Carbon nano-polytetrafluoroethylene valve seal ring filled with ceramic sol
A polytetrafluoroethylene and valve sealing technology, which is applied in the field of valve sealing rings, can solve the problems of easy aging, low strength and hardness, etc., and achieve the effects of good installation resilience, increased service life, and good extrusion deformation resistance
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[0021] A carbon nano-polytetrafluoroethylene valve sealing ring filled with ceramic sol, prepared from the following components by weight: 100 parts of polytetrafluoroethylene, 8 parts of carbon nanotubes, 10 parts of phenol, p-toluic acid 10 parts, 1 part of bentonite, 2 parts of barium strontium titanate, 8 parts of diphenyl ether, 1 part of butyl titanate, 25 parts of 60-70% sodium hypochlorite, 25 parts of EDTA, 50 parts of ammonia water, 100 parts of absolute ethanol, 3 parts of ionized water, 20 parts of glacial acetic acid, 40 parts of ethylene glycol methyl ether, 8 parts of dehydrating agent acetic anhydride, 3 parts of polyvinyl alcohol, 3 parts of barium sulfate, 1 part of molybdenum disulfide, 3 parts of silane coupling agent kh550, Ammonium chloride 10 parts, urea 30 parts, water 30 parts.
[0022] A carbon nano-polytetrafluoroethylene valve sealing ring filled with ceramic sol is prepared by the following steps:
[0023] (1) Activation of carbon nanotubes
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