Silane-modified protective coating for concrete protection and preparation method thereof

Abstract

The invention discloses a silane-modified protective coating for concrete protection and a preparation method thereof. Modified silane is obtained by modifying silane by adding amphiphilic particles, and the silane-modified protective coating for concrete protection is prepared by mixing photosensitive resin and modified silane , combined with the film-forming ability and permeability of the two, the waterproof and gas-proof protective effect can be achieved, and the self-driven directional air-conducting and water-conducting effect can be achieved. The water vapor on the concrete base surface is easy to export, and can effectively block the erosion of the concrete by the external atmosphere of the coating film, and significantly improve the weather resistance of the concrete.

Description

Silane-modified protective coating for concrete protection and preparation method thereof technical field The invention belongs to technical field of coating, relate in particular to a kind of silane-modified protective coating for concrete protection and preparation thereof preparation method. Background technique As one of the most important contemporary civil engineering materials, concrete is widely used in electric power, water conservancy, bridges, public Various engineering fields such as road and railway. During use, due to long-term exposure to sunlight, rain and marine atmosphere, industrial pollution In the environment such as dyeing, Ca(OH) in concrete 2 Iso-strong alkaline components and CO in water and air 2 contact, often the neutralization of concrete phenomenon, resulting in the carbonization of the concrete itself and the corrosion of the steel bars in the concrete, resulting in low durability and low strength of the concrete structure. I...

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Problems solved by technology

However, during actual use, when the gas in the concrete escapes, some of the pores irradiated by ultraviolet light are immediately solidified and formed, and the one-way air permeability is not good, which may cause pores in the cured coating film instead.

In addition, the coating time and method are limited during the coating process. If the coating process is not completely carried out according to the operation requirements, it is easy to cause cracking of the coating and lose the protective effect