Adhesive hydrogel and preparation method thereof

Abstract

The invention provides adhesive hydrogel and a preparation method thereof, and relates to the field of polymer materials. The method comprises the following steps: (1) mixing a cationic monomer, a photoinitiator, an anionic component and water to obtain a precursor solution; (2) defoaming the precursor solution; (3) irradiating the precursor solution obtained in the step (2) with ultraviolet lightto initiate cationic monomer polymerization, and reacting the generated cationic monomer polymer with the anionic component to form the adhesive hydrogel; wherein in the step (1), the anionic component comprises glycosaminoglycan and derivatives thereof. The adhesive hydrogel disclosed by the invention is soft in texture, can be used for bonding various surfaces, is high in adhesion strength andhas self-healing performance, and the practicability of the gel is improved.

Description

technical field

[0001] The invention relates to the field of polymer materials, in particular to an adhesive hydrogel and a preparation method thereof. Background technique

[0002] In recent years, with the development of tissue engineering, biomedicine, wearable flexible devices and other fields, hydrogels have been shown in tissue adhesives and human-machine interfaces due to their advantages of softness and wetness, strong deformation ability and good biocompatibility. It has a good application prospect.

[0003] The surface of traditional hydrogel is smooth, and there is no adhesion force between the surface of inorganic and organic substances. To apply hydrogel to the surface of human tissue or electronic devices, adhesives are needed to bond the hydrogel to the substrate. However, most of the traditional adhesives are toxic and not suitable for use in contact with the skin, and they are not elastic and cannot deform with the movement of the adherend, thus limiting th...

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