Interfacial compatible poly(ethylene glycol) chains modified cellulose nanosphere as bifunctional reinforcements in green polylatic acid for food packagings 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Journal of the Taiwan Institute of Chemical Engineers
年/卷/期
2019 / 95 /
页码
583-593
ISSN号
1876-1070
作者单位
Zhejiang Sci Tech Univ, Coll Mat & Text, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Xiasha Higher Educ Pk 2,Ave 5, Hangzhou 310018, Zhejiang, Peoples R China;Zhejiang Sci Tech Univ, Coll Mat & Text, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Xiasha Higher Educ Pk 2,Ave 5, Hangzhou 310018, Zhejiang, Peoples R China;Zhejiang Sci Tech Univ, Coll Mat & Text, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Xiasha Higher Educ Pk 2,Ave 5, Hangzhou 310018, Zhejiang, Peoples R China;Zhejiang Sci Tech Univ, Coll Mat & Text, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Xiasha Higher Educ Pk 2,Ave 5, Hangzhou 310018, Zhejiang, Peoples R China;Zhejiang Sci Tech Univ, Coll Mat & Text, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Xiasha Higher Educ Pk 2,Ave 5, Hangzhou 310018, Zhejiang, Peoples R China;Zhejiang Sci Tech Univ, Coll Mat & Text, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Xiasha Higher Educ Pk 2,Ave 5, Hangzhou 310018, Zhejiang, Peoples R China;Zhejiang Sci Tech Univ, Coll Mat & Text, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Xiasha Higher Educ Pk 2,Ave 5, Hangzhou 310018, Zhejiang, Peoples R China;
作者
Yang, Lili;Zhu, Jiaying;Gu, Jiping;Yao, Juming;Yu, Hou-Yong;Zhang, Heng;Abdalkarim, Somia Yassin Hussain;
摘要
The single enhancement of cellulose nanosphere (CNS) can improve crystallization and mechanical strength of poly(lactic acid) (PLA) by heterogeneous nucleation, even their poor compatibility. However, little attention is paid to the synergistic effects of interfacial interaction, nucleation and plasticizing to enhance the performances of PLA materials. The main objective of this work was to graft plasticizing poly(ethylene glycol) (PEG) with various chain lengths on CNS surface, and the effect of CNS-g-PEG and CNS on the PLA properties was compared. It is found that at the same loadings, the addition of CNS-gPEG showed a more positive effect on chain mobility, crystallinity, thermal stability, mechanical, barrier, and migration properties of PLA than CNS. Especially, simultaneous enhancements in strength and toughening were found for all the PLA/CNS-g-PEG nanocomposites, the strength and elongation at break for PLA/CNS-g-PEG6000 were increased by 101.4% and 431.7%, respectively. Meanwhile the water uptake and water vapor permeability of PLA/CNS-g-PEG2000 were reduced by 78.5% and 76.2%, respectively. This study suggests that green PLA nanocomposite films containing CNS-g-PEG nanofillers could be used as robust-barrier food packaging materials. (C) 2018 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机翻摘要
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关键词/主题词
Cellulose nanosphere;Poly(ethylene glycol);Polylactic acid;Interfacial effect;Water vapor permeability;
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