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Polymers and Polymer Composites

INFLUENCE OF ELECTRON BEAM IRRADIATION AND STEP-CROSSLINKING PROCESS ON SOLVENT PENETRATION AND THERMAL PROPERTIES OF NATURAL RUBBER VULCANIZATES

January 1, 2005 By: Madani M; Badawy M M Research article

Title: INFLUENCE OF ELECTRON BEAM IRRADIATION AND STEP-CROSSLINKING PROCESS ON SOLVENT PENETRATION AND THERMAL PROPERTIES OF NATURAL RUBBER VULCANIZATES
Page Range: p.93-103
Author(s): Madani M; Badawy M M
File size: 143K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 13
Issue No: No. 1

Abstract
The influence of electron beam irradiation and step-cross-linking on the properties of high abrasion furnace carbon black loaded natural rubber vulcanisates is reported. Results of the tests concluded that the polymer-filler interaction for samples vulcanised by a one-step crosslinking process was high compared with that for those vulcanised via a two-step crosslinking process. The study also examined the effect on solvent (methyl ethyl ketone) penetration into the loaded vulcanisate. The maximum amount of solvent uptake decreased with the carbon black content and also with the irradiation dose, while the thermal conductivity increased because of an increase in crosslink density. The model proposed by Agari et al to calculate the effective thermal conductivity of the composite was tested as a function of electron beam irradiation dose and the step-crosslinking process. 41 refs.

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