High and low temperature resistant composite fluororubber sealing plate and preparation method thereof
By introducing plasma activation treatment and chemical bonding of the adhesive transition layer into the fluororubber sealing plate, combined with a nano-fiber dual-scale reinforcement network, the problem of interfacial bonding strength of the fluororubber sealing plate under alternating hot and cold conditions was solved, achieving higher interfacial bonding strength and longer service life.
CN122402015APending Publication Date: 2026-07-17XUANCHENG GRAND RUBBER&SEALING TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XUANCHENG GRAND RUBBER&SEALING TECH CO LTD
- Filing Date
- 2026-05-08
- Publication Date
- 2026-07-17
Smart Images
Figure SMS_1
Abstract
本发明涉及耐高低温复合氟橡胶密封板及其制备方法，包括：氟橡胶层；弹性体缓冲层；粘接过渡层，本发明通过等离子活化表面处理+双向接枝聚合物共交联+硅烷偶联剂共价锚定的三重化学键合机制，在氟橡胶层与弹性体层之间构建了完整的共价键网络，等离子活化在两侧表面引入‑OH、‑COOH、‑NH2等活性基团；FKM‑g‑MAH与氟橡胶层发生共交联形成C‑C键；EPDM‑g‑MAH与弹性体层发生共交联形成C‑C键；KH‑560一端与氟橡胶层活化表面开环加成形成C‑O‑C键，另一端与弹性体层活化表面缩合形成Si‑O‑C键，四种化学桥梁协同作用，使界面结合由物理吸附转变为化学键合。
Need to check novelty before this filing date? Find Prior Art