Polyacrylamide hydrogel, its preparation method and application

Abstract

The application discloses a kind of polyacrylamide hydrogel and its preparation method and application, the polyacrylamide hydrogel, it is characterized in that, including the hydrolyzed polyacrylamide homopolymer or copolymer hydrogel;Carboxyl in the hydrolyzed hydrogel is coordinated with metal ion to form coordination unit;The metal ion includes at least one of Zr 4+ 、Ti 4+ 、Hf 4+ And Sn 4+ In the hydrogel of the application, a large number of metal ions form metal-coordination crosslinking in the gel network, there is no significant phase interface to refract visible light, the light transmittance is high, the introduction of metal ion and the proton produced by its hydrolysis make the hydrogel of the application have high conductivity;And the existence of strong coordination crosslinking point in polyacrylamide hydrogel network to bear stress transfer, in turn have strong toughness, so that the polyacrylamide hydrogel of the application has high transparency, strong toughness and high conductivity.

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