Composite nanometer anti-aging fireproof coating

Abstract

The invention discloses a composite nanometer anti-aging fireproof coating. The composite nanometer anti-aging fireproof coating comprises, by weight, 30-40 parts of a copolymer emulsion, 25-35 partsof an ethylene-vinyl acetate copolymer, 12-15 parts of a cross-linked acrylate emulsion, 3-5 parts of cobalt naphthenate, 6-8 parts of propylene glycol, 5-9 parts of a filler, 9-14 parts of inorganicnano-powder and 2-4 parts of a film-forming aid. Compared with the coating without an inorganic nanocomposite material, the composite nanometer anti-aging fireproof coating has aging resistance improved by 50-120%. The composite nanometer anti-aging fireproof coating has excellent fireproof effects, good impact resistance, artificial aging resistance and strong adhesion. Through use of nano-silica, the composite nanometer anti-aging fireproof coating has lasting antibacterial effects. The composite nanometer anti-aging fireproof coating improves the washing resistance, water resistance and anti-sticking property by 1-5 times than those of the coating without an inorganic nanocomposite material.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to composite nanometer anti-aging fireproof coatings. Background technique [0002] In the prior art, most exterior wall paints use styrene-acrylic emulsion, pure acrylic emulsion or elastic pure acrylic emulsion as the base material, combined with appropriate inorganic pigments and fillers, to prepare water-based paints. This type of coating has good light aging resistance, scrub resistance and corrosion resistance, but usually has poor water resistance, becomes brittle at low temperature, and becomes sticky at high temperature. The coating itself is prone to small cracks and poor pollution resistance. Well, the general service life is about 5 years. [0003] Due to the surface effect, small size effect, quantum size effect and other properties of nanomaterials, nano-polymer particles have high surface energy and low film-forming temperature, and can obtain higher glass transitio...

AI Technical Summary

Problems solved by technology

Existing fireproof coatings generally have excellent fireproof effects, but other effects, such as impact resistance, artificial aging resistance, adhesion, etc., are poor, which affects their service life, and are easy to fall off due to long time, and the antibacterial effect is not good.