Preparation and property of dual crosslinking self-healing hydrogel used hydrophobic association and montmorillonite
Wang Fei, Ye Jin, Dong Weifu, Li Xiaojie, Shi Dongjian, Chen Mingqing
The Key Laboratory of Food Colloids and Biotechnology,Ministry of Education,School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122;
Abstract: Novel dual physical crosslinked self-healing hydrogels were successfully prepared by in-situ micellar copolymerization with different content of montmorillonite.They maximum mechanical strength reached 230.7kPa and the elongation at break kept above 2500%.Its energy was dissipated during the deformation of hydrogels.The introduction of montmorillonite improved the energy dissipation.Moreover,hydrogels had excellent self-recovery and fatigue resistance properties.When the hydrogels were stretched to 1500%,they recovered to its original state in twenty minutes.Specially,energy dissipation remained without changed even repeated six times.Furthermore,the hydrogels showed self-healing property after cut into two pieces.The mechanical strength could be repaired to more than 70% of the original hydrogels.
汪飞, 叶瑾, 东为富, 李小杰, 施冬健, 陈明清. 蒙脱土/疏水缔合双交联自修复凝胶的制备及性能研究[J]. 化工新型材料, 2018, 46(7): 177-181.
Wang Fei, Ye Jin, Dong Weifu, Li Xiaojie, Shi Dongjian, Chen Mingqing. Preparation and property of dual crosslinking self-healing hydrogel used hydrophobic association and montmorillonite. New Chemical Materials, 2018, 46(7): 177-181.
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