23 Jul High-stretchability and self-repairing hydrogel and preparation method thereof
Abstract
The invention discloses a hydrogel with characteristics of high stretchability and rapid self-repairing performance at a room temperature, wherein the hydrogel is prepared by carrying out free radicalpolymerization on the following raw materials by weight: 4.5-5 parts of a monomer acrylamide, 1-1.5 parts of dimethylaminoethyl methacrylate, 0.01-0.03 part of a water-based cross-linking agent, and0.001-0.01 part of an initiator in water, wherein the water-based cross-linking agent is a water-soluble hexamethylene diisocyanate tripolymer. According to the present invention, the prepared hydrogel can overcome the technical defects of low strength, poor environmental responsiveness and poor temperature resistance of the self-repairing hydrogel in the prior art, has the high stretching multiple of more than 15 times and the self-repairing rate of up to 90%, has advantages of simple preparation process, rapid molding and good light transmittance, and has wide application prospects in the fields of medicine and tissue engineering.
Year: 2019
Country: CN
Doc No: 110540659