Preparation, structural characterization, and antioxidative behavior in natural rubber of antioxidant GM functionalized nanosilica

Li, H; Liang, T; Li, F; Wu, W; Lai, X; Guo, J; Zeng, X

Preparation, structural characterization, and antioxidative behavior in natural rubber of antioxidant GM functionalized nanosilica

Li, H Liang, T Li, F Wu, W

Lai, X Guo, J Zeng, X

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Publication Type:: Journal Article
Citation:: Polymer Composites, 2017, 38 (7), pp. 1241 - 1247
Issue Date:: 2017-07-01

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Field	Value	Language
dc.contributor.author	Li, H	en_US
dc.contributor.author	Liang, T	en_US
dc.contributor.author	Li, F	en_US
dc.contributor.author	Wu, W https://orcid.org/0000-0002-3601-9294	en_US
dc.contributor.author	Lai, X	en_US
dc.contributor.author	Guo, J	en_US
dc.contributor.author	Zeng, X	en_US
dc.date.issued	2017-07-01	en_US
dc.identifier.citation	Polymer Composites, 2017, 38 (7), pp. 1241 - 1247	en_US
dc.identifier.issn	0272-8397	en_US
dc.identifier.uri	http://hdl.handle.net/10453/124714
dc.description.abstract	© 2015 Society of Plastics Engineers To restrain the migration and extractability of the antioxidants and improve the dispersion of nanosilica in natural rubber (NR), antioxidant 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylbenzyl)-4-methyphenyl acrylate (GM) functionalized nanosilica was prepared using antioxidant coupling agent (KH590-GM) as functional modifier, which was first synthesized through thiol-ene reaction between the mercapto group of γ-mercaptopropyl trimethoxysilane (KH590) and the CC double bonds of antioxidant GM. Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance confirmed the structure of KH590-GM and GM functionalized nanosilica. Thermogravimetry analysis indicated that the grafting rate of GM functionalized nanosilica reached 13.4%, and the antioxidant had good thermal stability. Scanning electron microscope and mechanical properties measurement showed GM functionalized nanosilica was dispersed uniformly in NR vulcanizates, and helpful for the increase of the tensile strength and tensile stress of NR vulcanizates. Based on the study of the antioxidative behavior and extraction resistance of the NR vulcanizates, it was found that in contrast to NR vulcanizates with GM, the ageing coefficient and oxidation induction time of that with GM functionalized nanosilica increased to 0.66 and 39 min from 0.58 and 30 min, respectively. Furthermore, the NR vulcanizates with GM functionalized nanosilica also exhibited excellent extraction resistance. POLYM. COMPOS., 38:1241–1247, 2017. © 2015 Society of Plastics Engineers.	en_US
dc.relation.ispartof	Polymer Composites	en_US
dc.relation.isbasedon	10.1002/pc.23688	en_US
dc.subject.classification	Polymers	en_US
dc.title	Preparation, structural characterization, and antioxidative behavior in natural rubber of antioxidant GM functionalized nanosilica	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	38	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0912 Materials Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	38	en_US

Abstract:

© 2015 Society of Plastics Engineers To restrain the migration and extractability of the antioxidants and improve the dispersion of nanosilica in natural rubber (NR), antioxidant 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylbenzyl)-4-methyphenyl acrylate (GM) functionalized nanosilica was prepared using antioxidant coupling agent (KH590-GM) as functional modifier, which was first synthesized through thiol-ene reaction between the mercapto group of γ-mercaptopropyl trimethoxysilane (KH590) and the CC double bonds of antioxidant GM. Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance confirmed the structure of KH590-GM and GM functionalized nanosilica. Thermogravimetry analysis indicated that the grafting rate of GM functionalized nanosilica reached 13.4%, and the antioxidant had good thermal stability. Scanning electron microscope and mechanical properties measurement showed GM functionalized nanosilica was dispersed uniformly in NR vulcanizates, and helpful for the increase of the tensile strength and tensile stress of NR vulcanizates. Based on the study of the antioxidative behavior and extraction resistance of the NR vulcanizates, it was found that in contrast to NR vulcanizates with GM, the ageing coefficient and oxidation induction time of that with GM functionalized nanosilica increased to 0.66 and 39 min from 0.58 and 30 min, respectively. Furthermore, the NR vulcanizates with GM functionalized nanosilica also exhibited excellent extraction resistance. POLYM. COMPOS., 38:1241–1247, 2017. © 2015 Society of Plastics Engineers.

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