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Zinc sulfonated EPDM of high (75 wt%) ethylene content behaves as an ionic thermoplastic elastomer. Diethylene glycol plasticizes the ionic domains of zinc sulfonated EPDM, without affecting the hydrocarbon backbone. Studies include measurement of physical properties, processability studies in a Monsanto processability tester (MPT), dynamic mechanical analyses (d.m.a.) and dielectric thermal analyses...
Incorporation of up to 30 phr of high abrasion furnace (HAF) carbon black into a thermoplastic elastomer of composition 100 phr maleated EPDM rubber, 10 phr ZnO, 1 phr stearic acid and 30 phr zinc stearate, improves its physical properties like modulus and tear resistance. While the glass-rubber transition temperature (T g ) of the thermoplastic elastomer occurring around -37°C remains unaltered...
Incorporation of up to 20 phr of precipitated silica filler into a thermoplastic elastomer of composition 100 phr maleated EPDM rubber, 10 phr zinc oxide, 1 phr stearic acid, 30 phr zinc stearate, results in an improvement of physical properties such as modulus, tensile strength and tear resistance. While the glass-rubber transition temperature (T g ) of the thermoplastic elastomer occurring...
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