期刊
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION
卷 22, 期 6, 页码 534-544出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/1023666X.2017.1342190
关键词
Acrylonitrile-styrene-acrylate; controllable core-shell structure; different core-shell ratios; impact toughness; three-stage seeded emulsion polymerization
资金
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Innovation Foundation for Graduate Students of Jiangsu Province [KYCX17_0971]
Acrylonitrile-styrene-acrylate (ASA) with controllable core-shell structure was prepared through three-stage seeded emulsion polymerization. A series of characterizations had been performed to study the effect of different core-shell ratios on the properties of ASA. The most interesting was that the impact strength of ASA exhibited a wave variation instead of a linear variation with the increasing loading content of poly(butyl acrylate) (PBA) core. Moreover, the threshold of impact strength appeared at 49.725wt% PBA content, nearly 33 kJ/m(2). To explain this unusual variation, an impact schematic was proposed.
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