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Polytetrafluoroethylene/barium sulfate composite and preparation method thereof

A polytetrafluoroethylene, composite material technology, applied in the field of carbon fiber, steel fiber surface modification and polytetrafluoroethylene modified material, can solve the limitations of high performance of steel fiber and carbon fiber, high inertia of steel fiber and carbon fiber surface, influence The mechanical properties of composite materials and other issues can increase the adhesion, improve the surface wettability and adhesion, and improve the gloss and biocompatibility.

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 1

[0021] The technical problem to be solved in the present invention adopts following technical scheme to realize:

[0022] A polytetrafluoroethylene / barium sulfate composite material is characterized in that it is made from the following raw materials in parts by weight:

[0023] Barium sulfate 5, polytetrafluoroethylene 80, carbon fiber 10, nano diamond powder 3, steel fiber 5, fluoro rubber powder 5, erucamide 1, graphene oxide 1, SiO 2 5. Silane coupling agent KH550 15, 95% ethanol 30, acetic acid amount, polyisocyanate JQ-1 5, dimethylformamide (DMF) 15, 4-dimethylaminopyridine (DMAP) 10, dicyclohexyl carbon di Imine (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 powder is 80-200 mesh.

[0025] The preparation method of described a kind of polytetrafluoroethylene / barium sulfate composite material is characterized in that, is made by ...

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Abstract

The invention discloses a polytetrafluoroethylene / barium sulfate composite and a preparation method thereof. The composite is characterized in that the tensile strength and friction performance of polytetrafluoroethylene are improved by means of steel fiber and carbon fiber, the polytetrafluoroethylene surface is sintered at high temperature through an improved melting method by means of fine filler such as SiO2 and Al powder, the sintering state of the polytetrafluoroethylene surface is improved, and the cementing strength is remarkably improved. In addition, the color and luster and biocompatibility of the material are improved by means of erucyl amide and barium sulfate, and a foundation is laid for the application of the material in the medicine field.

Description

technical field [0001] The invention relates to the fields of carbon fiber and steel fiber surface modification and polytetrafluoroethylene modified materials, in particular to a polytetrafluoroethylene / barium sulfate composite material and a preparation method thereof. Background technique [0002] Polytetrafluoroethylene (PTFE) is resistant to high and low temperatures, chemical corrosion, no water absorption, low coefficient of friction, excellent dielectric properties, known as the "King of Plastics". But because of the low surface energy (surface tension is (31 ~ 34) ×10 -3 N / m), high crystallinity and molecular chain structure symmetry and non-polarity, making it difficult to be bonded, restricting its application in the field of valve sealing materials. For this reason, scientists have adopted various methods to try to solve the surface bonding problem of PTFE, among which there are many studies on changing the surface structure or properties of PTFE. The main ones ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L27/12C08K13/06C08K9/06C08K9/02C08K9/08C08K7/06C08K3/36C08K3/30C08K3/04C08K5/20
CPCC08K2201/003C08K2201/011C08K2201/014C08L27/18C08L2205/02C08L2205/03C08L27/12C08K13/06C08K9/06C08K9/02C08K9/08C08K7/06C08K3/36C08K2003/3045C08K3/04C08K5/20
Inventor 苗则波
Owner ANHU WUHU CHANGJIANG JACK UP EQUIP CO LTD
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