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Heat insulation carbon fiber and steel fiber-modified polytetrafluoroethylene material and preparation method thereof

A polytetrafluoroethylene and carbon fiber technology, applied in the coating and other directions, can solve the problems of fragility, deformation, poor recovery, etc., and achieve the effects of reducing production costs, simple operation steps, and improving mechanical properties

Inactive Publication Date: 2016-08-31
ANHUI RONGDA VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of ordinary styrofoam that are fragile, deformed, and poor in recovery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] A carbon fiber and steel fiber modified polytetrafluoroethylene material for heat preservation is characterized in that it is made from the following raw materials in parts by weight:

[0021] Pearl cotton scraps 15, polytetrafluoroethylene 80, carbon fiber 10, steel fiber 5, fluoro rubber powder 5, mineral wool fiber 5, graphene oxide 1, SiO 2 5. Silane coupling agent KH550 15, calcium silicate 5, 95% ethanol 30, acetic acid amount, polyisocyanate JQ-1 5, dimethylformamide (DMF) 15, 4-dimethylaminopyridine (DMAP) 10, Dicyclohexylcarbodiimide (DCC) 15,100 parts;

[0022] 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.

[0023] The preparation method of described a kind of carbon fiber of heat preservation, steel fiber modified polytetrafluoroethylene material is characterized in that, is made by following concrete steps:

[0024] a. Add carbon fi...

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PUM

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Abstract

The invention discloses a heat insulation carbon fiber and steel fiber-modified polytetrafluoroethylene material and a preparation method thereof. The material is characterized in that not only are carbon fibers and steel fibers used for improving the tensile strength and friction performance of polytetrafluoroethylene, but fine fillers such as SiO2 powder and Al powder are also sintered onto the surface of the polytetrafluoroethylene at high temperature by utilizing an improved melting method, so that the surface sintering state of the polytetrafluoroethylene is improved, and the bonding strength is obviously improved. Furthermore, a pearl cotton leftover material having a heat insulation effect is added into the polytetrafluoroethylene material in a matching way, so that the polytetrafluoroethylene material is good in heat insulation effect, and the production cost is lowered.

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 thermal insulation 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, 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 prop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L23/06C08L27/12C08K13/06C08K9/06C08K9/02C08K7/06C08K3/34C08J7/04
CPCC08J7/0427C08J2327/18C08J2427/18C08K2201/004C08K2201/014C08L27/18C08L2205/02C08L2205/035C08L2207/066C08L23/06C08L27/12C08K13/06C08K9/06C08K9/02C08K7/06C08K3/34
Inventor 胡光荣
Owner ANHUI RONGDA VALVE
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