Two-component polymer cement-based nano waterproof coating and preparation method thereof

Abstract

The invention discloses a two-component polymer cement-based nano waterproof coating and a preparation method thereof. The two-component polymer cement-based nano waterproof coating is prepared from aliquid material and a powder material; the liquid material comprises, by weight, 75-90 parts of acrylic emulsion, 5-15 parts of an inorganic nano liquid, 0.5-1.5 parts of a coalescing agent and 0.1-0.7 part of a defoaming agent; the powder material is prepared from 35 to 50 parts of cement, 0.1 to 0.7 part of a water reducing agent, 10 to 15 parts of hydrotalcite, 0.2 to 1 part of sepiolite and 35 to 50 parts of quartz sand. The two-component polymer cement-based nano waterproof coating possesses both the advantages of organic materials such as high flexibility and cracking resistance and theadvantages of inorganic materials such as excellent durability; the defect of poor compatibility between the existing JS waterproof paint and base materials is avoided; the advantages of high weatherresistance, high bonding strength and high flexibility are achieved. The two-component polymer cement-based nano waterproof coating contains a flexible network of an organic polymer material and a gel network of a novel inorganic nano material, so that the characteristics of inorganic materials such as strong ageing resistance and high strength, and the characteristics of organic materials such as excellent stretching resistance, crack resistance, shrinkage resistance and excellent construction brushing property are achieved, and multifunctional integration of rigidity and flexibility is realized.

Description

technical field [0001] The invention relates to the technical field of nano waterproof materials, in particular to a two-component polymer cement-based nano waterproof coating and a preparation method thereof. Background technique [0002] Polymer cement-based composite waterproof material is a two-component super-strength elastic waterproof coating, which is flexible, healthy and environmentally friendly, and can resist displacement caused by expansion or contraction of buildings. It is made by adding plasticizer, improver, anti-aging agent and nano-materials. Due to the addition of nano-materials, the coating has super water resistance, impermeability, high bonding strength, high tensile strength, excellent performance and service life. Higher than other similar products, it can be used for indoor and outdoor waterproofing projects of various building structures such as concrete, brick walls, concrete blocks, prefabricated blocks, such as: ground roofs, balconies, basement...

AI Technical Summary

Problems solved by technology

[0003] The existing cement-based nano-waterproof coating has poor adhesion, and when applied to the facade wall, the coating is easy to hollow out and fall off, resulting in water leakage and other problems. For this reason, we propose a two-component polymer cement-based nano-waterproof coating and its preparation method to solve the above problems