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Effects of nano-ZnO and nano-SiO2 particles on properties of PVA/xylan composite films.

Abstract：

:The effects of nano-ZnO and nano-SiO2 on the properties of PVA/xylan composite films were investigated in this work. Results showed that nano-ZnO and nano-SiO2 could effectively improve the mechanical strength, moisture and oxygen barrier properties and surface hydrophobic property of the composite films. The results of FTIR and XRD indicated the interaction of hydrogen bonds between nanoparticles and PVA and xylan. When the contents of nano-ZnO and nano-SiO2 in the composite films were 3%, the tensile strength was increased to 20.4 MPa and 22.5 MPa, respectively, while water vapor permeability (3.14 and 3.03 × 10-11 g·m-1·s-1·Pa-1) and oxygen permeability (5.28 and 5.003 cm3·m-2·24 h-1·0.1 MPa-1) reached the minima. With the increase of nano-ZnO and nano-SiO2 dosage, the solubility of composite films was increased. When the contents of nano-ZnO and nano-SiO2 were 3% and 4%, respectively, the contact angles of the films was increased up to 101° and 78°. Besides, the composite films with nano-ZnO exhibited UV shielding performance, whereas the ones with nano-SiO2 had similar UV light-transparency to the pure PVA/xylan composite films.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Liu X,Chen X,Ren J,Chang M,He B,Zhang C

doi

10.1016/j.ijbiomac.2019.03.088

subject

Has Abstract

pub_date

2019-07-01 00:00:00

pages

978-986

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(18)36371-2

journal_volume

132

pub_type

杂志文章

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