Tea polyphenol stearate was prepared by esterification of tea polyphenols and stearic acid,and its anti-aging behavior of cis-1,4-polybutadiene rubber(BR)was studied.The results showed that the compatibility between tea polyphenol stearate and BR matrix was good,and the blooming effect was in-hibited.Compared with tea polyphenols,the initial tensile strength and elongation at break of BR were increased by tea polyphenol stearate,while the Shore A hardness and crosslinking density were decreased,and the physical and mechanical properties of BR after aging for 10 d were similar to those of BR with aniline antioxidant 4010 NA.Tea polyphenols before and after modification could inhibit significantly the cis-and trans-isomerization effect of BR in the aging process,and its effect was much better than that of antioxidant 4010 NA.
关键词
茶多酚/顺丁橡胶/脂溶性改性/物理机械性能/耐热氧老化性能
Key words
tea polyphenols/cis-1,4-polybuta-diene rubber/fat-soluble modification/physical and mechanical property/thermo-oxidative aging resis-tance
维普
万方数据