Progress of reaction extrusion in polymerisation and modification of Nylon 6
The research progress in polymerization and modification of nylon 6(PA6)based on the technology of reaction extrusion was summarized.Firstly,the mechanism,characteristics,research progress,properties and advantages of PA6 polymeriza-tion in reaction extrusion were described,and then the two types of PA6 monomer polymerization process modification and modifi-cation by direct use of PA6 matrix and modification during the polymerization process of PA6 monomer were described in detail.The research progress in the modification of PA6 copolymerization,chain expansion and branching,and reaction blending by using reaction extrusion was outlined.It was found that the key to the performance enhancement of PA6 composites lies in the effective handling of the compatibility between different components.After a comprehensive review of the current application areas of reac-tive extrusion PA6 composites,it was found that simply improving the mechanical properties of PA6 can no longer satisfy the growing demand for its use.Therefore,the future research direction should focus on exploring the reaction mechanism during the reaction extrusion process,developing a variety of categories of PA6 composite products,and thoroughly investigating the perfor-mance of PA6's properties in the reaction extrusion environment.
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