Preparation and properties of colloidal silica-filled natural rubber grafted with poly(methyl methacrylate)

被引：0
作者：
Thuong Nghiem Thi
Huong Dao Van
Ha Cao Hong
Hanh Nguyen Thi Ha
Yusof Nurul Hayati
Seiichi Kawahara
机构：
[1] Hanoi University of Science and Technology,School of Chemical Engineering
[2] Malaysian Rubber Board,Engineering and Technology Division
[3] Nagaoka University of Technology,Department of Materials Science and Technology
来源：
Polymer Bulletin | 2022年 / 79卷
关键词：
Natural rubber; Methyl methacrylate; Vinyltriethoxysilane; Graft copolymerization; Colloidal silica; Properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Colloidal silica-filled deproteinized natural rubber (DPNR) grafted with poly(methyl methacrylate) (PMMA) (DPNR-graft-PMMA/silica) was prepared and characterized. DPNR-graft-PMMA/silica was prepared by graft copolymerization of NR latex with MMA and tert-butyl hydroperoxide/tetraethylenepentamine as initiators, followed by the addition of silica precursor, i.e., vinyltriethoxysilane (VTES). Various amounts of colloidal silica were introduced by varying VTES concentrations accordingly. The resulting DPNR-graft-PMMA/silica sample was analyzed through Fourier transformed infrared and nuclear magnetic resonance (NMR) spectroscopy. PMMA was successfully grafted on NR particles, and colloidal silica particles productively generated in DPNR-graft-PMMA latex. Properties of DPNR-graft-PMMA/silica, i.e., tensile strength and hardness, were significantly improved than those of DPNR. Low water contact angles of DPNR-graft-PMMA and DPNR-graft-PMMA/silica indicated the polar characteristic of colloidal silica and PMMA particles, enhancing the compatibility of those components in DPNR-graft-PMMA/silica.
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页码：6011 / 6027
页数：16
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