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| 含热致液晶性共聚酯的聚砜共混物 | |
| 引用本文： | 何嘉松,张洪志,袁强,谢萍,张国耀,许向青. 含热致液晶性共聚酯的聚砜共混物[J]. 高分子学报, 1994, 0(3): 342-347 |
| 作者姓名： | 何嘉松 张洪志 袁强 谢萍 张国耀 许向青 |
| 作者单位： | 中国科学院化学研究所工程塑料国家重点实验室; 纺织工业部纺织科学研究院测试中心; 化学工业部北京化工研究院 |
| 摘 要： | 将一种含萘环的热致液晶性共聚酯与聚砜树脂熔融共混并挤塑成条。毛细管流变性测试表明，这一共聚酯降低了共混物的表观粘度，甚至低于其本身的粘度。共混物受剪切作用形成了各向异性的微纤增强结构，并具有皮芯结构，在液晶聚俣物含量低到２％与０．５％的样条中仍有共聚酯微纤形成。共聚酯微纤提高了聚砜的力学性能，含２０％共聚酯共混物挤塑条的位伸模量为聚砜树脂的二倍半。 |
| 关 键 词： | 热致液晶 共聚酯 聚砜 流变性 |
| 收稿时间： | 1992-03-23 |
BLENDS OF POLYSULFONE WITH A THERMOTROPIC LIQUID CRYSTALLINE POLYMER |
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| HE Jia-song,ZHANG Hong-zhi,YUAN Qiang,XJE Ping,ZHANG Guo-yao. BLENDS OF POLYSULFONE WITH A THERMOTROPIC LIQUID CRYSTALLINE POLYMER[J]. Acta Polymerica Sinica, 1994, 0(3): 342-347 | |
| Authors: | HE Jia-song ZHANG Hong-zhi YUAN Qiang XJE Ping ZHANG Guo-yao |
| Affiliation: | State Key Laboratory of Engineering Plastics; Institute of Chemistry; Academia Sinica; Beijing 100080 ; Testing Centre of Textile Academy; Ministry of Textile Industry; Beijing; 100025; Beijing Research Institute of Chemical Industry,Mini |
| Abstract: | A thermotropic liquid crystalline aromatic copolyester containing naphthalene rings (LCP) was blended with polysulfone and extruded. Rheological measurement shows that this LCP decreases blend viscosity to such an extent that the viscosity of blends even lower than that of LCP itself . In blend extrudates, an anisotropic and skin-core structure reinforced by LCP fibrils has been formed by shear flow of extrusion. Copolyester fibrils have been generated in extrudates even at LCP concentrations as low as 2 or 0.5%. LCP fibrils has increased tensile properties if oiktsykfibe, Tebsuke nidykys if extryded strabds cibtaububg 20% LCP is 2.5 times of polysulfone. |
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