用改进的Herschel-Bulkley模型描述EPDM胶料的流变行为  

Description of rheological behavior of EPDM compound by modified Herschel-Bulkley model

作　　者：郭营[1] 戴元坎[1] 俞炜[1] 周持兴[1] 

机构地区：[1]上海交通大学高分子科学与工程系,上海200240

出　　处：《橡胶工业》2007年第9期531-534,共4页China Rubber Industry

摘　　要：采用平行板旋转流变仪测定炭黑/碳酸钙填充EPDM胶料不同温度下的流变性能。应用时温叠加原理得到胶料的流变主曲线,选用修改后的Herschel-Bulkley模型拟合主曲线。结果表明,修改后的Herschel-Bulkley模型能够较好地描述不同牌号EPDM胶料的非线性流变行为,同时确定了一系列模型相关参数。The rheological behavior of EPDM compound filled with carbon black and calcium carbonate at different temperatures was determined by rotational rheometer with parallel-plate geometry. The master flow curve of rubber compound was obtained by using the principle of time-temperature superposition,and was simulated by the modified Herschel-Bulkley model. The results showed that the nonlinear rheological behavior of different EPDM compounds could be well described by the modified Herschel-Bulkley model,and a series of model parameters were obtained.

关 键 词：EPDM 炭黑 碳酸钙 Herschel-Bulkley模型 流变性能 

分 类 号：TQ330.1[化学工程—橡胶工业]