a nanotio 2 In-situ hybrid antibacterial and waterproof coating treatment agent and preparation method thereof

Abstract

The invention discloses a preparation method of nano TiO2 in-situ hybridization antibacterial waterproof coating treatment agent. The preparation method comprises the following steps: hydrolyzing titanate in a mixed solvent of alcohol and water to prepare nano TiO2 sol by adopting acid as a catalyst; slowly dropwise adding the prepared nano TiO2 sol into an alcohol solution of a silane coupling agent, after the nano TiO2 sol is completely added, reacting for 0.5 to 3 hours at the temperature of 60 to 80 DEG C, cooling, and obtaining the nano TiO2 hybridized antibacterial waterproof coating treatment agent. The preparation method is simple and easy, the prepared nano TiO2 hybridization antibacterial waterproof coating treatment agent is good in storage stability, transparent, free from layering, good in permeability and capable of being used as a coating treatment agent for materials such as fabrics, lumber, buildings and the like, has an anti-ultraviolet function, an anticorrosion function and excellent waterproof performance and does not influence the color and quality of the material.

Description

technical field [0001] The invention belongs to the field of surface treatment agents and relates to a nano-TiO 2 The invention discloses a preparation method of an in-situ hybrid antibacterial and waterproof coating treatment agent. Background technique [0002] Functional treatment of the surface of materials is a common demand in all fields, and the more common functional treatments include hydrophobic finishing and antibacterial finishing. Hydrophobic finishing is to endow the material with water-repellent properties. Hydrophobicity makes it difficult for water droplets to invade the interior of the material. At the same time, due to the low potential energy on the surface of the material, it is difficult for dirt to adhere, and the rolling of water droplets on the surface of the material can take away the stains on the material part, making the material still intact. Has a certain self-cleaning performance. The antibacterial property makes it impossible for bacteria t...

AI Technical Summary

Problems solved by technology

All used film-forming agents in the existing open literature, such as silane resin, acrylic resin, etc., the brightness of this type of resin is too high, it will cause light pollution when the surface of the material is treated, and the permeability of this type of resin is poor. , it is difficult to deeply combine with the material, and there is a defect that the binding force is not reliable

In the prior art, film-forming agents, such as silane resins and acrylic resins, are commonly used. However, silanes generally have certain toxicity and are easy to volatilize. Therefore, they will cause certain harm to people during the preparation of the agent and subsequent construction. The addition of polymer resin film-forming agent will have a greater impact on the air permeability of the material

There is still a problem in the protective agent prepared in the prior art, that is, the stability of the prepared nanoparticles. Due to the small size of the nanoparticles, large specific surface area, and high surface energy, such particles are prone to aggregation and precipitation. Easy to settle and delaminate during preparation and storage

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