PTT/SEBS复合材料的制备及其流变性能  

Preparation and rheological properties of PTT/SEBS composites

作　　者：孔德忠[1] Kong Dezhong(Wuxi Vocational Institute of Arts&Technology,Yixing 214206,China)

机构地区：[1]无锡工艺职业技术学院,江苏宜兴214206

出　　处：《合成树脂及塑料》2023年第3期32-35,共4页China Synthetic Resin and Plastics

基　　金：江苏省第六期“333高层次人才培养工程”资助;江苏省高等学校自然科学研究项目资助项目(19KJD430006)。

摘　　要：采用熔融共混法,将聚对苯二甲酸丙二酯(PTT)纤维与氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物(SEBS)弹性体共混制备PTT/SEBS复合材料,考察了SEBS弹性体含量对复合材料力学性能的影响,以及剪切速率、温度对复合材料流变性能的影响,并分析了复合材料的亚微相态。结果表明:加入SEBS弹性体使PTT/SEBS复合材料的拉伸强度提高,断裂拉伸应变降低;随着SEBS弹性体含量的增加,PTT/SEBS复合材料的流动阻力增大,流变性能降低。Poly(trimethylene terephthalate)(PTT)fiber and styrene-butadiene-styrene block copolymer(SEBS)were blended to prepare PTT/SEBS composites via melt blending.The effect of the content of SEBS on mechanical properties of the composites,as well as shear rate and temperature on rheological properties of the composites were investigated experimentally.The morphology of the composites was analyzed.The results show that the addition of SEBS elastomers to PTT/SEBS improves the tensile strength and reduces the elongation at break of the composites.The rheological properties of PTT/SEBS blends drop and the flow resistance increases with the increase of SEBS content.

关 键 词：聚对苯二甲酸丙二酯纤维 氢化苯乙烯-丁二烯-苯乙烯嵌段共聚物 熔融共混 流变性能 

分 类 号：TQ342.29[化学工程—化纤工业]