High-dispersivity super-amphiphobic microsphere and self-cleaning epoxy resin paint prepared from same

Abstract

The invention discloses a high-dispersivity super-amphiphobic microsphere and self-cleaning epoxy resin paint prepared from the same. The high-dispersivity super-amphiphobic microsphere is prepared by the following methods that: microspheres, alkali amine catalysts, alpha-halogen acyl bromide or alpha-halogen acyl chloride are mixed for reaction, and microspheres with the surfaces grafted with atom transfer radical polymerization (ATRP) initiators are obtained; the microspheres with the surfaces grafted with the atom transfer radical polymerization (ATRP) initiators are subjected to ATRP random copolymerization or block polymerization reaction with fluorine-containing solvents, and microspheres with the surfaces grafted with monomers F and monomers D capable of taking D-A reaction are obtained; and the microspheres and high-dispersivity substances with compounds A as end bases are enabled to take reaction to obtain the high-dispersivity super-amphiphobic microsphere. According to the high-dispersivity super-amphiphobic microsphere and the self-cleaning epoxy resin paint, polymers capable of being dispersed into the epoxy resin paint are introduced on the super-amphiphobic microsphere interface, so the high-dispersivity super-amphiphobic microsphere can be directly dispersed into the epoxy resin paint, the problems of difficult dispersing and poor bonding force in the use process of the existing uper-amphiphobic microsphere are solved, and the poisonous fluorine-containing solvent adoption is also avoided.

Description

technical field [0001] The invention belongs to the field of polymer superamphiphobic materials, in particular to a highly dispersed superamphiphobic microsphere and a preparation method thereof, and a self-cleaning epoxy resin coating prepared from the superamphiphobic microsphere. Background technique [0002] Nanomaterials and micro-nano composite materials, especially micro-nano composite materials with special wettability, are important directions in the scientific research and practical application of nanomaterials. Wherein, the superhydrophobic surface refers to those solid surfaces whose surface static contact angle is greater than 150°, and this special state (property) of the solid surface is called the superhydrophobic state (property). If the static contact angles of water and oil on a surface are both greater than 150° and the rolling angles are less than 5°, the interface can be called a superamphiphobic interface; since the interface has the function of hydrop...

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Problems solved by technology

[0012] In order to overcome the shortcomings and deficiencies of existing superamphiphobic self-cleaning materials that need to contain fluorine-containing solvents, have weak adhesion, and cannot be dispersed on the surface of epoxy resin, the primary purpose of the present invention is to provide a highly dispersed superamphiphobic Microspheres, the highly dispersed super-amphiphobic microspheres are grafted on the surface of ordinary fluorinated microspheres with a fluoropolymer that can be dispersed in epoxy resin, so that the super-amphiphobic microspheres do not need to contain fluorine Solvent can realize its dispersion in epoxy resin

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