DOI: 10.1016/j.jcou.2016.06.006
Scopus记录号: 2-s2.0-84982746212
论文题名: A novel method for toughening epoxy resin through CO2 fixation reaction
作者: Ghanbaralizadeh R. ; Bouhendi H. ; Kabiri K. ; Vafayan M.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 16 起始页码: 225
结束页码: 235
语种: 英语
英文关键词: Carbonate ring
; CO2 fixation
; Epoxy resin
; Mechanical properties
; Toughness
; Urethane bond
Scopus关键词: Carbon dioxide
; Carbonation
; Dynamic mechanical analysis
; Epoxy resins
; Esters
; Fracture
; Greenhouse gases
; Mechanical properties
; Thermoanalysis
; Toughness
; Critical stress intensity factor
; Cross-link densities
; D. dynamic mechanical thermal analyses (DMTA)
; Fracture toughness tests
; High performance polymer
; Innovative strategies
; Structure modification
; Urethane bonds
; Fracture toughness
英文摘要: For the first time, toughening of epoxy resin by CO2 fixation reaction, through a new mechanism has been investigated. Completely CO2 fixed modified epoxy resin was synthesized at different amounts of carbonation content under ambient condition. Increasing cyclic carbonate content led to an increase in the toughness of modified epoxy resin which was evaluated using the critical stress intensity factor (KIC) calculated by the results obtained from the fracture toughness test. Fracture enhancement was achieved without scarifying the strength. Toughening was obtained through three mechanisms; (I) cross-link density reduction, (II) uncured carbonate groups and (III) formation of the urethane bonds as a result of reaction between cyclic carbonate and amine curing agent. The characteristic of β-relaxation peaks were studied by dynamic mechanical thermal analysis (DMTA) test and confirmed the toughening effect in the modified resins. The correlation between carbonation content and toughness was provided and an innovative strategy for toughening epoxy resin, called "molecular structure modification (MSM)" was proposed. As a green technology, toughening by CO2, a greenhouse gas, has a potential for producing high performance polymers with economic benefits. © 2016 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52846
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Ghanbaralizadeh R.,Bouhendi H.,Kabiri K.,et al. A novel method for toughening epoxy resin through CO2 fixation reaction[J]. Journal of CO2 Utilization,2016-01-01,16