CAS OpenIR
Concise and Efficient Self-Healing Cross-Linked Polyurethanes via the Blocking/Deblocking Reaction of Oxime Urethanes
Xu, Bowen1; Han, Feilong1; Pei, Xuqiang1; Zhang, Suojiang2; Zhao, Jingbo1
2021-08-04
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume60Issue:30Pages:11095-11105
AbstractThe development of self-healing polymers can extend the service life of polymer materials. However, it is still a challenge to prepare a polyurethane with high healing efficiency and maximum retention of the properties of polyurethane itself. In this research, we proposed a new scheme for the industrial production of self-healing polyurethane and successfully synthesized a self-healing polyurethane using diacetyl oxime as the chain extender and triethanolamine as the cross-linking agent. Oxime-blocked isocyanates deblock at a higher temperature and regenerate oxime urethanes at a lower temperature, thereby achieving thermal reversibility and self-healing due to the concise and efficient thermal reversible reaction of oxime urethanes. Fourier transform infrared and differential scanning calorimetry experiments confirmed that the oxime urethanes in the polyurethane deblock efficiently at around 90 degrees C and re-block after the temperature is lowered. The process can be cycled at least three times. Microscopic observation confirmed that the cracks disappeared within 60-90 min at 90 degrees C. The tensile test shows that the synthetic DiO-c-PU has a self-healing efficiency of over 94% at 90 degrees C for 1.5 h, which is more efficient. From the results, it appears that DiO-c-PU has good self-healing properties.
DOI10.1021/acs.iecr.1c01446
Language英语
WOS KeywordDIELS-ALDER ; POLYMERS ; ELASTOMER
Funding ProjectScience Foundation of Aeronautics of China[201718S9001]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationScience Foundation of Aeronautics of China
WOS IDWOS:000683727000019
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49887
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Suojiang; Zhao, Jingbo
Affiliation1.Beijing Univ Chem Technol, Key Lab Carbon Fiber & Funct Polymers, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xu, Bowen,Han, Feilong,Pei, Xuqiang,et al. Concise and Efficient Self-Healing Cross-Linked Polyurethanes via the Blocking/Deblocking Reaction of Oxime Urethanes[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2021,60(30):11095-11105.
APA Xu, Bowen,Han, Feilong,Pei, Xuqiang,Zhang, Suojiang,&Zhao, Jingbo.(2021).Concise and Efficient Self-Healing Cross-Linked Polyurethanes via the Blocking/Deblocking Reaction of Oxime Urethanes.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,60(30),11095-11105.
MLA Xu, Bowen,et al."Concise and Efficient Self-Healing Cross-Linked Polyurethanes via the Blocking/Deblocking Reaction of Oxime Urethanes".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 60.30(2021):11095-11105.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xu, Bowen]'s Articles
[Han, Feilong]'s Articles
[Pei, Xuqiang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Bowen]'s Articles
[Han, Feilong]'s Articles
[Pei, Xuqiang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Bowen]'s Articles
[Han, Feilong]'s Articles
[Pei, Xuqiang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.