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Studies on dynamic behaviour and flow properties of HDPE/EPDM blends by torque rheometer
Author(s) -
Chandra R.,
Mishra S.,
Parida T. R.
Publication year - 1995
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1995.210370209
Subject(s) - materials science , high density polyethylene , rheometer , composite material , ultimate tensile strength , mixing (physics) , izod impact strength test , flow (mathematics) , melt flow index , rheology , polyethylene , polymer , mechanics , copolymer , physics , quantum mechanics
The effect of blend ratio on the crosslinking characteristics and dynamic elastic properties of HDPE/EPDM blends was studied by a torque rheometer. The crosslink density (a measure of tensile strength) first increases and then decrease with increase in EPDM content. The dynamic elastic property (a measure of impact strength) also showed a peculiar trend. Both studies showed that less than 40 parts loading of EPDM gave the best mechanical properties. In another study the flow activation energy was calculated by temperature programming, which gave the value of processing temperatures (cold mixing, hot mixing).