CN104403540A - High-gloss aqueous modified polyurethane finish coat and preparation method thereof - Google Patents
High-gloss aqueous modified polyurethane finish coat and preparation method thereof Download PDFInfo
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- CN104403540A CN104403540A CN201410756030.5A CN201410756030A CN104403540A CN 104403540 A CN104403540 A CN 104403540A CN 201410756030 A CN201410756030 A CN 201410756030A CN 104403540 A CN104403540 A CN 104403540A
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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
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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Abstract
The invention discloses a high-gloss aqueous modified polyurethane finish coat. The finish coat comprises the following components in percentage by weight: 40-53% of aqueous polyurethane dispersoid, 15-25% of an epoxy modified acrylic emulsion, 12-16% of medium chrome yellow, 5-10% of nanometer barium sulfate, 0.2-0.3% of an aqueous dispersing agent, 0.1-0.2% of an aqueous foam inhibitor, 0.1-0.2% of an aqueous antifoaming agent, 0.2-0.3% of an aqueous flatting agent, 0.1-0.2% of an aqueous wetting agent, 0.6-1% of a neutralizer, 0.5-1% of hydrated magnesium silicate, 0.2-0.4% of an aqueous rheologic addition agent, 0.3-0.5% of an antimildew disinfectant, 6.8-10.7% of deionized water and 1-2% of a film forming addition agent. The coat disclosed by the invention adopts traditional aqueous polyurethane for modifying epoxy acrylic acids, so that the purposes of obviously strengthening gloss and antiseptic property are realized, and the coat can be widely used for industries of various tower cranes, steel structures, bridges, machinery, machine tools and the like. The product of the coat has the advantages of high drying speed, high hardness, high gloss (wherein the gloss can reach more than 91%), excellent fullness, good weather resistance and good excellent water resistance, and the salt mist resistant property can reach more than 1000 hours.
Description
Technical field
The present invention relates to painting field, refer to watersoluble modified polyurethane finish of a kind of high gloss and preparation method thereof especially.
Background technology
Under the pressure of haze; the revision first over 25 years that the National People's Congress does environmental law; the revision of " Law on Environmental Protection " is passed through, and increases to punish dynamics to heavy polluter, and amendment clear stipulaties can penalize number per diem to punish continuously according to original place to contaminating enterprises.According to tree prestige department statistics, in use, the organic volatile discharged in air every year reaches 7,000,000 tons more than to domestic paint, startling to the pollution level of air, and the market of visible water-miscible paint to have a very considerable growth in recent years.Market is existing exists the phenomenons such as gloss is low, antiseptic property is bad for anti-corrosion of metal polyurethane enamels.
Summary of the invention
The present invention proposes watersoluble modified polyurethane finish of a kind of high gloss and preparation method thereof, and this coating have employed traditional aqueous polyurethane and carried out epoxy acrylic modification, makes it reach and obviously strengthens gloss and antiseptic property.
Technical scheme of the present invention is achieved in that the watersoluble modified polyurethane finish of a kind of high gloss, it comprises the following component according to massfraction meter: aqueous polyurethane dispersion 40-53%, epoxy-modified acrylic acid emulsion 15-25%, medium chrome yellow medium yellow 12-16%, nano barium sulfate 5-10%, aqueous dispersant 0.2-0.3%, water-based suds suppressor 0.1-0.2%, water-based defoamer 0.1-0.2%, water-based flow agent 0.2-0.3%, aqueous wetting agent 0.1-0.2%, neutralizing agent 0.6-1%, hydrated magnesium silicate 0.5-1%, water-based auxiliary rheological agents 0.2-0.4%, antimildew disinfectant 0.3-0.5%, deionized water 6.8-10.7%, film coalescence aid 1-2%.
The making method of the watersoluble modified polyurethane finish of high gloss, its manufacturing process steps comprises:
Aqueous polyurethane dispersion, neutralizing agent are added stirring 5-10 minute by step a., and test pH value, controls pH value between 8-9;
Step b. adopts deionized water to produce in cylinder by adding after aqueous dispersant, the dilution of water-based suds suppressor, stirs 5-10 minute;
Step c adds medium chrome yellow medium yellow, nano barium sulfate, hydrated magnesium silicate while stirring, dispersion 15-20 minute, adopts sand mill to be ground to fineness and reaches 20 microns;
Steps d. adopt deionized water to produce in cylinder by adding after water-based defoamer, water-based flow agent, aqueous wetting agent, antimildew disinfectant, the dilution of water-based auxiliary rheological agents, add film coalescence aid, stir 5-10 minute, test pH value, controls with neutralizing agent between 8-9 by pH value;
Step e. dry plate realizes, comprise viscosity adjustment, spraying, from dry, slaking and salt spray resistance test.
As preferably, described dry plate realizes, be specially and directly adopt deionized-distilled water to carry out the adjustment of spray viscosity, spray viscosity is adjusted to 20-25S (NK-2 cup), spraying layer 2-3, dry plate is placed in 25 DEG C of thermostat containers and was detected traditional performance from dry 48 hours, and slaking tests artificial ageing resistance performance and salt spray resistance in 7 days afterwards, and the dry plate film thickness of artificial ageing resistance performance and salt spray resistance controls at 80-100 μm.
As preferably, in described step a, stirring velocity is 400-600 rev/min.
As preferably, in described step b, stirring velocity is 400-600 rev/min.
As preferably, in described step c, stirring velocity is 400-600 rev/min; Rate of dispersion is 600-800 rev/min.
As preferably, in described steps d, stirring velocity is 600-800 rev/min.
Compared with prior art, the invention has the advantages that: the invention provides a kind of light Gao Ze, modified polyurethane finish paint of antiseptic property excellence and preparation method thereof, this coating have employed traditional aqueous polyurethane and has carried out epoxy acrylic modification, making it reach and obviously strengthen gloss and antiseptic property, is aly can be widely used in the industries such as all kinds of tower machine, steel construction, bridge, machinery, lathe.This kind of product has that dry speed is fast, hardness is high, and gloss high (gloss can reach more than 91%), fullness ratio is excellent, good weatherability, water tolerance are excellent, and salt spray resistance can reach more than 1000 hours.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The raw material that following examples use is as follows:
Aqueous polyurethane dispersion (1201 seas are along science and technology)
Epoxy-modified acrylic acid emulsion (EA604 Beijing Jin Hui profit)
Medium chrome yellow medium yellow (south of the River, 103-2A Chongqing chemical industry)
Nano barium sulfate (BS80 Beijing gold zebra)
Hydrated magnesium silicate (AD sea ease science and technology)
Dispersion agent (PX4585 BASF)
Suds suppressor (river, A363 sea chemical industry)
Defoamer (NXZ section is peaceful)
Flow agent (57 this chemistry of sea inscription)
Wetting agent (C-2817 sea ease science and technology)
Thickening anti-settling agent (W-400LP tri-opens up chemistry)
Water-based auxiliary rheological agents (this chemistry of WT-105A sea inscription)
Antimildew disinfectant (the outstanding bright material of DFX-1)
Film coalescence aid (ethylene glycol monobutyl ether LG-DOW)
Neutralizing agent (this chemistry of AMP-95 sea inscription)
Table 1: embodiment 1 ~ embodiment 5 formulation ratio
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Aqueous polyurethane dispersion | 40 | 45 | 45 | 50 | 53 |
| Waterborne epoxy modified acrylic emulsion | 25 | 22 | 25 | 18 | 15 |
| Medium chrome yellow medium yellow 103-2A | 12 | 13 | 14 | 15 | 16 |
| Nano barium sulfate BS80 | 10 | 8 | 5 | 5 | 5 |
| Hydrated magnesium silicate AD | 1 | 0.8 | 0.6 | 0.5 | 0.8 |
| Aqueous dispersant PX4585 | 0.2 | 0.2 | 0.25 | 0.3 | 0.3 |
| Aqueous wetting agent C-2817 | 0.1 | 0.1 | 0.15 | 0.15 | 0.2 |
| Water-based suds suppressor A363 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 |
| Water-based defoamer NXZ | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 |
| Water-based flow agent 57 | 0.2 | 0.25 | 0.2 | 0.25 | 0.3 |
| Water-based thickening anti-settling agent W-400LP | 0.3 | 0.3 | 0.4 | 0.5 | 0.5 |
| Water-based auxiliary rheological agents WT-105A | 0.2 | 0.4 | 0.4 | 0.3 | 0.4 |
| Antimildew disinfectant DFX-1 | 0.3 | 0.3 | 0.4 | 0.5 | 0.5 |
| Ethylene glycol monobutyl ether | 1 | 1.2 | 1.5 | 1.8 | 2 |
| Deionized water | 9.4 | 8.15 | 6.8 | 7.4 | 10.7 |
| Add up to | 100 | 100 | 100 | 100 | 100 |
Its manufacturing process steps comprises:
Aqueous polyurethane dispersion, neutralizing agent are added employing 400-600 rev/min and stir 5-10 minute by step a., and test pH value, controls pH value between 8-9;
Step b. adopts deionized water to produce adding after aqueous dispersant, the dilution of water-based suds suppressor in cylinder, adopts 400-600 rev/min to stir 5-10 minute;
Step c limit adopts 400-600 rev/min of stirring limit to add medium chrome yellow medium yellow, nano barium sulfate, hydrated magnesium silicate, adopts 600-800 rev/min to disperse 15-20 minute.Adopt sand mill to be ground to fineness and reach 20 microns;
Steps d. adopt deionized water to produce in cylinder by adding after water-based defoamer, water-based flow agent, aqueous wetting agent, antimildew disinfectant, the dilution of water-based auxiliary rheological agents, add film coalescence aid, adopt 600-800 rev/min to stir 5-10 minute, test pH value, controls pH value between 8-9 with neutralizing agent.
Dry plate realizes: directly adopt deionized-distilled water to carry out the adjustment of spray viscosity, spray viscosity is adjusted to 20-25S (NK-2 cup), spraying layer 2-3, dry plate is placed in 25 DEG C of thermostat containers and was detected traditional performance from dry 48 hours, slaking tests artificial ageing resistance performance and salt spray resistance in 7 days afterwards, and the dry plate film thickness of artificial ageing resistance performance and salt spray resistance controls at 80-100 μm.
Operative norm: dry: GB/T1728, sticking power: GB/T1720, impact: GB/T1732, toughness: GB/T1731, gloss: GB/T1743, water tolerance: GB/T1733, resistance to salt water: GB/T1763, resistance to neutral salt spray: GB/T1771, artificial ageing resistance: GB/T1865, fineness: GB/T1724, viscosity: GB/T1723.All properties contrasts with CN 102827536 A respectively.
Table 2: the dry plate of embodiment 1 ~ 5 and CN 102827536A publication performance comparison
Analyzed by upper table Comprehensive Correlation, the over-all properties of the aqueous one-component modified polyurethane finish paint in the present invention is more similar than the CN 102827536 A aqueous double-component acrylic polyurethane finish paint announced, and gloss is obviously higher than two component, and fast drying is a very excellent environment-friendly type high performance finish paint.
The invention provides a kind of light Gao Ze, the modified polyurethane finish paint of antiseptic property excellence, this coating have employed traditional aqueous polyurethane and has carried out epoxy acrylic modification, making it reach and obviously strengthen gloss and antiseptic property, is aly can be widely used in the industries such as all kinds of tower machine, steel construction, bridge, machinery, lathe.This kind of product has that dry speed is fast, hardness is high, and gloss high (gloss can reach more than 91%), fullness ratio is excellent, good weatherability, water tolerance are excellent, and salt spray resistance can reach more than 1000 hours.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the watersoluble modified polyurethane finish of high gloss, it is characterized in that: it comprises the following component according to massfraction meter: aqueous polyurethane dispersion 40-53%, epoxy-modified acrylic acid emulsion 15-25%, medium chrome yellow medium yellow 12-16%, nano barium sulfate 5-10%, aqueous dispersant 0.2-0.3%, water-based suds suppressor 0.1-0.2%, water-based defoamer 0.1-0.2%, water-based flow agent 0.2-0.3%, aqueous wetting agent 0.1-0.2%, neutralizing agent 0.6-1%, hydrated magnesium silicate 0.5-1%, water-based auxiliary rheological agents 0.2-0.4%, antimildew disinfectant 0.3-0.5%, deionized water 6.8-10.7%, film coalescence aid 1-2%.
2. a making method for the watersoluble modified polyurethane finish of high gloss according to claim 1, is characterized in that: its manufacturing process steps comprises:
Aqueous polyurethane dispersion, neutralizing agent are added stirring 5-10 minute by step a., and test pH value, controls pH value between 8-9;
Step b. adopts deionized water to produce in cylinder by adding after aqueous dispersant, the dilution of water-based suds suppressor, stirs 5-10 minute;
Step c adds medium chrome yellow medium yellow, nano barium sulfate, hydrated magnesium silicate while stirring, dispersion 15-20 minute, adopts sand mill to be ground to fineness and reaches 20 microns;
Steps d. adopt deionized water to produce in cylinder by adding after water-based defoamer, water-based flow agent, aqueous wetting agent, antimildew disinfectant, the dilution of water-based auxiliary rheological agents, add film coalescence aid, stir 5-10 minute, test pH value, controls with neutralizing agent between 8-9 by pH value;
Step e. dry plate realizes, comprise viscosity adjustment, spraying, from dry, slaking and salt spray resistance test.
3. the making method of the watersoluble modified polyurethane finish of high gloss according to claim 2, it is characterized in that: described dry plate realizes, be specially and directly adopt deionized-distilled water to carry out the adjustment of spray viscosity, spray viscosity is adjusted to 20-25S (NK-2 cup), spraying layer 2-3, dry plate is placed in 25 DEG C of thermostat containers and was detected traditional performance from dry 48 hours, slaking tests artificial ageing resistance performance and salt spray resistance in 7 days afterwards, and the dry plate film thickness of artificial ageing resistance performance and salt spray resistance controls at 80-100 μm.
4. the making method of the watersoluble modified polyurethane finish of the high gloss according to Claims 2 or 3, is characterized in that: in described step a, stirring velocity is 400-600 rev/min.
5. the making method of the watersoluble modified polyurethane finish of the high gloss according to Claims 2 or 3, is characterized in that: in described step b, stirring velocity is 400-600 rev/min.
6. the making method of the watersoluble modified polyurethane finish of the high gloss according to Claims 2 or 3, is characterized in that: in described step c, stirring velocity is 400-600 rev/min; Rate of dispersion is 600-800 rev/min.
7. the making method of the watersoluble modified polyurethane finish of the high gloss according to Claims 2 or 3, is characterized in that: in described steps d, stirring velocity is 600-800 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756030.5A CN104403540A (en) | 2014-12-10 | 2014-12-10 | High-gloss aqueous modified polyurethane finish coat and preparation method thereof |
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| CN201410756030.5A CN104403540A (en) | 2014-12-10 | 2014-12-10 | High-gloss aqueous modified polyurethane finish coat and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802477A (en) * | 2016-05-31 | 2016-07-27 | 福建盈浩工艺制品有限公司 | Environment-friendly waterborne paint and preparation method thereof |
| CN106752743A (en) * | 2016-12-09 | 2017-05-31 | 苏州陈恒织造有限公司 | A kind of high-strength corrosion-resisting coating for Weaving device and preparation method thereof |
| CN109135537A (en) * | 2018-07-30 | 2019-01-04 | 界首市鑫全龙粮食机械购销有限公司 | A kind of grain transporter rack coating |
| CN110016273A (en) * | 2019-04-28 | 2019-07-16 | 刘子瑄 | A kind of water paint and preparation method thereof in plastic metal class material |
| CN111978842A (en) * | 2020-08-31 | 2020-11-24 | 青岛格林沃德新材料科技有限公司 | Preparation method and spraying process of anticorrosive polyurethane coating |
| CN115584197A (en) * | 2022-10-20 | 2023-01-10 | 东莞市精诚体育设施有限公司 | Outdoor green road color-changing water-based paint and preparation method thereof |
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| CN102134427A (en) * | 2011-02-16 | 2011-07-27 | 株洲飞鹿涂料有限责任公司 | Water-based acrylic finish paint and preparation method thereof |
| CN102363705A (en) * | 2011-06-30 | 2012-02-29 | 成都倍大涂料有限公司 | Water-based single-component full-gloss clear finishing paint and preparation method thereof |
| CN102367358A (en) * | 2011-06-30 | 2012-03-07 | 成都倍大涂料有限公司 | Waterborne single-component full-glossy white finish and preparation method thereof |
| CN103788787A (en) * | 2013-10-21 | 2014-05-14 | 广州擎天材料科技有限公司 | Single-component water-based natural drying finishing coat for construction crane and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102134427A (en) * | 2011-02-16 | 2011-07-27 | 株洲飞鹿涂料有限责任公司 | Water-based acrylic finish paint and preparation method thereof |
| CN102363705A (en) * | 2011-06-30 | 2012-02-29 | 成都倍大涂料有限公司 | Water-based single-component full-gloss clear finishing paint and preparation method thereof |
| CN102367358A (en) * | 2011-06-30 | 2012-03-07 | 成都倍大涂料有限公司 | Waterborne single-component full-glossy white finish and preparation method thereof |
| CN103788787A (en) * | 2013-10-21 | 2014-05-14 | 广州擎天材料科技有限公司 | Single-component water-based natural drying finishing coat for construction crane and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802477A (en) * | 2016-05-31 | 2016-07-27 | 福建盈浩工艺制品有限公司 | Environment-friendly waterborne paint and preparation method thereof |
| CN105802477B (en) * | 2016-05-31 | 2018-05-04 | 福建盈浩工艺制品有限公司 | A kind of environment-friendly water-based paint and preparation method thereof |
| CN106752743A (en) * | 2016-12-09 | 2017-05-31 | 苏州陈恒织造有限公司 | A kind of high-strength corrosion-resisting coating for Weaving device and preparation method thereof |
| CN109135537A (en) * | 2018-07-30 | 2019-01-04 | 界首市鑫全龙粮食机械购销有限公司 | A kind of grain transporter rack coating |
| CN110016273A (en) * | 2019-04-28 | 2019-07-16 | 刘子瑄 | A kind of water paint and preparation method thereof in plastic metal class material |
| CN111978842A (en) * | 2020-08-31 | 2020-11-24 | 青岛格林沃德新材料科技有限公司 | Preparation method and spraying process of anticorrosive polyurethane coating |
| CN115584197A (en) * | 2022-10-20 | 2023-01-10 | 东莞市精诚体育设施有限公司 | Outdoor green road color-changing water-based paint and preparation method thereof |
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Application publication date: 20150311 |