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PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE MOLDING USING LUBRICANT, BELT-PRESS DEHYDRATOR, PROCESS FOR DEHYDRATION OF SOLID WET MATTERS
PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE MOLDING USING LUBRICANT, BELT-PRESS DEHYDRATOR, PROCESS FOR DEHYDRATION OF SOLID WET MATTERS
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机译:润滑剂,带压脱水机,固态湿物脱水工艺生产聚四氟乙烯成型工艺
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摘要
A process for production of a polytetrafluoroethylene (PTFE) molding comprising the step of adding a lubricant to an aqueous dispersion of PTFE to co-coagulate PTFE and a swelling agent and obtain a lubricant-containing wet PTFE powder, the step of molding the wet powder to obtain a molding, and the step of removing the lubricant from the molding. This process can reduce the number of the process steps. Further, the present invention provides a process and apparatus for dehydrating a solid wet matter characterized in that a difference is provided between the travelling speeds of a pair of filter cloth belts clamping the solid wet matter, and at least one of the belts is oscillated in the transverse direction of the belt.
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