Nano composite coating and preparation method thereof

Abstract

The invention provides a nano composite coating and a preparation method thereof. The nano composite coating comprises the following components in parts by weight: 60-80 parts of star-shaped acrylic resin, 1-2 parts of nano silicon dioxide, 3-5 parts of nano particles, 0.5-1 part of a dispersing agent, Anjeka 6030 serving as the dispersing agent and 1-2 parts of hexamethylenediamine. Wherein the star-shaped acrylic resin is prepared by mixing and reacting an acrylic monomer, ethyl 2-bromoisovalerate, copper bromide, a ligand, stannous octoate and a solvent; the star-shaped acrylic resin is prepared from the following raw materials in parts by weight: 20 to 30 parts of acrylic monomer, 1.5 to 2 parts of ethyl 2-bromoisovalerate, 0.5 to 1 part of copper bromide, 0.5 to 1 part of the ligand,0.5 to 1 part of stannous octoate and 50 to 65 parts of the solvent. By adding the nanoparticles, the hydrophobicity and the self-cleaning property of the coating are improved; and by adding nano silicon dioxide, the impact resistance and weather resistance of the coating are improved.

Description

technical field [0001] The invention relates to the technical field of nanocomposite coatings, in particular to a nanocomposite coating and a preparation method thereof. Background technique [0002] Nanocomposite materials are based on resin, rubber, ceramic and metal as the continuous phase, and nano-sized metals, semiconductors, rigid particles and other inorganic particles, fibers, carbon nanotubes and other star-shaped agents as the dispersed phase. Methods The star-shaped agent is uniformly dispersed in the matrix material to form a composite system containing nanometer-sized materials, and the system material is called nanocomposite material. [0003] Composite materials are widely used in aerospace, national defense, transportation, sports and other fields due to their excellent comprehensive performance, especially the designability of their performance. Nanocomposite materials are the most attractive part of them, and they are developing rapidly nowadays. The deve...

AI Technical Summary

Problems solved by technology

Due to the high viscosity of the nanocomposite coatings in the prior art, after adding additives, some additives may entangle the polymer chains in the composite coatings, further increasing the viscosity of the coatings, and excessive viscosity reduces the workability of the coatings; in addition , some nanocomposite coatings pay too much attention to the impact resistance of the coating and ignore the hydrophobicity and self-cleaning property of the coating itself

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