聚酰胺6热塑性弹性体的合成与表征  

Synthesis and Characterization of Thermoplastic Polyamide 6 Elastomer

作　　者：陶磊 常程 赵柯嘉 徐小明 TAO Lei;CHANG Cheng;ZHAO Kejia;XU Xiaoming(Changzhou Vocational Institute of Textile and Garment,Changzhou 213164,China;School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China;China Resources Chemical Innovative Materials Co.,Ltd.,Changzhou 213033,China)

机构地区：[1]常州纺织服装职业技术学院,江苏常州213164 [2]东南大学化学化工学院,江苏南京211189 [3]华润化学材料科技股份有限公司,江苏常州213033

出　　处：《塑料工业》2024年第2期145-152,共8页China Plastics Industry

基　　金：江苏省高等学校基础科学(自然科学)研究面上项目资助(No.21KJB540001);2022年度常州市青年科技人才托举工程资助培养项目;常州纺织服装职业技术学院2021年度校学术科研基金(应用技术类)项目(CFK202101)。

摘　　要：热塑性聚酰胺弹性体(TPAE)分子结构设计的优化研究与国产化开发,已成为当前的探索热点。区别于二元酸制备法中的酯化缩聚反应机理,基于酰胺化缩聚反应机理,将双端羧基封端的聚酰胺6(PA6)与聚醚胺(PEA)经一步熔融缩聚反应制备PA6型热塑性弹性体。通过傅里叶变换红外光谱与核磁共振氢谱表征其分子结构;采用差式扫描量热分析、热失重分析、力学性能测试、密度测试、邵氏硬度测试方法分别对其热性能、热稳定性、力学性能、密度、邵氏A硬度特性进行表征。结果表明,制备的PA6弹性体分子结构与预设结构一致,熔融温度高于210℃,热稳定性能与力学性能优异,断裂伸长率大于500%,密度小于1.1 g/cm 3,邵氏A硬度范围宽(85~95),是一种性能优异的热塑性弹性体材料。The optimization of the molecular structure design and the domestic development of thermoplastic polyamide elastomer(TPAE)had become the current hot spot of exploration.Thermoplastic polyamide 6(PA6)elastomer were prepared by one-step melt poly-condensation reaction of double carboxyl terminated PA6 and polyether amine(PEA),based on the amidation poly-condensation reaction mechanism which is different from the esterification poly-condensation reaction mechanism in the preparation method of binary acids.The molecular structure of thermoplastic PA6 elastomer was characterized by Fourier transform infrared and proton nuclear magnetic resonance.The thermal behaviors,thermal stability,mechanical properties,density,and shore A hardness were characterized by differential scanning calorimetry analysis,thermogravimetric analysis,mechanical properties test,density test,and shore A hardness test.It is found that the molecular structure of PA6 elastomer is accordance with the anticipated structure,the melting temperature is higher than 210℃,the thermal stability and mechanical properties are excellent,the breaking elongation is more than 500%,the density is less than 1.1 g/cm 3,and the shore A hardness range is wide(85~95).It has been a thermoplastic elastomer material with excellent performance.

关 键 词：聚酰胺6 热塑性弹性体 合成 表征 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]