用于扩链聚酯长链支化结构表征的流变学研究与应用进展  

Research and Application Progress in Rheological Characterization for Long Chain Branched Structure of Extended Polyester

作　　者：范瑞玲 宋明根 姬洪 孙娜 张玥[1] 张玉梅[1] FAN Rui-ling;SONG Ming-gen;JI Hong;SUN Na;ZHANG Yue;ZHANG Yu-mei(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;Zhejiang Unifull Industrial Fiber Co.,Ltd.,Huzhou 313017,China)

机构地区：[1]纤维材料改性国家重点实验室东华大学材料科学与工程学院,上海201620 [2]浙江尤夫高新纤维股份有限公司,浙江湖州313017

出　　处：《塑料科技》2023年第7期110-115,共6页Plastics Science and Technology

摘　　要：文章综述了扩链剂种类和扩链工艺对聚酯熔体流变性能的影响,总结了复数黏度-角频率曲线、黏度分子量分布曲线、Cole-Cole曲线、储能模量-角频率曲线、损耗角-复数模量曲线、加权松弛时间谱和单轴瞬态拉伸流变对扩链聚酯的支化结构、支链含量、支链长度的表征方法。指出各流变学表征方法的差异和适用范围,对聚酯的支化扩链反应机理及其长链支化结构研究具有指导意义。The effects of chain extender types and chain extension process on the rheological properties of polyester melt were reviewed.The characterization methods of complex viscosity-angle frequency curve,viscosity molecular weight distribution curve,Cole-Cole curve,storage modulus-angle frequency curve,loss angle-complex modulus curve,weighted relaxation time spectrum and uniaxial transient extensional rheology for branched structure,branched content and branched length of chain-extended polyester were summarized.The differences and application scope of each rheological characterization method are pointed out,which is of guiding significance for the study of branched chain extension reaction mechanism and long chain branched structure of polyester.

关 键 词：扩链剂 聚酯 流变性能 长链支化结构 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]