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Core-shell styrene-acrylic emulsion for priming paint and preparation method and application of core-shell styrene-acrylic emulsion

A core-shell styrene-acrylic emulsion and coating technology, applied in primers, coatings, etc., can solve the problems of poor film-forming compactness, poor water permeability, and poor adhesion, and achieve improved adhesion, high surface hardness, and improved hardness. Effect

Active Publication Date: 2019-03-29
GUANGDONG HENGGUANG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of the prior art, the present invention designs a core-shell styrene-acrylic emulsion for primer coating and its preparation method and application, which solves the problems of poor film-forming compactness, poor sealing performance, poor water permeability and adhesion in the existing primer emulsion. Bad question

Method used

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  • Core-shell styrene-acrylic emulsion for priming paint and preparation method and application of core-shell styrene-acrylic emulsion
  • Core-shell styrene-acrylic emulsion for priming paint and preparation method and application of core-shell styrene-acrylic emulsion
  • Core-shell styrene-acrylic emulsion for priming paint and preparation method and application of core-shell styrene-acrylic emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, core-shell styrene-acrylic emulsion for primer coatings, in parts by mass, includes the following components,

[0042] Main monomer: 36.5 parts of butyl acrylate (4 parts and 32.5 parts of core monomer and shell monomer respectively), 13.5 parts of styrene (12 parts and 1.5 parts of core monomer and shell monomer respectively) , 2.4 parts of hydroxyethyl acrylate (wherein the amount of core monomer and shell monomer is 0 part and 2.4 parts respectively) and 1 part of butyl methacrylate (wherein the amount of core monomer and shell monomer is 0 part and 1 part respectively );

[0043] Polar monomer: 0.2 parts of vinyltriethoxysilane;

[0044] Phosphate monomer: 0.4 parts of a mixture of 2-hydroxyethyl methacrylate phosphate (60wt%) and 2-hydroxyethyl methacrylate phosphodiester (40wt%);

[0045] Urea monomer: 0.5 parts of methacrylamide ethyl ethylene urea;

[0046] Short-chain reactive emulsifier: 0.3 parts of sodium allyloxyhydroxysulfonate;

[0047] ...

Embodiment 2

[0055] Embodiment 2, core-shell styrene-acrylic emulsion for primer coating, in parts by mass, includes the following components,

[0056] Main monomer: 36.5 parts of butyl acrylate (4 parts and 32.5 parts of core monomer and shell monomer respectively), 13.5 parts of styrene (12 parts and 1.5 parts of core monomer and shell monomer respectively) , 2.4 parts of hydroxyethyl acrylate (wherein the amount of core monomer and shell monomer is 0 part and 2.4 parts respectively) and 1 part of butyl methacrylate (wherein the amount of core monomer and shell monomer is 0 part and 1 part respectively );

[0057] Polar monomer: 0.2 parts of vinyltriethoxysilane;

[0058] Phosphate monomer: 0.4 parts of a mixture of 2-hydroxyethyl methacrylate phosphate (60wt%) and 2-hydroxyethyl methacrylate phosphodiester (40wt%);

[0059] Urea monomer: 0.5 parts of methacrylamide ethyl ethylene urea;

[0060] Short-chain reactive emulsifier: 0.3 parts of sodium allyloxyhydroxysulfonate;

[0061] L...

Embodiment 3

[0069] Embodiment 3, core-shell styrene-acrylic emulsion for primer coatings, in parts by mass, includes the following components,

[0070] Main monomer: 37 parts of butyl acrylate (3 parts of core monomer and 34 parts of shell monomer), 13.4 parts of styrene (9 parts of core monomer and 4.4 parts of shell monomer) , 2.4 parts of hydroxypropyl acrylate (wherein the amount of core monomer and shell monomer is 0 part and 2.4 parts respectively) and 1 part of butyl methacrylate (wherein the amount of core monomer and shell monomer is 0 part and 1 part respectively );

[0071] Polar monomer: 0.2 parts of vinyltriethoxysilane;

[0072] Phosphate monomer: 0.4 parts of a mixture of 2-hydroxyethyl methacrylate phosphate (60wt%) and 2-hydroxyethyl methacrylate phosphodiester (40wt%);

[0073] Urea-based monomer: 0.2 parts of allyl urea monomer;

[0074] Short-chain reactive emulsifier: 0.3 parts of sodium allyloxyhydroxysulfonate;

[0075] Long-chain reactive emulsifier: 0.7 parts ...

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Abstract

The invention relates to a core-shell styrene-acrylic emulsion for priming paint and belongs to the technical field of waterproof paint. The core-shell styrene-acrylic emulsion comprises the followingingredients in parts by mass: 5.07-30 parts of core monomer, 5.07-30 parts of shell monomer, 0.6-12 parts of emulsifier, 0.02-5 parts of initiator, 0.02-5 parts of chain transfer agent, 0.02-5 partsof pH buffering agent, 0.02-2 parts of first antifoamer, 0.02-2 parts of first preservative agent and 40-50 parts of deionized water; the core monomer is a main monomer, and the shell monomer comprises 4.93-20 parts of main monomer, 0.02-2.55 parts of polar monomer, 0.02-2.5 parts of phosphate monomer and 0.05-5 parts of ureido monomer. The invention further provides a preparation method of the core-shell styrene-acrylic emulsion for priming paint and application of the core-shell styrene-acrylic emulsion for priming paint in aqueous sealing priming paint. The priming paint prepared by using the core-shell styrene-acrylic emulsion has the advantages that the film forming property, sealing property and adhesive power of a paint film can be guaranteed, and the paint film can have relativelyhigh surface hardness and masking tape tear resistance.

Description

technical field [0001] The invention belongs to the technical field of waterproof coatings, and relates to a core-shell styrene-acrylic emulsion for primer coatings and a preparation method and application thereof. Background technique [0002] my country is a large manufacturing country. With the expansion of the economy, the national outbreak of environmental pollution and severe atmospheric smog has seriously threatened the environment on which the people of the country depend. VOC in coatings and adhesives is the cause of severe atmospheric smog. The chief culprit of smog is the most important cause of smog. Although the current performance of water-based coatings cannot exceed that of traditional solvent-based coatings, it has become the first choice for the development of coatings because of its non-pollution, environmental safety and compliance with national environmental protection policies. Inevitable trend, especially my country promulgated new regulations on the coa...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F212/08C08F220/20C08F230/08C08F230/02C08F220/60C08F2/38C08F2/26C09D133/08C09D5/00
CPCC09D133/08C08F2/26C08F2/38C08F220/18C09D5/002C08F220/1804C08F212/08C08F220/20C08F230/08C08F230/02C08F220/60
Inventor 杨士国肖中华高昊田海水焦健王亚际刘文超郭蕾赵玉涛王守优
Owner GUANGDONG HENGGUANG CHEM CO LTD
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