期刊
JOURNAL OF THE TEXTILE INSTITUTE
卷 113, 期 6, 页码 1083-1092出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/00405000.2021.1915572
关键词
Locust bean gum; graft copolymerization; methyl acrylate; acrylic acid; sizing performance
资金
- Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province [QJRZ1902]
- Technological Research Project for Public Welfare of Zhejiang Province [LGG21E030005]
Grafting MA and AA onto the molecular chains of LBG is an effective method to improve the application performance of vegetable gelatin sizes, such as the toughness of sizing film and adhesion to polyester fibers. The LBG-g-P(AA-co-MA) sizes show the best overall performance at the appropriate feed molar ratio of 3/7.
In order to impart good application performance to locust bean gum (LBG) sizes for polyester yarns, methyl acrylate (MA) and acrylic acid (AA) monomers with a variation in feed molar ratio from 1/9 to 4/6 were grafted onto the molecular chains of native LBG to obtain LBG-g-P(MA-co-AA) products with similar grafting ratios through Fenton redox system. Effects of monomer compatibility of MA and AA on sizing performance of the LBG-g-P(MA-co-AA) were studied in terms of apparent viscosity, contact angle of sizing paste on polyester fibers, water-solubility, mechanical properties of sizing film, and adhesion to polyester fibers. It was found that grafting MA and AA with rational compatibility onto the molecular chains of LBG was an effective method to improve the application performance of the vegetable gelatin sizes, such as good toughness of sizing film and high adhesion to polyester fibers. In view of overall performance of the LBG-g-P(AA-co-MA) sizes, the appropriate feed molar ratio of MA/AA should be 3/7.
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