CN106398474B - A kind of coating and preparation method thereof of low VOC emission - Google Patents
A kind of coating and preparation method thereof of low VOC emission Download PDFInfo
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- CN106398474B CN106398474B CN201610870000.6A CN201610870000A CN106398474B CN 106398474 B CN106398474 B CN 106398474B CN 201610870000 A CN201610870000 A CN 201610870000A CN 106398474 B CN106398474 B CN 106398474B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/04—Epoxynovolacs
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- Adhesives Or Adhesive Processes (AREA)
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Abstract
The invention discloses a kind of coating and preparation method thereof of low VOC emission, belong to chemistry painting industry processing technique field.A kind of coating of low VOC emission is prepared: 30-40 parts of modified vinyl resin solution, 1-10 parts of light curing agent, 10-15 parts of modified montmorillonoid, 15-20 parts of filler, 30-40 parts of epoxy resin, 1-5 parts of maleic anhydride and 0.01-0.1 parts of promotor in a solvent by the component dissolution of following parts by weight；The present invention is dissolved in styrene monomer with hydroxyvinyl resin, diisocyanate and the polyalcohol of low viscosity and prepares the excessive modified vinyl resin of hydroxyl, coating is prepared with modified vinyl resin and epoxy resin, it can be prepared into the coating of high solids content, styrene can not only be used for solvent but also as the crosslinking agent of vinylite, the coating coating of preparation is good, coating performance after solidification is excellent, and VOC emission is substantially reduced, and can be widely used for the bonding of a variety of materials.
Description
[technical field]
The present invention relates to chemistry painting industry processing technique fields, and in particular to a kind of coating of low VOC emission and its preparation side
Method
[background technique]
China is usually by any organic compound of the boiling point no more than 250 DEG C is all defined as waving under normal pressure in coating products
Hair property organic compound (VOC), coating and adhesive are widely used in industry and life, the encapsulation and room such as electronic device
Room finishing etc., and a large amount of solvents are often used in adhesive and coating, diluting effect is mainly played, in process a large amount of discharges
It into air, pollutes, remaining solvent constantly evaporates in use, causes VOC exceeded, influences the strong of people
Health.
In order to reduce VOC emission, generally by prepare water paint, improve coating solids and using reactive monomer as
The mode of solvent.Vinylite has high reactivity, vinylite is photosensitive material since its double bond is in the end of the chain
Material, under photoinitiator effect can rapid curing, condition of cure is mild, and curing efficiency is high, and the diluent in photosensitive resin participates in
Into curing reaction, the discharge of VOC is effectively reduced, the corrosion resistance of coating of the low VOC emission of preparation is splendid.Epoxy resin preparation
Coating cementability it is good, shrinking percentage is low, dimensionally stable, excellent electrical properties, resistant to chemical media, configuration be easy, simple process, use
Temperature is broad, adaptability is relatively strong, toxicity is very low, harm is also small, free from environmental pollution etc., all has good gluing to multiple material
Ability, there are also a variety of functions, referred to as all-purpose adhesive such as sealing, insulation, leakproof, fixation, anti-corrosion, decoration.
[summary of the invention]
It is an object of the invention to: in view of the above problems, provide coating and its preparation side of a kind of low VOC emission
Method, the present invention is dissolved in styrene cross-linking monomer with hydroxyvinyl resin, isocyanates and polyalcohol prepares hydroxyl excess
Modified vinyl resin, using modified vinyl resin and epoxy resin as matrix resin, with double bond containing maleic anhydride work
For epoxy curing agent and light curing agent is added；The viscosity of the coating of preparation is low, and solid content is big, can meet coating coating and require；
By illumination and heating when use, double-bond polymerization and epoxy resin cure can be caused, after coating is coated to material surface, had good
Toughness well, splendid chemical corrosion resistance and cementability, can be extensively with coated on a variety of materials surface.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of coating of low VOC emission is prepared: ethene improved in a solvent by the component dissolution of following parts by weight
30-40 parts of base resin solution, 1-10 parts of light curing agent, 10-15 parts of modified montmorillonoid, 15-20 parts of filler, epoxy resin 30-40
Part, 1-5 parts of maleic anhydride and 0.01-0.1 parts of promotor；The solid content of the coating of the low VOC emission is 65-70%.
The modified vinyl resin solution is dissolved in styrene by diisocyanate, hydroxyvinyl resin and polyalcohol
In be prepared；The hydroxyl of the isocyanate group of the diisocyanate, the hydroxyl of hydroxyvinyl resin and polyalcohol rubs
You are than being 1:0.55-0.60:0.5-0.55；The mass concentration of the modified vinyl resin solution is 65-75%.
The modified montmorillonoid is quaternary ammonium salt modified montmorillonoid, including modified cover of dodecyl dimethyl benzyl ammonium bromide takes off
Soil, tetradecyl dimethyl benzyl ammonium modified montmorillonoid, cetyl pyridinium bromide modified montmorillonoid or double brominations 14
One or more of alkyl dimethyl ammonium modified montmorillonoid.
The solvent is one or more of styrene, butanone, dimethyl acetamide and dimethylformamide
Composition.
The filler is the composition of one or more of titanium dioxide, aluminium hydroxide and aluminium oxide.
The epoxy resin is bisphenol A type epoxy resin and/or phenol aldehyde type epoxy resin.
The hydroxyvinyl resin is the one or two of hydroxyethyl methacrylate and hydroxy butyl vinyl ether；It is described
Diisocyanate is one of hexamethylene diisocyanate, '-diphenylmethane diisocyanate and toluene di-isocyanate(TDI) or two
Kind or more composition；The polyalcohol is polyester polyol and/or polyether polyol.
The light curing agent is free radical photo-initiation, including 2- hydroxy-2-methyl -1- phenylacetone, 1- hydroxy cyclohexylphenyl
Base phenyl ketone, 2- methyl -2- (4- morpholinyl) -1- [4- (methyl mercapto) phenyl] -1- acetone, 2,4,6- trimethylbenzoyl
Base-diphenyl phosphine oxide, 2,4,6- trimethylbenzoyl phenyl phosphinic acid ethyl ester, 2- dimethylamino -2- benzyl -1- [4- (4-
Quinoline base) phenyl] one of -1- butanone and 2- hydroxy-2-methyl -1- [4- (2- hydroxyl-oxethyl) phenyl] -1- acetone or two
Kind or more composition；The promotor is 2-methylimidazole, 2- ethyl, 4-methylimidazole, 2- phenylimidazole and 2- phenyl, 4-
The composition of one or more of methylimidazole.
The present invention also provides a kind of preparation methods of the coating of low VOC emission, include the following steps:
(1) diisocyanate is dissolved in styrene, oil bath is warming up to 60-80 DEG C, and hydroxy vinyl is added dropwise in heating
Base resin continues stirring 3-4 hours after being added dropwise, polyalcohol is added, and continues stirring 1-2 hours, and being made into mass fraction is 65-
75% solution, as modified vinyl resin solution, the isocyanate group of the diisocyanate, hydroxyvinyl resin
The molar ratio of the hydroxyl of hydroxyl and polyalcohol is 1:0.55-0.60:0.5-0.55；
(2) by 30-40 parts of epoxy resin, 1-5 parts of maleic anhydrides, 0.01-0.1 parts of promotors, 30-40 parts of modified vinyls
Resin solution, 1-10 part photo solidification machine, 10-15 parts of modified montmorillonoids, 15-20 parts of fillers are dissolved in solvent, stir at normal temperature
It is uniformly mixed, is made into the glue that mass fraction is 65-70%, the coating of low VOC emission as of the invention.
On the surface of the material by the coating of the coating of the low VOC emission, after irradiating 5-20 seconds under ultraviolet light, then by material
1-2 hour is toasted in 80-120 DEG C, can be obtained the coating of optimum performance.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are: the present invention passes through with hydroxyl second
Ene based resins, diisocyanate and polyalcohol, which are dissolved in styrene monomer, prepares the excessive modified vinyl resin of hydroxyl, benefit
In the storage of modifying agent, while excessive hydroxyl has certain facilitation to anhydride-cured epoxy；With modified vinyl resin
Coating is prepared with epoxy resin, under illumination and heating condition, double bond and epoxy reaction realize solidification, the tree that the present invention uses
Fat raw material viscosity is lower, can be prepared into the coating of high solids content, while the solvent in system is mainly styrene, in styrene
Double bond may participate in reaction, the VOC emission amount after effectively reducing reaction；It is matrix tree by modified vinyl resin and epoxy resin
Rouge, is added light curing agent and maleic anhydride solidifies system, and the coating paintability of preparation is excellent, has after solidification splendid
Cementability and corrosion resistance, can be widely used for the bonding of a variety of materials.
[specific embodiment]
Make the explanation of further progress to technical solution of the present invention combined with specific embodiments below.
Comparative example 1
By 40 parts of bisphenol A type epoxy resins, 2 parts of maleic anhydrides, 0.02 part of methylimidazole, 30 parts of nitrile rubbers, 15 parts
Dodecyl dimethyl benzyl ammonium bromide modified montmorillonoid, 20 parts of aluminium hydroxides are dissolved in butanone, are stirred at normal temperature
Uniformly, the solution that mass fraction is 60% is made into get the coating of comparative example of the present invention.
After the coating is coated in copper surface, is toasted 3 hours at 80 DEG C, can be obtained the coating of optimum performance.
Embodiment 1
(1) toluene di-isocyanate(TDI) is dissolved in styrene, oil bath is warming up to 60 DEG C, and metering system is added dropwise in heating
Sour hydroxyl ethyl ester resin continues stirring 4 hours after being added dropwise, polyester polyol is added, and continues stirring 2 hours, is made into quality point
The solution that number is 75%, as modified vinyl resin solution, the isocyanate group of the toluene di-isocyanate(TDI), metering system
The molar ratio of the hydroxyl of the hydroxyl and polyester polyol of sour hydroxyl ethyl ester resin is 1:0.55:0.55；
(2) by 40 parts of bisphenol A type epoxy resins, 5 parts of maleic anhydrides, 0.1 part of methylimidazole, 30 parts of modified vinyl trees
Lipoprotein solution, 1 part of 2- hydroxy-2-methyl -1- phenylacetone, 15 parts of dodecyl dimethyl benzyl ammonium bromide modified montmorillonoids, 20
Part aluminium hydroxide is dissolved in butanone, is uniformly mixed at normal temperature, and the glue that mass fraction is 70%, as this hair are made into
The coating of bright low VOC emission.
After the coating of the low VOC emission is coated in copper surface, irradiates 20 seconds, material exists under ultraviolet light then
2 hours are toasted in 80 DEG C, can be obtained the coating of optimum performance.
Comparative example 2
(1) hexamethylene diisocyanate is dissolved in styrene, oil bath is warming up to 80 DEG C, and methyl is added dropwise in heating
The 1:1 composition of hydroxy-ethyl acrylate and hydroxy butyl vinyl ether resin continues stirring 3 hours after being added dropwise, polyethers is added
Polyalcohol continues stirring 1 hour, is made into the solution that mass fraction is 65%, as modified vinyl resin solution, and described six is sub-
The isocyanate group of methyl diisocyanate, the hydroxyl of hydroxyethyl methacrylate and hydroxy butyl vinyl ether hybrid resin and poly-
The molar ratio of the hydroxyl of ethoxylated polyhydric alcohol is 1:0.5:0.4；
(2) by 30 parts of phenol aldehyde type epoxy resins, 1 part of maleic anhydride, 0.01 part of 2- ethyl, 4-methylimidazole, 40 parts of modifications
Vinylite solution, 10 parts of 1- hydroxycyclohexyl phenyl ketones, modified cover of 10 parts of tetradecyl dimethyl benzyl ammoniums take off
Soil, 20 parts of titanium dioxide are dissolved in solvent, are uniformly mixed at normal temperature, are made into the glue that mass fraction is 65%, as
The coating of comparative example of the present invention.
After the coating is coated in wood surface, irradiates 5 seconds, then dry material in 120 DEG C under ultraviolet light
1.5 hours are baked, can be obtained the coating of optimum performance.
Embodiment 2
(1) hexamethylene diisocyanate is dissolved in styrene, oil bath is warming up to 80 DEG C, and methyl is added dropwise in heating
The 1:1 composition of hydroxy-ethyl acrylate and hydroxy butyl vinyl ether resin continues stirring 3 hours after being added dropwise, polyethers is added
Polyalcohol continues stirring 1 hour, is made into the solution that mass fraction is 65%, as modified vinyl resin solution, and described six is sub-
The isocyanate group of methyl diisocyanate, the hydroxyl of hydroxyethyl methacrylate and hydroxy butyl vinyl ether hybrid resin and poly-
The molar ratio of the hydroxyl of ethoxylated polyhydric alcohol is 1:0.60:0.5；
(2) by 30 parts of phenol aldehyde type epoxy resins, 1 part of maleic anhydride, 0.01 part of 2- ethyl, 4-methylimidazole, 40 parts of modifications
Vinylite solution, 10 parts of 1- hydroxycyclohexyl phenyl ketones, modified cover of 10 parts of tetradecyl dimethyl benzyl ammoniums take off
Soil, 20 parts of titanium dioxide are dissolved in solvent, are uniformly mixed at normal temperature, are made into the glue that mass fraction is 65%, as
The coating of the low VOC emission of the embodiment of the present invention.
After the coating of the low VOC emission is coated in wood surface, irradiate 5 seconds under ultraviolet light, then by material
1 hour is toasted in 120 DEG C, can be obtained the coating of optimum performance.
Comparative example 3
(1) '-diphenylmethane diisocyanate is dissolved in styrene, oil bath is warming up to 70 DEG C, and hydroxyl fourth is added dropwise in heating
Base vinyl ether resin continues stirring 4 hours after being added dropwise, be made into the solution that mass fraction is 70%, as ethene improved
Base resin solution, the isocyanate group of the '-diphenylmethane diisocyanate and the hydroxyl of hydroxy butyl vinyl ether resin are 1:
1.05；
(2) by 35 parts of phenol aldehyde type epoxy resins, 4 parts of maleic anhydrides, 0.05 part of 2- phenyl, 4-methylimidazole, 35 parts of modifications
8 parts of 2,4,6- trimethylbenzoy-dipheny phosphine oxides of vinylite solution, the modified illiteracy of 13 parts of cetyl pyridinium bromides
De- soil, 17 parts of aluminum oxides are dissolved in dimethylformamide, are uniformly mixed at normal temperature, being made into mass fraction is
67% glue, the coating of comparative example as of the present invention.
After the coating is coated in iron surface, irradiates 15 seconds, then toast material in 110 DEG C under ultraviolet light
1.5 hours, it can be obtained the coating of optimum performance.
Embodiment 3
(1) '-diphenylmethane diisocyanate is dissolved in styrene, oil bath is warming up to 70 DEG C, and hydroxyl fourth is added dropwise in heating
Base vinyl ether resin continues stirring 3 hours after being added dropwise, polyether polyol is added, and continues stirring 2 hours, is made into quality
The solution that score is 70%, as modified vinyl resin solution, the isocyanate group of the '-diphenylmethane diisocyanate, hydroxyl
The molar ratio of the hydroxyl of the hydroxyl and polyether polyol of butyl vinyl ether resin is 1:0.55:0.5；
(2) by 35 parts of phenol aldehyde type epoxy resins, 4 parts of maleic anhydrides, 0.05 part of 2- phenyl, 4-methylimidazole, 35 parts of modifications
8 parts of 2,4,6- trimethylbenzoy-dipheny phosphine oxides of vinylite solution, the modified illiteracy of 13 parts of cetyl pyridinium bromides
De- soil, 17 parts of aluminum oxides are dissolved in dimethylformamide, are uniformly mixed at normal temperature, being made into mass fraction is
67% glue, the as coating of the low VOC emission of the embodiment of the present invention.
After the coating of the low VOC emission is coated in iron surface, irradiates 15 seconds, material exists under ultraviolet light then
1.5 hours are toasted in 110 DEG C, can be obtained the coating of optimum performance.
The coating prepared respectively with various embodiments of the present invention and comparative example, prepares its performance of sample test, performance test knot
Fruit is as shown in table 1.
Performance test includes that modified vinyl resin storage characteristics, cementability test, corrosion resistance test and VOC emission measure
Examination, test method difference are as follows:
(1) modified vinyl resin storage characteristics test method is the placement of room temperature lower open mouth；
(2) condition of cure refers to that coating obtains baking temperature and the time of optimum performance coating by baking
(3) cementability test method is that coating is coated on overlay, film is pressed on copper foil, through ultraviolet light
Illumination and baking-curing test its tearing strength afterwards completely；
(4) elongation at break test method is that material is prepared into film, and after curing completely tests its elongation at break；
(5) corrosion resistance test method is that coating is coated in copper foil surface, is sufficiently immersed in 2mol/L after solidification
HCl and NaOH solution in, respectively impregnate 1 month after, observe its appearance；
(6) VOC emission amount test method according to EPA 8260C (the GC-MS detection method of volatile organic compounds) into
Row detection.
Table 1: the coating property test result of the modifying agent and low VOC emission of the embodiment of the present invention and comparative example preparation
The result shows that, the storage that the excessive modified vinyl resin of hydroxyl is conducive to modifying agent is prepared by above-mentioned contrast test
It deposits while having facilitation to the solidification of coating；Coating adhesive property prepared by the present invention is excellent, has good toughness and pole
Good corrosion resistance, VOC emission amount are significantly lower than comparative example.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (7)
1. a kind of coating of low VOC emission, which is characterized in that by following parts by weight component dissolution prepare in a solvent and
At: 30-40 parts of modified vinyl resin solution, 1-10 parts of light curing agent, 10-15 parts of modified montmorillonoid, 15-20 parts of filler, ring
30-40 parts of oxygen resin, 1-5 parts of maleic anhydride and 0.01-0.1 parts of promotor；The solid content degree of the coating of the low VOC emission is
65-70%；
The modified vinyl resin solution is dissolved in styrene and is made by diisocyanate, hydroxyvinyl resin and polyalcohol
It is standby to form；The molar ratio of the hydroxyl of the isocyanate group of the diisocyanate, the hydroxyl of hydroxyvinyl resin and polyalcohol
For 1:0.55-0.60:0.5-0.55；The mass concentration of the modified vinyl resin solution is 65-75%；
The solvent is the combination of one or more of styrene, butanone, dimethyl acetamide and dimethylformamide
Object.
2. the coating of low VOC emission according to claim 1, which is characterized in that the modified montmorillonoid changes for quaternary ammonium salt
Property montmorillonite, specially dodecyl dimethyl benzyl ammonium bromide modified montmorillonoid, tetradecyl dimethyl benzyl ammonium change
In property montmorillonite, cetyl pyridinium bromide modified montmorillonoid or double bromination dodecyldimethylamine base ethyl ammonium modified montmorillonoids
It is one or more kinds of.
3. the coating of low VOC emission according to claim 1, which is characterized in that the filler is titanium dioxide, hydroxide
The composition of one or more of aluminium and aluminium oxide.
4. the coating of low VOC emission according to claim 1, which is characterized in that the epoxy resin is bisphenol type epoxy
Resin and/or phenol aldehyde type epoxy resin.
5. the coating of low VOC emission according to claim 1, which is characterized in that the hydroxyvinyl resin is methyl
Hydroxy-ethyl acrylate and/or hydroxy butyl vinyl ether；The diisocyanate is hexamethylene diisocyanate, diphenyl-methane two
The composition of one or more of isocyanates and toluene di-isocyanate(TDI)；The polyalcohol be polyester polyols it is pure and mild/
Or polyether polyol.
6. the coating of low VOC emission according to claim 1, which is characterized in that the light curing agent is that free radical light draws
Send out agent, specially 2- hydroxy-2-methyl -1- phenylacetone, 1- hydroxycyclohexyl phenyl ketone, 2- methyl -2- (4- morpholinyl) -
1- [4- (methyl mercapto) phenyl] -1- acetone, 2,4,6- trimethylbenzoy-dipheny phosphine oxide, 2,4,6- trimethylbenzene first
Aminosulfonylphenyl phosphinic acid ethyl ester, 2- dimethylamino -2- benzyl -1- [4- (4- morpholinyl) phenyl] -1- butanone and 2- hydroxyl -2- first
The composition of one or more of base -1- [4- (2- hydroxyl-oxethyl) phenyl] -1- acetone；The promotor is 2- first
The group of one or more of base imidazoles, 2-ethyl-4-methylimidazole, 2- phenylimidazole and 2- phenyl -4-methylimidazole
Close object.
7. a kind of preparation method of the coating of low VOC emission as claimed in any one of claims 1 to 6, which is characterized in that including such as
Lower step:
(1) diisocyanate is dissolved in styrene, oil bath is warming up to 60-80 DEG C, and hydroxyvinyl tree is added dropwise in heating
Rouge continues stirring 3-4 hours after being added dropwise, polyalcohol is added, and continues stirring 1-2 hours, and being made into mass fraction is 65-75%
Solution, as modified vinyl resin solution, the hydroxyl of the isocyanate group of the diisocyanate, hydroxyvinyl resin
Molar ratio with the hydroxyl of polyalcohol is 1:0.55-0.60:0.5-0.55；
(2) by 30-40 parts of epoxy resin, 1-5 parts of maleic anhydrides, 0.01-0.1 parts of promotors, 30-40 parts of modified vinyl resins
Solution, 1-10 part light curing agent, 10-15 parts of modified montmorillonoids, 15-20 parts of fillers are dissolved in solvent, are stirred at normal temperature
Uniformly, the glue that mass fraction is 65-70%, the coating of the as described low VOC emission are made into.
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| EP1045009A1 (en) * | 1999-04-16 | 2000-10-18 | Dow Corning Corporation | Heat curable silcone acrylate coating compositions |
| CN101638464A (en) * | 2009-09-01 | 2010-02-03 | 陕西科技大学 | Method for preparing polyurethane-polyacrylic ester microemulsion |
| CN103172801A (en) * | 2013-02-04 | 2013-06-26 | 太原理工大学 | Preparation method of polyurethane/styrene elastomer composite material |
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