The core-shell polymer particles are composite particles having a double layer or a multilayer structure composed of components having different chemical compositions or different aggregated forms. In 1957, Rohm & Haas of the United States first developed a core-shell polymer of the trade name K120. In the 1960s and 1970s, companies such as Japan and Germany also developed similar products. In the early 1980s, Japanese scholar Okubo proposed a new concept of "particle design."
So far, the core-shell structure of polymers has been a hot topic of research, and has made great progress in its synthesis, structure, morphology, properties, applications and many other aspects.
The research team selected maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer (ABS-g-MAH), maleic anhydride grafted ethylene-octene copolymer (POE-g-MAH) and maleic anhydride. Copolymer (SMA) three compatibilizers were studied for their effect on the compatibilization of PA6/ABS alloy and the amount of compatibilizer on the toughness of PA6/ABS alloy. Both of them can improve the interface energy of PA6 and ABS, and improve the toughness of PA6/ABS.
Among them, ABS-g-MAH has the best compatibilizing effect on PA6/ABS alloy. In addition, with the increase of the amount of ABS-g-MAH, the notched impact strength first increased and then decreased. When the mass fraction was 20%, the notched impact strength of PA6/ABS alloy increased the most, without adding ABS-g-MAH. 10 times that of PA6/ABS alloy.