Effect of bromination on the properties of ethylene-propylene-diene rubber in the presence of divinylbenzene (Record no. 57721)

MARC details
000 -LEADER
fixed length control field 01788nam a2200181Ia 4500
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Yoon J R
245 #0 - TITLE STATEMENT
Title Effect of bromination on the properties of ethylene-propylene-diene rubber in the presence of divinylbenzene
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher Rubber Chemistry and Technology
Year of publication 1995
300 ## - PHYSICAL DESCRIPTION
Number of Pages 824-835
520 ## - SUMMARY, ETC.
Summary, etc The curing behavior and vulcanizate properties of EPDM and brominated EPDM (BEPDM) were compared using a dicumyl peroxide curing system. The BEPDM displayed lower torque and crosslink density, but better tensile properties than the EPDM. In the presence of divinylbenzene (DVB) coagent, all vulcanizates, i.e, EPDM, BEPDM, and their blends with natural rubber, had improved tensile properties. At low DVB concentration, the filler effect of DVB on the modulus enhancement was noticed. At high and comparable DVB concentration, both the BEPDM and NR/BEPDM blend showed significantly higher modulus (M100) and tensile strength than their EPDM counterparts. The BEPDM was also found to have higher crosslink density and storage modulus (E) than the EPDM. This observation could be attributed to the better dispersion of DVB in the BEPDM and NR/BEPDM vulcanizates, as supported by TEM measurements. The TEM data is also consistent with the properties observed on the uncured mixes, in which the NR/BEPDM + DVB mix has favorable viscosity and die swell properties due to the more homogeneous DVB dispersion in the rubber phases. Thus, the bromination of EPDM has resulted in better processing and vulcanizate properties of the rubber and its blend with natural rubber.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Bromination
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Ethylene-propylene diene rubber
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Hashim A S
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Ikeda Y
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Khojiya S
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Journals
Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Shelving location Date acquired Serial Enumeration / chronology Koha item type
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