Synthesis of silica Janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites

The incompatibility between wood components and polymers negatively affects the physical and mechanical properties of wood polymer composites, which is still an obstacle to fabricating wood polymer composites with desirable performance. Inspired by the good compatibilization of Janus structure, sili...

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Autores principales: Xinyao Liu, Zhenyu Fu, Fudong Zhang, Miao Wu, Youming Dong
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Lenguaje:EN
Publicado: Elsevier 2021
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spelling oai:doaj.org-article:b9bb9a2f4fa14ad39f5a2640543720152021-11-04T04:32:09ZSynthesis of silica Janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites2238-785410.1016/j.jmrt.2021.10.100https://doaj.org/article/b9bb9a2f4fa14ad39f5a2640543720152021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421012369https://doaj.org/toc/2238-7854The incompatibility between wood components and polymers negatively affects the physical and mechanical properties of wood polymer composites, which is still an obstacle to fabricating wood polymer composites with desirable performance. Inspired by the good compatibilization of Janus structure, silica Janus nanosheets were synthesized by sol–gel process and used to improve the interfacial interaction of methyl methacrylate (MMA)-impregnated wood in the present study. Results showed that the Janus nanosheets with smooth convex surfaces and rough concave surfaces were successfully synthesized. The thickness of Janus nanosheets was about 30 nm, and the length could be tuned by the time of the ultrasonication. With the addition of 0.5% nanosheets, the interface gaps between the polymer and wood cell wall were remarkably decreased compared to the MMA treated wood samples, indicating the efficient interfacial interaction due to Janus nanosheets. This improved interfacial interaction was also confirmed by the changes of the pore structure of MMA/Janus nanosheets-treated wood samples. The ASE of MMA/Janus sheets-treated wood was improved by 40% compared to MMA-treated wood samples. Compared to untreated wood samples, the water uptake of MMA/Janus sheets-treated wood was reduced by 61%, while the modulus of rupture and modulus of elasticity were improved by 31% and 45%, respectively, which were higher than MMA-treated wood. Moreover, the incorporation of silica nanosheets also improve the thermal stability of the MMA treated wood sample. This preliminary research will provide a new approach for enhancing the interfacial properties of wood polymer composites.Xinyao LiuZhenyu FuFudong ZhangMiao WuYouming DongElsevierarticleWood polymer compositesJanus nanosheetsMethyl methacrylateInterfacial interactionCompatibilityMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 4652-4661 (2021)
institution DOAJ
collection DOAJ
language EN
topic Wood polymer composites
Janus nanosheets
Methyl methacrylate
Interfacial interaction
Compatibility
Mining engineering. Metallurgy
TN1-997
spellingShingle Wood polymer composites
Janus nanosheets
Methyl methacrylate
Interfacial interaction
Compatibility
Mining engineering. Metallurgy
TN1-997
Xinyao Liu
Zhenyu Fu
Fudong Zhang
Miao Wu
Youming Dong
Synthesis of silica Janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites
description The incompatibility between wood components and polymers negatively affects the physical and mechanical properties of wood polymer composites, which is still an obstacle to fabricating wood polymer composites with desirable performance. Inspired by the good compatibilization of Janus structure, silica Janus nanosheets were synthesized by sol–gel process and used to improve the interfacial interaction of methyl methacrylate (MMA)-impregnated wood in the present study. Results showed that the Janus nanosheets with smooth convex surfaces and rough concave surfaces were successfully synthesized. The thickness of Janus nanosheets was about 30 nm, and the length could be tuned by the time of the ultrasonication. With the addition of 0.5% nanosheets, the interface gaps between the polymer and wood cell wall were remarkably decreased compared to the MMA treated wood samples, indicating the efficient interfacial interaction due to Janus nanosheets. This improved interfacial interaction was also confirmed by the changes of the pore structure of MMA/Janus nanosheets-treated wood samples. The ASE of MMA/Janus sheets-treated wood was improved by 40% compared to MMA-treated wood samples. Compared to untreated wood samples, the water uptake of MMA/Janus sheets-treated wood was reduced by 61%, while the modulus of rupture and modulus of elasticity were improved by 31% and 45%, respectively, which were higher than MMA-treated wood. Moreover, the incorporation of silica nanosheets also improve the thermal stability of the MMA treated wood sample. This preliminary research will provide a new approach for enhancing the interfacial properties of wood polymer composites.
format article
author Xinyao Liu
Zhenyu Fu
Fudong Zhang
Miao Wu
Youming Dong
author_facet Xinyao Liu
Zhenyu Fu
Fudong Zhang
Miao Wu
Youming Dong
author_sort Xinyao Liu
title Synthesis of silica Janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites
title_short Synthesis of silica Janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites
title_full Synthesis of silica Janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites
title_fullStr Synthesis of silica Janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites
title_full_unstemmed Synthesis of silica Janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites
title_sort synthesis of silica janus nanosheets and their application to the improvement of interfacial interaction in wood polymer composites
publisher Elsevier
publishDate 2021
url https://doaj.org/article/b9bb9a2f4fa14ad39f5a264054372015
work_keys_str_mv AT xinyaoliu synthesisofsilicajanusnanosheetsandtheirapplicationtotheimprovementofinterfacialinteractioninwoodpolymercomposites
AT zhenyufu synthesisofsilicajanusnanosheetsandtheirapplicationtotheimprovementofinterfacialinteractioninwoodpolymercomposites
AT fudongzhang synthesisofsilicajanusnanosheetsandtheirapplicationtotheimprovementofinterfacialinteractioninwoodpolymercomposites
AT miaowu synthesisofsilicajanusnanosheetsandtheirapplicationtotheimprovementofinterfacialinteractioninwoodpolymercomposites
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