DOI: 10.1016/j.scib.2020.03.008
论文题名: Design of next-generation cross-linking structure for elastomers toward green process and a real recycling loop
作者: Zhang G. ; Feng H. ; Liang K. ; Wang Z. ; Li X. ; Zhou X. ; Guo B. ; Zhang L.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期: 11 起始页码: 889
结束页码: 898
语种: 英语
中文关键词: Carboxylated rubber
; Epoxidized soybean oil
; Green cross-linking
; Recycling
英文关键词: Additives
; Cost effectiveness
; Crosslinking
; Curing
; Density (specific gravity)
; Efficiency
; Esters
; II-VI semiconductors
; Olefins
; Petroleum additives
; Plastics
; Recycling
; Rubber industry
; Soybean oil
; Toxic materials
; Volatile organic compounds
; Zinc oxide
; Carboxylated nitrile rubber
; Cost-effective approach
; Cross-linked elastomers
; Cross-linking structures
; Epoxidized soybean oil
; Green cross-linking
; Mechanical performance
; Plasticization effects
; Rubber
英文摘要: Currently adopted cross-linking methods in rubber industry are suffering from variable persistent issues, including the utilization of toxic curing packages, release of volatile organic compounds (VOCs) and difficulties in the recycling of end-of-life materials. It is of great importance to explore a green cross-linking strategy in the area. Herein, we report a new “green” strategy based on hydrolyzable ester cross-links for cross-linking diene-typed elastomers. As a proof of concept, a commercial carboxylated nitrile rubber (XNBR) is efficiently cross-linked by a bio-based agent, epoxidized soybean oil (ESO), without any toxic additives. ESO exhibits an excellent plasticization effect and excellent scorch safety for XNBR. The cross-linking density and mechanical properties of the ESO-cured XNBR can be manipulated in a wide range by changing simply varying the content of ESO. In addition, zinc oxide (ZnO) performs as a catalyst to accelerate the epoxide opening reaction and improve the cross-linking efficiency, serving as reinforcement points to enhance the overall mechanical properties of the ESO-cured XNBR. Furthermore, the end-of-life elastomer materials demonstrate a closed-loop recovery by selectively cleaving the ester bonds, resulting in very high recovery of the mechanical performance of the recycled composites. This strategy provides an unprecedented green avenue to cross-link diene elastomers and a cost-effective approach to further recycle the obtained cross-linked elastomers at high efficiency. © 2020 Science China Press Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170147
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China; Department of Polymer Materials and Engineering, South China University of Technology, Guangzhou, 510640, China
Recommended Citation:
Zhang G.,Feng H.,Liang K.,et al. Design of next-generation cross-linking structure for elastomers toward green process and a real recycling loop[J]. Science Bulletin,2020-01-01,65(11)