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Investigation of “Zn 2+ salt‐bondings” cross linked ENR with shape memory effect via ionic interactions
Author(s) -
Zhang Yake,
Li Hao,
Li Caili,
Chen Xian,
Lesser Alan
Publication year - 2019
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24989
Subject(s) - materials science , vulcanization , salt (chemistry) , elastomer , fabrication , ionic bonding , natural rubber , ionomer , zinc , metal , chemical engineering , composite material , ion , polymer , metallurgy , organic chemistry , chemistry , medicine , alternative medicine , pathology , engineering , copolymer
In this article, the method of using zinc ionomer as the vulcanizing agent and the addition of metal salt to form Zn 2+ salt‐bondings is proposed. The formation of Zn 2+ salt‐bondings in the elastomer causes further self‐aggregation of ion pair Zn 2+ , resulting in ionic cross linking network. This cross‐linking is very effective in increasing the strength of rubber. Additionally, dissipated energy during the loading‐unloading process also increases, and more importantly, T g increases with the higher cross‐link density. The tunable and comparatively broad tanδ peak makes such materials potentially useful in the fabrication of damping material with multishape memory properties. Therefore this study opens up an efficient and easy way to improve the performance of rubber and functional applications. POLYM. ENG. SCI., 59:E367–E374, 2019. © 2018 Society of Plastics Engineers