CN102796442A - Unsaturated polyester paint composition - Google Patents
Unsaturated polyester paint composition Download PDFInfo
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- CN102796442A CN102796442A CN2011101374145A CN201110137414A CN102796442A CN 102796442 A CN102796442 A CN 102796442A CN 2011101374145 A CN2011101374145 A CN 2011101374145A CN 201110137414 A CN201110137414 A CN 201110137414A CN 102796442 A CN102796442 A CN 102796442A
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Abstract
The invention relates to an unsaturated polyester paint composition, particularly an unsaturated polyester paint composition having high transparency, high hardness and wear resistance after curing. The invention also relates to a preparation method of the unsaturated polyester paint composition and a high-transparency high-hardness wear-resistant coating prepared from the unsaturated polyester paint composition.
Description
Technical field
The present invention relates to a kind of unsaturated polyester coating compsn, more specifically, relate to the unsaturated polyester coating compsn that has high-clarity, high firmness and wear resistance behind a kind of the curing.The invention still further relates to wear-resistant coating this unsaturated polyester coating preparation of compositions method and high-clarity therefrom, high firmness.
Background technology
At present, unsaturated polyester coating is to use one of coating the most widely in the woodenware field, and it has the coating hardness height, coating is plentiful and can be disposable thickly numerous advantages such as be coated with.Particularly, unsaturated polyester coating can be coated on such as on the woodenware of office furniture, hotel furniture as undercoat.Traditional unsaturated polyester coating compsn adds talcum powder, transparent powder (containing silicate or calcium sulfate of crystal water etc.) etc. usually as filler.But substantive defects such as that the coating that is obtained by this coating composition has is opaque, turn white, be prone to scratch and use after for some time that coating is sunk.
Personnel have proposed a kind of wear-resistant primer that is used in the wood working in the industry.But the hardness of this wear-resistant primer and wear resistance are limited, can not satisfy the growing requirement to appearance of coat, hardness and wear resistance of people.
Therefore, still need the unsaturated polyester coating compsn that has high-clarity, high firmness and high-wearing feature behind a kind of the curing.
Summary of the invention
The invention provides a kind of unsaturated polyester coating compsn, it comprises: unsaturated polyester resin; Initiator; And promotor, wherein, said coating composition also comprises, and with respect to the gross weight of said unsaturated polyester coating compsn, the Mohs' hardness of 3wt% to 60wt% is that at least 5.0 silico-aluminate is as filler.In one embodiment, said silico-aluminate can have about 5.5 to about 9 Mohs' hardness.In one embodiment, said silico-aluminate can be not moisture basically.In one embodiment, said silico-aluminate can have 1.45 to 1.60 specific refractory power.
In one embodiment, said unsaturated polyester coating compsn can comprise with respect to the gross weight of said coating composition:
A) unsaturated polyester resin of 35wt% to 95wt%
B) silico-aluminate of 3wt% to 60wt%;
C) initiator of 0.5wt% to 3wt%; With
D) promotor of 0.5wt% to 2wt%.
In one embodiment, said unsaturated polyester coating compsn can further comprise, with respect to the gross weight of said coating composition, and the reactive solvents of 0.2wt% to 25wt%.
In one embodiment; Said unsaturated polyester coating compsn can further comprise; Gross weight with respect to said coating composition; The additional additives of 0.2wt% to 25wt%, said additional additives comprise one or more or its arbitrary combination in lubricant, wetting dispersing agent, skimmer, flow agent, anti-sedimentation agent and the added solvent.
The invention provides a kind of coating that can obtain through above-mentioned unsaturated polyester coating compsn.
The inventor surprisingly finds, with Mohs' hardness at least 5.0, specific refractory power is that 1.45 to 1.60 silico-aluminate adds in the coating composition that unsaturated polyester resin constitutes as film-forming components and significantly improved transparency, hardness and the wear resistance of solidifying the back coating as filler.And above-mentioned silico-aluminate that will be more a large amount of adds in the unsaturated polyester coating compsn as filler, and desired performance more than not only can not sacrificing can also significantly reduce production costs, and improves the competitiveness of product in market.
Embodiment
Only if this paper has statement in addition, describe the term " " that uses in the context of the present invention or " a kind of " and be appreciated that and comprise plural number.
Be described to comprise or comprise under the situation of specific components at compsn; Do not get rid of said composition and comprise other selectable components, only and if indicate in addition clearly, estimate that said composition also can be made up of related specific components or form; Perhaps be described to comprise or comprise under the situation of specific process step in method; Do not get rid of the optional process step that this method comprises other, only and if indicate in addition clearly, estimate that this method also can be made up of related specific process step or form.
For easy, this paper only discloses some numerical ranges clearly.Yet lower limit can be combined to form not the clearly scope of record with any upper limit arbitrarily; And lower limit can be combined to form not the clearly scope of record with other lower limit arbitrarily, and the same upper limit arbitrarily can be combined to form not the clearly scope of record with any other upper limit.In addition, although not clearly record, each point or single numerical value between endpoints of ranges are included in this scope.Thereby each point or single numerical value can be used as lower limit or the upper limit of self and other point or single combinations of values or be combined to form not the clearly scope of record with other lower limit or the upper limit arbitrarily.
The two all is meant the term that uses among this paper " oligopolymer " and " polymkeric substance ", and such macromole, this macromole contain in fact a plurality of or conceptive molecule deutero-unit by lower molecular weight.Usually, term " oligopolymer " can be used to more specifically refer to, the macromole of relative intermediate molecular weight, the wherein character of oligopolymer noticeable change along with one or several unitary removal.Polymkeric substance can be described any macromole prevailingly; Also the high relatively macromole of molecular weight can be described more specifically; Wherein add usually or remove one or several unit the influence of this molecular property ignore (but maybe always not this situation, for example depend on the situation of the small detail of molecular structure) in some character key of polymkeric substance.Will be understood that; Molecular weight border between oligopolymer and the polymkeric substance (with its concrete implication but not general implication) can change according to concrete macromole and/or interested application, so can be considered at same macromole maybe be significantly overlapping under the two the situation of oligopolymer and polymkeric substance on this molecular weight border.Therefore, only if the statement of the clear from context among this paper, the term that uses among this paper " oligopolymer " and " polymkeric substance " are used alternatingly.
The invention provides a kind of unsaturated polyester coating compsn, it comprises: unsaturated polyester resin; Initiator; And promotor, wherein, said coating composition also comprises, and based on the gross weight of said unsaturated polyester coating compsn, the Mohs' hardness of 3wt% to 60wt% is that at least 5.0 silico-aluminate is as filler.In one embodiment, said coating composition can further comprise, with respect to the gross weight of said coating composition, and the reactive solvents of 0.2wt% to 25wt%.In another embodiment; Said unsaturated polyester coating compsn can further comprise; Gross weight with respect to said coating composition; The additional additives of 0.2wt% to 25wt%, said additional additives comprises one or more in lubricant, wetting dispersing agent, skimmer, flow agent, anti-sedimentation agent and the added solvent.
In the present invention; Term " unsaturated polyester resin " is understood that; Contain in the molecular chain skeleton at least one-oligopolymer or the polymkeric substance of C (O) O-ester group and at least one-C=C-unsaturated double-bond, this oligopolymer or polymkeric substance can be through being prepared as follows: make unsaturated polyprotonic acid or acid anhydrides and polyvalent alcohol or bis-phenol carry out condensation reaction and obtain unsaturated polyester resin; Epoxy resin and unsaturated acid (such as (methyl) vinylformic acid) are reacted obtain vinyl ester resin.Therefore, the unsaturated polyester resin that uses among the present invention has also been contained vinyl ester resin.For easy, the two is referred to as unsaturated polyester resin.
In context of the present invention, unsaturated polyester resin can be the known any this resin of those of ordinary skill.The example can be people such as M.Malik at J.M.S.-Rev.Macromol.Chem.Phys., and p.139-165 C40 (2&3) finds in the survey article of (2000).This author is divided into five types based on the structure of these resins with them:
(1) ortho-resins: these resins are based on Tetra hydro Phthalic anhydride, maleic anhydride or fumaric acid and glycol; Said glycol for example is 1; 2-Ucar 35, terepthaloyl moietie, Diethylene Glycol, triethylene glycol, 1, ammediol, dipropylene glycol, tripropylene glycol, NSC 6366 or hydrogenant bisphenol-A;
(2) position resin between: these resins are by m-phthalic acid, maleic anhydride or fumaric acid and glycol preparation.This resin can comprise the more a high proportion of reactive diluent of neighbour position resin;
(3) dihydroxyphenyl propane fumarate: these are based on the bisphenol-A and the fumaric acid of ethoxylation;
(4) chlorine mattress acid esters: it is by the acid anhydrides of chloride/bromine or the resin of production of phenol;
(5) vinyl ester resin: these are the resins that the most often use, because their hydrolytic resistance and the mechanical property of excellence and their low-styrene quantity discharged.These resins only have unsaturated site endways, process with (methyl) acrylic acid reaction through epoxy resin (for example the diglycidyl ether of bisphenol-A, novolac resin type epoxide or based on the epoxide of tetrabromobisphenol-A).Can also use (methyl) acrylic amide to substitute (methyl) vinylformic acid and introduce unsaturated site.
Unsaturated polyester resin can adopt suitable polymerization method preparation well known to those of ordinary skill in the art; For example prepare through maleic anhydride and terepthaloyl moietie condensation reaction under suitable condition, perhaps the diglycidyl ether through dihydroxyphenyl propane prepares with the reaction under proper condition of (methyl) vinylformic acid.Perhaps, can use the instance of suitable arbitrarily commercially available product, such as unsaturated polyester resin 2302-2,2306-2 and the 2307S of Changxing chemical material (Zhuhai) ltd manufacturing of using as unsaturated polyester resin.
In an embodiment of the invention, the consumption of unsaturated polyester resin can change in wide region.Preferably; Unsaturated polyester coating compsn of the present invention can comprise; With respect to the gross weight of said coating composition, about 35 weight % are to about 95 weight %, preferred about 35 weight % to about 75 weight %, more preferably from about 35 weight % are to the unsaturated polyester resin of about 65 weight %.Particularly, said unsaturated polyester coating compsn with respect to the gross weight of said compsn, comprises the unsaturated polyester resin from about 40 weight %, about 45 weight % or about 50 weight % to 55 weight %, about 60 weight %.
Unsaturated polyester coating compsn of the present invention can comprise peroxy compound as initiator component.Superoxide can be the known any superoxide that can be used in the unsaturated polyester resin curing of those skilled in the art.This superoxide comprises organo-peroxide and inorganic peroxide (no matter being solid or liquid), can also use hydrogen peroxide.The instance of suitable superoxide is peroxide two carbonic ethers (formula-OC (O) O-OC (O) O-), peroxy esters (formula-C (O) OO-), diacyl peroxide (formula-C (O) OOC (O)-), dialkyl peroxide (formula-OO-) etc. for example.In nature, they can also be oligomeric or polymeric.Can in for example US 2002/0091214-A1 [0018] section, find the instance of a series of suitable superoxide.In the specification sheets that the superoxide manufacturer provides, those skilled in the art can easily obtain about the information of superoxide and understand the precaution in the operation superoxide.
Preferably, superoxide is selected from organo-peroxide.Suitable organo-peroxide instance is: the tertiary alkyl hydroperoxide (for example; Tert-butyl hydroperoxide) and other hydroperoxide (for example; Cumene hydroperoxide), peroxy esters or peracid (for example tertiary butyl peresters, benzoyl peroxide, peroxy acetic acid ester and perbenzoate, lauryl peroxide; Also comprise (two) peroxy esters), cross ether (for example, peroxide diethyl ether), cross ketone (for example, methyl ethyl ketone peroxide).Clearly, the mixture of these superoxide and other superoxide also can be used in the context of the present invention.Superoxide also can be a mixed peroxides,, comprises any two different superoxide that contain the peroxide part in the molecule that is.
Particularly preferably, superoxide was selected from ketone.Consider the character of operation and economy, most preferred superoxide is methyl ethyl ketone peroxide (a MEK superoxide).In embodiment of the present invention, use methyl ethyl ketone peroxide as initiator component, derive from the methyl ethyl ketone peroxide of Changfeng Chemical Plant, Shanghai such as use.
In an embodiment of the invention, the consumption of initiator component can be confirmed through normal experiment by those of ordinary skills.Preferably; Unsaturated polyester coating compsn of the present invention can comprise; With respect to the gross weight of said coating composition, about 0.5 weight % is to about 3 weight %, preferred about 0.6 weight % to about 2.5 weight %, more preferably from about 1.0 weight % are to the initiator of about 2.0 weight %.Particularly, said unsaturated polyester coating compsn comprises, with respect to the gross weight of said compsn, and the initiator from about 1.2 weight %, about 1.3 weight % or about 1.4 weight % to 1.6 weight %, about 1.8 weight % or about 1.9 weight %.
Unsaturated polyester coating compsn of the present invention can also comprise promoter component.Generally speaking, the unsaturated polyester resin system is solidified under the influence of superoxide and is come to promote in advance as promotor by metallic compound (especially cobalt salt), tertiary amine and mercaptan.Naphthoic acid cobalt, cobalt octoate and cobalt iso-octoate are widely used metallic compound promotor.In embodiment of the present invention, use cobalt iso-octoate as promoter component, derive from the cobalt iso-octoate EC-6 of Changfeng Chemical Plant, Shanghai such as use.
In an embodiment of the invention, the consumption of promotor can be confirmed through normal experiment by those of ordinary skills.Preferably, unsaturated polyester coating compsn of the present invention can comprise with respect to the about 0.5 weight % of the gross weight of said coating composition to about 2 weight %, preferred about 0.6 weight % to about 1.8 weight %, more preferably from about 0.8 weight % is to the promotor of about 1.6 weight %.Particularly, said unsaturated polyester coating compsn comprises, with respect to the gross weight of said compsn, and the promotor from about 1.0 weight %, about 1.2 weight % or about 1.3 weight % to 1.4 weight %, about 1.5 weight %.
In context of the present invention, filler can be organic or inorganic for example particle form.Coating of particles is not had particular restriction, and it can have any suitable shapes.The median size of filler can change in wide region, for example in about 10 nanometers to about 50 microns scope, change, but in order to improve the transparency of gained coating, filler should not have excessive median size, for example D
50Preferably, filler has and is no more than about 10 microns D
50One or more required character of coating that some fillers are also given compsn and/or formed by said composition except the effect of the dilatation agent of playing coating.For example, some fillers coating required color that can give compsn and obtain by said composition.In this case, this filler also is called as " pigment ".Some fillers can improve chemistry and/or physical properties, can improve the mechanical properties of the coating that is obtained by said composition especially.In this case, this filler also is called as " reinforcing filler ".
Unsaturated polyester coating compsn of the present invention can comprise, and with respect to the gross weight of unsaturated polyester coating compsn, the Mohs' hardness of 3wt% to 60wt% is that at least 5.0 silico-aluminate is as filler.In an embodiment of the invention, said silico-aluminate comprises the silico-aluminate with frame shape structure, preferably includes potash feldspar, nepheline, white garnet, sodalite and arbitrary combination thereof.In this article, term " silico-aluminate " is understood that: in silicate compound, part silicon-oxy tetrahedron skeleton is substituted and the silicate compound of formation by aluminum-oxygen tetrahedron.Preferably, said silico-aluminate has the frame shape structure through following formation: each silicon-oxy tetrahedron and four adjacent silicon-oxy tetrahedrons or aluminum-oxygen tetrahedron are linked, thereby form the unlimited skeleton that stretches of three-dimensional space.
In the preferred above-mentioned embodiment of the present invention, this silico-aluminate has at least 5.0 Mohs' hardness.Preferably have extremely about 9 Mohs' hardness of about 5.5., more preferably have 6.0 to 9 Mohs' hardness, most preferably have 7.0 to 8.0 Mohs' hardness.In the above-mentioned embodiment of preferred the present invention, this silico-aluminate is substantially free of water.In the present invention, " not moisture basically " is understood that, with respect to the gross weight of silico-aluminate, water-content is not higher than 0.5 weight %, preferably is not higher than 0.15 weight %.Also wanting in the preferred embodiment, this silico-aluminate has 1.45 to 1.60 specific refractory power, preferably has 1.50 to 1.55 specific refractory power.
As the instance of silico-aluminate, can use arbitrarily suitable natural silico-aluminate, such as available from the mineral nepheline MINEX 10 of silicon than Shanghai mining industry ltd of section (SIBELCO).
Except silico-aluminate, unsaturated polyester coating compsn of the present invention can also comprise any other filler that is suitable for being used in the unsaturated polyester coating compsn.After this, for the ease of discussing, other filler except that silico-aluminate that mixes in the unsaturated polyester coating compsn is collectively referred to as " additional filler ".Suitable exemplary additional filler for example comprises kaolin, titanium oxide, lime carbonate, talcum, permanent white and arbitrary combination thereof.In one embodiment, the consumption of additional filler with respect to the gross weight of coating composition, less than 5 weight %, preferably less than 2 weight %, is more preferably less than 1 weight %.Most preferably, unsaturated polyester coating compsn of the present invention only comprises Mohs' hardness and is at least 5.0 silico-aluminate.
The inventor finds that surprisingly the silico-aluminate of high firmness can obviously promote the hardness and the wear resistance of gained coating, thereby obtains the wear-resistant coating of high firmness.Thereby Mohs' hardness is the ideal filler that is applicable to the unsaturated polyester coating compsn at least 5.0 silico-aluminate.The inventor also finds; This silico-aluminate owing to have is easy to disperse, oil absorbency is poor, refractive index is near the characteristics of other components in the coating composition; Thereby by its unsaturated polyester coating compsn of processing even under high filler charge capacity, still have high-clarity, and can not turn white.
According to the present invention, the unsaturated polyester coating compsn can comprise, and based on the gross weight of said unsaturated polyester coating compsn, the above-mentioned silico-aluminate of about 3 weight % to 60 weight % is as filler.If the content of silico-aluminate is lower than 3% with respect to the gross weight of said coating composition, the improvement of gained coating aspect for example hardness, wear resistance is not enough so.Yet if the content of silico-aluminate is higher than 60wt%, silico-aluminate can't fully disperse in coating composition.Therefore, from optimizing the viewpoint of performance, unsaturated polyester coating compsn of the present invention with respect to the gross weight of said coating composition, can comprise 3 to 30wt%, more preferably 3 to 27wt% silico-aluminate.Certainly, if desired, also can in the unsaturated polyester coating compsn, add the more silico-aluminate of high-content (for example 45 to 60wt%), to obtain the coating composition of high solids content.
Preferably also comprise one or more strong solvents according to unsaturated polyester coating compsn of the present invention.In the present invention, term " strong solvent " thereby refer to plays diluting effect and can react with unsaturated polyester resin and forms the solvent of cross-linked network.Thereby the interpolation of this strong solvent has not only reduced the viscosity of resin, has improved the processing property of coating composition, has also improved the intensity of solidified coating.Suitable reaction solvent comprises one or more in vinyl acetate, styrenic, (methyl) esters of acrylic acid.Its example is a vinyl acetate; Vinylbenzene; Vinyl toluene; Alpha-methyl styrene; T-butyl styrene; (methyl) methyl acrylate (MMA); (methyl) ethyl propenoate; Methylacrylic acid hydroxyethyl ester (HMEA); Hydroxypropyl methacrylate (HPMA); Vinyl ether; Vinyl ester; Tetramethylene dimethacrylate (BDDMA); Dimethacrylate triglycol ester (TEGDMA); Trimethylammonium vinylformic acid trishydroxymethyl propyl ester (TMPTMA); Methylacrylic acid phenoxy ethyl (PEMA); N-vinyl pyrrolidone and N-caprolactam.Preferably, strong solvent is a vinylbenzene.
In an embodiment of the invention, the consumption of strong solvent can change in wide region.Preferably, unsaturated polyester coating compsn of the present invention can comprise with respect to the about 0.2 weight % of the gross weight of said coating composition to about 25 weight %, preferred about 2 weight % to about 20 weight %, more preferably from about 5 weight % are to the promoter component of about 15 weight %.Particularly, said unsaturated polyester coating compsn with respect to the gross weight of said compsn, comprises the strong solvent from about 7 weight %, about 8 weight % or about 9 weight % to 11 weight %, about 12 weight % or 14 weight %.
Can also further comprise the additional additives that is commonly used in the coating composition according to unsaturated polyester coating compsn of the present invention.Suitable additional additives can comprise one or more in lubricant, wetting dispersing agent, skimmer, flow agent, anti-sedimentation agent, the added solvent.The consumption of additional additives can change in wide region.Preferably, unsaturated polyester coating compsn of the present invention can comprise the additional additives to about 25 weight % with respect to the about 0.2 weight % of the gross weight of said coating composition.
Suitable lubricant can comprise Zinic stearas, calcium stearate and barium stearate or its arbitrary combination.As the instance of Zinic stearas lubricant, can use SAK-ZS-PLB available from the firm holy chemical industry in Shanghai.
In preferred implementation of the present invention, the unsaturated polyester coating compsn with respect to the gross weight of said unsaturated polyester coating compsn, comprises the lubricant of about 0.2 weight % to about 8 weight %, preferred about 0.5 weight % to about 7 weight %.Particularly, the unsaturated polyester coating compsn with respect to the gross weight of said coating composition, comprises the extremely lubricant of about 4.0 weight %, about 5.0 weight % or about 6.0 weight % of about 1.0 weight %, about 2.0 weight %, about 3.0 weight %.
Suitable wetting dispersing agent can comprise ionic wetting dispersing agent, non-ionic type wetting dispersing agent, polyfunctional group type wetting dispersing agent or its arbitrary combination.As the instance of ionic wetting dispersing agent, can use Dispers 715W available from German Tego company.As the instance of non-ionic type wetting dispersing agent, can use Dispers 740W available from German Tego company.As the instance of polyfunctional group wetting dispersing agent, can use Dispers 760W available from German Tego company.
In preferred implementation of the present invention; The unsaturated polyester coating compsn; With respect to the gross weight of said coating composition, comprise about 0.2 weight % to about 1 weight %, preferred about 0.3 weight % to about 0.8 weight %, the more preferably wetting dispersing agent of 0.4 weight % to 0.7 weight.
Suitable skimmer includes organic siloxane defoamer, oils skimmer, polyethers skimmer, polyether-modified silicone based skimmer or its arbitrary combination.As the instance of organo-siloxane defoamer, can use BYK 024 available from German BYK company.As the instance of polyethers skimmer, can use BYK-1660 available from German BYK company.As the instance of polyether-modified silicone based skimmer, can use TEGO foamex 810 available from EVONIK company.
In the preferred implementation of the present invention; The unsaturated polyester coating compsn; With respect to the gross weight of said coating composition, comprise about 0.2 weight % to about 1 weight %, preferred about 0.3 weight % to about 0.8 weight %, the more preferably skimmer of 0.4 weight % to 0.7 weight.
Suitable flow agent comprises polyacrylate(s) flow agent, organo-siloxane class flow agent, fluorine carbon flow agent or its arbitrary combination.As the instance of flow agent, can use BYK-333 available from BYK company, BYK-323, BYK-306, BYK-358N, BYK-331, BYK-310 etc.
In preferred implementation of the present invention; The unsaturated polyester coating compsn; With respect to the gross weight of said coating composition, comprise about 0.2 weight % to about 1 weight %, preferred about 0.3 weight % to about 0.8 weight %, the more preferably flow agent of 0.4 weight % to 0.7 weight.
Suitable anti-sedimentation agent comprises organically-modified boron-moisten soil, aerosil, THIXCIN wax, polyamide wax or its arbitrary combination.In concrete embodiment, anti-sedimentation agent comprise aerosil and polyamide wax the two, the weight ratio of the two can change in wide region.As the instance of aerosil anti-sedimentation agent, can use AEROSIL R972 available from goldschmidt chemical corporation.As the instance of polyamide wax anti-sedimentation agent, can use CrayvalIac Super (CR Super) available from Cray Valley company.
In preferred implementation of the present invention; The unsaturated polyester coating compsn; With respect to the gross weight of said coating composition, comprise about 0.2 weight % to about 1 weight %, preferred about 0.4 weight % to about 0.8 weight %, the more preferably anti-sedimentation agent of 0.5 weight % to 0.6 weight.
If desired, unsaturated polyester coating compsn of the present invention also comprises other suitable solvents.After this, for the ease of discussing, other solvent except that reactive solvents that mixes in the unsaturated polyester coating compsn is called as " added solvent ".In the present invention, term " added solvent " refers to be different from reactive solvents, only plays the solvent of diluting effect, and the example includes but not limited to, esters solvent, ketones solvent, aromatic solvent, or its arbitrary combination.In embodiments of the present invention, can use any esters solvent well known by persons skilled in the art (like ETHYLE ACETATE, butylacetate etc.), ketones solvent (like acetone, butanone etc.) and aromatic solvent (like toluene etc.).In preferred implementation of the present invention, can use esters solvent, ketones solvent and the aromatic solvent of arbitrary combination.The suitable proportion that those skilled in the art can allocate esters solvent, ketones solvent and aromatic solvent according to the viscosity of required coating composition is to obtain suitable coating composition viscosity.
In preferred implementation of the present invention; The unsaturated polyester coating compsn; With respect to the gross weight of said coating composition, comprise about 0.2 weight % to about 20 weight %, preferred about 5 weight % to about 20 weight %, the more preferably added solvent of 10 weight % to 20 weight.Particularly, said unsaturated polyester coating compsn with respect to the gross weight of said compsn, comprises the added solvent from about 15 weight %, about 16 weight % or about 17 weight % to 18 weight %, about 19 weight %.
In one embodiment, the unsaturated polyester coating compsn, the gross weight based on said coating composition comprises:
The unsaturated polyester resin of 35 to 75 weight %;
0.5 initiator to 3 weight %;
0.5 promotor to 2 weight %;
The silico-aluminate of 3 to 30 weight %;
0.2 reactive solvents to 25 weight %; And
0.2 to the additional additives of 25 weight %, said additional additives comprises lubricant, wetting dispersing agent, skimmer, flow agent, anti-sedimentation agent, added solvent or its arbitrary combination.
In another embodiment, the unsaturated polyester coating compsn, the gross weight based on said coating composition comprises:
The unsaturated polyester resin of 35 to 45 weight %;
0.5 initiator to 3 weight %;
0.5 promotor to 2 weight %;
The silico-aluminate of 45 to 60 weight %;
0.2 reactive solvents to 25 weight %; And
0.2 to the additional additives of 25 weight %, said additional additives comprises lubricant, wetting dispersing agent, skimmer, flow agent, anti-sedimentation agent, added solvent or its arbitrary combination.
In a preferred embodiment, the unsaturated polyester coating compsn, the gross weight based on said coating composition comprises:
The said unsaturated polyester resin of 35wt% to 65wt%;
The initiator of 0.6wt% to 2.5wt%;
The promotor of 0.5wt% to 2wt%;
3wt% to 27wt% said has silico-aluminate,
5 to 20wt% reactive solvents;
0.2 to the lubricant of 8wt%,
0.2 to the wetting dispersing agent of 1wt%,
0.2 to the skimmer of 1wt%,
0.2 flow agent to 1wt%
0.2 to the anti-sedimentation agent of 1wt% and
0.2 added solvent to 20wt%.
In more preferably embodiment, the unsaturated polyester coating compsn, the gross weight based on said coating composition comprises:
The said unsaturated polyester resin of 35wt% to 65wt%;
The initiator of 0.6wt% to 2.5wt%;
The promotor of 0.5wt% to 2wt%;
8wt% to 18wt% said has silico-aluminate,
5 to 20wt% reactive solvents;
0.2 to the lubricant of 8wt%,
0.2 to the wetting dispersing agent of 1wt%,
0.2 to the skimmer of 1wt%,
0.2 flow agent to 1wt%
0.2 to the anti-sedimentation agent of 1wt% and
0.2 added solvent to 20wt%.
In another preferred embodiment, the unsaturated polyester coating compsn, the gross weight based on said coating composition comprises:
The said unsaturated polyester resin of 35wt% to 45wt%;
The initiator of 0.6wt% to 2.5wt%;
The promotor of 0.5wt% to 2wt%;
50wt% to 60wt% said has silico-aluminate,
5 to 20wt% reactive solvents;
0.2 to the lubricant of 8wt%,
0.2 to the wetting dispersing agent of 1wt%,
0.2 to the skimmer of 1wt%,
0.2 flow agent to 1wt%
0.2 to the anti-sedimentation agent of 1wt% and
0.2 added solvent to 20wt%.
Unsaturated polyester coating preparation of compositions of the present invention can adopt any suitable blending means well known to those of ordinary skill in the art to realize.For example the unsaturated polyester coating compsn can be through processing as follows: unsaturated polyester resin, initiator, promotor, silico-aluminate filler and additional additives (if any) are added in the container, then the gained mixture is stirred.
Unsaturated polyester coating compsn according to the present invention also forms the coating with high-clarity.Preferably, the transparency of coating in standard method of test GB/T9761-1988 that is formed by unsaturated polyester coating compsn of the present invention surpasses 4.0, more preferably surpasses 4.5, and most preferably up to 5.0, wherein 5.0 transparency is best.
Unsaturated polyester coating compsn according to the present invention also forms the coating with high firmness.Preferably, the hardness of coating in standard method of test GB-T6739-2006 that is formed by unsaturated polyester coating compsn of the present invention is 2H.
Below describe the present invention in detail through embodiment.Yet the present invention is not limited to these embodiment.
Embodiment
Testing method:
Drying property:Gel time is measured according to the standard determination method of GB/T 4893.6-1987; The surface drying and the time of doing solid work are measured according to the standard determination method of GB/T 1727-1979.
Hardness (24h):Standard determination method according to GB/T 6739-2006 is measured.
Transparency:Standard determination method according to GB/T 1721-1979 is measured.
Adhesivity:Cross cut test method according to the paint film of GB/T9286-1998 is measured.
The performance of turning white after the paint film circulation:Standard determination method according to HG/T 3859-2006 is measured.
The raw material that uses in each instance is listed in as in the following table 1.
Embodiment 1-5 preparation
Table 2
| Compsn 1 | Compsn 2 | Compsn 3 | Compsn 4 | Compsn 5 | |
| ?2307S | 61.1 | ?56.9 | ?51 | ?46.9 | ?37 |
| ?MINEX?10 | 3 | ?8 | ?13 | ?18 | ?27 |
| The MEK superoxide | 1.9 | ?1.6 | ?1.4 | ?1.4 | ?1.3 |
| ?EC-6 | 1.3 | ?1.2 | ?1 | ?1 | ?0.8 |
| Vinylbenzene | 8 | ?9 | ?12.5 | ?11.5 | ?9.5 |
| Zinic stearas | 5 | ?4 | ?4 | ?4 | ?4 |
| Wetting dispersing agent | 0.3 | ?0.4 | ?0.3 | ?0.3 | ?0.3 |
| Skimmer | 0.3 | ?0.3 | ?0.3 | ?0.3 | ?0.3 |
| Flow agent | 0.2 | ?0.2 | ?0.2 | ?0.2 | ?0.2 |
| The anti-sedimentation agent total amount | 0.4 | ?0.4 | ?0.5 | ?0.6 | ?0.8 |
| The added solvent total amount | Be added into 100 | Be added into 100 | Be added into 100 | Be added into 100 | Be added into 100 |
With each component uniform mixing in the table 2, thereby form unsaturated polyester coating compsn 1-5.
Comparative Examples
The composition and the coating composition of the present invention 4 of contrast coating composition are similar, and unique difference is to adopt the conventional fillers talcum powder of 18 weight %.
Test condition and result
Under the envrionment temperature of the relative humidity of 65-85%, 30-32 ℃, be 15 seconds spraying on the Black walnut dermatotome material of polishing with working viscosity through dilution unsaturated polyester coating compsn, glue spread is 300 ± 30g/m
2Then, coating is dry, and according to the above testing method test performance.Test result is listed in as in the following table 3.
The performance of table 3. coating composition and coating thereof
Can find out that by table 3 result substitute the coating composition that the conventional fillers talcum powder obtains with the silico-aluminate of high firmness as filler, the coating that obtains not only has high firmness and high-clarity, also have the performance of turning white after the paint film circulation of obvious improvement.The inventor infers that the reason that paint film turns white in the contrast coating composition possibly cause in the coating surface gathering owing to talcum powder.Relative therewith, composite oxides filler of the present invention is at the medium-term and long-term stable existence of coating composition.
Claims (19)
1. a unsaturated polyester coating compsn comprises: unsaturated polyester resin; Initiator; And promotor, it is characterized in that said unsaturated polyester coating compsn also comprises, with respect to the gross weight of said unsaturated polyester coating compsn, the Mohs' hardness of 3wt% to 60wt% is that at least 5.0 silico-aluminate is as filler.
2. unsaturated polyester coating compsn as claimed in claim 1, wherein, said silico-aluminate comprises the silico-aluminate with frame shape structure.
3. unsaturated polyester coating compsn as claimed in claim 1, wherein, said silico-aluminate comprises potash feldspar, nepheline, white garnet, sodalite or its arbitrary combination.
4. like any described unsaturated polyester coating compsn in the claim 1 to 3, wherein, said silico-aluminate has about 5.5 to about 9 Mohs' hardness.
5. like any described unsaturated saturated polyester coating composition in the claim 1 to 3, wherein, said silico-aluminate is not moisture basically.
6. like any described unsaturated polyester coating compsn in the claim 1 to 3, wherein, said silico-aluminate has 1.45 to 1.60 specific refractory power.
7. like any described unsaturated polyester coating compsn in the claim 1 to 6, it comprises, with respect to the gross weight of said unsaturated polyester coating compsn,
The said unsaturated polyester resin of 35wt% to 95wt%;
The said initiator of 0.5wt% to 3wt%;
The said promotor of 0.5wt% to 2wt%; With
The said silico-aluminate of 3wt% to 60wt%.
8. unsaturated polyester coating compsn as claimed in claim 7 further comprises, with respect to the gross weight of said unsaturated polyester coating compsn, and the reactive solvents of 0.2wt% to 25wt%.
9. like claim 7 or 8 described unsaturated polyester coating compsns, further comprise, with respect to the gross weight of said unsaturated polyester coating compsn, the additional additives of 0.2wt% to 25wt%.
10. unsaturated polyester coating compsn as claimed in claim 9, wherein, said unsaturated polyester resin compositions, the gross weight based on said unsaturated polyester coating compsn comprises:
The said unsaturated polyester resin of 35wt% to 65wt%;
The said initiator of 0.6wt% to 2.5wt%;
The said promotor of 0.5wt% to 2wt%;
The said silico-aluminate of 3wt% to 27wt%,
5 to 20wt% said reactive solvents;
0.2 to the said lubricant of 8wt%,
0.2 to the said wetting dispersing agent of 1wt%,
0.2 to the said skimmer of 1wt%,
0.2 said flow agent to 1wt%
0.2 to the said anti-sedimentation agent of 1wt% and
0.2 said solvent to 20wt%.
11. unsaturated polyester coating compsn as claimed in claim 9, wherein, said unsaturated polyester resin compositions, the gross weight based on said unsaturated polyester coating compsn comprises:
The said unsaturated polyester resin of 35wt% to 65wt%;
The said initiator of 0.6wt% to 2.5wt%;
The said promotor of 0.5wt% to 2wt%;
The said silico-aluminate of 8wt% to 18wt%,
5 to 20wt% said reactive solvents;
0.2 to the said lubricant of 8wt%,
0.2 to the said wetting dispersing agent of 1wt%,
0.2 to the said skimmer of 1wt%,
0.2 said flow agent to 1wt%
0.2 to the said anti-sedimentation agent of 1wt% and
0.2 said solvent to 20wt%.
12. unsaturated polyester coating compsn as claimed in claim 9, wherein, said unsaturated polyester resin compositions, the gross weight based on said unsaturated polyester coating compsn comprises:
The said unsaturated polyester resin of 35wt% to 45wt%;
The said initiator of 0.6wt% to 2.5wt%;
The said promotor of 0.5wt% to 2wt%;
The said silico-aluminate of 50wt% to 60wt%;
5 to 20wt% said reactive solvents;
0.2 to the said lubricant of 8wt%,
0.2 to the said wetting dispersing agent of 1wt%,
0.2 to the said skimmer of 1wt%,
0.2 said flow agent to 1wt%
0.2 to the said anti-sedimentation agent of 1wt% and
0.2 said solvent to 20wt%.
13. like any described unsaturated polyester coating compsn in the claim 1 to 12, wherein, said initiator comprises superoxide.
14. unsaturated polyester coating compsn as claimed in claim 13, wherein, said superoxide comprises one or more in peroxide two carbonic ethers, peroxy esters, diacyl peroxide and the dialkyl peroxide.
15. like any described unsaturated polyester coating compsn in the claim 1 to 12, wherein, said promotor comprises one or more in cobalt salt, tertiary amine and the mercaptan.
16. unsaturated polyester coating compsn as claimed in claim 15, wherein, said promotor comprises one or more in naphthoic acid cobalt, cobalt octoate and the cobalt iso-octoate.
17. like any described unsaturated polyester coating compsn in the claim 8 to 12, wherein, said reactive solvents comprises one or more in vinyl acetate, styrenic and (methyl) esters of acrylic acid.
18. one kind by any coating that described unsaturated polyester coating compsn obtains in the claim 1 to 17.
19. measuring according to GB/T9761-1988, coating as claimed in claim 18, the transparency of said coating surpass 4.0.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105111902A (en) * | 2015-10-09 | 2015-12-02 | 广东顺德漆强化工科技有限公司 | Wax-free piano varnish and preparation method |
| CN106800870A (en) * | 2017-01-12 | 2017-06-06 | 芜湖航天特种电缆厂股份有限公司 | Cable insulation coating compositions and preparation method thereof |
| CN109971265A (en) * | 2019-04-23 | 2019-07-05 | 广东华润涂料有限公司 | Suitable for preparing the water-based latex of coil coating composition |
| CN110172294A (en) * | 2019-05-28 | 2019-08-27 | 广西华砻树脂有限公司 | A kind of unsaturated polyester resin for coating and preparation method thereof |
| CN111808509A (en) * | 2020-07-22 | 2020-10-23 | 成都巴德士涂料有限公司 | Thick coating type PE clear primer |
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| CN105111902A (en) * | 2015-10-09 | 2015-12-02 | 广东顺德漆强化工科技有限公司 | Wax-free piano varnish and preparation method |
| CN106800870A (en) * | 2017-01-12 | 2017-06-06 | 芜湖航天特种电缆厂股份有限公司 | Cable insulation coating compositions and preparation method thereof |
| CN109971265A (en) * | 2019-04-23 | 2019-07-05 | 广东华润涂料有限公司 | Suitable for preparing the water-based latex of coil coating composition |
| CN110172294A (en) * | 2019-05-28 | 2019-08-27 | 广西华砻树脂有限公司 | A kind of unsaturated polyester resin for coating and preparation method thereof |
| CN111808509A (en) * | 2020-07-22 | 2020-10-23 | 成都巴德士涂料有限公司 | Thick coating type PE clear primer |
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|---|---|
| CN102796442B (en) | 2017-04-19 |
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