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首页> 外文期刊>Journal of Applied Polymer Science >Influence of the Type of Polyhydroxyether on Mechanical Properties of PET/TLCP/Polyhydroxyether Blends
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Influence of the Type of Polyhydroxyether on Mechanical Properties of PET/TLCP/Polyhydroxyether Blends

机译：聚羟基醚类型对PET / TLCP /聚羟基醚共混物力学性能的影响

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In a more elaborate article, it was described that blends of poly(ethylene terephthalate)(PET), a liquid crystalline copolyester, and small amounts of a liquid crystalline polyhydroxyether showed an increase in tensile modulus and strength compared to the blends without polydroxyether. The results were obtained using a polyhydroxyether composed of 75 mol % biphenyl and 25 mol % phenyl units. In this article, the use of two other types of polyhydroxyether is described, one based on the #alpha#-methylstilbene unit and the othewr based on bisphenol A. Addition of either of these polyhydroxyethers to the PET/thermotropic liquid crystalline polymer (TLCP) blends increased the tensile modulus and strength of extruded fibers in the a similar way as upon addition of the liquid crystalline polyhydroxyether. Improvement of hte viscosity ratio and thereby improvement of the fibril formation, by reactions of the functional hydroxyl side groups in the polyhydroxyethers, appears to be the most important factor for the improvement of hte mechanical properties.
机译：在更详尽的文章中，描述了与不具有聚氧醚的共混物相比，聚对苯二甲酸乙二酯（PET），液晶共聚酯和少量液晶多羟基醚的共混物显示出拉伸模量和强度的增加。使用由75摩尔％联苯和25摩尔％苯基单元组成的聚羟基醚获得结果。在本文中，描述了使用其他两种类型的聚羟基醚，一种基于＃alpha＃-甲基二苯乙烯单元，另一种基于双酚A。将这些多羟基醚中的任何一种添加到PET /热致液晶聚合物（TLCP）中共混物以与添加液晶多羟基醚类似的方式增加了挤出纤维的拉伸模量和强度。通过多羟基醚中的官能羟基侧基的反应，提高粘度比，从而改善原纤维的形成，似乎是提高机械性能的最重要因素。

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