期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 43, 期 39, 页码 18392-18402出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.08.031
关键词
Rubber; Crosslink; Swelling; Tensile; Decompression; O-ring
A series of unfilled acrylonitrile butadiene rubber (NBR) composites, which consists of several types of NBR with acrylonitrile (AN) monomer unit ratio (X-AN) and sulfur or dicumyl peroxide (DPO) as a vulcanizer, were exposed to 90 MPa hydrogen gas to measure the saturated hydrogen content: C.H(0) and the volume change ratio when the sample volume is the maximum: V-MAX/V-0. The aim of this paper is to reveal the dominant characteristics for C.H(0) and V-MAX/V-0 of unfilled NBR composites. Mechanical properties, X-AN, the molecular weight of the number average molecular weight between the effective crosslinks (M-ef), the molecular weight between the chemical crosslink (M-C) and the fractional free volume (FFV) were employed to examine the relationship between the characteristics and C.H(0) and V-MAX/V-0 of the NBR composites. Judging from the results of the comparisons of C.H(0) and V-MAX/V-0 with X-AN, M-ef, and FFV, it is revealed that C.H(0) and V-MAX/V-0 were dominantly correlate with FFV and MC, respectively. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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