摘要
采用二甲基乙酰胺(DMAc)为溶剂配制不同共混比的聚偏氟乙烯(PVDF)和聚醚酰亚胺(PEI)共混溶液,用锥板式黏度计研究了PVDF/PEI共混溶液的流变性能。结果表明:PVDF/PEI共混溶液表观黏度与剪切速率呈线性相关;当PVDF/PEI质量比为9/1时,共混溶液的零切黏度明显降低,非牛顿指数和黏流活化能出现极值;随着PEI含量的增加,黏流活化能急剧增大。
The blend solution of polyvinylidene fluoride （PVDF） and polyetherimide （PEI） was prepared with different mass ratio using dimethyl acetamide （DMAc） as a solvent. The theological behavior of PVDF/PEI blend solution was studied with a cone and plate viscometer. The results showed that the apparent viscosity of PVDF/PEI blend solution had a linear correlation with shear rate; and the zero shear viscosity of the blend solution profoundly reduced and the non-Newtonian index and viscous flow activation energy appeared extreme values when the PVDF/PEI mass ratio was 9/1 ; and the viscous flow activation energy sharply increased with the increase of PEI content.
出处
《合成纤维工业》
CAS
CSCD
北大核心
2012年第4期1-3,共3页
China Synthetic Fiber Industry
基金
上海市自然科学基金(11ZR1400500)
2012年教育部留学回国人员科研启动基金(12W10623)
高等学校学科创新引智计划(B0704)
东华大学中央高校基本科研业务费专项资金(12D10609)项目
关键词
聚偏氟乙烯
聚醚酰亚胺
共混溶液
流变性能
polyvinylidene fluoride
polyetherimide
blend solution
rheological behavior
