Preparation method and application of hydrogel material with self-healing, strain sensitivity and electromagnetic interference shielding functions

The invention discloses a preparation method and application of a hydrogel material with self-healing, strain sensitivity and electromagnetic interference shielding functions, and relates to the technical field of conductive hydrogel preparation. The hydrogel material is prepared by mixing polyvinyl alcohol, borax, acrylic acid, Al < 3 + > salt, MXene and nickel particles and carrying out heat treatment on the obtained mixture. The hydrogel is simple in preparation process, has good self-healing performance, strain sensitivity and electromagnetic shielding performance, and has excellent application prospects in the fields of flexible wearable sensors and electromagnetic shielding. 本发明公开了一种兼具自愈、应变敏感性以及电磁干扰屏蔽的水凝胶材料的制备方法与应用，涉及导电水凝胶制备技术领域。本发明的水凝胶材料通过将聚乙烯醇、硼砂、丙烯酸、Al3+盐、MXene和镍粒混合，并对得到的混合物进行热处理制备得到。本发明的水凝胶制备过程简单，且兼具良好的自愈性、应变敏感性和电磁屏蔽性能，在柔性可穿戴传感器、电磁屏蔽领域有优异的应用前景。