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Preparation method of water-resistant anticorrosive antirust paint

A technology for anti-rust paint and preparation steps, applied in the direction of anti-corrosion paint, coating, etc., can solve the problems of poor waterproof performance and anti-corrosion performance, poor anti-rust performance of anti-rust paint, etc., and achieves the improvement of anti-rust and broad application prospects. Effect

Pending Publication Date: 2020-05-01
广州市天河区车陂亚贝思烘焙店
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide a method for preparing a water-resistant and anti-corrosion anti-rust paint in view of the defects of poor anti-rust performance, poor waterproof performance and poor anti-corrosion performance of the current anti-rust paint

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Preparation of solid-liquid mixture:

[0039] Put cotton and crop straw into an oven at a mass ratio of 5:1, dry at a temperature of 60°C for 2 hours, put them into a pulverizer after drying, and mix them to obtain a mixed material. The hydrochloric acid of % is dropped in the beaker as 1:10 by mass ratio, stirs 30min with the rotating speed of 120r / min with stirring device, leaves standstill 5h after stirring and makes solid-liquid mixture;

[0040] Preparation of reaction slurry:

[0041] Place the above beaker in a resistance heating mantle, add dropwise a sodium hydroxide solution with a mass fraction of 20% of the solid-liquid mixture and a mass fraction of 8% into the beaker, raise the temperature of the heating mantle to 80°C after the dropwise addition, and heat at a constant temperature for 60 minutes to prepare Reaction slurry, the reaction slurry and silicon dioxide powder are put into the reactor in a mass ratio of 50:1;

[0042] Preparation of homemade pr...

Embodiment 2

[0053] Preparation of solid-liquid mixture:

[0054] Put cotton and crop straw into an oven at a mass ratio of 5:1, dry for 2.5 hours at a temperature of 65°C, put them into a pulverizer after drying, and mix them to obtain a mixed material. The hydrochloric acid of 7.5% is dropped in the beaker as 1:10 by mass ratio, stirs 35min with the rotating speed of 135r / min with stirring device, leaves standstill 5.5h after stirring and makes solid-liquid mixture;

[0055] Preparation of reaction slurry:

[0056] Place the above beaker in a resistance heating mantle, add dropwise a sodium hydroxide solution with a mass fraction of 22.5% of the solid-liquid mixture and a mass fraction of 10% into the beaker, raise the temperature of the heating mantle to 90°C after the dropwise addition, and heat at a constant temperature for 70 minutes. Reaction slurry, the reaction slurry and silicon dioxide powder are put into the reactor in a mass ratio of 50:1;

[0057] Preparation of homemade pr...

Embodiment 3

[0068] Preparation of solid-liquid mixture:

[0069] Put cotton and crop straw into an oven at a mass ratio of 5:1, dry for 3 hours at a temperature of 70°C, put them into a pulverizer after drying, and mix them to obtain a mixed material. The hydrochloric acid of % is dropped in the beaker as 1:10 by mass ratio, stirs 40min with the rotating speed of 150r / min with stirring device, leaves standstill 6h after stirring and makes solid-liquid mixture;

[0070] Preparation of reaction slurry:

[0071]Place the above beaker in a resistance heating mantle, add dropwise a sodium hydroxide solution with a mass fraction of 25% of the solid-liquid mixture and a mass fraction of 12% into the beaker, raise the temperature of the heating mantle to 100°C after the dropwise addition, and heat at a constant temperature for 80 minutes to prepare Reaction slurry, the reaction slurry and silicon dioxide powder are put into the reactor in a mass ratio of 50:1;

[0072] Preparation of homemade p...

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PUM

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Abstract

The invention belongs to the technical field of coating preparation, and particularly relates to a preparation method of water-resistant anticorrosive antirust paint. The method comprises the following steps: firstly, drying, crushing and mixing cotton and crop straws; mixing and stirring a self-made protective agent, an antirust auxiliary agent, water, an organic solvent and other auxiliary agents to obtain a prefabricated mixed solution; and mixing the prefabricated mixed solution, aluminum tripolyphosphate, triethylamine and other raw materials to obtain the water-resistant anticorrosive antirust paint. According to the invention, the cotton and crop straw are smashed and blended, fiber components are extracted from the cotton and crop straw through a high-temperature reaction of hydrochloric acid and alkali liquor, wherein the fiber components are hydrolyzed under the environment of high temperature, high pressure and alkali liquor, so that the contact degree of fibers and all thecomponents in the antirust paint is improved, and then the pH value is adjusted to enhance the waterproof performance and mechanical strength of the fibers; then, cotton and crop straw are subjected to enzymolysis through cellulase and oxidized through a sulfuric acid solution and potassium permanganate, so that the simple substance aluminum is dispersed in fiber components. In the invention, therust resistance, water resistance and corrosion resistance of the antirust paint are improved, and the antirust paint has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, and in particular relates to a preparation method of water-resistant and anti-corrosion antirust paint. Background technique [0002] Antirust paint is a coating that protects metal surfaces from chemical or electrochemical corrosion from the atmosphere, sea water, etc. [0003] The water-based metal anti-rust paint is made of metal strong chelating agent phytate as the main component, and is compounded with several other water-based additives. Phytate is a natural non-toxic organic chemical product extracted from food crops. When it is used as an antirust agent for magnetic materials, it can quickly chelate with metals on the surface to form a dense monomolecular complex for protection. film, which can effectively inhibit the corrosion of metals. The surface of the material treated by this product maintains its original color, and it can enter the next process such as painting withou...

Claims

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Application Information

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IPC IPC(8): C09D5/10C09D4/02C09D4/06
CPCC09D4/06C09D5/103
Inventor 刘蓉凤
Owner 广州市天河区车陂亚贝思烘焙店