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Dual effects of compatibilizer on the formation of oriented ribbon-like dispersed phase domains in polystyrene/polyamide 6 blends
Chemical Engineering Science ( IF 4.1 ) Pub Date : 2018-03-01 , DOI: 10.1016/j.ces.2017.12.008
Cai-Liang Zhang , Cong Li , Long Wang , Lian-Fang Feng , Tong Lin

Abstract Polymer blends with oriented ribbon-like dispersed phase were prepared via tape extrusion. Two specially designed compatibilizers, one being non-reactive and another reactive, were used to examine their influence on the formation of oriented ribbon-like dispersed phase in polystyrene (PS)/polyamide 6 (PA6) blend. Results show that both compatibilizers can decrease interfacial tension and produce vinculum effect to strengthen the deformation of dispersed phase. Moreover, the stretching force of tape extrusion pushes the compatibilizer molecules towards the tips of dispersed phase causing a non-uniform distribution along the surface of dispersed phase. At a low loading concentration of compatibilizer, the deformed dispersed phase particles can connect each other from their middle part and merge into long and even endless ribbons. However, when the loading of compatibilizer exceeds a certain level, the formation of ribbon-like dispersed phase will be impeded because all surfaces of dispersed phase are completely covered by the compatibilizer so that the coalescence of dispersed phase cannot occur.

中文翻译:

增容剂对聚苯乙烯/聚酰胺 6 共混物中定向带状分散相域形成的双重影响

摘要 通过胶带挤出制备了具有取向带状分散相的聚合物共混物。两种专门设计的增容剂,一种是非反应性的,另一种是反应性的,用于检查它们对聚苯乙烯 (PS)/聚酰胺 6 (PA6) 共混物中定向带状分散相形成的影响。结果表明,两种增容剂均能降低界面张力并产生粘胶效应,加强分散相的变形。此外,胶带挤出的拉伸力将增容剂分子推向分散相的尖端,导致沿分散相表面的分布不均匀。在相容剂的低负载浓度下,变形的分散相颗粒可以从中间部分相互连接并合并成长甚至无端的带状。然而,
更新日期:2018-03-01
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