淀粉
吸水率
溶解度
极限抗拉强度
羧甲基纤维素
材料科学
含水量
化学工程
复合材料
核化学
化学
肿胀 的
食品科学
有机化学
冶金
岩土工程
钠
工程类
作者
Katarzyna Wilpiszewska
出处
期刊:Polish Journal of Chemical Technology
[De Gruyter]
日期:2019-06-01
卷期号:21 (2): 26-30
被引量:21
标识
DOI:10.2478/pjct-2019-0016
摘要
Abstract The hydrophilic films based on starch and carboxymethyl starch (CMS) were obtained using cast method. The effect of CMS content on the physicochemical properties of prepared films were evaluated. With increasing content of starch derivative the moisture absorption, solubility in water as well as swelling ratio increased. The highest values of mechanical parameters (tensile strength and Young’s modulus) were determined for the starch/CMS film containing the lowest CMS amount, i.e. 10 wt.% (1.1 MPa, 15 MPa, respectively). For the same system the lowest moisture absorption, solubility in water as well as swelling ratio were reported. Thus, it could be concluded that for this system the highest crosslinking density has been achieved, what was confirmed by DMTA results. Such a film could potentially find application in food or agricultural industry.
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