Engineering of Tough Double Network Hydrogels

Double‐network (DN) hydrogel has intrinsic tough mechanical properties due to its unique two contrasting network structures. The research on DN hydrogel is a fast growing field, mainly focusing on network structures, formation, and interactions at the molecular level. In this trend article, we take a critical review at the important and latest research findings, current research challenges, and future research directions in the DN hydrogel...