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A water-based environment-friendly film-forming material applied to the surface of steel fasteners and its preparation method and application

A film-forming material and fastener technology, which is applied in the field of water-based environmentally friendly film-forming materials and their preparation, and achieves the effects of high hardness, stable operability, and suitable for large-scale production.

Active Publication Date: 2018-02-06
GUANGZHOU HENGLONGYU CHEM SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional metal coating protection methods have a great impact on the environment, such as chromium passivation, phosphating and organic solvent volatilization, etc.

Method used

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  • A water-based environment-friendly film-forming material applied to the surface of steel fasteners and its preparation method and application
  • A water-based environment-friendly film-forming material applied to the surface of steel fasteners and its preparation method and application

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preparation example Construction

[0037] The invention provides a water-based environment-friendly film-forming material applied to the surface of steel fasteners and its preparation method and application. The preparation method of the water-based environment-friendly film-forming material applied to the surface of steel fasteners comprises the following steps:

[0038] A method for preparing a water-based environment-friendly film-forming material applied to the surface of a steel fastener, comprising the following steps:

[0039] 1) Synthesis of shell emulsion: get 20-30 parts of vinyl monomer I, 0.5-1.5 parts of initiator, 1-3 parts of molecular weight adjustment, 0.5-1.5 parts of composite emulsifier, 1-3 parts of pH Regulator and make up to 100 parts of water, react to make shell emulsion;

[0040] 2) Synthesis of core-shell emulsion: Add 1-2 parts of initiator and 50-90 parts of vinyl monomer II to the shell emulsion obtained in step 1), and react to obtain core-shell emulsion, which is applied to steel...

Embodiment 1

[0061] 1) Synthesis of shell emulsion:

[0062] i) Dissolving 8 grams of ammonium persulfate in 1158 grams of water and raising the temperature to 83° C., feeding nitrogen gas for 30 minutes to remove oxygen to obtain an initiator solution;

[0063] ii) Add 500 grams of deionized water, 2 grams of sodium acrylamido isopropyl sulfonate, 8 grams of branched chain alkyl alcohol polyoxyethylene ether phosphoric acid monoester, 272 grams of methyl methacrylate, 48 grams of N-methylolacrylamide, 40 grams of methacrylic acid, 50 grams of butyl methacrylate, 50 grams of acrylate-β-hydroxypropyl ester, and 20 grams of 3-mercaptopropanol are pre-emulsified to obtain a pre-emulsified solution;

[0064] iii) Add the pre-emulsified solution dropwise to the initiator solution at 80-85°C by "starvation method" for 90 minutes to react, add ammonia water to adjust the pH to 7.5-8.0, and keep it warm for 30 minutes to obtain the shell emulsion;

[0065] 2) Synthesis of core-shell emulsion:

...

Embodiment 2

[0069] 1) Synthesis of shell emulsion:

[0070] i) Dissolving 8 grams of ammonium persulfate in 1158 grams of water and raising the temperature to 83° C., feeding nitrogen gas for 30 minutes to remove oxygen to obtain an initiator solution;

[0071] ii) Add 500 grams of deionized water, 4 grams of sodium alkenyl phosphate, 6 grams of branched chain alkyl alcohol polyoxyethylene ether phosphoric acid monoester, 272 grams of methyl methacrylate, 48 grams of (meth)acrylic acid in the head tank Glycidyl ester, 40 grams of carboxyethyl acrylate (β-CEA), 50 grams of butyl methacrylate, 50 grams of methacrylate-β-hydroxypropyl ester, and 20 grams of 3-mercaptopropanol were pre-emulsified to obtain pre-emulsified emulsified solution;

[0072] iii) Add the pre-emulsified solution dropwise to the initiator solution at 80-85°C by "starvation method" for 90 minutes to react, add ammonia water to adjust the pH to 7.5-8.0, and keep it warm for 30 minutes to obtain the shell emulsion;

[0...

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Abstract

The invention provides a water-based environment-friendly film-forming material applied to the surface of steel fasteners and its preparation method and application. Specifically, the preparation method of the water-based environment-friendly film-forming material applied to the surface of steel fasteners includes shell emulsion The synthesis of the synthetic and core-shell emulsion, that is to use the vinyl monomer I of ethylenic carboxylic acid, cross-linking functional group monomer and (C1‑C10) alcohol ester to prepare the shell emulsion; (C1‑C10) Alcohol ester, phosphate ester functional monomer, one or more than two kinds of vinyl monomers mixed with styrene to synthesize core-shell emulsion, that is, water-based and environmentally friendly film-forming applied to the surface of steel fasteners Material; the water-based environment-friendly film-forming material applied to the surface of steel fasteners has high adhesion to the substrate, corrosion resistance, oxidation resistance and wear resistance.

Description

technical field [0001] The invention relates to the technical field of water-based metal surface coating materials, in particular to a water-based environment-friendly film-forming material applied to the surface of steel fasteners, a preparation method and application thereof. Background technique [0002] It is estimated that the direct economic loss caused by metal corrosion accounts for about 3% to 4% of the gross national product. Anti-corrosion technology is very important in the fields of chemical industry, petroleum, electric power, machinery, metal processing, transportation, nuclear energy and aerospace. At present, the main anti-corrosion measures include the selection of corrosion-resistant materials, cathodic protection, anodic protection, dielectric treatment, corrosion inhibitors, coating protection, oxidation treatment, etc. Among them, the coating protection method is the most widely used and most effective measure. [0003] There are many methods of metal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/34C08F212/08C08F220/58C08F220/06C08F220/28C08F220/32C08F216/14C08F230/02C08F222/16C09D133/12C09D5/08
Inventor 徐希恒
Owner GUANGZHOU HENGLONGYU CHEM SCI & TECH
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