Aniline trimer modified water-based polyvinylidene chloride heavy-duty anti-corrosion coating and preparation method thereof

A polyvinylidene chloride, aniline trimer technology, applied in anti-corrosion coatings, coatings and other directions, can solve the problems of poor anti-corrosion coatings and other problems, and achieve the effects of large particle size of latex, control of polymerization reaction speed, and high safety factor

Active Publication Date: 2021-11-26
ANHUI UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a kind of aniline trimer modified waterborne polyvinylidene chloride heavy-duty coating and its preparation method, to solve the anticorrosion problem of polyvinylidene chloride preparation in the prior art Technical problems of poor coating effect

Method used

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  • Aniline trimer modified water-based polyvinylidene chloride heavy-duty anti-corrosion coating and preparation method thereof
  • Aniline trimer modified water-based polyvinylidene chloride heavy-duty anti-corrosion coating and preparation method thereof
  • Aniline trimer modified water-based polyvinylidene chloride heavy-duty anti-corrosion coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of preparation method of aniline trimer modified waterborne polyvinylidene chloride heavy-duty coating comprises the following steps:

[0035] (1) 45g of glycidyl methacrylate (GMA) and 86g of aniline trimer (AT) were ultrasonically dispersed in 300mL of propylene glycol methyl ether solvent, under the protection of nitrogen, the temperature was raised to 70°C, and after 4 hours of reaction, vacuum distillation ( 70°C, -0.09MPa) to remove the solvent to obtain the functional monomer A-GMA containing aniline trimer structure;

[0036] (2) Prepare the reaction raw materials for use: vinylidene chloride monomer: 700g; functional monomer A-GMA: 50g; acrylate monomer: 30g of isooctyl acrylate; 20g of acrylic acid; emulsifier: dodecyl Sodium sulfate 10g, octylphenol polyoxyethylene ether 10g; co-stabilizer: hexadecane 10g; initiator: ammonium persulfate 3.7g, sodium bisulfite 1.3g; deionized water: 1kg.

[0037] (3) Add 700g of vinylidene chloride monomer, 50g of func...

Embodiment 2

[0042] A kind of preparation method of aniline trimer modified waterborne polyvinylidene chloride heavy-duty coating comprises the following steps:

[0043] (1) The preparation of functional monomer A-GMA is the same as that of Example 1 step (1);

[0044] (2) Prepare the reaction raw materials for use: vinylidene chloride monomer: 800g; functional monomer A-GMA: 80g; acrylate monomer: 25g of lauryl methacrylate, 14g of sec-butyl acrylate, methacrylic acid 6g of isobornyl ester; 30g of acrylic acid; emulsifier: 10g of sodium lauryl sulfate, 10g of octylphenol polyoxyethylene ether; co-stabilizer: 10g of hexadecane; initiator: 5.6g of sodium persulfate, 2.4g of sodium sulfite; Deionized water: 1.2kg;

[0045] (3) Add 800g of vinylidene chloride monomer, 80g of functional monomer A-GMA, 45g of acrylate monomer, 30g of acrylic acid and 10g of hexadecane in order in the reaction kettle, stir and mix evenly;

[0046] (4) Add 20 g of composite emulsifier into 1.2 kg of deionized w...

Embodiment 3

[0050] A kind of preparation method of aniline trimer modified waterborne polyvinylidene chloride heavy-duty coating comprises the following steps:

[0051] (1) Preparation of functional monomer A-GMA: same as Example 1 step (1);

[0052] (2) Prepare the reaction raw materials for use: vinylidene chloride monomer: 800g; functional monomer A-GMA: 100g; acrylate monomer: 20g of sec-butyl acrylate, 15g of isooctyl acrylate, methacrylic acid- 2-ethylhexyl ester 15g; unsaturated fatty acid monomer: acrylic acid 40g; emulsifier: sodium lauryl sulfate 30g, octylphenol polyoxyethylene ether 15g; co-stabilizer: cetyl alcohol 20g; initiator: Hydrogen peroxide 1.7g, ascorbic acid 6.3g; deionized water: 1.5kg;

[0053] (3) Add 800g of vinylidene chloride monomer, 100g of functional monomer A-GMA, 50g of acrylate monomer, 40g of acrylic acid and 20g of cetyl alcohol in order in the reaction kettle, stir and mix evenly;

[0054] (4) Add 45g of composite emulsifier into 1.5kg of deionized ...

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Abstract

The invention discloses an aniline trimer modified water-based polyvinylidene chloride heavy-duty anti-corrosion coating and a preparation method thereof, belonging to the field of polymer materials, using aniline trimer (AT) and glycidyl methacrylate (GMA) as Raw materials, first synthesize a functional monomer A-GMA containing aniline trimer structure, and then use vinylidene chloride as the main comonomer, with functional monomer A-GMA, acrylate monomer and acrylic acid , using ionic emulsifier and non-ionic emulsifier as composite emulsifier, oxidation-reduction low temperature triggers monomer mini-emulsion copolymerization to obtain aniline trimer modified vinylidene chloride copolymer latex, adding film-forming aids and defoamers The water-based polyvinylidene chloride heavy-duty anti-corrosion coating modified by aniline trimer is obtained by uniformly mixing the leveling agent and the thickener. The invention realizes miniemulsion polymerization at low temperature, has the characteristics of easy control of reaction conditions, good emulsion stability, etc., and has excellent properties such as high adhesion, oxygen barrier, moisture resistance, and corrosion resistance when coated on metal surfaces.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an aniline trimer modified water-based polyvinylidene chloride heavy-duty anti-corrosion coating and a preparation method thereof. Background technique [0002] Volatile organic compounds (VOC), as one of the important causes of haze, are the focus of current national air pollution control. Due to the large amount of volatile organic compounds used as solvents in traditional solvent-based coatings, their use is increasingly restricted. Facing the severe environmental protection situation, the state has successively issued policies and regulations to guide paint production and paint coating enterprises to develop in the direction of water-based, high-solids and other environmentally friendly. At present, water-based anti-corrosion coatings mainly use water-based alkyd resin, water-based acrylic resin, water-based polyurethane resin and water-based epoxy resin as the main film-for...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C09D127/08C09D5/08C08F214/08C08F220/36C08F220/18C08F220/06C08F2/26C08F2/30C08F4/40
CPCC08F2/26C08F2/30C08F4/40C08F214/08C08F220/06C08F220/18C08F220/36C09D5/08C09D127/08
Inventor杨建军谢中平王思学程传政吴庆云樊荣琦杨艳红吴明元张建安刘久逸
OwnerANHUI UNIVERSITY