CN106590386A - Waterborne double-component scratch-resistant brilliant white paint - Google Patents
Waterborne double-component scratch-resistant brilliant white paint Download PDFInfo
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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
- 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
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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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
- C09D7/47—Levelling agents
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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
- 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
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
50-60% of waterborne hydroxyl acrylic emulsion is added into a paint manufacturing tank, defoamer, a wetting agent, dispersant, ammonia neutralizer and a flatting agent are gradually added at the rotating speed of 800-1,000 rpm, a coalescing agent and deionized water are firstly premixed and then slowly added, titanium dioxide pulp, in-tank bactericide and scratch-resistant wax emulsion are gradually added, and finally the viscosity is adjusted to 75-85 KU with a thickening agent. Waterborne double-component scratch-resistant brilliant white paint is convenient to manufacture, capable of achieving large-scale production, low in manufacturing cost and good in storage stability and corrosion resistance, and is rapidly leveled after being sprayed; after the paint is dried, a paint film is full, hard, smooth, bright, uniform in gloss, excellent in light and color preserving performance and fine and smooth in hand feeling, scratch resistance is remarkably improved, the product constructability and water resistance are also correspondingly improved, the paint does not turn yellow for a long time, and a surface which is a mirror surface without flaws is formed. Various performance indexes are compared with those of a solvent type brilliant varnish film, the VOC content is obviously smaller than that of solvent paint, and the waterborne double-component scratch-resistant brilliant white paint is more environmentally friendly and healthier.
Description
Technical field
The present invention relates to IPC classification C09D coating compositions, the preparation and drying of specifically a kind of aqueous woodware paint
Technique, especially aqueous double-component scratch resistance Luminant white paint.
Background technology
At present, for the woodcare paint occupied a tiny space in coating industry, original solvent based coating by
Present environmental requirement is gradually not suitable with, and water paint is a dark horse.But, common single-component water-based paint is plentiful due to which
Degree, endurance, mechanical performance etc. compared with traditional solvent-borne double-component paint, also certain gap, particularly aqueouss polish lacquer, light
Damp degree, resistance to scraping also do not reach requirement.As aqueous double-component woodcare paint occurs to hand over by the functional group between firming agent and host
Connection reaction, makes paint film more fine and close, and various aspects of performance can be better than one-component, closer to solvent-based two-component paint.So, aqueouss
What the woodcare paint of light series more considered is realizing with aqueous double-component polish lacquer.But current aqueous double-component light
Paint yet suffers from some problems, and the main volatile ingredient of water paint is water, and drying is exactly a bottleneck；Along with double-component needs hydroxyl
Base is reacted with isocyano, and the natural drying fully crosslinked time is long, if adopting traditional heating mode, dried
Due to the participation for having a large amount of water in journey, water can be highlighted again with firming agent side reaction, and the CO2 of generation causes the generation of miliaria,
Affect paint film appearance.
Chinese patent application 201110455905.4 discloses a kind of Luminant white paint, presses matter by mian paint, firming agent and diluent
Amount ratio is mixed, and mian paint contains the component of following parts by weight：Alkyd resin 35-40 parts, dispersant 3-5 parts, titanium dioxide 30-
40 parts, extender pigment 10-20 parts, anti-settling agent 0.2-0.5 parts, levelling agent 0.2-0.4 parts, defoamer 0.2-0.5 parts, anti-yellowing agent
0.5-1.0 parts, mian paint solvent 20-25 parts；Firming agent contains the component of following weight fraction：Firming agent solvent 10-20 parts, dehydration
Agent 0.1-0.2 parts, HDI type firming agent 60-70 parts, TDI type firming agent 30-40 parts；Diluent contains the group of following parts by weight
Point：Esters solvent 60-70 parts, ketones solvent 30-40 parts.
Chinese patent application 201510269815.4 is related to a kind of scratch resistant car paint, including pure water, paint component, propylene
Acid esters, ethanol, dipropylene and aqueous pu dispersions, the mass fraction of each component is：Pure water 90-120 parts, paint
The dispersion of component 80-100 part, acrylate 30-50 parts, ethanol 35-60 parts, dipropylene 20-50 parts and aqueous polyurethane
Body 10-15 parts.
Chinese patent application 200810211116.4 discloses anti-scratching wood lacquer and preparation method, and it contains individually packaging
Component A, component B and three part of component C are constituted.It is component A: component B: component C=1: 0.3～0.6 by weight during use:
0.6～0.8, mix homogeneously.Its formula is component A by weight:45～65 parts of short oil-ity alcohol acid resin, hardening dumb light
10～35 parts of auxiliary agent, anti-settling agent 0.1～1,0.2～1.5 part of dispersant, 0.1～0.8 part of defoamer, 1～7 part of delustering agent, levelling
0.05～0.3 part of agent, 0.5～3 part of slip agent, 0.1～1 part of hardening damage resistant agent, 5～15 parts of butyl acetate；Component B:By weight
Amount is than being (TDI, HDI) mixed trimer: butyl acetate=6～8: 1～4, mixing composition；Component C:It is acetic acid fourth by weight
Ester: Ketohexamethylene: dimethylbenzene=1～5: 1～2: 1～5, mixing composition.
Chinese patent application 201510204332.6 discloses a kind of scratch resistant varnish of anti-fingerprint, and its component material is pressed
Row percentage by weight is mixed：Acrylic resin, 40-65；Polyester resin, 5-18；Amino resins, 10-25；Urethane cures
Agent, 5-15；Additive, 0.5-2.5.
The drying varniss that existing new technical scheme still easily occurs is slow, and cross-linking reaction time is long, and side reaction is obvious,
Miliaria is produced, gloss of film, endurance, mechanical performance is affected, therefore is not solved the above problems.
The content of the invention
It is an object of the invention to provide a kind of aqueous double-component scratch resistance Luminant white paint, significantly improves scratch resistance energy, product
Application property and water repelling property are also accordingly improved, and overcome technological deficiency, solve aforementioned technical problem.
The purpose of the present invention will be realized by following technical measures：Production stage is as follows：
The component A formula of aqueous double-component scratch resistance Luminant white paint：
Scratch resistance wax emulsion is a kind of high density polyethylene waxes emulsion of ultra-fine grain, and the wax emulsion adhesion strength is good,
And the good gloss retention of transparency is excellent.
B component is anion-modified HDI polyisocyanates.
Component A with the mass ratio of B component is：A:B:Deionized water=1:0.15～0.25:0.1～0.25.
Preparation technology：50～60% parts of water-based hydroxyl acrylic emulsion is added in painting cylinder, 800～
Defoamer, wetting agent, dispersant, ammonia nertralizer and levelling agent are gradually added under 1000rpm rotating speeds, by coalescents and deionization
Water is first premixed, and is then slowly added into, then is gradually added antibacterial and scratch resistance wax emulsion in titanium dioxide slurry, tank, finally uses thickening agent
Tune sticks to 75～85KU.
Especially, during use, concrete operations are, first by after B component and suitable quantity of water stirring and emulsifying, are added in component A, stir
After mixing uniformly after 5～10min ripenings are stable, painting is attached on workpiece.Drying process is：The sample for mixing oil is applied and is attached to workpiece
On, after 3～5min of levelling, it is put in microwave dryer, closes the door, push-tight arranges power, drying time, maximum temperature, and opening is taken out
Wind dehumidifies, and opens microwave.During drying, move back and forth on conveyer belt of the workpiece in microwave dryer, by temperature
Sensor detects actual temperature, according to the work of the temperature control microwave emitter of setting, so as to adjust internal temperature, in control
Maximum temperature of portion's temperature less than setting, protects workpiece.After drying terminates, open the door, workpiece, air setting are taken out after slightly cooling down
Dry or placement oven drying.
Especially, component A formula：
It is 75KU that component A adjusts viscosity.
Hybrid technique：A:B:Deionized water=1:0.15:0.15.By 0.15 part of B component and 0.15 part of deionized water
After mix homogeneously, it is added in 1 part of component A, stirs 3min, sample oil mix homogeneously.
Drying process：The sample for mixing oil is applied and is attached on workpiece, after levelling 3min, be put in microwave dryer, close the door,
Push-tight, setting 3 groups of microwaves of power, drying time are 8min, maximum temperature is 50 DEG C, open convulsion dehumidifying, unlatching microwave.Dry
In dry process, move back and forth on conveyer belt of the workpiece in microwave dryer.After drying terminates, open the door, take after slightly cooling down
Go out workpiece, place drying at room temperature 22h after 50 DEG C of baking oven is dried 2h (amounting to 24h in front and back), and continue room temperature and place 7 days.
Especially, defoamer be aqueouss non-silicon ketofatty acid polymer, modified polypropene acid polymer, polyoxyethylene ether or
Modified polyorganosiloxane is therein a kind of or which combines；Dispersant is that the copolymer containing pigment affinity groups or polymer blocks are common
One kind in polymers；AMP-95 of the ammonia nertralizer for DOW；Levelling agent is；One kind in polyethers or polyester-modified polysiloxanes or
Person which combines；Coalescents are DPnB (dipropylene), one kind of DPM (dipropylene glycol methyl ether) or its combination of DOW；Tank
Interior antibacterial is antibacterial in a kind of environment-friendly type tank of DOW；Thickening agent is；Polyurethane thickener.
Especially, titanium dioxide slurry mass percent 65-75%, concrete preparation method is：25～35% deionized water is added
Enter in cylinder, the middle dispersant for adding 3-6% under 800～1000rpm of rotating speed is then gradually adding 65-75% titanium dioxides, divides at a high speed
Dissipate, add antibacterial in 0.2% tank；Titanium dioxide is the titanium dioxide of the rutile-type of chloridising production.
Especially, the preparation of component A：
It is 80KU that component A adjusts viscosity.
Hybrid technique：A:B:Deionized water=1:0.2:0.2；0.2 part of B component is mixed with 0.2 part of deionized water
After uniform, it is added in 1 part of component A, stirs 3min, sample oil mix homogeneously.
Drying process：The sample for mixing oil is applied and is attached on workpiece, after levelling 3min, be put in microwave dryer, close the door,
Push-tight, setting 3 groups of microwaves of power, drying time are 8min, maximum temperature is 50 DEG C, open convulsion dehumidifying, unlatching microwave.Dry
In dry process, move back and forth on conveyer belt of the workpiece in microwave dryer.After drying terminates, open the door, take after slightly cooling down
Go out workpiece, place drying at room temperature 22h after 50 DEG C of baking oven is dried 2h (amounting to 24h in front and back), and continue room temperature and place 7 days.
Advantages of the present invention and effect：It is easy to make, can produce on a large scale, and it is cheap for manufacturing cost, storage is stable
Property and good corrosion resistance, quick levelling after spraying, after being dried, paint film is full hard, smooth, and gloss is uniform, protects light and protects color
Property is excellent, and feel exquisiteness is smooth, significantly improves scratch resistance energy, and product application property and water repelling property are also accordingly improved, persistently
Do not turn yellow, form the flawless surface of minute surface., compared with solvent type gloss varnish paint film, VOC content is bright for property indices
It is aobvious to be less than solvent-thinned paint, more environmentally-friendly health.
Specific embodiment
The principle of the invention is that production stage is as follows：
The component A formula of aqueous double-component scratch resistance Luminant white paint：
Scratch resistance wax emulsion is a kind of high density polyethylene waxes emulsion of ultra-fine grain, and the wax emulsion adhesion strength is good,
And the good gloss retention of transparency is excellent.
B component is anion-modified HDI polyisocyanates.
Component A with the mass ratio of B component is：A:B:Deionized water=1:0.15～0.25:0.1～0.25.
Preparation technology：50～60% parts of water-based hydroxyl acrylic emulsion is added in painting cylinder, 800～
Defoamer, wetting agent, dispersant, ammonia nertralizer and levelling agent are gradually added under 1000rpm rotating speeds, by coalescents and deionization
Water is first premixed, and is then slowly added into, then is gradually added antibacterial and scratch resistance wax emulsion in titanium dioxide slurry, tank, finally uses thickening agent
Tune sticks to 75～85KU.
In the present invention, during use, concrete operations are, first by after B component and suitable quantity of water stirring and emulsifying, are added in component A,
After stirring after 5～10min ripenings are stable, painting is attached on workpiece.
In the present invention, drying process is：The sample for mixing oil is applied and is attached on workpiece, after 3～5min of levelling, be put into microwave
In exsiccator, close the door, push-tight arranges power, drying time, maximum temperature, open convulsion dehumidifying, open microwave.Dry
During, move back and forth on conveyer belt of the workpiece in microwave dryer, actual temperature is detected by temperature sensor, according to setting
The work of fixed temperature control microwave emitter, so as to adjust internal temperature, controls the highest temperature of the internal temperature less than setting
Degree, protects workpiece.After drying terminates, open the door, workpiece, normal temperature drying or placement oven drying are taken out after slightly cooling down.
With reference to embodiment, the invention will be further described.
Embodiment 1：Component A formula：
It is 75KU that component A adjusts viscosity.
Hybrid technique：A:B:Deionized water=1:0.15:0.15.By 0.15 part of B component and 0.15 part of deionized water
After mix homogeneously, it is added in 1 part of component A, stirs 3min, sample oil mix homogeneously.
Drying process：The sample for mixing oil is applied and is attached on workpiece, after levelling 3min, be put in microwave dryer, close the door,
Push-tight, setting 3 groups of microwaves of power, drying time are 8min, maximum temperature is 50 DEG C, open convulsion dehumidifying, unlatching microwave.Dry
In dry process, move back and forth on conveyer belt of the workpiece in microwave dryer.After drying terminates, open the door, take after slightly cooling down
Go out workpiece, place drying at room temperature 22h after 50 DEG C of baking oven is dried 2h (amounting to 24h in front and back), and continue room temperature and place 7 days.
In aforementioned, in component A, water-based hydroxyl acrylic emulsion is DSM, Cohan wound, a certain water of Opel enlightening company
Property hydroxyl acrylic emulsion.It is aqueouss non-silicon ketofatty acid polymer that defoamer is provided for Bi Ke companies or Di Gao companies, modified
Acrylic acid polymer, polyoxyethylene ether or modified polyorganosiloxane are therein a kind of or which combines.Wetting agent is poly- for Bi Ke companies
One kind or its combination in ether modified polyorganosiloxane or polyether-modified polydimethylsiloxane.Dispersant is Bi Ke companies or enlightening
One kind in the copolymer containing pigment affinity groups or high-molecular block copolymer of the offer of Gao companies.Ammonia nertralizer is DOW
AMP-95.One kind in polyethers that levelling agent is provided for Bi Ke companies or Di Gao companies or polyester-modified polysiloxanes or its
Combination.Coalescents are DPnB (dipropylene), one kind of DPM (dipropylene glycol methyl ether) or its combination of DOW.Kill in tank
Microbial inoculum is antibacterial in a kind of environment-friendly type tank of DOW.Polyurethane thickener of the thickening agent for Ming Ling companies.B component is German section
The anion-modified HDI polyisocyanates of Si Chuan companies, the polyisocyanate functional groups are more, react relatively fast, it is easy to emulsifying,
Film forming crosslink density is big.
In aforementioned, titanium dioxide slurry mass percent 65-75%, concrete preparation method is：25～35% deionized water is added
Enter in cylinder, the middle dispersant for adding 3-6% under 800～1000rpm of rotating speed is then gradually adding 65-75% titanium dioxides, divides at a high speed
Dissipate, add antibacterial in 0.2% tank.In the too white slurry, dispersant used is consistent with dispersant used in system；The titanium
It is white starch in tank used antibacterial with it is consistent in system；In the titanium dioxide slurry, titanium dioxide used is the rutile of chloridising production
The titanium dioxide of type, the titanium dioxide glossiness are high, and covering power is notable, strong coloring force, good weatherability.
In aforementioned, the mode of above-mentioned stirring can artificial hand stir, stir 3～5min, sample oil meter is seen uniformly without granule, is operated
It is convenient.
In the present embodiment, microwave dryer is the KW-018A microwaves of Shanghai Lan Tai microwave equipments Manufacturing Co., Ltd production
Water paint dries experimental facilitiess, and the equipment microwave frequency is 2450 ± 50MHz, and power is 18KW, totally 6 groups of microwave emitters, often
Group power 3KW, meets national GB10436-89 microwave radiation safeties standard (≤5mW/cm2).Can be according to the size of workpiece and spray
The thickness of painting, the power for setting as 3～18KW, that is, 1～6 group.The maximum temperature for setting is 45～55 DEG C, crosses low moisture and does
It is dry incomplete, the too high destruction that can cause workpiece and paint film.
In the present embodiment, experimental result is as follows：Performance comparison：
The performance comparison of 1 total 24h drying time of table
Table 2 conserves the performance comparison of 7 days
In the implementation case, firming agent addition is relatively fewer, is dried the initial stage, it can be clearly seen that, wet film is heated, then
Water is also aggravated with the side reaction of firming agent, causes miliaria to produce, also gloss of film is impacted, and reduces shipment qualification rate；
Spontaneously dry, no miliaria is produced, but hardness of paint film rises slowly, adhesion strength also rises slowly, reduce shipment efficiency；
First carry out microwave drying, efficient water-removing greatly reduces the generation of side reaction, after oven drying 2h again, accelerate cross-linking reaction, because
This hardness and adhesion strength rise soon, and no miliaria is produced, so as to improve shipment efficiency and qualification rate.It is dried seven days
Afterwards, the performance of the paint film each side of three kinds of drying modes is all come up, but can be to see resistance to tea and resistance to coffee, spontaneously dries
There is the micro- Huang of change with the paint film of oven drying, be on the one hand that side reaction consumes partially cured dose, for coming for only spontaneously drying
Say, be also on the one hand that cross-linking reaction is no thorough, cause paint film crosslink density relatively lower, so that tea polyphenols, coffee
Cause, tannic acid are penetrated in paint film, cause micro- Huang.
Embodiment 2:
The preparation of component A：
It is 80KU that component A adjusts viscosity.
Hybrid technique：A:B:Deionized water=1:0.2:0.2；0.2 part of B component is mixed with 0.2 part of deionized water
After uniform, it is added in 1 part of component A, stirs 3min, sample oil mix homogeneously.
Drying process：The sample for mixing oil is applied and is attached on workpiece, after levelling 3min, be put in microwave dryer, close the door,
Push-tight, setting 3 groups of microwaves of power, drying time are 8min, maximum temperature is 50 DEG C, open convulsion dehumidifying, unlatching microwave.Dry
In dry process, move back and forth on conveyer belt of the workpiece in microwave dryer.After drying terminates, open the door, take after slightly cooling down
Go out workpiece, place drying at room temperature 22h after 50 DEG C of baking oven is dried 2h (amounting to 24h in front and back), and continue room temperature and place 7 days.
In the present embodiment, properties of product contrast is as follows:
Table 3：The performance comparison of total 24h drying time.
Table 4：The maintenance performance comparison of 7 days.
In the implementation case, found according to experiment, when hardener dose increases, be dried the initial stage, it can be clearly seen that, to wet
Film is heated, and causes more miliaria to produce, also gloss of film is impacted；Spontaneously dry, no miliaria is produced, but paint film is hard
Degree rises slowly, and adhesion strength also rises slowly；First carry out microwave drying, after oven drying 2h again, no miliaria produces, hardness
Rise fast.After being dried seven days, the performance of the paint film each side of three kinds of drying modes is all come up, but can be to see resistance to tea and resistance to
Coffee, spontaneously drying paint film completely has the micro- Huang of change, and analysis reason is consistent with embodiment 1.
In the present invention, table 5 is two cases and solvent-borne type Performance comparision：
Table 5 conserves the performance comparison of 7 days.
As can be seen from Table 5, property indices are compared with solvent type gloss varnish paint film, the double groups of aqueouss of the present invention
The performance of part gloss varnish is very close, and the aqueous double-component Luminant white paint VOC content of the present invention is significantly lower than solvent-thinned paint,
More environmentally-friendly health.
Claims (6)
1. aqueous double-component scratch resistance Luminant white paint, it is characterised in that production stage is as follows：
The component A formula of aqueous double-component scratch resistance Luminant white paint：
Scratch resistance wax emulsion is a kind of high density polyethylene waxes emulsion of ultra-fine grain；
B component is anion-modified HDI polyisocyanates；
Component A with the mass ratio of B component is：A:B:Deionized water=1:0.15～0.25:0.1～0.25；
Preparation technology：50～60% parts of water-based hydroxyl acrylic emulsion is added in painting cylinder, is turned in 800～1000rpm
Defoamer, wetting agent, dispersant, ammonia nertralizer and levelling agent are gradually added under speed, coalescents are first premixed with deionized water,
It is then slowly added into, then is gradually added antibacterial and scratch resistance wax emulsion in titanium dioxide slurry, tank, finally adjusted with thickening agent and stick to 75～
85KU。
2. aqueous double-component scratch resistance Luminant white paint as claimed in claim 1, it is characterised in that during use, concrete operations are,
First by after B component and suitable quantity of water stirring and emulsifying, it is added in component A, after stirring after 5～10min ripenings are stable, application
To on workpiece；Drying process is：The sample for mixing oil is applied and is attached on workpiece, after 3～5min of levelling, be put into microwave dryer
In, to close the door, push-tight arranges power, drying time, maximum temperature, opens convulsion dehumidifying, opens microwave；During drying,
Move back and forth on conveyer belt of the workpiece in microwave dryer, actual temperature is detected by temperature sensor, according to the temperature of setting
The work of degree control microwave emitter, so as to adjust internal temperature, controls maximum temperature of the internal temperature less than setting, protection
Workpiece；After drying terminates, open the door, workpiece, normal temperature drying or placement oven drying are taken out after slightly cooling down.
3. aqueous double-component scratch resistance Luminant white paint as claimed in claim 1, it is characterised in that component A formula：
It is 75KU that component A adjusts viscosity；
Hybrid technique：A:B:Deionized water=1:0.15:0.15.0.15 part of B component is mixed with 0.15 part of deionized water
After uniform, it is added in 1 part of component A, stirs 3min, sample oil mix homogeneously；
Drying process：The sample for mixing oil is applied and is attached on workpiece, after levelling 3min, be put in microwave dryer, close the door, push away
Tightly, arrange 3 groups of microwaves of power, drying time be 8min, maximum temperature be 50 DEG C, open convulsion dehumidifying, open microwave；It is being dried
During, move back and forth on conveyer belt of the workpiece in microwave dryer；After drying terminates, open the door, take out after slightly cooling down
Workpiece, places 50 DEG C of baking oven and is dried drying at room temperature 22h after 2h, in front and back 24h altogether, and continues room temperature and place 7 days.
4. aqueous double-component scratch resistance Luminant white paint as claimed in claim 1, it is characterised in that defoamer is the non-silicone of aqueouss
Fatty acid polymer, modified polypropene acid polymer, polyoxyethylene ether or modified polyorganosiloxane are therein a kind of or which combines；Point
Powder is the copolymer containing pigment affinity groups or the one kind in high-molecular block copolymer；AMP- of the ammonia nertralizer for DOW
95；Levelling agent is；One kind or its combination in polyethers or polyester-modified polysiloxanes；DPnB (dipropyl of the coalescents for DOW
Glycol butyl ether), one kind of DPM (dipropylene glycol methyl ether) or its combination；In tank, antibacterial is sterilization in a kind of environment-friendly type tank of DOW
Agent；Thickening agent is；Polyurethane thickener；B component is anion-modified HDI polyisocyanates.
5. aqueous double-component scratch resistance Luminant white paint as claimed in claim 1, it is characterised in that titanium dioxide slurry mass percent
65-75%, concrete preparation method is：25～35% deionized water is added in cylinder, it is middle under 800～1000rpm of rotating speed to add
The dispersant of 3-6%, is then gradually adding 65-75% titanium dioxides, disperses at a high speed, add antibacterial in 0.2% tank；Titanium white
Powder is the titanium dioxide of the rutile-type of chloridising production.
6. aqueous double-component scratch resistance Luminant white paint as claimed in claim 1, it is characterised in that the preparation of component A：
It is 80KU that component A adjusts viscosity；
Hybrid technique：A:B:Deionized water=1:0.2:0.2；0.2 part of B component is mixed homogeneously with 0.2 part of deionized water
Afterwards, it is added in 1 part of component A, stirs 3min, sample oil mix homogeneously；
Drying process：The sample for mixing oil is applied and is attached on workpiece, after levelling 3min, be put in microwave dryer, close the door, push away
Tightly, arrange 3 groups of microwaves of power, drying time be 8min, maximum temperature be 50 DEG C, open convulsion dehumidifying, open microwave；It is being dried
During, move back and forth on conveyer belt of the workpiece in microwave dryer；After drying terminates, open the door, take out after slightly cooling down
Workpiece, places 50 DEG C of baking oven and is dried drying at room temperature 22h after 2h, in front and back 24h altogether, and continues room temperature and place 7 days.
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| CN201611148567.9A CN106590386A (en) | 2016-12-13 | 2016-12-13 | Waterborne double-component scratch-resistant brilliant white paint |
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| CN201611148567.9A CN106590386A (en) | 2016-12-13 | 2016-12-13 | Waterborne double-component scratch-resistant brilliant white paint |
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| CN106967322A (en) * | 2017-05-18 | 2017-07-21 | 聂超 | A kind of nanometer water powder environment-friendly materials and preparation method thereof |
| CN107987631A (en) * | 2017-11-16 | 2018-05-04 | 君子兰化工（上海）有限公司 | Anti- sagging high transparency aqueous double-component coating filler and preparation method thereof |
| CN107987247A (en) * | 2017-11-06 | 2018-05-04 | 鳄鱼制漆(上海)有限公司 | A kind of dual-component polyurethane Drawing board for children paint |
| CN109929423A (en) * | 2019-03-06 | 2019-06-25 | 上海君子兰新材料股份有限公司 | Aqueous double-component woodware white paint for kitchen use |
| CN109929360A (en) * | 2019-03-06 | 2019-06-25 | 上海君子兰新材料股份有限公司 | A kind of aqueous UV high rigidity white finish paint |
| CN109971290A (en) * | 2019-04-04 | 2019-07-05 | 绍兴臣工新材料科技有限公司 | A kind of high multi-functional water-based coating and preparation method thereof firmly of anti-formaldehyde antibacterial resistant |
| CN110791193A (en) * | 2019-11-18 | 2020-02-14 | 上海君子兰新材料股份有限公司 | Water-based bi-component bright white paint with excellent comprehensive performance and preparation method thereof |
| CN115960526A (en) * | 2022-11-03 | 2023-04-14 | 上海君子兰新材料股份有限公司 | Preparation method of water-based skin-feel solid-color finish paint |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967322A (en) * | 2017-05-18 | 2017-07-21 | 聂超 | A kind of nanometer water powder environment-friendly materials and preparation method thereof |
| CN107987247A (en) * | 2017-11-06 | 2018-05-04 | 鳄鱼制漆(上海)有限公司 | A kind of dual-component polyurethane Drawing board for children paint |
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| CN109929360A (en) * | 2019-03-06 | 2019-06-25 | 上海君子兰新材料股份有限公司 | A kind of aqueous UV high rigidity white finish paint |
| CN109971290A (en) * | 2019-04-04 | 2019-07-05 | 绍兴臣工新材料科技有限公司 | A kind of high multi-functional water-based coating and preparation method thereof firmly of anti-formaldehyde antibacterial resistant |
| CN110791193A (en) * | 2019-11-18 | 2020-02-14 | 上海君子兰新材料股份有限公司 | Water-based bi-component bright white paint with excellent comprehensive performance and preparation method thereof |
| CN115960526A (en) * | 2022-11-03 | 2023-04-14 | 上海君子兰新材料股份有限公司 | Preparation method of water-based skin-feel solid-color finish paint |
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Address after: 201700 Huilian Road 1689, Qingpu Industrial Park, Shanghai Applicant after: Shanghai Junzilan New Materials Co., Ltd. Address before: 201700 Huilian Road 1689, Qingpu Industrial Park, Shanghai Applicant before: Clivia chemical (Shanghai) Co. Ltd. |
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