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Preparation method of nano self-cleaning environment-friendly coating

An environmentally friendly coating and self-cleaning technology, applied in anti-fouling/underwater coatings, radiation-absorbing coatings, reflection/signal coatings, etc., can solve problems such as poor cleaning performance, affecting the appearance of coatings, and rust and corrosion of objects, and achieve improved durability. Abrasion resistance and durability, prolonging service life, and preventing leveling and cracking

Inactive Publication Date: 2020-05-01
骆瑜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing nano-environmental protection coatings have poor self-cleaning performance. After being applied to the surface of the object, the surface of the object will easily accumulate moisture and oil and other organic substances after a period of time, which will affect the appearance of the coating and cause the object to rust and corrode.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A preparation method of nano self-cleaning environmental protection coating, the preparation method comprises the following steps:

[0039] Step 1. In parts by weight, take 40 parts of nano-titanium dioxide colloids and put them into a stirred reactor, add 55 parts of deionized water into the stirred reactor, and set the speed of the stirred reactor at 320r / min. The heating rate was raised to 80°C, and after stirring for 8 minutes, the nano-titanium dioxide colloid was initially dispersed in deionized water, and 8 parts of ethanol and 8 organic solvents were added dropwise to the stirred reactor, and the stirring time was set to 25 minutes. Further dissolving under the action of ethanol and an organic solvent to obtain a colloidal solution of nano-titanium dioxide;

[0040] Step 2: Take 8 parts of zeolite and pulverize it to obtain zeolite powder with a particle size of 30-40nm, add the nano-titanium dioxide colloid solution obtained in step 1 into a heating agitator, s...

Embodiment 2

[0058] A preparation method of nano self-cleaning environmental protection coating, the preparation method comprises the following steps:

[0059] Step 1, in parts by weight, take 30 parts of nano-titanium dioxide colloids and put them into a stirred reactor, add 50 parts of deionized water to the stirred reactor, the stirring reactor speed is 280r / min, and the temperature is 5°C / min. The heating rate was raised to 80°C, and after stirring for 5 minutes, the nano-titanium dioxide colloid was preliminarily dispersed in deionized water, and 5 parts of ethanol and 5 parts of organic solvent were added dropwise to the stirred reactor, and the stirring time was set to 20 minutes. The product is further dissolved under the action of ethanol and an organic solvent to obtain a nano-titanium dioxide colloidal solution;

[0060] Step 2: Take 10 parts of zeolite and pulverize it to obtain zeolite powder with a particle size of 30-40nm, add the nano-titanium dioxide colloid solution obtai...

Embodiment 3

[0077] A preparation method of nano self-cleaning environmental protection coating, the preparation method comprises the following steps:

[0078] Step 1. In parts by weight, take 45 parts of nano-titanium dioxide colloids and put them into a stirred reactor, add 60 parts of deionized water into the stirred reactor, and set the rotating speed of the stirred reactor at 350r / min. The heating rate was raised to 80°C, and after stirring for 10 minutes, the nano-titanium dioxide colloid was preliminarily dispersed in deionized water, and 10 parts of ethanol and 10 parts of organic solvent were added dropwise to the stirred reactor, and the stirring time was set to 30 minutes, and the nano-titanium dioxide colloid Further dissolving under the action of ethanol and an organic solvent to obtain a colloidal solution of nano-titanium dioxide;

[0079] Step 2. Take 5 parts of zeolite and pulverize it to obtain zeolite powder with a particle size of 30-40nm. Add the nano-titanium dioxide ...

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Abstract

The invention discloses a preparation method of a nano self-cleaning environment-friendly coating. The preparation method comprises the following steps: firstly, putting a nano titanium dioxide colloid into a stirring reaction kettle; adding deionized water, ethanol and an organic solvent for reaction to prepare a nano titanium dioxide colloidal solution; adding the nano titanium dioxide colloidalsolution into a heating stirrer, meanwhile, adding zeolite, inorganic environment-friendly filler, polyvinylpyrrolidone and sodium benzoate at the same time, then performing a stirring reaction to prepare a nano titanium dioxide emulsion, adding the nano titanium dioxide emulsion into a stirring kettle, adding a thickening agent and a defoaming agent, thereby preparing the nano self-cleaning environment-friendly coating. The environment-friendly coating has super-hydrophobic and oleophobic performance and excellent self-cleaning performance. The invention further provides a ball milling device, the ball milling device is used for grinding and refining titanium dioxide particles, mixed materials roll in the wheel sand cutting groove formed in the ball milling device, grinding and refiningare achieved, and the ball milling effect is good.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to a preparation method of nanometer self-cleaning and environment-friendly paint. Background technique [0002] Nano-environmental protection coating is the product of the connection between nano-materials and coatings. It belongs to a class of high-tech functional coatings. It specifically refers to the preparation of nano-materials such as sol-gel method. It is all composed of nano-materials with particle sizes below 100 nanometers. Coatings are widely used in house wall painting, vehicle spraying, etc. Due to the small size effect, surface effect, quantum size effect and macroscopic quantum tunneling effect of nanoparticles, they appear as conventional materials in terms of magnetism, light, electricity, sensitivity, etc. Features not available. [0003] Self-cleaning paint is a kind of paint that can be used on the surface of substrates (such as glass ceramics or woo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/16C09D5/32C09D5/33C09D7/20B02C19/20
CPCB02C19/20C09D1/00C09D5/004C09D5/1687C09D5/32C09D7/20
Inventor 骆瑜
Owner 骆瑜
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