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Core-shell styrene-acrylic emulsion for primer coating and its preparation method and application

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

Active Publication Date: 2022-02-15
GUANGDONG HENGGUANG CHEM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • Core-shell styrene-acrylic emulsion for primer coating and its preparation method and application
  • Core-shell styrene-acrylic emulsion for primer coating and its preparation method and application
  • Core-shell styrene-acrylic emulsion for primer coating and its preparation method and application

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

A core-shell styrene-acrylic emulsion for primer coatings belongs to the technical field of waterproof coatings, and includes the following components in parts by mass: 5.07-30 parts of core monomers, 5.07-30 parts of shell monomers, 0.6-12 parts of emulsifiers, 0.02-5 parts of initiator, 0.02-5 parts of chain transfer agent, 0.02-5 parts of pH buffer, 0.02-2 parts of first defoamer, 0.02-2 parts of first preservative and 40-50 parts of deionized water; The core monomer is the main monomer, and the shell monomer includes 4.93-20 parts of the main monomer, 0.02-2.55 parts of the polar monomer, 0.02-2.5 parts of the phosphate ester monomer and 0.05-2.5 parts of the urea monomer 5 servings. The present invention also provides the preparation method of the core-shell styrene-acrylic emulsion for the primer coating and the application of the core-shell styrene-acrylic emulsion for the primer coating in the water-based sealing primer coating, and the primer coating made of the core-shell styrene-acrylic emulsion It can not only ensure the film-forming, sealing and adhesion of the paint film, but also make the paint film have higher surface hardness and anti-tearing ability of masking paper.

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] Although the current performance of water-based coatings cannot exceed that of traditional solvent-based coatings, it has become an inevitable trend in the development of coatings because of its non-pollution, environmental safety and compliance with national environmental protection policies. In particular, my country promulgated new regulations for the coatings industry at the end of 2014. And after the new regulations came into effect on February 1, 2015, water-based coatings or the water-based coatings have become the key to the sustainable development of enterprises. The original solvent-based coating companies have been gradually eliminated, and many cities have promulgated stricter regulations accordingly. The use of solvent-base...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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