carbon black composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] A high-strength and low-percolation UHMWPE / superconducting carbon black conductive composite material is composed of: 89 parts of UHMWPE powder, 10 parts of superconducting carbon black, antioxidant 420 / antioxidant 1010 / antioxidant 168 compound (mass ratio =1 / 1 / 1) 0.5 part, 0.5 part titanate coupling agent.

[0030] The preparation method is carried out according to the following steps:

[0031] A. Drying: Dry the UHMWPE powder and superconducting carbon black in a drying box at 80°C for 5 hours;

[0032] B. Weighing: UHMWPE powder / superconducting carbon black / antioxidant / titanate coupling agent according to the weight ratio = 89 / 10 / 0.5 / 0.5, weigh each component;

[0033] C. Superconducting carbon black coupling agent treatment: add 10 parts of superconducting carbon black and 0.5 parts of titanate coupling agent into the high-mixer, keep the speed of 600~2000 rpm, and stir at high speed for 5~30min to obtain superconductivity Carbon black coupling agen...

Example Embodiment

[0036] Example 2

[0037] A high-strength low-percolation UHMWPE / superconducting carbon black conductive composite material is composed of: 94 parts of UHMWPE powder, 5 parts of superconducting carbon black, antioxidant 420 / antioxidant 1010 / antioxidant 168 (mass ratio =1 / 1 / 1) 0.5 part, 0.5 part titanate coupling agent.

[0038] The preparation method is carried out according to the following steps:

[0039] A. Drying: Dry the UHMWPE powder and superconducting carbon black in a drying box at 80°C for 5 hours;

[0040] B. Weighing: UHMWPE powder / superconducting carbon black / antioxidant / titanate coupling agent according to the weight ratio = 94 / 5 / 0.5 / 0.5, weigh each component;

[0041] C. Superconducting carbon black coupling agent treatment: add 5 parts of superconducting carbon black and 0.5 parts of titanate coupling agent into the high-mixer, keep the speed of 600~2000 rpm, and stir at high speed for 5~30min to obtain superconductivity Carbon black coupling agent treatment prod...

Example Embodiment

[0044] Example 3

[0045] A high-strength and low-percolation UHMWPE / superconducting carbon black conductive composite material is composed of: 96 parts of UHMWPE powder, 3 parts of superconducting carbon black, antioxidant 420 / antioxidant 1010 / antioxidant 168 (mass ratio =1 / 1 / 1) 0.5 part, 0.5 part titanate coupling agent.

[0046] The preparation method is carried out according to the following steps:

[0047] A. Drying: Dry the UHMWPE powder and superconducting carbon black in a drying box at 80°C for 5 hours;

[0048] B. Weighing: UHMWPE powder / superconducting carbon black / antioxidant / titanate coupling agent according to the weight ratio = 96 / 3 / 0.5 / 0.5, weigh each component;

[0049] C. Superconducting carbon black coupling agent treatment: Add 3 parts of superconducting carbon black and 0.5 parts of titanate coupling agent into the high-mixer, keep the speed at 600~2000 rpm, and stir at high speed for 5~30min to obtain superconductivity Carbon black coupling agent treatment produc...

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Abstract

The invention discloses a high-strength and low-percolation UHMWPE/superconductive carbon black composite material and a preparation method thereof. The high-strength and low-percolation UHMWPE/superconductive carbon black composite material is composed of, by weight parts of 85-98.9 parts of UHMWPE powder, 1-14.8 parts of superconductive carbon black, 0.1-0.6 part of antioxidant and 0.1-0.6 partof coupling agent. The preparation method of the high-strength and low-percolation UHMWPE/superconductive carbon black composite material comprises raw material drying, high-speed mixing and preparation of UHMWPE/superconductive carbon black hybrid particles, and high-temperature press forming. When the added amount of the superconductive carbon black is 1 wt%, the high-strength and low-percolation UHMWPE/superconductive carbon black composite material achieves a conductivity up to 10<-5> s/cm and is low in percolation value and high in tensile strength and tenacity. A conductive sheet press-formed by the high-strength and low-percolation UHMWPE/superconductive carbon black composite material is not only endowed with excellent mechanical performance comparable with that of the ultrahigh molecular weight polyethylene, but also endows ultrahigh molecular weight polyethylene engineering plastics with new special functions such as anti-static property and electromagnetic shielding.

Description

technical field [0001] The invention belongs to a preparation method of high-strength and low-percolation UHMWPE / superconducting carbon black conductive composite material. Background technique [0002] With the further development of electronic and electrical equipment, the application of polymer conductive composite materials has been rapidly developed. Ultra-high molecular weight polyethylene has many excellent properties, such as wear resistance, impact resistance, chemical corrosion resistance, self-lubrication, etc., but there are many shortcomings: low heat distortion temperature, low hardness, low strength, poor temperature resistance , high melt viscosity, poor fluidity and other shortcomings, which limit its application, to modify its UHMWPE, the modification methods mainly include physical modification (filling modification), chemical modification (copolymerization modification, cross-linking modification and cross-linking modification) Lianlian, etc.) and polyme...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/06C08K9/04C08K3/04
Inventor 钱庆荣成惠斌陈庆华黄宝铨杨松伟刘任嫔肖荔人
Owner FUJIAN NORMAL UNIV
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