Cellulose Nanocrystal Reinforced Chitosan Based UV Barrier Composite Films for Sustainable Packaging

被引：111
作者：
Yadav, Mithilesh [1 ,2 ]
Behera, Kartik [1 ]
Chang, Yen-Hsiang [3 ,4 ]
Chiu, Fang-Chyou [1 ,3 ]
机构：
[1] Chang Gung Univ, Dept Chem & Mat Engn, Taoyuan 333, Taiwan
[2] VBS Purvanchal Univ Jaunpur, Prof Rajendra Singh Inst Phys Sci Study & Res, Dept Chem, Siddikpur 222002, UP, India
[3] Chang Gung Mem Hosp, Dept Gen Dent, Taoyuan 333, Taiwan
[4] Chang Gung Univ, Grad Inst Dent & Craniofacial Sci, Taoyuan 333, Taiwan
来源：
POLYMERS | 2020年 / 12卷 / 01期
关键词：
nanocomposite; chitosan; cellulose nanocrystal; UV barrier; mechanical properties; NANOCOMPOSITE FILMS; GRAPHENE OXIDE; STARCH FILMS; TRANSPARENT; CARRAGEENAN; WATER; BIONANOCOMPOSITE; BIODEGRADATION; FABRICATION; SPHERES;
D O I：
10.3390/polym12010202
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this study, green composite films based on cellulose nanocrystal/chitosan (CNC/CS) were fabricated by solution casting. FTIR, XRD, SEM, and TEM characterizations were conducted to determine the structure and morphology of the prepared films. The addition of only 4 wt.% CNC in the CS film improved the tensile strength and Young's modulus by up to 39% and 78%, respectively. Depending on CNC content, the moisture absorption decreased by 34.1-24.2% and the water solubility decreased by 35.7-26.5% for the composite films compared with neat CS film. The water vapor permeation decreased from 3.83 x 10(-11) to 2.41 x 10(-11) gm(-1) s(-1)Pa(-1) in the CS-based films loaded with (0-8 wt.%) CNC. The water and UV barrier properties of the composite films showed better performance than those of neat CS film. Results suggested that CNC/CS nanocomposite films can be used as a sustainable packaging material in the food industry.
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页数：22
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