Room-temperature self-healing tough nanocomposite hydrogel crosslinked by zirconium hydroxide nanoparticles

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• 作者：Haoyang Jiang ; Gongzheng Zhang ; Xianqi Feng ; Huanqing Liu ; Feibo Li ; Muqun Wang ; Huanjun Li ; ^{lihj@bit.edu.cn}
• 关键词：Self-healing ; Nanocomposite hydrogel ; Zirconium hydroxide nanoparticles ; High strength
• 刊名：Composites Science and Technology
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：140
• 期：Complete
• 页码：54-62
• 全文大小：2849 K
• 卷排序：140

文摘

Tough hydrogels with excellent self-healing properties at room temperature are of great importance for their potential applications in biomedical fields. Here, we demonstrate a design of novel zirconium hydroxide crosslinking nanocomposite hydrogel that combine high toughness (compressive strength of 36.6 MPa and tensile strength of 404.3 KPa) and self-healing efficiency (86%) at ambient condition. The Zr-NC gel was synthesized by the random copolymerization of 2-acrylamido-2-methyl propane sulfonic acid (AMPS) and acrylamide (AM) through a facile preparation. The designed hydrogen-bonding network can be tuned through changing the molar ratio and zirconium hydroxide. This novel Zr-NC gel will open an avenue for the healable artificial cartilage and tissue engineering.