화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.27, No.8, 803-810, August, 2019
DOI10.1007/s13233-019-7110-8  Export Citation
Design of Coordination-Crosslinked Nitrile Rubber with Self-Healing and Reprocessing Ability
Zhi Fei Zhang1, Xue Tong Liu1, Kun Yang2, 1, †, and Shu Gao Zhao1, †
  • 1Key Laboratory of Rubber-plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao 266042, P. R. China
  • 2College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, P. R. China
E-mail:,
In this work, we describe a simple approach to design of a coordination crosslinked elastomer with extraordinary mechanical properties: self-healing and recycling abilities by introducing Co-cyano coordination into nitrile rubber(NBR) matrix. The formation of reversible coordination crosslink network results in good mechanical properties superior to conventional sulfur-cured NBR, such as high stretchability and toughness. The reversibility of metal-ligand bond endows the polymer with self-healing capability and recycling or reprocessing abilities by rearrangement at elevated temperature. The fully cut samples after self-healing or reprocessing can restore their original tensile strength. It is also worth noting that the reclaimed NBR exhibited higher modulus than its original sample due to the compensation of new metal-ligand bonds formed during heating. This study provides possibilities to extend lifetime, reshaping and recycling capabilities of commercial rubber and reduce toxicity and environmental issues caused by waste rubber.
Keywords:self-healing;coordination;nitrile rubber;toughness;recycling
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