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Luo Y, Tan M, Shin J, Zhang C, Yang S, Song N, Zhang W, Jiao Y, Xie J, Geng Z, He J, Xia M, Xu J, Yang R. Ultrarobust, Self-Healing Poly(urethane-urea) Elastomer with Superior Tensile Strength and Intrinsic Flame Retardancy Enabled by Coordination Cross-Linking. ACS APPLIED MATERIALS & INTERFACES 2024; 16:43979-43990. [PMID: 39116414 DOI: 10.1021/acsami.4c08185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
Poly(urethane-urea) elastomers (PUUEs) have gained significant attention recently due to their growing demand in electronic skin, wearable electronic devices, and aerospace applications. The practical implementation of these elastomers necessitates many exceptional properties to ensure robust and safe utilization. However, achieving an optimal balance between high mechanical strength, good self-healing at moderate temperatures, and efficient flame retardancy for poly(urethane-urea) elastomers remains a formidable challenge. In this study, we incorporated metal coordination bonds and flame-retarding phosphinate groups into the design of poly(urethane-urea) simultaneously, resulting in a high-strength, self-healing, and flame-retardant elastomer, termed PNPU-2%Zn. Additional supramolecular cross-links and plasticizing effects of phosphinate-endowed PUUEs with relatively remarkable tensile strength (20.9 MPa), high elastic modulus (10.8 MPa), and exceptional self-healing efficiency (above 97%). Besides, PNPU-2%Zn possessed self-extinguishing characteristics with a limiting oxygen index (LOI) of 26.5%. Such an elastomer with superior properties can resist both mechanical fracture and fire hazards, providing insights into the development of robust and high-performance components for applications in wearable electronic devices.
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Affiliation(s)
- Yuxin Luo
- National Engineering Technology Research Center of Flame-Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Meiyan Tan
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jaeman Shin
- Department of Materials Science and Engineering, Soongsil University, Hanseong, Seoul 06978, South Korea
- Department of Green Chemistry and Materials Engineering, Soongsil University, Hanseong, Seoul 06978, South Korea
| | - Cheng Zhang
- Australian Institute for Bioengineering and Nanotechnology and The Centre for Advanced Imaging, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Shiyuan Yang
- Department of Ultrasound, Peking University Third Hospital, Beijing 100191, China
| | - Ningning Song
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Wenchao Zhang
- National Engineering Technology Research Center of Flame-Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yunhong Jiao
- College of Chemistry and Environmental Science, Hebei University, Beijing, Hebei 071002, PR China
| | - Jixing Xie
- College of Chemistry and Environmental Science, Hebei University, Beijing, Hebei 071002, PR China
| | - Zhishuai Geng
- National Engineering Technology Research Center of Flame-Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jiyu He
- National Engineering Technology Research Center of Flame-Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Min Xia
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jianzhong Xu
- College of Chemistry and Environmental Science, Hebei University, Beijing, Hebei 071002, PR China
| | - Rongjie Yang
- National Engineering Technology Research Center of Flame-Retardant Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
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Zhang A, Li J, Fan H, Xiang J, Wang L, Yan J. Effect of mechanical properties on the self‐healing behavior of waterborne polyurethane coatings. J Appl Polym Sci 2022. [DOI: 10.1002/app.52364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Aiqin Zhang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
| | - Jing Li
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
| | - Haojun Fan
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
| | - Jun Xiang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
| | - Li Wang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
| | - Jun Yan
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
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