• 专利标题:   Thermoplastic composite material comprises rubber, polyamide elastomer, compatibilizer, functional auxiliary agent and filler comprises at least one of carbon black, white carbon black, silicone powder, aluminum silicate, diatomaceous earth, mica powder and/or zinc methacrylate.
  • 专利号:   CN114702736-A
  • 发明人:   HAO Y, WANG H, JIANG X, SHI X, LIU G
  • 专利权人:   QINGDAO ZHIJIALI RUBBER PLASTIC MATERIALS PARTNERSHIP LP
  • 国际专利分类:   C08K013/02, C08K003/04, C08K003/30, C08K005/09, C08L023/16, C08L023/22, C08L051/00, C08L077/00, C08L077/02, C08L083/04, C08L087/00, C08L009/02, C08L009/06
  • 专利详细信息:   CN114702736-A 05 Jul 2022 C08L-009/06 202292 Chinese
  • 申请详细信息:   CN114702736-A CN10216164 07 Mar 2022
  • 优先权号:   CN10216164

▎ 摘  要

NOVELTY - Thermoplastic composite material comprises 100 pts. wt. rubber, 20-100 pts. wt. polyamide elastomer, 5-20 pts. wt. compatibilizer, 0-40 pts. wt. filler and 0-20 pts. wt. functional auxiliary agent. The compatibilizer is polyamide elastomer and maleic anhydride double modified ethylene-vinyl acetate copolymer. The preparation of compatibilizer comprises taking 100 pts. wt. ethylene-vinyl acetate, 5-10 pts. wt. polyamide elastomer, 1-2 pts. wt. peroxide initiator, and 1-5 pts. wt. maleic anhydride, adding into 500-600 pts. wt. a mixed solvent consisting of chloroform and xylene at the weight ratio of 4-5:1, heating to 150-160℃ in an airtight container, stirring continuously for 8-10 hours to obtain a uniform viscous liquid, free-drying the obtained viscous liquid at -20to-15℃, and removing the solvent. USE - Used as thermoplastic composite material. ADVANTAGE - The thermoplastic composite material: has improved wear resistance and high temperature resistance and high mechanical property retention rate after high temperature aging; does not damage the other performance; and can obviously prolong the service life of the composition and the product. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing thermoplastic composite material, comprising (i) taking rubber, polyamide elastomer and compatibilizer, adding them into an internal mixer or twin-screw extruder, melting and mixing and removing the glue at 150-170℃ to obtain the main rubber compound; and (ii) adding fillers and functional auxiliary agent into the main rubber compound and kneading in an open mill at 40-50℃ for 3-5 minutes to obtain lower sheet.