Research progress in recycling technology of waste nylon 6
The research on the physical and chemical recycling technology of nylon 6 at home and abroad in recent years was summarized.The pretreatment process of waste nylon 6 was introduced,followed by four recycling technologies for waste nylon 6,including landfill treatment,energy recovery,physical recycling,and chemical recycling.The advantages and disadvantages of hydrolysis,ammonolysis,alcoholysis and ionic liquid methods of chemical recycling technology were introduced,and the practical application of waste nylon 6 recycling technology in industry was discussed.At present,the reaction conditions required for chemi-cal recycling technology are relatively harsh,and the requirements for reaction equipment are higher.In the future,mild,low energy consumption and green are the main directions for the development of chemical recycling technology.
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