Open AccessPolyamide 6 modified polypropylene with remarkably enhanced mechanical performance, thermal properties, and foaming ability via pressure‐induced‐flow processing approach
Author(s) -
Fu Dajiong,
Chen Feng,
Peng Xiangfang,
Kuang Tairong
Publication year - 2018
Publication title -
advances in polymer technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 44
eISSN - 1098-2329
pISSN - 0730-6679
DOI - 10.1002/adv.21945
Subject(s) - materials science , polypropylene , microstructure , composite material , melt flow index , thermal stability , polyamide , expansion ratio , polymer , polymer blend , chemical engineering , copolymer , engineering
Pressure‐induced‐flow ( PIF ) processing has been considered as an efficient approach to prepare high‐performance polymer materials. In this study, the effects of PIF processing on various properties of PP / PA 6 blend, including the microstructure, thermal, and mechanical properties, as well as foaming behavior, were investigated. The results showed that PIF processing had a significant effect on the microstructure of PP / PA 6 blend. Meanwhile, the thermal stability of PP / PA 6 blend was greatly improved. Compared to its counterparts without PIF processing, the mechanical strength of PIF PP / PA 6 blend was remarkably enhanced, which was even higher than that of PIF PP (Polypropylene). PIF processing could both strengthen and toughen PP / PA 6 blend. Dynamic mechanical analysis ( DMA ) results also indicated that PIF PP / PA blend had higher strength under dynamic mechanical conditions. Furthermore, the PP / PA 6 foams with and without PIF processing were fabricated using a batch foaming method. With PIF processing, the resultant PP / PA 6 blend displayed a significantly enhanced foaming ability with higher cell density and larger expansion ratio.