| abstract |
The present invention discloses a butyl rubber and its application as well as a composition and rubber products containing the butyl rubber. The butyl rubber contains a structural unit derived from isobutylene, a structural unit derived from a conjugated diene, and optionally The structural unit derived from the aryl olefin represented by formula I, at least part of the conjugated diene is isoprene. The invention also discloses a vehicle tire inner liner, an inner tube and a vulcanization bladder made of the butyl rubber. Compared with the existing butyl rubber, the butyl rubber of the present invention has better processing and mixing performance and lower extrusion expansion ratio, and also has good comprehensive mechanical properties, especially higher tear crack strength. The butyl rubber of the invention can effectively reduce the energy consumption in the process of processing and kneading, and the prepared product has more excellent dimensional stability and application performance. The butyl rubber of the present invention is suitable for making vehicle tire inner liner, inner tube and vulcanization bladder. |