Molecular Structure of Acrylate Copolymers Used for Toughening Starch Film

Zhiyong Qiao; Zhifeng Zhu; Qi Wang

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Molecular Structure of Acrylate Copolymers Used for Toughening Starch Film

机译：用于增韧淀粉膜的丙烯酸酯共聚物的分子结构

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The toughening of acrylate copolymers on starch film was investigated for removing warp sizing film brittleness and rigidity. Acrylate copolymers used were prepared through radical copolymerization in ethanol. The film was evaluated in terms of breaking extension, tensile strength, abrasion resistance, and flex-fatigue resistance. Structural parameters of the copolymers were determined. Copolymer toughening of starch film strongly depended on structural parameters. Use of a-methyl-containing acrylates did not improve toughness. Incorporating longer chain alkyl esters into the copolymers could remove starch film defects through blending. Poly(butyl acrylate-co-acrylic acid) with a molar ratio of BA70/AA30 gave better film toughening. Preferred copolymer content used was 20% based on dry weight of the film.

机译：为了消除翘曲施胶膜的脆性和刚性，研究了淀粉膜上丙烯酸酯共聚物的增韧。所用的丙烯酸酯共聚物是通过在乙醇中进行自由基共聚制备的。根据断裂伸长率，拉伸强度，耐磨性和耐挠曲疲劳性评价膜。确定了共聚物的结构参数。淀粉薄膜的共聚物增韧在很大程度上取决于结构参数。使用含α-甲基的丙烯酸酯不会提高韧性。将长链烷基酯掺入共聚物中可以通过共混去除淀粉膜缺陷。摩尔比为BA70 / AA30的聚（丙烯酸丁酯-共丙烯酸）可提供更好的膜韧性。基于膜的干重，使用的优选共聚物含量为20％。

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《Textile Chemist and Colorist & American Dyestuff Reporter》 |2011年第2期|p.65-69|共5页
作者
Zhiyong Qiao; Zhifeng Zhu; Qi Wang;
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作者单位

Jingnan University;

Key Laboratory of Eco-textiles, Ministry of Education, College of Textiles and Gar- ments, Jiangnan University, Lihu Rd. #1800, Wuxi 214122, P. R. China;

Donghua University;

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原文格式 PDF
正文语种 eng
中图分类
关键词
acrylate copolymer; film; sizing agents; starch; structure; toughness;

机译：丙烯酸酯共聚物;电影;上浆剂;淀粉;结构体;韧性;

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Molecular Structure of Acrylate Copolymers Used for Toughening Starch Film

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