Waterproof adsorbing anti-crack water-based paint for external walls and preparation method thereof

Abstract

The invention discloses a waterproof adsorbing anti-crack water-based paint for external walls. The paint is characterized by being prepared from the following raw materials in parts by weight: 23-26 parts of silicone acrylic emulsion, 12-14 parts of PVDC latex, 2-3 parts of sodium silicate, 3.5-4.5 parts of lignocellulose, 3-5 parts of polyvinyl alcohol superfines, 1.5-2.5 parts of sodium sulfite, 0.5-0.7 part of calcium stearate, 7-10 parts of bamboo charcoal, 15-18 parts of coarse whiting, 6-8 parts of modified rounded-grain mortar, and 25-30 parts of water. The paint disclosed by the invention adopts a waterproof emulsion formula, and waterproof agents of the calcium stearate and the like are cooperated, so that the waterproof effect is super high; the bamboo charcoal is added, so that dust particles in air can be adsorbed, and the air pollution can be relieved; the lignocellulose is added, so that the anti-crack capacity is enhanced, and the adsorbing capacity of a paint film is improved; modified rounded-grain mortar is added, so that the dispersal effect is good, the hardness is high, the abrasion resistance is good, the pressure of buildings cannot be increased, the paint is elegant in appearance, and different decoration demands can be satisfied.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to a water-based waterproof, adsorption, and anti-cracking coating for exterior walls and a preparation method thereof. Background technique [0002] Buildings are exposed to sunlight and the temperature rises, especially in summer, making the interior more stuffy; and when it rains, the buildings are impacted by rainwater, which accumulates over time, and rainwater will leak from the outer walls or roofs of houses Indoors, it will affect people's work and life. At present, it is often treated with mosaic or paint, which mainly plays the role of decoration and waterproof. Among them, mosaic has good waterproof performance, but its cost is high and construction is difficult. However, the existing coatings with asphalt or coal tar are generally easy to construct, but the waterproof effect is not good enough. Phenomena such as peeling, serious environmental pollution, gre...

AI Technical Summary

Problems solved by technology

However, the density of round sand is high, adding it to the paint and spraying it on the outer wall will increase the weight of the building, and there is a danger of falling off the wall due to wind and sun, and it will also affect the dispersion of the paint.