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Effect of Process Aids on Rheological and Mechanical Properties of Styrene-Butadiene Rubber Compound  

Kang, Yong-Gu (R&D Center of Nexen Tire Company)
Jung, Hoon (R&D Center of Nexen Tire Company)
Kim, Tae-Nyun (Department of Textile and Clothing, College of Engineering, Woosuk University)
Kim, Wan-Doo (Rubber Mechanics Lab., Korea Institute of Machinery & Materials, Daejeon)
Nah, Chang-Woon (School of Advanced Materials, College of Engineering, Chonbuk National University)
Publication Information
Elastomers and Composites / v.37, no.3, 2002 , pp. 170-176 More about this Journal
Abstract
Effects of type and loading level of process aids on the rheological and mechanical properties of styrene-butadiene rubber (SBR) compound were investigated. Five commercial grades of process aids composed of fatty acids and their various derivatives such as metal salts, esters, alcohols and amides were selected. The reduction in Mooney and shear viscosities was higher for metal salt-type process aids but lower for the process aids containing high molecular weight fatty acid alcohols and esters with increasing the loading of process aids. Tensile modulus generally decreased, while heat-build-up increased with increased process aids content. No considerable effect was observed for ulimate properties such as tensile strength and elongation at break.
Keywords
process aids; fatty acid; styrene-butadiene rubber; rheological property and mechanical property;
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