Blends of bisphenol A polycarbonate and rubber‐toughened styrene–maleic anhydride copolymers
Blends of bisphenol A polycarbonate and rubber‐toughened styrene–maleic anhydride copolymers
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DOI：
10.1002/(sici)1097-4628(19991107)74:6
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发表时间：
1999-11
影响因子：
3
通讯作者：
H. Stretz;P. Cassidy;D. R. Paul
中科院分区：
文献类型：
--
作者：
H. Stretz;P. Cassidy;D. R. Paul
研究了橡胶增韧苯乙烯-马来酸酐共聚物（TSMA）与聚碳酸酯（PC）共混物的形态结构和力学性能，并与PC与丙烯腈-丁二烯-苯乙烯（ABS）共混物的性能进行了比较。PC/TSMA共混物表现出与PC/ABS共混物类似的性能依赖性。与TSMA的聚碳酸酯共混物表现出更高的缺口悬臂梁冲击韧性比纯PC在尖锐的缺口条件下，但改善是有点小于观察到的类似的共混物与ABS。由于PC以其冲击韧性而闻名，除了在尖锐缺口条件下，这代表了橡胶改性共混物的显著优点。将含有苯乙烯-马来酸酐共聚物（SMA）的PC共混物与含有苯乙烯-丙烯腈共聚物（SAN）的PC共混物进行了比较。共混物形态和力学性能的趋势被发现是定性的两种类型的共聚物相似。PC/SMA共混物几乎是透明的或稍微有珠光。© 1999 John Wiley & Sons，Inc.应用聚合物科学杂志74：1508-1515，1999
The morphology and mechanical properties of polycarbonate (PC) blends with rubber-toughened styrene–maleic anhydride copolymer materials (TSMA) were investigated and compared with the properties of blends of PC with acrylonitrile–butadiene–styrene (ABS) materials. The PC/TSMA blends showed similar composition dependence of properties as the comparable PC/ABS blends. Polycarbonate blends with TSMA exhibited higher notched Izod impact toughness than pure PC under sharp-notched conditions but the improvements are somewhat less than observed for similar blends with ABS. Since PC is known for its impact toughness except under sharp-notched conditions, this represents a significant advantage of the rubber-modified blends. PC blends with styrene–maleic anhydride copolymer (SMA) were compared to those with a styrene–acrylonitrile copolymer (SAN). The trends in blend morphology and mechanical properties were found to be qualitatively similar for the two types of copolymers. PC/SMA blends are nearly transparent or slightly pearlescent. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 1508–1515, 1999