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The role of thiophosphoryl disulfide on the co‐cure of CR‐EPDM blends: effect of white fillers
Author(s) -
Das A.,
Debnath S. C.,
De D.,
Naskar N.,
Basu D. K.
Publication year - 2004
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.508
Subject(s) - vulcanization , materials science , natural rubber , ethylene propylene rubber , composite material , elastomer , epdm rubber , scanning electron microscope , neoprene , disulfide bond , copolymer , polymer chemistry , polymer , chemistry , biochemistry
Bis(diisopropyl) thiophosphoryl disulfide (DIPDIS) being a rubber accelerator has a definite role as a coupling agent in the silica filled polychloroprene rubber with ethylene propylene diene rubber (CR‐EPDM) blends. Diethylene glycol can further improve the beneficial effect of DIPDIS in silica filled CR‐EPDM blends. Two‐stage vulcanization technique further improves the physical properties of silica filled CR‐EPDM blends. The results have been compared with non‐reinforcing calcium carbonate filled systems. Scanning electron microscopy (SEM) studies further indicate the coherency and homogeneity in the silica filled CR‐EPDM blend vulcanizates obtained from this two‐stage process. Copyright © 2004 John Wiley & Sons, Ltd.