摘要
采用溶液共混制备了不同比例的热致液晶共聚酯(LCP)/含酚酞侧基聚芳醚砜(PES—C)共混物。利用锥板流变仪对共混体系的熔体流变性能进行了初步研究,测定了熔体粘度—温度、粘度—剪切速率的关系,结果表明该液晶聚合物能明显降低聚芳醚砜的熔体粘度。
Different content, blends of phenolphthalein polyarylether sulfone (PES-C) with thermotropic liquid crystalline copolyester (LCP) were prepared by cop-recipitation. The rheological behavior of the blends were studied by cone plate rheometer. The relationship of viscosity-shear rate, viscosity-temperature were discussed. The results showed that melting viscosities of the blends ranged between those of pure LCP and PES-C. The flow of the blends showed Newton-fluid properties at low shear rate, whereas non- Newton-fluid properties at high shear rate.
出处
《功能高分子学报》
CAS
CSCD
1996年第4期507-510,共4页
Journal of Functional Polymers
基金
国家自然科学基金资助项目(基金号:59083429)
关键词
热致液晶
共聚酯
流变行为
PES-C
Thermotropic liquid crystalline copolyester (LCP), Blends, Phenolphth-alein polyarylether sulfone (PES-C), Rheological behavior
