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在不同洗和加工过程中回收HDPE的气味特性

Juan López Martínez¹, Jesús Manuel Rodríguez Rego², Laura Mendoza Cerezo³

¹Department of Mechanical and Materials Engineering, Polytechnic University of Valencia, Paseo Viaducto 1, 03801, Alcoy, Alicante, Spain.

Environmental science and pollution research international

|September 23, 2024

概括

回收高密度聚乙烯 (HDPE) 塑料废弃物可能是因为不愉快的气味而具有挑战性. 这项研究表明,洗和加工HDPE有效减少气味,使其适合在包装行业重复使用.

科学领域:

聚合物科学聚合物科学
环境科学环境科学
材料工程材料工程材料工程

背景情况:

越来越多的聚合物废物构成了环境污染的重大挑战.
回收和重复使用塑料材料尽量减少环境影响和能源消耗.
回收塑料,特别是高密度聚乙烯 (HDPE) 中的不愉快气味阻碍了它们在生产中的接受.

研究的目的:

从废弃高密度聚乙烯 (HDPE) 中消除恶臭,以提高包装行业的再利用率.
调查洗和加工技术在减少气味方面的有效性.
为了使新产品能够将更多的回收材料纳入新产品中.

主要方法:

废HDPE来自一家回收公司.
材料经过洗,表征和加工 (挤出和注射).
用气体染色学和每个阶段的嗅觉面板进行了气味分析.

主要成果:

洗过程显著减少了HDPE的气味.
挤出和注射加工进一步减少了气味.
通过挤出/注射后的酸盐处理消除了导致气味的特定成分.

结论:

洗和先进的加工技术是有效的减轻回收HDPE的气味问题.
这些方法促进了回收HDPE在包装行业的更广泛应用.
这些发现支持利用回收材料的增加,为循环经济做出贡献.

关键词:

标志性描述标志性描述高密度聚乙烯的高密度聚乙烯.闻到的味道是有味道的.回收回收是回收的过程.

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