期刊
HELIYON
卷 6, 期 11, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.heliyon.2020.e05559
关键词
Materials science; Materials chemistry; Starch soybean oil catalyzed transesterification hydrophobic coating cellulose
资金
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) [106.02.2018.315]
Biodegradable modified natural polymers have great potential in curbing the threat of plastic pollution, but are still uncompetitive to petrochemical-based plastic. In this study, starch was hydrophobized by treating starch-dimethyl sulfoxide solutions with soybean oil at high temperature in the presence of sodium carbonate, then spray-coated on paper. The modified starch was evaluated by Fourier-transform infrared spectroscopy analysis and contact angle value measurement of coated paper. FTIR analysis confirmed the substitution of hydroxyl groups with fatty acid ester and provided an estimate of the degree of substitution. The contact angle value of starch-coated paper surfaces was 121 degrees, and was 111 degrees after 10 min, demonstrating the high hydrophobicity and potential of the modified starch coating as a water-resistant treatment. The high hydrophobicity of the coated paper was due to formation of a textured surface with two levels of roughness, caused by the deposition of rough hydrophobic starch particles on paper fibers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据