Nano modified one-component polyurethane waterproofing paint and preparation method thereof

Abstract

The invention discloses a nano modified one-component polyurethane waterproofing paint and a preparation method thereof. The paint comprises the following ingredients in parts by weight: 120-150 parts of polyether polyol, 60-70 parts of TDI (toluene di-isocyanate), 10-20 parts of phosphoric acid, 10-20 parts of nano CaCO3, 10-20 parts of nano TiO2, 10-20 parts of nano ZnO, 1-5 parts of hexadecyl trimethyl ammonium bromide, 2-4 parts of a de-foaming agent, and 3-8 parts of dibutyltin dilaurate. By adding the nano materials to modify the waterproofing paint, the weather resistance and the acid resistance of the waterproofing paint are effectively improved, and meanwhile, the other mechanical properties of the film are also greatly improved correspondingly.

Description

technical field [0001] The invention relates to a waterproof coating, in particular to a nano-material modified one-component polyurethane waterproof coating and a preparation method thereof. Background technique [0002] Building waterproof coatings are mainly made of synthetic polymer materials, asphalt, polymer modified asphalt, inorganic materials, etc., mixed with appropriate amount of additives, modified materials, filler materials, etc. Compared with waterproof coiled materials, waterproof coatings are simple and convenient to construct, suitable for any shape of base surface, and can form a dense and seamless coating film. Therefore, waterproof coatings have been widely used in various waterproof projects and have achieved rapid development. develop. At present, waterproof coatings in industrially developed countries such as the United States, Britain, Japan, France, and Germany all occupy a considerable share in building waterproof materials. While actively develo...

AI Technical Summary

Problems solved by technology

[0005] However, compared with developed countries, the overall performance of polyurethane waterproof coatings in my country is poor, and the quality is also unstable.