| abstract |
The present invention provides controllable hydrogel actuator of a kind of deformation and preparation method thereof, the controllable hydrogel actuator of the deformation is made up of inorganic nano material, PNIPAM and water, inorganic nano material concentration distribution is uneven in a thickness direction, form asymmetrical heterojunction structure, in the in-plane direction, this uneven unsymmetric structure can arbitrary graphic pattern as desired, so as to realize the various reversible deformations of temperature triggered.N-isopropylacrylamide monomer, initiator and inorganic nano material are mixed, form uniform pregel, pregel is poured in rectangular die, a layer mask plate is covered on pregel surface, then evaporation section Moisture inducement inorganic nano material concentration skewness on the thickness direction of exposed region, then in-situ polymerization fixed pattern uneven texture, controllable hydrogel actuator is deformed so as to be formed.This method simple possible, it is easy to accomplish, the controllable hydrogel actuator of the deformation can be used for software robot, drug delivery, microfluid valve, artificial-muscle. |