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Effects of peroxide and gamma radiation on properties of devulcanized rubber/polypropylene/ethylene propylene diene monomer formulation
Author(s) -
Hassan Medhat M.,
Badway Nagwa A.,
Elnaggar Mona Y.,
Hegazy ElSayed A.
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.40611
Subject(s) - vulcanization , materials science , polypropylene , ultimate tensile strength , natural rubber , monomer , thermogravimetric analysis , composite material , diene , epdm rubber , ethylene propylene rubber , polymer chemistry , peroxide , elongation , chemical engineering , copolymer , polymer , chemistry , organic chemistry , engineering
Mechanical and thermal properties of devulcanized rubber (DR)/polypropylene (PP)/ethylene propylene diene monomer blends (EPDM) were studied at various concentrations of dicumyl peroxide (DCP) and gamma radiation doses. The blends showed improved mechanical properties for vulcanized sample. The coupling of DR/PP/EPDM with different proportions of DCP was investigated by X‐ray diffraction and scanning electron microscopy techniques. Evaluation of the developed blends, unirradiated and gamma irradiated, was carried out using elastic modulus, tensile strength, elongation at break, thermogravimetric analysis, kinetic analysis, and DSC measurements. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40611.