High temperature resistance acid-proof alkali-proof coating

A technology of acid and alkali resistance, high temperature resistance, applied in anti-corrosion coatings, epoxy resin coatings, anti-fouling/underwater coatings, etc., to achieve good adhesion

Inactive Publication Date: 2014-05-07
南通新昱化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the coating of oil pipe drill pipe, there is no special coating on the market at present, which can meet the working conditions of oil pipe drill pipe, high temperature resistance, acid and alkali resistance, and cold working conditions

Method used

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  • High temperature resistance acid-proof alkali-proof coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Add 200 mL of ethanol, 1 g of vinyltrimethoxysilane, and 20 g of acrylic acid into a 500 mL three-necked flask, stir, and when the temperature rises to 70 °C, add 0.15 g of azobisisobutyronitrile, react for 5 h, and add 12 gNaOH, and continue stirring for 3 h to obtain silicone-modified sodium polyacrylate resin.

[0014] The coating formulation is shown in Table 1.

[0015] Table 1

[0016] materials Mass percentage / % nano silicon oxide 18 Silicone modified sodium polyacrylate 18 Formed substance 29 Forming Auxiliary 7 Accelerator 4 solvent 11 filler 4 acid 9

[0017] The prepared high-temperature-resistant, acid-resistant and alkali-resistant coating is applied by conventional construction methods such as brushing, wiping, manual roller construction, air spray gun or airless spray gun spraying, electrostatic spraying, thermal spraying, roller coating or dip coating. Its properties are shown in Table 2. ...

Embodiment 2

[0021] Add 200 mL of ethanol, 0.5 g of allyltrimethoxysilane, and 25 g of methacrylic acid into a 500 mL three-necked flask, stir, and when the temperature rises to 70 °C, add 0.15 g of azobisisoheptanonitrile and react for 8 h. Add 10 g of NaOH to the flask and continue to stir for 2 h to obtain the silicone-modified sodium acrylate resin.

[0022] The paint formulations are shown in Table 3.

[0023] table 3

[0024] materials Mass percentage / % nano silicon oxide 19 Silicone modified sodium polyacrylate 19 Formed substance 25 Forming Auxiliary 7.5 Accelerator 4 solvent 13 filler 5 acid 7.5

[0025] The prepared high-temperature-resistant, acid-resistant and alkali-resistant coating is applied by conventional construction methods such as brushing, wiping, manual roller construction, air spray gun or airless spray gun spraying, electrostatic spraying, thermal spraying, roller coating or dip coating. I...

Embodiment 3

[0029] In a 500 mL three-neck flask, add 200 mL propylene glycol monomethyl ether, 1.5 g gamma -A mixture of methacryloxypropyltrimethoxysilane and vinyltriethoxysilane, 30 g of methacrylic acid, stirring, when the temperature rises to 70 °C, add 0.15 g of benzoyl peroxide, react for 5 h, Add 15g of NaOH to the flask and continue to stir for 3 h to obtain the silicone-modified sodium polyacrylate resin.

[0030] The coating formulation is shown in Table 5.

[0031] table 5

[0032] materials Mass percentage / % nano silicon oxide 20 Silicone modified sodium polyacrylate 20 Formed substance 20 Forming Auxiliary 8 Accelerator 4 solvent 16 filler 6 acid 6

[0033] The prepared high-temperature-resistant, acid-resistant and alkali-resistant coating is applied by conventional construction methods such as brushing, wiping, manual roller construction, air spray gun or airless spray gun spraying, electrostatic sprayin...

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Abstract

The invention relates to the field of coating, and particularly relates to high temperature resistance acid-proof alkali-proof coating. The high temperature resistance acid-proof alkali-proof coating is obtained by uniformly mixing a mixture of nanometer silicon oxide, organic silicon modified sodium polyacrylate, a forming substance, a forming additive, an accelerant, a solvent, filler and acid, wherein the content of the nanometer silicon oxide is 50-100g/l, the content of the organic silicon modified sodium polyacrylate is 50-100g/l, the content of the forming substance is 80-100g/l, the content of the forming additive is 20-40g/l, the content of the accelerant is 10-20g/l, the content of the solvent is 30-80g/l, the content of the filler is 10-30g/l, the content of the acid is 25-40g/l, and the average particle diameter of the nanometer silicon oxide is less than 50 nanometers; and the pH value of the high temperature resistance acid-proof alkali-proof coating is in the range of 3 to13. The high temperature resistance acid-proof alkali-proof coating has good adhesion force, can be used at a high temperature, can resists acid, alkaline and corrosion, can resist cold in a cold working condition and meets the use conditions of beam hangers and drill stems, and the usage range pH value of the coating is in the range of 3 to 13.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a high temperature, acid and alkali resistant coating. Background technique [0002] Paint is a chemical mixture coating that can firmly cover the surface of objects for protection, decoration, marking and other special purposes. The relatively authoritative book "Painting Technology" in the Chinese coatings industry defines it as follows: "Painting is a material that can be coated on the surface of an object by different construction techniques to form a firm adhesion, a certain strength, and a continuous coating. Solid film. The film formed in this way is commonly called coating film, also known as paint film or coating.” It belongs to organic chemical polymer materials, and the formed coating film belongs to the type of polymer compound. According to the classification of modern chemical products, coatings belong to fine chemical products. Modern coatings are gradually becoming a cla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D163/00C09D125/14C09D133/04C09D175/04C09D133/02C09D7/12C09D5/14C09D5/08C08F230/08C08F220/06C08F220/04
Inventor 蒋灿
Owner 南通新昱化工有限公司
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