CN103421170A - Epoxy resin-acrylic resin modified water-dispersible alkyd resin and preparation and application thereof - Google Patents
Epoxy resin-acrylic resin modified water-dispersible alkyd resin and preparation and application thereof Download PDFInfo
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Abstract
The invention relates to epoxy resin-acrylic resin modified water-dispersible alkyd resin made from, by weight, 70-150 parts of epoxy resin, 210-235 parts of dry or semidry oleic acid, 50-60 parts of glycidyl tertcarbonate, 45-52 parts of polyhydric alcohol, 10-30 parts of dimethylolpropionic acid, 49-128 parts of polybasic acid, 168-300 parts of acrylic resin, and 230-250 parts of diluter by reaction. The invention further provides a preparation method of the resin and application of the resin in the preparation of antirust paint. The epoxy resin and acrylic resin are modified, a great amount of side-chain fatty acid is introduced to the alkyd resin, and accordingly, hydrolysis resistance of the alkyd resin in water is improved greatly and the problem that the traditional water-borne alkyd is poor in hydrolysis resistance is solved; meanwhile, dryness, weatherability and salt spray resistance are also improved greatly, and the alkyd resin can still be fine in leveling property, constructability, wettability and flexibility.
Description
Technical field
The present invention relates to the water-borne coatings field, be specifically related to a kind of epoxy resin and acrylic resin modified water-dispersion Synolac and preparation and application.
Background technology
Oil paint can volatilize a large amount of objectionable impurities (VOC) in production and use procedure, brings a lot of negative impacts to human lives's environment, and is having a strong impact on the mankind's health.Along with the pay attention to day by day of people to environment protection, the Water-borne modification of coating is the target that people constantly pursue.In addition, petroleum resources are Nonrenewable resources, along with continuous exploitation is used, always have one day that exhausts, and therefore use as far as possible the renewable resources raw material in oil paint, significant on the sustainability of resource.
Summary of the invention
One object of the present invention is to provide a kind of epoxy resin and acrylic resin modified water-dispersion Synolac, can be used for the anticorrosion and decorative paintings such as metal, bamboo and wood products after this resin is prepared into to water-borne coatings.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of epoxy resin and acrylic resin modified water-dispersion Synolac is obtained by following component reaction by weight:
Epoxy resin 70-150 part, dryness or semi-drying oleic acid 210-235 part, tertiary carbonic acid glycidyl ester 50-60 part, polyvalent alcohol 45-52 part, dimethylol propionic acid 10-30 part, polyprotonic acid 49-128 part, acrylic resin 168-300 part, thinner 230-250 part.
Described acrylic resin is obtained by following component reaction by weight: vinyl monomer 570-575 part, 400 parts of solubility promoters, initiator 25-30 part; Wherein, described vinyl monomer is mixed by following two groups of materials:
A) a kind of in vinylformic acid, methacrylic acid or two kinds;
B) in butyl acrylate, butyl methacrylate, Isooctyl acrylate monomer, methyl methacrylate, isobornyl methacrylate, methacrylic acid laurate, cinnamic at least two kinds.
Described solubility promoter is a kind of in methyl iso-butyl ketone (MIBK), N-BUTYL ACETATE, 1-Methoxy-2-propyl acetate.
Described initiator is 3, a kind of in 5, the 5-tri-methyl hexanoic acid peroxidation tert-butyl ester, the 2 ethyl hexanoic acid peroxidation tert-butyl ester, peroxidized t-butyl perbenzoate, benzoyl peroxide, di-t-butyl peroxide superoxide, peroxidation two t-amyl peroxy things, dicumyl peroxide or two kinds.
Described dryness or semi-drying oleic acid are a kind of in soybean oleic acid, linolenic acid, linolic acid, Chinese catalpa oleic acid, eleostearic acid, dehydrated castor oleic acid, tall oil acid.
Described polyvalent alcohol is a kind of in neopentyl glycol, TriMethylolPropane(TMP), tetramethylolmethane.
Described polyprotonic acid is a kind of in Tetra hydro Phthalic anhydride, hexanodioic acid, m-phthalic acid, terephthalic acid or two kinds.
Described thinner is a kind of in propylene-glycol ethyl ether, propandiol butyl ether, isopropylcarbinol, butanols, propylene glycol monomethyl ether or two kinds.
Described epoxy resin is bisphenol A type epoxy resin, and its epoxy equivalent (weight) is 190-900.
Another object of the present invention is to provide the preparation method of above-mentioned epoxy resin and acrylic resin modified water-dispersion Synolac.
A kind of method for preparing above-mentioned epoxy resin and acrylic resin modified water-dispersion Synolac comprises following steps:
A: prepare acrylic resin
A) by said ratio, vinyl monomer and initiator are joined respectively in the monomer dropping tank, control and drip
Tank temperature≤35 ℃;
B) solubility promoter is joined to reactor, start after vacuumizing to heat up;
C) start to drip monomer when temperature is raised to 140-180 ℃, the time for adding of monomer is 4-8h, drips off by insulation, cooling, discharges vacuum to normal pressure, filtration, obtains acrylic resin;
B: prepare epoxy resin and acrylic resin modified water-dispersion Synolac
A) by said ratio, steps A gained acrylic resin, epoxy resin, dryness or semi-drying oleic acid, dimethylol propionic acid, tertiary carbonic acid glycidyl ester, polyprotonic acid, polyvalent alcohol are added to reactor, pass into the nitrogen post-heating and heat up, stopped reaction when in reactor, the reactant acid value is 20-30mgKOH/g;
B), after vacuumizing and removing residual solvent, being diluted to non-volatile part of content with thinner is 75 ± 2%, obtains epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention.
In the step a) of described step B, the process of heat temperature raising is preferably: be warming up to 140 ℃ being no less than in the time of 1h, insulation 2h; Be warming up to 160 ℃ being no less than in the time of 0.5h, insulation 3h; Be warming up to 180 ℃ being no less than in the time of 0.5h, be incubated to reactant acid value in reactor be 20-30mgKOH/g.
It is for fear of the gel phenomenon occurs that temperature of reaction is controlled at below 180 ℃.
The present invention (introduces vinyl monomer as acrylic acid or the like and acrylic ester monomer by the epoxy resin and acrylic resin modified, epoxy resin and tertiary carbonic acid glycidyl ester modification) and the method for introducing a large amount of branched fatty acids on Synolac, greatly improved the anti-hydrolytic performance of epoxy resin and acrylic resin modified water-dispersion Synolac in water, solved the poor problem of traditional water alcohol acid hydrolytic resistance, its drying property of while, weather resistance and salt fog resistance also are greatly improved, also retained the Synolac levelling property, application property, wettability, snappiness is characteristics preferably.
Simultaneously, epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention can be easy to, by the kind of change polyvalent alcohol and the consumption of unsaturated fatty acids, change the oil content that modified water is disperseed Synolac, thereby reaches the purpose of regulating paint film property.
In addition in the preparation method, adopted the pressurization building-up reactions method, boiling point raising due to solvent under pressurized state, make when synthetic this resinoid under liquid-phase reaction condition selectable solvent species more, can set according to the height of solvent boiling point the size of reaction pressure, it is little that the resin made has a molecular weight, and the characteristic that molecular weight distribution is narrower has solved modified water simultaneously and disperseed the problem that Synolac building-up process viscosity is excessive, gel easily occurs.
Utilize epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention as base-material, can make a kind of epoxy resin and acrylic resin modified water-dispersion Synolac rust-inhibiting paint.Above-mentioned rust-inhibiting paint can adopt technology preparation well known in the art, and wherein preferred preparation method is:
Composed of the following components by weight:
25 parts of epoxy resin and acrylic resin modified water-dispersion Synolac, 1 part of dimethylethanolamine, 39 parts of deionized waters, 0.3 part of dispersion agent, 0.1 part of defoamer, 15 parts of red iron oxides, 18 parts of process whites, 0.5 part of strontium yellow, 0.5 part of siccative, 0.3 part of wetting agent, 0.3 part of thickening material.
By epoxy resin and acrylic resin modified water-dispersion Synolac, dimethylethanolamine, deionized water, dispersion agent, defoamer, red iron oxide, process white, strontium yellow in said components, join successively in dispersing apparatus, high speed dispersion 20min, then adopt skin grinder to be dispersed to paint vehicle granularity≤30 μ m, add wetting agent and thickening material, adjusting viscosity filters after 60-150 second/coating-4 viscosity meter .25 ℃, obtains epoxy resin and acrylic resin modified water-dispersion Synolac rust-inhibiting paint.
Above-mentioned rust-inhibiting paint adopts epoxy resin and acrylic resin and dryness or the modification of semi-drying oleic acid to obtain the macromolecule product that contains certain acid value, the neutralization of employing organic amine, form organic ammonium salt, add again water to form water dispersion, add after the water-based siccative can be in air crosslinked film forming, gained paint film property excellence.Owing to adopting water as dispersion medium, fully can Substitute For Partial oiliness prepared alkyd paint, reduce the discharge of VOC, there is positive environment protection significance.The workability of this rust-inhibiting paint, outward appearance, sticking power, shock-resistance, paint film flexibility are suitable with the oiliness alkydpaints; Gloss of film, fullness ratio aspect oiliness alkydpaints are slightly better.But water-dispersion alkyd is compared with the oiliness alkyd paint after the epoxy resin and acrylic modification, water-fast and salt fog resistance obviously improves, and hardness also also improves than the oiliness alkyd paint.Modified water disperses alkydpaints not only on the feature of environmental protection, than the oleic acid alkydpaints, to have obvious advantage, as its barrier propterty of protective paint, also than the oiliness alkyd paint, is greatly improved, and be the ideal substitute of oiliness alkyd as the metal protection paint.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
A: prepare acrylic resin
400 parts of methyl iso-butyl ketone (MIBK), 200 parts of methacrylic acids, 120 parts of vinylbenzene, 180 parts of Isooctyl acrylate monomers, 70 parts of isobornyl methacrylates, 20 parts of the 2 ethyl hexanoic acid peroxidation tert-butyl esters, 10 parts of di-t-butyl peroxide superoxide.
A) by said ratio, vinyl monomer and initiator are joined respectively in the monomer dropping tank, stir, open and drip the tank water coolant, control dropping tank temperature≤35 ℃;
B) solubility promoter is joined to reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, then with nitrogen, is depressed into again normal pressure, then after vacuumizing, starts to heat up;
C) start to drip monomer when temperature is raised to 170 ℃, time for adding is 5h, and is incubated two hours at this temperature, then start cooling, when temperature drops to below 100 ℃, the emptying reacting kettle inner pressure is to normal pressure, filtered with the filter bag of 10 microns or following specification, obtained acrylic resin;
B: prepare epoxy resin and acrylic resin modified water-dispersion Synolac
80 parts of E51 epoxy resin, 235 parts of linolenic acids, 60 parts of tertiary carbonic acid glycidyl esters (E-10), 45 parts of neopentyl glycol, 20 parts of dimethylol propionic acids, 120 parts of hexanodioic acids, 205 parts of acrylic resins, 235 parts of propandiol butyl ethers.
A) by said ratio, steps A gained acrylic resin, epoxy resin, dryness or semi-drying oleic acid, dimethylol propionic acid, tertiary carbonic acid glycidyl ester, polyprotonic acid, polyvalent alcohol are added to reactor, passing into nitrogen 20min post-heating heats up, to be no less than 1h in the time, temperature is warming up to 140 ℃, insulation 2h.Be no less than in the time of 0.5h be warming up to 160 ℃ the insulation 3h.Be no less than in the time of 0.5h be warming up to 180 ℃ of insulations to react to reactant acid value in reactor be 20-30mgKOH/g;
B), after vacuumizing and removing remaining solubility promoter, being diluted to non-volatile part of content with propandiol butyl ether is 75 ± 2%, obtains epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention.
Embodiment 2
A: prepare acrylic resin
400 parts of 1-Methoxy-2-propyl acetates, 155 parts, vinylformic acid, 230 parts of methyl methacrylates, 120 parts of butyl methacrylate, 70 parts of butyl acrylates, 15 parts of benzoyl peroxides, 10 parts of the 3,5,5 Trimethylhexanoic acid peroxidation tert-butyl esters.
A) by said ratio, vinyl monomer and initiator are joined respectively in the monomer dropping tank, stir, open and drip the tank water coolant, control dropping tank temperature≤35 ℃;
B) solubility promoter is joined to reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, then with nitrogen, is depressed into again normal pressure, then after vacuumizing, starts to heat up;
C) start to drip monomer when temperature is raised to 150 ℃, time for adding is 4h, and is incubated two hours at this temperature, then start cooling, when temperature drops to below 100 ℃, the emptying reacting kettle inner pressure is to normal pressure, filtered with the filter bag of 10 microns or following specification, obtained acrylic resin;
B: prepare epoxy resin and acrylic resin modified water-dispersion Synolac
100 parts of E20 epoxy resin, 210 parts of soybean oleic acid, 50 parts of tertiary carbonic acid glycidyl esters (E-10), 50 parts of TriMethylolPropane(TMP)s, 20 parts of dimethylol propionic acids, 95 parts of Tetra hydro Phthalic anhydrides, 220 parts of acrylic resins, 230 parts of isopropylcarbinols.
A) by said ratio, steps A gained acrylic resin, epoxy resin, dryness or semi-drying oleic acid, dimethylol propionic acid, tertiary carbonic acid glycidyl ester, polyprotonic acid, polyvalent alcohol are added to reactor, passing into nitrogen 20min post-heating heats up, to be no less than 1h in the time, temperature is warming up to 140 ℃, insulation 2h.Be no less than in the time of 0.5h be warming up to 160 ℃ the insulation 3h.Be no less than in the time of 0.5h be warming up to 180 ℃ of insulations to react to reactant acid value in reactor be 20-30mgKOH/g;
B), after vacuumizing and removing remaining solubility promoter, being diluted to non-volatile part of content with isopropylcarbinol is 75 ± 2%, obtains epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention.
Embodiment 3
A: prepare acrylic resin
400 parts of N-BUTYL ACETATEs, 170 parts of methacrylic acids, 40 parts, vinylformic acid, 180 parts of vinylbenzene, 130 parts of lauryl methacrylate(LMA)s, 50 parts of methyl methacrylates, 15 parts of peroxidized t-butyl perbenzoates, 10 parts of peroxidation two t-amyl peroxy things.
A) by said ratio, vinyl monomer and initiator are joined respectively in the monomer dropping tank, stir, open and drip the tank water coolant, control dropping tank temperature≤35 ℃;
B) solubility promoter is joined to reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, then with nitrogen, is depressed into again normal pressure, then after vacuumizing, starts to heat up;
C) start to drip monomer when temperature is raised to 160 ℃, time for adding is 6h, and is incubated two hours at this temperature, then start cooling, when temperature drops to below 100 ℃, the emptying reacting kettle inner pressure is to normal pressure, filtered with the filter bag of 10 microns or following specification, obtained acrylic resin;
B: prepare epoxy resin and acrylic resin modified water-dispersion Synolac
110 parts of E12 epoxy resin, 220 parts of eleostearic acids, 50 parts of tertiary carbonic acid glycidyl esters (E-10), 52 parts of neopentyl glycol, 10 parts of dimethylol propionic acids, 58 parts of hexanodioic acids, 70 parts of m-phthalic acids, 180 parts of acrylic resins, 250 parts of propylene glycol monomethyl ethers.
A) by said ratio, steps A gained acrylic resin, epoxy resin, dryness or semi-drying oleic acid, dimethylol propionic acid, tertiary carbonic acid glycidyl ester, polyprotonic acid, polyvalent alcohol are added to reactor, passing into nitrogen 20min post-heating heats up, to be no less than 1h in the time, temperature is warming up to 140 ℃, insulation 2h.Be no less than in the time of 0.5h be warming up to 160 ℃ the insulation 3h.Be no less than in the time of 0.5h be warming up to 180 ℃ of insulations to react to reactant acid value in reactor be 20-30mgKOH/g;
B), after vacuumizing and removing remaining solubility promoter, being diluted to non-volatile part of content with propylene glycol monomethyl ether is 75 ± 2%, obtains epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention.
Embodiment 4
A: prepare acrylic resin
400 parts of N-BUTYL ACETATEs, 170 parts of methacrylic acids, 210 parts of isobornyl methacrylates, 140 parts of Isooctyl acrylate monomers, 50 parts of butyl methacrylate, 15 parts of the 2 ethyl hexanoic acid peroxidation tert-butyl esters, 10 parts of dicumyl peroxides.
A) by said ratio, vinyl monomer and initiator are joined respectively in the monomer dropping tank, stir, open and drip the tank water coolant, control dropping tank temperature≤35 ℃;
B) solubility promoter is joined to reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, then with nitrogen, is depressed into again normal pressure, then after vacuumizing, starts to heat up;
C) when being raised to 155 ℃, temperature starts to drip monomer, time for adding is 5.5h, and be incubated two hours at this temperature, then start cooling, when temperature drops to below 100 ℃, the emptying reacting kettle inner pressure is to normal pressure, with the filter bag of 10 microns or following specification, filtered, and obtains acrylic resin;
B: prepare epoxy resin and acrylic resin modified water-dispersion Synolac
150 parts of E44 epoxy resin, 210 parts of dehydrated castor oleic acid, 60 parts of tertiary carbonic acid glycidyl esters (E-10), 47 parts of tetramethylolmethanes, 30 parts of dimethylol propionic acids, 100 parts of terephthalic acids, 168 parts of acrylic resins, 235 parts, butanols.
A) by said ratio, steps A gained acrylic resin, epoxy resin, dryness or semi-drying oleic acid, dimethylol propionic acid, tertiary carbonic acid glycidyl ester, polyprotonic acid, polyvalent alcohol are added to reactor, passing into nitrogen 20min post-heating heats up, to be no less than 1h in the time, temperature is warming up to 140 ℃, insulation 2h.Be no less than in the time of 0.5h be warming up to 160 ℃ the insulation 3h.Be no less than in the time of 0.5h be warming up to 180 ℃ of insulations to react to reactant acid value in reactor be 20-30mgKOH/g;
B), after vacuumizing and removing remaining solubility promoter, being diluted to non-volatile part of content with butanols is 75 ± 2%, obtains epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention.
Embodiment 5
A: prepare acrylic resin
400 parts of mibks, 180 parts, vinylformic acid, 200 parts of methyl methacrylates, 140 parts of Isooctyl acrylate monomers, 50 parts of lauryl methacrylate(LMA)s, 10 parts of dicumyl peroxides, 20 parts of the 3,5,5 Trimethylhexanoic acid peroxidation tert-butyl esters.
A) by said ratio, vinyl monomer and initiator are joined respectively in the monomer dropping tank, stir, open and drip the tank water coolant, control dropping tank temperature≤35 ℃;
B) solubility promoter is joined to reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, then with nitrogen, is depressed into again normal pressure, then after vacuumizing, starts to heat up;
C) start to drip monomer when temperature is raised to 140 ℃, time for adding is 8h, and is incubated two hours at this temperature, then start cooling, when temperature drops to below 100 ℃, the emptying reacting kettle inner pressure is to normal pressure, filtered with the filter bag of 10 microns or following specification, obtained acrylic resin;
B: prepare epoxy resin and acrylic resin modified water-dispersion Synolac
70 parts of E51 epoxy resin, 220 parts of tall oil acids, 50 parts of tertiary carbonic acid glycidyl esters (E-10), 52 parts of TriMethylolPropane(TMP)s, 19 parts of dimethylol propionic acids, 49 parts of m-phthalic acids, 300 parts of acrylic resins, 135 parts of isopropylcarbinols, 100 parts of propylene-glycol ethyl ethers.
A) by said ratio, steps A gained acrylic resin, epoxy resin, dryness or semi-drying oleic acid, dimethylol propionic acid, tertiary carbonic acid glycidyl ester, polyprotonic acid, polyvalent alcohol are added to reactor, passing into nitrogen 20min post-heating heats up, to be no less than 1h in the time, temperature is warming up to 140 ℃, insulation 2h.Be no less than in the time of 0.5h be warming up to 160 ℃ the insulation 3h.Be no less than in the time of 0.5h be warming up to 180 ℃ of insulations to react to reactant acid value in reactor be 20-30mgKOH/g;
B), after vacuumizing and removing remaining solubility promoter, being diluted to non-volatile part of content with isopropylcarbinol, propylene-glycol ethyl ether is 75 ± 2%, obtains epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention.
The Application Example of epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention
A kind of epoxy resin and acrylic resin modified water-dispersion Synolac rust-inhibiting paint that utilizes epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention to make, composed of the following components by weight:
25 parts of epoxy resin and acrylic resin modified water-dispersion Synolac, 1 part of dimethylethanolamine, 39 parts of deionized waters, 0.3 part of dispersion agent, 0.1 part of defoamer, 15 parts of red iron oxides, 18 parts of process whites, 0.5 part of strontium yellow, 0.5 part of siccative, 0.3 part of wetting agent, 0.3 part of thickening material.
By epoxy resin and acrylic resin modified water-dispersion Synolac, dimethylethanolamine, deionized water, dispersion agent, defoamer, red iron oxide, process white, strontium yellow in said components, join successively in dispersing apparatus, high speed dispersion 20min, then adopt skin grinder to be dispersed to paint vehicle granularity≤30 μ m, add wetting agent and thickening material, adjusting viscosity filters after 60-150 second/coating-4 viscosity meter .25 ℃, obtains epoxy resin and acrylic resin modified water-dispersion Synolac rust-inhibiting paint.
Above-mentioned gained rust-inhibiting paint is carried out to performance test as follows:
It is 20-35 second/coating-4 viscosity meter .25 ℃ that above-mentioned gained rust-inhibiting paint is diluted to viscosity with deionized water, then adopts and has gas spray gun to be sprayed on tinplate.Standing 10min after spray is good, after putting into 60 ℃ of convection oven baking 30min, then be placed in air seasoning 7 days, and dried product is carried out to the performance test evaluation, and result is as shown in table 1 below.
Table 1 modified water is disperseed Synolac rust-inhibiting paint the performance test results
| ? | Modified water is disperseed alkydpaints | The oiliness alkydpaints |
| Film thickness/μ m | 30 | 30 |
| Workability | Excellent | Excellent |
| Outward appearance | Smooth | Smooth |
| Gloss (60 °) | 81 | 85 |
| Fullness ratio | Better | Excellent |
| Draw circle test/level | 1 | 1 |
| Sticking power/level | ≤1 | ≤1 |
| Shock-resistant (kg.cm) | 50 | 50 |
| Paint film flexibility | 1 | 1 |
| Pencil hardness | HB-H | HB |
| Soaking-resistant (25 °) | ≥120h | ≤72 |
| Salt spray resistance | ≥72h | ≤48 |
From the test result of table 1, can find out, the rust-inhibiting paint that the modified water of take disperses alkyd to make as base-material, its workability, outward appearance, sticking power, shock-resistance, paint film flexibility are suitable with the oiliness alkydpaints; Gloss of film, fullness ratio aspect oiliness alkydpaints are slightly better.But water-dispersion alkyd is compared with the oiliness alkyd paint after the epoxy resin and acrylic modification, water-fast and salt fog resistance obviously improves, and hardness also also improves than the oiliness alkyd paint.Modified water disperses alkydpaints not only on the feature of environmental protection, than the oleic acid alkydpaints, to have obvious advantage, as its barrier propterty of protective paint, also than the oiliness alkyd paint, is greatly improved, and be the ideal substitute of oiliness alkyd as the metal protection paint.
Should be understood that these embodiment only are not used in and limit the scope of the invention for the present invention is described.After the content of having read the present invention's instruction, those skilled in the art can do various conversion or modification to the present invention with any same or similar means, within these equivalent form of values fall into protection scope of the present invention equally.
Claims (10)
1. an epoxy resin and acrylic resin modified water-dispersion Synolac is characterized in that by following component reaction, being obtained by weight:
Epoxy resin 70-150 part, dryness or semi-drying oleic acid 210-235 part, tertiary carbonic acid glycidyl ester 50-60 part, polyvalent alcohol 45-52 part, dimethylol propionic acid 10-30 part, polyprotonic acid 49-128 part, acrylic resin 168-300 part, thinner 230-250 part.
2. Synolac according to claim 1, it is characterized in that: described acrylic resin is obtained by following component reaction by weight: vinyl monomer 570-575 part, 400 parts of solubility promoters, initiator 25-30 part; Wherein, described vinyl monomer is mixed by following two groups of materials:
A) a kind of in vinylformic acid, methacrylic acid or two kinds;
B) in butyl acrylate, butyl methacrylate, Isooctyl acrylate monomer, methyl methacrylate, isobornyl methacrylate, methacrylic acid laurate, cinnamic at least two kinds.
3. Synolac according to claim 2 is characterized in that: described solubility promoter is a kind of in methyl iso-butyl ketone (MIBK), N-BUTYL ACETATE, 1-Methoxy-2-propyl acetate.
4. Synolac according to claim 2, it is characterized in that: described initiator is 3, a kind of in 5, the 5-tri-methyl hexanoic acid peroxidation tert-butyl ester, the 2 ethyl hexanoic acid peroxidation tert-butyl ester, peroxidized t-butyl perbenzoate, benzoyl peroxide, di-t-butyl peroxide superoxide, peroxidation two t-amyl peroxy things, dicumyl peroxide or two kinds.
5. Synolac according to claim 1 is characterized in that: described dryness or semi-drying oleic acid are a kind of in soybean oleic acid, linolenic acid, linolic acid, Chinese catalpa oleic acid, eleostearic acid, dehydrated castor oleic acid, tall oil acid.
6. Synolac according to claim 1 is characterized in that: described polyvalent alcohol is a kind of in neopentyl glycol, TriMethylolPropane(TMP), tetramethylolmethane.
7. Synolac according to claim 1 is characterized in that: described polyprotonic acid is a kind of in Tetra hydro Phthalic anhydride, hexanodioic acid, m-phthalic acid, terephthalic acid or two kinds.
8. Synolac according to claim 1 is characterized in that: described thinner is a kind of in propylene-glycol ethyl ether, propandiol butyl ether, isopropylcarbinol, butanols, propylene glycol monomethyl ether or two kinds.
9. a method for preparing Synolac claimed in claim 1 is characterized in that comprising following steps:
A: prepare acrylic resin
A) by said ratio, vinyl monomer and initiator are joined respectively in the monomer dropping tank to control dropping tank temperature≤35 ℃;
B) solubility promoter is joined to reactor, start after vacuumizing to heat up;
C) start to drip monomer when temperature is raised to 140-180 ℃, drip off by insulation, cooling, discharge vacuum to normal pressure, filtration, obtain acrylic resin;
B: prepare epoxy resin and acrylic resin modified water-dispersion Synolac
A) by said ratio, steps A gained acrylic resin, epoxy resin, dryness or semi-drying oleic acid, dimethylol propionic acid, tertiary carbonic acid glycidyl ester, polyprotonic acid, polyvalent alcohol are added to reactor, pass into the nitrogen post-heating and heat up, stopped reaction when in reactor, the reactant acid value is 20-30mgKOH/g;
B), after vacuumizing and removing residual solvent, being diluted to non-volatile part of content with thinner is 75 ± 2%, obtains epoxy resin and acrylic resin modified water-dispersion Synolac of the present invention.
10. the application of epoxy resin and acrylic resin modified water-dispersion Synolac in the rust-inhibiting paint preparation that claim 1 is prepared.
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| CN103819987A (en) * | 2014-01-07 | 2014-05-28 | 江门市制漆厂有限公司 | Waterborne organic/inorganic hybrid plastic coating and preparation method thereof |
| CN103881547A (en) * | 2014-03-31 | 2014-06-25 | 浙江环球制漆集团股份有限公司 | Alkyd resin esterification wastewater applied to production of antirust paint after being processed, and method for production of antirust paint |
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