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http://dx.doi.org/10.7473/EC.2011.46.4.329

Cure Characteristics, Physical Properties and Ozone Resistance of Butyl Rubber and EPDM Rubber Blends  

Park, Chan-Young (Department of Polymer Engineering, Pukyong National University)
Hwang, Young-Bea (Tech Center Material Research, Nexen Corp.)
Publication Information
Elastomers and Composites / v.46, no.4, 2011 , pp. 329-334 More about this Journal
Abstract
In general, butyl rubber(IIR : isobutylene isoprene rubber) has excellent gas permeability resistance and impact absorbance property as low resilience elastomer. In this experiment butyl rubber blends with EPDM(ethylene propylene diene monomer) were prepared by mechanical mixing method. Curing behavior, physical properties and ozone resistance etc. were subsequently examined. Measurement results of gas transmission rate test shows that butyl rubber contents above 50 wt% showed significant decrease in gas permeability resistant property. However, in butyl rubber/EPDM blend, EPDM contents above 25 wt% indicates no surface change due to improvement of ozone resistance under the condition of 50 pphm, $50^{\circ}C$, 120 hrs.
Keywords
mooney viscosity; butyl rubber; gas permeability property; EPDM; curing behavior; ozone resistance;
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Times Cited By KSCI : 1  (Citation Analysis)
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