CN103102792A - Water-based bicomponent polyurethane matte coating and preparation method thereof - Google Patents
Water-based bicomponent polyurethane matte coating and preparation method thereof Download PDFInfo
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- CN103102792A CN103102792A CN2013100602514A CN201310060251A CN103102792A CN 103102792 A CN103102792 A CN 103102792A CN 2013100602514 A CN2013100602514 A CN 2013100602514A CN 201310060251 A CN201310060251 A CN 201310060251A CN 103102792 A CN103102792 A CN 103102792A
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Abstract
Belonging to the field of architectural coatings, the invention discloses a water-based bicomponent polyurethane matte coating, which is composed of a component one and a component two. The component one consists of the following raw materials by mass percentage: hydroxyl acrylic resin, a dispersing agent, a leveling agent, a defoaming agent, an anti-scratch assistant, a surface assistant, and a thickening agent. The component two consists of an isocyanate curing agent. The OH of the component one and the NCO of the component two are in a ratio of 1.3-2.3. The coating is prepared by mixing the component one and the component two according to certain ratio. Containing a urethane bond, the coating has chemical resistance, high hardness, wear resistance, weatherability, low gloss and other properties. The coating has the advantages of simple production method and convenient construction operation, and can be used as a floor coating or a wall coating.
Description
Technical field
The invention belongs to the building coating preparation field, relate in particular to aqueous double-component polyurethane low luster coating of a kind of high-performance for ground and metope, environment-friendly type and preparation method thereof.
Background technology
Along with the development of technology, the enhancing of people's environmental consciousness and the promotion of national policy guiding, water-borne coatings more and more receives publicity, and wherein aqueous double-component polyurethane coating with its excellent physical and chemical performance, becomes the focus of present water-borne coatings research and development.
Coating gloss is an important factor that affects the coating surface performance, in metope and floor coating application, if gloss is too high, can cause the reflection of the light sources such as light, sunlight serious, personnel's eyesight or psychology are produced detrimentally affect, simultaneously, gloss is too high, also is unfavorable for the expression of coatings decoration effect.
Summary of the invention
The purpose of embodiment of the present invention is to make up the weak point that prior art exists, and aqueous double-component polyurethane low luster coating of a kind of simple for production, excellent performance, long service life and preparation method thereof is provided.
The purpose of embodiment of the present invention is achieved through the following technical solutions:
Embodiment of the present invention provides a kind of aqueous double-component polyurethane low luster coating, and this coating comprises component one and component two, and wherein, described component one comprises following each raw material, and the consumption sum of measuring by mass percentage each raw material is 100%:
Component two is isocyanate curing agent, and component one with the weight proportion of component two is in described coating: component one: component two is 3～6:1.
Embodiment of the present invention also provides a kind of preparation method of aqueous double-component polyurethane low luster coating, comprising:
Get component one, each raw material of two by formula of the present invention;
Preparation component one: the Hydroxylated acrylic resin in component one raw material, the water that accounts for water gross weight 40% are added in dispersion cylinder with dispersion machine, disperseed under the rotating speed of 400～600rpm 10～20 minutes; Then add dispersion agent, account for the defoamer of defoamer gross weight 50%, in high speed dispersion under the rotating speed of 1200～2000rpm after 20 minutes, be down to 500～800rpm disperseing rotating speed, add again flatting silica under whipped state, under the rotating speed of 1200～2000rpm high speed dispersion to fineness less than 30 microns, be down to 500～800rpm disperseing rotating speed, add flow agent, scratch resistance auxiliary agent, antifreezing agent, remaining defoamer and remaining water, after 30 minutes, namely obtain the component one of aqueous double-component polyurethane low luster coating in high speed dispersion under the rotating speed of 1200～2000rpm;
With component one and isocyanate curing agent as component two, in the weight proportion of component one and component two be: component one: component two is namely to obtain the aqueous double-component polyurethane low luster coating after the ratio allotment of 3～6:1.
Can be found out by the above-mentioned technical scheme that provides, embodiment of the present invention is by the solidifying agent reaction of the Hydroxylated acrylic resin in component one and component two, form the tridimensional network paint film of crosslinking curing, the paint film of this pair of component ambient cure, surface compact, hardness is good, good surface effect can be provided, coordinate simultaneously dispersion agent, defoamer, flow agent, scratch resistance auxiliary agent and surface modifier, make this coating have good physical and chemical performance, the effect of clean environment firendly and dumb light.
Embodiment
The below is clearly and completely described the technical scheme in the embodiment of the present invention, and obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that obtains under the creative work prerequisite.
The below is described in further detail the embodiment of the present invention.
Embodiment one
The embodiment of the present invention provides a kind of aqueous double-component polyurethane low luster coating, this coating has the function of high-efficiency environment friendly and dumb light, this coating comprises component one and component two, and component one comprises following each raw material, and the consumption sum of measuring by mass percentage each raw material is 100%:
Component two adopts isocyanate curing agent, and component one with the weight proportion of component two is in above-mentioned coating: component one: component two is 3～6:1.
In above-mentioned coating, the Hydroxylated acrylic resin in component one adopts polymer emulsion, and its hydroxy radical content is 1%～7%.The Hydroxylated acrylic resin that uses in component one can form ammonia ester bond after solidifying, have stable chemical property, does not decompose under acid, alkali and uviolizing, has shown its superior weather resistance, weather resistant, chemical-resistant.
In above-mentioned coating, the antifreezing agent in component one adopts one or both in ethylene glycol, propylene glycol.
In above-mentioned coating, the dispersion agent in component one adopts the modified polyurethane dispersion agent product that mainly contains the modified polyurethane composition, and dispersion agent specifically can adopt one or more in ionic dispersant, high-molecular type dispersing agent.
In above-mentioned coating, can comprise also in component one that by mass percentage consumption is 0.1～1.5% thickening material, thickening material can adopt one or more in Natvosol, alkali swelling type thickening material, polyurethane-type thickening material.
In above-mentioned coating, can comprise also in component one that by mass percentage consumption is 1.0～40% color stuffing.
In above-mentioned coating, the flow agent in component one adopts one or more in fluorine-carbon modified polymkeric substance, acrylic acid modified polymkeric substance, polysiloxane-modified compound.This flow agent is conducive to paint film good levelling effect in the process of film forming, also have the sticking power of good anti-shrinkage cavity function and increase paint film and ground etc.
In above-mentioned coating, the defoamer in component one adopts and contains silicon defoamer;
In above-mentioned coating, the scratch resistance auxiliary agent in component one adopts tetrafluoroethylene class surface modifier, can make coating surface form superpower scratch resistance function, to ensure the wear resisting property of product.
In above-mentioned coating, the surface modifier in component one adopts silicone based surface modifier; This auxiliary agent and other material have good compatibility, can form together the part of paint film with paint film, and permanent slippery and adhesion strength are provided.
In above-mentioned coating, the flatting silica in component one adopts one or both in organic flatting silica, aerosil class flatting silica.
In above-mentioned coating, the solidifying agent of component two adopts aliphatic polymeric polyisocyanate class solidifying agent.
The embodiment of the present invention also provides a kind of preparation method of aqueous double-component polyurethane low luster coating, comprising:
Get component one, each raw material of two by formula;
Preparation component one: the Hydroxylated acrylic resin in component one raw material, the water that accounts for water gross weight 40% are added in dispersion cylinder with dispersion machine, disperseed under the rotating speed of 400～600rpm 10～20 minutes; Then add dispersion agent, account for the defoamer of defoamer gross weight 50%, in high speed dispersion under the rotating speed of 1200～2000rpm after 20 minutes, be down to 500～800rpm disperseing rotating speed, add again flatting silica under whipped state, under the rotating speed of 1200～2000rpm high speed dispersion to fineness less than 30 microns, be down to 500～800rpm disperseing rotating speed, add remaining defoamer, flow agent, scratch resistance auxiliary agent, antifreezing agent and remaining water, after 30 minutes, namely obtain the component one of aqueous double-component polyurethane low luster coating in high speed dispersion under the rotating speed of 1200～2000rpm;
With component one and isocyanate curing agent as component two, in the weight proportion of component one and component two be: component one: component two is namely to obtain the aqueous double-component polyurethane low luster coating after the ratio allotment of 3～6:1.
In aforesaid method, if also comprise thickening material in component one, thickening material and dispersion agent and the part defoamer that adds first together add.
In aforesaid method, if also comprise color stuffing in component one, color stuffing and flatting silica together add.
Embodiment two
The present embodiment provides a kind of aqueous double-component polyurethane low luster coating, a kind of transparent varnish coating for building, has wear-resisting dumb light effect, this coating comprises component one and component two, wherein, component one comprises: Hydroxylated acrylic resin, water, modified polyurethane dispersion agent, the agent of fluorine-carbon modified polymkeric substance levelling, silicone based defoamer, tetrafluoroethylene class scratch resistance auxiliary agent, each raw material of silicone based surface modifier, and each raw material consumption sum is 100% by mass percentage:
Component two adopts polymeric polyisocyanate class solidifying agent, and the proportioning (weight ratio) of component one and component two is in coating: component one: component two=5:1.
Above-mentioned aqueous double-component polyurethane low luster coating preparation method is:
Get component one each raw material by above-mentioned formula;
preparation component one: Hydroxylated acrylic resin 1, Hydroxylated acrylic resin 2, the water that accounts for total amount 10% are added in dispersion cylinder with dispersion machine, disperseed 10 minutes under the rotating speed of 400rpm, then add dispersion agent, defoamer, thickening material, in high speed dispersion under the rotating speed of 1400rpm after 20 minutes, be down to 500rpm disperseing rotating speed, add again flatting silica under whipped state, under the rotating speed of 1700rpm high speed dispersion to fineness less than 30 microns, be down to 500rpm disperseing rotating speed, add flow agent, the scratch resistance auxiliary agent, antifreezing agent and remaining water, in high speed dispersion under the rotating speed of 1500rpm after 30 minutes, namely obtain the component one of aqueous double-component polyurethane low luster coating, with component one and solidifying agent as component two, by component one: namely obtain the aqueous double-component polyurethane low luster coating after the part by weight allotment of component two=5:1.
In reality, the component one and the component two that make are packed respectively, during use, then obtained spendable aqueous double-component polyurethane low luster coating after the part by weight of 5:1 is allocated according to the above ratio.
The above-mentioned anti-doodling and anti-affixing coating that makes and paint film property are tested result such as following table:
Embodiment three
The embodiment of the present invention provides a kind of aqueous double-component polyurethane low luster coating, it is a kind of whitewash for building, have weather-proof, decoration, dumb light texts, this coating comprises component one and component two, wherein, component one comprises: Hydroxylated acrylic resin, water, modified polyurethane dispersion agent, the agent of fluorine-carbon modified polymkeric substance levelling, silicone based defoamer, tetrafluoroethylene class scratch resistance auxiliary agent, titanium dioxide, each raw material of silicone based surface modifier, and the consumption sum of each raw material is 100% by mass percentage:
Component two adopts polymeric polyisocyanate class solidifying agent, and the proportioning (weight ratio) of component one and component two is in coating: component one: component two is 6:1.
The preparation method of above-mentioned aqueous double-component polyurethane low luster coating and embodiment's one is basic identical, is not repeated.
Embodiment four
The embodiment of the present invention provides a kind of aqueous double-component polyurethane low luster coating; it is a kind of building coating; have wear-resisting, dumb light, the internally coated effect of protection; it is a kind of transparent varnish colour; this coating comprises component one and component two; wherein; component one comprises: Hydroxylated acrylic resin, water, modified polyurethane dispersion agent, the agent of fluorine-carbon modified polymkeric substance levelling, silicone based defoamer, tetrafluoroethylene class scratch resistance auxiliary agent, each raw material of silicone based surface modifier, and the consumption sum of each raw material is 100% by mass percentage:
Component two adopts polymeric polyisocyanate class solidifying agent, and the proportioning (weight ratio) of component one and component two is in coating: component one: component two is 4:1.
The preparation method of above-mentioned aqueous double-component polyurethane low luster coating and embodiment's one is basic identical, is not repeated.
Dispersion agent in the aqueous double-component polyurethane low luster coating that the various embodiments described above make is a kind of surfactant, can disperse and stabilising system in various materials; Defoamer is to eliminate in production process and the bubble that generates in construction process.Make coating have the apparent effect of good stability in storage, application property and paint film; Flow agent is to help filmogen reasonable levelling surface effect to occur in the process of drying and forming-film; The scratch resistance auxiliary agent is a kind of surface modifier of tetrafluoroethylene class, can rest on coating surface after the coating film forming, and improves the adhesion strength of coating surface; Surface modifier is the silicone based surface modifier of Switzerland's vapour Bagong department; Solidifying agent main with component one in the Hydroxylated acrylic resin reaction, the tridimensional network paint film of formation crosslinking curing, the paint film of this pair of component ambient cure, surface compact, hardness is good, and good surface effect can be provided.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement are within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. an aqueous double-component polyurethane low luster coating, is characterized in that, this coating comprises component one and component two, and wherein, described component one comprises following each raw material, and the consumption sum of measuring by mass percentage each raw material is 100%:
Component two is isocyanate curing agent, and component one with the weight proportion of component two is in described coating: component one: component two is 1:3～6.
2. coating according to claim 1, is characterized in that, the Hydroxylated acrylic resin in described component one adopts polymer emulsion, and its hydroxy radical content is 1%～7%.
3. coating according to claim 1, is characterized in that, described antifreezing agent adopts one or both in ethylene glycol, propylene glycol.
4. coating according to claim 1, is characterized in that, described dispersion agent adopts one or more in ionic dispersant, high-molecular type dispersing agent;
Described defoamer adopts and contains silicon defoamer;
Described scratch resistance auxiliary agent adopts tetrafluoroethylene class surface modifier;
Described flow agent adopts one or more in fluorine-carbon modified polymkeric substance, acrylic acid modified polymkeric substance, polysiloxane-modified compound.
5. coating according to claim 1, is characterized in that,
Described surface modifier adopts silicone based surface modifier;
Described flatting silica adopts one or both in organic flatting silica, aerosil class flatting silica.
6. coating according to claim 1, is characterized in that, described component one also comprises:
Thickening material, its consumption is 0.1～1.5% by mass percentage.
7. coating according to claim 6, is characterized in that, described thickening material adopts: one or more in Natvosol, alkali swelling type thickening material, polyurethane-type thickening material.
8. coating according to claim 1, is characterized in that, described component one also comprises:
Color stuffing, its consumption is 1.0～40% by mass percentage.
9. coating according to claim 1, is characterized in that,
Described isocyanate curing agent adopts aliphatic polymeric polyisocyanate class solidifying agent.
10. the preparation method of an aqueous double-component polyurethane low luster coating, is characterized in that, comprising:
Get component one, each raw material of two by the formula of any one in the claims 1～9;
Preparation component one: the Hydroxylated acrylic resin in component one raw material, the water that accounts for water gross weight 40% are added in dispersion cylinder with dispersion machine, disperseed under the rotating speed of 400～600rpm 10～20 minutes; Then add dispersion agent, account for the defoamer of defoamer gross weight 50%, in high speed dispersion under the rotating speed of 1200～2000rpm after 20 minutes, be down to 500～800rpm disperseing rotating speed, add again flatting silica under whipped state, under the rotating speed of 1200～2000rpm high speed dispersion to fineness less than 30 microns, be down to 500～800rpm disperseing rotating speed, add remaining defoamer, flow agent, scratch resistance auxiliary agent, antifreezing agent and remaining water, after 30 minutes, namely obtain the component one of aqueous double-component polyurethane low luster coating in high speed dispersion under the rotating speed of 1200～2000rpm;
With component one and isocyanate curing agent as component two, in the weight proportion of component one and component two be: component one: component two is namely to obtain the aqueous double-component polyurethane low luster coating after the ratio allotment of 3～6:1.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104194605A (en) * | 2014-09-17 | 2014-12-10 | 上海涂料有限公司技术中心 | Aqueous protecting coating for decoration in civil airplanes |
| CN104293018A (en) * | 2014-08-04 | 2015-01-21 | 荆门市鑫福瑞交通安全设施有限公司 | Low-surface-energy paint with hydrophobic self-cleaning function |
| CN105062347A (en) * | 2015-07-16 | 2015-11-18 | 合肥市科天化工有限公司 | Synthetic method for matte waterborne polyurethane resin composite emulsion |
| CN105397894A (en) * | 2015-10-26 | 2016-03-16 | 王璐 | Production technique for sterilized wood floor |
| CN105694692A (en) * | 2014-11-27 | 2016-06-22 | 合众（佛山）化工有限公司 | A preparing method of waterborne two-component high-temperature resistant super-wear-resistant matte varnish |
| CN106047143A (en) * | 2016-08-05 | 2016-10-26 | 吴静 | Preparation method for aqueous dual-component polyurethane flat lacquer and product thereof |
| CN106280600A (en) * | 2015-06-12 | 2017-01-04 | 湖南邦弗特新材料技术有限公司 | The formula of double-component waterborne polyurethane finish paint and preparation technology |
| CN106381046A (en) * | 2016-10-26 | 2017-02-08 | 黄远明 | High-performance water-based double-component polyurethane finish paint |
| CN106590386A (en) * | 2016-12-13 | 2017-04-26 | 君子兰化工（上海）有限公司 | Waterborne double-component scratch-resistant brilliant white paint |
| CN106867381A (en) * | 2017-02-27 | 2017-06-20 | 欧振云 | A kind of aqueous polyurethane coating with bi component |
| CN109971335A (en) * | 2019-04-23 | 2019-07-05 | 成都巴德士涂料有限公司 | A kind of aqueous double-component polyurethane finishing varnish and its preparation method and application |
| CN110746870A (en) * | 2019-10-23 | 2020-02-04 | 郑州一安水性高分子材料有限公司 | High-performance water-based acrylic polyurethane two-component coating |
| CN110964426A (en) * | 2019-11-26 | 2020-04-07 | 河北晨阳工贸集团有限公司 | Ultraviolet-resistant vehicle paint and preparation method thereof |
| CN111500174A (en) * | 2020-04-03 | 2020-08-07 | 长沙松润新材料有限公司 | Water-based matte coating for automotive interior and preparation method and application thereof |
| CN112080195A (en) * | 2020-09-22 | 2020-12-15 | 卡秀万辉(无锡)高新材料有限公司 | Wool felt resistant two-component water-based paint and preparation method thereof |
| CN114213949A (en) * | 2021-12-21 | 2022-03-22 | 福建省三棵树新材料有限公司 | Waterborne epoxy modified acrylic acid two-component transparent coating for medals and preparation method thereof |
| CN114231143A (en) * | 2021-12-23 | 2022-03-25 | 上海三棵树防水技术有限公司 | Water-based two-component polyurethane anti-doodling finishing varnish and preparation method thereof |
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| CN102516858A (en) * | 2011-12-06 | 2012-06-27 | 中南大学 | Dual-component aqueous polyurethane paint with scrawling resistance and pasting resistance and preparation thereof |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104293018A (en) * | 2014-08-04 | 2015-01-21 | 荆门市鑫福瑞交通安全设施有限公司 | Low-surface-energy paint with hydrophobic self-cleaning function |
| CN104194605A (en) * | 2014-09-17 | 2014-12-10 | 上海涂料有限公司技术中心 | Aqueous protecting coating for decoration in civil airplanes |
| CN105694692A (en) * | 2014-11-27 | 2016-06-22 | 合众（佛山）化工有限公司 | A preparing method of waterborne two-component high-temperature resistant super-wear-resistant matte varnish |
| CN106280600A (en) * | 2015-06-12 | 2017-01-04 | 湖南邦弗特新材料技术有限公司 | The formula of double-component waterborne polyurethane finish paint and preparation technology |
| CN105062347A (en) * | 2015-07-16 | 2015-11-18 | 合肥市科天化工有限公司 | Synthetic method for matte waterborne polyurethane resin composite emulsion |
| CN105397894A (en) * | 2015-10-26 | 2016-03-16 | 王璐 | Production technique for sterilized wood floor |
| CN106047143A (en) * | 2016-08-05 | 2016-10-26 | 吴静 | Preparation method for aqueous dual-component polyurethane flat lacquer and product thereof |
| CN106381046A (en) * | 2016-10-26 | 2017-02-08 | 黄远明 | High-performance water-based double-component polyurethane finish paint |
| CN106590386A (en) * | 2016-12-13 | 2017-04-26 | 君子兰化工（上海）有限公司 | Waterborne double-component scratch-resistant brilliant white paint |
| CN106867381A (en) * | 2017-02-27 | 2017-06-20 | 欧振云 | A kind of aqueous polyurethane coating with bi component |
| CN109971335A (en) * | 2019-04-23 | 2019-07-05 | 成都巴德士涂料有限公司 | A kind of aqueous double-component polyurethane finishing varnish and its preparation method and application |
| CN110746870A (en) * | 2019-10-23 | 2020-02-04 | 郑州一安水性高分子材料有限公司 | High-performance water-based acrylic polyurethane two-component coating |
| CN110964426A (en) * | 2019-11-26 | 2020-04-07 | 河北晨阳工贸集团有限公司 | Ultraviolet-resistant vehicle paint and preparation method thereof |
| CN111500174A (en) * | 2020-04-03 | 2020-08-07 | 长沙松润新材料有限公司 | Water-based matte coating for automotive interior and preparation method and application thereof |
| CN112080195A (en) * | 2020-09-22 | 2020-12-15 | 卡秀万辉(无锡)高新材料有限公司 | Wool felt resistant two-component water-based paint and preparation method thereof |
| CN114213949A (en) * | 2021-12-21 | 2022-03-22 | 福建省三棵树新材料有限公司 | Waterborne epoxy modified acrylic acid two-component transparent coating for medals and preparation method thereof |
| CN114231143A (en) * | 2021-12-23 | 2022-03-25 | 上海三棵树防水技术有限公司 | Water-based two-component polyurethane anti-doodling finishing varnish and preparation method thereof |
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