期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 142, 期 -, 页码 551-558出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2019.09.129
关键词
Poly(vinyl alcohol); Lignin nanomicelle; Water vapor barrier; UV- shielding
资金
- National Natural Science Foundation of China, China [21706082]
- Science and Technology Program of Guangzhou, China [201707020025, 201804010140]
- Natural Science Foundation of Guangdong Province, China [2017B090903003, 201813030311052]
High performance poly(vinyl alcohol) (PVA)/lignin nanomicelle (LNM) nanocomposite films with good vapor barrier and advanced UV-shielding properties were fabricated in this study. LNM was homogeneously distributed in the PVA matrix and strong robust hydrogen bonds were successfully constructed between LNM and PVA matrix. With only 5 wt% loading of LNM into the PVA/LNM nanocomposite, the water vapor transmission rate (WVTR) was declined by about 189% compared with pure PVA. Moreover, after introducing lignin, the PVA nanocomposite films showed improved tensile strength and toughness, excellent UV-blocking and good thermal stability. As both lignin and PVA are biodegradable, this study shows a meaningful design approach for biodegradable functional nanocomposite films using cheap and easily available biomass and biodegradable raw materials. (C) 2019 Elsevier B.V. All rights reserved.
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