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.
作者
陈林飞
路丹
卢光明
倪金平
汤兆宾
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)
出处
《塑料工业》
CAS
CSCD
北大核心
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)。
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
Solution Polymerization
Copolymerized Nylon
Glass Transition Temperature
Thermal Decomposition Temperature
Dynamic Thermomechanical Analysis
作者简介
陈林飞,男,1987年生,助理工程师,主要从事特种聚酰胺材料聚合及改性研究;通信联系人:倪金平,男,1988年生,博士,主要从事聚酰胺材料的聚合及改性研究。njpandcl@sina.com;通信联系人:汤兆宾,男,1980年生,博士,主要从事生物基材料聚合及改性研究。tangzhb04@nimte.ac.cn。
