Tensile Stress Relaxation Studies of TiO2 and Natural Rubber Composites

被引：64

作者：

Meera, A. P. ^{[1
]}

Said, Sylvere ^{[2
]}

Grohens, Yves ^{[2
]}

Luyt, A. S. ^{[3
]}

Thomas, Sabu ^{[1
]}

机构：

[1] Mahatma Gandhi Univ, Sch Chem Sci, Kottayam 686560, Kerala, India

[2] Univ Bretagne Sud, Ctr Rech, Lab Polymeres Proprietes Interfaces & Composites, Lorient, France

[3] Univ Free State, Dept Chem, ZA-9866 Phuthaditjhaba, South Africa

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2009年 / 48卷 / 07期

关键词：

NANOCOMPOSITES; BEHAVIOR; FILLERS;

D O I：

10.1021/ie801494s

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Composites of natural rubber were prepared with TiO2 and nanosilica. The stress relaxation behavior of the composites under tension was studied with reference to the filler loading and strain level. It was observed that the rate of stress relaxation increases with increase in filler loading. The rate of stress relaxation was found to be higher for silica-filled NR compared to TiO2-filled NR. This is due to the high degree of agglomeration in silica compared to titanium dioxide filler. The effect of ageing on the stress decay was also investigated and the rate of stress relaxation was found to decrease after ageing. The experimental curves were fitted with the stretched Kohlrausch equation. From the fitting parameters, the relaxation time and the stretching exponent were estimated in order to understand the mechanism of the relaxation processes in the filled natural rubber composites.

引用

页码：3410 / 3416

页数：7

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