聚氨酯
废物管理
原材料
生物修复
环境科学
环境友好型
环境污染
废物回收
材料科学
降级(电信)
化学
工程类
有机化学
污染
环境保护
复合材料
生物
电信
生态学
作者
Aleksandra Kemona,Małgorzata Piotrowska
出处
期刊:Polymers
[MDPI AG]
日期:2020-08-05
卷期号:12 (8): 1752-1752
被引量:105
标识
DOI:10.3390/polym12081752
摘要
Growing water and land pollution, the possibility of exhaustion of raw materials and resistance of plastics to physical and chemical factors results in increasing importance of synthetic polymers waste recycling, recovery and environmentally friendly ways of disposal. Polyurethanes (PU) are a family of versatile synthetic polymers with highly diverse applications. They are class of polymers derived from the condensation of polyisocyanates and polyalcohols. This paper reports the latest developments in the field of polyurethane disposal, recycling and recovery. Various methods tested and applied in recent years have proven that the processing of PU waste can be economically and ecologically beneficial. At the moment mechanical recycling and glycolysis are the most important ones. Polyurethanes’ biological degradation is highly promising for both post-consumer and postproduction waste. It can also be applied in bioremediation of water and soil contaminated with polyurethanes. Another possibility for biological methods is the synthesis of PU materials sensitive to biological degradation. In conclusion, a high diversity of polyurethane waste types and derivation results in demand for a wide range of methods of processing. Furthermore, already existing ones appear to be enough to state that the elimination of not reprocessed polyurethane waste in the future is possible.
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