Transparent fireproof paint used for lost foam

Abstract

The invention discloses a transparent fireproof paint used for lost foam, which comprises the following components by weight part: 30-40 parts of methylated amino resin, 20-30 parts of pentaerythritol triacrylate, 8-12 parts of amino acid sodium phosphate resin, 20-30 parts of melamine, 15-20 parts of ammonium polyphosphate, 2-4 parts of inorganic sodium phosphate, 1-3 parts of smog inhibitor, 10-20 parts of titanium dioxide, 5-7 parts of sulfate tritolyl phosphate and 7-9 parts of dispersant. The obtained fireproof paint has the advantages of no irritation, no pollution, good cohesiveness when being coated on the surface of the lost foam, beauty, stable chemical performance, excellent acid and alkali resistance and corrosivity, the paint coating with thickness of lower than 3mm has fireproof effect for 60-80 minutes, flame resistance is greatly increased, and usage life of the lost foam is prolonged.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a transparent fireproof coating for lost foam. Background technique [0002] In recent years, lost foam casting has developed rapidly in China, and the development results are gratifying. There have been breakthroughs in both the manufacturing level of key equipment and the process level of complex castings produced by lost foam. The pre-expansion machine has been greatly improved and improved, and a lot of work has been done in the design of the shape structure, the improvement of the foaming principle and the improvement of the testing methods. The performance of the foaming machine has been greatly improved and can basically meet the requirements of use. The molding machine has also been improved to a certain extent. With the improvement of automation level and its application in domestic molding, the automation level of domestic molding machines has also been s...

AI Technical Summary

Problems solved by technology

At present, the methods used are mainly spraying inorganic fibers on the surface of the lost foam, pasting fiberboards, pasting flexible boards, etc., but the construction is often complicated, the cost is high, and it will affect the appearance. Only when it reaches 5mm or more can a better fire prevention effect be achieved, which requires repeated spraying, which is labor-intensive and material-intensive

At present, halogen-free fire retardant coatings generally need to add a large amount of organic or inorganic flame retardants, and must be blended with the base material during construction; blending not only brings a lot of labor and complicated steps to the construction, but also organic solvents The volatilization of the flame retardant will cause harm to the environment and the human body; the addition of a large amount of flame retardants will also affect the overall performance of the system, such as decreased adhesion and significantly reduced transparency