Polytetrafluoroethylene reactivating material high and low temperature resistant sealing member

A polytetrafluoroethylene, high and low temperature resistant technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of high price, increased cost, short service life, etc., and achieve reasonable production cost, reasonable structure, and scientific process. Effect

Inactive Publication Date: 2008-01-23
陈秉杞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the technical problems existing in the prior art, such as high price, increased cost, easy damage, difficult replacement and maintenance, short service life, and non-recyclable waste products; another purpose of th

Method used

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Examples

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Effect test

Embodiment

[0011] Embodiment: After cleaning the reclaimed polytetrafluoroethylene waste, crush it into fine powder with a high-speed pulverizer, and make a regenerated polytetrafluoroethylene fine powder after conventional heating and drying, add graphite as a filler, mix evenly, and add Pressing, heating, and then high-temperature quenching treatment can be made; the ratio of raw materials is: in parts by weight, 100 parts of polytetrafluoroethylene, 5-60 parts of filler.

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PUM

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Abstract

The invention relates to a sealing member manufactured by the modified high low temperature resistance polyfluortetraethylene recycled materials, which is manufactured in the method that the polyfluortetraethylene recycled waste is crushed to fine powders by a high-speed crusher through washing to manufacture the polyfluortetraethylene recycled fine powders after conventional heating and drying; the graphite or glass fiber are added as fillers to manufacture the sealing member through pressing and heating after mixing uniformly. The invention has the advantages of reasonable structure, scientific technology, reasonable production cost, high low temperature resistance range of minus 100 DEG C. to 350 DEG C., convenient maintenance, continuously recycled resources and environment protection without pollution.

Description

technical field [0001] The invention relates to a polytetrafluoroethylene regenerated material product, in particular to a seal made of modified high and low temperature resistant polytetrafluoroethylene regenerated material. Background technique [0002] In recent years, the requirements for seals used in equipment operating under special working conditions have become higher and higher, especially the requirements for high and low temperature resistance. At present, industries such as petroleum, chemical industry, hot spot, military industry, natural gas, automobile, and emerging shipbuilding industries generally require the working temperature of seals to be in the range of -100°C to 350°C. Domestic enterprises that need special high and low temperature resistant seals have always relied on imports or replaced them with ceramic hard seals and metal rings. The cost of using these seals is-the market price is high, the cost is increased, easy to break, and replacement and m...

Claims

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Application Information

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IPC IPC(8): C09K3/10C08L27/18C08K7/14C08K3/04
Inventor 陈秉杞
Owner 陈秉杞
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