Preparation method of photoresponseive cellulose nanocrystalline/fluorine-containing polyacrylate self-repairing material

Abstract

The invention discloses a p photoresponseive cellulose nanocrystalline / fluorine-containing polyacrylate self-repairing material. A preparation method specifically comprises the following steps: step 1, preparing a Pickering emulsion; wherein uniformly mixing photoresponsive amphiphilic block copolymer graft-modified cellulose nanocrystalline, water and a mixed monomer according to a mass ratio of(0.01-0.03): (2-60): (1-3) to obtain the Pickering emulsion; and 2, preparing the photoresponsive cellulose nanocrystalline / fluorine-containing polyacrylate composite emulsion. The photoresponsive cellulose nanocrystalline / fluorine-containing polyacrylate self-repairing material disclosed by the invention has the characteristic of self-repairing.

Description

technical field

[0001] The invention belongs to the technical field of preparation methods of polymer materials, and in particular relates to a preparation method of a photoresponsive cellulose nanocrystal / fluorine-containing polyacrylate self-repairing material. Background technique

[0002] During the construction and use of polymer materials, due to stimuli such as temperature changes in the environment, ultraviolet radiation, and mechanical stress, cracks or defects are prone to occur inside the material, reducing the mechanical properties of the material, and even making the material lose its original function. Inspired by the self-healing function of organisms, people have designed and prepared artificial self-healing materials that can repair damage to improve the service life and functional stability of materials.

[0003] According to whether embedding of repair agent is needed in the preparation process of self-healing materials, self-healing materials can be divid...

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