Styrene grafted natural rubber reinforced by in situ silica generated via sol-gel technique

被引：23

作者：

Sittiphan, Torpong ^{[1
]}

Prasassarakich, Pattarapan ^{[2
]}

Poompradub, Sirilux ^{[2
]}

机构：

[1] Chulalongkorn Univ, Program Petrochem & Polymer Sci, Fac Sci, Bangkok 10330, Thailand

[2] Chulalongkorn Univ, Dept Chem Technol, Fac Sci, Bangkok 10330, Thailand

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2014年 / 181卷

关键词：

Graft copolymer; In situ silica; Sol-gel process; Nanocomposite materials; CORE-SHELL PARTICLES; METHYL-METHACRYLATE; REDOX INITIATOR; MECHANICAL-PROPERTIES; COMPOSITE-PARTICLES; BUTADIENE RUBBER; COPOLYMERIZATION; POLYSTYRENE; MATRIX; LATEX;

D O I：

10.1016/j.mseb.2013.11.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The filling of styrene graft natural rubber (ST-GNR) with in situ formed silica was performed using the sol-gel reaction via the latex solution method. The mechanical properties of ST-GNR/NR vulcanizate were improved when using the in situ formed silica to levels higher than those obtained with the commercial ex situ formed silica filled ST-GNR/NR vulcanizates at a comparable silica content of 12 parts by weight per hundred parts of rubber. Transmission electron microscopy analysis revealed that the in situ silica particles were small (similar to 40 nm diameter) and well dispersed, while the commercial silica particles were larger (similar to 60 nm diameter) and markedly agglomerated in the rubbery matrix. The mechanical properties of the composites prepared via both the solid rubber and latex solution methods were comparable. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：39 / 45

页数：7

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