聚丁二烯
共聚物
复合材料
材料科学
甲基丙烯酸甲酯
嫁接
高分子化学
聚合物
作者
Zuo Yan-yan,Qianyi Tang,Mengen Liu,Baijun Liu,Qian Zhang
摘要
Abstract Polybutadiene grafted methyl methacrylate copolymer (PBL‐g‐MMA, MB) with core‐shell structure was prepared by emulsion polymerization. Without adding compatibilizers, PC/ABS composites were blended with polycarbonate (PC) and SAN. The effects of methacrylate butadiene (MB) on mechanical properties, flow properties, and thermal properties of PC/ABS composites were investigated. The results show that the addition of MB has obvious toughening effect on PC/ABS, effectively improving the mechanical properties and melt flow rate (MFR) of PC/ABS composites, and hence significantly improving the processability of PC/ABS composites. When the amount of MB is 12 phr, the notched impact strength of PC/ABS blend can reach up to 430 J/m. This is several times more than pure PC resin. The scanning electron microscope (SEM) analysis results show that the compatibility of PC/ABS and the impact strength of PC/ABS blend are improved with the increase of MB dosage. With the increase of MB content, the softening temperature of Vicat first decreased and then increased. It increased with the increase of PC content.
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