高分子阻尼复合溴化剂和溴化丁基橡胶组合物及其应用

A high-damping brominated butyl rubber composition was prepared by mixing a polymeric damping composite brominated agent synthesized by anionic polymerization with brominated butyl rubber. This solved the problem of insufficient damping performance of brominated butyl rubber and achieved a balance between efficient and stable damping performance and mechanical properties.

CN117801188BActive Publication Date: 2026-07-17PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2022-09-23
Publication Date
2026-07-17

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Abstract

本发明公开了一种高分子阻尼复合溴化剂及其制备方法，该高分子阻尼复合溴化剂是由α‑烷基苯乙烯和大分子复合溴化剂通过阴离子聚合法合成出的线性嵌段共聚物。本发明还公开一种高阻尼溴化丁基橡胶组合物及其制备方法，该组合物以溴化丁基橡胶的质量为百分之百计，包括：(1)溴化丁基橡胶100％；(2)高分子阻尼复合溴化剂5.0％～10.0％。本发明制备的大分子复合溴化剂通过阴离子聚合将伯位及仲位溴结构的溴原子整合在一个大分子链上，阻断了溴结构的异构化，抑制了溴结构重排，提高了溴结构的稳定性、持久性和利用效果，赋予溴化丁基橡胶阻尼性能的高效性和稳定性。
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