Waterproof corrosion-resistant coating for inner walls of water conveying pipeline and container

Abstract

The invention discloses a waterproof corrosion-resistant coating for inner walls of a water conveying pipeline and a container. The coating comprises the following components in percentage by weight: 50 to 60 percent of macromolecular epoxy resin polymer, 10 to 12 percent of polyamide-alicyclic amine hardening agent, 15 to 10 percent of edible titanium white, 16 to 9 percent of mixed solvent and 9 percent of edible talcpowder, wherein the mixed solvent is dimethylbenzene, butyl acetate and ethanol; and the ratio of the dimethylbenzene to the butyl acetate to the ethanol is 4:2:2. Compared with the conventional like products, the coating obviously improves the bond strength on concrete and steel structures, has higher permeability on the concrete and the steel structures, is convenient to construct and operate, has wide material sources and readily available materials, can be applied to resisting corrosion on the inner surfaces of various original water pipelines of tap water, water purifying pipelines, drinking water pipelines, domestic water conveying pipelines, concrete water storage ponds and concrete water storage tanks, has wide application space, and obviously prolongs service life and improves hygienic property of the water conveying pipelines and the water storage tanks.

Description

[0001] Technical field [0002] The invention relates to a paint, in particular to a water-resistant and anticorrosive paint for water delivery pipelines and container inner walls. The paint is suitable for tap water raw water pipelines, purified water pipelines, domestic drinking water pipelines, domestic water delivery pipelines, concrete storage tanks, concrete Anti-corrosion of the inner surface of the water storage tank. Background technique [0003] At present, in the field of anti-corrosion of water pipelines, the inner walls of water pipelines are mostly treated with cement mortar. The bonding strength between the mortar layer and the steel pipe is very poor, which can easily cause the brushing layer to fall off. At the same time, the cement brushing is alkaline. , Will cause certain pollution to the water body. Similarly, as a secondary concrete storage tank on a multi-storey building, after a period of use, the inner surface will be scaled and it is not easy to clean, c...

AI Technical Summary

Problems solved by technology

[0003] At present, in the field of anti-corrosion of tap water pipelines, the inner walls of water pipelines are mostly treated with cement mortar. , will cause some pollution to the water body

Similarly, as a concrete secondary water storage tank on a multi-storey building, after a period of use, scaling will appear on the inner surface and it is not easy to clean, causing secondary pollution to the water body

However, the concrete pool has not been treated with anticorrosion, and the silicate and phosphate released by the concrete itself will pollute the water body.

In addition, the coating used on the inner wall of the existing tap water pipeline has low bonding strength and is easy to fall off after use, causing pollution to the water body