Weather-resistant waterproof building material based on base film and preparation method of weather-resistant waterproof building material

Abstract

The invention belongs to the field of building materials, and particularly relates to a weather-resistant waterproof building material based on a base membrane and a preparation method thereof, a light middle layer is formed by taking a mixed membrane of silane resin and sodium methyl silicate as the base membrane and taking bamboo charcoal powder and sepiolite fibers as porous raw materials, and the specific preparation method is provided. The problem of poor adhesive force of a base film is solved, stable chemical bond connection is formed by utilizing hydroxyl structures in silane resin and sodium methyl silicate and active groups of polyurethane, a good adhesion effect is achieved, meanwhile, a shrinkage polymerization effect is achieved by utilizing hydroxyl polymerization in sodium methyl silicate and silane resin, and the adhesive force of the base film is improved. A surface three-dimensional polymerization effect is realized, and the composite material not only has a good pressure-bearing effect, but also has water resistance and weather resistance.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a base film-based weather-resistant waterproof building material and a preparation method thereof. Background technique [0002] In the prior art, the enclosure structure of the building should prevent the infiltration of rainwater, snowwater and groundwater, and prevent the erosion of moisture, steam and other harmful gases and liquids in the air. Waterproofing is mostly used in roofs, underground buildings, underground parts of buildings, inner chambers and water storage structures that need to be waterproofed. According to the different measures and means adopted, it can be divided into two categories: material waterproof and structural waterproof. Material waterproofing is to rely on building materials to block the passage of water to achieve waterproofing or increase the ability to resist leakage, such as basement membrane waterproofing. Although the base film...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art, the present invention provides a weather-resistant waterproof building material based on the base film, which solves the problem of poor adhesion of the base film, and utilizes the hydroxyl structure in the silane resin and sodium methyl silicate and the polyurethane itself The active group forms a stable chemical bond connection to achieve a good adhesion effect. At the same time, it uses sodium methyl silicate to polymerize with the hydroxyl group in the silane resin to achieve the shrinkage polymerization effect and realize the three-dimensional polymerization effect on the surface. It not only has a good pressure bearing effect , also has waterproof and weather resistance