半芳香共聚透明尼龙5T/5I的合成及其性能的研究  

Study on Preparation and Properties of Semi-aromatic Copolymer Nylon 5T/5I

作　　者：陈林飞 路丹 卢光明 倪金平 汤兆宾[2] CHEN Lin-fei;LU Dan;LU Guang-ming;NI Jin-ping;TANG Zhao-bin(ZheJiang Shiny New Materials Co.,Ltd.,Wenzhou 325000,China;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China)

机构地区：[1]浙江新力新材料股份有限公司,浙江温州325000 [2]中国科学院宁波材料技术与工程研究所,浙江宁波315201

出　　处：《塑料工业》2020年第12期160-164,共5页China Plastics Industry

基　　金：浙江省重点研发计划(2020C01140)。

摘　　要：以1,5-戊二胺、对苯二甲酸(PTA)、间苯二甲酸(PIA)为原料,采用溶液聚合法合成了透明半芳香共聚尼龙PA5T/5I。经红外光谱(FT-IR)、核磁共振氢谱(NMR)、差示扫描量热法(DSC)、热失重(TG)、动态热机械分析(DMA)、力学性能等表征方法对PA5T/5I进行了全面的剖析。结果表明,成功制备了新型共聚尼龙5T/5I,其玻璃化转变温度为133℃,最大热分解温度高达460℃,较PA6T/6I,拉伸强度、弯曲强度、弯曲模量和热变形温度分别提高了4%、10%、4%和10%,具有优异的热性能和力学性能。A semi-aromatic polyamide 5T/5I was prepared by solution polymerization using 1,5-pentanediamine,terephthalic acid and isophthalic acid as raw materials.The copolymerized nylon 5T/5I was characterized by Fourier transform infrared spectrum(FTIR),nuclear magnetic resonance(NMR),differential scanning calorimetry(DSC),thermogravimetry(TG),dynamic thermomechanical analysis(DMA)and mechanical properties.The results show that novel copolymer nylon 5T/5I is successfully prepared and has excellent thermal and mechanical properties.The glass transition temperature is 133℃,and the maximum thermal decomposition temperature is up to 460℃.Comparing with PA6T/6I,the tensile strength,bending strength,bending modulus and thermal deformation temperature have increased 4%,10%,4%and 10%,respectively.

关 键 词：溶液聚合 共聚尼龙 玻璃化转变温度 热分解温度 动态热机械分析法 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]