协同修改回收PET使用Halloysite纳米管和反应性聚合物提高性和可加工性
Zhicheng Hu1, Zhiying Wu1, Xiaoling Wu1
1School of Life Sciences, Zhuhai College of Science and Technology, Zhuhai 519041, China.
使用化纳米管 (HNT) 和乙烯基甲基烯酸-甘油甲基烯酸 (E-MA-GMA) 改造的再生PET显示出更好的性和可加工性. 这种协同方法增强了回收PET的利用率.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 聚乙烯二甲 (PET) 广泛用于包装,但产生大量的废物.
- 回收PET通常具有较差的性和可加工性,限制了其应用.
- 开发方法来提高回收PET的性能对于可持续性至关重要.
研究的目的:
- 为了研究化纳米管 (HNT) 和乙烯基甲基酸乙烯基甲基酸 (E-MA-GMA) 对再生PET的协同修饰效应.
- 为了提高回收PET的性和可加工性,用于更广泛的应用.
主要方法:
- 回收PET与HNT和E-MA-GMA的融化混合.
- 差分扫描热量计 (DSC) 用于分析热性能.
- 风病学测量以评估分子链放松.
- 在高温注塑成型和回火后进行冲击强度测试.
主要成果:
- 当E-MA-GMA被共同添加时,HNT在回收PET上表现出减少的核化作用.
- 结合的E-MA-GMA和HNTs显著限制了由于界面反应而导致的回收PET分子链放松.
- 协同效应降低了PET结晶的增长速度,从而降低了结晶度.
- 与回收PET/E-MA-GMA-GMA相比,回收PET/E-MA-GMA/HNT复合材料的冲击强度显著提高 (2.28倍和2.14倍).
结论:
- E-MA-GMA和HNT的协同作用组合有效地增强了回收PET的特性.
- 这种修改策略提高了抗冲击性和可加工性,使回收PET的使用范围更广.
- 该方法支持在苛刻的应用中用再生PET替代原始塑料.
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