A kind of preparation method of core-shell type carboxyl benzene ring type emulsion polymer for coating

An emulsion polymer, core-shell type technology, applied in the field of building surface waterproofing and adhesion coatings, building materials, can solve the problems of insufficient comprehensive performance of coatings, etc., to achieve the goals of narrowing the molecular weight distribution range, wide application range, and good film-forming properties Effect

Active Publication Date: 2022-02-01
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the comprehensive properties of the coatings prepared in the above patents are not excellent enough, and it is necessary to further develop products with excellent comprehensive properties to meet market demand

Method used

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  • A kind of preparation method of core-shell type carboxyl benzene ring type emulsion polymer for coating

Examples

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example 1

[0050] A method for preparing a core-shell type carboxybenzene ring emulsion polymer for coatings. It is formed by polymerizing the following components. The total mass of raw materials is 1000 parts. The components and process parameters are as follows:

[0051] Aconitic acid: 3.0 parts

[0052] 4-methoxy-2-vinylaniline: 14.0 parts

[0053] Dicyclohexyl peroxydicarbonate: 0.25 parts

[0054] Sodium hypophosphite: 0.45 parts

[0055] Fumaric acid: 12 parts

[0056] Ethyl acrylate: 193 parts

[0057] 1-allyl-2-fluorobenzene: 223 parts

[0058] N-(4-vinylbenzyl)-N,N-dimethylamine: 23 parts

[0059] Dicumyl peroxide: 1.5 parts

[0060] Lauryl peroxide: 1.5 parts

[0061] Ascorbic acid: 2 parts

[0062] Di(methacryloyloxyethyl)phthalic anhydride ester: 6.0 parts

[0063] Triisopropanolamine: 2.2

[0064] Potassium hydroxide: 2.8 parts

[0065] Composition of trifluoroethyl acrylate and perfluorooctyl ethyl acrylate with a mass ratio of 1:1: 14 parts

[0066] The remain...

example 2

[0074] A method for preparing a core-shell type carboxybenzene ring emulsion polymer for coatings. It is formed by polymerizing the following components. The total mass of raw materials is 1000 parts. The components and process parameters are as follows:

[0075] Composition of carboxyl hydrophilic monomers itaconic acid and aconitic acid with a mass ratio of 3:1: 3.0 parts

[0076] 4-methoxy-2-vinylaniline: 14.0 parts

[0077] Dicyclohexyl peroxydicarbonate: 0.25 parts

[0078] Sodium hypophosphite: 0.45 parts

[0079] Aconitic acid: 12 parts

[0080] Ethyl acrylate: 192 parts

[0081] Composition of 1-allyl-2-fluorobenzene and 1-phenylvinylboronic acid with a mass ratio of 3:1: 223 parts

[0082] N-(4-vinylbenzyl)-N,N-dimethylamine: 23 parts

[0083] Dicumyl peroxide: 1.5 parts

[0084] Lauryl peroxide: 1.5 parts

[0085] Ascorbic acid: 2 parts

[0086] Di(methacryloyloxyethyl)phthalic anhydride ester: 6.0 parts

[0087] Triisopropanolamine: 2.2

[0088] Potassium ...

example 3

[0097] A method for preparing a core-shell type carboxybenzene ring emulsion polymer for coatings. It is formed by polymerizing the following components. The total mass of raw materials is 1000 parts. The components and process parameters are as follows:

[0098] Composition of carboxyl hydrophilic monomers itaconic acid and aconitic acid with a mass ratio of 3:1: 3.0 parts

[0099] 4-methoxy-2-vinylaniline: 14.0 parts

[0100] Dicyclohexyl peroxydicarbonate: 0.25 parts

[0101] Sodium hypophosphite: 0.45 parts

[0102] Aconitic acid: 12 parts

[0103] Ethyl acrylate: 192 parts

[0104] 2-allyl-2-fluorobenzene: 223 parts

[0105] N-(4-vinylbenzyl)-N,N-dimethylamine: 23 parts

[0106] Dicumyl peroxide: 1.5 parts

[0107] Lauryl peroxide: 2 parts

[0108] Ascorbic acid: 2 parts

[0109] Di(methacryloyloxyethyl)phthalic anhydride ester: 6.0 parts

[0110] Triisopropanolamine: 2.2

[0111] Potassium hydroxide: 2.8 parts

[0112] Composition of trifluoroethyl acrylate an...

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Abstract

The invention discloses a method for preparing a core-shell type carboxyl benzene ring emulsion polymer for coatings. The invention uses carboxyl strong hydrophilic monomers and benzene ring hydrophobic monomers as raw materials, and the whole preparation process goes through emulsification, constant temperature polymerization, and variable speed stirring. , pH adjustment and other processes to synthesize a polymer emulsion polymer coating, the hydrogen bond in the carboxyl molecule can strengthen the internal bonding force of the polymer, the strong hydrophilic effect strengthens the adhesion with the substrate, and the crosslinking agent is combined in a network The effect can significantly improve the mechanical properties between polymers, and prepare an excellent waterproof coating with good stability, high adhesion, heat resistance, tensile strength and long-lasting waterproof effect. The core-shell synergistic effect of the present invention combines the excellent characteristics of benzene ring, carboxyl, and fluorine functional monomers, so that the coating film has good bonding performance, heat resistance, oil and water repellency, and has a very wide application range.

Description

technical field [0001] The invention belongs to the technical field of building materials, relates to the field of building surface waterproofing and adhesion coatings, in particular to a method for preparing a core-shell type carboxyl benzene ring emulsion polymer for coatings. Background technique [0002] Nowadays, with the improvement of people's living standards and housing quality, the requirements for waterproofing are getting higher and higher. The traditional emulsion coating polymerization process is not only cumbersome and the final demulsification purification technology is also very unskilled. The polymer molecular chain obtained is a linear polymer chain with few branches and branches, making it difficult to prepare specific functional polymers. The scope of use of emulsion polymers is limited. The emulsion polymer prepared by the traditional process is slow to dry at room temperature to form a film, has poor leveling properties, and has small viscosity drops....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/04C08F212/14C09D151/00
CPCC08F265/04C09D151/003C08F212/14
Inventor 柯凯刘衍东姚恒
Owner HUBEI UNIV OF TECH
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