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Study on the Frictional Properties of Nylons Synthesized by Varying Catalyst Content  

Chung, Dae-Won (Department of Polymer Engineering, College of Engineering, University of Suwon)
Kang, Suk-Choon (Department of Mechanical Engineering, College of Engineering, University of Suwon)
Publication Information
Polymer(Korea) / v.29, no.1, 2005 , pp. 14-18 More about this Journal
Abstract
Nylons were synthesized by anionic polymerization of ${\varepsilon}$--caprolactam while varying the content of catalyst. Polymerization rates, molecular weights, mechanical properities and frictional properties of the nylons were investigated. As the ratio of catalyst to initiator was increased up to 1.0%, the polymerization rate, conversion and molecular weight were found to increase, and mechanical properties except impact strength were improved. Frictional properties were affected mainly by tensile strength and hardness. According to the study on the friction coefficient, product of stress (P) and velocity (V), PV limit, and abrasive wear rate, nylon synthesized at 1.0% of the ratio of catalyst to initiator showed the best performance for sliding machine elements.
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