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Antirust and preparation method and application thereof

A rust inhibitor and solvent technology, used in anti-corrosion coatings, coatings, wax coatings, etc., can solve the problems of poor adhesion of anti-rust agents, shortened anti-corrosion time, poor durability, etc., to improve the ability of anti-corrosion, The effect of prolonging the rust prevention time and increasing the rust prevention time

Active Publication Date: 2017-09-15
上海特德拉化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the most commonly used anti-corrosion material on the market is anti-rust agent, which has a certain anti-corrosion effect, but a common problem is that the anti-rust agent has poor adhesion and is easy to rub off, which shortens the anti-corrosion time and has poor durability.

Method used

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Examples

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Effect test

preparation example Construction

[0045] In some embodiments, the preparation method includes: adding synergists, modifiers, and solvents into the reactor at a mass ratio of 1:0.01 to 2:40 to 100 and reacting at 20 to 80°C for 1 to 10 minutes. After 8 hours, after the reaction product is cooled, filter the product under reduced pressure and dry it at room temperature for 10-30 hours, then grind and sieve to obtain the synergist after surface modification.

[0046] In some embodiments, the modifier includes 3-aminopropyltrimethoxysilane, 3-glycidyloxypropyltrimethoxysilane, γ-methacryloxypropyltrimethoxy Silane, N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane, N-(β-aminoethyl)-γ-aminopropyltriethoxysilane, anilinomethyltriethoxy Any one or a combination of two or more of N-β-(aminoethyl)-γaminopropyltrimethoxysilane, γ-aminopropylmethyldiethoxysilane, but not limited to .

[0047] Modifiers are added to the antirust agent provided by the present invention, and the synergist is subjected to surface modificatio...

Embodiment 1

[0064] (1) Take by weighing 20g of sodium petroleum sulfonate and 100g of n-heptane in a 250mL beaker, stir for 15min with a magnetic stirrer at 1500rpm to form a dispersion;

[0065] (2) 10g of vaseline is melted into a liquid at 40° C., and then added to the dispersion prepared in step (1);

[0066] (3) Add 8g of nano-barite powder, 4g of 3-aminopropyltrimethoxysilane, and 800g of ethanol into the reaction kettle and react at 80°C for 8h. After the reaction product is cooled, filter the product under reduced pressure and store it at room temperature Dry for 30 hours, then grind and sieve to finally obtain nano-barite powder after surface treatment;

[0067] (4) Add the nano-barite powder that 6g triethanolamine, 8g step (3) make in the dispersion liquid that step (2) makes, then obtain stable dispersion liquid with the magnetic stirrer of 2000rpm for 20min, promptly obtain obtained Said antirust agent solution;

[0068] (5) Take the cleaned workpiece, apply the method of b...

Embodiment 2

[0071] (1) Weigh 17g dodecenylsuccinic acid, 4g phosphonic acid, 47g D80 mineral spirits and 30g n-butanol in a 250mL beaker, stir for 15min with a magnetic stirrer at 1500rpm;

[0072] (2) Weigh 2 g of methyl cellulose and 3 g of methacrylate into the dispersion prepared in step (1), and continue to stir at 1500 rpm for 10 min;

[0073] (3) Add 4g of nano-calcite powder, 1g of N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane, and 180g of ethanol into the reaction kettle and react at 60°C for 5h. After the reaction product is cooled, , filtered the product under reduced pressure and dried at room temperature for 14 hours, then milled and sieved to finally obtain nano calcite powder after surface treatment;

[0074] (4) Add the nanometer calcite powder that 4g Tween-80,4g step (3) make in the dispersion liquid that step (2) prepares and stir 20min with the magnetic stirrer of 2000rpm to obtain stable dispersion liquid subsequently, promptly obtain described Rust inhibitor sol...

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PUM

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Abstract

The invention discloses an antirust and a preparation method and an application thereof. The antirust comprises corrosion inhibitor, film-forming agent, dispersant, synergist with active groups on the surface, and solvent; the weight ratio of the corrosion inhibitor, the film-forming agent, the dispersant and the synergist with the active groups on the surface is 1:0.005 to 0.5:0.002 to 0.4:0.001 to 0.3, and the weight ratio of the solvent to the corrosion inhibitor is 100:0.01 to 50. Modifier is added into the antirust disclosed by the invention to carry out surface modification treatment on the synergist, so that the surface of the synergist is grafted with the active functional groups, such as -OH and -NH3, consequently, the binding force between the antirust and a base material is enhanced, the antirust time is prolonged, and thereby the antirust effect is enhanced. The antirust disclosed by the invention is basically applicable to the surfaces of various iron-based, aluminium-based and copper-based materials, moreover, brushed, sprayed or immersed base materials have excellent corrosion resistance, durability and high adhesive force; the process of the preparation method is mature, the production cost is low, the production process is green and harmless, and therefore the preparation method is suitable for popularization and application on a large scale.

Description

technical field [0001] The invention relates to an antirust material, in particular to an antirust and its preparation method, as well as its formed coating and application, belonging to the technical field of protective materials. Background technique [0002] Anti-corrosion is to use special anti-corrosion materials on the surface of the metal substrate to protect the substrate from external factors such as sewage, oil, atmospheric oxidation, acid, alkali, salt and other chemical corrosion. [0003] According to the statistics of relevant departments, the metal loss due to corrosion is as high as hundreds of millions of yuan every year, and the corrosion of metal materials will also affect its own performance and subsequent processing. [0004] At present, the most commonly used anti-corrosion material on the market is anti-rust agent, which has a certain anti-corrosion effect, but a common problem is that the anti-rust agent has poor adhesion and is easy to rub off, which...

Claims

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Application Information

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IPC IPC(8): C09D191/06C09D5/08C09D7/12C09D4/06C09D4/02C09D191/00C09D183/04C23F11/10
CPCC08K3/04C08K3/34C08K5/092C08K5/17C08K5/42C08K5/5317C08K9/06C08K13/06C08K2003/265C08K2003/3045C08K2201/011C09D4/06C09D5/08C09D183/04C09D191/00C09D191/06C23F11/10C08L39/06C08K3/36
Inventor 张丹黄婵娟郑磊郑君红
Owner 上海特德拉化工有限公司
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