CN106398474A - Coating with low VOC (volatile organic compound) emission and method for preparing coating - Google Patents
Coating with low VOC (volatile organic compound) emission and method for preparing coating Download PDFInfo
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- CN106398474A CN106398474A CN201610870000.6A CN201610870000A CN106398474A CN 106398474 A CN106398474 A CN 106398474A CN 201610870000 A CN201610870000 A CN 201610870000A CN 106398474 A CN106398474 A CN 106398474A
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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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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
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- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses coating with low VOC (volatile organic compound) emission and a method for preparing the coating, and belongs to the field of technologies for processing chemical coating. The coating with the low VOC emission comprises components including, by weight, 30-40 parts of modified vinyl resin solution, 1-10 parts of light curing agents, 10-15 parts of modified montmorillonite, 15-20 parts of fillers, 30-40 parts of epoxy resin, 1-5 parts of maleic anhydride and 0.01-0.1 part of accelerators. The components are dissolved in a solvent to obtain the coating. The coating and the method have the advantages that low-viscosity hydroxyl vinyl resin, diisocyanate and polyols are dissolved in styrene monomers to prepare modified vinyl resin with excessive hydroxyl, and the coating with a high solid content can be prepared from the modified vinyl resin and the epoxy resin; styrene not only can be used as the solvent, but also can be used as a cross-linking agent for the vinyl resin, accordingly, the coating prepared by the aid of the method is good in coating property, cured coatings are excellent in performance, the VOC emission can be obviously lowered, and the coating can be widely applied to adhering various materials.
Description
【Technical field】
The present invention relates to chemistry painting industry processing technique field is and in particular to a kind of coating of low VOC emission and its preparation side
Method
【Background technology】
China generally by coating products at ambient pressure boiling point be not more than 250 DEG C of any organic compound and be all defined as waving
The property sent out organic compound (VOC), coating and adhesive are widely used in industry and life, such as the encapsulation of electronic device and room
Room finishing etc., and often using a large amount of solvents in adhesive and coating, act primarily as diluting effect, discharge in a large number in process
To in the air, pollute, the solvent remaining in use constantly evaporates, cause VOC exceeded, impact people's is strong
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, because its double bond is in the end of the chain, has high reactivity, and vinylite is photosensitive material
Material, under light trigger effect can rapid curing, condition of cure is gentle, and curing efficiency is high, and the diluent in photosensitive resin participates in
To in curing reaction, effectively reduce the discharge of VOC, the corrosion resistance of coating of the low VOC emission of preparation is splendid.Prepared by epoxy resin
Coating cementability good, shrinkage factor is low, dimensionally stable, excellent electrical properties, resistant to chemical media, configuration easily, process is simple, use
Temperature is broad, adaptability is relatively strong, toxicity is very low, harm is also little, free from environmental pollution etc., multiple material is all had good gluing
Ability, also multiple functions such as sealing, insulation, leakproof, fixation, anti-corrosion, decoration, are referred to as all-purpose adhesive.
【Content of the invention】
It is an object of the invention to：For above-mentioned problem, provide a kind of coating of low VOC emission and its preparation side
Method, the present invention is dissolved in styrene cross-linking monomer with hydroxyvinyl resin, isocyanates and polyalcohol and prepares hydroxyl excessively
Modified vinyl resin, using modified vinyl resin and epoxy resin as matrix resin, made with double bond containing maleic anhydride
For epoxy curing agent and add light curing agent；The dope viscosity of preparation is low, and solid content is big, can meet coating coating and require；
Pass through illumination and heating during use, double-bond polymerization and epoxy resin cure can be caused, after coating is coated to material surface, have good
Toughness well, splendid chemical resistance and cementability, can be extensively with being coated on various material surfaces.
To achieve these goals, the technical solution used in the present invention is as follows：
A kind of coating of low VOC emission, is prepared from a solvent by the component dissolving of following parts by weight：Ethene improved
Base resin solution 30-40 part, light curing agent 1-10 part, modified montmorillonoid 10-15 part, filler 15-20 part, epoxy resin 30-40
Part, maleic anhydride 1-5 part and accelerator 0.01-0.1 part；The solid content of the coating of described low VOC emission is 65-70%.
Described modified vinyl resin solution is dissolved in styrene by diisocyanate, hydroxyvinyl resin and polyalcohol
In be prepared from；The rubbing of the hydroxyl of the NCO of described diisocyanate, the hydroxyl of hydroxyvinyl resin and polyalcohol
That ratio is 1：0.55-0.60:0.5-0.55；The mass concentration of described modified vinyl resin solution is 65-75%.
Described modified montmorillonoid is quaternary ammonium salt modified montmorillonoid, takes off including modified illiteracy of dodecyl dimethyl benzyl ammonium bromide
Soil, tetradecyl dimethyl benzyl ammonium modified montmorillonoid, cetyl pyridinium bromide modified montmorillonoid or double bromination 14
One of alkyl dimethyl ammonium modified montmorillonoid or two or more.
Described solvent is one of styrene, butanone, dimethylacetylamide and dimethylformamide or two or more
Composition.
Described filler is one of titanium dioxide, aluminium hydroxide and aluminum oxide or two or more compositions.
Described epoxy resin is bisphenol A type epoxy resin and/or phenol aldehyde type epoxy resin.
Described hydroxyvinyl resin is one or two of hydroxyethyl methacrylate and hydroxy butyl vinyl ether；Described
Diisocyanate is one of hexamethylene diisocyanate, '-diphenylmethane diisocyanate and toluene di-isocyanate(TDI) or two
Plant above composition；Described polyalcohol is PEPA and/or PPG.
Described 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
Plant above composition；Described accelerator is 2-methylimidazole, 2- ethyl, 4-methylimidazole, 2- phenylimidazole and 2- phenyl, 4-
One of methylimidazole or two or more compositions.
Present invention also offers a kind of preparation method of the coating of described low VOC emission, comprise the steps：
(1) diisocyanate is dissolved in styrene, oil bath is warming up to 60-80 DEG C, drips hydroxy vinyl in intensification
Base resin, continues stirring 3-4 hour, adds polyalcohol after completion of dropping, continue stirring 1-2 hour, and being made into mass fraction is 65-
75% solution, as modified vinyl resin solution, the NCO of described diisocyanate, hydroxyvinyl resin
The mol ratio of the hydroxyl of hydroxyl and polyalcohol is 1：0.55-0.60:0.5-0.55；
(2) by 30-40 part epoxy resin, 1-5 part maleic anhydride, 0.01-0.1 part accelerator, 30-40 part modified vinyl
Resin solution, 1-10 part photo solidification machine, 10-15 part modified montmorillonoid, 15-20 part filler are dissolved in solvent, stir at normal temperatures
Mix, be made into the glue that mass fraction is 65-70%, the as coating of the low VOC emission of the present invention.
The coating of described low VOC emission is coated in material surface, after irradiating 5-20 second under ultraviolet light, then by material
Toast 1-2 hour in 80-120 DEG C, you can obtain the coating of optimum performance.
In sum, due to employing technique scheme, the invention has the beneficial effects as follows：The present invention passes through with hydroxyl second
Ene based resins, diisocyanate and polyalcohol are dissolved in prepares the excessive modified vinyl resin of hydroxyl, profit in styrene monomer
In the storage of modifying agent, excessive hydroxyl has certain facilitation to anhydride-cured epoxy simultaneously；With modified vinyl resin
Prepare coating 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 relatively low, can be prepared into the coating of high solids content, and the solvent in system is mainly styrene simultaneously, in styrene
Double bond may participate in reaction, effectively reduces reacted VOC emission amount；Modified vinyl resin and epoxy resin are matrix tree
Fat, adds light curing agent and maleic anhydride that system is solidified, the coating paintability of preparation is excellent, has splendid after solidification
Cementability and decay resistance, can be widely used for the bonding of various materials.
【Specific embodiment】
With reference to specific embodiment, technical scheme is made with the explanation carrying out further.
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, at normal temperatures stirring mixing
Uniformly, it is made into the solution that mass fraction is 60%, obtain final product the coating of comparative example of the present invention.
Described coating is coated in behind copper surface, toasts 3 hours at 80 DEG C, you can obtain 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, drips metering system in intensification
Sour hydroxyl ethyl ester resin, continues stirring 4 hours after completion of dropping, adds PEPA, continues stirring 2 hours, is made into quality and divides
The solution for 75% for the number, as modified vinyl resin solution, the NCO of described toluene di-isocyanate(TDI), metering system
The mol ratio of the hydroxyl of the hydroxyl of sour hydroxyl ethyl ester resin and PEPA 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 temperatures, is made into the glue that mass fraction is 70%, is this
The coating of bright low VOC emission.
The coating of described low VOC emission is coated in behind copper surface, irradiates 20 seconds under ultraviolet light, then material exists
2 hours are toasted, you can obtain the coating of optimum performance in 80 DEG C.
Comparative example 2
(1) hexamethylene diisocyanate is dissolved in styrene, oil bath is warming up to 80 DEG C, drips methyl in intensification
Hydroxy-ethyl acrylate and the 1 of hydroxy butyl vinyl ether resin:1 composition, continues stirring 3 hours after completion of dropping, adds polyethers
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 hydroxyl of the NCO of methyl diisocyanate, hydroxyethyl methacrylate and hydroxy butyl vinyl ether hybrid resin and poly-
The mol 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 ketone, 10 parts of modified illiteracies of tetradecyl dimethyl benzyl ammonium take off
Soil, 20 parts of titanium dioxide are dissolved in solvent, are uniformly mixed at normal temperatures, are made into the glue that mass fraction is 65%, as
The coating of comparative example of the present invention.
Described coating is coated in after wood surface, irradiates 5 seconds under ultraviolet light, then material is dried in 120 DEG C
Roasting 1.5 hours, you can obtain the coating of optimum performance.
Embodiment 2
(1) hexamethylene diisocyanate is dissolved in styrene, oil bath is warming up to 80 DEG C, drips methyl in intensification
Hydroxy-ethyl acrylate and the 1 of hydroxy butyl vinyl ether resin:1 composition, continues stirring 3 hours after completion of dropping, adds polyethers
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 hydroxyl of the NCO of methyl diisocyanate, hydroxyethyl methacrylate and hydroxy butyl vinyl ether hybrid resin and poly-
The mol 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 ketone, 10 parts of modified illiteracies of tetradecyl dimethyl benzyl ammonium take off
Soil, 20 parts of titanium dioxide are dissolved in solvent, are uniformly mixed at normal temperatures, 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.
The coating of described low VOC emission is coated in after wood surface, irradiates 5 seconds under ultraviolet light, then by material
Toast 1 hour in 120 DEG C, you can obtain the coating of optimum performance.
Comparative example 3
(1) '-diphenylmethane diisocyanate is dissolved in styrene, oil bath is warming up to 70 DEG C, drips hydroxyl fourth in intensification
Base vinyl ether resin, continues stirring 4 hours after completion of dropping, is made into the solution that mass fraction is 70%, as ethene improved
Base resin solution, the hydroxyl of the NCO of described '-diphenylmethane diisocyanate and hydroxy butyl vinyl ether resin is 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, 13 parts of cetyl pyridinium bromide modifications are covered
De- soil, 17 parts of alundum (Al2O3)s are dissolved in dimethylformamide, are uniformly mixed at normal temperatures, being made into mass fraction is
67% glue, the coating of comparative example as of the present invention.
Described coating is coated in after iron surface, irradiates 15 seconds under ultraviolet light, then material is toasted in 110 DEG C
1.5 hours, you can obtain the coating of optimum performance.
Embodiment 3
(1) '-diphenylmethane diisocyanate is dissolved in styrene, oil bath is warming up to 70 DEG C, drips hydroxyl fourth in intensification
Base vinyl ether resin, continues stirring 3 hours after completion of dropping, adds PPG, continues stirring 2 hours, is made into quality
Fraction is 70% solution, as modified vinyl resin solution, the NCO of described '-diphenylmethane diisocyanate, hydroxyl
The mol ratio of the hydroxyl of the hydroxyl of butyl vinyl ether resin and PPG 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, 13 parts of cetyl pyridinium bromide modifications are covered
De- soil, 17 parts of alundum (Al2O3)s are dissolved in dimethylformamide, are uniformly mixed at normal temperatures, being made into mass fraction is
The coating of the low VOC emission of 67% glue, the as embodiment of the present invention.
The coating of described low VOC emission is coated in after iron surface, irradiates 15 seconds under ultraviolet light, then material exists
1.5 hours are toasted, you can obtain the coating of optimum performance in 110 DEG C.
Respectively with the coating of various embodiments of the present invention and comparative example preparation, prepare its performance of sample test, performance test is tied
Fruit is as shown in table 1.
Performance test includes modified vinyl resin storage characteristics, cementability test, corrosion resistance test and VOC emission and measures
Examination, method of testing is as follows respectively：
(1) modified vinyl resin storage characteristics method of testing is placed for room temperature lower open mouth；
(2) condition of cure refers to that coating passes through to toast the baking temperature obtaining optimum performance coating and time
(3) cementability method of testing is that coating is coated on overlay, film is pressed on Copper Foil, through ultraviolet
Illumination and baking-curing test its tearing strength completely afterwards；
(4) elongation at break method of testing is that material is prepared into film, tests its elongation at break after completion of cure；
(5) corrosion resistance method of testing is that coating is coated in copper foil surface, is immersed in 2mol/L after fully solidifying
HCl and NaOH solution in, respectively soak 1 month after, observe its outward appearance；
(6) VOC emission weight testing method enters according to EPA 8260C (the GC-MS detection method of VOC)
Row detection.
Table 1：The modifying agent of the embodiment of the present invention and comparative example preparation and the coating property test result of low VOC emission
Show through above-mentioned contrast test result, prepare the storage that the excessive modified vinyl resin of hydroxyl is conducive to modifying agent
Deposit and facilitation is solidified with to coating simultaneously；The coating adhesive property of present invention preparation is excellent, has good toughness and pole
Good corrosion resistance, VOC emission amount is significantly lower than comparative example.
Described above is the detailed description for the preferable possible embodiments of the present invention, but embodiment is not limited to this
Bright patent claim, the equal change being completed under the technical spirit suggested by all present invention or modification change, all should belong to
In the covered the scope of the claims of the present invention.
Claims (7)
1. a kind of coating of low VOC emission it is characterised in that by following parts by weight component dissolving prepare in a solvent and
Become：Modified vinyl resin solution 30-40 part, light curing agent 1-10 part, modified montmorillonoid 10-15 part, filler 15-20 part, ring
Oxygen tree fat 30-40 part, maleic anhydride 1-5 part and accelerator 0.01-0.1 part；The solid content degree of the coating of described low VOC emission is
65-70%；
Described modified vinyl resin solution is dissolved in system in styrene by diisocyanate, hydroxyvinyl resin and polyalcohol
Standby form；The mol ratio of the hydroxyl of the NCO of described diisocyanate, the hydroxyl of hydroxyvinyl resin and polyalcohol
For 1：0.55-0.60:0.5-0.55；The mass concentration of described modified vinyl resin solution is 65-75%；
Described solvent is one of styrene, butanone, dimethylacetylamide and dimethylformamide or two or more combinations
Thing.
2. the coating of low VOC emission according to claim 1 is it is characterised in that described modified montmorillonoid changes for quaternary ammonium salt
Property montmorillonite, modified including dodecyl dimethyl benzyl ammonium bromide modified montmorillonoid, tetradecyl dimethyl benzyl ammonium
In montmorillonite, cetyl pyridinium bromide modified montmorillonoid or double bromination dodecyldimethylamine base ethyl ammonium modified montmorillonoid one
Plant or two or more.
3. the coating of low VOC emission according to claim 1 is it is characterised in that described filler is titanium dioxide, hydroxide
One of aluminium and aluminum oxide or two or more compositions.
4. the coating of low VOC emission according to claim 1 is it is characterised in that described 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 is it is characterised in that described hydroxyvinyl resin is methyl
Hydroxy-ethyl acrylate and/or hydroxy butyl vinyl ether；Described diisocyanate is hexamethylene diisocyanate, diphenyl-methane two
One of isocyanates and toluene di-isocyanate(TDI) or two or more compositions；Described polyalcohol be PEPA and/
Or PPG.
6. the coating of low VOC emission according to claim 1 is it is characterised in that described light curing agent draws for free radical light
Send out agent, including 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- trimethylbenzoyl
Base phenyl-phosphonic acid ethyl ester, 2- dimethylamino -2- benzyl -1- [4- (4- morpholinyl) phenyl] -1- butanone and 2- hydroxy-2-methyl -
One of 1- [4- (2- hydroxyl-oxethyl) phenyl] -1- acetone or two or more compositions；Described accelerator is 2- methyl
Imidazoles, 2- ethyl, 4-methylimidazole, 2- phenylimidazole and 2- phenyl, one of 4-methylimidazole or two or more combinations
Thing.
7. the coating of low VOC emission described in a kind of any one of claim 1 to 6 preparation method it is characterised in that include as
Lower step：
(1) diisocyanate is dissolved in styrene, oil bath is warming up to 60-80 DEG C, drips hydroxyvinyl tree in intensification
Fat, continues stirring 3-4 hour, adds polyalcohol after completion of dropping, continue stirring 1-2 hour, and being made into mass fraction is 65-75%
Solution, as modified vinyl resin solution, the NCO of described diisocyanate, the hydroxyl of hydroxyvinyl resin
Mol ratio with the hydroxyl of polyalcohol is 1:0.55-0.60:0.5-0.55；
(2) by 30-40 part epoxy resin, 1-5 part maleic anhydride, 0.01-0.1 part accelerator, 30-40 part modified vinyl resin
Solution, 1-10 part light curing agent, 10-15 part modified montmorillonoid, 15-20 part filler are dissolved in solvent, at normal temperatures stirring mixing
Uniformly, it is made into the glue that mass fraction is 65-70%, the as coating of the low VOC emission of the present invention.
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| CN201610870000.6A CN106398474B (en) | 2016-09-30 | 2016-09-30 | A kind of coating and preparation method thereof of low VOC emission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114989729A (en) * | 2022-07-27 | 2022-09-02 | 浙江泓泉环境科技有限公司 | Formula and preparation method of ultraviolet curing material |
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| EP1045009A1 (en) * | 1999-04-16 | 2000-10-18 | Dow Corning Corporation | Heat curable silcone acrylate coating compositions |
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| CN103172801A (en) * | 2013-02-04 | 2013-06-26 | 太原理工大学 | Preparation method of polyurethane/styrene elastomer composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114989729A (en) * | 2022-07-27 | 2022-09-02 | 浙江泓泉环境科技有限公司 | Formula and preparation method of ultraviolet curing material |
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