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  • 专利标题:   Graphene-modified PTFE pump valve material for pump and valve devices comprises PTFE powder, graphene, nano-clay, aluminum sulfate, nanosilicon carbide, and auxiliary agents e.g. attapulgite, clay, cuprous chloride, and dilute graphite.
  • 专利号:   CN103756206-A
  • 发明人:   TANG X, WANG W
  • 专利权人:   ANHUI KAITE PUMP CO LTD
  • 国际专利分类:   C08K013/06, C08K003/04, C08K003/16, C08K003/22, C08K003/28, C08K003/34, C08K005/1545, C08K009/00, C08K009/02, C08L027/18
  • 专利详细信息:   CN103756206-A 30 Apr 2014 C08L-027/18 201440 Pages: 4 Chinese
  • 申请详细信息:   CN103756206-A CN10672789 12 Dec 2013
  • 优先权号:   CN10672789

▎ 摘　　要

NOVELTY - A graphene-modified PTFE pump valve material contains 100 pts. wt. PTFE powder, 2-3 pts. wt. graphene, 3-4 pts. wt. nano-clay, 1-2 pts. wt. aluminum sulfate, 2-5 pts. wt. nanosilicon carbide, and 4-5 pts. wt. auxiliary agents 30-35 pts. wt. attapulgite, 12-15 pts. wt. clay, 2-3 pts. wt. cuprous chloride, 1-2 pts. wt. dilute graphite, 5-6 pts. wt. zinc oxide, 4-5 pts. wt. jade, 2-3 pts. wt. 3-aminopropyl dimethoxysilane, 4-5 pts. wt. aluminum nitride powder, 1-2 pts. wt. rice straw ash, 1-2 pts. wt. dimethyl tin oxide, and 1-2 pts. wt. polyphenol. USE - Graphene-modified PTFE pump valve material for pump and valve devices. ADVANTAGE - The graphene-modified PTFE pump valve material is safe, reliable, and has improved hardness, toughness, high temperature resistance, and abrasion resistance and long service life. DETAILED DESCRIPTION - A graphene-modified PTFE pump valve material contains 100 pts. wt. PTFE powder, 2-3 pts. wt. graphene, 3-4 pts. wt. nano-clay, 1-2 pts. wt. aluminum sulfate, 2-5 pts. wt. nanosilicon carbide, and 4-5 pts. wt. auxiliary agents 30-35 pts. wt. attapulgite, 12-15 pts. wt. clay, 2-3 pts. wt. cuprous chloride, 1-2 pts. wt. dilute graphite, 5-6 pts. wt. zinc oxide, 4-5 pts. wt. jade, 2-3 pts. wt. 3-aminopropyl dimethoxysilane, 4-5 pts. wt. aluminum nitride powder, 1-2 pts. wt. rice straw ash, 1-2 pts. wt. dimethyl tin oxide, and 1-2 pts. wt. polyphenol obtained by calcining attapulgite and clay at 800-830 degrees C for 3-4 hours, removing, cooling, crushing, soaking in 12-15% aqueous hydrochloric acid for 1-2 hours, filtering, washing with water, drying to obtain dried powder, mixing remaining auxiliary agent raw materials, grinding, and dispersing for 2-3 hours. An INDEPENDENT CLAIM is included for production of graphene-modified PTFE pump valve material which involves crushing PTFE, mixing with graphene, nano-clay, and nanosilicon carbide, grinding to 200-400 mesh powder using water grinding medium to obtain dried powder, grinding aluminum sulfate to 200-400 mesh powder, adding auxiliary agents and dried powder, uniformly mixing, compression molding, and high temperature sintering.