CN110484076A - A kind of aqueous Integral ceiling dumb light veneer coating of flatting silica method and preparation method thereof - Google Patents
A kind of aqueous Integral ceiling dumb light veneer coating of flatting silica method and preparation method thereof 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- 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
- C09D7/42—Gloss-reducing agents
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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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- 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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses aqueous Integral ceiling dumb light veneer coatings of a kind of flatting silica method and preparation method thereof, a kind of aqueous Integral ceiling dumb light veneer coating of flatting silica method includes the hydroxyl acrylic emulsion that weight ratio is 45.5~50 parts, 4.5~6 parts of silicone acrylic emulsion, 25.5~26 parts of titanium dioxide slurry, 5.9~6.5 parts of aqueous polyurethane dispersion, 0.25~0.35 part of defoaming agent, 0.2~0.3 part of PH regulator, 4.4~4.7 parts of water-compatible amino resin, 4.8~5.1 parts of delustring slurry, 0.35~0.85 part of thickener, 0.04~0.08 part of levelling agent and 8.56~0.12 parts of water, the delustring slurry includes the water that weight ratio is 75~77 parts, 0.15~0.25 part of preservative, 0 ~0.45 part .35 wetting agent, 0.05~0.15 part of PH regulator, 1.5~2.5 parts of dispersing agent, 0.02~0.04 part of defoaming agent and 21.5~22.5 parts of flatting silica; prepared aqueous Integral ceiling veneer coating asepsis environment-protecting; with matte effect, it can guarantee production process Water-borne modification, environmental protection in the facing for Integral ceiling.
Description
[technical field]
The present invention relates to the technical field of coating, the aqueous Integral ceiling dumb light veneer coating of especially a kind of flatting silica method and
The technical field of preparation method.
[background technique]
Chinese indoor furniture industry formd the exclusive Integral ceiling industry in the world at the past 20 years, especially in Zhejiang
Area forms the industry cluster based on aluminum alloy pattern plate.The veneer coating of existing Integral ceiling is adopted using oiliness baking vanish, coating
The mode of roller coating cloth pyroreaction film forming, volume aluminium plate generally uses the aluminium sheet of 0.4mm thickness, through overpickling, drying,
The processes such as roller coating, drying, printing, shearing and punch forming are prepared.Main production process parameters have:
1) thickness of dry film: 17 μm or so；
2) drying temperature: 240 DEG C or so；
3) drying time: 50 seconds or so.
According to the information that more Chinalcos of Integral ceiling industry provide, veneer coating oiliness baking vanish should reach following master
Want technical indicator:
| Performance | Index | The method of inspection |
| Thickness of dry film | 17±1μm | GB/T 1723 |
| Appearance of film | It is flat and smooth | GB/T 9761 |
| Glossiness | D65/10° | GB/T 9754 |
| Flexibility | 0T (bending ram is not ruptured and fallen off) | GB/T 17748 |
| Hardness | ≥2H | GB/T 6739 |
| Adhesive force | ≤ 0 grade (cross-hatching) | GB/T 9286 |
| Solvent resistant | >=100 1000 grams of x (butanone MEK) | GB/T 17748 |
| Resistance to boiling water | 2 hours without significant changes | GB/T 17748 |
| Fire prevention | 1 grade |
1 veneer coating of table oiliness baking vanish technical indicator
The oiliness baking vanish that facing coating uses at present contains a large amount of organic solvent, can evaporate in drying.People
These organic solvents are concentrated through collection system and carry out baking processing, avoid organic solvent direct emission, pollute environment.But
Since organic solvent volatilization is very fast, inevitably there is the volatilization phenomenon of solvent in the links such as roller coating drying, cause
Workshop solvent odor is obvious, has intense irritation to human eye and other organs, while also polluted environment.In addition, drying
Burning process will cause waste, energy consumption and the residual air emission problem of a large amount of solvents.If by veneer coating Water-borne modification, production process
Middle volatilization is water, can not only greatly improve production environment, is added when protecting the physical and mental health of operator, while can reduce baking
The electricity consumption of heat reduces cost, saves solvent, protects environment, achievees the effect that multi-win, this Integral ceiling row exclusive to China
Industry is also the important step of environmental protection of enterprise rectification.
Can provide currently on the market is water-based acrylic resin with the immediate water paint of Integral ceiling veneer coating
Coating (HG/T4758-2014) (I type).Its coating for being used for common mechanical piece surface refers mainly to indicate: flexible, 2mm bending
Paint film is complete；Impact, 40mm, pencil hardness, HB；Water resistance, 168h not blistering (room temperature).The above index is all adornd with Integral ceiling
Coating materials index has sizable difference, cannot all reach multinomial performance requirement listed in above-mentioned table 1.Main performance deficiency
There is no enough flexibilities, solvent resistance and boiling water resistance including lotion macromolecule.And lotion macromolecule flexible is not achieved
The hardness and adhesive force needed, and the solvent resistant of flexible macromolecule and boiling water resistance generally can further decline.Also, due to
It is higher with the Integral ceiling product gloss of film for thering is light veneer coating to do, certain light pollution can be brought, so many visitors now
It is biased to the soft dumb light facing Integral ceiling product of selection surface light in family.But because of flatting silica oil absorption with higher,
Therefore more wetting agents and dispersing agent need to be added to ensure that flatting silica is completely dispersed, wetting agent that can be excessive is to paint film water suction shadow
Sound is larger, makes paint film is more difficult to accomplish that water boiling resistance and flexibility (0T) are good.
The multinomial performance of Integral ceiling veneer coating requires to show aqueous emulsion paint system on harsh and mutual lance
How the challenge of shield selects suitable wetting agent, dispersing agent and flatting silica treatment process, the cream of reasonably combined different performance
Liquid is improved, and meeting above-mentioned technical requirements, urgently people solve.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, a kind of aqueous Integral ceiling dumb light of flatting silica method is proposed
Veneer coating and preparation method thereof, prepared aqueous Integral ceiling veneer coating asepsis environment-protecting have matte effect, are being used for
It can guarantee production process Water-borne modification, environmental protection when the facing of Integral ceiling, be conducive to protect Workshop Production environment and produce work
The physical and mental health of people.
To achieve the above object, the present invention is achieved through the following technical solutions:
A kind of aqueous Integral ceiling dumb light veneer coating of flatting silica method, the hydroxyl third for being 45.5~50 parts including weight ratio
Olefin(e) acid lotion, 4.5~6 parts of silicone acrylic emulsion, 25.5~26 parts of titanium dioxide slurry, 5.9~6.5 parts of aqueous polyurethane dispersion,
0.25~0.35 part of defoaming agent, 0.2~0.3 part of PH regulator, 4.4~4.7 parts of water-compatible amino resin, 4.8~5.1 parts
Delustring slurry, 0.35~0.85 part of thickener, 0.04~0.08 part of levelling agent and 8.56~0.12 parts of water, the titanium
It is white slurry include weight ratio be 25~26 parts of water, 0.2~0.3 part of preservative, 0.02~0.04 part of defoaming agent, 0.25~
0.35 part of wetting agent, 2.5~3.5 parts of dispersing agent and 71~73 parts of titanium dioxide, the delustring slurry includes weight ratio
It is adjusted for 75~77 parts of water, 0.15~0.25 part of preservative, 0.35~0.45 part of wetting agent, 0.05~0.15 part of PH
Agent, 1.5~2.5 parts of dispersing agent, 0.02~0.04 part of defoaming agent and 21.5~22.5 parts of flatting silica.
Preferably, being 46 parts of hydroxyl acrylic emulsion, 5 parts of silicone acrylic emulsion, 26 parts of titanium white including weight ratio
Slurry, 6 parts of aqueous polyurethane dispersion, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.5 parts of water-compatible amino resin, 5
Part delustring slurry, 0.4 part of thickener, 0.05 part of levelling agent and 6.5 parts of water, the titanium dioxide slurry include that weight ratio is
25.5 parts of water, 0.25 part of preservative, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent and 72 parts
Titanium dioxide, it is 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent, 0.1 part of PH that the delustring slurry, which includes weight ratio,
Regulator, 2 parts of dispersing agent, 0.03 part of defoaming agent and 22 parts of flatting silica.
Preferably, being 48 parts of hydroxyl acrylic emulsion, 5.5 parts of silicone acrylic emulsion, 26 parts of titanium including weight ratio
White slurry, 6.2 parts of aqueous polyurethane dispersion, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.6 parts of aqueous amino tree
Rouge, 5.1 parts of delustring slurry, 0.6 part of thickener, 0.07 part of levelling agent and 3.38 parts of water, the titanium dioxide slurry include weight
Amount ratio be 25.5 parts of water, 0.25 part of preservative, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent with
And 72 parts of titanium dioxide, the delustring slurry include weight ratio be 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent,
0.1 part of PH regulator, 2 parts of dispersing agent, 0.03 part of defoaming agent and 22 parts of flatting silica.
Preferably, being 50 parts of hydroxyl acrylic emulsion, 6 parts of silicone acrylic emulsion, 26 parts of titanium white including weight ratio
Slurry, 6.5 parts of aqueous polyurethane dispersion, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.7 parts of aqueous amino tree
Rouge, 4.9 parts of delustring slurry, 0.8 part of thickener, 0.07 part of levelling agent and 0.48 part of water, the titanium dioxide slurry include weight
Amount ratio be 25.5 parts of water, 0.25 part of preservative, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent with
And 72 parts of titanium dioxide, the delustring slurry include weight ratio be 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent,
0.1 part of PH regulator, 2 parts of dispersing agent, 0.03 part of defoaming agent and 22 parts of flatting silica.
Preferably, the flatting silica is the good chemical industry flatting silica in Weifang SJ-580L three, the hydroxyl acrylic emulsion is
3094 Tao Shi hydroxyl acrylic emulsions, the silicone acrylic emulsion are the Shanghai 996AD Ahmedabad Silicon-rich acrylic emulsion, the aqueous polyurethane point
Granular media is the chemical aqueous polyurethane emulsion of 72,300,000 China, and the PH regulator is AMP-95 pottery formula PH regulator, the aqueous ammonia
Base resin is the great health chemical industry water-compatible amino resin of 303 Chongqing Jian Feng, and the thickener is ASE-60 pottery formula thickener, the levelling
Agent is 2020 pottery formula levelling agents, and the defoaming agent is BYK-021 or BYK-025 Bi Ke chemistry defoaming agent, titanium dioxide slurry and delustring slurry
It is middle to use BYK-021 Bi Ke chemistry defoaming agent, BYK-025 Bi Ke chemistry defoaming agent is used in whole mixing, the wetting agent is
Nonionic wetting agent, such as 080 west compose gloomy wetting agent, and the dispersing agent is ammonium salt dispersing agent, such as SN5027 Nuo Puke dispersing agent,
The titanium dioxide is 996 imperial boa titanium dioxides.
A kind of preparation method of the aqueous Integral ceiling dumb light veneer coating of flatting silica method, includes the following steps:
A) preparation of titanium dioxide slurry: weigh weight ratio be 25~26 parts of water, 0.2~0.3 part of preservative, 0.02~
0.04 part of defoaming agent, 0.25~0.35 part of wetting agent, 2.5~3.5 parts of dispersing agent and 71~73 parts of titanium dioxide, point
It is sanded after dissipating, Control granularity is at 10 μm or less；
B) delustring slurry preparation: weigh weight ratio be 75~77 parts of water, 0.15~0.25 part of preservative, 0.35~
0.45 part of wetting agent, 0.05~0.15 part of PH regulator, 1.5~2.5 parts of dispersing agent, 0.02~0.04 part of defoaming agent
And 21.5~22.5 parts of flatting silica, dispersion, Control granularity is at 10 μm or less；
C) hydroxyl acrylic emulsion, 4.5~6 that weight ratio is 45.5~50 parts the preparation of dumb light veneer coating: are weighed
Part silicone acrylic emulsion, 25.5~26 parts of titanium dioxide slurry, 5.9~6.5 parts of aqueous polyurethane dispersion, 0.25~0.35 part disappear
Infusion, 0.2~0.3 part of PH regulator, 4.4~4.7 parts of water-compatible amino resin, 4.8~5.1 parts delustring slurry, 0.35~
0.85 part of thickener, 0.04~0.08 part of levelling agent and 8.56~0.12 parts of water, first by hydroxyl acrylic emulsion,
Silicone acrylic emulsion, defoaming agent, titanium dioxide slurry, water-compatible amino resin, delustring slurry, aqueous polyurethane dispersion and water stir evenly, then
PH regulator is added and adjusts pH value to 7~7.4, adds thickener and levelling agent adjusts when detecting viscosity to -4 glasss of outflows of Ford
Between 140~160s；
D) it mixes colours: coloring material for mixing toning is added to get finished product.
Preferably, the step a) in disperse 10~20min of duration, revolving speed be 800~1000rpm, be sanded number 2~
4 times.
Preferably, first by whole water, preservative, PH regulator, defoaming agent and a part in the step b)
Wetting agent, dispersing agent and flatting silica mixing dispersion, disperse 15~30min of duration, 500~700rpm of revolving speed, are then added remaining
Wetting agent, dispersing agent and flatting silica and mix dispersion, first carry out middling speed dispersion, disperse 10~20min of duration, revolving speed 500~
700rpm, then high speed dispersion is carried out, disperse 20~40min of duration, 1100~1300rpm of revolving speed.
Preferably, speed of agitator is 300~500rpm in the step c).
Beneficial effects of the present invention:
1) stabilizing material of the by using aqueous polyurethane dispersion as water-compatible amino resin avoids aqueous amino tree
Particle is precipitated in storage in rouge, causes the water swelling in boiling, and surface of the paint film is made to form bubble or surface loss of gloss；
2) it by the way that in hardness height, water-fast cooked, solvent resistant is good, but adds and has in flexible insufficient hydroxyl acrylic emulsion
The silicone acrylic emulsion and aqueous polyurethane dispersion of certain flexibility, are modified hydroxyl acrylic emulsion, make the flexible, resistance to of paint film
Boiling and solvent resistance reach requirement index simultaneously, satisfy the use demand；
3) by using the flatting silica with good water dispersible, and added using two-step method, thus reduce wetting agent,
The dosage of dispersing agent and water guarantees the water boiling resistance of paint film, while dispersing by adjusting water-compatible amino resin and aqueous polyurethane
The relative usage of body improves the crosslinking degree of paint film high molecular weight reactive, and further decreasing flatting silica reduces flexible and water resistance
Adverse effect；
4) all additive asepsis environment-protectings of, and in the selection of auxiliary agent, water-fast well-done auxiliary agent is selected as far as possible, and it is right
Dosage is then reduced to the greatest extent in auxiliary agent must using and influential on water boiling resistance, to guarantee the water boiling resistance of paint film.
[specific embodiment]
Embodiment one:
Weighing weight ratio is 46 parts of hydroxyl acrylic emulsion, 5 parts of silicone acrylic emulsion, 26 parts of titanium dioxide slurry, 6 parts of water
Property dispersions of polyurethanes, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.5 parts of water-compatible amino resin, 5 parts of delustring
Slurry, 0.4 part of thickener, 0.05 part of levelling agent and 6.5 parts of water, the titanium dioxide slurry include that weight ratio is 25.5 parts
Water, 0.25 part of preservative, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent and 72 parts of titanium dioxide, institute
It is 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent, 0.1 part of PH regulator, 2 that delustring slurry, which is stated, including weight ratio
The dispersing agent, 0.03 part of defoaming agent and 22 parts of flatting silica of part.
The flatting silica is the good chemical industry flatting silica in Weifang SJ-580L three, and the hydroxyl acrylic emulsion is 3094 Tao Shi hydroxyls
Base acrylic emulsion, the silicone acrylic emulsion are the Shanghai 996AD Ahmedabad Silicon-rich acrylic emulsion, and the aqueous polyurethane dispersion is 7230
The chemical aqueous polyurethane emulsion of ten thousand China, the PH regulator are AMP-95 pottery formula PH regulator, and the water-compatible amino resin is 303
The great health chemical industry water-compatible amino resin of Chongqing Jian Feng, the thickener are ASE-60 pottery formula thickener, and the levelling agent is 2020 potteries
Formula levelling agent, the defoaming agent are BYK-021 or BYK-025 Bi Ke chemistry defoaming agent, use BYK- in titanium dioxide slurry and delustring slurry
021 Bi Ke chemistry defoaming agent, integrally uses BYK-025 Bi Ke chemistry defoaming agent in mixing, the wetting agent is nonionic profit
Humectant, such as 080 west compose gloomy wetting agent, and the dispersing agent is ammonium salt dispersing agent, such as SN5027 Nuo Puke dispersing agent, the titanium dioxide
For 996 imperial boa titanium dioxides.
The preparation of titanium dioxide slurry: by weighed water, preservative, defoaming agent, wetting agent, dispersing agent and titanium dioxide, dispersion
After be sanded, Control granularity at 10 μm hereinafter, dispersion duration 15min, revolving speed 800rpm, be sanded number 2 times.
The preparation of delustring slurry: by weighed water, preservative, wetting agent, PH regulator, dispersing agent, defoaming agent and disappear
Light powder, dispersion, Control granularity is at 10 μm or less.Method is dispersed in two steps, first by whole water, preservative, PH regulator,
Defoaming agent mix dispersion with the wetting agent, dispersing agent and flatting silica of a part, dispersion duration 20min, revolving speed 600rpm, then plus
Enter remaining wetting agent, dispersing agent and flatting silica and mix dispersion, first carry out middling speed dispersion, disperses duration 15min, revolving speed
600rpm, then high speed dispersion is carried out, disperse duration 30min, revolving speed 1200rpm.
The preparation of dumb light veneer coating: first by hydroxyl acrylic emulsion, silicone acrylic emulsion, defoaming agent, titanium dioxide slurry, aqueous ammonia
Base resin, delustring slurry, aqueous polyurethane dispersion and water stir evenly, then addition PH regulator adjusting pH value to 7.2, then plus
Enter thickener and levelling agent adjustment detection viscosity to -4 glasss of delivery time 150s of Ford, speed of agitator 400rpm.Gloss control
At 35 ° (60 °) ± 2 °.
Toning: coloring material for mixing toning is added to get finished product.
Embodiment two:
Weighing weight ratio is 48 parts of hydroxyl acrylic emulsion, 5.5 parts of silicone acrylic emulsion, 26 parts of titanium dioxide slurry, 6.2 parts
Aqueous polyurethane dispersion, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.6 parts of water-compatible amino resin, 5.1 parts
Delustring slurry, 0.6 part of thickener, 0.07 part of levelling agent and 3.38 parts of water, the titanium dioxide slurry include that weight ratio is
25.5 parts of water, 0.25 part of preservative, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent and 72 parts
Titanium dioxide, it is 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent, 0.1 part of PH that the delustring slurry, which includes weight ratio,
Regulator, 2 parts of dispersing agent, 0.03 part of defoaming agent and 22 parts of flatting silica.Other are the same as embodiment one.
Embodiment three:
Weighing weight ratio is 50 parts of hydroxyl acrylic emulsion, 6 parts of silicone acrylic emulsion, 26 parts of titanium dioxide slurry, 6.5 parts
Aqueous polyurethane dispersion, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.7 parts of water-compatible amino resin, 4.9 parts disappear
Light slurry, 0.8 part of thickener, 0.07 part of levelling agent and 0.48 part of water, the titanium dioxide slurry include that weight ratio is 25.5
The water, 0.25 part of preservative, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent and 72 parts of titanium white of part
Powder, the delustring slurry include that weight ratio is 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent, 0.1 part of PH adjusting
Agent, 2 parts of dispersing agent, 0.03 part of defoaming agent and 22 parts of flatting silica.Gloss is controlled at 36 ° (60 °) ± 2 °.Other are the same as real
Apply example one.
The test result of example IV, embodiment one~tri-:
Coating prepared by embodiment one~tri- is tested, test result is as follows shown in table 2:
| Inspection project | The method of inspection | The method of inspection | Embodiment one | Embodiment two | Embodiment three |
| Thickness of dry film | GB/T 1723 | 17±1μm | 17μm | 17μm | 17μm |
| Appearance of film | GB/T 9761 | It is flat and smooth | It is smooth | It is smooth | It is smooth |
| Adhesive force | GB/T 9286 | ≤ 0 grade (cross-hatching) | 0 grade | 0 grade | 0 grade |
| Flexibility | GB/T17748-2008 | 0T (bending ram is not ruptured and fallen off) | 0T | 0T | 0T |
| Hardness | GB/T 6739 | ≥2H | 2H | 2H | 2H |
| Solvent resistant | GB/17748-2008 | >=100 times 1000 grams of x | > 100 times | > 100 times | > 100 times |
| Resistance to boiling water | GB/17748-2008 | 2 hours unchanged | Nothing | Nothing | Nothing |
| Fire prevention | 1 grade | 1 grade | 1 grade | 1 grade |
2 one~embodiment of embodiment of table, three technical indicator, 3094 Tao Shi hydroxyl acrylic emulsion is a kind of excellent aqueous roasting
Paint lotion can prepare complete aqueous water-based stoving paint, its main feature is that hardness is high, water-fast cooked, solvent resistant (butanone) is good, but its
Flexible insufficient, 0T fracture, exclusive use cannot be met the requirements.It is the Shanghai 996AD Ahmedabad Silicon-rich acrylic emulsion hardness with higher, good
Good water boiling resistance and certain flexibility, the present invention play part toughening effect to 3094 Tao Shi hydroxyl acrylic emulsions using it.
Aqueous polyurethane dispersion, such as the chemical aqueous polyurethane emulsion of 72,300,000 China, have the function of stabilized aqueous amino resins.This
Outside, aqueous polyurethane dispersion also has the characteristics that flexible, imitates to the flexibility for improving 3094 Tao Shi hydroxyl acrylic emulsions
Fruit is good, but its hardness is low, water boiling resistance relative mistake, therefore can only add in right amount, coordinates with silicone acrylic emulsion, common to adjust flexibility.
The present invention makes flexibility, water boiling resistance and the solvent resistance of paint film while reaching by the way that above-mentioned three kinds of lotions are carried out collocation coordination
It is required that index, meets requirement.
The good chemical industry flatting silica in Weifang SJ-580L three using gel method preparation has good water dispersible, can reduce profit
The dosage of humectant and dispersing agent, reducing flatting silica influences the water boiling resistance of paint film.But the addition of delustring slurry will increase facing
The amount of wetting agent in coating, influences the water resistance of paint film.It is eliminated to will affect, the crosslinking journey of paint film high molecular weight reactive need to be improved
Degree, further increases water boiling resistance.In addition, the addition of delustring slurry also will increase solid content in veneer coating, and due to disappearing
Flatting silica in light slurry has higher oil absorption, eventually results in the flexible decline of paint film.The present invention is aqueous by properly increasing
The relative usage of amino resins, while the appropriate dosage for increasing aqueous polyurethane emulsion, thus guaranteeing that water resistance meets the requirements
While adjustment it is flexible.
During the preparation process, the present invention is using two step additive process preparation delustring slurry, makes full use of that be completely dispersed rear slurry viscous
The performance of degree decline reduces the dosage of water, guarantees that delustring slurry has relatively high viscosity, improves the use effect of wetting agent and dispersing agent
Rate.Relative to a step additive process, two step additive process can effectively reduce the dosage of wetting agent and dispersing agent, water-fast to guarantee paint film
Boiling property is helpful.Further, since flatting silica oil absorption is very big, it if being just all added when starting, will lead to too thick, in turn result in point
Dissipate difficulty.But if in front less plus some flatting silicas, viscosity is maintained at normally dispersible state, then as point
The increase for dissipating the time, disperses flatting silica gradually, until after viscosity declined, then fill into remaining wetting agent, dispersing agent and
Flatting silica makes viscosity be in controllable state always.
The present invention uses titanium dioxide for pigment, provides covering power for coating.Water boiling resistance phase is selected when preparing titanium dioxide slurry
Gloomy wetting agent is composed to better wetting agent, such as 080 west, and additive amount only has the 30% of normal needs, effectively ensures to moisten
Humectant does not influence paint film water boiling resistance.The ammonium salt dispersing agent with excellent water-fast effect is selected when preparing titanium dioxide slurry, such as
SN5027 Nuo Puke dispersing agent is no longer dissolve in water after drying, and on paint film water boiling resistance without influence, and dosage compares conventional requirement
1.5 times are increased, the deficiency of wetting agent is replaced with excessive dispersing agent part, it is ensured that the stabilization after powder lot dispersing sand milling, it will not
Aggregation occurs and returns thick phenomenon.Thickener selects ASE-60 pottery formula thickener, forms a film after drying, does not influence water resistance.
In addition, form of construction work is roller coating, and three rollers rotate in same direction cloth when using this aqueous Integral ceiling veneer coating
Material, third are flexible polyurethane roller.Wet feed thickness control in roller coating production on second roller is passed at 65 μm~70 μm
The material thickness control being delivered on aluminium strip makes in paint film at 100 μm or so (revolving speeds of the second roller be about third roll 2 times)
Bubble diameter is greater than wet-film thickness, if can guarantee when paint film has bubble so also because on the roller of front wet film it is relatively thin due to quickly break
Fall, will not influence whole paint film effect.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (9)
1. a kind of aqueous Integral ceiling dumb light veneer coating of flatting silica method, it is characterised in that: including weight ratio be 45.5~50
Hydroxyl acrylic emulsion, 4.5~6 parts of the silicone acrylic emulsion, 25.5~26 parts of titanium dioxide slurry, 5.9~6.5 parts of aqueous poly- ammonia of part
Ester dispersion, 0.25~0.35 part of defoaming agent, 0.2~0.3 part of PH regulator, 4.4~4.7 parts of water-compatible amino resin,
4.8~5.1 parts of delustring slurry, 0.35~0.85 part of thickener, 0.04~0.08 part of levelling agent and 8.56~0.12 parts
Water, the titanium dioxide slurry include weight ratio be 25~26 parts of water, 0.2~0.3 part of preservative, 0.02~0.04 part disappear
Infusion, 0.25~0.35 part of wetting agent, 2.5~3.5 parts of dispersing agent and 71~73 parts of titanium dioxide, the delustring slurry packet
Including weight ratio is 75~77 parts of water, 0.15~0.25 part of preservative, 0.35~0.45 part of wetting agent, 0.05~0.15
The PH regulator, 1.5~2.5 parts of dispersing agent, 0.02~0.04 part of defoaming agent and 21.5~22.5 parts of flatting silica of part.
2. a kind of aqueous Integral ceiling dumb light veneer coating of flatting silica method as described in claim 1, it is characterised in that: including weight
Amount ratio is 46 parts of hydroxyl acrylic emulsion, 5 parts of silicone acrylic emulsion, 26 parts of titanium dioxide slurry, the dispersion of 6 parts of aqueous polyurethane
Body, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.5 parts of water-compatible amino resin, 5 parts of delustring slurry, 0.4 part of thickening
Agent, 0.05 part of levelling agent and 6.5 parts of water, the titanium dioxide slurry include the water that weight ratio is 25.5 parts, 0.25 part anti-
Rotten agent, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent and 72 parts of titanium dioxide, the delustring slurry include
Weight ratio be 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent, 0.1 part of PH regulator, 2 parts of dispersing agent,
0.03 part of defoaming agent and 22 parts of flatting silica.
3. a kind of aqueous Integral ceiling dumb light veneer coating of flatting silica method as described in claim 1, it is characterised in that: including weight
Amount ratio is 48 parts of hydroxyl acrylic emulsion, 5.5 parts of silicone acrylic emulsion, 26 parts of titanium dioxide slurry, 6.2 parts of aqueous polyurethane point
Granular media, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.6 parts of water-compatible amino resin, 5.1 parts of delustring slurry, 0.6 part
Thickener, 0.07 part of levelling agent and 3.38 parts of water, the titanium dioxide slurry include the water that weight ratio is 25.5 parts, 0.25 part
Preservative, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent and 72 parts of titanium dioxide, delustring slurry
It is 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent, 0.1 part of PH regulator, 2 parts of dispersion including weight ratio
Agent, 0.03 part of defoaming agent and 22 parts of flatting silica.
4. a kind of aqueous Integral ceiling dumb light veneer coating of flatting silica method as described in claim 1, it is characterised in that: including weight
Amount ratio is 50 parts of hydroxyl acrylic emulsion, 6 parts of silicone acrylic emulsion, 26 parts of titanium dioxide slurry, the dispersion of 6.5 parts of aqueous polyurethane
Body, 0.3 part of defoaming agent, 0.25 part of PH regulator, 4.7 parts of water-compatible amino resin, 4.9 parts of delustring slurry, 0.8 part of increasing
Thick dose, 0.07 part of levelling agent and 0.48 part of water, the titanium dioxide slurry include the water that weight ratio is 25.5 parts, 0.25 part
Preservative, 0.03 part of defoaming agent, 0.3 part of wetting agent, 3 parts of dispersing agent and 72 parts of titanium dioxide, the delustring slurry packet
Include weight ratio be 76 parts of water, 0.2 part of preservative, 0.4 part of wetting agent, 0.1 part of PH regulator, 2 parts of dispersing agent,
0.03 part of defoaming agent and 22 parts of flatting silica.
5. the aqueous Integral ceiling dumb light veneer coating of a kind of flatting silica method as described in any one of claims 1 to 4, feature
Be: the flatting silica is the good chemical industry flatting silica in Weifang SJ-580L three, and the hydroxyl acrylic emulsion is 3094 Tao Shi hydroxyls third
Olefin(e) acid lotion, the silicone acrylic emulsion are the Shanghai 996AD Ahmedabad Silicon-rich acrylic emulsion, and the aqueous polyurethane dispersion is 72,300,000 China
Chemical aqueous polyurethane emulsion, the PH regulator are AMP-95 pottery formula PH regulator, and the water-compatible amino resin is 303 Chongqing
Feng Haokang chemical industry water-compatible amino resin is built, the thickener is ASE-60 pottery formula thickener, and the levelling agent is 2020 Tao Shiliu
Flat agent, the defoaming agent are BYK-021 or BYK-025 Bi Ke chemistry defoaming agent, are finished in titanium dioxide slurry and delustring slurry using BYK-021
Gram chemical defoaming agent uses BYK-025 Bi Ke chemistry defoaming agent in whole mixing, and the wetting agent is nonionic wetting agent,
If gloomy wetting agent is composed in 080 west, the dispersing agent is ammonium salt dispersing agent, and such as SN5027 Nuo Puke dispersing agent, the titanium dioxide is 996
Imperial boa titanium dioxide.
6. a kind of preparation method of the aqueous Integral ceiling dumb light veneer coating of flatting silica method, it is characterised in that include the following steps:
A) preparation of titanium dioxide slurry: weighing weight ratio is 25~26 parts of water, 0.2~0.3 part of preservative, 0.02~0.04 part
Defoaming agent, 0.25~0.35 part of wetting agent, 2.5~3.5 parts of dispersing agent and 71~73 parts of titanium dioxide, sand after dispersion
Mill, Control granularity is at 10 μm or less；
B) preparation of delustring slurry: weighing weight ratio is 75~77 parts of water, 0.15~0.25 part of preservative, 0.35~0.45
Part wetting agent, 0.05~0.15 part of PH regulator, 1.5~2.5 parts of dispersing agent, 0.02~0.04 part of defoaming agent and
21.5~22.5 parts of flatting silica, dispersion, Control granularity is at 10 μm or less；
C) hydroxyl acrylic emulsion, 4.5~6 parts that weight ratio is 45.5~50 parts the preparation of dumb light veneer coating: are weighed
Silicone acrylic emulsion, 25.5~26 parts of titanium dioxide slurry, 5.9~6.5 parts of aqueous polyurethane dispersion, 0.25~0.35 part of defoaming
Agent, 0.2~0.3 part of PH regulator, 4.4~4.7 parts of water-compatible amino resin, 4.8~5.1 parts delustring slurry, 0.35~
0.85 part of thickener, 0.04~0.08 part of levelling agent and 8.56~0.12 parts of water, first by hydroxyl acrylic emulsion,
Silicone acrylic emulsion, defoaming agent, titanium dioxide slurry, water-compatible amino resin, delustring slurry, aqueous polyurethane dispersion and water stir evenly, then
PH regulator is added and adjusts pH value to 7~7.4, adds thickener and levelling agent adjusts when detecting viscosity to -4 glasss of outflows of Ford
Between 140~160s；
D) it mixes colours: coloring material for mixing toning is added to get finished product.
7. a kind of preparation method of the aqueous Integral ceiling dumb light veneer coating of flatting silica method as claimed in claim 6, feature
It is: disperses 10~20min of duration in the step a), revolving speed is 800~1000rpm, is sanded number 2~4 times.
8. a kind of preparation method of the aqueous Integral ceiling dumb light veneer coating of flatting silica method as claimed in claim 6, feature
It is: first by the wetting agent, dispersing agent of whole water, preservative, PH regulator, defoaming agent and a part in the step b)
It mixes and disperses with flatting silica, disperse 15~30min of duration, then remaining wetting agent, dispersion is added in 500~700rpm of revolving speed
Agent and flatting silica simultaneously mix dispersion, first carry out middling speed dispersion, disperse 10~20min of duration, 500~700rpm of revolving speed, then carry out
High speed dispersion disperses 20~40min of duration, 1100~1300rpm of revolving speed.
9. a kind of preparation method of the aqueous Integral ceiling dumb light veneer coating of flatting silica method as claimed in claim 6, feature
Be: speed of agitator is 300~500rpm in the step c).
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