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4715331 
Journal Article 
Synergistic toughening effect of chlorinated polyethylene and acrylic resin on SAN/ASA blends at low temperature 
Mao, Z; Zhang, Jun 
2016 
Yes 
Journal of Applied Polymer Science
ISSN: 0021-8995
EISSN: 1097-4628 
133 
37 
WOS:000379698800023 
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. 
blends; copolymers; glass transition; properties and characterization