废聚苯乙烯泡沫塑料综合利用研究进展

聚苯乙烯泡沫具有质量轻、表观密度低、不易分解、廉价等优点,是当下应用最广泛的塑料制品之一。同时其废弃物的丢弃量也越来越大,这种聚苯乙烯泡沫废弃物在大自然中难以降解,燃烧还会产生有毒物质,导致回收处理难度较大,给环境带来了很多问题。如果将废聚苯乙烯泡沫塑料（WFPS）进行回收或者资源化利用,不仅能改善环境问题,而且符合“低碳”理念。对WFPS的回收包括溶剂回收、热解回收等方法进行了详细地介绍,重点综述了WFPS在能源领域、建筑领域和环境保护领域的资源化再利用的研究现状。结合中国WFPS的回收现状对其今后回收与再利用技术研究前景作出了展望：1）兼顾经济与环保的规模化溶剂回收技术的开发;2）催化裂解回收单体的高效催化剂的研发;3）聚焦高附加值的WFPS资源化利用技术研究。

Research progress on comprehensive utilization of waste foamed polystyrene plastics

Polystyrene foam is one of the most widely used plastic products because of its light weight,low apparent density,uneasy decomposition,low cost and so on.At the same time,the amount of waste is also increasing,and this kind of polymer is difficult to degrade in nature and its combustion will produce toxic substances.The different recovery of the waste brings a lot of problems to the environment.Recycling or resource utilization of WFPS can not only improve the environment,but also conform to the concept of "low carbon".The recovery methods of WFPS,including solvent recovery and pyrolysis recovery,were introduced in detail.The recycling and reuse of WFPS in the fields of energy,construction and environmental protection were summarized.It is pointed out that the WFPS recovery technology with high-efficiency,environmental protection and low-cost needs to be further developed.Combined with the recycling status of WFPS in China,the prospects of recycling and reuse technology of WFPS in the future are proposed as following: 1) Development of large-scale solvent recovery technology that takes into account both economy and environmental protection;2) Research and development of high-efficiency catalysts for catalytic cracking and recovery of monomers;3) Focusing on high value-added WFPS resource utilization technology research.