CN101255303A - Aqueous metal member special-purpose paint and preparation thereof - Google Patents

Aqueous metal member special-purpose paint and preparation thereof Download PDF

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Publication number
CN101255303A
CN101255303A CNA2008100091857A CN200810009185A CN101255303A CN 101255303 A CN101255303 A CN 101255303A CN A2008100091857 A CNA2008100091857 A CN A2008100091857A CN 200810009185 A CN200810009185 A CN 200810009185A CN 101255303 A CN101255303 A CN 101255303A
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China
Prior art keywords
propylene glycol
metal member
deionized water
aqueous metal
butyl ether
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CNA2008100091857A
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Chinese (zh)
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刘善江
杨磊
徐小东
肖铭
刘国旭
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Individual
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Individual
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Priority to CNA2008100091857A priority Critical patent/CN101255303A/en
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Abstract

The invention discloses a kind of paint special for aquose hardware and preparation method thereof, comprising deionized water, propylene glycol, dispersant, antifoaming agent, wetting agent, imported carbon black, iron black, aquose modified acrylic resin, aquos epoxy resin, propandiol butyl ether and propylene glycol ether. The preparation method comprises: adding deionized water and propylene glycol in a stock boiler, and stirring at low speed; adding dispersant, antifoaming agent and wetting agent in turn and uniformly mixing; adding imported carbon black and iron black and dispersing at high speed to form uniform paint slurry; grinding the paint slurry and conveying them into a blending pot; after stirring at low speed, adding the aquos modified acrylic resin, aquos epoxy resin, propandiol butyl ether and propylene glycol ether in turn after stirring, adding deionized water to dilute. The paint has good stability, high painting effeciency, stable quality, uniform paint film, smooth surface, good hardness, strong adhesion, good anti-corrosive property, good hanging paint performance at corner, no uncoated position, saltfog resistant for 48 hours, suitable for spraying; environmental protection, low cost and wide application range.

Description

Aqueous metal member special-purpose paint and preparation method thereof
One, technical field
The invention belongs to a kind of metal member special-purpose paint and preparation method thereof.
Two, background technology
Countries such as the hardware main exit America and Europe of domestic production, its application mode is coated with lacquer liquid stability requirement height based on dip-coating, showering, and after the dip-coating, it is thinner to film, and is generally 5-15um, and antiseptic property is had relatively high expectations.In particular for the hardwares such as sofa extensible member on the indoor sofa, it also has strict requirement with lacquer on the feature of environmental protection, do not contain harmful materials such as phthalate, gylcol ether, halohydrocarbon, benzene,toluene,xylene, ethylbenzene, do not contain poisonous heavy metal lead, cadmium, chromium, mercury.
The application of hardware is monopolized by Shanghai Li Li factory of U.S. The Valspar Corporation with lacquer always, the metal member special-purpose paint of its production is made by single water-borne acrylic resin, it meets above-mentioned environmental requirement, but because preservative property, the solvent resistance of water-borne acrylic resin are relatively poor, in use there are problems, relatively poor as salt fog resistance, the salt fog resistance of paint film thickness 5-10um has only 8 hours, dip-coating workpiece corner angle are not hung lacquer, are unsuitable for carrying out shower coat, and price is more high.
Three, summary of the invention
The present invention solves the above-mentioned problems in the prior art exactly, provides a kind of aqueous, environmental protective, stability is high, rate of drying is fast, hardness is high, strong adhesion, good corrosion resistance, dip-coating workpiece corner angle are hung good aqueous metal member special-purpose paint of lacquer performance and preparation method thereof.
For addressing the above problem, technical solution of the present invention is: a kind of aqueous metal member special-purpose paint, it is made by following raw material, counts by weight percentage: the iron oxide black of the wetting agent of the dispersion agent of the deionized water of 8-18%, the propylene glycol of 1-5%, 0.5-1.5%, the defoamer of 0.1-0.5%, 0.5-1.5%, the import carbon black of 2-8%, 10-25%, the watersoluble modified acrylic acid resin of 25-35%, the aqueous epoxy resins of 20-30%, the dipropylene glycol butyl ether of 1-3% and the propylene glycol of 2-5%.
Above-mentioned described dispersion agent is the ammonium salt of acrylate copolymer.
Above-mentioned described defoamer is a kind of in polyoxyethylene glycol and the polysiloxane or two kinds, and when defoamer was two kinds of polyoxyethylene glycol and polysiloxane, its proportioning was 1: 0.5-2.
Above-mentioned described wetting agent is polyether-modified polydimethylsiloxane.
A kind of making method of above-mentioned described aqueous metal member special-purpose paint: it may further comprise the steps:
1,2/3 deionized water, propylene glycol are added in the pot of getting the raw materials ready, with the speed stirring at low speed of 400-600rpm according to formula ratio;
2, according to formula ratio, add auxiliary agent successively: dispersion agent, defoamer and wetting agent after mixing, add color stuffing: import carbon black and iron oxide black, more than 20 minutes, form even mill base with 1200rpm speed high speed dispersion, and there is not obvious dry mash piece;
3, the mill base that stirs is ground, till fineness≤20um;
4, will grind qualified mill base squeezes into to transfer and converts in the jar, open stirring, low speed mixing is even, the watersoluble modified acrylic acid resin and aqueous epoxy resins, dipropylene glycol butyl ether and the propylene glycol that slowly add formula ratio successively, stir more than at least 15 minutes, survey initial viscosity, according to initial viscosity, 1/3 the deionized water that adds formula ratio transfer rare to 25 ℃, be coated with 4 glasss of viscosity, 30-50 second.
The watersoluble modified acrylic acid resin is that U.S.'s ROHM AND HAAS water-repellent preservation is resin dedicated, and it has set up new standard of performance for aquosity metallic protective paint.It can be used to aim at the water-based metal priming paint of commercial and industrial protective coating market design and the composition of raw materials of finish paint, and it is comprising on the various metal substrates such as galvanized sheet that good sticking power is all arranged.Use the aqueous metallic paint of watersoluble modified acrylic acid resin making, reduced the maintenance cost of metal building, reduced the number of times of recoat; provide the metal substrate excellent protection; have excellent gloss retention, corrosion-resistant, anti-solvent; the lasting anti-marquis of color; rate of drying is fast, and hardness is good, levelling; wettability to pigment is good, coating surface color even unanimity.Watersoluble modified Resins, epoxy and their derivative have excellent sticking power usually on steel, the water tolerance of the aqueous metallic paint paint film of its making, and erosion resistance is stronger, and the while has also strengthened the sticking power with ground, has improved the hardness of paint film.
Because the present invention has adopted watersoluble modified acrylic acid resin and aqueous epoxy resins composite, has realized the mutual supplement with each other's advantages of two kinds of resins, the gloss retention of watersoluble modified acrylic acid resin excellence, corrosion-resistant, anti-solvent, the lasting anti-marquis of color, fast drying, hardness is good, and is good to the wettability of pigment; The aqueous epoxy resins water tolerance, erosion resistance is strong, has excellent sticking power on steel, the hardness height.Two kinds of composite resin liquid good stabilities do not fire, not quick-fried, nuisanceless, low tempertaure storage never degenerates.Adopt high effective antifoaming agent, it is wetting to have promoted ground, has prevented shrinkage cavity.In addition, also promote surperficial smooth and gloss, made paint film uniform distribution on metal substrate, and strengthened the corner angle extension lacquer performance of workpiece.
In a word, easy construction of the present invention, quick, the good stability of lacquer liquid, adopt the production technique of spray or dip-coating, the coating efficiency height, coating quality is stable, the paint film of dip-coating is even, surfacing is smooth, and hardness is good, strong adhesion, preservative property are good, corner angle extension lacquer property is good, no holiday phenomenon, and salt fog resistance can reach 48 hours.It does not contain harmful materials such as phthalate, gylcol ether, halohydrocarbon, benzene,toluene,xylene, ethylbenzene, heavy metal such as not leaded, cadmium, chromium, mercury.Meet the requirement of international up-to-date environmental regulation, be suitable for the use of domestic export hardware fully.The cost of material is low for it, and price is lower than similar imported product, and is applied widely, can be used for the protective dip-coating of various hardwares.
Four, embodiment
The invention will be further described below in conjunction with specific embodiment:
Embodiment 1, present embodiment are made by following raw material, count by weight percentage: 8% deionized water, 1% propylene glycol, the ammonium salt of 0.5% acrylate copolymer, 0.05% polyoxyethylene glycol and 0.05% polysiloxane, 0.5% polyether-modified polydimethylsiloxane, 4% import carbon black, 12.9% iron oxide black, 35% watersoluble modified acrylic acid resin, 30% aqueous epoxy resins, 3% dipropylene glycol butyl ether and 5% propylene glycol.
Its making method may further comprise the steps:
1,2/3 deionized water, propylene glycol are added in the pot of getting the raw materials ready, with the speed stirring at low speed of 400-600rpm according to formula ratio.
2, according to formula ratio, add auxiliary agent successively: dispersion agent, defoamer and wetting agent after mixing, add color stuffing: import carbon black and iron oxide black, more than 20 minutes, form even mill base with 1200rpm speed high speed dispersion, and there is not obvious dry mash piece.
3, the mill base that stirs is ground, till fineness≤20um.
4, will grind qualified mill base squeezes into to transfer and converts in the jar, open stirring, low speed mixing is even, the watersoluble modified acrylic acid resin and aqueous epoxy resins and the solubility promoter that slowly add formula ratio successively: dipropylene glycol butyl ether and propylene glycol, stir more than at least 15 minutes, survey initial viscosity, according to initial viscosity, transfer rare to 25 ℃, be coated with 4 glasss of viscosity and be, 30-50 second.
5, check its viscosity to meet the requirements, soak plate checking dryness, hardness, surface effect, meet the requirements, surfacing, no significant defect is packed.
Embodiment 2, present embodiment are made by following proportioning raw materials, count by weight percentage: 12.8% deionized water, 3% propylene glycol, the ammonium salt of 0.6% acrylate copolymer, 0.3% polyoxyethylene glycol, 1.5% modified dimethyl polysiloxane, 2% import carbon black, 15% iron oxide black, 30% watersoluble modified acrylic acid resin, 28% aqueous epoxy resins, 2.6% dipropylene glycol butyl ether and 4.2% propylene glycol.Its making method is with embodiment 1.
Embodiment 3, present embodiment are made by following proportioning raw materials, count by weight percentage: 18% deionized water, 5% propylene glycol, the ammonium salt of 1.5% acrylate copolymer, 0.5% polysiloxane, 1% polyether-modified polydimethylsiloxane, 6% import carbon black, 10% iron oxide black, 25% watersoluble modified acrylic acid resin, 26% aqueous epoxy resins, 3% dipropylene glycol butyl ether and 4% propylene glycol.Its making method is with embodiment 1.
Embodiment 4, present embodiment are made by following proportioning raw materials, count by weight percentage: 11% deionized water, 2.5% propylene glycol, the ammonium salt of 1% acrylate copolymer, 0.134% polyglycol and 0.266% polysiloxane, 1.1% polyether-modified polydimethylsiloxane, 8% import carbon black, 25% iron oxide black, 28% watersoluble modified acrylic acid resin, 20% aqueous epoxy resins, 1% dipropylene glycol butyl ether and 2% propylene glycol.Its making method is with embodiment 1.
Embodiment 5, present embodiment are made by following proportioning raw materials, count by weight percentage: 16% deionized water, 4% propylene glycol, the ammonium salt of 1.2% acrylate copolymer, 0.133% polyoxyethylene glycol and 0.067% polysiloxane, 0.8% polyether-modified polydimethylsiloxane, 5% import carbon black, 17% iron oxide black, 26.8% watersoluble modified acrylic acid resin, 24% aqueous epoxy resins, 2% dipropylene glycol butyl ether and 3% propylene glycol.Its making method is with embodiment 1.

Claims (10)

1, a kind of aqueous metal member special-purpose paint, it is characterized in that: it is made by following raw material, counts by weight percentage: the iron oxide black of the wetting agent of the dispersion agent of the deionized water of 8-18%, the propylene glycol of 1-5%, 0.5-1.5%, the defoamer of 0.1-0.5%, 0.5-1.5%, the import carbon black of 2-8%, 10-25%, the watersoluble modified acrylic acid resin of 25-35%, the aqueous epoxy resins of 20-30%, the dipropylene glycol butyl ether of 1-3% and the propylene glycol of 2-5%.
2, aqueous metal member special-purpose paint according to claim 1 is characterized in that: described dispersion agent is the ammonium salt of acrylate copolymer.
3, according to claim 1 or 2 described aqueous metal member special-purpose paints, it is characterized in that: described defoamer is a kind of in polyoxyethylene glycol and the polysiloxane or two kinds; When described defoamer was two kinds of polyoxyethylene glycol and polysiloxane, its proportioning was 1: 0.5-2.
4, aqueous metal member special-purpose paint according to claim 3 is characterized in that: described wetting agent is polyether-modified polydimethylsiloxane.
5, according to claim 1 or 2 described aqueous metal member special-purpose paints, it is characterized in that: described wetting agent is polyether-modified polydimethylsiloxane.
6, aqueous metal member special-purpose paint according to claim 4, it is characterized in that: it is made by following raw material, count by weight percentage: 8% deionized water, 1% propylene glycol, the ammonium salt of 0.5% acrylate copolymer, 0.05% polyoxyethylene glycol and 0.05% polysiloxane, 0.5% polyether-modified polydimethylsiloxane, 4% import carbon black, 12.9% iron oxide black, 35% watersoluble modified acrylic acid resin, 30% aqueous epoxy resins, 3% dipropylene glycol butyl ether and 5% propylene glycol.
7, aqueous metal member special-purpose paint according to claim 4, it is characterized in that: it is made by following proportioning raw materials, count by weight percentage: 12.8% deionized water, 3% propylene glycol, the ammonium salt of 0.6% acrylate copolymer, 0.3% polyoxyethylene glycol, 1.5% modified dimethyl polysiloxane, 2% import carbon black, 15% iron oxide black, 30% watersoluble modified acrylic acid resin, 28% aqueous epoxy resins, 2.6% dipropylene glycol butyl ether and 4.2% propylene glycol.
8, aqueous metal member special-purpose paint according to claim 4, it is characterized in that: it is made by following proportioning raw materials, count by weight percentage: 11% deionized water, 2.5% propylene glycol, the ammonium salt of 1% acrylate copolymer, 0.134% polyoxyethylene glycol and 0.266% polysiloxane, 1.1% polyether-modified polydimethylsiloxane, 8% import carbon black, 25% iron oxide black, 28% watersoluble modified acrylic acid resin, 20% aqueous epoxy resins, 1% dipropylene glycol butyl ether and 2% propylene glycol.
9, aqueous metal member special-purpose paint according to claim 4, it is characterized in that: it is made by following proportioning raw materials, count by weight percentage: 16% deionized water, 4% propylene glycol, the ammonium salt of 1.2% acrylate copolymer, 0.133% polyoxyethylene glycol and 0.067% polysiloxane, 0.8% polyether-modified polydimethylsiloxane, 5% import carbon black, 17% iron oxide black, 26.8% watersoluble modified acrylic acid resin, 24% aqueous epoxy resins, 2% dipropylene glycol butyl ether and 3% propylene glycol.
10, a kind of making method of aqueous metal member special-purpose paint: it is characterized in that: it may further comprise the steps: formula ratio is according to described formula ratio wherein among the claim 1-9,
(1), the deionized water with 2/3, propylene glycol add in the pot of getting the raw materials ready, with the speed stirring at low speed of 400-600rpm according to formula ratio;
(2), according to formula ratio, add auxiliary agent successively: dispersion agent, defoamer and wetting agent after mixing, add color stuffing: import carbon black and iron oxide black, more than 20 minutes, form even mill base with 1200rpm speed high speed dispersion, do not have obvious dry mash piece;
(3), the mill base that stirs is ground, till fineness≤20um;
(4), will grind qualified mill base squeezes into to transfer and converts in the jar, open stirring, low speed mixing is even, the watersoluble modified acrylic acid resin and aqueous epoxy resins, dipropylene glycol butyl ether and the propylene glycol that slowly add formula ratio successively, stir more than at least 15 minutes, survey initial viscosity, according to initial viscosity, 1/3 the deionized water that adds formula ratio transfer rare to 25 ℃, be coated with 4 glasss of viscosity, 30-50 second.
CNA2008100091857A 2008-02-04 2008-02-04 Aqueous metal member special-purpose paint and preparation thereof Pending CN101255303A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101560351B (en) * 2009-02-25 2011-09-07 河北晨阳工贸集团有限公司 Corrosion proof impregnating varnish used for water-based metal components and manufacturing method thereof
CN106085185A (en) * 2016-08-22 2016-11-09 安徽宇瑞环保建设有限公司 A kind of environmental protection equipment anticorrosion paint special
CN110437692A (en) * 2019-07-18 2019-11-12 中华制漆(深圳)有限公司 Dip-coating paint for metal surface and preparation method thereof and application method
CN112638069A (en) * 2019-09-20 2021-04-09 北京小米移动软件有限公司 Mobile terminal shell, preparation method and mobile terminal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101560351B (en) * 2009-02-25 2011-09-07 河北晨阳工贸集团有限公司 Corrosion proof impregnating varnish used for water-based metal components and manufacturing method thereof
CN106085185A (en) * 2016-08-22 2016-11-09 安徽宇瑞环保建设有限公司 A kind of environmental protection equipment anticorrosion paint special
CN110437692A (en) * 2019-07-18 2019-11-12 中华制漆(深圳)有限公司 Dip-coating paint for metal surface and preparation method thereof and application method
CN110437692B (en) * 2019-07-18 2021-06-04 中华制漆(深圳)有限公司 Dip coating for metal surfaces, and preparation method and application method thereof
CN112638069A (en) * 2019-09-20 2021-04-09 北京小米移动软件有限公司 Mobile terminal shell, preparation method and mobile terminal

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Open date: 20080903