Waterborne expansion fire-proof coating with weather resistance and fire resistance and preparing method

Abstract

The invention discloses a waterborne expansion fire-proof coating with the weather resistance and the fire resistance and a preparing method. The waterborne expansion fire-proof coating is mixed by A components and B components; the A components are prepared from a thickening agent, a dispersing agent, an antifoaming agent, a sterilizing agent, titanium dioxide and water; the B components are prepared from modified acrylic emulsion, pentaerythritol, tripolycyanamide, ammonium polyphosphate, chlorinated paraffin, a coalescing agent and water. The waterborne expansion fire-proof coating is an environment-friendly waterborne expansion fire-proof coating, and has the advantages of being good in ultraviolet light resistance, low in water absorption rate, high in fire resistance and the like, and the defects that the physical and chemical performance, the fire resistance and the like of domestic similar products are poor are overcome. Compared with foreign similar products, the physical and chemical performance and the stability of the fire resistance of a product are improved; meanwhile, the coating has the good construction performance, the decorative performance is high, the product storage stability is good, the raw materials are easy to obtain, and the cost is moderate; the weather resistance of the product meets the requirements of the standard technology.

Description

technical field [0001] The invention relates to the preparation technology of functional coatings, in particular to a water-based swelling fireproof coating with weather resistance and fire resistance and a preparation method. Background technique [0002] In the 1980s, my country's main fireproof material research department began to develop fireproof coatings. Up to now, domestic fireproof coating products and technical levels have been similar to foreign developed countries. There are many types of products: decorative fireproof coatings, cable fireproof coatings, and steel structures. Fireproof coatings, concrete structure fireproof coatings, etc. Intumescent fireproof coatings are favored by more application fields due to their thin coating, excellent fire resistance and strong decoration. [0003] With my country's continuous emphasis on environmental protection, fire-resistant coatings have also achieved certain results in environmentally friendly products and technolo...

AI Technical Summary

Problems solved by technology

Water-based intumescent fireproof coatings generally use modified acrylic emulsion as the main adhesive. Due to the backwardness of my country's basic chemical industry technology, water-based intumescent fireproof coatings that use acrylic emulsion as the main adhesive have obvious differences in fire resistance, physical and chemical properties, etc. Defects

At present, the main acrylic emulsion manufacturers are still produced by the world's largest group companies, such as BASF, Rohm and Haas, Dow Chemical, Nippon Shokubai and Arkema. These international large companies have strong technical strength. A variety of acrylic emulsions used in water-based intumescent fire retardant coatings have been used. For example, the water-based steel structure fire retardant coatings of PPG and Jotun have good fire resistance (the coating thickness is 2.0mm, and the fire resistance limit is about 1.0 hours). Outdoor weather resistance and other indicators are not very ideal, and the fire resistance performance is unstable