可回收和生物降解的纸张涂层与功能化的PLA和PBAT
Syeda Shamila Hamdani1, Hazem M Elkholy1, Manal O Alghaysh1
1School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, Michigan 48824-1223, United States.
ACS omega
|March 31, 2025
概括
新的功能化聚涂层提供可回收和可堆肥纸张解决方案. 这项创新解决了包装废物问题,通过为循环经济创造环保,无PFAS涂层纸.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续的包装 包装是可持续的
背景情况:
- 传统的聚涂层纸被广泛用于包装,但由于其不可回收的性质,它给环境带来了重大挑战.
- 非生物降解材料在包装中的持久性有助于垃圾填埋垃圾和微塑料污染.
研究的目的:
- 开发新型,可回收利用和可工业化堆肥的纸张涂层材料.
- 为包装应用创造一种可持续的替代传统非可回收聚涂层的可持续替代品.
- 确保开发的涂层中没有有害物质,如PFAS和持久性微塑料.
主要方法:
- 碳素酸功能化聚乳酸 (CPLA) 和聚乙烯基酸盐-联合甲酸盐 (CPBAT) 的合成.
- 将CPLA或CPLA/CPBAT混合物作为乳化涂料应用于纸张上.
- 涂层纸的全面测试屏障特性,排斥性,密封性,机械强度,可回复性,可回收性和可堆肥性.
主要成果:
- 功能化的聚涂层纸张表现出了出色的水和油排斥性,气体和水分屏障性能以及密封能力.
- 经过认证的测试验证了涂层纸的可再生性和可回收性.
- 证实了涂层纸的工业堆肥性,并发现它们没有PFAS和持久性微塑料.
结论:
- 功能化的聚混合物为纸张涂层提供了可行和可持续的解决方案.
- 开发的涂层纸符合包装的性能要求,同时符合循环经济原则.
- 这项创新为传统涂层纸提供了一个对环境负责任的替代品,减少塑料废物并促进生物降解性.
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