Germicidal negative-radical waterproof coating and preparation method thereof

Abstract

The invention discloses a germicidal negative-radical waterproof coating, which is characterized by being prepared from the following raw materials in parts by weight: 0.2-0.4 part of a dispersant EFKA4010, 0.1-0.2 part of a defoaming agent BYK-390, 0.2-0.3 part of a defoaming agent BYK-057, 0.1-0.3 part of a dodecylbenzene sulfonic acid, 40-50 parts of an organosilicone modified polyester resin, 10-15 parts of an acrylic resin, 6-8 parts of a hexamethoxymethyl melamine resin, 4-6 parts of rutile titania, 2-4 parts of silicon sol, 0.3-0.5 part of methyl cellulose, 0.3-0.5 part of palm wax, 3-6 parts of barium sulfate, 4-5 parts of mica powder, 1-2 parts of a matting agent, 0.2-0.4 part of an anti-scratch agent BYK-980, 7-9 parts of S-150, 3-5 parts of diacetone alcohol, 5-7 parts of butyl acetate, 0.5-1.0 part of quizalofop-p-ethyl, and 5-7 parts of a negative-radical additive. According to the coating disclosed by the invention, the added silicon sol is used for enhancing the hardness and wear resistance of a coated film, the added anti-scratch agent is used for improving the scratch resistance of the coated film, the added rutile titania achieves good bacteriostatic and germicidal effects and the like on the soil, and the added negative-radical additive has a good negative-radical effect and has no adverse effect on plants.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to a bactericidal and root-blocking waterproof coating and a preparation method thereof. Background technique [0002] Waterproof materials are widely used in the field of building material protection. After coating the building with waterproof coating, the building can be isolated from the external environment, thereby preventing the intrusion of rainwater, groundwater and other corrosive liquids and moisture in the air into the building. corrosion caused by building materials and prolong the service life of building materials. However, general building waterproof materials are difficult to resist the puncture of plant roots. At present, there are mainly root-blocking waterproofing membranes and root-blocking waterproof coatings on the market. Root-blocking waterproofing membranes mainly include composite copper-based modified asphalt waterproofing membranes. The root-...

AI Technical Summary

Problems solved by technology

However, general building waterproof materials are difficult to resist the puncture of plant roots.

At present, there are mainly root-blocking waterproofing membranes and root-blocking waterproof coatings on the market. Root-blocking waterproofing membranes mainly include composite copper-based modified asphalt waterproofing membranes. The root-blocking effect of this membrane is reliable, but the cost is also very expensive; The other is the metal base waterproof membrane. The defect of this type of material is that the base is located in the middle of the material, so that the metal base cannot be closed at the overlap of the coils, leaving a channel for the root system of the plant that can change the growth direction, so that the roots are blocked. The waterproof effect is invalid; another category is metal coiled materials, which are welded and seamed, and the effect is reliable, but the disadvantages are high cost and metal ions are poisonous to plant roots, which will cause deformed plant growth, and the production process of waterproof coiled materials is very difficult. Complex, high cost, high requirements for construction personnel, difficult to maintain and maintain later, so the scope of use is limited