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Improved mechanical properties of NR/EPDM and NR/ butyl blends by precuring EPDM and butyl
Author(s) -
Suma N.,
Joseph Rani,
George K. E.
Publication year - 1993
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.1993.070490318
Subject(s) - isobutylene , butyl rubber , epdm rubber , natural rubber , ethylene propylene rubber , compounding , isoprene , materials science , vulcanization , composite material , curing (chemistry) , elastomer , polymer chemistry , copolymer , polymer
Ethylene‐propylene‐diene rubber (EPDM) and isobutylene‐isoprene rubber (IIR) were compounded, precured to a low degree, and then were blended with natural rubber (NR). The compounding ingredients for NR were then added and the final curing was done. NR/EPDM and NR/IIR blends, prepared using this method, were found to possess much improved mechanical properties as compared to their conventional counterparts. The optimum precuring crosslink density that has to be given to the EPDM and IIR phases has been determined. © 1993 John Wiley & Sons, Inc.