CN102585579A - Metal powder oriented resin composition - Google Patents

Metal powder oriented resin composition Download PDF

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Publication number
CN102585579A
CN102585579A CN201210028720XA CN201210028720A CN102585579A CN 102585579 A CN102585579 A CN 102585579A CN 201210028720X A CN201210028720X A CN 201210028720XA CN 201210028720 A CN201210028720 A CN 201210028720A CN 102585579 A CN102585579 A CN 102585579A
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methyl
monomer
weight
metal powder
acrylate
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CN102585579B (en
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萧伯卓
萧裕霖
吴兼昇
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Changxing Material Industry Limited-Liability Co
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Eternal Chemical Co Ltd
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Abstract

The present invention provides a metal powder oriented resin composition comprising a polymer and a solvent, the polymer comprising the following monomers as polymerization units: methyl methacrylate monomer; (b) high glass transition temperature monomers; and (c) a low glass transition temperature monomer, wherein the polymer has a weight average molecular weight of at least about 50,000. The metal powder oriented resin composition has a remarkable effect on oriented arrangement of metal powder, can be used in metal coatings, has good water resistance and alcohol resistance, is good in compatibility with other resins, and can embody higher brightness and a metal mirror effect.

Description

Metal powder bearing tree oil/fat composition
Technical field
The present invention relates to a kind of metal powder bearing tree oil/fat composition, refer to a kind of metal powder bearing tree oil/fat composition that can be used in the metal coating composition especially.
Background technology
The medal polish of automobile then with the metallic paint coating, then is coated with Clear paint in the above with wet (wet-on-wet) mode of wet pressing usually via pre-treatment steel discs such as zn phosphates, toasts this two coating then together and forms.
Known metallic paint; Metallic paint or also claim silver paint for example is meant the coating behind the adulterated al powder, with so that car body after the application or 3C electronic product surface have lightness; And under different angles; Can make car body or 3C electronic product color outward appearance seem that level is abundanter because of the reflection of light, color and luster be fuller.Yet, common metal lacquer or the employed aluminium powder of silver paint, structure is a sheet, in lacquer, is irregular alignment, so the reflection paths of light in metallic paint is different, causes light scatter, so visual effect is not good.Generally can add the metal powder directing agent for obtaining preferable reflecting effect, promote that aluminium powder floats to coatingsurface, and make silver powder regularly arranged, improve surface smoothness, thereby increase surface brightness and glossiness.Industry is many to add soluble cotton, chlorine vinegar or the cellulose acetate butyrate orientation with aluminium powder in the promotion metallic paint in metallic paint coating at present.But soluble cotton is weather-proof not good, is prone to make the metallic coating yellow that is produced; Chlorine vinegar is chloride to have environmental issue; And cellulose acetate butyrate makes problems such as dope viscosity rises, the interlayer adhesion is not good, solvent resistance is not good and cost an arm and a leg.
Summary of the invention
In view of this; The present invention provides a kind of metal powder bearing tree oil/fat composition; There is excellent metal powder to align effect; Its solvent resistance and weathering resistance are good and have the adhesion of good interlayer, so can solve cellulose acetate butyrate solvent resistance and the interlayer problem such as not good of adhering, do not have nitrocotton again and have the not good and halogen-containing problem of vinyl chloride-vinyl acetate resin of weathering resistance.
Main purpose of the present invention is to provide a kind of metal powder bearing tree oil/fat composition, and it comprises polymkeric substance and solvent, and this polymkeric substance comprises following monomer as polymerized unit: (a) MMA MONOMER; (b) monomer of high glass-transition temperature; Reach (c) monomer of lower glass transition temperatures, wherein the weight-average molecular weight of this polymkeric substance is at least about 50,000.
Another purpose of the present invention is to provide a kind of metal coating composition, and it comprises metal powder; Tackiness agent; Thinner and as above-mentioned metal powder bearing tree oil/fat composition.
The invention has the beneficial effects as follows: metal powder bearing tree oil/fat composition of the present invention can effectively promote the metal powder in the metallic paint to arrange; Use the metallic paint of metal powder bearing tree oil/fat composition of the present invention; It is filmed and has excellent glossiness; And hardness of film is high, in addition, has good degree of sticking together, water tolerance, alcohol resistance and interlayer again and sticks together.
Embodiment
Metal powder bearing tree oil/fat composition of the present invention comprises polymkeric substance and solvent, and this polymkeric substance comprises following monomer as polymerized unit: (a) TEB 3K (methyl methacry latea, MMA) monomer; (b) monomer of high glass-transition temperature (Tg); Reach (c) monomer of lower glass transition temperatures.Generally speaking, the molecular weight of polymkeric substance is big, during solvent evaporates in metallic paint, has the effect of impelling metal powder to arrange in the same direction, and wherein the weight-average molecular weight of this polymkeric substance is at least about 50,000.If this polymericular weight is less than 50,000, then rate of drying is slow, and the film convergent force is little, and directional effect is not good; If its molecular weight is greater than 150,000, then leveling characteristics is not good, is difficult for construction.Therefore, the polymericular weight of metal powder bearing tree oil/fat composition of the present invention is preferably about 50,000 to about 150,000, is more preferred from about 70,000 to about 120,000.
MMA MONOMER used in the present invention; Mainly act as and promote that solvent removes by in filming; The surface drying ability is strong, and makes the easy contraction of filming can take into account levelling again to reach good surface appearance and silver powder directional effect, behind curing of coating, can increase the hardness and the solvent resistance of coating.According to the present invention, the consumption of MMA MONOMER is in total monomer weight, for about 30 weight % to about 80 weight %, be preferably about 40 weight % to about 70 weight %.
Can be used for " monomer of high glass-transition temperature (Tg) " of the present invention; Generally speaking be meant and have second-order transition temperature greater than about 70 ℃ monomer; The monomer that is applicable to high glass-transition temperature of the present invention can be second-order transition temperature greater than about 70 ℃ (methyl) acrylate monomer, styrene monomer or its mixture, and above-mentioned (methyl) acrylate monomer is such as but not limited to (methyl) IBOA monomer or (methyl) cyclohexyl acrylate monomer.According to a preferred implementation of the present invention, the monomer of high glass-transition temperature (Tg) can be selected from, but is not limited to: (methyl) IBOA monomer, (methyl) cyclohexyl acrylate monomer, styrene monomer or its combination.According to the present invention, the monomeric consumption of high glass-transition temperature, in total monomer weight, for about 2 weight % to about 60 weight %, be preferably about 5 weight % to about 50 weight %.
Can be used for " monomer of lower glass transition temperatures (Tg) " of the present invention; Generally speaking be meant and have second-order transition temperature less than about 70 ℃ monomer; The monomer that is applicable to lower glass transition temperatures of the present invention can be second-order transition temperature less than about 70 ℃ (methyl) acrylate monomer; It for example but is not limited to: methyl acrylate (methyl acrylate), (methyl) ethyl propenoate (ethyl (meth) acrylate), (methyl) propyl acrylate (propyl (meth) acrylate), (methyl) n-butyl acrylate (n-butyl (meth) acrylate), (methyl) 2-EHA (2-ethylhexyl (meth) acrylate), (methyl) vinylformic acid n-octyl (n-octyl (meth) acrylate), (methyl) NSC 11786 (hexyl (meth) acrylate), (methyl) vinylformic acid pentyl ester (pentyl (meth) acrylate), (methyl) vinylformic acid heptyl ester (heptyl (meth) acrylate), (methyl) Isooctyl acrylate monomer (isooctyl (meth) acrylate), (methyl) vinylformic acid ester in the ninth of the ten Heavenly Stems (nonyl (meth) acrylate), (methyl) NSC 20949 (isobutyl (meth) acrylate), (methyl) vinylformic acid-2-butyl ester, (methyl) decyl acrylate (decyl (meth) acrylate), (methyl) isodecyl acrylate (isodecyl (meth) acrylate), different three esters in the last of the ten Heavenly stems (isotridecyl (meth) acrylate) of (methyl) vinylformic acid, (methyl) benzyl acrylate (benzyl (meth) acrylate), (methyl) lauryl acrylate (dodecyl (meth) acrylate) or its combination.According to a preferred implementation of the present invention; The monomer of lower glass transition temperatures (Tg) can be selected from, but is not limited to: methyl acrylate, (methyl) ethyl propenoate, (methyl) propyl acrylate, (methyl) n-butyl acrylate, (methyl) NSC 20949, (methyl) Isooctyl acrylate monomer or its combination.According to the present invention, the monomeric consumption of lower glass transition temperatures is in total monomer weight, for about 2 weight % to about 60 weight %, be preferably about 5 weight % to about 50 weight %.
The monomer of aforementioned high glass-transition temperature and the monomer of lower glass transition temperatures are used to adjust the second-order transition temperature of the metal powder bearing tree oil/fat composition that is produced.The monomeric amount ratio of the monomer of high glass-transition temperature and lower glass transition temperatures depends on the property requirements of the metallic paint coating of wishing to get usually, can be between about 1: 10 to 10: 1, preferably between about 1: 5 to 5: 1.Metal powder bearing tree oil/fat composition of the present invention have about 55 ℃ to about 135 ℃ second-order transition temperature, be preferably have about 70 ℃ to about 120 ℃ second-order transition temperature.If the second-order transition temperature of the metal powder bearing tree oil/fat composition that produced is too high, is prone to cause metal powder bearing tree oil/fat composition leveling characteristics and operability not good, and makes to film crisp and made and film base material adhesion decline; And, be prone to make metal powder bearing tree oil/fat composition hardness not enough if the second-order transition temperature of metal powder bearing tree oil/fat composition is low excessively, cause directional effect and anti-alcohol (solvent) property not good.
Solvent used in the present invention does not have particular restriction; The solvent that is well known to those skilled in the art all can be used for the present invention; Be preferably the tool boiling point about 70 ℃ to about 200 ℃ solvent, it is such as but not limited to alkanes, ketone, ester class, aromatic hydrocarbons, alcohols, ether alcohol class or its mixture.
Be applicable to that alkane solvents of the present invention can be selected from but is not limited to normal hexane, normal heptane, isoheptane or its mixture.Be applicable to that aromatic hydrocarbons solvent of the present invention can be selected from but is not limited to benzene,toluene,xylene or its mixture.Be applicable to that ketones solvent of the present invention can be selected from but is not limited to methyl ethyl ketone (MEK), acetone, MIBK, pimelinketone, 4-hydroxy-4-methyl-2 pentanone or its mixture.Be applicable to that esters solvent of the present invention can be selected from but is not limited to isobutyl acetate (IBAC), ETHYLE ACETATE (EAC), butylacetate (BAC), ethyl formate, methyl acetate, ethoxyethyl acetate(EA), acetate oxyethyl group propyl ester, ethyl isobutyrate, monomethyl ether Ucar 35 acetic ester, pentyl acetate or its mixture.Be applicable to that alcoholic solvent of the present invention can be selected from but is not limited to ethanol, Virahol, propyl carbinol, primary isoamyl alcohol and composition thereof; Be applicable to that ether alcohol kind solvent of the present invention is such as but not limited to butyl glycol ether (BCS), ethyl cellosolve acetate (CAC), ethylene glycol ethyl ether (ECS), propylene glycol monomethyl ether, propylene glycol methyl ether acetate (PMA), propylene glycol monomethyl ether propionic ester (PMP), butyleneglycol methyl ether (DBE) or its mixture.According to a preferred implementation of the present invention, solvent can be selected from toluene, YLENE, ETHYLE ACETATE, butyl glycol ether, butyleneglycol methyl ether, methyl ethyl ketone, butylacetate and combination thereof.The consumption of solvent is counted about 20 weight % to about 80 weight % with the gross weight of metal powder bearing tree oil/fat composition, is preferably about 30 weight % to about 70 weight %.
For producing molecule and intermolecular chemical bond, improve coating strength, metal powder bearing tree oil/fat composition of the present invention can optionally further comprise a cross-linking monomer, crosslinked to form (crosslinking).Can be used for cross-linking monomer of the present invention and have at least one functional group that can produce crosslinking reaction, this functional group is selected from hydroxyl (OH), carboxyl (COOH), amino (NH 2), epoxy group(ing) and combination thereof, be preferably hydroxyl.Above-mentioned cross-linking monomer is selected from (methyl) vinylformic acid, epoxy (methyl) propenoate, 2-Hydroxy ethyl acrylate (HEA), vinylformic acid-2-hydroxy propyl ester (HPA), vinylformic acid-2-hydroxyl butyl ester, methylacrylic acid-2-hydroxy methacrylate (HEMA), methylacrylic acid-2-hydroxy propyl ester (HPMA), methylacrylic acid-4-hydroxyl butyl ester, SY-Monomer G, allyl acrylate, allyl methacrylate(AMA), methylacrylic acid acetyl triethyl, diacetone-acryloamide(DAA), adipic dihydrazide, N hydroxymethyl acrylamide, 2-(dimethylamino) ethyl propenoate, 2-(dimethylamino) Jia Jibingxisuanyizhi, trimethylolpropane trimethacrylate, diethylene glycol diacrylate, Diethylene Glycol dimethacrylate, 1; 4-butylene glycol diacrylate, 1,6 hexanediol diacrylate, (methyl) acrylic amide, N-butoxymethyl acrylic amide, N-methoxyl group (methyl) acrylic amide and combination thereof.According to a preferred implementation of the present invention, cross-linking monomer can be selected from 2-Hydroxy ethyl acrylate, methylacrylic acid-2-hydroxy methacrylate, methylacrylic acid-2-hydroxy propyl ester, vinylformic acid-2-hydroxy propyl ester and combination thereof.If when needing to add, the consumption of this cross-linking monomer is up to about 30 weight % in total monomer weight, be preferably about 5 weight % to about 15 weight %.
Resin combination of the present invention can further comprise adhesion promoter, in order to increase the tackiness of metal powder bearing tree oil/fat composition and base material.The kind of above-mentioned adhesion promoter can be well known to those skilled in the art, and it is such as but not limited to silane coupling agent, phosphate compounds, polyvalent metal salt or ester class, organic polymer resin or chlorinatedpolyolefins etc.Those skilled in the art are decided by the kind of base material, and the good adhesion promoter of sticking power of selection and this base material for example, when base material is metal or plastics, can be selected organic polymer resin for use, like epoxy resin or vibrin.It is adhesion promoter that a specific embodiment of the present invention is to use vibrin; Its any technology well-known to those skilled in the art capable of using usually obtains, and is for example prepared by the polycondensation of acid constituents (such as polyhydric carboxylic acid and/or its acid anhydrides) with polyhydroxy-alcohol.The commercial polyester resin example comprises: ETERKYD 3330-X-70-2, ETERKYD 5052-R-60 (Changxing chemical industry system).According to the present invention, when adding as if need, the consumption of this adhesion promoter is up to about 30 weight % in total monomer weight, is preferably about 5 weight % to about 20 weight %.
Metal powder bearing tree oil/fat composition of the present invention can be prepared by any mode well-known to those skilled in the art, for example can be made by the method that comprises following steps:
(1) solvent is heated.
(2) be used for the various monomers of polymerization, mix, under suitable temperature and reaction times condition, carry out polymerization with solvent that is fit to and optionally suitable initiator with the preparation polymkeric substance.
(3) in appropriate time, polymkeric substance is splashed in the solvent.
(4) follow heat preservation solidification.
Above-mentioned steps (1), solvent are heated to 60 ℃ to 150 ℃ approximately, and the employed initiator of above-mentioned steps (2) is a thermal initiator, can be any those skilled in the art institute well known, and it for example can be superoxide or azo compound.Be applicable to that superoxide of the present invention can be: the special butyl ester (tert-butyl peroxy-2-ethyl hexanoate) of peroxo-2 ethyl hexanoic acid; The special pentyl ester (tert-amyl peroxy-2-ethyl hexanoate) of peroxo-2 ethyl hexanoic acid; T-butyl hydrogen peroxide (tert-butyl hydroperoxide); Isopropyl benzene hydroperoxide (cumene hydroperoxide); Di-tert-butyl peroxide (di-tert-butyl peroxide); Di Cumyl Peroxide 99 (dicumyl peroxide); Special butyl ester (tert-butyl peroxybenzoate) of peroxo-phenylformic acid or BPO (dibenzoyl peroxide); Be applicable to that azo compound of the present invention can be: 2,2 '-Diisopropyl azodicarboxylate (2,2 '-azodi (isobutronitrile) or 2,2 '-azo two (2-methylbutyronitrile) (2,2 '-azodi (2-methylbutronitrile).The consumption of initiator is in total monomer weight, for about 0.1 weight % to about 10 weight %, be preferably about 0.5 weight % to about 5 weight %.Above-mentioned steps (3) is polymkeric substance to be splashed in the solvent to about 4 hours time in about 30 minutes, and in above-mentioned steps (4), about 1~5 hour of heat preservation solidification time.
Metal powder bearing tree oil/fat composition of the present invention is not halogen-containing, and for the significant effect of having aligned of metal powder, solvent resistance and weathering resistance are good again, and has good interlayer adhesion.So metal powder bearing tree oil/fat composition of the present invention can directly add metal powder processing coating, and be applied to any suitable substrates surface.Perhaps, metal powder bearing tree oil/fat composition of the present invention is used for metal coating composition, is used as the metal powder directing agent, helps metal powder to align.
The base material that is suitable for for example can be ceramic tile, timber, leather, stone material, glass, metal, alloy, paper, plastics, fiber, cotton goods etc., is preferably metal, alloy or plastics.Said plastic basis material refers to the plastic basis material of 3C electronic product, household electrical appliances and used for cosmetic especially, for example is acrylonitrile-butadiene-styrene (ABS), polycarbonate (PC), Vestolen PP 7052 (PP), polymethylmethacrylate (PMMA) or its mixture.Above-mentioned metal powder for example is the painted or uncoloured metallic substance of metal or alloy.Above-mentioned metallic substance is not limited to them, and for example is aluminium, aluminum oxide, copper, zinc, iron, nickel or its analogue, and preferred metal powder is an aluminium powder.
As above-mentioned, the present invention provides a kind of metal coating composition in addition, and it comprises: metal powder; Tackiness agent (binder); Thinner and as above-mentioned metal powder bearing tree oil/fat composition.Metal coating composition of the present invention can form good interlayer with other finish paint and adhere to, and embodies higher brightness and silver powder mirror effect.
Above-mentioned metal powder kind such as this paper previous definition.According to the present invention, the consumption of metal powder is in the metal coating composition gross weight, for about 0.1 weight % to about 15 weight %, be preferably about 1 weight % to about 10 weight %.
Above-mentioned tackiness agent generally can use, but is not limited to epoxy resin, aminoresin, urethane resin, vibrin, silicone, vinyl resin or its mixture, is preferably vinyl resin, vibrin or its mixture, is more preferred from vinyl resin.According to the present invention, adhesive consumption is in the metal coating composition gross weight, for about 10 weight % to about 50 weight %, be preferably about 15 weight % to about 40 weight %.
Add thinner in metal coating composition with adjustment viscosity in the scope that is fit to operation.Thinner can add when each composition of allotment, also can when finally being coated with, add.According to an embodiment of the present invention; Thinner should suitably add when each composition of allotment, with the scope of control solid content (solid content) about 10~90%, and when finally adjusting viscosity; Further adjust to the viscosity of spraying, make solid content in about 5~70% scope.The content of thinner is not limited to them, and can adjust according to actual condition and demand, obtains required dope viscosity and gets final product.Above-mentioned thinner does not have particular restriction, can be the known organic solvent of any those of ordinary skills, and it is such as but not limited to alkanes, aromatic hydrocarbons, ketone, ester class, alcohols, ether alcohol class or its mixture.Be applicable to that alkane solvents of the present invention can be selected from but is not limited to normal hexane, normal heptane, isoheptane or its mixture.Be applicable to that aromatic hydrocarbons solvent of the present invention can be selected from but is not limited to benzene,toluene,xylene or its mixture.Be applicable to that ketones solvent of the present invention can be selected from but is not limited to methyl ethyl ketone (MEK), acetone, MIBK, pimelinketone, 4-hydroxy-4-methyl-2 pentanone or its mixture.Be applicable to that esters solvent of the present invention can be selected from but is not limited to isobutyl acetate (IBAC), ETHYLE ACETATE (EAC), butylacetate (BAC), ethyl formate, methyl acetate, ethoxyethyl acetate(EA), acetate oxyethyl group propyl ester, ethyl isobutyrate, monomethyl ether Ucar 35 acetic ester, pentyl acetate or its mixture.Be applicable to that alcoholic solvent of the present invention can be selected from but is not limited to ethanol, Virahol, propyl carbinol, primary isoamyl alcohol or its mixture; Be applicable to that ether alcohol kind solvent of the present invention is such as but not limited to butyl glycol ether (BCS), ethyl cellosolve acetate (CAC), ethylene glycol ethyl ether (ECS), propylene glycol monomethyl ether, propylene glycol methyl ether acetate (PMA), propylene glycol monomethyl ether propionic ester (PMP), butyleneglycol methyl ether (DBE) or its mixture.Preferable absorbent is YLENE, methyl ethyl ketone, butylacetate, butyl glycol ether, propylene glycol methyl ether acetate or butyleneglycol methyl ether.
Use cellulose acetate butyrate (cellulose acetate butyrate in the known metal coating composition mostly; CAB), soluble cotton (nitrocellulose; NC) or chlorine vinegar (vinyl chloride-vinyl acetate) as the metal powder directing agent, it all has some shortcomings.Metal powder bearing tree oil/fat composition of the present invention is used for metal coating composition, represents excellent solvent release (fast doing), dimensional stability (promoting silver powder to arrange), and have water tolerance, chemical resistant properties (alcohol resistance) and scratch resistance (hardness is high).Simultaneously with other metal powder directing agent; Soluble cotton (nitrocellulose for example; NC), (cellulose acetate butyrate CAB) waits the compatibility with excellence for chlorine vinegar (vinyl chloride-vinyl acetate) or cellulose acetate butyrate.So metal powder bearing tree oil/fat composition of the present invention can use separately, also can optionally mix use with other metal powder directing agent.According to the present invention, the consumption of the directed resin of metal powder is in the metal coating composition gross weight, for about 1 weight % to about 40 weight %, be preferably about 2 weight % to about 30 weight %.
Optionally; Metal coating composition of the present invention can add colorant; This colorant can be transparent, translucent or opaque material; Be the coating essence color that can give compsn of the present invention and formed by these compsns or pigment, dyestuff or the filler of decorative material surface imperfection, said pigment, dyestuff and filler can use separately or two or more combinations uses.Preferred colorant is a pigment; The instance of this pigment has pigment dyestuff, such as azo huge legendary turtle compound type pigment, insoluble azo type pigment, through thick and azo type pigment, diketopyrrolo-pyrrole type pigment, benzimidazolone type pigment, phthalocyanine type pigment, indigo type pigment 、 perylene ketone (perynone) type pigment, dibenzanthracene type pigment, two type pigment, ketone type pigment, isoindolinone (isoindorinone) type pigment and metal chelate type pigment; Mineral dye is such as chrome yellow, Zh 1, colcother, carbon black and titanium oxide; And analogue.The colorant used in the present invention filling pigment of except pigment, can also arranging in pairs or groups such as lime carbonate, permanent white, clay, talcum and analogue thereof, has the coating film thickness of increasing, improves coating hardness, fills the base material hole, effect such as reduces cost.
According to the purposes that required finished product is filmed, coating composition of the present invention can further comprise habitual auxiliary agent in the affiliated technical field of one or more the present invention.The auxiliary agent that can optionally adopt for example comprises adhesion promoter, anti-settling agent, dispersion agent, matting agent, skimmer, inhibitor; Auxiliary rheological agents, tranquilizer, flow agent, wetting agent, anti-flooding agent and combination thereof; The kind of these auxiliary agents is known by those skilled in the art, and its consumption also can determine according to different demands for those skilled in the art easily.
Above-mentioned metal coating composition can be coated to by the mode that any those skilled in the art knew on the surface of base material; Forming one films; Oven dry afterwards; Form thickness and be about 5 to 20 microns coating; Above-mentioned coating method can adopt spraying type coating (spray coating), brushing (brush coating), roller coat (roller coating), line bar coating (bar coating), slit mold pressing coating (slot die coating), letterpress coating (gravure coating), ramp type coating (slide coating) or showering curtain type to be coated with (curtain coating); The kind of described base material such as this paper previous definition.
Following examples are to be used for the present invention is described further, and are not in order to limit scope of the present invention.Modification that any those skilled in the art can reach easily and change include in the scope of present specification disclosure and appended claims.
The preparation of embodiment 1 metal powder bearing tree oil/fat composition
Getting the toluene of 580 grams puts into the four-hole reaction flask and is heated to 85 ℃; Splash in the reaction flask after the vibrin (ETERKYD 3330-X-70-2 (Changxing)) of the Butyl Acrylate Monomer of the NSC 20956 monomer of the MMA MONOMER of the isobornyl methacrylate monomer of 50 grams, 250 grams, 150 grams, 50 grams, 70 grams and the 10 gram Lucidol pre-mixings; Dripped off in about 2 hours; And heat preservation solidification was packed after 3 hours; Measure viscosity Z1~Z2, the resin of solid content 50% with form viscometer (BYK-Gardner viscosity tube).
The preparation of embodiment 2 metal powder bearing tree oil/fat compositions
Getting butylacetate that the toluene and 260 of 295 grams restrains puts into the four-hole reaction flask and is heated to 115 ℃; And with after the vibrin (ETERKYD 5052-R-60 (Changxing)) of the NSC 20956 monomer of the Butyl Acrylate Monomer of the MMA MONOMER of the isobornyl methacrylate monomer of 75 grams, 300 grams, 75 grams, 50 grams, 50 grams and the special butyl ester pre-mixings of 5 gram peroxo-phenylformic acid; Splash in the reaction flask; Dripped off in about 2 hours; And heat preservation solidification packs after 3 hours, measures with form viscometer (BYK-Gardner viscosity tube) and can obtain viscosity Y~Z, the resin of solid content 50%.
The preparation of embodiment 3 metal powder bearing tree oil/fat compositions
Getting butylacetate that the YLENE and 250 of 250 grams restrains puts into the four-hole reaction flask and is heated to 125 ℃; And with after the hydroxy ethyl methacrylate monomer of the NSC 20949 monomer of the vinylbenzene of the MMA MONOMER of the isobornyl methacrylate monomer of 25 grams, 225 grams, 150 grams, 50 grams, 50 grams and the 5 gram peroxo-phenylformic acid spy butyl ester pre-mixings; Splash in the reaction flask; Dripped off in about 3 hours; And heat preservation solidification packs after 3 hours, measures with form viscometer (BYK-Gardner viscosity tube) and can obtain viscosity X~Y, the resin of solid content 50%.
The composition arrangement of the resin combination of previous embodiment 1 to 3 is like following table 1.
Table 1
Figure BDA0000134819060000101
Embodiment 4 is according to the metallic paint prescription of following table 2, and preparing metal coats with lacquer coating.
Table 2: metallic paint coating test formulations
Figure BDA0000134819060000111
Unit: weight part
Embodiment 5
According to the metallic paint prescription of table 2 among the embodiment 4, preparing metal lacquer coating, wherein the directed resin of metal powder is allocated according to following weight part:
Metal powder aligns the promotion resin Add-on
CAB 381-2.0 (20%), the EASTMAN corporate system 5
The metal powder bearing tree oil/fat composition (50%) of embodiment 1 6
And the butylacetate consumption changes 10.5 weight parts into.
Comparative example 1
According to the metallic paint prescription of table 2 among the embodiment 4, preparing metal lacquer coating, wherein the directed resin of metal powder changes the commercial metals fen-ting into to resin CAB 381-2.0 (20%), EASTMAN corporate system, consumption 20 weight parts; The butylacetate consumption changes 1.5 weight parts into.
Comparative example 2
According to the metallic paint prescription of table 2 among the embodiment 4, preparing metal lacquer coating, but do not add the directed resin of metal powder; Thermosetting acrylic resin, consumption change 48 weight parts into; The butylacetate consumption changes 17.5 weight parts into.
With embodiment 4 and 5 and the metallic paint accomplished of comparative example 1 and 2 preparations be sprayed on the base material; The test of filming after the oven dry; Its operating condition is following: after with thinner the metal coating composition of above-mentioned gained being diluted to solid composition about 20%, be coated with above-mentioned metal coating composition on substrate, afterwards in 150~160 ℃ of oven dry 20 minutes; To form dry thickness is 8 to 12 microns coating for metal substrate, carries out following dependence test afterwards; Carry out interlayer when test adhesion, need repetition above-mentioned steps 5 times (5 be coated with 5 roasting) after, test again.
Testing method
Glossiness: utilize glossmeter [VG2000, Nippon Denshoku company], light source is projected to the testing sample surface with 60 ° of input angles, measure its surface gloss in 60 ° of reflection angle positions again with ASTM D523 method.
Sticky limit: scrape in film coated surface with hundred lattice scrapers, the back is with after taping on, and 90 ° tear up, and judges and peels off the lattice number.
Hardness: utilize pencil scratching tester [Elcometer 3086, SCRATCH BOY], (1H 2H) tests the surperficial pencil hardness of microstructured layers of filming with the JISK-5400 method with the Uni of Mitsubishi pencil.
Water tolerance: testing sample was soaked 120 hours with 45 ℃, observe condition of surface.
Alcohol resistance:, observe condition of surface with 95% alcohol wipe film coated surface 100 times.
The interlayer adhesion: scrape in film coated surface with hundred lattice scrapers, the back is with after taping on, and 90 ° tear up, and judges and peels off the lattice number.
Above-mentioned sticky limit and interlayer adhesion criterion are following:
Nothing comes off 1~5% comes off 5~15% come off 16~50% come off >50% comes off
×
Test result:
The test result of above-mentioned gained is recorded in table 3.
Table 3
Figure BDA0000134819060000131
Can know by table 3; Use the metallic paint of metal powder bearing tree oil/fat composition of the present invention; Compared to not adding the directed resin (comparative example 2) of metal powder, it is filmed and has good glossiness, shows that the directed resin of metal powder of the present invention has the good metal orientation property; Use the metallic paint of metal powder bearing tree oil/fat composition of the present invention; Its hardness of film is high and have good sticky limit, water tolerance, alcohol resistance and adhere with interlayer; Compared to commercially available metal powder bearing tree oil/fat composition (comparative example 1); Add filming of metal powder bearing tree oil/fat composition of the present invention and have preferred hardness, alcohol resistance and interlayer adhesion; When partly replacing commercially available metal powder bearing tree oil/fat composition (embodiment 5) with metal powder bearing tree oil/fat composition of the present invention, can improve hardness, alcohol resistance and the interlayer adhesion of filming, improve the commercially available shortcoming that metal powder bearing tree oil/fat composition hardness is not high and alcohol resistance is not good.
The directed resin of metal powder of the present invention; Can effectively promote the metal powder arrangement in the metallic paint (to comprise MMA MONOMER; Molecular weight is big; During solvent evaporates in metallic paint, the strength when it is pressed up or down has the effect of impelling metal powder to arrange in the same direction), and can use (having favorable compatibility) separately or with other resin in the lump with vinyl chloride-vinyl acetate resin, Nitrocellulose, cellulose acetate butyrate and thermoplastic acrylic resin.In addition, its abrasion resisting, water-fast and alcohol resistance is good has good interlayer adhesion again, so the metallic paint of being prepared is able to adhere to the good interlayer of clear finish (UV finish paint) formation, manifests higher brightness and metal powder mirror effect.
Use the metallic paint of metal powder bearing tree oil/fat composition of the present invention, do not need derivatived cellulose; Even and if it contains derivatived cellulose, also only need a small amount of (consumption that can significantly reduce derivatived cellulose reaches at least 60%).Metallic paint coating composition of the present invention is also without chlorine vinegar and soluble cotton.So metallic paint coating composition weathering resistance of the present invention good (being difficult for yellow), environmental protection (not halogen-containing) and low price (the cellulose acetate butyrate price is high).In addition, it has excellent physicals, refers to that especially its wear resistant, interlayer adhesion and color and luster fullness ratio are good, and anti-solvent.

Claims (16)

1. a metal powder bearing tree oil/fat composition is characterized in that, comprises polymkeric substance and solvent, and this polymkeric substance comprises following monomer as polymerized unit: (a) MMA MONOMER; (b) monomer of high glass-transition temperature; Reach (c) monomer of lower glass transition temperatures, wherein the weight-average molecular weight of this polymkeric substance is at least about 50,000.
2. resin combination as claimed in claim 1 is characterized in that, the weight-average molecular weight of this polymkeric substance is about 50,000 to about 150,000.
3. resin combination as claimed in claim 1 is characterized in that, the consumption of this MMA MONOMER, in total monomer weight, for about 30 weight % to about 80 weight %.
4. resin combination as claimed in claim 1 is characterized in that, the monomer of this high glass-transition temperature is to have second-order transition temperature greater than about 70 ℃ monomer.
5. resin combination as claimed in claim 1 is characterized in that, the monomer of this high glass-transition temperature is (methyl) IBOA monomer, (methyl) cyclohexyl acrylate monomer, styrene monomer or its mixture.
6. resin combination as claimed in claim 1 is characterized in that, the monomeric consumption of this high glass-transition temperature, in total monomer weight, for about 2 weight % to about 60 weight %.
7. resin combination as claimed in claim 1 is characterized in that, the monomer of this lower glass transition temperatures is to have second-order transition temperature less than about 70 ℃ monomer.
8. resin combination as claimed in claim 1; It is characterized in that the monomer of this lower glass transition temperatures is selected from: methyl acrylate, (methyl) ethyl propenoate, (methyl) propyl acrylate, (methyl) n-butyl acrylate, (methyl) 2-EHA, (methyl) vinylformic acid n-octyl, (methyl) NSC 11786, (methyl) vinylformic acid pentyl ester, (methyl) vinylformic acid heptyl ester, (methyl) Isooctyl acrylate monomer, (methyl) vinylformic acid ester in the ninth of the ten Heavenly Stems, (methyl) NSC 20949, (methyl) vinylformic acid-2-butyl ester, (methyl) decyl acrylate, (methyl) isodecyl acrylate, (methyl) vinylformic acid different three the last of the ten Heavenly stems ester, (methyl) benzyl acrylate, (methyl) lauryl acrylate and combination thereof.
9. resin combination as claimed in claim 1 is characterized in that, the monomeric consumption of this lower glass transition temperatures, in total monomer weight, for about 2 weight % to about 60 weight %.
10. resin combination as claimed in claim 1 is characterized in that, this metal powder bearing tree oil/fat composition have about 55 ℃ to about 135 ℃ second-order transition temperature.
11. resin combination as claimed in claim 1 is characterized in that, said solvent is selected from: the about 70-200 of boiling point ℃ alkanes, ketone, ester class, aromatic hydrocarbons, alcohols, ether alcohol class and composition thereof.
12. resin combination as claimed in claim 1 is characterized in that, the consumption of this solvent, in the gross weight of resin combination, for about 20 weight % to about 80 weight %.
13. a metal coating composition is characterized in that it comprises metal powder; Tackiness agent; The resin combination of thinner and claim 1.
14. metal coating composition as claimed in claim 13 is characterized in that, this metal powder is the painted or uncoloured metallic substance of metal or alloy.
15. metal coating composition as claimed in claim 13 is characterized in that, this tackiness agent is epoxy resin, aminoresin, urethane resin, vibrin, silicone, vinyl resin or its mixture.
16. coating composition as claimed in claim 13 is characterized in that, this thinner is the organic solvent that is selected from alkanes, aromatic hydrocarbons, ketone, ester class, alcohols, ether alcohol class and composition thereof.
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CN106876003A (en) * 2017-03-09 2017-06-20 江苏欧耐尔新型材料股份有限公司 Match solar battery front side conductive silver paste and preparation method without net netting version
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CN112480754A (en) * 2020-11-12 2021-03-12 西北永新涂料有限公司 Cold-coated silver finish containing modified acrylic polymer resin A and preparation method thereof
CN112480754B (en) * 2020-11-12 2022-01-11 西北永新涂料有限公司 Cold-coated silver finish containing modified acrylic polymer resin A and preparation method thereof
CN115074016A (en) * 2021-03-10 2022-09-20 浙江佑谦特种材料有限公司 Water-based single-coating UV (ultraviolet) curing aluminum powder paint and preparation method thereof
CN115074016B (en) * 2021-03-10 2023-09-12 浙江佑谦特种材料有限公司 Water-based single-coating UV (ultraviolet) curing aluminum paint and preparation method thereof

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