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Sound-absorbing carbon fiber/steel fiber modified polytetrafluoroethylene material and preparation method thereof

A technology of polytetrafluoroethylene and carbon fiber, applied in the field of carbon fiber, steel fiber surface modification and polytetrafluoroethylene modified materials, can solve the problem of affecting the mechanical properties of composite materials, limiting the performance of steel fiber and carbon fiber, steel fiber and carbon fiber Surface inertia and other problems, to improve the interface bonding quality, enhance the sound absorption effect, improve the effect of surface wettability and cohesion

Inactive Publication Date: 2016-11-09
ANHU WUHU CHANGJIANG JACK UP EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the surface inertia of steel fibers and carbon fibers is large, which directly affects the mechanical properties of composite materials and limits the high performance of steel fibers and carbon fibers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] A sound-absorbing carbon fiber and steel fiber modified polytetrafluoroethylene material, characterized in that it is prepared from the following parts by weight of raw materials:

[0023] Natural zeolite 10, acetone 50 parts, polytetrafluoroethylene 80, carbon fiber 10, steel fiber 5, fluorine rubber powder 5, diatomaceous earth 4, graphene oxide 1, SiO 2 5. Silane coupling agent KH550 15, 95% ethanol 30, asbestos fiber 10, polyisocyanate JQ-1 5, dimethylformamide (DMF) 15, 4-dimethylaminopyridine (DMAP) 10, dicyclohexyl carbon Diimine (DCC) 15, 100 parts of water;

[0024] The median length of the carbon fiber is 75-150 μm, the median length of the steel fiber is 50-150 μm, and the particle size of the fluorine rubber rubber powder is 80-200 mesh.

[0025] The method for preparing a sound-absorbing carbon fiber and steel fiber modified polytetrafluoroethylene material is characterized in that it is made by the following specific steps:

[0026] a. Add carbon fiber to 25 part...

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Abstract

The invention discloses a sound-absorbing carbon fiber / steel fiber modified polytetrafluoroethylene material and a preparation method thereof. The invention is characterized in that steel fiber and carbon fiber are used for enhancing tensile strength and friction performance of polytetrafluoroethylene; and fine fillers such as SiO2, Al powder, etc. are sintered onto the surface of polytetrafluoroethylene at high temperature by an improved melting method so as to improve surface sintering condition of polytetrafluoroethylene and obviously raise joint strength. In addition, by the addition of sound absorbing materials such as natural zeolite, etc., sound-absorbing effect of the composite material is enhanced.

Description

Technical field [0001] The invention relates to the field of carbon fiber and steel fiber surface modification and polytetrafluoroethylene modified materials, in particular to a sound-absorbing carbon fiber and steel fiber modified polytetrafluoroethylene material and a preparation method thereof. Background technique [0002] Polytetrafluoroethylene (PTFE) is resistant to high and low temperatures, chemical corrosion, non-water absorption, low friction coefficient, and excellent dielectric properties. It is known as the "Plastic King". But because of its low surface energy (surface tension is (31 ~ 34)) ×10 -3 N / m), high crystallinity and symmetrical molecular chain structure is non-polar, making it difficult to be bonded, restricting its application in the field of valve sealing materials. To this end, scientists have adopted a variety of methods to try to solve the problem of surface adhesion of PTFE. Among them, there are many studies on changing the surface structure or prop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L27/12C08K13/06C08K9/06C08K9/02C08K9/08C08K7/06C08K7/12C08K3/34C08K3/36
CPCC08K2201/003C08K2201/014C08L27/18C08L2205/02C08L2205/03C08L27/12C08K13/06C08K9/06C08K9/02C08K9/08C08K7/06C08K7/12C08K3/34C08K3/36
Inventor 苗则波
Owner ANHU WUHU CHANGJIANG JACK UP EQUIP CO LTD
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