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  • 专利标题:   High-resistant composite material for chemical process pump inner liner, comprises polytetrafluoroethylene, short glass fiber, calcium carbonate powder, silane coupling agent KH550, graphene and composite-modified diatomite powder.
  • 专利号:   CN103897307-A, CN103897307-B
  • 发明人:   CHENG Z, FENG L, HONG Z, HE J, WANG W, WEN C, WU S, FENG Q
  • 专利权人:   ANHUI WOLONG PUMP VALVE CO LTD, ANHUI WOLONG PUMP VALVE CO LTD
  • 国际专利分类:   C08K013/06, C08K003/04, C08K003/26, C08K003/34, C08K007/14, C08L027/18
  • 专利详细信息:   CN103897307-A 02 Jul 2014 C08L-027/18 201460 Pages: 4 Chinese
  • 申请详细信息:   CN103897307-A CN10118574 27 Mar 2014
  • 优先权号:   CN10118574

▎ 摘　　要

NOVELTY - A high-resistant composite material comprises 70-75 pts. wt. polytetrafluoroethylene, 10-13 pts. wt. short glass fiber, 5-8 pts. wt. calcium carbonate powder, 3-5 pts. wt. silane coupling agent KH550, 1-7 pts. wt. graphene and 2-3 pts. wt. composite-modified diatomite powder. The high-resistant composite material is prepared by grinding polytetrafluoroethylene using colloid mill, mixing other raw materials, forming uniform colloid, and passing through 50-90 mesh sieve. USE - High-resistant composite material is used for chemical process pump inner liner. ADVANTAGE - The high-resistant composite material has excellent moldability, and is economical. DETAILED DESCRIPTION - A high-resistant composite material comprises 70-75 pts. wt. polytetrafluoroethylene, 10-13 pts. wt. short glass fiber, 5-8 pts. wt. calcium carbonate powder, 3-5 pts. wt. silane coupling agent KH550, 1-7 pts. wt. graphene and 2-3 pts. wt. composite-modified diatomite powder. The high-resistant composite material is prepared by grinding polytetrafluoroethylene using colloid mill, mixing other raw materials, forming uniform colloid, and passing through 50-90 mesh sieve. The composite-modified diatomite powder comprises 80-90 pts. wt. diatomite, 10-20 pts. wt. silicon carbide, 1-2 pts. wt. titania, 0.2-0.4 pts. wt. secondary alcohol ethoxylate, 2-3 pts. wt. silane coupling agent KH-792, 0.1-0.2 pt. wt. tetrabutyltitanate, 2-5 pts. wt. zinc stearate and 1-2 pts. wt. methyl methacrylate. The composite-modified diatomite powder is calcining diatomite at 800-830 degrees C for 3-4 hours, cooling, soaking in 10-12% hydrochloric acid solution for 1-2 hours, taking out, washing with pure water, drying, adding resulting powder into 3-4 times amount of water, stirring, heating at 70-80 degrees C, adding silicon carbide, secondary alcohol ethoxylate, methyl methacrylate, silane coupling agent KH-792, stirring for 20-30 minutes, cooling, drying, obtaining diatomite composite powder, mixing resulted product with remaining materials, grinding, and dispersing.