Polyacrylic ester polymer cement-based waterproof paint and preparation method thereof

Abstract

The invention discloses polyacrylic ester polymer cement-based waterproof paint and a preparation method thereof. The paint is prepared from the following ingredients in parts by weight: 100 parts oftricalcium silicate cement, 40 to 60 parts of tetra-calcium aluminoferrite cement, 70 to 110 parts of polyacrylic ester emulsion, 60 to 80 parts of quartz sand, 5 to 15 parts of polysiloxane, 1 to 5 parts of silane coupling agents, 10 to 20 parts of silicon nitride and 10 to 16 parts of magnesium oxalate. The preparation method comprises the following steps of mixing the tricalcium silicate cement, the tetra-calcium aluminoferrite cement, the quartz sand, the silicon nitride and the silicon carbide; dispersing the mixture into the polyacrylic ester emulsion; heating the materials to 85 DEG C;then, adding the polysiloxane and silane coupling agents; performing stirring reaction; when the quantity of Si-C, Si-O-C, Si-C-N and Si-O-Si in the reaction system is unchanged, and after the cooling, adding the magnesium oxalate; performing homogeneous treatment. The produced polyacrylic ester polymer cement-based waterproof paint can be fast cured and coagulated; the space structure is compact;excellent mechanical property and waterproof and acid-alkali resistant performance are realized.

Description

technical field [0001] The invention relates to a cement-based waterproof coating, in particular to a polyacrylate polymer cement-based waterproof coating and a preparation method thereof. Background technique [0002] Polyacrylate polymer cement-based waterproof coating is a two-component waterproof coating composed of liquid material and powder material. The liquid material is composed of polyacrylate emulsion and various additives. The powder material is composed of cement and fine sand. It has excellent water resistance, durability and stability. However, in actual construction, due to the poor compatibility between the polymer liquid material and the cement-based powder, the structural strength and peel strength of the composite cement-based waterproof coating Reduced, easy to separate from the base layer, and the coating film condenses and cures for a long time. [0003] The patent application number is CN201510028456.3, which discloses a polymer cement-based waterpro...

AI Technical Summary

Problems solved by technology

[0002] Polyacrylate polymer cement-based waterproof coating is a two-component waterproof coating composed of liquid material and powder material. The liquid material is composed of polyacrylate emulsion and various additives. The powder material is composed of cement and fine sand. It has excellent water resistance, durability and stability. However, in actual construction, due to the poor compatibility between the polymer liquid material and the cement-based powder, the structural strength and peel strength of the composite cement-based waterproof coating Reduced, easy to separate from the base layer, and the coating film condenses and cures for a long time

[0003] The patent application number is CN201510028456.3, which discloses a polymer cement-based waterproof coating. The waterproof coating is obtained by mixing a liquid material composed of acrylic emulsion and other additives and a powder composed of inorganic ores such as cement and quartz powder, which shortens the The curing time improves the bonding strength of the coating to a certain extent, but it does not essentially solve the compatibility problem between materials

Images