Concise and Efficient Self-Healing Cross-Linked Polyurethanes via the Blocking/Deblocking Reaction of Oxime Urethanes
文献类型：期刊论文
| 作者 | Xu, Bowen2; Han, Feilong2; Pei, Xuqiang2; Zhang, Suojiang1; Zhao, Jingbo2 |
| 刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
 |
| 出版日期 | 2021-08-04 |
| 卷号 | 60期号:30页码:11095-11105 |
| ISSN号 | 0888-5885 |
| DOI | 10.1021/acs.iecr.1c01446 |
| 英文摘要 | The 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. |
| WOS关键词 | DIELS-ALDER ; POLYMERS ; ELASTOMER |
| 资助项目 | Science Foundation of Aeronautics of China[201718S9001] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000683727000019 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Science Foundation of Aeronautics of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/49886]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhang, Suojiang; Zhao, Jingbo |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Beijing Univ Chem Technol, Key Lab Carbon Fiber & Funct Polymers, Beijing 100029, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。