Hardness measurements of silicone rubber and polyurethane rubber cured by ionizing radiation

This work investigates the hardness of both silicone rubber and polyurethane rubber cured by ionizing radiation. Shore A hardness is used to characterize the subject elastomers in relation to the crosslinking process. Various formulations of both materials have been investigated in order to achieve...

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Bibliographic Details
Published inRadiation physics and chemistry (Oxford, England : 1993) Vol. 50; no. 6; pp. 607 - 610
Main Author Basfar, Ahmed Ali
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.12.1997
Elsevier
Subjects
Applied sciences
Exact sciences and technology
Physicochemistry of polymers
Polymers and radiations
Properties and characterization
Radiation dose
Gamma radiation
Radiochemical vulcanization
Mechanical properties
Hardness
Experimental study
Property processing relationship
Silicone elastomer
Polyurethane elastomer
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ISSN0969-806X
1879-0895
DOI10.1016/S0969-806X(97)00123-0

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Summary:This work investigates the hardness of both silicone rubber and polyurethane rubber cured by ionizing radiation. Shore A hardness is used to characterize the subject elastomers in relation to the crosslinking process. Various formulations of both materials have been investigated in order to achieve the optimum cure conditions. A small amount of a chemical curing agent has been incorporated in some formulations in order to reduce the required dose to achieve full cure conditions. Silicone rubber improved in hardness with increasing absorbed dose, whereas hardness remained constant over a broad range of absorbed doses for polyurethane rubber.
ISSN:0969-806X
1879-0895
DOI:10.1016/S0969-806X(97)00123-0