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Matte finishing pure acrylic emulsion with excellent water resistance and stain resistance and preparation method thereof

A pure acrylic emulsion, anti-staining technology, applied in biocide-containing paints, anti-fouling/underwater coatings, coatings, etc., can solve the problems of unspecified stain resistance, low gloss, affecting the stability of varnishes and water resistance and other performance issues, to achieve the effect of controllable gloss, simple raw material process, and excellent stain resistance

Inactive Publication Date: 2020-06-19
广东巴德富新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are also products that use pure organic materials to synthesize matte emulsion as a finish paint. Chinese patent CN106608943A synthesized a single-component matte finish emulsion with controllable gloss by adjusting the neutralization degree of the nuclear laminic acid functional monomer , the emulsion has excellent water whitening resistance, low gloss, and good storage stability, but it does not show that its stain resistance can meet the HG / T5065-2016 standard; Chinese patent CN 109897490A introduces a matte high stain resistance finish varnish and its preparation method, although its stain resistance is excellent, the stain resistance is mainly provided by the nano stain resistance agent and composite inorganic adhesive added in the varnish, and these additives with poor compatibility with the emulsion will affect The stability and water resistance of varnishes, so there is an urgent need in the market for a matte finish emulsion with excellent water resistance, excellent stain resistance, low gloss, good stability, and strong versatility to meet market demand

Method used

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  • Matte finishing pure acrylic emulsion with excellent water resistance and stain resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of pure acrylic emulsion with matt finish and excellent water resistance and stain resistance, made of the following raw materials in parts by weight: 30 parts of methyl methacrylate, 10 parts of isooctyl acrylate, and 15 parts of butyl methacrylate Parts, silicone additives (vinyltrimethoxysilane, methacryloxypropyltrimethoxysilane) 3 parts, crosslinking monomer (acrylamide, hydroxyethyl methacrylate) 3 parts, carboxyl function 3 parts of monomer (acrylic acid), 2 parts of emulsifier (sodium lauryl sulfate, reactive emulsifier COPS-1 of Rhodia Company, reactive emulsifier SR-10 of Japan Adike Company), initiator (Ammonium persulfate) 1 part, film-forming aid (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate) 5 parts, pH regulator (ammonia water) 5 parts, deionized 65 parts of water.

[0029] The preparation method of the pure acrylic emulsion with excellent water resistance and stain resistance, comprising the following steps:

[0030] 1) Under normal temperatu...

Embodiment 2

[0038] A kind of pure acrylic emulsion with excellent water resistance and stain resistance, made of the following raw materials in parts by weight: 15 parts of methyl methacrylate, 5 parts of isooctyl acrylate, and 13 parts of butyl methacrylate Parts, silicone additives (vinyl triethoxysilane, vinyl tris (β-methoxyethoxy) silane) 2 parts, crosslinking monomer (acrylamide, ethylene glycol dimethacrylate) 5 parts, 2 parts of carboxyl functional monomer (methacrylic acid), emulsifier (sodium dodecylbenzene sulfonate, sodium vinyl sulfonate, reactive emulsifier COPS-2 of Rhodia Company, Japan Adico The company's reactive emulsifier SR-10) 1.5 parts, initiator (potassium persulfate) 0.9 part, film-forming aid (Eastman's OE-300) 1 part, pH regulator (ammonia and sodium hydroxide) 3 parts, 55 parts of deionized water.

[0039] The preparation method of the pure acrylic emulsion with excellent water resistance and stain resistance, comprising the following steps:

[0040] 1) Under...

Embodiment 3

[0048] A kind of pure acrylic emulsion with matt finish and excellent water resistance and stain resistance, made of the following raw materials in parts by weight: 25 parts of methyl methacrylate, 8 parts of isooctyl acrylate, and 10 parts of butyl methacrylate 1 part, silicone additive (vinyltrimethoxysilane, γ-(2,3-glycidyloxy) propyltrimethoxysilane) 1 part, crosslinking monomer (acrylamide, glycidyl methacrylate ) 0.5 parts, 4 parts of carboxyl functional monomers (methacrylic acid, itaconic acid), emulsifier (sodium lauryl sulfate, alkyl polyoxyethylene ether, reactive emulsifier SR-10 of Japan Adike Company , SR-20) 3 parts, initiator (sodium persulfate) 0.5 parts, film-forming aid (propylene glycol phenyl ether) 3 parts, pH regulator (ammonia, 2-amino-2-methyl-1-propanol) 4 parts, 60 parts of deionized water.

[0049] The preparation method of the pure acrylic emulsion with excellent water resistance and stain resistance, comprising the following steps:

[0050] 1) U...

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Abstract

The invention discloses a matte finishing pure acrylic emulsion with excellent water resistance and stain resistance. The matte finishing pure acrylic emulsion is prepared from the following raw materials in parts by weight: 15-30 parts of methyl methacrylate, 5-15 parts of 2-ethylhexyl acrylate, 10-15 parts of butyl methacrylate, 1-3 parts of an organosilicon assistant, 0.5-5 parts of a crosslinking monomer, 2-4 parts of a carboxyl functional monomer, 1-3 parts of an emulsifier, 0.5-1 part of an initiator, 1-5 parts of a coalescing agent, 1-5 parts of a pH regulator and 55-65 parts of deionized water. The pure acrylate emulsion provided by the invention has excellent water resistance, water white resistance, stain resistance, yellowing resistance and controllable glossiness, also has goodstability and universality, and is an urgently lacked product for matte finishing varnish in the market at present.

Description

technical field [0001] The invention relates to a pure acrylic emulsion with excellent water resistance and stain resistance and a preparation method thereof. Background technique [0002] Finish varnish is the first protective barrier of building exterior wall coatings. Products with excellent performance are more and more popular and valued by the market. As a kind of finish paint, matte finish varnish can bring people comfort, Elegant, soft feeling and much favored by the market. Most of the traditional matte finish is to add matting powder to the paint or emulsion formula, or to blend two or more mutually immiscible systems to achieve a matte effect, although a series of matte finishes can be synthesized Matte finish, but the varnish is prone to problems such as delamination and water separation during storage. During use, there will also be problems such as inconsistent gloss, poor water resistance, whitish or bluish paint film, etc., which greatly limits its use. The...

Claims

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Application Information

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IPC IPC(8): C09D151/00C09D5/16C08F265/06C08F2/26C08F2/30C08F220/14C08F220/06C08F220/56C08F220/28C08F220/18C08F222/14C08F220/32C08F230/08
CPCC08F220/14C08F265/06C09D5/1668C09D151/003C08F2/26C08F2/30C08F220/06C08F220/56
Inventor 朱超唐兵杨文涛
Owner 广东巴德富新材料有限公司
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