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橡塑技术与装备（塑料） CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT (PLASTICS)

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Research progress of identification and separation technology of
waste plastics

1
1
Liu Junfeng , Xu Zhongbin , Cao Jiapei 2
(1. College of Energy Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China;
2. Hangzhou Hi-tech Fine Chemical Co., Ltd., Hangzhou 311113, Zhejiang, China)

Abstract: Recycling of plastic products is very important for the construction of a resource-saving
society. The separation of waste plastics is the key link of high-quality recycling of plastic products. This paper
introduces the research progress of the identification and separation technology of waste plastics, such as
density separation, flotation, electromagnetic separation and photoelectric separation, analyzes the existing
problems in the identification and separation of waste plastics, and looks forward to the future research
direction and industrial application.
Key words: waste plastics; recycling; separation; identification
（R-03)

·18· 第 45 卷 第 22 期