摘要
应用RPA2000橡胶加工分析仪研究钼系支化高乙烯基聚丁二烯橡胶(b-HVPBR)的动态力学性能,并与BR、乳聚丁苯橡胶(ESBR)和溶聚丁苯橡胶(SSBR)进行对比。结果表明:在试验频率范围内,b-HVPBR(低频下)的剪切储能模量(G′)大于BR,SSBR和ESBR,损耗模量(G″)和损耗因子(tanδ)小于BR,SSBR和ESBR,复数粘度(η*)呈现假塑性流体的特征;在试验温度范围内,b-HVPBR的G′大于BR,SSBR和ESBR,tanδ值小于BR,SSBR和ESBR;在试验应变范围内,b-HVPBR的G′大于BR,SSBR和ESBR,tanδ值小于BR,SSBR和ESBR。
The dynamic properties of molybdenum-catalyzed branched HVPBR（b-HVPBR） were studied by using rubber processing analyzer（RPA2000）,and compared with those of BR,ESBR and SSBR.The results showed that,in the range of experimental frequency,the storage modulus（G′） of b-HVPBR was the highest under low frequency,the loss modulus（G″） and loss factor（tanδ） were smaller than those of BR,ESBR and SSBR,respectively,and their complex viscosity（η＊） showed the same trait with that of pseudoplastic fluid.In the range of experimental temperature or strain,the G′ of b-HVPBR was higher than that of BR,ESBR and SSBR,and the tanδ was smaller.
出处
《橡胶工业》
CAS
北大核心
2011年第8期466-470,共5页
China Rubber Industry
基金
国家自然科学基金资助项目(50603009)
