摘要
研究了ＰＥＳ与热致液晶聚合物（ＤＣＰ）ＨＢＡ／ＰＥＴ（６０／４０）共混物的转矩流变和剪切流变性能。加入２％～５％ＨＢＡ／ＰＥＴ（６０／４０）可使ＰＥＳ熔体在低剪切速率下的表观粘度下降２～４倍。共混物的粘流活化能也低于纯ＰＥＳ的活化能。加入少量ＬＣＰ（５％以下）可望大大改善ＰＥＳ的加工性能。
Rheological studies of blends of polyethersulphone (PES) with a liquid crystalline polyrmer (LCP) HBA/PET(60/40)were carried out using a capillary rheometer and a HAAKE rheometer.In the shear rate range studied both the LCP and the PES and their blends exhibited non-Newtonian behavior. An approximately twofold-fourfold drop in apparrent viscosity at low shear rates for the addition of only 2%￣5% of LCP was found.The flow activation energies of the blends studied were also lower than that of PES.The processing temperature of PES may decrease 20￣30℃ by blending with a few percent of the LCP.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1994年第6期104-107,共4页
Polymer Materials Science & Engineering
