• 专利标题:   Wear-resistant sealing material used in e.g. national defense application, comprises nitrile rubber, filler, modified graphene, silane-modified perfluoropolyether, vulcanizing agent, and accelerator.
  • 专利号:   CN116082723-A
  • 发明人:   CUI C, YE Y, HUANG R, HE H
  • 专利权人:   ANHUI XIJIA PRECISION TECHNOLOGY CO LTD
  • 国际专利分类:   C08K003/04, C08K003/06, C08K005/14, C08K009/06, C08L071/00, C08L009/02
  • 专利详细信息:   CN116082723-A 09 May 2023 C08L-009/02 202349 Chinese
  • 申请详细信息:   CN116082723-A CN11594457 13 Dec 2022
  • 优先权号:   CN11594457

▎ 摘  要

NOVELTY - A wear-resistant sealing material comprises 100 pts. wt. nitrile rubber, 60-80 pts. wt. filler, 4-6 pts. wt. modified graphene, 3-4 pts. wt. silane-modified perfluoropolyether, 1.5-2 pts. wt. vulcanizing agent, and 1-1.5 pts. wt. accelerator. The silane-modified perfluoropolyether is obtained by reacting a perfluoropolyether diol, Si69(RTM: bifunctional, sulfur-containing organosilane), and a catalyst in a fluorine-containing solvent. USE - Wear-resistant sealing piece material. Uses include but are not limited to national defense, chemical industry, petroleum, coal, basic components and accessories in industries such as transportation and mechanical manufacturing. ADVANTAGE - The wear-resistant sealing material has good wear resistance and low compression set. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the wear-resistant sealing material, which involves mixing the nitrile rubber, filler, vulcanizing agent, and accelerator, adding the modified graphene and silane-modified perfluoropolyether to continue mixing, and vulcanizing.