CN102399490A - Waterborne two-component polyurethane transparent light varnish and preparation method and application thereof - Google Patents
Waterborne two-component polyurethane transparent light varnish and preparation method and application thereof Download PDFInfo
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- CN102399490A CN102399490A CN2011103385479A CN201110338547A CN102399490A CN 102399490 A CN102399490 A CN 102399490A CN 2011103385479 A CN2011103385479 A CN 2011103385479A CN 201110338547 A CN201110338547 A CN 201110338547A CN 102399490 A CN102399490 A CN 102399490A
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Abstract
The invention belongs to the field of chemical industry, and particularly discloses waterborne two-component polyurethane transparent light varnish as well as a preparation method and an application thereof, and the varnish comprises the following components by weight: 64.4-80 parts of polymer emulsion containing hydroxy, 5-18 parts of polyurethane emulsion, 5-7 parts of acrylic acid emulsion, 2-7 parts of alcohol and ethers solvents, 0.4-0.9 parts of defoaming auxiliary agents, 0.4-0.7 parts of leveling agents and 1-2 parts of thickening agents. The two-component polyurethane transparent light varnish has the characteristics of good fullness, high luster and good leveling performance.
Description
Technical field
The present invention relates to chemical technology field, more particularly, the present invention relates to a kind of woodenware, metal, plastics, glass and use varnish.
Background technology
Paint or coating all are the finishing material that generally adopt during the modern humans lives.At present, this finishing material is to be main with solvent based coating mostly, because solvent based coating contains a large amount of volatilizable compounds (VOC), when construction, the VOC volatilization can damage workmen's health, but also can damage the ozone layer pollutant atmosphere.Now, the whole world begins to advocate uses water-borne coatings to carry out environmentally-friendly coating, but light class coating has run into very big resistance owing to receive technology limitation.Mainly be that water-based light varnish exists that fullness ratio is poor, gloss is low and problem such as leveling characteristics difference.A kind of aqueous double-component polyurethane varnish and preparation method thereof is disclosed like Chinese patent CN102051112A; The composition of raw materials of this aqueous double-component polyurethane varnish is made up of component one and component two; Component one comprises 55～65% hydroxyl polyurethane dispersion-ss, 15～18% water, 0.2～0.5% Uvex flow agent, 0.5～0.8% auxiliary rheological agents, 0.5～0.8% nano silicon dioxide particles, 0.1～0.3% skimmer, 0.3～0.5% deaerating agent, 0.1～0.3% thickening material, 0.4～0.6% film coalescence aid, 0.2～0.5% water-based siccative and 0.5～1.5% tetrafluoroethylene wax; Component two comprises 15～20% POLYMETHYLENE POLYPHENYLISOCYANATE and 1～3% degassing solvent, and still there are the problems referred to above in this varnish.
Summary of the invention
To above-mentioned technical problem, the technical problem that the present invention need solve provides that a kind of fullness ratio is good, gloss is high and the transparent light varnish of the aqueous double-component polyurethane of good leveling property.
For solving the problems of the technologies described above; Technical scheme of the present invention is achieved in that the transparent light varnish of a kind of aqueous double-component polyurethane; The weight percent of each component consists of, polymer emulsion 64.4-80 part of hydroxyl, polyaminoester emulsion 5-18 part, ACRYLIC EMULSION 5-7 part, pure ether solvent 2-7 part, froth breaking auxiliary agent 0.4-0.9 part, leveling auxiliary agent 0.4-0.7 part, thickening material 1-2 part.
Described polymer emulsion is the XP2651 of a Beyer Co., Ltd product; Polyaminoester emulsion is the XP2593-1 product of Beyer Co., Ltd; ACRYLIC EMULSION is the CUR99 product of Opel enlightening company, and pure ether solvent is a Ucar 35 butyl ether product, and the froth breaking auxiliary agent is a kind of or mixture in 810 and No. 500 products of Di Gao company; Leveling auxiliary agent is a kind of or mixture in 028 and No. 333 product of Bi Ke company; Thickening material is the WT-105A product of the modest company of moral, and in addition, above-claimed cpd or mixture also can have been bought arbitrarily on Chemical market.
The present invention also provides the preparation method of the above-mentioned transparent light varnish of aqueous double-component polyurethane, in dispersion tank, drops into polymer emulsion, polyaminoester emulsion, the ACRYLIC EMULSION of hydroxyl, starts dispersion tank; 800-1200 rev/mins; Drop into partly froth breaking auxiliary agent while stirring, forward high gear to and disperseed 15-20 minutes, be uniformly dispersed; After detecting no oily nest; Pure ether solvent, leveling auxiliary agent and another part froth breaking auxiliary agent, thickening material are dropped in the dispersion tank, behind reinforced the finishing, disperse promptly to get in 5-8 minutes.
The applicable cases of the transparent light varnish of above-mentioned aqueous double-component polyurethane is: special-purpose varnish solidifying agent mixed by polyurethane transparent light varnish and varnish is used in the construction of water formation, and the weight ratio of polyurethane transparent light varnish, varnish solidifying agent and water is 100: (15-18): (10-20).
In the varnish solidifying agent, the weight percent of each component in the varnish solidifying agent consists of, hexamethylene diisocyanate HDI prepolymer 59.7-80 part, 1-Methoxy-2-propyl acetate 20-40 part, three hydroxyl Methoxy acetic acid ester 20-40 parts, dewatering agent 0.2-0.3 part.Described hexamethylene diisocyanate HDI prepolymer is No. 2655 products of Beyer Co., Ltd, and dewatering agent is the AD-38B product of great big company, and in addition, above-claimed cpd or mixture also can have been bought arbitrarily on Chemical market.
Compared with prior art; Double-component polyurethane transparent light varnish of the present invention; The weight percent of each component consists of, polymer emulsion 64.4-80 part of hydroxyl, polyaminoester emulsion 5-18 part, ACRYLIC EMULSION 5-7 part, pure ether solvent 2-7 part, froth breaking auxiliary agent 0.4-0.9 part, leveling auxiliary agent 0.4-0.7 part, thickening material 1-2 part.The bright varnish of selling on this products and marketing of other aqueous transparent lights has been compared following advantage:
1, transparency is good, can clearly highlight the complexion of substrate surface;
2, glossiness is high, uses the photometer of German BYK company, and during 60 ° of angular measurements, basic gloss can reach 90～95 °
3, fullness ratio is good, can cover in very thick sand trace;
4, good leveling property owing to selected appropriate flow agent, makes this product that levelling and later stage flow leveling in good early stage arranged, and whole paint film mirror effect is very good.
Embodiment
Purport of the present invention is that the weight percent of regulating each component in the transparent light varnish of aqueous double-component polyurethane is formed, and selects appropriate preparation method, draws that fullness ratio is good, gloss is high and the double-component polyurethane transparent light varnish of good leveling property.Below in conjunction with embodiment content of the present invention is done further to detail, mentioned content is not to qualification of the present invention among the embodiment, and Selection of technological conditions such as temperature, time can be suited measures to local conditions and the result is not had substantial effect among the preparation method.
Embodiment 1
The transparent light varnish of a kind of aqueous double-component polyurethane; The weight percent of each component consists of, 65 parts of the polymer emulsions of hydroxyl, 17 parts of polyaminoester emulsions, ACRYLIC EMULSION 5-7 part, pure ether solvent 2-7 part, froth breaking auxiliary agent 0.4-0.9 part, leveling auxiliary agent 0.4-0.7 part, thickening material 1-2 part.In the preparation method, in dispersion tank, drop into polymer emulsion, polyaminoester emulsion, the ACRYLIC EMULSION of hydroxyl, start dispersion tank; 900 rev/mins, drop into partly froth breaking auxiliary agent while stirring, forward high gear to and disperseed 15-20 minutes; Be uniformly dispersed, detect no oily nest after, pure ether solvent, leveling auxiliary agent and another part froth breaking auxiliary agent, thickening material are dropped in the dispersion tank; Behind reinforced the finishing, disperse promptly to get in 5-8 minutes.In construction application; Special-purpose varnish solidifying agent mixed by polyurethane transparent light varnish and varnish is used in the construction of water formation; The weight ratio of polyurethane transparent light varnish, varnish solidifying agent and water is 100:15:13; This construction is used in the woodenware surface with varnish, and the performance that this product of warp detection can reach is as expressing shown in 1.
Embodiment 2
The transparent light varnish of a kind of aqueous double-component polyurethane; The weight percent of each component consists of, 70 parts of the polymer emulsions of hydroxyl, 15 parts of polyaminoester emulsions, ACRYLIC EMULSION 5-7 part, pure ether solvent 2-7 part, froth breaking auxiliary agent 0.4-0.9 part, leveling auxiliary agent 0.4-0.7 part, thickening material 1-2 part.In the preparation method, in dispersion tank, drop into polymer emulsion, polyaminoester emulsion, the ACRYLIC EMULSION of hydroxyl, start dispersion tank; 900 rev/mins, drop into partly froth breaking auxiliary agent while stirring, forward high gear to and disperseed 15-20 minutes; Be uniformly dispersed, detect no oily nest after, pure ether solvent, leveling auxiliary agent and another part froth breaking auxiliary agent, thickening material are dropped in the dispersion tank; Behind reinforced the finishing, disperse promptly to get in 5-8 minutes.In construction application; Special-purpose varnish solidifying agent mixed by polyurethane transparent light varnish and varnish is used in the construction of water formation; The weight ratio of polyurethane transparent light varnish, varnish solidifying agent and water is 100:16:15; This construction is used in the woodenware surface with varnish, and the performance that this product of warp detection can reach is as expressing shown in 1.
Embodiment 3
The transparent light varnish of a kind of aqueous double-component polyurethane; The weight percent of each component consists of, 75 parts of the polymer emulsions of hydroxyl, 13 parts of polyaminoester emulsions, ACRYLIC EMULSION 5-7 part, pure ether solvent 2-7 part, froth breaking auxiliary agent 0.4-0.9 part, leveling auxiliary agent 0.4-0.7 part, thickening material 1-2 part.In the preparation method, in dispersion tank, drop into polymer emulsion, polyaminoester emulsion, the ACRYLIC EMULSION of hydroxyl, start dispersion tank; 900 rev/mins, drop into partly froth breaking auxiliary agent while stirring, forward high gear to and disperseed 15-20 minutes; Be uniformly dispersed, detect no oily nest after, pure ether solvent, leveling auxiliary agent and another part froth breaking auxiliary agent, thickening material are dropped in the dispersion tank; Behind reinforced the finishing, disperse promptly to get in 5-8 minutes.In construction application; Special-purpose varnish solidifying agent mixed by polyurethane transparent light varnish and varnish is used in the construction of water formation; The weight ratio of polyurethane transparent light varnish, varnish solidifying agent and water is 100:17:17; This construction is used in the woodenware surface with varnish, and the performance that this product of warp detection can reach is as expressing shown in 1.
Embodiment 4
The transparent light varnish of a kind of aqueous double-component polyurethane; The weight percent of each component consists of, 80 parts of the polymer emulsions of hydroxyl, 10 parts of polyaminoester emulsions, ACRYLIC EMULSION 5-7 part, pure ether solvent 2-7 part, froth breaking auxiliary agent 0.4-0.9 part, leveling auxiliary agent 0.4-0.7 part, thickening material 1-2 part.In the preparation method, in dispersion tank, drop into polymer emulsion, polyaminoester emulsion, the ACRYLIC EMULSION of hydroxyl, start dispersion tank; 900 rev/mins, drop into partly froth breaking auxiliary agent while stirring, forward high gear to and disperseed 15-20 minutes; Be uniformly dispersed, detect no oily nest after, pure ether solvent, leveling auxiliary agent and another part froth breaking auxiliary agent, thickening material are dropped in the dispersion tank; Behind reinforced the finishing, disperse promptly to get in 5-8 minutes.In construction application; Special-purpose varnish solidifying agent mixed by polyurethane transparent light varnish and varnish is used in the construction of water formation; The weight ratio of polyurethane transparent light varnish, varnish solidifying agent and water is 100:18:20; This construction is used in the woodenware surface with varnish, and the performance that this product of warp detection can reach is as expressing shown in 1.
Among above-mentioned each embodiment; Described polymer emulsion is the XP2651 of a Beyer Co., Ltd product, and polyaminoester emulsion is the XP2593-1 product of Beyer Co., Ltd, and ACRYLIC EMULSION is the CUR99 product of Opel enlightening company; The alcohol ether solvent is a Ucar 35 butyl ether product; The froth breaking auxiliary agent is a kind of or mixture in 810 and No. 500 products of Di Gao company, and leveling auxiliary agent is a kind of or mixture in 028 and No. 333 product of Bi Ke company, and thickening material is the WT-105A product of the modest company of moral; In addition, above-claimed cpd or mixture also can have been bought arbitrarily on Chemical market.
Among above-mentioned each embodiment; In the varnish solidifying agent; The weight percent of each component in the varnish solidifying agent consists of, hexamethylene diisocyanate HDI prepolymer 59.7-80 part, 1-Methoxy-2-propyl acetate 20-40 part, three hydroxyl Methoxy acetic acid ester 20-40 parts, dewatering agent 0.2-0.3 part.Described hexamethylene diisocyanate HDI prepolymer is No. 2655 products of Beyer Co., Ltd, and dewatering agent is the AD-38B product of great big company, and in addition, above-claimed cpd or mixture also can have been bought arbitrarily on Chemical market.
Table 1: each embodiment gained paint records performance
as follows according to the detection method of " HJT 201-2005 environmental labelling product technical requirements water-borne coatings " and " GBT 23999-2009 indoor decorating use woodwork coating "
Claims (4)
1. transparent light varnish of aqueous double-component polyurethane; It is characterized in that: the weight percent of each component consists of, polymer emulsion 64.4-80 part of hydroxyl, polyaminoester emulsion 5-18 part, ACRYLIC EMULSION 5-7 part, pure ether solvent 2-7 part, froth breaking auxiliary agent 0.4-0.9 part, leveling auxiliary agent 0.4-0.7 part, thickening material 1-2 part.
2. a method for preparing the transparent light varnish of the described aqueous double-component polyurethane of claim 1 is characterized in that: in dispersion tank, drop into polymer emulsion, polyaminoester emulsion, the ACRYLIC EMULSION of hydroxyl, start dispersion tank; 800-1200 rev/mins; Drop into partly froth breaking auxiliary agent while stirring, forward high gear to and disperseed 15-20 minutes, be uniformly dispersed; After detecting no oily nest; Pure ether solvent, leveling auxiliary agent and another part froth breaking auxiliary agent, thickening material are dropped in the dispersion tank, behind reinforced the finishing, disperse promptly to get in 5-8 minutes.
3. the application of the transparent light varnish of aqueous double-component polyurethane according to claim 1; It is characterized in that: special-purpose varnish solidifying agent mixed by polyurethane transparent light varnish and varnish is used in the construction of water formation, and the weight ratio of polyurethane transparent light varnish, varnish solidifying agent and water is 100: (15-18): (10-20).
4. the application of the transparent light varnish of aqueous double-component polyurethane according to claim 3; It is characterized in that: in the varnish solidifying agent; The weight percent of each component in the varnish solidifying agent consists of, hexamethylene diisocyanate HDI prepolymer 59.7-80 part, 1-Methoxy-2-propyl acetate 20-40 part, three hydroxyl Methoxy acetic acid ester 20-40 parts, dewatering agent 0.2-0.3 part.
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| CN2011103385479A CN102399490A (en) | 2011-11-01 | 2011-11-01 | Waterborne two-component polyurethane transparent light varnish and preparation method and application thereof |
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| CN2011103385479A CN102399490A (en) | 2011-11-01 | 2011-11-01 | Waterborne two-component polyurethane transparent light varnish and preparation method and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102898937A (en) * | 2012-10-26 | 2013-01-30 | 中山蓝海洋水性涂料有限公司 | High-hardness scratch-resistant double-component waterborne polyurethane woodwork varnish and preparation method thereof |
| WO2015180573A1 (en) * | 2014-05-29 | 2015-12-03 | 广州亮豹涂料科技有限公司 | Functional isolating wood lacquer and preparation method therefor |
| CN105505165A (en) * | 2015-12-25 | 2016-04-20 | 澳达树熊涂料(惠州)有限公司 | Scratch-resistant double-component waterborne glossy varnish and preparation method thereof |
| CN106221541A (en) * | 2016-08-25 | 2016-12-14 | 北京建筑材料科学研究总院有限公司 | A kind of aqueous dual-component woodwork coating and preparation method thereof |
| CN106952572A (en) * | 2017-05-14 | 2017-07-14 | 安徽昂然节能环保科技有限公司 | A kind of weather resistant label |
| CN107123363A (en) * | 2017-05-14 | 2017-09-01 | 安徽昂然节能环保科技有限公司 | A kind of environment-friendly type label |
| CN107163668A (en) * | 2017-05-14 | 2017-09-15 | 安徽昂然节能环保科技有限公司 | A kind of aqueous protective coating for label |
| CN109651911A (en) * | 2018-12-28 | 2019-04-19 | 波态（上海）新材料科技有限公司 | A kind of double-component aqueous varnish and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102898937A (en) * | 2012-10-26 | 2013-01-30 | 中山蓝海洋水性涂料有限公司 | High-hardness scratch-resistant double-component waterborne polyurethane woodwork varnish and preparation method thereof |
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| CN107123363A (en) * | 2017-05-14 | 2017-09-01 | 安徽昂然节能环保科技有限公司 | A kind of environment-friendly type label |
| CN107163668A (en) * | 2017-05-14 | 2017-09-15 | 安徽昂然节能环保科技有限公司 | A kind of aqueous protective coating for label |
| CN109651911A (en) * | 2018-12-28 | 2019-04-19 | 波态（上海）新材料科技有限公司 | A kind of double-component aqueous varnish and preparation method thereof |
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