CN103421170B - Epoxy-acrylics modified water dispersible alkyd and Synthesis and applications thereof - Google Patents
Epoxy-acrylics modified water dispersible alkyd and Synthesis and applications thereof Download PDFInfo
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Abstract
The present invention relates to a kind of epoxy-acrylics modified water dispersible alkyd, 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, also provide its preparation method and the application in rust-inhibiting paint preparation thereof simultaneously.The present invention is by epoxy-acrylics modification and the method introducing a large amount of branched fatty acids on Synolac, greatly improve the anti-hydrolytic performance of Synolac in water, solve the problem that traditional water alcohol acid hydrolytic resistance is poor, its drying property, weather resistance and salt fog resistance have also been obtained and significantly improve simultaneously, also remain Synolac levelling property, application property, wettability, the good feature of snappiness.
Description
Technical field
The present invention relates to water-borne coatings field, be specifically related to a kind of epoxy-acrylics modified water dispersible alkyd and Synthesis and applications thereof.
Background technology
Oil paint can volatilize a large amount of objectionable impuritiess (VOC) in production and use procedure, brings a lot of negative impact, and drastically influence the health of the mankind to the environment of human lives.Along with people are to the pay attention to day by day of environment protection, the Water-borne modification of coating is the target that people constantly pursue.In addition, petroleum resources are Nonrenewable resources, along with constantly exploiting use, always having one day that exhausts, therefore in oil paint, using renewable resources raw material as far as possible, significant in the sustainability of resource.
Summary of the invention
One object of the present invention is to provide a kind of epoxy-acrylics modified water dispersible alkyd, can be used for the anticorrosion and decorative painting such as metal, bamboo and wood products after this resin is prepared into water-borne coatings.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of epoxy-acrylics modified water dispersible alkyd, 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, solubility promoter 400 parts, initiator 25-30 part; Wherein, described vinyl monomer is mixed by following two groups of materials:
A) one in vinylformic acid, methacrylic acid or two kinds;
B) in butyl acrylate, butyl methacrylate, Isooctyl acrylate monomer, methyl methacrylate, isobornyl methacrylate, lauryl methacrylate, cinnamic at least two kinds.
Described solubility promoter is the one in methyl iso-butyl ketone (MIBK), N-BUTYL ACETATE, 1-Methoxy-2-propyl acetate.
Described initiator is 3, one in 5,5-tri-methyl hexanoic acid t-butylperbenzoate, 2 ethyl hexanoic acid t-butylperbenzoate, peroxidized t-butyl perbenzoate, benzoyl peroxide, di-t-butyl peroxide superoxide, di t-amyl peroxide superoxide, dicumyl peroxide or two kinds.
Described dryness or semi-drying oleic acid are the one 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 the one in neopentyl glycol, TriMethylolPropane(TMP), tetramethylolmethane.
Described polyprotonic acid is one in Tetra hydro Phthalic anhydride, hexanodioic acid, m-phthalic acid, terephthalic acid or two kinds.
Described thinner is one 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 the preparation method providing above-mentioned epoxy-acrylics modified water dispersible alkyd.
Prepare a method for above-mentioned epoxy-acrylics modified water dispersible alkyd, comprise following steps:
A: prepare acrylic resin
A) by said ratio, vinyl monomer and initiator are joined in monomer dropping tank respectively, control to drip
Tank temperature≤35 DEG C;
B) solubility promoter is joined reactor, start after vacuumizing to heat up;
C) start to drip monomer when temperature is raised to 140-180 DEG C, the time for adding of monomer is 4-8h, through being incubated, lowering the temperature, discharge vacuum to normal pressure, filtration after dripping off, obtains acrylic resin;
B: prepare epoxy-acrylics modified water dispersible alkyd
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 reactor, pass into nitrogen post-heating to heat up, stopped reaction when reactant acid value is 20-30mgKOH/g in reactor;
B), after vacuumizing removing residual solvent, being diluted to non-volatile part content with thinner is 75 ± 2%, obtains epoxy-acrylics modified water dispersible alkyd of the present invention.
In the step a) of described step B, the process of heat temperature raising is preferably: within the time being no less than 1h, be warming up to 140 DEG C, insulation 2h; 160 DEG C are warming up to, insulation 3h within the time being no less than 0.5h; Within the time being no less than 0.5h, be warming up to 180 DEG C, being incubated reactant acid value to reactor is 20-30mgKOH/g.
Temperature of reaction controls to be in order to avoid there is gel phenomenon below 180 DEG C.
The present invention (introduces vinyl monomer as acrylic acid or the like and acrylic ester monomer by epoxy-acrylics modification, epoxy resin and tertiary carbonic acid glycidyl ester modification) and on Synolac, introduce the method for a large amount of branched fatty acids, greatly improve the anti-hydrolytic performance of epoxy-acrylics modified water dispersible alkyd in water, solve the problem that traditional water alcohol acid hydrolytic resistance is poor, its drying property simultaneously, weather resistance and salt fog resistance have also been obtained and significantly improve, also Synolac levelling property is remained, application property, wettability, the good feature of snappiness.
Meanwhile, epoxy-acrylics modified water dispersible alkyd of the present invention easily via the change kind of polyvalent alcohol and the consumption of unsaturated fatty acids, can change the oil content of modified water dispersible alkyd, thus reaches the object regulating paint film property.
In addition in preparation method, have employed pressure synthesis reaction method, because the boiling point of solvent under pressurised conditions improves, make synthesize this resinoid time liquid-phase reaction condition under selectable solvent species more, the size of reaction pressure can be set according to the height of solvent boiling point, it is little that obtained resin has molecular weight, and the characteristic that molecular weight distribution is narrower, solves the problem of excessive, the easy generation gel of modified water dispersible alkyd building-up process viscosity simultaneously.
Utilize epoxy-acrylics modified water dispersible alkyd of the present invention as base-material, a kind of epoxy-acrylics modified water dispersible alkyd rust-inhibiting paint can be obtained.Above-mentioned rust-inhibiting paint can adopt technology well known in the art to prepare, and wherein preferred preparation method is:
Composed of the following components by weight:
Epoxy-acrylics modified water dispersible alkyd 25 parts, dimethylethanolamine 1 part, deionized water 39 parts, dispersion agent 0.3 part, defoamer 0.1 part, red iron oxide 15 parts, process white 18 parts, strontium yellow 0.5 part, siccative 0.5 part, wetting agent 0.3 part, thickening material 0.3 part.
Said components epoxy resin-acrylic resin modified water dispersible alkyd, dimethylethanolamine, deionized water, dispersion agent, defoamer, red iron oxide, process white, strontium yellow are joined in dispersing apparatus successively, high speed dispersion 20min, then skin grinder is adopted to be dispersed to paint vehicle granularity≤30 μm, add wetting agent and thickening material, adjusting viscosity to 60-150 second/coating-4 viscosity meter .25 DEG C after filter, obtain epoxy-acrylics modified water dispersible alkyd rust-inhibiting paint.
The macromolecule product that above-mentioned rust-inhibiting paint adopts epoxy-acrylics and dryness or the modification of semi-drying oleic acid to obtain containing certain acid value, employing organic amine neutralizes, form organic ammonium salt, add water again and form water dispersion, can be cross-linked film forming in atmosphere after adding water-based siccative, gained paint film property is excellent.Owing to adopting water as dispersion medium, completely 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 oiliness alkydpaints; Gloss of film, fullness ratio aspect then oiliness alkydpaints are slightly better.But water-dispersion alkyd is modified compared with oiliness alkyd paint through epoxy resin and acrylic, water-fast and salt fog resistance significantly improves, hardness also comparatively oiliness alkyd paint also improve.Modified water dispersion alkydpaints not only in the feature of environmental protection comparatively oleic acid alkydpaints there is obvious advantage, as its barrier propterty of protective paint also comparatively oiliness alkyd paint be greatly improved, be the ideal substitute of oiliness alkyd as metal protection paint.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.
Embodiment 1
A: prepare acrylic resin
Methyl iso-butyl ketone (MIBK) 400 parts, methacrylic acid 200 parts, vinylbenzene 120 parts, Isooctyl acrylate monomer 180 parts, isobornyl methacrylate 70 parts, 2 ethyl hexanoic acid t-butylperbenzoate 20 parts, di-t-butyl peroxide superoxide 10 parts.
A) by said ratio, vinyl monomer and initiator are joined in monomer dropping tank respectively, stir, open and drip tank water coolant, control to drip tank temperature≤35 DEG C;
B) solubility promoter is joined reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, is then depressed into normal pressure again with nitrogen, then starts after vacuumizing to heat up;
C) start to drip monomer when temperature is raised to 170 DEG C, time for adding is 5h, and be incubated two hours at such a temperature, then cooling is started, when temperature drops to below 100 DEG C, emptying reacting kettle inner pressure, to normal pressure, filters with the filter bag of 10 microns or following specification, obtains acrylic resin;
B: prepare epoxy-acrylics modified water dispersible alkyd
E51 epoxy resin 80 parts, linolenic acid 235 parts, tertiary carbonic acid glycidyl ester (E-10) 60 parts, neopentyl glycol 45 parts, dimethylol propionic acid 20 parts, hexanodioic acid 120 parts, acrylic resin 205 parts, propandiol butyl ether 235 parts.
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 reactor, pass into nitrogen 20min post-heating to heat up, to be no less than in the 1h time, by temperature to 140 DEG C, insulation 2h.160 DEG C of insulation 3h are warming up within the time being no less than 0.5h.Within the time being no less than 0.5h, be warming up to 180 DEG C of insulations is 20-30mgKOH/g to reaction to reactant acid value in reactor;
B), after vacuumizing the remaining solubility promoter of removing, being diluted to non-volatile part content with propandiol butyl ether is 75 ± 2%, obtains epoxy-acrylics modified water dispersible alkyd of the present invention.
Embodiment 2
A: prepare acrylic resin
1-Methoxy-2-propyl acetate 400 parts, 155 parts, vinylformic acid, methyl methacrylate 230 parts, butyl methacrylate 120 parts, butyl acrylate 70 parts, benzoyl peroxide 15 parts, 3,5,5 Trimethylhexanoic acid t-butylperbenzoate 10 parts.
A) by said ratio, vinyl monomer and initiator are joined in monomer dropping tank respectively, stir, open and drip tank water coolant, control to drip tank temperature≤35 DEG C;
B) solubility promoter is joined reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, is then depressed into normal pressure again with nitrogen, then starts after vacuumizing to heat up;
C) start to drip monomer when temperature is raised to 150 DEG C, time for adding is 4h, and be incubated two hours at such a temperature, then cooling is started, when temperature drops to below 100 DEG C, emptying reacting kettle inner pressure, to normal pressure, filters with the filter bag of 10 microns or following specification, obtains acrylic resin;
B: prepare epoxy-acrylics modified water dispersible alkyd
E20 epoxy resin 100 parts, soybean oleic acid 210 parts, tertiary carbonic acid glycidyl ester (E-10) 50 parts, TriMethylolPropane(TMP) 50 parts, dimethylol propionic acid 20 parts, Tetra hydro Phthalic anhydride 95 parts, acrylic resin 220 parts, isopropylcarbinol 230 parts.
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 reactor, pass into nitrogen 20min post-heating to heat up, to be no less than in the 1h time, by temperature to 140 DEG C, insulation 2h.160 DEG C of insulation 3h are warming up within the time being no less than 0.5h.Within the time being no less than 0.5h, be warming up to 180 DEG C of insulations is 20-30mgKOH/g to reaction to reactant acid value in reactor;
B), after vacuumizing the remaining solubility promoter of removing, being diluted to non-volatile part content with isopropylcarbinol is 75 ± 2%, obtains epoxy-acrylics modified water dispersible alkyd of the present invention.
Embodiment 3
A: prepare acrylic resin
N-BUTYL ACETATE 400 parts, methacrylic acid 170 parts, 40 parts, vinylformic acid, vinylbenzene 180 parts, lauryl methacrylate(LMA) 130 parts, methyl methacrylate 50 parts, peroxidized t-butyl perbenzoate 15 parts, di t-amyl peroxide superoxide 10 parts.
A) by said ratio, vinyl monomer and initiator are joined in monomer dropping tank respectively, stir, open and drip tank water coolant, control to drip tank temperature≤35 DEG C;
B) solubility promoter is joined reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, is then depressed into normal pressure again with nitrogen, then starts after vacuumizing to heat up;
C) start to drip monomer when temperature is raised to 160 DEG C, time for adding is 6h, and be incubated two hours at such a temperature, then cooling is started, when temperature drops to below 100 DEG C, emptying reacting kettle inner pressure, to normal pressure, filters with the filter bag of 10 microns or following specification, obtains acrylic resin;
B: prepare epoxy-acrylics modified water dispersible alkyd
E12 epoxy resin 110 parts, eleostearic acid 220 parts, tertiary carbonic acid glycidyl ester (E-10) 50 parts, neopentyl glycol 52 parts, dimethylol propionic acid 10 parts, hexanodioic acid 58 parts, m-phthalic acid 70 parts, acrylic resin 180 parts, propylene glycol monomethyl ether 250 parts.
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 reactor, pass into nitrogen 20min post-heating to heat up, to be no less than in the 1h time, by temperature to 140 DEG C, insulation 2h.160 DEG C of insulation 3h are warming up within the time being no less than 0.5h.Within the time being no less than 0.5h, be warming up to 180 DEG C of insulations is 20-30mgKOH/g to reaction to reactant acid value in reactor;
B), after vacuumizing the remaining solubility promoter of removing, being diluted to non-volatile part content with propylene glycol monomethyl ether is 75 ± 2%, obtains epoxy-acrylics modified water dispersible alkyd of the present invention.
Embodiment 4
A: prepare acrylic resin
N-BUTYL ACETATE 400 parts, methacrylic acid 170 parts, isobornyl methacrylate 210 parts, Isooctyl acrylate monomer 140 parts, butyl methacrylate 50 parts, 2 ethyl hexanoic acid t-butylperbenzoate 15 parts, dicumyl peroxide 10 parts.
A) by said ratio, vinyl monomer and initiator are joined in monomer dropping tank respectively, stir, open and drip tank water coolant, control to drip tank temperature≤35 DEG C;
B) solubility promoter is joined reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, is then depressed into normal pressure again with nitrogen, then starts after vacuumizing to heat up;
C) start to drip monomer when temperature is raised to 155 DEG C, time for adding is 5.5h, and be incubated two hours at such a temperature, then cooling is started, when temperature drops to below 100 DEG C, emptying reacting kettle inner pressure, to normal pressure, filters with the filter bag of 10 microns or following specification, obtains acrylic resin;
B: prepare epoxy-acrylics modified water dispersible alkyd
E44 epoxy resin 150 parts, dehydrated castor oleic acid 210 parts, tertiary carbonic acid glycidyl ester (E-10) 60 parts, tetramethylolmethane 47 parts, dimethylol propionic acid 30 parts, terephthalic acid 100 parts, acrylic resin 168 parts, 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 reactor, pass into nitrogen 20min post-heating to heat up, to be no less than in the 1h time, by temperature to 140 DEG C, insulation 2h.160 DEG C of insulation 3h are warming up within the time being no less than 0.5h.Within the time being no less than 0.5h, be warming up to 180 DEG C of insulations is 20-30mgKOH/g to reaction to reactant acid value in reactor;
B), after vacuumizing the remaining solubility promoter of removing, being diluted to non-volatile part content with butanols is 75 ± 2%, obtains epoxy-acrylics modified water dispersible alkyd of the present invention.
Embodiment 5
A: prepare acrylic resin
Mibk 400 parts, 180 parts, vinylformic acid, methyl methacrylate 200 parts, Isooctyl acrylate monomer 140 parts, lauryl methacrylate(LMA) 50 parts, dicumyl peroxide 10 parts, 3,5,5 Trimethylhexanoic acid t-butylperbenzoate 20 parts.
A) by said ratio, vinyl monomer and initiator are joined in monomer dropping tank respectively, stir, open and drip tank water coolant, control to drip tank temperature≤35 DEG C;
B) solubility promoter is joined reactor, being evacuated to vacuum tightness is 0.07-0.09MPa, is then depressed into normal pressure again with nitrogen, then starts after vacuumizing to heat up;
C) start to drip monomer when temperature is raised to 140 DEG C, time for adding is 8h, and be incubated two hours at such a temperature, then cooling is started, when temperature drops to below 100 DEG C, emptying reacting kettle inner pressure, to normal pressure, filters with the filter bag of 10 microns or following specification, obtains acrylic resin;
B: prepare epoxy-acrylics modified water dispersible alkyd
E51 epoxy resin 70 parts, tall oil acid 220 parts, tertiary carbonic acid glycidyl ester (E-10) 50 parts, TriMethylolPropane(TMP) 52 parts, dimethylol propionic acid 19 parts, m-phthalic acid 49 parts, acrylic resin 300 parts, isopropylcarbinol 135 parts, propylene-glycol ethyl ether 100 parts.
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 reactor, pass into nitrogen 20min post-heating to heat up, to be no less than in the 1h time, by temperature to 140 DEG C, insulation 2h.160 DEG C of insulation 3h are warming up within the time being no less than 0.5h.Within the time being no less than 0.5h, be warming up to 180 DEG C of insulations is 20-30mgKOH/g to reaction to reactant acid value in reactor;
B), after vacuumizing the remaining solubility promoter of removing, being diluted to non-volatile part content with isopropylcarbinol, propylene-glycol ethyl ether is 75 ± 2%, obtains epoxy-acrylics modified water dispersible alkyd of the present invention.
The Application Example of epoxy-acrylics modified water dispersible alkyd of the present invention
Utilize a kind of epoxy-acrylics modified water dispersible alkyd rust-inhibiting paint that epoxy-acrylics modified water dispersible alkyd of the present invention is obtained, composed of the following components by weight:
Epoxy-acrylics modified water dispersible alkyd 25 parts, dimethylethanolamine 1 part, deionized water 39 parts, dispersion agent 0.3 part, defoamer 0.1 part, red iron oxide 15 parts, process white 18 parts, strontium yellow 0.5 part, siccative 0.5 part, wetting agent 0.3 part, thickening material 0.3 part.
Said components epoxy resin-acrylic resin modified water dispersible alkyd, dimethylethanolamine, deionized water, dispersion agent, defoamer, red iron oxide, process white, strontium yellow are joined in dispersing apparatus successively, high speed dispersion 20min, then skin grinder is adopted to be dispersed to paint vehicle granularity≤30 μm, add wetting agent and thickening material, adjusting viscosity to 60-150 second/coating-4 viscosity meter .25 DEG C after filter, obtain epoxy-acrylics modified water dispersible alkyd rust-inhibiting paint.
Performance test is carried out to above-mentioned gained rust-inhibiting paint as follows:
Above-mentioned gained rust-inhibiting paint deionized water is diluted to viscosity be 20-35 second/coating-4 viscosity meter .25 DEG C, then adopt have gas spray gun to be sprayed on tinplate.Leave standstill 10min after spray is good, put into after 60 DEG C of convection oven toast 30min, then put seasoning in atmosphere 7 days, carry out performance test evaluation to dried product, result is as shown in table 1 below.
Table 1 modified water dispersible alkyd rust-inhibiting paint the performance test results
| Modified water dispersion alkydpaints | Oiliness alkydpaints | |
| Film thickness/μm | 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 |
As can be seen from the test result of table 1, the rust-inhibiting paint made for base-material with modified water dispersion alkyd, its workability, outward appearance, sticking power, shock-resistance, paint film flexibility are suitable with oiliness alkydpaints; Gloss of film, fullness ratio aspect then oiliness alkydpaints are slightly better.But water-dispersion alkyd is modified compared with oiliness alkyd paint through epoxy resin and acrylic, water-fast and salt fog resistance significantly improves, hardness also comparatively oiliness alkyd paint also improve.Modified water dispersion alkydpaints not only in the feature of environmental protection comparatively oleic acid alkydpaints there is obvious advantage, as its barrier propterty of protective paint also comparatively oiliness alkyd paint be greatly improved, be the ideal substitute of oiliness alkyd as metal protection paint.
Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.After the content of having read the present invention's instruction, those skilled in the art can do various conversion or amendment with any same or similar means to the present invention, and these equivalent form of values fall within protection scope of the present invention equally.
Claims (10)
1. an epoxy-acrylics modified water dispersible alkyd, is characterized in that being 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.
2. Synolac according to claim 1, is characterized in that: described acrylic resin is obtained by following component reaction by weight: vinyl monomer 570-575 part, solubility promoter 400 parts, initiator 25-30 part; Wherein, described vinyl monomer is mixed by following two groups of materials:
A) one in vinylformic acid, methacrylic acid or two kinds;
B) at least two kinds in butyl acrylate, butyl methacrylate, Isooctyl acrylate monomer, methyl methacrylate, isobornyl methacrylate, lauryl methacrylate(LMA), vinylbenzene.
3. Synolac according to claim 2, is characterized in that: described solubility promoter is the one 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, one in 5,5-tri-methyl hexanoic acid t-butylperbenzoate, 2 ethyl hexanoic acid t-butylperbenzoate, peroxidized t-butyl perbenzoate, benzoyl peroxide, di-t-butyl peroxide superoxide, di t-amyl peroxide superoxide, dicumyl peroxide or two kinds.
5. Synolac according to claim 1, is characterized in that: described dryness or semi-drying oleic acid are the one 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 the one in neopentyl glycol, TriMethylolPropane(TMP), tetramethylolmethane.
7. Synolac according to claim 1, is characterized in that: described polyprotonic acid is one 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 one in propylene-glycol ethyl ether, propandiol butyl ether, isopropylcarbinol, butanols, propylene glycol monomethyl ether or two kinds.
9. prepare a method for Synolac according to claim 2, it is characterized in that comprising following steps:
A: prepare acrylic resin
A) by proportioning, vinyl monomer and initiator are joined in monomer dropping tank respectively, control to drip tank temperature≤35 DEG C;
B) solubility promoter is joined reactor, start after vacuumizing to heat up;
C) start when temperature is raised to 140-180 DEG C to drip the vinyl monomer in monomer dropping tank and initiator mixture, through being incubated, lowering the temperature, discharge vacuum to normal pressure, filtration after dripping off, obtain acrylic resin;
B: prepare epoxy-acrylics modified water dispersible alkyd
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 reactor, pass into nitrogen post-heating to heat up, stopped reaction when reactant acid value is 20-30mgKOH/g in reactor;
B), after vacuumizing removing residual solvent, being diluted to non-volatile part content with thinner is 75 ± 2%, obtains epoxy-acrylics modified water dispersible alkyd.
10. the application of epoxy-acrylics modified water dispersible alkyd according to claim 1 in rust-inhibiting paint preparation.
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