IHEP OpenIR  > 北京同步辐射装置
Crystallization, structure, and enhanced mechanical property of ethylene-octene elastomer crosslinked with dicumyl peroxide
BSRF用户
2021
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
EISSN1097-4628
Volume138Issue:27Pages:e50651
SubtypeArticle
AbstractCrosslinking of polyolefin elastomer (POE, ENGAGE (TM) 8480) with Dicumyl Peroxide (DCP) can have effects on its crystallization dynamics, crystal structure, and properties. The POE crosslinked uniformly has significantly lower crystalline ability than the one with only amorphous phase crosslinked, which, in turn, has weaker crystalline ability than neat POE. The crystallinity and melting point depend on how the POE is crosslinked. The neat POE and POE crosslinked in amorphous phase only, are investigated with DSC and in-situ tensile/synchrotron radiation (WAXD/SAXS). In situ tensile/synchrotron X-ray during a uniaxial stretching process indicates that severe crystal fragmentation is observed at a strain around 45%, and with further increase in strain. The stress in the crosslinked POE is significantly larger than neat POE. For both samples, crystal orientation increases sharply within the strain range up to 88% where orientation-induced new crystals aligned in stretching direction are observed. The long period increases more in stretching direction for the crosslinked POE, consistent with larger stress in this sample, and the stress difference is more pronounced at large strains (27.3 vs. 10.9 MPa at a strain 435%). Permanent set of the crosslinked POE is smaller, consistent with less oriented crystals observed after the test for permanent set.
DOI10.1002/app.50651
Indexed BySCI
Language英语
WOS Research AreaPolymer Science
WOS SubjectPolymer Science
WOS IDWOS:000623187200001
ItemNoBSRF00914
beamline1W2A
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/293682
Collection北京同步辐射装置
Recommended Citation
GB/T 7714
BSRF用户. Crystallization, structure, and enhanced mechanical property of ethylene-octene elastomer crosslinked with dicumyl peroxide[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2021,138(27):e50651.
APA BSRF用户.(2021).Crystallization, structure, and enhanced mechanical property of ethylene-octene elastomer crosslinked with dicumyl peroxide.JOURNAL OF APPLIED POLYMER SCIENCE,138(27),e50651.
MLA BSRF用户."Crystallization, structure, and enhanced mechanical property of ethylene-octene elastomer crosslinked with dicumyl peroxide".JOURNAL OF APPLIED POLYMER SCIENCE 138.27(2021):e50651.
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