Water-based organic-inorganic hybrid anti-freezing coating

Abstract

The invention relates to the technical field of anti-freezing coatings, in particular to a water-based organic-inorganic hybrid anti-freezing coating, which is prepared from the following components in parts by weight: 1 to 50 parts of water-base resin, 1 to 20 parts of water-soluble curing agent, 0 to 30 parts of functional filler, 0.01 to 1.00 part of accessory ingredient, 1 to 20 parts of solvent, and the balance of deionized water for complementing 100 parts by weight. The water-soluble curing agent is a nitrogen-containing derivative and/or polyhydroxy-alcohol and water-soluble amino resin cross-linked with active groups such as hydroxide radical, carboxyl, amino, epoxy group and (sealed) isocyanate in the water-base resin. The water-based organic-inorganic hybrid anti-freezing coating provided by the invention is prepared by blending the water-base resin, the curing agent, the filler, a surface active agent and the solvent, and is particularly suitable for heat exchange surface treatment of an air conditioner coating aluminum foil, a refrigerator/cabinet inner container and the like.

Description

technical field [0001] The invention relates to the technical field of anti-icing coatings, in particular to a water-based organic-inorganic hybrid anti-icing coating. Background technique [0002] In transportation, aerospace, heat exchange, power communication and many other fields, icing / frost has brought great harm and potential safety hazards to human beings and society. Although the existing anti-icing methods such as mechanical deicing, heating deicing and spraying chemical reagents are effective, they have problems such as large energy consumption, environmental pollution and poor durability. The use of anti-icing functional coatings to modify the surface of substrates is convenient and effective, and sacrificial coatings, ice-phobic coatings and super-hydrophobic coatings have become research hotspots. [0003] Existing anti-icing / frost technology mainly adopts super-hydrophobic surface treatment, such as Chinese patent CN 104341901A discloses an organic-inorganic ...

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Problems solved by technology

[0003] Existing anti-icing / frost technology mainly adopts super-hydrophobic surface treatment, such as Chinese patent CN 104341901A discloses an organic-inorganic system coating, with acrylic resin as film-forming material, adding diatomite, carbon black, isocyanate, hexametaphosphoric acid Sodium and silicone defoamer are blended and melted to prepare a wear-resistant anti-icing coating; Chinese patent CN 103013316A "A super-weather-resistant, wear-resistant and anti-icing wind power blade coating and its preparation method" discloses an organic-inorganic System coatings, with fluorocarbon resin and polyester resin as film-forming materials, supplemented with nano-fillers and dispersants to prepare wear-resistant, weather-resistant and anti-icing wind turbine blade coatings, these surfaces are controlled by certain surface morphology and low surface energy material phase Cooperate, it can achieve resistance to external pollution or pollutants and easy to clean, but the anti-icing effect is not clear, especially for long-lasting anti-icing, no relevant research and investigation have been carried out

In the Chinese patent CN103194130A, the ice-adhesive anti-icing coating prepared with acrylic resin supplemented with inorganic fillers needs external forces such as wind force or gravity to remove the ice layer to achieve the anti-icing effect, which can only accelerate the rapid detachment of the ice layer

[0004] The defects of the existing anti-icing / frost technology are mainly manifested in: the use of a hydrophobic surface cannot satisfy the anti-icing performance for a long time, and it often decays rapidly after repeated use; no effective solution

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