羧甲基纤维素
聚乳酸
材料科学
铁
极限抗拉强度
热稳定性
相容性(地球化学)
复合数
纤维素
接触角
丹宁
复合材料
氯化物
化学工程
聚合物
化学
冶金
钠
工程类
食品科学
作者
Jian Xiao,Tingting Liu,Qiulu Chu,Chaoguang Yu,Yunlong Yin,Lei Xuan,Shufang Wu
出处
期刊:Molecules
[Multidisciplinary Digital Publishing Institute]
日期:2024-06-13
卷期号:29 (12): 2822-2822
被引量:2
标识
DOI:10.3390/molecules29122822
摘要
Carboxymethyl cellulose (CMC) and polylactic acid (PLA) are recognized for their environmental friendliness. By merging them into a composite film, packaging solutions can be designed with good performance. Nonetheless, the inherent interface disparity between CMC and PLA poses a challenge, and there may be layer separation issues. This study introduces a straightforward approach to mitigate this challenge by incorporating tannin acid and ferric chloride in the fabrication of the CMC−PLA. The interlayer compatibility was improved by the in situ formation of a cohesive interface. The resulting CMC/TA−PLA/Fe multilayer film, devoid of any layer separation, exhibits exceptional mechanical strength, with a tensile strength exceeding 70 MPa, a high contact angle of 105°, and superior thermal stability. Furthermore, the CMC/TA−PLA/Fe film demonstrates remarkable efficacy in blocking ultraviolet light, effectively minimizing the discoloration of various wood surfaces exposed to UV aging.
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