Microstructure and compatibility of PA6/ABS blends

Aiming at improving microstructure and compatibility of polyamide 6/acrylonitrile-butadiene-styrene copolymer (PA6/ABS) blend materials, and enhancing their properties, this paper investigates some influence factors on the microstructure and compatibility of the PA6/ABS blend materials, including crystallization behavior of PA6, ABS "core-shell" structure, blend composition and process. Especially, this paper reports the effect and mechanism of epoxy and anhydride types of reactive compatibilizers on the microstructure and properties of PA6/ABS blend materials. Additionally, this paper summarizes theoretical research and engineering application of PA6/ABS blends. The results show that with the increase of ABS content in PA6/ABS blend materials, the morphology of PA6 changes from spherical crystal to sheet crystal, and ABS particles with "core-shell" structure can effectively toughen PA6, The grafting chemical reaction, which occurs between reactive compatibilizers and PA6/ABS blend materials, reduces the interfacial tension and makes uniform distribution of dispersed phase particles.