叶骐瑜¹,马小珺¹,姚臻^1,2,胡激江¹

• 1:化学工程联合国家重点实验室(浙江大学)，浙江大学 化学工程与生物工程学院，浙江 杭州 310058
• 2:浙江大学 聚合与聚合物工程研究所，浙江 杭州 310058

摘要(Abstract)：

针对聚对苯二甲酸乙二醇酯(PET)和聚酰胺6(PA6)共混后相容性差的问题，提出了以苯磺酸盐改性PET(CDP)和PA6为原料，在双螺杆挤出机中制备CDP/PA6共混物。结果表明，所得到的共混物分散相尺寸小、形状不规则，两相相容性远好于PET/PA6共混物。相容性改善机理为：CDP链中引入的苯磺酸基团是酯-酰胺交换反应的有效催化剂，其与PA6的酰胺键一步反应，快速生成聚酯/聚酰胺接枝共聚物，在短短几分钟内大大提高了聚酯与聚酰胺的相容性。当CDP/PA6共混物中CDP与PA6的质量分数相近时，聚酯与聚酰胺互相渗透程度大大提高，并形成双连续相。

关键词(KeyWords)： 反应挤出;CDP/PA6共混物;苯磺酸盐改性PET;相容性改善机理

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 叶骐瑜¹,马小珺¹,姚臻^1,2,胡激江¹

DOI: 10.3969/j.issn.1003-9015.2023.02.010

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