Multiscale Energy Dissipation Mechanism in Tough and Self-Healing Hydrogels
Kunpeng CuiFaculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, JapanTao Lin SunFaculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, JapanXiaobin LiangDepartment of Chemical Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, JapanK. NakajimaDepartment of Chemical Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8552, JapanYa Nan YeGraduate School of Life Science, Hokkaido University, Sapporo 060-0810, JapanLiang ChenGraduate School of Life Science, Hokkaido University, Sapporo 060-0810, JapanTakayuki KurokawaFaculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, JapanJian Ping GongFaculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan
2018en
ABI
Annotatsiya
Understanding the energy dissipation mechanism during deformation is essential for the design and application of tough soft materials. We show that, in a class of tough and self-healing polyampholyte hydrogels, a bicontinuous network structure, consisting of a hard network and a soft network, is formed, independently of the chemical details of the hydrogels. Multiscale internal rupture processes, in which the double-network effect plays an important role, are found to be responsible for the large energy dissipation of these hydrogels.
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