Modified nano aluminium hydroxide water expansion type overcoating fire retardant paint and preparation method thereof

Abstract

The invention discloses a modified nano aluminium hydroxide water expansion type overcoating fire retardant paint and a preparation method thereof. The paint is prepared from the following raw materials in percentage by weight: 22%-28% of organic silicon modified styrene-acrylate emulsion, 13%-17% of mixture of anatase type titanium dioxide and modified nano aluminium hydroxide powder, 16%-19% of ammonium polyphosphate, 8%-13% of tripolycyanamide, 5%-9% of pentaerythritol, 3%-7% of auxiliary and 21%-27% of water; and the modified nano aluminium hydroxide is prepared from the raw materials in parts by weight: 60-85 parts of nano aluminium hydroxide powder, 0.8-2.5 parts of sodium hexametaphosphate powder and 18-24 parts of water. The paint is a water system having obvious inflaming retarding effect, high fireproof performance, good brushing resistance, weather resistance and smearing hardness and low fuming amount, and has the beneficial effects of simple production process, good dispersing effect, low cost, stable quality and long service life, and is energy-saving and environment-friendly.

Description

Technical field [0001] The invention relates to a fire retardant paint, in particular to a modified nano aluminum hydroxide water-based intumescent fire retardant paint and a preparation method thereof. Background technique [0002] The issue of fire has always attracted great attention from the Party Central Committee and the State Council. Comrade Jiang Zemin once instructed: "Hidden danger is more dangerous than open fire, prevention is better than disaster relief, and responsibility is heavier than Taishan." Relevant departments have also formulated laws and regulations on fire prevention, which will help reduce fires. As a threat to people's lives and property, fireproof coatings can effectively reduce fire losses. At present, most of the fireproof coatings developed are made by adding nano-inorganic materials with high thermal stability. For example, the invention patent "Environmentally friendly nano fireproof coatings" with the publication number: CN200810229685.1 is give...

AI Technical Summary

Problems solved by technology

However, their common disadvantage is that nano-inorganic substances do not undergo decomposition and endothermic reactions under high temperature, and have the defect of low flame retardant efficiency, so the utilization rate of raw materials is low, and the fire protection effect is poor.