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Novel environment-friendly water-based paint and preparation method thereof

A water-based paint, environmental protection technology, applied in the direction of anti-corrosion paint, alkali metal silicate paint, coating, etc., can solve the problems of high brittleness, low paint adhesion, easy to break and fall off, etc., achieve high hardness, paint Flexible compounding and excellent corrosion resistance

Inactive Publication Date: 2020-02-28
湖南太子化工涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the coating has increased corrosion resistance compared with ordinary organic zinc-rich coatings, and the use of flake zinc increases the contact area of ​​zinc powder and improves the corrosion resistance of the coating, but the coating has low adhesion and high brittleness. The coating is easily broken and peeled off by external force

Method used

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  • Novel environment-friendly water-based paint and preparation method thereof
  • Novel environment-friendly water-based paint and preparation method thereof
  • Novel environment-friendly water-based paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In the embodiment of the present invention, a kind of novel environment-friendly water-based coating comprises the raw material of following weight portion:

[0028]

[0029]

[0030] Wherein the preparation method of the silicon-acrylic emulsion is: add 0.7 mass parts of reactive emulsifier, 30 mass parts of deionized water successively in reactor A, stir 25min under the rotating speed of 450-550r / min; Add the urethane acrylate of 6 mass parts, the isooctyl acrylate of 5 mass parts and the acrylic acid of 3 mass parts in succession, stir 32min under the rotating speed of 450r / min, make pre-emulsion; Add 0.3 parts by mass of reactive emulsifier, 15 parts by mass of deionized water and 0.2 parts by mass of buffer in turn, and stir for 15 minutes at a speed of 300r / min; slowly add 4 parts by mass of pre-emulsion to reactor B , reflux at 80-85°C for 5.5 hours, until there is no obvious reflux phenomenon in the reflux device; slowly add the remaining pre-emulsion and ...

Embodiment 2

[0035] In the embodiment of the present invention, a kind of novel environmental protection water-based coating comprises the raw material of following weight portion:

[0036]

[0037] Wherein the preparation method of the preparation method of silicon acrylic emulsion is the same as embodiment 1.

[0038] A preparation method of a novel environment-friendly water-based paint, comprising the following steps:

[0039] (1) Weigh the above-mentioned raw materials in proportion, add silicate solution and silicon acrylic emulsion to reaction kettle C in turn, and stir for 20-30min at a speed of 450-500r / min; obtain silicate-silicon acrylic acid melt emulsion.

[0040] (2) Add zinc powder, nano-silicon dioxide, nano-titanium dioxide, wetting agent, dispersant, thickener, leveling agent and film-forming aid to reactor C in sequence, and stir at a speed of 450-500r / min 35-40min; get a new type of environmentally friendly water-based paint.

Embodiment 3

[0042] In the embodiment of the present invention, a novel environment-friendly water-based coating comprises the following components by weight:

[0043]

[0044]

[0045] Wherein the preparation method of the preparation method of silicon acrylic emulsion is the same as embodiment 1.

[0046] A preparation method of a novel environment-friendly water-based paint, comprising the following steps:

[0047](1) Weigh the above-mentioned raw materials in proportion, add the silicate solution and the silicon acrylic emulsion to the reaction kettle C in turn, and stir at a speed of 350-400r / min for 20-25min; melt emulsion.

[0048] (2) Add zinc powder, nano-silicon dioxide, nano-titanium dioxide, wetting agent, dispersant, thickener, leveling agent and film-forming aid to reactor C in sequence, and stir at a speed of 400-450r / min 30-35min; get a new type of environmentally friendly water-based paint.

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Abstract

The invention discloses a novel environment-friendly water-based paint and a preparation method thereof. The paint comprise the following raw materials: a silicate solution, a silicone acrylic emulsion, a coalescing agent, zinc powder, a wetting agent, a dispersing agent, a thickener, a leveling agent, nanometer silicon dioxide and nanometer titanium dioxide. The preparation method comprises the following steps: sequentially adding the silicate solution and the silicone acrylic emulsion into a reaction kettle C, and carrying out uniform mixing under stirring to obtain a silicate-silicone acrylic hybrid emulsion; and then sequentially adding zinc powder, nanometer silicon dioxide, nanometer titanium dioxide, the wetting agent, the dispersing agent, the thickener, the leveling agent and thecoalescing agent into the silicate-silicone acrylic hybrid emulsion and carrying out uniform mixing under stirring so as to obtain the novel environment-friendly water-based paint. The prepared painthas excellent corrosion resistance, flexibility and good comprehensive mechanical properties.

Description

technical field [0001] The invention relates to the technical field of paint formulations, in particular to a novel environmentally friendly water-based paint and a preparation method thereof. Background technique [0002] Traditional solvent-based coatings contain a large amount of organic volatiles during their manufacture and use, which has brought pollution and damage to the environment, and also caused damage to the human body. The fundamental way to solve this kind of problem is to replace the traditional solvent-based paint with water-based paint. The corrosion of metal has brought huge economic losses to people. At present, the loss caused by metal corrosion accounts for about 5% of the world's gross product every year. This part of the loss exceeds the sum of the losses caused by fire, wind disasters, and earthquakes. . Therefore, metal anti-corrosion is a problem faced by experts in various industries. Applying anti-corrosion coatings is the most effective, econo...

Claims

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Application Information

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IPC IPC(8): C09D1/04C09D151/08C09D5/10C09D7/61
CPCC08K3/36C08K2003/0893C08K2003/2241C08K2201/011C08K2201/014C09D1/04C09D5/106C09D151/08C09D7/61
Inventor 刘骏
Owner 湖南太子化工涂料有限公司
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