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Halogen-free flame-retardant polyethylene material reinforced by carbon fiber

A technology of flame-retardant polyethylene and carbon fiber, which is applied in the field of halogen-free flame-retardant polyethylene materials, can solve the problems of weak interfacial adhesion of composite materials, poor wettability of resin matrix, and few active functional groups, so as to improve compatibility and adhesion. Composite performance, good halogen-free flame retardancy, no droplet effect

Inactive Publication Date: 2014-06-25
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon fiber 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 resin matrix, the interface adhesion of composite materials is weak, which seriously affects the The overall excellent performance of composite materials, and the chemical inertness of polyethylene also makes the adhesion between carbon fiber and matrix resin poor, thus affecting the transfer of stress

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A carbon fiber-reinforced halogen-free flame-retardant polyethylene material, the components of which are: polyethylene 54%, carbon fiber 20%, aluminum hydroxide 18%, microencapsulated red phosphorus 4%, ethylene-acrylic acid methyl Ester-glycidyl methacrylate terpolymer (E-MA-GMA) 2%, polyethylene wax 1.5%, hindered phenol antioxidant 1010 and phosphite antioxidant 168 compound 0.5%. The carbon fiber is a carbon fiber whose surface has been oxidized. The specific method is to prepare a treatment solution, mix and prepare 60wt% nitric acid, 30wt% sodium nitrate and 10wt% hydrogen peroxide, and add water to prepare a solution with a concentration of 60% to 70%. Then heat it to 60°C-90°C, and then add carbon fiber for soaking treatment. At a reaction temperature of 40°C-90°C, after soaking for 30-90 minutes, take out the carbon fiber, rinse it with water, and then soak it at 80°C-120°C. Drying at high temperature can obtain the carbon fiber whose surface has been oxidized...

Embodiment 2

[0022] A carbon fiber-reinforced halogen-free flame-retardant polyethylene material, the components of which are: 48% polyethylene, 25% carbon fiber, 20% magnesium hydroxide, 4% microencapsulated red phosphorus, ethylene-acrylic acid methyl Ester-glycidyl methacrylate terpolymer (E-MA-GMA) 2%, polyethylene wax 0.8%, hindered phenol antioxidant 1010 and phosphite antioxidant 168 compound 0.2%. The carbon fiber is a carbon fiber whose surface has been oxidized. The specific method is to prepare a treatment solution, mix and prepare 70wt% nitric acid, 15wt% sodium nitrate and 15wt% hydrogen peroxide, and add water to prepare a solution with a concentration of 60% to 70%. Then heat it to 60°C-90°C, and then add carbon fiber for soaking treatment. At a reaction temperature of 40°C-90°C, after soaking for 30-90 minutes, take out the carbon fiber, rinse it with water, and then soak it at 80°C-120°C. Drying at high temperature can obtain the carbon fiber whose surface has been oxidize...

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PUM

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Abstract

The invention discloses a halogen-free flame-retardant polyethylene material reinforced by carbon fiber. The polyethylene material comprises following components by weight: 40-70% of polyethylene, 10-40% of the carbon fiber, 15-30% of a halogen-free flame retardant, 3-6% of a flame retardation synergist, 1-3% of a compatibilizer, 0.5-2% of a dispersant and 0.1-1% of an antioxidant. Beneficial effects of the polyethylene material are that: compared with the prior art, the polyethylene material has good halogen-free flame retardant property (with the oxygen index being larger than 30) and meets the UL94-0 flame retardant level standards; the polyethylene material is small in fuming amount, nontoxic, free of molten droplets, and the like; the surface containing the carbon fiber is subjected to oxidation treatment, thus largely enhancing the compatibility and adhering performance of the carbon fiber and the polyethylene; and the polyethylene material has advantages of high strength, high modulus, high heat resistance, high wear resistance, high corrosion resistance, and the like, and is suitable for application in various environment conditions.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a carbon fiber-reinforced halogen-free flame-retardant polyethylene material. Background technique [0002] Polyethylene is a light, non-toxic, thermoplastic material with excellent electrical insulation properties and chemical corrosion resistance. It is cheap and easy to form and process. It is widely used in electrical appliances, chemicals, food, machinery and other industries. However, polyethylene has the disadvantages of poor flame resistance and insufficient strength as an engineering plastic. The flame retardant of polyethylene mainly adopts the halogen / antimony trioxide system, because the halogen flame retardant releases a large amount of toxic and corrosive Hydrogen halide gas, which seriously pollutes the environment. [0003] Carbon fiber has the characteristics of high strength, low density, high temperature resistance, water resistance, and corrosion re...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/06C08K9/02C08K7/06C08K9/10C08K3/02C08K3/22
CPCC08L23/06C08L2201/02C08L2201/22C08L2205/025C08L2205/03
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC