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废弃面罩的回收利用,用于修改和使用SBS修改的青

Xinyu Li¹, Fuhu Han¹, Shencheng Fan¹

¹College of Chemistry and Chemical Engineering, Guangxi University, Nanning, 530004, China.

Environmental science and pollution research international

|October 25, 2023

概括

用PDA-PEI涂层处理的回收面膜增强了 styrene-butadiene-styrene (SBS) 改性青的作用. 这种可持续的方法改善了道路建设材料,并支持了环境保护.

科学领域:

材料科学材料科学材料科学
环境工程环境工程
土木工程土木工程是指土木工程.

背景情况:

由于COVID-19的流行,丢弃的面具废物大幅增加.
可持续发展需要创新的回收方法来回收一次性材料,如面膜.
改造对于改善道路路面性能和寿命至关重要.

研究的目的:

开发一种回收废弃面膜成 styrene-butadiene-styrene (SBS) 改性青的方法.
研究聚多巴胺聚乙烯胺 (PDA-PEI) 涂层在提高回收面罩纤维 (DFMF) 的性能方面的有效性.
评估涂层DFMF对SBS改性的机械和质性质的影响.

主要方法:

应用了物理化学处理,将废弃的面膜回收成纤维.
使用聚多巴胺聚乙烯胺 (PDA-PEI) 涂层处理丢弃的面膜纤维 (DFMF).
修改过的纤维被纳入了 styrene-butadiene-styrene (SBS) 青中,并测试了机械性能.

主要成果:

PDA-PEI涂层提高了DFMF的表面完整性,增强了它们与青的结合.
在46°C时,2%的装饰面膜纤维 (E-FMF) /SBS修饰在复合模量 (G*),弹性模量 (G') 和损耗模量 (G′′) 中显著改善,而2%的DFMF/SBS修饰则显著改善.
爬行回收 (R) 增加了高达32%,平均爬行符合性 (Jnr) 减少了高达64%,表明变形和剪切阻力增强.

结论:

涂层废弃面膜纤维 (DFMF) 有效地提高了青的机械性能,变形耐力和剪切耐力.
这种回收方法为管理面罩废物提供了一个可持续的解决方案,同时提高了道路建筑材料的价值.
该研究扩大了一次性口罩的应用范围,为环境保护和基础设施发展做出了贡献.

关键词:

丢弃的面具是废弃的面具改性青是一种改性青.回收回收是回收的过程.可持续性涂层是一种可持续性涂层.

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