CN104004169A - Modified alkyd resin, preparing method thereof and double-component matte top clearing paint - Google Patents
Modified alkyd resin, preparing method thereof and double-component matte top clearing paint Download PDFInfo
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Abstract
The invention provides modified alkyd resin. Dearomatization aromatic solvent oil is used as water-carrying agents, the modified alkyd resin is non-benzene matter, a process is narrow, and arene solvents are hardly contained. Due to the fact that a single solvent is used, the control point viscosity in a product can be easily controlled through a format viscosity index, and accordingly the quality of the obtained modified alkyd resin is controlled. The modified alkyd resin has stable quality, and performance of different batches is stable. The modified alkyd resin does not contain the arene solvents, and good environment-protecting performance is achieved. The invention further provides double-component matte top clearing paint containing the modified alkyd resin. The modified alkyd resin has good performance, so that the double-component matte top clearing paint has environment-protecting performance, and a paint film has great physical property.
Description
Technical field
The present invention relates to technical field of coatings, relate in particular to a kind of modified alkyd resin, its preparation method and two component matte varnish.
Background technology
Synolac is generally the oily modified polyester resin that a class is formed by polyvalent alcohol, diprotic acid and lipid acid or grease condensation polymerization.Due to Synolac good film-forming property, the rete after film-forming has gloss, toughness and stronger sticking power, and the feature such as good wear resistance, weathering resistance and insulativity, and it is mainly applied in paint field, can be made into finish paint, priming paint and putty etc.
The synthetic overwhelming majority at present of Synolac is used solvent method.Be specially, in alkyd reaction mixture, introduce approximately 1.5～4.5% solvent as reflux dewatering solvent.The object that adopts solvent method is that the small molecular by product water that Synolac esterifying polycondensation building-up process is generated can be taken out of fast from reactant, thereby order reaction is carried out towards the direction that is conducive to Synolac generation.Prior art often be take benzene kind solvent as reflux solvent, particularly dimethylbenzene is as reflux solvent, and dimethylbenzene can form azeotrope with water, and azeotrope water content is 37.5%, water molecules is taken out of from reaction system, so dimethylbenzene is widely used in reflux dewatering solvent in Synolac is synthetic.
Development along with coatings industry, the day by day intensification of people to energy-saving and environmental protection, health concept, " 5E " (being economic Economy, efficiency Efficiency, ecological Ecology, energy Energy, multipotency Enabling) type environmental protection coating material becomes the trend of development.Yet the benzene kind solvent that the disclosed In Alkyd Resin Production of prior art adopts can enter human body by breathing, skin and digestive tube, affect the health of human body, this does not obviously meet the requirement of 5E environmental protection coating material, therefore needs a kind of non-aromatics kind solvent to substitute conventional aromatic hydrocarbons reflux dewatering agent.
Application number is that the Chinese patent of 200410039168.X discloses a kind of Benzeneless alkyd resin for environmental protection decorative paint and preparation method thereof, adopts 200# industrial naptha and methylethylketone to using ratio 7～8:1～2 and produces Synolac as reflux solvent.In its open source information, mention, the reflux solvent that this ratio obtains and dimethylbenzene boiling range, boiling point are close, by equivalent substitution dimethylbenzene as reflux solvent, the consumption of this mixing reflux solvent be controlled at the total amount that feeds intake 3.5～6.5 between, at 150 ℃, have backflow.Methylethylketone, is also methyl ethyl ketone, also referred to as 2-butanone, can at 73.4 ℃, form azeotrope with water, and phegma, after condenser is cooling, is flowed in water trap by ingress pipe.Because methylethylketone under normal temperature dissolves in 4 parts of water, standing by the short period of time, methylethylketone can not carry out successfully with water separated in water trap, result causes the methylethylketone in water trap to enter together with water in esterification water collector, thereby cause the progressively disappearance of reflux solvent methylethylketone in formula, there is deviation in component design, in product, control point is wayward, causes the quality of Synolac unstable.
Summary of the invention
The object of the present invention is to provide a kind of modified alkyd resin, its preparation method and two component matte varnish, modified alkyd resin stable performance provided by the invention, environmental protection, thus make the two component matte varnish paint films that comprise described modified alkyd resin there is higher performance.
The invention provides a kind of modified alkyd resin, by alkyd mixture reaction, made, described alcohol acid mixture comprises following component:
The behenic acid of 190～210 weight parts;
The Viscotrol C of 45～55 weight parts;
The ethylene glycol of 50～55 weight parts;
The phthalic anhydride of 240～255 weight parts;
The cis-butenedioic anhydride of 2～3 weight parts;
The hexanodioic acid of 5～15 weight parts;
The tetramethylolmethane of 130～150 weight parts;
The non-benzene class band aqua of 15～30 weight parts, described non-benzene class band aqua is de-aromatic solvent naphtha;
The oxidation inhibitor of losing lustre of 1～2.5 weight part;
The letdown solvent dun of 250～270 weight parts, the compound of described letdown solvent dun aromatic free class;
The antiaging agent of 0.5～1.5 weight part.
Preferably, described non-benzene class band aqua is paraffinic solvent oil.
Preferably, described letdown solvent dun is n-butyl acetate.
The preparation method who the invention provides modified alkyd resin described in technique scheme, comprises the following steps:
A) under protection of inert gas, behenic acid, Viscotrol C, ethylene glycol, phthalic anhydride, cis-butenedioic anhydride, hexanodioic acid, tetramethylolmethane, non-benzene class band aqua and the oxidation inhibitor of losing lustre are mixed, reaction obtains crude product;
B) described crude product is mixed with letdown solvent dun and antiaging agent, obtain modified alkyd resin.
Preferably, described step a) mix after, the mixture obtaining is warming up to 160 ℃～185 ℃, insulation refluxes, and obtains head product;
Described head product is warming up to 200 ℃～220 ℃, and reaction obtains crude product.
Preferably, the time that described insulation refluxes is 1 hour～2 hours.
Preferably, the time that is warming up to 200 ℃～220 ℃ described in is 3 hours～5 hours.
Preferably, described in be warming up to after 200 ℃～220 ℃, when insulation reaction to acid number≤18mgKOH/g, the viscosity of material is 13 seconds/25 ℃～17 seconds/25 ℃, cooling obtains crude product.
Preferably, the temperature of described cooling is 180 ℃～220 ℃.
The invention provides a kind of pair of component matte varnish, comprise following component:
78～82 weight part Synolac, described Synolac is the modified alkyd resin that described in modified alkyd resin or technique scheme, preparation method makes described in technique scheme;
The dispersion agent of 0.5～1.5 weight part;
The polyethylene wax powder of 0.3～0.7 weight part;
The flatting silica of 3.5～4.5 weight parts;
The polyoxygenated amide waxe anti-settling agent of 1.5～2.5 weight parts;
The poly-methyl alkyl siloxane flow agent of the aralkyl modification of 0.15～0.25 weight part;
The 1-Methoxy-2-propyl acetate of 3.0～4.0 weight parts;
The non-silicon defoamer of 0.05～0.15 weight part;
The n-butyl acetate of 7.5～8.5 weight parts.
The invention provides a kind of modified alkyd resin, by alkyd mixture reaction, made, described alcohol acid mixture comprises following component: the behenic acid of 190～210 weight parts; The Viscotrol C of 45～55 weight parts; The ethylene glycol of 50～55 weight parts; The phthalic anhydride of 240～255 weight parts; The cis-butenedioic anhydride of 2～3 weight parts; The hexanodioic acid of 5～15 weight parts; The tetramethylolmethane of 130～150 weight parts; The non-benzene class band aqua of 15～30 weight parts, described non-benzene class band aqua is de-aromatic solvent naphtha; The oxidation inhibitor of losing lustre of 1～2.5 weight part; The letdown solvent dun of 250～270 weight parts, the compound of described letdown solvent dun aromatic free class; The antiaging agent of 0.5～1.5 weight part.Modified alkyd resin provided by the invention take take off aromatic solvent naphtha as band aqua, it is non-benzene class material, its flow process is narrower, contain hardly aromatic hydrocarbon solvent, owing to using single solvent, more easily by form viscosity index, control control point viscosity in product, thereby the quality of controlling the modified alkyd resin obtaining, modified alkyd resin provided by the invention has stable quality, and stable performance between different batches.And, in modified alkyd resin provided by the invention, do not contain aromatic hydrocarbon solvent, there is better environmental-protecting performance.
The present invention also provides a kind of two component matte varnish that comprise described modified alkyd resin, because modified alkyd resin has good performance, thereby makes the paint film of two component matte varnish also have environmental-protecting performance, and paint film also has excellent physicals.
Embodiment
The invention provides a kind of modified alkyd resin, by alkyd mixture reaction, made, described alcohol acid mixture comprises following component:
The behenic acid of 190～210 weight parts;
The Viscotrol C of 45～55 weight parts;
The ethylene glycol of 50～55 weight parts;
The phthalic anhydride of 240～255 weight parts;
The cis-butenedioic anhydride of 2～3 weight parts;
The hexanodioic acid of 5～15 weight parts;
The tetramethylolmethane of 130～150 weight parts;
The non-benzene class band aqua of 15～30 weight parts, described non-benzene class band aqua is de-aromatic solvent naphtha;
The oxidation inhibitor of losing lustre of 1～2.5 weight part;
The letdown solvent dun of 250～270 weight parts, the compound of described letdown solvent dun aromatic free class;
The antiaging agent of 0.5～1.5 weight part.
Modified alkyd resin provided by the invention take take off aromatic solvent naphtha as band aqua, it is non-benzene class material, its flow process is narrower, contain hardly aromatic hydrocarbon solvent, owing to using single solvent, more easily by form viscosity index, control control point viscosity in product, thereby the quality of controlling the modified alkyd resin obtaining, modified alkyd resin provided by the invention has stable quality, and stable performance between different batches.And, in modified alkyd resin provided by the invention, do not contain fragrant kind solvent, there is better environmental-protecting performance.
In the present invention, described alcohol acid mixture comprises 190～210 behenic acid, is preferably 200～210 weight parts, more preferably 200～205 weight parts.In the present invention, described behenic acid is mixed fatty acid, mainly comprises 18 carbon monoenoic acid and octadecadienoic acids, and described 18 carbon monoenoic acids and the total weight content of octadecadienoic acid are 75%～85%; Described behenic acid preferably also comprises Palmitic acid and punicic acid, and mass content≤9% of described Palmitic acid in described behenic acid, is preferably 5%～9%, and mass content≤8% of punicic acid in behenic acid, is preferably 5%～8%.Behenic acid is because it has longer segment, therefore bring modified alkyd resin molecule with splendid snappiness, with behenic acid, compare with lauric acid simultaneously, with the modified alkyd resin of behenic acid modification, there is better Extinction Characteristic and bring paint film with better transparency.The present invention does not have special restriction to the source of described behenic acid, adopts the commercial goods of above-mentioned behenic acid well known to those skilled in the art.
In the present invention, described alcohol acid mixture comprises the phthalic anhydride of 240～255 weight parts, is preferably 245～250 weight parts.In the present invention, described phthalic anhydride has another name called Tetra hydro Phthalic anhydride, as one of organic acid raw material of synthesis modification Synolac.
In the present invention, described alcohol acid mixture comprises the cis-butenedioic anhydride of 2～3 weight parts, and described cis-butenedioic anhydride has another name called MALEIC ANHYDRIDE.In the present invention, adding of described cis-butenedioic anhydride, can improve the hardness of paint film, and the viscosity in can fast lifting resin building-up process.
In the present invention, described alcohol acid mixture comprises the hexanodioic acid of 5～15 weight parts, is preferably 10～15 weight parts.In the present invention, described hexanodioic acid can improve the snappiness of modified alkyd resin.
In the present invention, described behenic acid, phthalic anhydride, cis-butenedioic anhydride and hexanodioic acid are as the organic acid raw material of synthesis modification Synolac, and described organic acid and polyol reaction, generate modified alkyd resin.
In the present invention, described alcohol acid mixture comprises the Viscotrol C of 45～55 weight parts, is preferably 50～55 weight parts.In the present invention, described Viscotrol C is refined caster oil.Viscotrol C and described behenic acid compound use, carry out oily modification to modified alkyd resin.In the present invention, in described Viscotrol C structure, contain hydroxyl, in described Viscotrol C, the functionality of hydroxyl is preferably 2.7.The present invention does not have special restriction to the source of described Viscotrol C, adopts the commercial goods of above-mentioned Viscotrol C well known to those skilled in the art.
In the present invention, described alcohol acid mixture comprises the tetramethylolmethane of 130～150 weight parts, is preferably 135～145 weight parts.In the present invention, the functionality of described tetramethylolmethane is 4, its a kind of as in modified alkyd resin reaction raw materials polyvalent alcohol.Because tetramethylolmethane functionality is larger, the synthetic modified alkyd resin obtaining is than glyptal fast drying of the same type, and gloss, hardness, gloss retention and alkali resistance are also better.
In the present invention, described alcohol acid mixture comprises the ethylene glycol of 50～55 weight parts, is preferably 52～54 weight parts.In the present invention, described ethylene glycol and tetramethylolmethane compound use, can regulate functionality, make polymerization steadily, avoid gel, and ethylene glycol and tetramethylolmethane compound use, can reduce costs.
In the present invention, described ethylene glycol, tetramethylolmethane and Viscotrol C be as the polyvalent alcohol raw material of synthesis modification Synolac, and the organic acid reaction described in described polyvalent alcohol and technique scheme, generates modified alkyd resin.
In the present invention, described alcohol acid mixture comprises the non-benzene class band aqua of 15～30 weight parts, and described non-benzene class band aqua, for de-aromatic solvent naphtha, is preferably 20～25 weight parts.In the present invention, describedly with aqua, can reflux and slough the micromolecular water in esterification process, the reaction of modified alkyd resin is carried out to esterifying polycondensation the Direction of Reaction.And, in the scope of above-mentioned parts by weight, described the carrying out that can further promote reaction with aqua.In the present invention, described non-benzene class band aqua is paraffinic solvent oil, the de-aromatic hydrocarbon solvent that the concrete trade mark that can produce for Exxon Mobil Corporation is Exxsol-D40.In the present invention, the initial boiling point of the de-aromatic hydrocarbon solvent of described Exxsol-D40 is that 167 ℃, full boiling point are that 193 ℃, flash-point are 47 ℃, bromine number (100g) < 5mg, aromaticity content < 0.1wt%; Described aromaticity content is specially 0.08wt%.
In the present invention, described alcohol acid mixture comprises the letdown solvent dun of 250～270 weight parts, is preferably 255～265 weight parts.In the present invention, the resin chemical solution that described letdown solvent dun generates esterifying polycondensation reaction, obtains modified alkyd resin.In the present invention, described letdown solvent dun aromatic free compounds, is preferably n-butyl acetate.The present invention preferably be take n-butyl acetate as letdown solvent dun, easy and simple to handle, and the modified alkyd resin obtaining has good quality.
In the present invention, described alcohol acid mixture comprises the oxidation inhibitor of losing lustre of 1.0～2.5 weight parts, is preferably 1.5～2.0 weight parts.In the present invention, described in lose lustre oxidation inhibitor in the building-up process of modified alkyd resin, play the antioxidant effect of losing lustre, thereby improved appearance property and the application performance of modified alkyd resin.In the present invention, the oxidation inhibitor of losing lustre described in is preferably Hypophosporous Acid, 50 and/or phosphorous acid esters material, more preferably Hypophosporous Acid, 50 or triphenyl phosphite.The present invention does not have special restriction to the source of the described oxidation inhibitor of losing lustre, and adopts the commercial goods of the above-mentioned oxidation inhibitor of losing lustre well known to those skilled in the art, the oxidation inhibitor SH-1 of losing lustre as adopted, lose lustre oxidation inhibitor 3032 and the oxidation inhibitor M070 of losing lustre.
In the present invention, described alcohol acid mixture comprises the antiaging agent of 0.5～1.5 weight part, and in embodiments of the present invention, described ageing-resistant parts by weight can be specially 0.5 weight part, 1.0 weight parts or 1.5 weight parts.The present invention does not have special restriction to described ageing-resistant kind and source, adopt the antiaging agent for Synolac well known to those skilled in the art, can adopt ageing-resistant commercial goods, as can 2,6-di-t-butyl-4-cresols, the antiaging agent that the concrete model that adopts German Lanxess Corporation to produce is BHT-264.
The preparation method who the invention provides modified alkyd resin described in technique scheme, comprises the following steps:
A) under protection of inert gas, behenic acid, Viscotrol C, ethylene glycol, phthalic anhydride, cis-butenedioic anhydride, hexanodioic acid, tetramethylolmethane, non-benzene class band aqua and the oxidation inhibitor of losing lustre are mixed, reaction obtains crude product;
B) described crude product is mixed with letdown solvent dun and antiaging agent, obtain modified alkyd resin.
The present invention be take the alcohol acid mixture that comprises polyvalent alcohol, organic acid and auxiliary agent and is reacted as raw material, generate Synolac, the Synolac obtaining is applied to, in two component matte varnish, make the two component matte varnish that obtain have good performance, and possess environmental protection characteristic.
The present invention, under protection of inert gas, mixes behenic acid, Viscotrol C, ethylene glycol, phthalic anhydride, cis-butenedioic anhydride, hexanodioic acid, tetramethylolmethane, non-benzene class band aqua and the oxidation inhibitor of losing lustre, and reaction obtains crude product.The present invention does not have special restriction to preparing the reaction vessel of modified alkyd resin, and industrial production adopts reactor well known to those skilled in the art; Preferably first behenic acid, ethylene glycol, Viscotrol C, non-benzene class band aqua and the oxidation inhibitor of losing lustre are dropped in reactor, then in reactor, drop into phthalic anhydride, cis-butenedioic anhydride, hexanodioic acid and tetramethylolmethane by the special-purpose dog-house of powder, react, obtain crude product.The present invention preferably mixes, reacts under the condition stirring, and the present invention does not have special restriction to the technical scheme of described stirring, adopts the technical scheme of stirring well known to those skilled in the art.
The present invention does not have special restriction to the kind of described rare gas element; adopt the rare gas element as shielding gas well known to those skilled in the art; as being nitrogen or carbonic acid gas, can avoid the generation of side reaction, also help the low molecular weight volatile things such as water.The present invention preferably passes into rare gas element in reactor, makes to be full of in reactor rare gas element, then drop into above-mentioned material in reactor.Take volume as 3m
3reactor be example, described in pass into rare gas element time be preferably 3 minutes～8 minutes, more preferably 5 minutes～6 minutes; The described flow that passes into rare gas element is preferably 2m
3/ h～5m
3/ h, more preferably 3m
3/ h～4m
3/ h.
The present invention is preferably warming up to the mixture obtaining 160 ℃～185 ℃ after behenic acid, Viscotrol C, ethylene glycol, phthalic anhydride, cis-butenedioic anhydride, hexanodioic acid, tetramethylolmethane, non-benzene class band aqua and the oxidation inhibitor of losing lustre are mixed, and insulation refluxes, and obtains head product; Described head product is warming up to 200 ℃～220 ℃ again, reaction obtains crude product.In the present invention, the time that described insulation refluxes is preferably 1 hour～and 2 hours; The reflux ratio of described backflow is preferably 1.5%～3.5%, and more preferably 2.0%～3.0%; The described time that is warming up to 200 ℃～220 ℃ is preferably 3 hours～and 5 hours, can be specially 3 hours, 4 hours or 5 hours; Reflux ratio % is that reflux solvent (the present invention refers in particular to non-benzene class band aqua) quality accounts for the percentage composition of above mentioned behenic acid, Viscotrol C, ethylene glycol, phthalic anhydride, cis-butenedioic anhydride, hexanodioic acid, tetramethylolmethane, non-benzene class band aqua and the total input amount of oxidation inhibitor that loses lustre.
In the present invention, be warming up to after 200 ℃～220 ℃, when preferably insulation reaction to acid number≤18mgKOH/g, the viscosity of material is 13 seconds/25 ℃～17 seconds/25 ℃, cooling obtains crude product; When more preferably insulation reaction to acid number≤15mgKOH/g, the viscosity of material is 14 seconds/25 ℃～15 seconds/25 ℃, cooling obtains crude product.In the present invention, the temperature of described cooling is preferably 180 ℃～200 ℃, more preferably 185 ℃～195 ℃.In the present invention, described viscosity is the viscosity that the test of form pipe viscometer obtains, and concrete test process is: the solid resin that reaction is obtained and dimethylbenzene are mixed with solution and carry out viscosity test; In the present invention, the mass ratio of described solid resin and dimethylbenzene is 1:0.85, the mass ratio that is solid resin is about 53%, here it should be noted that, adopt dimethylbenzene to carry out middle control viscosity controller as the viscosimetric solvent of inspection, because its component is single, to control viscosity in surveying more accurate, this does not conflict with not adopting aromatic hydrocarbon solvent in modified alkyd resin actual production process.
Obtain after crude product, the present invention mixes described crude product with letdown solvent dun and antiaging agent, obtain modified alkyd resin.The present invention preferably mixes described crude product in thinning vessel with letdown solvent dun and antiaging agent.In the present invention, described crude product and letdown solvent dun and ageing-resistant mixing also preferably carry out under the protective atmosphere of rare gas element, and the kind of described rare gas element is consistent with the kind of rare gas element described in technique scheme, does not repeat them here.Take volume as 5m
3thinning vessel be example, described in pass into rare gas element flow be preferably 3m
3/ h～9m
3/ h, more preferably 4m
3/ h～8m
3/ h.
In the present invention, concrete, preferably first open the water coolant of the stirring of described thinning vessel, the cold oil of inner coil pipe and outer adjoining pipe, more described crude product, letdown solvent dun and antiaging agent are dropped in thinning vessel.When the present invention adopts letdown solvent dun to carry out latting drown to crude product, can be by the disposable direct input thinning vessel of whole letdown solvent duns, also can first part letdown solvent dun be dropped in thinning vessel, then will after reactor described in remainder letdown solvent dun cleaning technique scheme, drop into again in described thinning vessel.The present invention preferably first drops into the letdown solvent dun of antiaging agent and 50wt% in thinning vessel, the crude product that above-mentioned reaction is obtained turns still to thinning vessel, after still to be turned, will after the letdown solvent dun cleaning reaction still of residue 50wt%, put in thinning vessel, carry out latting drown, obtain modified alkyd resin.In the present invention, more than the time of described stirring is preferably 30min.Under the effect of cold oil and water coolant, material is cooled to after 100 ℃～130 ℃, is that the filter bag of 20 μ m filters the material obtaining by specification, obtains modified alkyd resin.
Obtain after modified alkyd resin, the present invention detects its color and luster, viscosity, acid number and solid content, result demonstration, and modified alkyd resin provided by the invention is yellow transparent thick liquid; While adopting the test of Fe-Co method, color and luster≤3; At 25 ℃, viscosity is 4500mPas～12000mPas; Acid number≤12.6mgKOH/g; Solid content (being called for short solid containing) is (70 ± 1.5) %.Show the functional of modified alkyd resin that the present invention makes, can form filming of different qualities, have very excellent service performance, Application Areas is very extensive.
In addition, the present invention adopts de-aromatic hydrocarbon solvent as reflux solvent synthesis modification Synolac, and method is simple to operate, and between batch, product performance are stable.
The present invention, by form viscosity and the acid number of testing product, determines in resin reaction and controls a little, and be as the criterion with viscosity measurements.In reactant, have reflux solvent, the design of different ingredients reflux ratio is different, therefore, in order better to control a little in controlling, the reflux solvent in reactant also will be counted, and so just requires in whole reaction process, and it is stable that the reflux ratio of reaction mixture keeps.If reflux ratio is 2.5%, a Synolac is synthetic, 60% admittedly containing time in to control viscosity be 25S.Its detection method is specially:
Get reactant 12.3g (wherein 0.3g is contained reflux solvent), with 7.7g solvent latting drown, after stirring with glass stick, pour in Biao Zhungeshi pipe, put into 25 ℃ of waters bath with thermostatic control and detect after 5 minutes.
The present invention also provides a kind of pair of component matte varnish, comprises following component:
78～82 weight part Synolac, described Synolac is the modified alkyd resin that described in modified alkyd resin or technique scheme, preparation method makes described in technique scheme;
The dispersion agent of 0.5～1.5 weight part;
The polyethylene wax powder of 0.3～0.7 weight part;
The flatting silica of 3.5～4.5 weight parts;
The polyoxygenated amide waxe anti-settling agent of 1.5～2.5 weight parts;
The poly-methyl alkyl siloxane flow agent of the aralkyl modification of 0.15～0.25 weight part;
The 1-Methoxy-2-propyl acetate of 3.0～4.0 weight parts;
The non-silicon defoamer of 0.05～0.15 weight part;
The n-butyl acetate of 7.5～8.5 weight parts.
Provided by the invention pair of component matte varnish comprises 78～82 weight part Synolac, described Synolac is the modified alkyd resin that described in modified alkyd resin or technique scheme, preparation method makes described in technique scheme, more preferably 80～82 weight parts.In the present invention, described modified alkyd resin makes the paint film obtaining have excellent performance at aspects such as gloss, hardness, shock resistance, sticking power and clarities, is beneficial to application.
Provided by the invention pair of component matte varnish comprises the dispersion agent of 0.5～1.5 weight part, concrete, can be 0.5 weight part, 1.0 weight parts or 1.5 weight parts.In the present invention, described dispersion agent can be scattered in flatting silica in described modified alkyd resin better.In the present invention, described dispersion agent is preferably high score subclass dispersion agent, the macromolecule dispersing agent that the concrete model that can produce for EFKA is EFKA-4010.
Provided by the invention pair of component matte varnish comprises the polyethylene wax powder of 0.3～0.7 weight part, is preferably 0.4～0.6 weight part.In the present invention, described polyethylene wax powder can improve the feel of paint film, to paint film, brings splendid feel.The present invention does not have special restriction to the source of described polyethylene wax powder, adopts polyethylene wax powder well known to those skilled in the art, as adopted the 1400SF polyethylene wax powder of Lu Borun.
Provided by the invention pair of component matte varnish comprises the flatting silica of 3.5～4.5 weight parts, is preferably 3.8～4.2 weight parts.In the present invention, described flatting silica can bring half mute effect to paint film.The present invention does not have special restriction to the source of described flatting silica, adopts flatting silica well known to those skilled in the art, as adopted the ED-30 flatting silica of Grace.
Provided by the invention pair of component matte varnish comprises the polyoxygenated amide waxe anti-settling agent of 1.5～2.5 weight parts, can be specially 1.5 weight parts, 2.0 weight parts or 2.5 weight parts.In the present invention, described polyoxygenated amide waxe anti-settling agent can, after effectively helping paint to make, keep homogeneous state well.The present invention does not have special restriction to the source of described polyoxygenated amide waxe anti-settling agent, adopts the commercial goods of polyoxygenated amide waxe anti-settling agent well known to those skilled in the art, as adopted the HX-8820 anti-settling agent of China's auxiliary agent.
Provided by the invention pair of component matte varnish comprises the poly-methyl alkyl siloxane flow agent of the aralkyl modification of 0.15～0.25 weight part, can be specially 0.15 weight part, 0.20 weight part or 0.25 weight part.In the present invention, the poly-methyl alkyl siloxane flow agent of described aralkyl modification can impel coating in the process of drying and forming-film, form smooth, smooth, film uniformly.The present invention does not have special restriction to the poly-methyl alkyl siloxane flow agent source of described aralkyl modification, adopt the commercial goods of the poly-methyl alkyl siloxane flow agent of aralkyl modification well known to those skilled in the art, as adopted the HX-3130 flow agent of China's auxiliary agent.
Provided by the invention pair of component matte varnish comprises the 1-Methoxy-2-propyl acetate of 3.0～4.0 weight parts, can be specially 3.0 weight parts, 3.5 weight parts or 4.0 weight parts.In the present invention, described 1-Methoxy-2-propyl acetate has diluting effect to coating.
Provided by the invention pair of component matte varnish comprises the non-silicon defoamer of 0.05～0.15 weight part, can be specially 0.05 weight part, 0.10 weight part or 0.15 weight part.In the present invention, described non-silicon defoamer can be eliminated the harmful foam in coating production process.The present invention does not have special restriction to the source of described non-silicon defoamer, adopts the commercial goods of non-silicon defoamer well known to those skilled in the art, as adopted the HX-2500 defoamer of China's auxiliary agent.
Provided by the invention pair of component matte varnish comprises the n-butyl acetate of 7.5～8.5 weight parts, can be specially 7.5 weight parts, 8.0 weight parts or 8.5 weight parts.In the present invention, described n-butyl acetate has diluting effect to coating.
In the present invention, described in technique scheme, the preparation method of two component matte varnish preferably includes following steps:
Synolac and dispersion agent are carried out to the first mixing under the rotating speed of 300 revs/min～500 revs/min, obtain the first mixture;
Described the first mixture is carried out to second with polyethylene wax powder and flatting silica under the rotating speed of 1600 revs/min～2000 revs/min and mix, obtain the second mixture;
Poly-methyl alkyl siloxane flow agent, 1-Methoxy-2-propyl acetate and the n-butyl acetate of described the second mixture and polyoxygenated amide waxe anti-settling agent, non-silicon defoamer, aralkyl modification are carried out to the 3rd under 300 revs/min～500/ rotating speed turning minute and mix, obtain two component matte varnish.
The present invention carries out the first mixing by Synolac described in technique scheme and dispersion agent under the rotating speed of 300 revs/min～500 revs/min, obtains the first mixture.In the present invention, the described first rotating speed mixing is preferably 350 revs/min～450 revs/min; The described first time of mixing was preferably 5 minutes～and 10 minutes, more preferably 7 minutes～8 minutes;
Obtain after the first mixture, the present invention carries out second with polyethylene wax powder and flatting silica by described the first mixture and mixes under the rotating speed of 1600 revs/min～2000 revs/min, obtains the second mixture.In the present invention, the described second rotating speed mixing is preferably 1700 revs/min～1900 revs/min, more preferably 1750 revs/min～1850 revs/min; The described second time of mixing was preferably 15 minutes～and 20 minutes, more preferably 17 minutes～18 minutes;
Obtain after the second mixture, the present invention carries out the 3rd by poly-methyl alkyl siloxane flow agent, 1-Methoxy-2-propyl acetate and the n-butyl acetate of described the second mixture and polyoxygenated amide waxe anti-settling agent, non-silicon defoamer, aralkyl modification and mixes under 300 revs/min～500/ rotating speed turning minute, obtains two component matte varnish.In the present invention, the described the 3rd rotating speed mixing is preferably 350 revs/min～450 revs/min; The described the 3rd time of mixing was preferably 5 minutes～and 10 minutes, more preferably 7 minutes～8 minutes.
The using method of two component matte varnish that in the present invention, described in technique scheme, described in two component matte varnish or technique scheme, preparation method makes preferably includes following steps:
By two component matte varnish and solidifying agent and mixing diluents, after standing froth breaking, be coated on the woodenware sheet material that scribbles priming paint.In the present invention, the mass ratio of described pair of component matte varnish, solidifying agent and thinner is preferably 1:(0.4～0.6): (0.4～0.6), more preferably 1:0.5:0.5.The present invention does not have special demonstration to described solidifying agent and thinner, adopts aromatic free kind solvent well known to those skilled in the art, as solidifying agent can adopt after n-butyl acetate latting drown solid containing being L-75 solidifying agent 40%, Bayer A.G; Thinner comprises the DBE of the n-butyl acetate of 75 weight parts, the 1-Methoxy-2-propyl acetate of 22 weight parts and 3 weight parts, the product of described DBEWei du pont company, it is the mixture of three kinds of diprotic acid methyl esters, the dimethyl adipate that comprises the dimethyl succinate of about 16wt%, the Methyl glutarate of about 64wt% and about 20wt%, flow process is about 196 ℃～225 ℃.
In the present invention, the described standing time is preferably 5min～15min, more preferably 8min～12min.
The present invention does not have special restriction to the method applying, and adopts the technical scheme of coating matte varnish well known to those skilled in the art, as adopted gas spray gun that the paint liquid obtaining is sprayed on the woodenware sheet material that scribbles priming paint.The present invention does not have special restriction to the kind of priming paint, adopts priming paint well known to those skilled in the art.The present invention does not have special restriction to the thickness of described coating, and those skilled in the art can as required, apply the paint liquid of suitable thickness.
The invention provides a kind of modified alkyd resin, by alkyd mixture reaction, made, described alcohol acid mixture comprises following component: the behenic acid of 190～210 weight parts; The Viscotrol C of 45～55 weight parts; The ethylene glycol of 50～55 weight parts; The phthalic anhydride of 240～255 weight parts; The cis-butenedioic anhydride of 2～3 weight parts; The hexanodioic acid of 5～15 weight parts; The tetramethylolmethane of 130～150 weight parts; The non-benzene class band aqua of 15～30 weight parts, described non-benzene class band aqua is de-aromatic solvent naphtha; The oxidation inhibitor of losing lustre of 1～2.5 weight part; The letdown solvent dun of 250～270 weight parts, the compound of described letdown solvent dun aromatic free class; The antiaging agent of 0.5～1.5 weight part.Modified alkyd resin provided by the invention take take off aromatic solvent naphtha as band aqua, it is non-benzene class material, its flow process is narrower, contain hardly aromatic hydrocarbon solvent, owing to using single solvent, more easily by form viscosity index, control control point viscosity in product, thereby the quality of controlling the modified alkyd resin obtaining, modified alkyd resin provided by the invention has stable quality, and stable performance between different batches.And, in modified alkyd resin provided by the invention, do not contain aromatic hydrocarbon solvent, there is better environmental-protecting performance.
The present invention also provides a kind of two component matte varnish that comprise described modified alkyd resin, because modified alkyd resin has good performance, thereby makes the paint film of two component matte varnish also have environmental-protecting performance, and paint film also has excellent physical property performance.
In order to further illustrate the present invention; below in conjunction with embodiment, modified alkyd resin provided by the invention, its preparation method, two component matte varnish and preparation method thereof are described in detail, but they can not be interpreted as to limiting the scope of the present invention.
Embodiment oleic acid, ethylene glycol, Viscotrol C, phthalic anhydride, cis-butenedioic anhydride, hexanodioic acid, tetramethylolmethane, n-butyl acetate, the oxidation inhibitor of losing lustre, antiaging agent used is industrial raw material.The technical grade pentaerythritol that the preferred monopentaerythritol content of tetramethylolmethane is 95%.
The behenic acid that following examples are used be the acid number index of the good sharp grease in Jiangmen between 195-205, iodine number index is at the behenic acid of 122-130; Viscotrol C is selected the refined caster oil of the Yellow River, Shanxi; Antiaging agent is the antiaging agent that the marque of German Lanxess Corporation is BHT-264, and chemical name is BHT; With aqua, select the de-aromatic hydrocarbon solvent of Exxsol-D40 of U.S. Exxon; Solidifying agent is the L-75 solidifying agent of Bayer A.G; DBEWei du pont company product.
Embodiment 1
In empty reactor, lead to nitrogen 8 minutes in advance, nitrogen flow is 2m
3/ h; Drop into the behenic acid of 190 weight parts in reactor, the Hypophosporous Acid, 50 with aqua and 1 weight part of the ethylene glycol of the Viscotrol C of 45 weight parts, 50 weight parts, 15 weight parts (commodity be called M070), and in aforesaid reaction vessel, drop into the phthalic anhydride of 240 weight parts, the hexanodioic acid of the cis-butenedioic anhydride of 2 weight parts, 5 weight parts and the tetramethylolmethane of 130 weight parts by powder special use dog-house.Under agitation condition, be warming up to 160 ℃, insulation refluxes 2 hours, then in 3 hours, is warming up to 200 ℃, is incubated cooling while being 13 seconds/25 ℃ Ge Shi pipes to acid number≤18mgKOH/g, viscosity, when the temperature in described reactor is down to 180 ℃, obtains crude product.Viscosity test method is: get solid resin and dimethylbenzene wiring solution-forming in reactor.Solid resin: dimethylbenzene ratio is 1:0.85 (solid resin accounting is about 53%).
Opening the nitrogen of thinning vessel and controlling its flow is 3m
3/ h, open the cold oil of thinning vessel inner coil pipe, the water coolant of outer adjoining pipe, open to stir, to described thinning vessel, drop into the n-butyl acetate of 125 weight parts, the antiaging agent BHT-264 of 0.5 weight part, and crude product obtained above is proceeded to and in described thinning vessel, carries out latting drown;
Still to be turned is complete, drops into described thinning vessel after cleaning described reactor, by the material stirring cooling in described thinning vessel with the n-butyl acetate of 125 weight parts, be cooled to after 130 ℃, with the filter bag that specification is 20 μ m, filter, discharging barrelling, obtains modified alkyd resin.
The present invention carries out Performance Detection to the modified alkyd resin obtaining, and it does not contain aromatic hydrocarbon solvent, and detected result is as shown in table 1, the performance index of the modified alkyd resin that table 1 makes for the embodiment of the present invention 1.
The performance index of the modified alkyd resin that table 1 embodiment of the present invention 1 makes
As shown in Table 1, the modified alkyd resin that the present invention makes functional, can form filming of different qualities, has very excellent service performance.
Embodiment 2
In empty reactor, lead to nitrogen 3 minutes in advance, nitrogen flow is 8m
3/ h; Drop into the behenic acid of 210 weight parts in reactor, the Hypophosporous Acid, 50 with aqua and 2.5 weight parts of the ethylene glycol of the Viscotrol C of 55 weight parts, 55 weight parts, 30 weight parts (commodity be called M070), and in aforesaid reaction vessel, drop into the phthalic anhydride of 255 weight parts, the hexanodioic acid of the cis-butenedioic anhydride of 3 weight parts, 15 weight parts and the tetramethylolmethane of 150 weight parts by powder special use dog-house.Under agitation be warming up to 160 ℃, insulation refluxes 2 hours, then in 3 hours, is warming up to 200 ℃, is incubated cooling while being 17 seconds/25 ℃ Ge Shi pipes to acid number≤15mgKOH/g, viscosity, when the temperature in described reactor is down to 180 ℃, obtains crude product.Viscosity test method is: get solid resin and dimethylbenzene wiring solution-forming in reactor.Solid resin: dimethylbenzene ratio is 1:0.85 (solid resin accounting is about 53%).
Opening the nitrogen of thinning vessel and controlling its flow is 9m
3/ h, opens the cold oil of thinning vessel inner coil pipe, the water coolant of outer adjoining pipe, opens and stirs, and to described thinning vessel, drops into the n-butyl acetate of 135 weight parts, the antiaging agent BHT-264 of 1.5 weight parts, and described crude product is proceeded to and in described thinning vessel, carries out latting drown;
Still to be turned is complete, drops into described thinning vessel after cleaning described reactor, by the material stirring cooling in described thinning vessel with the n-butyl acetate of 135 weight parts, be cooled to after 130 ℃, with the filter bag that specification is 20 μ m, filter, discharging barrelling, obtains modified alkyd resin.
The modified alkyd resin obtaining is carried out to Performance Detection, and it does not contain aromatic hydrocarbon solvent, and detected result is as shown in table 2, the performance index of the modified alkyd resin that table 2 makes for the embodiment of the present invention 2.
The performance index of the modified alkyd resin that table 2 embodiment of the present invention 2 makes
By table 2, known, the modified alkyd resin that the present invention makes functional, can form filming of different qualities, has very excellent service performance.
Embodiment 3
In empty reactor, lead to nitrogen 5 minutes in advance, nitrogen flow is 3m
3/ h; Drop into the behenic acid of 207 weight parts in reactor, the Hypophosporous Acid, 50 with aqua and 1.8 weight parts of the ethylene glycol of the Viscotrol C of 53 weight parts, 53 weight parts, 25 weight parts (commodity be called M070), and in aforesaid reaction vessel, drop into the phthalic anhydride of 247 weight parts, the hexanodioic acid of the cis-butenedioic anhydride of 2.7 weight parts, 11 weight parts and the tetramethylolmethane of 138 weight parts by powder special use dog-house.Under agitation be warming up to 160 ℃, insulation refluxes 2 hours, then in 3 hours, is warming up to 200 ℃, is incubated cooling while being 15 seconds/25 ℃ Ge Shi pipes to acid number≤15mgKOH/g, viscosity, when the temperature in described reactor is down to 180 ℃, obtains crude product.Viscosity test method is: get solid resin and dimethylbenzene wiring solution-forming in reactor.Solid resin: dimethylbenzene ratio is 1:0.85 (solid resin accounting is about 53%).
Opening the nitrogen of thinning vessel and controlling its flow is 5m
3/ h, opens the cold oil of thinning vessel inner coil pipe, the water coolant of outer adjoining pipe, opens and stirs, and to described thinning vessel, drops into the n-butyl acetate of 130 weight parts, the antiaging agent BHT-264 of 0.7 weight part, and described crude product is proceeded to and in described thinning vessel, carries out latting drown;
Still to be turned is complete, drops into described thinning vessel after cleaning described reactor, by the material stirring cooling in described thinning vessel with the n-butyl acetate of 130 weight parts, be cooled to after 130 ℃, with the filter bag that specification is 20 μ m, filter, discharging barrelling, obtains modified alkyd resin.
The present invention carries out Performance Detection to the modified alkyd resin obtaining, and it does not contain aromatic hydrocarbon solvent, and detected result is as shown in table 3, the performance index of the modified alkyd resin that table 3 makes for the embodiment of the present invention 3.
The performance index of the modified alkyd resin that table 3 embodiment of the present invention 3 makes
As shown in Table 3, the modified alkyd resin that the present invention makes functional, can form filming of different qualities, has very excellent service performance.
Embodiment 4
In empty reactor, lead to nitrogen 6 minutes in advance, nitrogen flow is 4m
3/ h; Drop into the behenic acid of 208 weight parts in reactor, the Hypophosporous Acid, 50 with aqua and 1.7 weight parts of the ethylene glycol of the Viscotrol C of 54 weight parts, 52 weight parts, 26 weight parts (commodity be called M070), and in aforesaid reaction vessel, drop into the phthalic anhydride of 248 weight parts, the hexanodioic acid of the cis-butenedioic anhydride of 2.8 weight parts, 12 weight parts and the tetramethylolmethane of 137 weight parts by powder special use dog-house.Under agitation be warming up to 160 ℃, insulation refluxes 2 hours, then in 3 hours, is warming up to 200 ℃, is incubated cooling while being 14 seconds/25 ℃ Ge Shi pipes to acid number≤15mgKOH/g, viscosity, when the temperature in described reactor is down to 180 ℃, obtains crude product.Viscosity test method is: get solid resin and dimethylbenzene wiring solution-forming in reactor.Solid resin: dimethylbenzene ratio is 1:0.85 (solid resin accounting is about 53%).
Opening the nitrogen of thinning vessel and controlling its flow is 6m
3/ h, opens the cold oil of thinning vessel inner coil pipe, the water coolant of outer adjoining pipe, opens and stirs, and to described thinning vessel, drops into the n-butyl acetate of 132 weight parts, the antiaging agent BHT-264 of 0.8 weight part, and described crude product is proceeded to and in described thinning vessel, carries out latting drown;
Still to be turned is complete, drops into described thinning vessel after cleaning described reactor, by the material stirring cooling in described thinning vessel with the n-butyl acetate of 132 weight parts, be cooled to after 130 ℃, with the filter bag that specification is 20 μ m, filter, discharging barrelling, obtains modified alkyd resin.
The present invention carries out Performance Detection to the modified alkyd resin obtaining, and it does not contain aromatic hydrocarbon solvent, and detected result is as shown in table 4, the performance index of the modified alkyd resin that table 4 makes for the embodiment of the present invention 4.
The performance index of the modified alkyd resin that table 4 embodiment of the present invention 4 makes
As shown in Table 4, the modified alkyd resin that the present invention makes functional, can form filming of different qualities, has very excellent service performance.
Embodiment 5
The macromolecule dispersing agent of the modified alkyd resin that the embodiment of 78 parts by weight 1 is made, 0.5 parts by weight is blended under the rotating speed of 500 revs/min and disperses 5 minutes, obtains the first mixture;
Described the first mixture is mixed with the polyethylene wax powder of 0.3 parts by weight, the flatting silica of 3.5 parts by weight, under the rotating speed of 2000 revs/min, disperse 15 minutes, obtain the second mixture;
Described the second mixture is mixed with polyoxygenated amide waxe anti-settling agent, the non-silicon defoamer of 0.6 parts by weight, the poly-methyl alkyl siloxane flow agent of the aralkyl modification of 0.15 parts by weight, the 1-Methoxy-2-propyl acetate of 3.0 parts by weight and the n-butyl acetate of 7.5 parts by weight of 1.5 parts by weight, under the rotating speed of 500 revs/min, disperse 5 minutes, obtain two component matte varnish.
L-75 solidifying agent is adopted to n-butyl acetate latting drown, obtain the solid solidifying agent containing being 40%; The DBE of the 1-Methoxy-2-propyl acetate of the n-butyl acetate of 75 weight parts, 22 weight parts and 3 weight parts is mixed, obtain thinner; The two component matte varnish that obtain are mixed according to the mass ratio of 1:0.5:0.5 with solidifying agent and thinner, and preparation obtains painting liquid, after standing 5min froth breaking, utilizes gas spray gun that paint liquid is sprayed on the woodenware sheet material that scribbles priming paint, after drying, obtains paint film.
The present invention detects glossiness, hardness, shock resistance, sticking power and the clarity of paint film, and result is as shown in table 5, the performance test results of the paint film that table 5 obtains for the embodiment of the present invention 5～8.
Embodiment 6
The macromolecule dispersing agent of the modified alkyd resin that the embodiment of 82 parts by weight 2 is obtained, 1.0 parts by weight is blended under the rotating speed of 300 revs/min and disperses 10 minutes, obtains the first mixture;
Described the first mixture is mixed with the polyethylene wax powder of 0.7 parts by weight, the flatting silica of 4.5 parts by weight, under the rotating speed of 1600 revs/min, disperse 20 minutes, obtain the second mixture;
Described the second mixture is mixed with polyoxygenated amide waxe anti-settling agent, the non-silicon defoamer of 1.0 parts by weight, the poly-methyl alkyl siloxane flow agent of the aralkyl modification of 0.25 parts by weight, the 1-Methoxy-2-propyl acetate of 4.0 parts by weight and the n-butyl acetate of 8.5 parts by weight of 2.5 parts by weight, under the rotating speed of 300 revs/min, disperse 10 minutes, obtain two component matte varnish.
L-75 solidifying agent is adopted to n-butyl acetate latting drown, obtain the solid solidifying agent containing being 40%; The DBE of the 1-Methoxy-2-propyl acetate of the n-butyl acetate of 75 weight parts, 22 weight parts and 3 weight parts is mixed, obtain thinner; The two component matte varnish that obtain are mixed according to the mass ratio of 1:0.5:0.5 with solidifying agent and thinner, and preparation obtains painting liquid, after standing 5min froth breaking, utilizes gas spray gun that paint liquid is sprayed on the woodenware sheet material that scribbles priming paint, after drying, obtains paint film.
The present invention detects glossiness, hardness, shock resistance, sticking power and the clarity of paint film, and result is as shown in table 5, the performance test results of the paint film that table 5 obtains for the embodiment of the present invention 5～8.
Embodiment 7
The macromolecule dispersing agent of the modified alkyd resin that the embodiment of 80 parts by weight 3 is made, 0.8 parts by weight is blended under the rotating speed of 400 revs/min and disperses 7 minutes, obtains the first mixture;
Described the first mixture is mixed with the polyethylene wax powder of 0.7 parts by weight, the flatting silica of 4.0 parts by weight, under the rotating speed of 1800 revs/min, disperse 18 minutes, obtain the second mixture;
Described the second mixture is mixed with polyoxygenated amide waxe anti-settling agent, the non-silicon defoamer of 0.8 parts by weight, the poly-methyl alkyl siloxane flow agent of the aralkyl modification of 0.20 parts by weight, the 1-Methoxy-2-propyl acetate of 3.5 parts by weight and the n-butyl acetate of 8.2 parts by weight of 2.0 parts by weight, under the rotating speed of 400 revs/min, disperse 8 minutes, obtain two component matte varnish.
L-75 solidifying agent is adopted to n-butyl acetate latting drown, obtain the solid solidifying agent containing being 40%; The DBE of the 1-Methoxy-2-propyl acetate of the n-butyl acetate of 75 weight parts, 22 weight parts and 3 weight parts is mixed, obtain thinner; The two component matte varnish that obtain are mixed according to the mass ratio of 1:0.5:0.5 with solidifying agent and thinner, and preparation obtains painting liquid, after standing 5min froth breaking, utilizes gas spray gun that paint liquid is sprayed on the woodenware sheet material that scribbles priming paint, after drying, obtains paint film.
The present invention detects glossiness, hardness, shock resistance, sticking power and the clarity of paint film, and result is as shown in table 5, the performance test results of the paint film that table 5 obtains for the embodiment of the present invention 5～8.
Embodiment 8
The macromolecule dispersing agent of the modified alkyd resin that the embodiment of 81 parts by weight 4 is made, 0.7 parts by weight is blended under the rotating speed of 450 revs/min and disperses 6 minutes, obtains the first mixture;
Described the first mixture is mixed with the polyethylene wax powder of 0.6 parts by weight, the flatting silica of 4.1 parts by weight, under the rotating speed of 1900 revs/min, disperse 16 minutes, obtain the second mixture;
Described the second mixture is mixed with polyoxygenated amide waxe anti-settling agent, the non-silicon defoamer of 0.7 parts by weight, the poly-methyl alkyl siloxane flow agent of the aralkyl modification of 0.21 parts by weight, the 1-Methoxy-2-propyl acetate of 3.5 parts by weight and the n-butyl acetate of 8.3 parts by weight of 2.1 parts by weight, under 350 rotating speed, disperse 9 minutes, obtain two component matte varnish.
L-75 solidifying agent is adopted to n-butyl acetate latting drown, obtain the solid solidifying agent containing being 40%; The DBE of the 1-Methoxy-2-propyl acetate of the n-butyl acetate of 75 weight parts, 22 weight parts and 3 weight parts is mixed, obtain thinner; The two component matte varnish that obtain are mixed according to the mass ratio of 1:0.5:0.5 with solidifying agent and thinner, and preparation obtains painting liquid, after standing 5min froth breaking, utilizes gas spray gun that paint liquid is sprayed on the woodenware sheet material that scribbles priming paint, after drying, obtains paint film.
The present invention detects glossiness, hardness, shock resistance, sticking power and the clarity of paint film, and result is as shown in table 5, the performance test results of the paint film that table 5 obtains for the embodiment of the present invention 5～8.
The performance test results of the paint film that table 5 embodiment of the present invention 5～8 obtains.
(remarks: clarity is divided into standard with 5 and divides, interval in 1～9 range respectively, 1 is that performance is the poorest, 9 is that performance is best.)
As seen from the above embodiment, modified alkyd resin provided by the invention take take off aromatic solvent naphtha as band aqua, it is non-benzene class material, its flow process is narrower, contain hardly aromatic hydrocarbon solvent, owing to using single solvent, more easily by form viscosity index, control control point viscosity in product, thereby control the quality of the modified alkyd resin obtaining, modified alkyd resin provided by the invention has stable quality, and stable performance between different batches.And, in modified alkyd resin provided by the invention, do not contain aromatic hydrocarbon solvent, there is better environmental-protecting performance.
The present invention also provides a kind of two component matte varnish that comprise described modified alkyd resin, because modified alkyd resin not only has good performance, simultaneously due to aromatic free kind solvent, thereby make two component matte varnish have environmental-protecting performance, paint film also has excellent physicals.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. modified alkyd resin, is made by alkyd mixture reaction, and described alcohol acid mixture comprises following component:
The behenic acid of 190～210 weight parts;
The Viscotrol C of 45～55 weight parts;
The ethylene glycol of 50～55 weight parts;
The phthalic anhydride of 240～255 weight parts;
The cis-butenedioic anhydride of 2～3 weight parts;
The hexanodioic acid of 5～15 weight parts;
The tetramethylolmethane of 130～150 weight parts;
The non-benzene class band aqua of 15～30 weight parts, described non-benzene class band aqua is de-aromatic solvent naphtha;
The oxidation inhibitor of losing lustre of 1～2.5 weight part;
The letdown solvent dun of 250～270 weight parts, described letdown solvent dun is the compound of aromatic free class;
The antiaging agent of 0.5～1.5 weight part.
2. modified alkyd resin according to claim 1, is characterized in that, described non-benzene class band aqua is paraffinic solvent oil.
3. modified alkyd resin according to claim 1, is characterized in that, described letdown solvent dun is n-butyl acetate.
4. the preparation method of modified alkyd resin described in claim 1～3 any one, comprises the following steps:
A) under protection of inert gas, behenic acid, Viscotrol C, ethylene glycol, phthalic anhydride, cis-butenedioic anhydride, hexanodioic acid, tetramethylolmethane, non-benzene class band aqua and the oxidation inhibitor of losing lustre are mixed, reaction obtains crude product;
B) described crude product is mixed with letdown solvent dun and antiaging agent, obtain modified alkyd resin.
5. preparation method according to claim 4, is characterized in that, described step a) mix after, the mixture obtaining is warming up to 160 ℃～185 ℃, insulation refluxes, and obtains head product;
Described head product is warming up to 200 ℃～220 ℃, and reaction obtains crude product.
6. preparation method according to claim 5, is characterized in that, the time that described insulation refluxes is 1 hour～2 hours.
7. preparation method according to claim 5, is characterized in that, described in to be warming up to time of 200 ℃～220 ℃ be 3 hours～5 hours.
8. preparation method according to claim 5, is characterized in that, described in be warming up to after 200 ℃～220 ℃, when insulation reaction to acid number≤18mgKOH/g, the viscosity of material is 13 seconds/25 ℃～17 seconds/25 ℃, cooling obtains crude product.
9. preparation method according to claim 8, is characterized in that, the temperature of described cooling is 180 ℃～220 ℃.
10. two component matte varnish, comprise following component:
78～82 weight part Synolac, described Synolac is the modified alkyd resin that described in modified alkyd resin or claim 4～9 any one, preparation method makes described in claim 1～3 any one;
The dispersion agent of 0.5～1.5 weight part;
The polyethylene wax powder of 0.3～0.7 weight part;
The flatting silica of 3.5～4.5 weight parts;
The polyoxygenated amide waxe anti-settling agent of 1.5～2.5 weight parts;
The poly-methyl alkyl siloxane flow agent of the aralkyl modification of 0.15～0.25 weight part;
The 1-Methoxy-2-propyl acetate of 3.0～4.0 weight parts;
The non-silicon defoamer of 0.05～0.15 weight part;
The n-butyl acetate of 7.5～8.5 weight parts.
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| CN108359085A (en) * | 2018-01-02 | 2018-08-03 | 河北晨阳工贸集团有限公司 | Applied to the dewatering process in alkyd or polyester resin synthesis |
| CN109251641A (en) * | 2018-08-09 | 2019-01-22 | 中山市大涂料有限公司 | A kind of ordor removing PU clear finish and preparation method thereof |
| CN112480796A (en) * | 2020-12-17 | 2021-03-12 | 广东花王涂料有限公司 | Woodware varnish and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104293129A (en) * | 2014-09-19 | 2015-01-21 | 英德市雅家涂料有限公司 | Tasteless high-transparency full-matt top-coat paint and preparation method thereof |
| CN104293129B (en) * | 2014-09-19 | 2018-04-06 | 英德市雅家涂料有限公司 | A kind of net taste high transparency mute clear finish and preparation method thereof entirely |
| CN108359085A (en) * | 2018-01-02 | 2018-08-03 | 河北晨阳工贸集团有限公司 | Applied to the dewatering process in alkyd or polyester resin synthesis |
| CN108359085B (en) * | 2018-01-02 | 2020-07-28 | 河北晨阳工贸集团有限公司 | Dehydration process applied to synthesis of alkyd or polyester resin |
| CN109251641A (en) * | 2018-08-09 | 2019-01-22 | 中山市大涂料有限公司 | A kind of ordor removing PU clear finish and preparation method thereof |
| CN112480796A (en) * | 2020-12-17 | 2021-03-12 | 广东花王涂料有限公司 | Woodware varnish and preparation method thereof |
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