Microstructure and mechanical properties of high cis-polybutadiene rubber produced by Sinopec Beijing Yanshan Branch
Cis-1,4 content,molecular weight and its distribution of high cis-polybutadiene rubber(BR)synthesized by nickel and neodymium-based catalyst of Yanshan Petrochemical synthetic rubber Factory were compared.The effects of microstructure parameters on the properties of raw rubber,processing properties,mechanical properties and dynamic mechanical properties of vulcanizates were analyzed.The results showed that:the microstructure parameters were the key factors affecting the green strength and mechanical properties of BR,and the ultra-high cis-1,4 content and narrow molecular weight distribution were beneficial to improve the mechanical properties and dynamic mechanical properties.
high cis-polybutadiene rubbercis-1,4 contentprocessing propertydynamic mechanical property
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