Silicon-zirconium composite super-hydrophilic abrasion-resistant coating

Abstract

The invention relates to a silicon-zirconium composite super-hydrophilic abrasion-resistant coating. The silicon-zirconium composite super-hydrophilic abrasion-resistant coating comprises the following components in parts by weight: 5-30 parts of single-layered zirconium hydrogen phosphate, 10-50 parts of silica sol containing sulfonic acid groups, 20-30 parts of a silane coupling agent and 30-60 parts of an alcohol solvent. A preparation method of the silicon-zirconium composite super-hydrophilic abrasion-resistant coating comprises the following steps: ultrasonically dispersing the single-layered zirconium hydrogen phosphate in the alcohol solvent to obtain single-layered dispersed zirconium hydrogen phosphate, blending and compounding the single-layered dispersed zirconium hydrogen phosphate with the silica sol containing the sulfonic acid groups, then adding the silane coupling agent, simultaneously adding acid, adjusting pH value of a system to be 3-5, and carrying out cohydrolysis reaction for 1-8 hours to obtain the silicon-zirconium composite super-hydrophilic abrasion-resistant coating. The silicon-zirconium composite super-hydrophilic abrasion-resistant coating is high in hydrophilicity, fog resistance, water resistance and weather resistance, and longer in service life; a coating prepared by the coating is high in hardness, abrasion resistance, scratch resistance, fingerprint resistance and stain resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a silicon-zirconium composite superhydrophilic wear-resistant coating. Background technique [0002] The contact angle of water on the surface of transparent materials such as glass, plastic, and film is above 40°. When there is a temperature difference between the inner and outer surfaces, water vapor will condense on the surface of the material to form fog when it is cold, affecting the transparency of the material. Coating a transparent coating with super hydrophilic properties on the surface of the material can make the contact angle of water on the surface of the material below 5°, so that the water mist or water droplets on the surface of the material will spread on the surface of the material to form a water film. Does not affect the transparency of the material, thus achieving the purpose of anti-fog. The current commercialized superhydrophilic anti-fog coatings are mai...

AI Technical Summary

Problems solved by technology

The current commercialized superhydrophilic anti-fog coatings are mainly pure polymer material systems. The hydrophilic groups that play a superhydrophilic role in this material are connected to the main chain of the polymer, which makes the water resistance of this coating poor. , resulting in a short service life and poor weather resistance of the super-hydrophilic coating

At the same time, the hardness of the coating prepared by this coating is also low, and the wear resistance, scratch resistance, anti-fingerprint, and stain resistance are relatively poor.

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