• 专利标题:   Environment-friendly non-toxic sealing gasket comprises elastic adhesive, non-asbestos fiber, filler and functional auxiliary agent.
  • 专利号:   CN114805963-A
  • 发明人:   JIN Q, TAN S
  • 专利权人:   SHANGHAI SEALFIRST SEALING MATERIAL CO
  • 国际专利分类:   C08K007/04, C08L001/02, C08L013/00, C08L077/10, C08L009/02
  • 专利详细信息:   CN114805963-A 29 Jul 2022 C08L-009/02 202283 Chinese
  • 申请详细信息:   CN114805963-A CN10714332 26 Jun 2021
  • 优先权号:   CN10714332

▎ 摘  要

NOVELTY - Environmentally friendly non-toxic sealing gasket comprises 30-40 pts. wt. elastic adhesive, 10-12 pts. wt. non-asbestos fiber, 30-50 pts. wt. filler and 1-10 pts. wt. functional auxiliary agent. USE - Environmentally friendly non-toxic sealing gasket. ADVANTAGE - The environmentally friendly non-toxic sealing gasket has high tensile strength, good pressing and elastic resilience, good creep performance and excellent mechanical property. It has low leakage rate, good sealing property, good corrosion resistance, good durability, and can fully satisfy the requirement of customers. It is green and environment friendly, simple preparation, low price, and suitable for mass production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of environmentally friendly nontoxic sealing gasket comprising providing raw materials, sieving the non asbestos fiber to obtain non-asbestos fiber with specific length; high speed centrifuging non-asbestos fiber, filler, and functional auxiliary agent for 5-10 minutes at a rotating speed of 200-250 revolutions/minute, then adding pH regulator to adjust the pH to neutral; adding elastic adhesive, vulcanizing agent, accelerator stirring for 20-35 minutes, rotating speed is 180-230 revolutions/minute. then adding flocculating agent and agent, transcribing, hot pressing, drying, and vulcanizing.