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首页> 外文期刊>Journal of Applied Polymer Science >Synergistic toughening effect of chlorinated polyethylene and acrylic resin on SAN/ASA blends at low temperature
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Synergistic toughening effect of chlorinated polyethylene and acrylic resin on SAN/ASA blends at low temperature

机译：低温下氯化聚乙烯和丙烯酸树脂对SAN / ASA混合物的协同增韧作用

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摘要

Styrene-acrylonitrile copolymer (SAN)/acrylonitrile-styrene-acrylate terpolymer (ASA) blends (75/25, w/w) were toughened by blending with chlorinated polyethylene (CPE) and acrylic resin (ACR) at three different temperatures (-30, 0, and 25 degrees C). When the testing temperature was 0 and 25 degrees C, CPE played a key role in improving the impact strength of blends instead of ACR. However, an obvious synergistic toughening effect of CPE and ACR was observed at -30 degrees C: when both 10 phr CPE and 15 phr ACR were added, the impact strength of the blends reached a peak at 7.50 kJ/m(2), which was about two to three times higher than when 25 phr CPE or 25 phr ACR was introduced into the blends individually. Scanning electron microscopy, dynamic mechanical analysis, and surface energy measurements were used to investigate the toughening mechanism. Furthermore, other mechanical properties and the heat distortion temperatures were evaluated. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43958.
机译：苯乙烯-丙烯腈共聚物（SAN）/丙烯腈-苯乙烯-丙烯酸酯三元共聚物（ASA）的共混物（75/25，w / w）通过在三种不同温度（-30）下与氯化聚乙烯（CPE）和丙烯酸树脂（ACR）共混来增韧，0和25摄氏度）。当测试温度为0和25摄氏度时，CPE在改善共混物而不是ACR的冲击强度方面起着关键作用。然而，在-30摄氏度时观察到了CPE和ACR的协同增效作用：当同时添加10 phr CPE和15 phr ACR时，共混物的冲击强度达到7.50 kJ / m的峰值（2）。与将25 phr CPE或25 phr ACR分别引入共混物中的情况相比，它的含量高约2至3倍。使用扫描电子显微镜，动态力学分析和表面能测量来研究增韧机理。此外，评估了其他机械性能和热变形温度。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43958。

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