Flame-retardant film coating and preparation method thereof

Abstract

The invention discloses a flame-retardant film coating. The flame-retardant film coating is prepared from the following raw materials in parts by weight: 0.3 to 1 part of diphenylmethane diisocyanate, 4 to 5 parts of ammonium bicarbonate, 1 to 1.5 parts of vanadium sulfate hydrate, 6 to 7 parts of sodium tungstate dehydrate, 20 to 30 parts of silane coupling agent KH570, 5 to 7 parts of methyl triethoxysilane, 60 to 70 parts of 2 to 3 percent ammonia-water solution, 1 to 1.4 parts of ammonia propyl triethoxy silane, 2 to 3 parts of hydrous zinc borate, 1 to 2 parts of benzyl triphenyl phosphonium chloride, 0.8 to 2 parts of palm wax, 0.1 to 0.2 part of symclosene, 0.8 to 1 part of sodium alkyl benzene sulfonate and 0.3 to 1 part of dimethylethanolamine. According to the flame-retardant film coating disclosed by the invention, the silane coupling agent KH570 is adopted for performing modifying treatment; silane coupling agent KH570 modules are grafted to tungsten-doped vanadium dioxide powder particles, so that the hydrophobicity of modified particles is effectively improved, and further the surface strength of the coating is improved.

Description

technical field

[0001] The invention relates to the technical field of thin-film coatings, in particular to a flame-retardant thin-film coating and a preparation method thereof. Background technique

[0002] Inorganic nanoparticles can play the role of mechanical reinforcement or endow coatings with new functions in coatings, and have attracted extensive attention. The dispersion of nanoparticles is particularly important for the realization of their functions, especially the preparation of highly transparent organic-inorganic nanocomposite coatings.

[0003] Vanadium dioxide has great application prospects in intelligent thermal insulation and energy-saving coatings, but due to the limitation of its preparation method and process, as well as the strong absorption of vanadium dioxide metal phase and semiconductor phase in the short-wave range, vanadium dioxide thin films usually have The low optical transparency greatly limits its practical applications. Therefore, the ant...