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High modulus carbon fiber modified polyethylene composite material

A composite material and carbon fiber technology, applied in the field of high modulus carbon fiber modified polyethylene composite materials, can solve the problems affecting the excellent performance of composite materials, poor polyethylene wettability, weak interface adhesion, etc., and achieve good prospects and economic benefits. , The effect of high heat resistance and environmental stress resistance

Inactive Publication Date: 2015-08-19
QINGDAO WANLI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon fiber-filled reinforced polyethylene has very high specific strength, but due to the smooth surface of carbon fiber, less active functional groups, low surface energy, surface chemical inertness, and poor wettability with polyethylene, the interface adhesion of the blend is weak and serious It greatly affects the overall excellent performance of the composite material

Method used

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Embodiment Construction

[0012] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0013] A high-modulus carbon fiber modified polyethylene composite material, the components of which are: 82% polyethylene, 10% surface-modified carbon fiber, 5% nano-talc powder, styrene-maleic anhydride random copolymerization Compound 1.5%, silane coupling agent 0.3%, 1010 antioxidant 0.2%, 168 antioxidant 0.2%, pentaerythritol stearate 0.8%. Wherein, the surface-modified carbon fiber is a carbon fiber whose surface has been treated with polyacrylonitrile.

[0014] The preparation method is as follows: (1) Preparation of surface-modified carbon fiber: first, polyacrylonitrile is prepared into a solution of 10% to 25% (by mass) with acetone, then added to infiltrate carbon fiber, and then the infiltrated carbon fiber is heated at 50°C to Pre-oxidize in an oven at 300°C for 0.1 to 100 hours, and dry to obtain surface-modified carbon fibers for u...

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Abstract

The present invention discloses a high modulus carbon fiber modified polyethylene composite material, which comprises, by mass, 80-90% of polyethylene, 5-15% of surface modified carbon fibers, 2-5% of nanometer talc powder, 1-3% of a styrene-maleic anhydride random copolymer, 0.1-0.5% of a silane coupling agent, 0.1-0.5% of an antioxidant 1010, 0.1-0.5% of an antioxidant 168, and 0.1-1% of pentaerythrityl tetrastearate, wherein the surface modified carbon fibers are carbon fibers with the surface treated by polyacrylonitrile. The high modulus carbon fiber modified polyethylene composite material of the present invention has beneficial effects of high strength, high modulus, high heat resistance, good dispersion, strong environmental stress resistance, and the like, and provides good prospects and economic benefits in the industries of electrical apparatuses, chemical industry, medicine, machinery and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high modulus carbon fiber modified polyethylene composite material. Background technique [0002] Polyethylene is a lightweight, non-toxic thermoplastic material with excellent electrical properties and chemical corrosion resistance. It has been widely used in electrical appliances, chemicals, machinery, pipes and other industries. Carbon fiber has the characteristics of high modulus, high strength, low density, high temperature resistance, water resistance, corrosion resistance, etc. It is an excellent high modulus, high strength reinforcing material, and has been widely used in various fields of military and civilian industries. Carbon fiber-filled reinforced polyethylene has very high specific strength, but due to the smooth surface of carbon fiber, less active functional groups, low surface energy, surface chemical inertness, and poor wettability with polyethylene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L35/06C08K13/06C08K9/06C08K9/04C08K7/06C08K3/34C08K5/134C08K5/526C08K5/103
CPCC08L23/06C08K2201/011C08L2201/08C08L35/06C08K13/06C08K7/06C08K3/34C08K5/103
Inventor 不公告发明人
Owner QINGDAO WANLI TECH
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