针对传统水凝胶的复杂制备方法及样品综合性能不佳等问题，以纳米Fe₃O₄和聚丙烯酸为原料，利用仿生矿化法制备了磁响应自修复水凝胶。通过SEM、FT-IR、XRD、TG、磁性测量系统、旋转流变仪对所制备水凝胶的形貌结构及性能进行表征。结果表明，制得的水凝胶结构均匀，对磁场响应灵敏，自修复时间短且可反复自修复，水凝胶的磁性能和流变性能可通过调节纳米Fe₃O₄的添加量来调控。

Traditional preparation methods of hydrogel is complicated and the product samples have poor comprehensive performance.Biomimetic mineralization process is used to prepare magnetic response self-healing hydrogel from nano-Fe₃O₄ and polyacrylic acid.The structure and properties of the prepared hydrogel are characterized by scanning electron microscope,Fourier transform infrared spectroscopy,X-ray diffraction,magnetic property measurement system and rheometer.The results show that the as-prepared hydrogel has a uniform structure,is sensitive to external magnetic fields,and can self-heal repeatedly within a short time about 5 minutes.The magnetic property and rheology of the hydrogel can be regulated by adjusting the adding amount of nano-Fe₃O₄.

王光星(1995-),男,硕士研究生,研究方向为仿生矿化法制备有机无机复合材料,gxwang95@mail.ustc.edu.cn