CN108017987A - A kind of aqueous polyurethane coating and preparation method thereof - Google Patents
A kind of aqueous polyurethane coating and preparation method thereof Download PDFInfo
- Publication number
- CN108017987A CN108017987A CN201711189236.4A CN201711189236A CN108017987A CN 108017987 A CN108017987 A CN 108017987A CN 201711189236 A CN201711189236 A CN 201711189236A CN 108017987 A CN108017987 A CN 108017987A
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- water
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- acrylic acid
- acid dispersion
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
- C08G18/6229—Polymers of hydroxy groups containing esters of acrylic or methacrylic acid with aliphatic polyalcohols
Abstract
The invention discloses a kind of aqueous polyurethane coating, is mixed by first component and second component, wherein, first component is made of the raw material of following parts by weight：2,546 8 12 parts of water-based hydroxyl acrylic acid dispersion, 0.1 0.2 parts of substrate wetting agents, 0.01 0.15 parts of defoamer, 0.05 0.2 parts of dispersant, 0.2 0.4 parts of thickener, 0.4 0.6 parts of flatting silica, 34 parts of water, 2,542 46 parts of water-based hydroxyl acrylic acid dispersion, 0.1 0.2 parts of levelling agent, 0.1 0.5 parts of coalescents, 0.6 1 parts of water-based scratch resistance wax emulsion；Second component is made of the raw material of following parts by weight：75 85 parts of aliphatic polyurethane curing agent, 25 parts of cosolvent PMA15.The aqueous polyurethane coating of the present invention, as raw material, is prepared using high-quality water-based acrylic acid dispersion and aliphatic polyisocyante by the scattered of water paint, compatibility technology.This coating can be used for epoxy self-leveling, the Lacquer finish of polyurethane gravity flow self equality terrace, its coating is good with adhesive force, excellent in abrasion resistance, and matte effect waits well excellent performance, can meet the needs of customer.
Description
Technical field
The invention belongs to paint field, and in particular to a kind of aqueous polyurethane coating and preparation method thereof.
Background technology
Polyurethane coating has excellent weatherability, wearability, chemoresistance good, is common finishing coat in floor coatings.
But polyurethane coating is typically solvent type, VOC content is high.
The content of the invention
It is an object of the present invention to overcome above-mentioned prior art defect, there is provided a kind of aqueous polyurethane coating and its system
Preparation Method, using high-quality water-based acrylic acid dispersion and aliphatic polyisocyante as raw material, by water paint it is scattered,
It is prepared by compatibility technology.This coating can be used for epoxy self-leveling, the Lacquer finish of polyurethane gravity flow self equality terrace, its coating has attached
Put forth effort, excellent in abrasion resistance, matte effect waits well excellent performance, can meet the needs of customer.
Technical solution is used by the present invention solves above-mentioned technical problem：
A kind of aqueous polyurethane coating, is mixed by first component and second component, wherein,
First component is made of the raw material of following parts by weight：2546 8-12 parts of water-based hydroxyl acrylic acid dispersion, base material profit
0.1-0.2 parts of humectant, 0.01-0.15 parts of defoamer, 0.05-0.2 parts of dispersant, 0.2-0.4 parts of thickener, flatting silica 0.4-
0.6 part, 3-4 parts of water, 2542 4-6 parts of water-based hydroxyl acrylic acid dispersion, 0.1-0.2 parts of levelling agent, coalescents 0.1-0.5
Part, 0.6-1 parts of water-based scratch resistance wax emulsion；
Second component is made of the raw material of following parts by weight：75-85 parts of aliphatic polyurethane curing agent, cosolvent PMA15-
25 parts.
Preferably, first component is made of the raw material of following parts by weight：2,546 9.6 parts of water-based hydroxyl acrylic acid dispersion,
0.14 part of substrate wetting agents, 0.06 part of defoamer, 0.1 part of dispersant, 0.12 part of thickener, 0.48 part of flatting silica, 3.51 parts of water,
25424.6 parts of water-based hydroxyl acrylic acid dispersion, 0.3 part of levelling agent, 0.3 part of coalescents, water-based scratch resistance wax emulsion 0.8
Part；
Second component is made of the raw material of following parts by weight：80 parts of aliphatic polyurethane curing agent, PMA20 parts of cosolvent.
A kind of method for preparing the aqueous polyurethane coating, it is characterised in that by first component and the mixing of second component
Into, wherein, first component be prepared as first by water-based hydroxyl acrylic acid dispersion 2546, substrate wetting agents, defoamer, defoamer,
After dispersant, thickener, flatting silica, water mixing, disperse 20~30 minutes under 1200-1800 rotating speeds, then add water-based
Hydroxyl acrylic aqueous dispersion 2542, levelling agent, coalescents, water-based scratch resistance wax emulsion, thickener, under 400-600 rotating speeds
It is 5~15 minutes scattered.
Raw material resin 2546 and 2542 must be filtered and used, and issuable sediment in storage process is transported to remove
Matter, it is ensured that do not influence emulsion property.
The substep that feeds intake carries out, first material finishes should be fully dispersed at high speed, to ensure filling for each auxiliary agent
It is scattered.Second batch materials can disperse compared with the slow-speed of revolution, make to be uniformly mixed.
Product should cross 200 mesh sieve nets during discharging, and to filter out impurity and bubble, discharging may have more bubble initial stage, filtering
It can be defoamed in two hours afterwards, use can be packed after performance detection.
The inventory of resin and each auxiliary agent, especially wetting dispersing agent and thickener must be strictly controlled in production process, is leaked
Add, add can have considerable influence to emulsion property, and influence bin stability.
The dual-component aqueous polyurethane matte varnish of production, excellent combination property, less usage amount can reach satisfaction
Matte effect, 5% water of addition can be taken the circumstances into consideration during engineering construction and used, and twice of roller coat, prevent holiday, it is ensured that uniform and stable
Mat surface.Temperature in use is not less than 10 DEG C.The varnish changes unobvious with time viscosity, should construct and finish in validity period.
Embodiment
The present invention is further illustrated below by embodiment, and following embodiments are the specific embodiment party of the present invention
Formula, but embodiments of the present invention and from the limitation of following embodiments.
Embodiment 1
A kind of aqueous polyurethane coating, is mixed by first component and second component, wherein,
First component is made of the raw material of following parts by weight：2,546 9.6 parts of water-based hydroxyl acrylic acid dispersion, base material profit
0.14 part of humectant, 0.06 part of defoamer, 0.012 part of defoamer, 0.1 part of dispersant, 0.12 part of thickener, 0.48 part of flatting silica,
3.51 parts of water, 25424.6 parts of water-based hydroxyl acrylic acid dispersion, 0.12 part of levelling agent, 0.3 part of coalescents, water-based scratch resistance
0.8 part of wax emulsion, 0.16 part of thickener；
Second component is made of the raw material of following parts by weight：80 parts of aliphatic polyurethane curing agent, PMA20 parts of cosolvent.
A kind of method for preparing the aqueous polyurethane coating, it is characterised in that by first component and the mixing of second component
Into, wherein, first component is prepared as water-based hydroxyl acrylic acid dispersion 2546, substrate wetting agents 140, defoamer BYK first
022nd, after defoamer RM-901W, dispersant 5027, thickener RM-8W, flatting silica OK500, water mixing, divide under 1500 rotating speeds
Dissipate 25 minutes, then add water-based hydroxyl acrylic acid dispersion 2542, levelling agent BYK 380N, coalescents Texanol, water
Property scratch resistance wax emulsion WE1, thickener RM-8W, disperse 10 minutes under 500 rotating speeds.
Embodiment 2
A kind of aqueous polyurethane coating, is mixed by first component and second component, wherein,
First component is made of the raw material of following parts by weight：2,546 8 parts of water-based hydroxyl acrylic acid dispersion, base material wetting
0.1 part of agent, 0.01 part of defoamer, 0.012 part of defoamer, 0.05 part of dispersant, 0.2 part of thickener, 0.4 part of flatting silica, water 3
Part, 2,542 4 parts of water-based hydroxyl acrylic acid dispersion, 0.1 part of levelling agent, 0.1 part of coalescents, water-based scratch resistance wax emulsion 0.6
Part, 0.16 part of thickener；
Second component is made of the raw material of following parts by weight：75 parts of aliphatic polyurethane curing agent, PMA15 parts of cosolvent.
A kind of method for preparing the aqueous polyurethane coating, it is characterised in that by first component and the mixing of second component
Into, wherein, first component is prepared as water-based hydroxyl acrylic acid dispersion 2546, substrate wetting agents 140, defoamer BYK first
022nd, after defoamer RM-901W, dispersant 5027, thickener RM-8W, flatting silica OK500, water mixing, divide under 1500 rotating speeds
Dissipate 25 minutes, then add water-based hydroxyl acrylic acid dispersion 2542, levelling agent BYK 380N, coalescents Texanol, water
Property scratch resistance wax emulsion WE1, thickener RM-8W, disperse 5 minutes under 500 rotating speeds.
Embodiment 3
A kind of aqueous polyurethane coating, is mixed by first component and second component, wherein,
First component is made of the raw material of following parts by weight：2,546 12 parts of water-based hydroxyl acrylic acid dispersion, base material wetting
0.2 part of agent, 0.15 part of defoamer, 0.012 part of defoamer, 0.2 part of dispersant, 0.4 part of thickener, 0.6 part of flatting silica, 4 parts of water,
2,542 6 parts of water-based hydroxyl acrylic acid dispersion, 0.2 part of levelling agent, 0.5 part of coalescents, 1 part of water-based scratch resistance wax emulsion, increasing
Thick dose 0.16 part；
Second component is made of the raw material of following parts by weight：85 parts of aliphatic polyurethane curing agent, PMA25 parts of cosolvent.
A kind of method for preparing the aqueous polyurethane coating, it is characterised in that by first component and the mixing of second component
Into, wherein, first component is prepared as water-based hydroxyl acrylic acid dispersion 2546, substrate wetting agents 140, defoamer BYK first
022nd, after defoamer RM-901W, dispersant 5027, thickener RM-8W, flatting silica OK500, water mixing, divide under 1500 rotating speeds
Dissipate 30 minutes, then add water-based hydroxyl acrylic acid dispersion 2542, levelling agent BYK 380N, coalescents Texanol, water
Property scratch resistance wax emulsion WE1, thickener RM-8W, disperse 15 minutes under 600 rotating speeds.
The performance test of 1 products obtained therefrom of embodiment is as follows：
| Surface drying | ≤6h |
| Do solid work | ≤24h |
| Working life | ≥2h |
| Gloss (60 °) | ≤30 |
| Pliability | ≤1mm |
| Adhesive force, cross cut test | ≤ 1 grade |
| Impact resistance | 50cm passes through |
| Wearability (CS17,1000g, 1000r) | ≤0.04g |
| Water resistance, 48h | It is not blistering, do not fall off, it is allowed to slightly turn white |
| 120# gasoline, 7d | It is not blistering, do not fall off, it is allowed to slightly turn white |
| 10%NaOH, 48h | It is not blistering, do not fall off, it is allowed to slightly turn white |
| 10%H2SO4, 48h | It is not blistering, do not fall off, it is allowed to slightly turn white |
| 3%NaCl, 7d | It is not blistering, do not fall off, it is allowed to slightly turn white |
It is to be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.Reading this
Invent lecture content after, those skilled in the art the present invention can be made with any same or similar means it is various conversion or
Modification, such equivalent forms are equally fallen under the scope of the present invention.
Claims (3)
- A kind of 1. aqueous polyurethane coating, it is characterised in that：Mixed by first component and second component, wherein,The first component is made of the raw material of following parts by weight：2546 8-12 parts of water-based hydroxyl acrylic acid dispersion, base material profit 0.1-0.2 parts of humectant, 0.01-0.15 parts of defoamer, 0.05-0.2 parts of dispersant, 0.2-0.4 parts of thickener, flatting silica 0.4- 0.6 part, 3-4 parts of water, 2542 4-6 parts of water-based hydroxyl acrylic acid dispersion, 0.1-0.2 parts of levelling agent, coalescents 0.1-0.5 Part, 0.6-1 parts of water-based scratch resistance wax emulsion；The second component is made of the raw material of following parts by weight：75-85 parts of aliphatic polyurethane curing agent, cosolvent PMA15- 25 parts.
- 2. aqueous polyurethane coating according to claim 1, it is characterised in that：The first component is by following parts by weight Raw material is made：2,546 9.6 parts of water-based hydroxyl acrylic acid dispersion, 0.14 part of substrate wetting agents, 0.06 part of defoamer, dispersant 0.1 part, 0.12 part of thickener, 0.48 part of flatting silica, 3.51 parts of water, 25424.6 parts of water-based hydroxyl acrylic acid dispersion, levelling agent 0.3 part, 0.3 part of coalescents, 0.8 part of water-based scratch resistance wax emulsion；The second component is made of the raw material of following parts by weight：80 parts of aliphatic polyurethane curing agent, PMA20 parts of cosolvent.
- A kind of 3. method for preparing the aqueous polyurethane coating described in claim 1-2, it is characterised in that by first component and second group Point mix, wherein, first component be prepared as first by water-based hydroxyl acrylic acid dispersion 2546, substrate wetting agents, defoamer, After defoamer, dispersant, thickener, flatting silica, water mixing, disperse under 1200-1800 rotating speeds 20~30 minutes, then add again Enter water-based hydroxyl acrylic acid dispersion 2542, levelling agent, coalescents, water-based scratch resistance wax emulsion, thickener, in 400-600 Disperse 5~15 minutes under rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711189236.4A CN108017987A (en) | 2017-11-24 | 2017-11-24 | A kind of aqueous polyurethane coating and preparation method thereof |
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| CN201711189236.4A CN108017987A (en) | 2017-11-24 | 2017-11-24 | A kind of aqueous polyurethane coating and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206994A (en) * | 2018-08-03 | 2019-01-15 | 浩力森涂料（上海）有限公司 | Unify water paint in the bottom surface of self-healing |
| CN109401595A (en) * | 2018-12-14 | 2019-03-01 | 重庆绿涂腾科技有限公司 | A kind of wear-resisting scratch resistance terrace finishing coat and preparation method thereof |
| 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 |
| CN110698963A (en) * | 2019-10-23 | 2020-01-17 | 郑州一安水性高分子材料有限公司 | High-wear-resistance water-based acrylic acid-polyurethane two-component finish paint |
| CN113480930A (en) * | 2021-07-30 | 2021-10-08 | 上海岩皇环保科技有限公司 | UV-resistant polyol polyurethane teak-like self-leveling material and application thereof |
| CN114592397A (en) * | 2022-04-18 | 2022-06-07 | 浙江中桓建设有限公司 | Anti-skid treatment process for asphalt pavement of highway |
| CN116535960A (en) * | 2023-06-12 | 2023-08-04 | 恒昌涂料（惠阳）有限公司 | Shrink-edge-prevention water-based double-component matte clear finishing paint and preparation method thereof |
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| US20020011030A1 (en) * | 2000-06-01 | 2002-01-31 | Williams Raymond F. | Composite polymer blast media |
| CN102533077A (en) * | 2011-12-06 | 2012-07-04 | 中南大学 | Double-component water-based polyurethane high-abrasion-resistance matte varnish and preparation thereof |
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- 2017-11-24 CN CN201711189236.4A patent/CN108017987A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020011030A1 (en) * | 2000-06-01 | 2002-01-31 | Williams Raymond F. | Composite polymer blast media |
| CN102533077A (en) * | 2011-12-06 | 2012-07-04 | 中南大学 | Double-component water-based polyurethane high-abrasion-resistance matte varnish and preparation thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206994A (en) * | 2018-08-03 | 2019-01-15 | 浩力森涂料（上海）有限公司 | Unify water paint in the bottom surface of self-healing |
| CN109401595A (en) * | 2018-12-14 | 2019-03-01 | 重庆绿涂腾科技有限公司 | A kind of wear-resisting scratch resistance terrace finishing coat and preparation method thereof |
| 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 |
| CN110698963A (en) * | 2019-10-23 | 2020-01-17 | 郑州一安水性高分子材料有限公司 | High-wear-resistance water-based acrylic acid-polyurethane two-component finish paint |
| CN113480930A (en) * | 2021-07-30 | 2021-10-08 | 上海岩皇环保科技有限公司 | UV-resistant polyol polyurethane teak-like self-leveling material and application thereof |
| CN113480930B (en) * | 2021-07-30 | 2022-03-25 | 上海岩皇环保科技有限公司 | UV-resistant polyol polyurethane teak-like self-leveling material and application thereof |
| CN114592397A (en) * | 2022-04-18 | 2022-06-07 | 浙江中桓建设有限公司 | Anti-skid treatment process for asphalt pavement of highway |
| CN116535960A (en) * | 2023-06-12 | 2023-08-04 | 恒昌涂料（惠阳）有限公司 | Shrink-edge-prevention water-based double-component matte clear finishing paint and preparation method thereof |
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