Effects of cellulose nanofibrils/graphene oxide hybrid nanofiller in PVA nanocomposites

被引：44
作者：
Jia, Yuanyuan [1 ,2 ]
Hu, Chunrui [1 ]
Shi, Peidong [3 ]
Xu, Qianqian [1 ]
Zhu, Wenjing [1 ]
Liu, Rui [3 ]
机构：
[1] Tianjin Univ Sci & Technol, Coll Chem Engn & Mat, Tianjin Key Lab Brine Chem Ind & Ecol Utilizat Re, Tianjin 300457, Peoples R China
[2] Tianjin Univ Sci & Technol, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China
[3] Tianjin Univ Sci & Technol, State Key Lab Food Nutr & Safety, Tianjin 300457, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2020年 / 161卷
关键词：
Nanocellulose fibrils; Graphene oxide; PVA; Hybrid nanofiller; Ultraviolet shielding; Water resistance; GRAPHENE OXIDE; POLY(VINYL ALCOHOL); NANOCRYSTALS; TRANSPARENT; FILMS; FABRICATION; BARRIER;
D O I：
10.1016/j.ijbiomac.2020.06.013
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
NCF/GO hybrid nanofillers with excellent UV-shielding properties were prepared by using TEMPO-oxidized nanocellulose fibrils (NCF) and graphene oxide (GO) as raw materials; different mass ratios of NCF to GO (2: 1, 4: 1, 8: 1, and 16: 1) were used. The NCF and GO were then combined and used as a hybrid filler to study the synergistic effects on polyvinyl alcohol (PVA) nanocomposites. With 5% hybrid nanofiller, the UV-shielding performance of the PVA/NCF/GO composite film was higher than 90%. The tensile strength and Young's modulus of the PVA/CG-2 composite film increased by 74.5% and 278.0%, respectively, and the water absorption decreased by 59%. Moreover, the thermal stabilities of the nanocomposites also improved. This synergistic effect improved the performance of the hybrid nanofiller by avoiding the agglomeration of nanofillers in the polymer matrix and improving the homogeneity of the dispersion. The synergistic effect between the fillers provides a new idea for the preparation of novel multifunctional nanocomposites. (C) 2020 Elsevier B.V. All rights reserved.
引用
收藏
页码：223 / 230
页数：8
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