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Journal of Materials Science

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12-05-2020 | Composites & nanocomposites

Effect of coated and encapsulated polyacrylate/nano-SiO₂ composite emulsions on the finishing performances of leather via miniemulsion polymerization

Authors: Dangge Gao, Zhouyang Zhao, Bin Lyu, Jianzhong Ma

Published in: Journal of Materials Science | Issue 23/2020

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Abstract

In this study, the polyacrylate/nano-SiO₂ (PA/SiO₂) composite emulsion with ideal encapsulated and coated morphologies were prepared by miniemulsion polymerization. They, respectively, are encapsulated PA/SiO₂-S composite emulsion, coated PA/SiO₂-Q and PA/SiO₂-W composite emulsion. The morphology of the composite emulsions were characterized by transmission electron microscope, and the results showed that the nano-SiO₂ were encapsulated inside or coated around the latex particles. We investigated microstructure and properties of the composite emulsions after film formation which effect by nano-SiO₂ existence forms by scanning electron microscope, thermogravimetric analysis, tensile strength, elongation at break and water absorption test. The PA/SiO₂-W composite film had the best tensile strength of 6.3 MPa and a maximum thermal decomposition temperature of 415.2 °C. Furthermore, the PA/SiO₂ composite emulsions were applied to leather finishing. The results demonstrated that the PA/SiO₂-W composite emulsion increased the breathability and water vapor permeability of leather simple to 210.8% and 69.8%, respectively, which shows the emulsion has excellent comprehensive performance and potential application as the leather finishing agent.

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Title: Effect of coated and encapsulated polyacrylate/nano-SiO2 composite emulsions on the finishing performances of leather via miniemulsion polymerization
Authors: Dangge Gao
Zhouyang Zhao
Bin Lyu
Jianzhong Ma
Publication date: 12-05-2020
Publisher: Springer US
Published in: Journal of Materials Science / Issue 23/2020
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-020-04776-3

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