聚乙烯吡咯烷酮
极限抗拉强度
材料科学
热重分析
制作
乙基纤维素
接触角
复合材料
傅里叶变换红外光谱
醋酸纤维素
化学工程
热稳定性
纤维素
聚合物
高分子化学
病理
工程类
医学
替代医学
作者
Jingshan Rao,Chaoyi Shen,Zhichao Yang,Olaniyi Amos Fawole,Jiangkuo Li,Di Wu,Di Wu
标识
DOI:10.1016/j.carbpol.2022.119702
摘要
Much attention and endeavor have been paid to developing biocompatible food packaging films. Here, ethyl cellulose (EC) and polyvinylpyrrolidone (PVP) were fabricated into films through a facile method, microfluidic spinning. Morphology observations showed that the fibers were neatly arranged with an average diameter of 1-4 μm. FTIR and X-ray diffraction analysis suggested the existence of good compatibility and interaction between EC and PVP. Thermogravimetric analysis demonstrated that PVP ameliorates the thermal properties; moreover, the tensile properties were improved, with tensile strength (TS) and Young's modulus up to 11.10 ± 1.04 MPa and 350.16 ± 45.46 MPa, respectively. The optimal formula was EC/PVP (2:3), of which the film displayed an enhanced TS of 4.61 ± 1.15 MPa and a modified water contact angle of 61.8 ± 4.4°, showing fine tensile and hydrophilic performance. This study provides a facile and green film fabrication method promising to be used for food wrapping.
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