Preparation method of poly(N-isopropyl acrylamide)/graphene composite materials with photo-thermal responsiveness

Abstract

The invention discloses a preparation method of poly(N-isopropyl acrylamide) / graphene composite materials with photo-thermal responsiveness. The method comprises steps of firstly, adding the poly(N-isopropyl acrylamide) into graphene dispersion liquid; then, adding eight glycidol-based polyhedron polysilsesquioxane and 2-ethyl-4-methylimidazole; carrying out uniform stirring and dispersion, acquiring electricity texture liquid; through an electrostatic spinning method, obtaining a spinning thin film containing poly(N-isopropyl acrylamide) / graphene; and after crosslinking, obtaining composite materials with the photo-thermal responsiveness. According to the invention, based on the electrostatic spinning method, materials are prepared; the material ratio is easy to modulate and control; thematerials are easy to prepare; the obtained materials have advantages of high response speed and obvious response feature change and favorable application prospects.

Description

technical field [0001] The invention belongs to the technical field of organic / inorganic composite functional materials, and in particular relates to a preparation method of a poly(N-isopropylacrylamide) / graphene composite material with photothermal responsiveness. Background technique [0002] The synergistic effect of polymers and nanostructured materials has led to the generation of a series of new composite materials, and because of their unique properties, attracting people to further research in many fields. Among them, the polymer component plays a key role in tuning the properties of inorganic nanomaterials related to the fields of optics, catalysis, electronics, sensing and biomedicine. These composite materials have a higher degree of chemical or physical complexity than the individual components and also exhibit different properties. When these materials are affected by external stimuli, such as changes in temperature, pH, electric field, etc., their volume and s...

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Problems solved by technology

[0004] As far as the current response material is concerned, gold rod is a very common material. Although its response speed is fast, it also has some disadvantages, such as high price, and at the same time, due to its high heat transfer rate, it is difficult to control the reaction rate. If the local temperature is too high, it will cause irreversible damage to the material

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