CN108949009A - A kind of aqueous UV priming paint of color inhibition - Google Patents
A kind of aqueous UV priming paint of color inhibition Download PDFInfo
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- CN108949009A CN108949009A CN201810902430.0A CN201810902430A CN108949009A CN 108949009 A CN108949009 A CN 108949009A CN 201810902430 A CN201810902430 A CN 201810902430A CN 108949009 A CN108949009 A CN 108949009A
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- acrylate
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- priming paint
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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
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
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- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
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Abstract
The invention discloses a kind of aqueous UV priming paint of color inhibition, waterborne UV coating composition, and parts by weight composition includes: 50-70 parts of modified urethane acrylate, 10-20 parts of acrylate, 5-10 parts of hydroxy acrylate, 0.1-1 parts of defoaming agent, 0.2-2 parts of wetting agent, 0.1-1 parts of levelling agent, 0.1-1 parts of scratching resistant, 0.1-1 parts of defoaming agent, nano silica 0.5-2 parts containing double bonds of surface modification, 1-10 parts of initiator, 20-40 parts of deionized water.Aqueous UV priming paint prepared by the present invention has the aqueous UV priming paint of color inhibition, high-flexibility and high intensity.
Description
Technical field
The present invention relates to a kind of aqueous UV priming paint of color inhibition.
Background technique
Ultraviolet-curing paint (UVCC) is a kind of highly effective energy-conserving environmental-protecting type modernization coating using ultraviolet curing.It is prominent
Feature is efficiently, adapts to wide, economic, energy conservation and environmental protection out.Therefore, photocuring technology is known as green industry geared to the 21st century
New technology.Curable wood coating is developed first from nineteen sixty-eight Bayer A.G, and photocuring technology realizes industrialization.It is existing
Ultraviolet-curing paint in the very big development that has taken of the whole world, the stage more mature into one.
Waterborne UV coating is widely used in surface-beautifying and the protection of metal, timber and glass as outer lacquer coat.
Found in long-term use, when the skin covering of the surface that waterborne UV coating is formed uses one section after can occur Yellowing, what open air used
Coating on apparatus is especially prominent.It has been investigated that the coating that waterborne UV coating is formed uses for a long time, it is particularly at open air
Coating, under irradiation by sunlight, it may occur that the aging rice seeds such as degradation, rearrangement or excessive crosslinking of the polymer chain of coat inside,
Generating coloured unstable intermediate makes solidify coating turn to be yellow, and dusting becomes fragile.
There are two the main reason for UV coating xanthochromia, first is that because containing some hot (light) mutagens colors in some resin systems
Substance, heated rear molecular structure change, generate stronger conjugated structure, coating color is made to turn yellow.Second is that initiator itself
Unstability, some photoinitiators by ultraviolet radiation decomposition generate free radicals while can also generate some by-products,
By-product has quinoid structure or rigid conjugate planes very strong, is easy to absorb the sunlight of a certain wave band, and then makes the coating be in
Reveal yellow.And the xanthochromia of coating has seriously affected the aesthetics of product, affects the popularization of colourless UV coating.Therefore it develops new
The UV coating of the resistance to Huang of type has good commercial value.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of aqueous UV priming paint of color inhibition, the aqueous UV is applied
Material is made of following substance and parts by weight: 50-70 parts of modified urethane acrylate, 10-20 parts of acrylate, and hydroxy acrylic acid
5-10 parts of ester, 0.1-1 parts of defoaming agent, 0.2-2 parts of wetting agent, 0.1-1 parts of levelling agent, 0.1-1 parts of scratching resistant, defoaming agent 0.1-
1 part, nano silica 0.5-2 parts containing double bonds of surface modification, 1-10 parts of initiator, 20-40 parts of deionized water.
As a kind of perferred technical scheme, the modified urethane acrylate is by 1, and hexamethylene-diisocyanate is different
Isophorone diisocyanate, acrylic acid benzotriazole derivatives, polyalcohol, multi-thiol mix poly- form.
As a kind of perferred technical scheme, the multi-thiol is penta pentaerythrite four (3- mercaptopropionic acid) ester
As a kind of perferred technical scheme, the polyalcohol is selected from ethylene glycol, glycerol, trimethylolpropane, pentaerythrite, mountain
Pears sugar alcohol, sucrose, triethanolamine, diethylene glycol (DEG), propylene glycol, triethylene glycol, dipropylene glycol, 1,4-butanediol, 1,3-BDO, 2,3-
Butanediol, 1,2- butanediol, 3- methyl-1,2- butanediol, 2,2- diethyl -1,3-PD, 2- butyl -2- ethyl -1,3-
Propylene glycol, 1,2- pentanediol, 1,5-PD, Isosorbide-5-Nitrae-pentanediol, 2,4- pentanediol, 2,3- dimethyl propylene glycol, Isosorbide-5-Nitrae-fourth two
Alcohol, 3- methyl -4,3- pentanediol, 3- methyl-1,5- pentanediol, 2,2,4- trimethyl -1,3- pentanediols, 1,6- hexylene glycol, 1,
5- hexylene glycol, Isosorbide-5-Nitrae-hexylene glycol, 2,5- hexylene glycol, neopentyl glycol, polyethylene glycol, glycerol, trimethylolpropane, trihydroxy methyl second
Alkane, diglycerol, triglycerin, 1,2,6- hexanetriols, pentaerythrite, dipentaerythritol, 1,3-CHDM, Isosorbide-5-Nitrae-hexamethylene
Dimethanol, tricyclic quinane dimethanol, the alicyclic polyol of hydrogenated bisphenol A, the alicyclic polyol of A Hydrogenated Bisphenol A F are a kind of or more
Kind.
As a kind of perferred technical scheme, the amount of substance of the polyalcohol and multi-thiol ratio is 3:1-15:1.
As a kind of perferred technical scheme, the benzotriazole derivatives introduce alkylol on benzotriazole phenyl ring region,
Such as structural formula;
The integer of n=1-12
As a kind of perferred technical scheme, the acrylate is selected from methyl acrylate, ethyl acrylate, acrylic acid positive third
Ester, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, sec-butyl acrylate, tert-butyl acrylate, acrylic acid penta
Ester, isoamyl acrylate, the just own ester of acrylic acid, acrylic acid-2-ethyl caproite, acrylic acid pentadecane base ester, lauryl acrylate,
Cyclohexyl acrylate, acrylic acid norbornene base ester, isobornyl acrylate, benzyl acrylate, phenoxyethyl acrylate, third
Olefin(e) acid phenyl ester, methyl methacrylate, ethyl methacrylate, n propyl methacrylate, isopropyl methacrylate, methyl
The secondary butyl ester of n-butyl acrylate, Isobutyl methacrylate, methacrylic acid, Tert-butyl Methacrylate, methacrylic acid penta
Ester, isopentyl methacrylate, the just own ester of methacrylic acid, methacrylic acid -2- ethylhexyl, methacrylic acid pentadecyl
One or more of ester, lauryl methacrylate, phenyl methacrylate.
As a kind of perferred technical scheme, the initiator is during alpha-hydroxyacetophenone class causes from 1- hydroxy-cyclohexyl
Phenyl ketone, two kinds of 1,1'- (methylene two -4,1- phenylene) bis- [2- hydroxy-2-methyl -1- acetone] are used cooperatively, 1- hydroxyl
Butylcyclohexyl phenyl ketone, two kinds of 1,1'- (methylene two -4,1- phenylene) bis- [2- hydroxy-2-methyl -1- acetone] cooperation
Mass ratio is 1:2-1:10.
As a kind of perferred technical scheme, the anti-scratch agent is selected from one or both of polyethylene wax, polypropylene wax.
As a kind of perferred technical scheme, the hydroxy acrylate is selected from methyl-acrylic acid hydroxyl methyl esters, methyl-the third
Olefin(e) acid hydroxyl ethyl ester, methyl-acrylic acid hydroxypropyl acrylate, methyl-acrylic acid hydroxy butyl ester.
A kind of preparation method of the aqueous UV priming paint of color inhibition: according to 20-40 parts of formulation deionised water, surface modification contains
0.5-2 parts of the nano silica of double bond, is added to GFJ-0.4 type high speed disperser, is heated to 45 by 0.1-1 parts of levelling agentoC
Dispersed 10min under 600r/min revolving speed, add 50-70 parts of urethane acrylate, dispersed 10min, revolving speed is down to
300r/min is added acrylate 10-20 parts, 5-10 parts of hydroxy acrylate, is heated to 60oC disperses under this revolving speed
Then 15min cools to 40oC is added defoaming agent 0.1-1 parts, 0.2-2 parts of wetting agent, 0.1-1 parts of scratching resistant, disperses
10min adds initiator 1-10 parts of dispersion 30min after dropping to room temperature to get UV coating solution is arrived.
The characteristics of aqueous UV priming paint of a kind of color inhibition: modified urethane acrylate and acrylate in the present invention, hydroxyl
Base acrylate, which mixes to gather under the action of various auxiliary agents, obtains the aqueous UV priming paint of color inhibition and high rigidity.It is main for polymerized monomer
There are two the main reason for UV coating xanthochromia, first is that because containing some hot (light) mutagens color substances in some resin systems, by
Molecular structure changes after heat, generates stronger conjugated structure, coating color is made to turn yellow.Second is that initiator itself is unstable
Property, some photoinitiators can also generate some by-products, by-product tool while being generated free radicals by ultraviolet radiation decomposition
There are quinoid structure or rigid conjugate planes very strong, is easy to absorb the sunlight of a certain wave band, and then coating is made to show yellow.
The diisocyanate of modified urethane acrylate is prepared by aliphatic diisocyanate, 1, hexamethylene-diisocyanate
It being formed with isophorone diisocyanate, aliphatic Polyurethane is not due to having conjugation benzene ring structure, to ultraviolet absorption difference,
Therefore the polyurethane generated is not easy to generate coloring matter by photooxidation.
Benzotriazole derivatives pass through hydroxyl polymeric into polyurethane system, by chemical bond that benzotriazole derivatives are equal
Even is fixed on urethane acrylate.It can be absorbed by the transfer of hydrogen bond and isomery easily by amido bond, ester in benzotriazole
The ultraviolet light of key, ether bond rupture, and translated into heat.Benzotriazole reduces it for after harmful UV Absorption
A possibility that his substance is oxidized discoloration.
A small amount of multi-thiol cooperation polyalcohol is added when preparing modified urethane acrylate and participates in reaction, the sulphur of sulfenyl
Hydrogen bond is easily and Free Radical is with anti-oxidant inhibition can make the unsaturated double-bond in aqueous UV priming paint before film forming
More effectively crosslinking.It can effectively prevent after film forming that unsaturated bond occurs oxidation chrysanthemum and is crosslinked again crisp in priming paint under sun photograph
Situations such as change.
Hydroxycyclohexyl phenyl ketone, 1,1'- (methylene two -4,1- phenylene) are bis- [2- hydroxy-2-methyl -1- acetone]
For single phenyl dissociative type initiator, it is inlaid into inside coating in the course of the polymerization process or volatilization, unimolecule has electron-withdrawing group carbonyl
Benzene do not allow it is oxidizable, be also not easy conjugation formed rigid structure absorb colored light make polymer discoloration.1- hydroxycyclohexylphenyl
Ketone and being used cooperatively for 1,1'- (two -4,1- phenylene of methylene) bis- [2- hydroxy-2-methyl -1- acetone] can improve
The polymerization inhibitor for having the function that antioxygen while imitating polymerization speed, can make the unsaturated double-bond in aqueous UV priming paint before film forming
More effectively crosslinking.It can effectively prevent after film forming that unsaturated bond occurs oxidation chrysanthemum and is crosslinked again crisp in priming paint under sun photograph
Situations such as change.
Nano material has skin effect and quantum size effect.Wherein skin effect is that the surface area ratio of nano material is general
The surface area of logical material is bigger.Quantum size effect bring energy level changes, energy gap broadens, and increases the emitted energy of particle,
Optical absorption is mobile (blue shift) to shortwave length direction, intuitively shows as the variation of color sample, material can be made to absorb coloured
Light color shoals.Surface modification nano silica containing double bonds can be evenly dispersed by way of crosslinking by nano material
Into UV coating, after colored light, which impinges upon, to be absorbed on coating again under the action of nano silica can by colored light desalination to
Reach resistance to yellow effect.
Specific embodiment
Unless otherwise defined, all technologies used herein and scientific term have and the common skill of fields of the present invention
The normally understood identical meaning of art personnel.When there is a conflict, the definition in this specification shall prevail.
Modified urethane acrylate is the hexamethylene-diisocyanate by 1 as a preferred embodiment of the present invention,
Isophorone diisocyanate, acrylic acid, benzotriazole derivatives, polyalcohol, multi-thiol are mixed to be polymerized.
Aliphatic Polyurethane is not due to having conjugation benzene ring structure, to ultraviolet absorption difference, therefore the polyurethane generated
It is not easy to generate coloring matter by photooxidation.Modified polyurethane acrylic acid is prepared as a preferred embodiment of the present invention
The diisocyanate of ester is by aliphatic diisocyanate 1, hexamethylene-diisocyanate and isophorone diisocyanate composition.
Multi-thiol is penta pentaerythrite four (3- mercaptopropionic acid) ester as a preferred embodiment of the present invention.
Polyalcohol
Polyalcohol, i.e., the alcohols containing two or two or more hydroxyls in molecule.Polyalcohol is generally dissolved in water, most of polyalcohols
All have boiling point high, the viscous liquid or crystalline solid of the characteristics such as toxicity and volatility small strong to polar substances solvability.
Its boiling point, viscosity, relative density and fusing point etc. increase with molecular weight and are increased.As a preferred embodiment of the present invention
Polyalcohol is selected from ethylene glycol, glycerol, trimethylolpropane, pentaerythrite, D-sorbite, sucrose, triethanolamine, diethylene glycol (DEG), third
Glycol, triethylene glycol, dipropylene glycol, 1,4-butanediol, 1,3-BDO, 2,3-butanediol, 1,2- butanediol, 3- methyl-1,2-
Butanediol, 2,2- diethyl -1,3-PD, 2- butyl -2- ethyl -1,3-PD, 1,2- pentanediol, 1,5-PD,
Isosorbide-5-Nitrae-pentanediol, 2,4- pentanediol, 2,3- dimethyl propylene glycol, 1,4-butanediol, 3- methyl -4,3- pentanediol, 3- methyl-1,
5- pentanediol, 2,2,4- trimethyl -1,3- pentanediols, 1,6- hexylene glycol, 1,5- hexylene glycol, Isosorbide-5-Nitrae-hexylene glycol, 2,5- hexylene glycol,
Neopentyl glycol, polyethylene glycol, glycerol, trimethylolpropane, trimethylolethane, diglycerol, triglycerin, 1,2,6- hexanetriols,
Pentaerythrite, dipentaerythritol, 1,3-CHDM, 1,4-CHDM, tricyclic quinane dimethanol, A Hydrogenated Bisphenol A
Alicyclic polyol, the alicyclic polyol of A Hydrogenated Bisphenol A F of A is one or more.
The amount of substance of polyalcohol and multi-thiol ratio is 3:1-15:1. as a preferred embodiment of the present invention
Benzotriazole
Benzotriazole also known as phenylpropyl triazole, benzo triazole, benzotriazole, benzotriazole etc..Benzotriazole is mainly made
For water treatment agent, metal antirusting agent and corrosion inhibiter.It is widely used in circulating water treatment agent, in antirust oil, lipid product, is also applied to
The vapour phase inhibitor of copper and copper alloy, lube oil additive.Benzotriazole can also be used as ultraviolet absorbing agent, prevent macromolecule
The additive of material aging yellow in the sunlight, can be used for the fine chemical products such as cosmetics, especially in have in car paint
Most commonly used use.
The design feature of benzotriazole derivatives is as a preferred embodiment of the present invention, in benzotriazole benzene
Alkylol, such as structural formula are introduced in ring region;
The integer of n=1-12
Alcoholic extract hydroxyl group, which introduces propyl benzene triazole, can be such that benzotriazole derivatives efficiently gather under conditions of isocyanates polymerize with alcohol
It closes in the polymer of polyurethane.Urethane acrylate prepared at it is middle use be eventually adding benzotriazole derivatives can be with
Make benzotriazole derivatives be evenly distributed on polymer the end of the chain and derivative phenolic hydroxyl group it is interference-free.If phenolic hydroxyl group is also joined
It will greatly reduce or disappear with the suction ultraviolet capability of polymerizeing for polyurethane, benzotriazole derivatives, to reduce aqueous
UV coating resistant to yellowing energy
Acrylate is being selected from methyl acrylate, ethyl acrylate, acrylic acid just as a preferred embodiment of the present invention
Propyl ester, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, sec-butyl acrylate, tert-butyl acrylate, acrylic acid
Pentyl ester, isoamyl acrylate, the just own ester of acrylic acid, acrylic acid-2-ethyl caproite, acrylic acid pentadecane base ester, lauryl
Ester, cyclohexyl acrylate, acrylic acid norbornene base ester, isobornyl acrylate, benzyl acrylate, acrylic acid phenoxy group second
Ester, phenyl acrylate, methyl methacrylate, ethyl methacrylate, n propyl methacrylate, methacrylic acid isopropyl
The secondary butyl ester of ester, n-BMA, Isobutyl methacrylate, methacrylic acid, Tert-butyl Methacrylate, methyl-prop
Olefin(e) acid pentyl ester, isopentyl methacrylate, the just own ester of methacrylic acid, methacrylic acid -2- ethylhexyl, methacrylic acid ten
One or more of five Arrcostabs, lauryl methacrylate, phenyl methacrylate.
Initiator
Initiator English is initiator, also known as radical initiator, refers to that one kind is easy to be thermally decomposed into free radical (i.e. primary
Free radical) compound, can be used for causing alkenes, the free radical polymerization of double vinyl monomers and copolymerization, it can also be used to no
The crosslinking curing and high molecular crosslink of saturated polyester react.Initiator is α-hydroxyl as a preferred embodiment of the present invention
From 1- hydroxycyclohexyl phenyl ketone, 1,1'- (methylene two -4,1- phenylene) bis- [2- hydroxyl -2- in the initiation of benzoylformaldoxime class
Methyl-1-acetone] two kinds be used cooperatively, 1- hydroxycyclohexyl phenyl ketone, 1,1'- (methylene two-4,1- phenylene) bis- [2-
Hydroxy-2-methyl -1- acetone] mass ratioes of two kinds of cooperations is 1:2-1:10.1- hydroxycyclohexyl phenyl ketone, 1,1'- (methylene
Base two -4,1- phenylene) bis- [2- hydroxy-2-methyl -1- acetone] be single phenyl dissociative type initiator, it inlays in the course of the polymerization process
Enter inside coating or volatilization, unimolecule is not allowed oxidizable with electron-withdrawing group carbonyl benzene, is not easy conjugation yet and forms rigid structure
Absorbing colored light makes polymer discoloration.1- hydroxycyclohexyl phenyl ketone and 1,1'- (two -4,1- phenylene of methylene) bis- [2-
Hydroxy-2-methyl -1- acetone] with the use of can have the function that the polymerization inhibitor of antioxygen while improving and imitating polymerization speed,
The unsaturated double-bond in aqueous UV priming paint can be made more effectively to be crosslinked before film forming.It is shone after film forming can effectively be prevented in the sun
Unsaturated bond occurs oxidation chrysanthemum and is crosslinked situations such as embrittlement again in lower priming paint.
Scratching resistant
Anti-scratch agent is selected from one or both of polyethylene wax, polypropylene wax as a preferred embodiment of the present invention.
Hydroxy acrylate is selected from methyl-acrylic acid hydroxyl methyl esters, methyl-as a preferred embodiment of the present invention
Hydroxy-ethyl acrylate, methyl-acrylic acid hydroxypropyl acrylate, one of methyl-acrylic acid hydroxy butyl ester or a variety of.
Levelling agent
Levelling agent is a kind of common coating additive, it can promote coating formed during the drying and film forming process one it is smooth, smooth,
Uniform film.It can be effectively reduced and cover with paint, lacquer, colour wash, etc. liquid surface tension, improve a substance of its levelability and uniformity.Covering with paint can be improved
The permeability of liquid, increases spreadability at a possibility that spot and spot are generated when can be reduced brushing, make film forming uniformly, it is natural.As
A kind of preferred embodiment levelling agent of the present invention of the invention is the third isophorone.
Defoaming agent
Defoaming agent (English name Defoamers, Defoaming Agent) is a kind of auxiliary agent, and function is to eliminate producing
The foam that material is formed in journey.Organic silicon defoamer is a kind of lotion of thick white.Just for each industry neck from the sixties
Domain, in industrial departments such as chemical industry, papermaking, coating, food, weaving, pharmacy, organic silicon defoamer is indispensable in production process
A kind of auxiliary agent, it can remove the foam on production process technology medium liquid level, so as to improve being filtered, washed, extracting, steaming
The separation, gasification, drain and other effects of technical process such as evaporate, evaporate, being dehydrated, drying, it is ensured that all kinds of materials contain, process container
Capacity.Defoaming agent of the present invention is dimethyl silicone polymer as a preferred embodiment of the present invention.
Wetting agent
Wetting agent is the substance that solid material can be made to be easier to be soaked in water.By reducing its surface tension or interfacial tension, make water
It can be deployed on solid material surface, or penetrate its surface, and solid material is soaked.Water energy soaks glass because of glass
Silicate is all polar substances, and the effect between them by force can be mutually close to the surface energy to reduce water.Water cannot soak
Because wax is apolar substance, the active force between them it is weak and cannot be mutually close to the surface energy to reduce water.When surface energy
Gao Shi, water are just shrunk to spherical shape automatically.Wetting agent belongs to surfactant, is made of hydrophilic group and lipophilic group.When with solid table
When face contact, lipophilic group is attached to the surface of solids, and hydrophilic group is formed continuously in the surface of solids outwards towards in liquid, making liquid
Phase, here it is the basic principles of wetting action.A kind of preferred embodiment wetting agent of the present invention of the invention is polyethylene glycol
200。
Surface modification nano silica containing double bonds
Nano material has skin effect and quantum size effect.Wherein skin effect is the common material of surface area ratio of nano material
The surface area of material is bigger.Quantum size effect bring energy level changes, energy gap broadens, and increases the emitted energy of particle, optics
It absorbs to shortwave length direction movement (blue shift), intuitively shows as the variation of color sample, the colored light face that material can be made to absorb
Discoloration is shallow.Modification group in surface modification nano silica containing double bonds can prevent nano silica from reuniting, and increase
Add surface area.Nano material can be evenly spread to UV coating by nano silica containing double bonds by way of crosslinking
In, colored light can be desalinated under the action of nano silica to reach resistance to Huang again after colored light, which impinges upon, to be absorbed on coating
Change effect.Surface modification of the invention nano silica containing double bonds is as a preferred embodiment of the present invention
It reacts and is prepared with double isocyanates and hydroxy acid butyl ester by nano silica.
Raw material sources
The preparation of surface modification nano silica containing double bonds
3.0g nano silica and isophorone diisocyanate 3.1g is taken to be dispersed in 90mL dry toluene, vacuum nitrogen filling
Disperse 10min in ultrasonic wave afterwards, in 90oC reacts 6h.It is washed, product is distributed to anhydrous with dry toluene after reaction
Ultrasonic wave disperses 10min in toluene, and 1.5 hydroxy acid butyl esters, nitrogen protection 90 is then added dropwise oC reacts 48h.Reaction terminates
It is separated afterwards with centrifugal method, the physical absorption on surface is removed using toluene, obtains surface modification nanometer titanium dioxide containing double bonds
Silicon.
Aqueous polyurethane acrylate is prepared by laboratory, and required raw material is commercially available, the preparation method is as follows:
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then in 50-60 DEG C of 20 parts of addition polyalcohol, more
First mercaptan (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to the infrared transform spectrometer of Fourier
It is lost when the NCO characteristic absorption peak disappearance 90% of survey, is added 5 parts of benzotriazole derivatives, the reaction was continued to the infrared transformation light of Fourier
The NCO characteristic absorption peak that spectrometer is surveyed disappears to get modified urethane acrylate lotion.
Embodiment 1
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition glycerol, season penta
Tetrol four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fourier
It is lost when the NCO characteristic absorption peak disappearance 90% that infrared transform spectrometer is surveyed, is added 5 parts of benzotriazole derivatives, the reaction was continued to Fu
In the NCO characteristic absorption peak surveyed of the infrared transform spectrometer of leaf disappear to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:2, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 0 grade.
Embodiment 2
At 40-50 DEG C, by 30 parts of toluene di-isocyanate(TDI), wherein catalyst is poly- second two to 20 parts of isophorone diisocyanate
Then more 20 parts of ethylene glycol, season are added at 50-60 DEG C in the 0.02-0.03% of alcohol monomethyl ether and isocyanate ester compound gross mass
Penta tetrol four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fu
It is lost when the NCO characteristic absorption peak disappearance 90% that the infrared transform spectrometer of leaf is surveyed, is added 5 parts of benzotriazole derivatives, the reaction was continued extremely
The NCO characteristic absorption peak that the infrared transform spectrometer of Fourier is surveyed disappears to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:2, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 2 grades.
Embodiment 3
At 40-50 DEG C, by 30 parts of toluene di-isocyanate(TDI), wherein catalyst is poly- to 20 parts of diphenylmethylene diisocyanate
The 0.02-0.03% of glycol monoethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition polyalcohol,
Pentaerythrite four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fu
In the NCO characteristic absorption peak surveyed of the infrared transform spectrometer of leaf disappear 90% when lose, be added 5 parts of benzotriazole derivatives, the reaction was continued
The NCO characteristic absorption peak surveyed to the infrared transform spectrometer of Fourier disappears to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:2, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 3 grades.
Embodiment 4
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition D-sorbite,
Benzotriazole is added in pentaerythrite four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan)
The reaction was continued disappears to get modified polyurethane third to the NCO characteristic absorption peak that the infrared transform spectrometer of Fourier is surveyed for 5 parts of derivative
Olefin(e) acid ester lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:2, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 3 grades.
Embodiment 5
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition D-sorbite,
Pentaerythrite four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fu
In the NCO characteristic absorption peak surveyed of the infrared transform spectrometer of leaf disappear 90% when lose, be added 5 parts of benzotriazole derivatives, the reaction was continued
The NCO characteristic absorption peak surveyed to the infrared transform spectrometer of Fourier disappears to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:2, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 2 grades (yellow colour index is uneven).
Embodiment 6
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition glycerol, season penta
Tetrol four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fourier
It is lost when the NCO characteristic absorption peak disappearance 90% that infrared transform spectrometer is surveyed, is added 5 parts of benzotriazole derivatives, the reaction was continued to Fu
In the NCO characteristic absorption peak surveyed of the infrared transform spectrometer of leaf disappear to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:3, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 0 grade.
Embodiment 7
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition glycerol, season penta
Tetrol four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fourier
It is lost when the NCO characteristic absorption peak disappearance 90% that infrared transform spectrometer is surveyed, is added 5 parts of benzotriazole derivatives, the reaction was continued to Fu
In the NCO characteristic absorption peak surveyed of the infrared transform spectrometer of leaf disappear to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:10, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 1 grade.
Comparative example 1
At 40-50 DEG C, by 30 parts of toluene di-isocyanate(TDI), wherein catalyst is poly- second two to diphenylmethylene diisocyanate
The 0.02-0.03% of alcohol monomethyl ether and isocyanate ester compound gross mass, it is then (different in 50-60 DEG C of 20 parts of addition D-sorbite
The molal quantity of cyanate is close with the hydroxyl value of pure and mild mercaptan), the NCO that the reaction was continued surveys to the infrared transform spectrometer of Fourier is special
Absorption peak is levied to disappear to get modified urethane acrylate lotion.
30 parts of deionized water, the third 0.3 part of isophorone is added to GFJ-0.4 type high speed disperser, is heated to 45oC warp
Disperse 10min under 600r/min revolving speed, add 65 parts of urethane acrylate, disperses 10min, revolving speed is down to 300r/
Min adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to 60oC disperses 15min under this revolving speed, then cools down
To 40oC is added 0.5 part of dimethyl silicone polymer, 0.5 part of wetting agent polyethylene glycol 200,0.8 part of polyethylene wax, disperses
10min adds 3 parts of benzophenone after dropping to room temperature, disperses 30min to get UV coating solution is arrived.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 5 grades.
Comparative example 2
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition glycerol, season penta
Tetrol four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fourier
It is lost when the NCO characteristic absorption peak disappearance 90% that infrared transform spectrometer is surveyed, is added 5 parts of benzotriazole derivatives, the reaction was continued to Fu
In the NCO characteristic absorption peak surveyed of the infrared transform spectrometer of leaf disappear to get modified urethane acrylate lotion.
30 parts of deionized water, the third 0.3 part of isophorone is added to GFJ-0.4 type high speed disperser, is heated to 45oC warp
Disperse 10min under 600r/min revolving speed, add 65 parts of urethane acrylate, disperses 10min, revolving speed is down to 300r/
Min adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to 60oC disperses 15min under this revolving speed, then cools down
To 40oC is added 0.5 part of dimethyl silicone polymer, 0.5 part of wetting agent polyethylene glycol 200,0.8 part of polyethylene wax, disperses
10min, drops to after room temperature plus total part of two kinds of 1'- (methylene two -4,1- phenylene) bis- [2- hydroxy-2-methyl -1- acetone]
Number is 3 parts, and two kinds of mass ratioes are 1:2, disperses 30min to get UV coating solution is arrived.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 2 grades.
Comparative example 3
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition glycerol, season penta
Tetrol four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fourier
It is lost when the NCO characteristic absorption peak disappearance 90% that infrared transform spectrometer is surveyed, is added 5 parts of benzotriazole derivatives, the reaction was continued to Fu
In the NCO characteristic absorption peak surveyed of the infrared transform spectrometer of leaf disappear to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, 3 parts of dispersion 30min of benzophenone are added to get UV is arrived after dropping to room temperature
Coating solution.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 3 grades.
Comparative example 4
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then in 30 parts of (isocyanides of 50-60 DEG C of addition glycerol
The molal quantity of acid esters is close with pure and mild hydroxyl value), the NCO characteristic absorption peak that the reaction was continued surveys to the infrared transform spectrometer of Fourier
Disappear 90% when mistake, be added 5 parts of benzotriazole derivatives, the reaction was continued inhales to the NCO feature that the infrared transform spectrometer of Fourier is surveyed
Peak is received to disappear to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:2, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 2 grades.
Comparative example 5
At 40-50 DEG C, by 1,30 parts of hexamethylene-diisocyanate, wherein catalyst is poly- second to 20 parts of isophorone diisocyanate
The 0.02-0.03% of glycol monomethyl ether and isocyanate ester compound gross mass, then 50-60 DEG C of 20 parts of addition glycerol, season penta
Tetrol four (3- mercaptopropionic acid) ester (molal quantity of isocyanates is close with the hydroxyl value of pure and mild mercaptan), the reaction was continued to Fourier
The NCO characteristic absorption peak that infrared transform spectrometer is surveyed disappears to get modified urethane acrylate lotion.
30 parts of deionized water, 0.5 part of surface modification nano silica containing double bonds, the third 0.3 part of isophorone is added
To GFJ-0.4 type high speed disperser, it is heated to 45oC adds polyurethane acroleic acid through dispersing 10min under 600r/min revolving speed
65 parts of ester, disperses 10min, revolving speed is down to 300r/min, adds 15 parts of butyl acrylate, 8 parts of hydroxyl ethyl acrylate, is heated to
60oC disperses 15min under this revolving speed, then cools to 40oC is added 0.5 part of dimethyl silicone polymer, wetting agent polyethylene glycol
200 0.5 parts, 0.8 part of polyethylene wax, disperse 10min, adds 1'- (methylene two -4,1- phenylene) bis- [2- hydroxyls after dropping to room temperature
Base-2- methyl-1-acetone] two kinds of total number is 3 parts, two kinds of mass ratioes are 1:2, disperse 30min to get molten to UV coating
Liquid.
Sample is diluted to spray viscosity, uniform paint film is sprayed on defined test plate (panel) in the glass table of 0.01 square meter
Face, not have a blank and overflow phenomena, spray gun and coated surface spacing are not less than 200mm when spraying, and spraying direction is wanted and coated surface
At angle appropriate, air pressure is (0.2~0.4) MPa, and spray gun movement speed uniformly will complete solidification, yellow in 30min
Index is 3 grades.
Plastics yellow colour index test method is yellow with reference to the professional standard HG/T3862-2006. of People's Republic of China's chemical industry
Colour index part is 0 grade without discoloration, and 1 grade of very light discolouration, 2 grades of light discolourations, 3 have discoloration, 4 grades of obvious discolorations, 5 grades of serious changes
Color.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
The equivalent changes and modifications that content is done according to the present invention are encompassed by the scope of the patents of the invention.
Claims (9)
1. a kind of aqueous UV priming paint of color inhibition, which is characterized in that the waterborne UV coating is made of following substance and parts by weight:
50-70 parts of modified urethane acrylate, 10-20 parts of acrylate, 5-10 parts of hydroxy acrylate, 0.1-1 parts of defoaming agent, profit
0.2-2 parts of humectant, 0.1-1 parts of levelling agent, 0.1-1 parts of scratching resistant, 0.1-1 parts of defoaming agent, surface modification is containing double bonds to be received
0.5-2 parts of silica, 1-10 parts of initiator, 20-40 parts of deionized water of rice.
2. a kind of aqueous UV priming paint of color inhibition according to claim 1, which is characterized in that the modified polyurethane propylene
Acid esters is the hexamethylene-diisocyanate by 1, isophorone diisocyanate, acrylic acid, benzotriazole derivatives, and polyalcohol is polynary
Mercaptan mixes poly- form.
3. a kind of aqueous UV priming paint of color inhibition according to claim 2, which is characterized in that the multi-thiol was penta season
Penta tetrol four (3- mercaptopropionic acid) ester.
4. a kind of aqueous UV priming paint of color inhibition according to claim 2, which is characterized in that the polyalcohol is selected from second two
Alcohol, glycerol, trimethylolpropane, pentaerythrite, D-sorbite, sucrose, triethanolamine, diethylene glycol (DEG), propylene glycol, triethylene glycol, two
Propylene glycol, 1,4-butanediol, 1,3-BDO, 2,3-butanediol, 1,2- butanediol, 3- methyl-1,2- butanediol, 2,2- diethyl
Base -1,3-PD, 2- butyl -2- ethyl -1,3-PD, 1,2- pentanediol, 1,5-PD, Isosorbide-5-Nitrae-pentanediol, 2,4-
Pentanediol, 2,3- dimethyl propylene glycol, 1,4-butanediol, 3- methyl -4,3- pentanediol, 3- methyl-1,5- pentanediol, 2,2,4-
Trimethyl -1,3- pentanediol, 1,6- hexylene glycol, 1,5- hexylene glycol, Isosorbide-5-Nitrae-hexylene glycol, 2,5- hexylene glycol, neopentyl glycol, poly- second two
Alcohol, glycerol, trimethylolpropane, trimethylolethane, diglycerol, triglycerin, 1,2,6- hexanetriols, pentaerythrite, two seasons penta
Tetrol, 1,3-CHDM, 1,4-CHDM, tricyclic quinane dimethanol, hydrogenated bisphenol A it is alicyclic polynary
One of the alicyclic polyol or a variety of of alcohol, A Hydrogenated Bisphenol A F.
5. a kind of aqueous UV priming paint of color inhibition according to claim 2, which is characterized in that the polyalcohol and polynary sulphur
The amount of substance ratio of alcohol is 3:1-15:1.
6. a kind of aqueous UV priming paint of color inhibition according to claim 2, which is characterized in that the benzotriazole derivatives
To introduce alkylol, such as structural formula on benzotriazole phenyl ring region;
The integer of n=1-12.
7. a kind of aqueous UV priming paint of color inhibition according to claim 1, which is characterized in that the acrylate is selected from third
E pioic acid methyl ester, ethyl acrylate, n-propyl, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, propylene
The secondary butyl ester of acid, tert-butyl acrylate, amyl acrylate, isoamyl acrylate, the just own ester of acrylic acid, acrylic acid-2-ethyl caproite,
Acrylic acid pentadecane base ester, lauryl acrylate, cyclohexyl acrylate, acrylic acid norbornene base ester, isobornyl acrylate,
Benzyl acrylate, phenoxyethyl acrylate, phenyl acrylate, methyl methacrylate, ethyl methacrylate, metering system
The secondary butyl ester of sour n-propyl, isopropyl methacrylate, n-BMA, Isobutyl methacrylate, methacrylic acid,
Tert-butyl Methacrylate, pentylmethacrylate, isopentyl methacrylate, the just own ester of methacrylic acid, methacrylic acid-
One of 2- ethylhexyl, methacrylic acid pentadecane base ester, lauryl methacrylate, phenyl methacrylate are several
Kind.
8. a kind of aqueous UV priming paint of color inhibition according to claim 1, which is characterized in that the initiator is Alpha-hydroxy
Acetophenones initiator, by 1- hydroxycyclohexyl phenyl ketone, 1,1'- (methylene two -4,1- phenylene) bis- [2- hydroxyl -2-
Methyl-1-acetone] two kinds be used cooperatively, 1- hydroxycyclohexyl phenyl ketone, 1,1'- (methylene two-4,1- phenylene) bis- [2-
Hydroxy-2-methyl -1- acetone] mass ratioes of two kinds of cooperations is 1:2-1:10.
9. a kind of preparation method of the aqueous UV priming paint of color inhibition, which is characterized in that the preparation method comprises the following steps: pressing
According to 20-40 parts of formulation deionised water, nano silica 0.5-2 parts containing double bonds of surface modification, 0.1-1 parts of levelling agent, add
Enter to GFJ-0.4 type high speed disperser, is heated to 45oC adds polyurethane propylene through dispersing 10min under 600r/min revolving speed
50-70 parts of acid esters, disperse 10min, revolving speed is down to 300r/min, is added acrylate 10-20 parts, hydroxy acrylate 5-10
Part, it is heated to 60oC disperses 15min under this revolving speed, then cools to 40oC is added defoaming agent 0.1-1 parts, wetting agent 0.2-2
Part, 0.1-1 parts of scratching resistant, disperse 10min, drops to after room temperature plus initiator 1-10 parts of dispersion 30min is to get molten to UV coating
Liquid.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022088135A1 (en) * | 2020-10-31 | 2022-05-05 | 河北比尔尼克新材料科技股份有限公司 | Water-based ultraviolet-curable paint, preparation method therefor and application thereof |
| CN117089280A (en) * | 2023-10-20 | 2023-11-21 | 中国林业科学研究院木材工业研究所 | Transparent flame-retardant UV (ultraviolet) coating and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022088135A1 (en) * | 2020-10-31 | 2022-05-05 | 河北比尔尼克新材料科技股份有限公司 | Water-based ultraviolet-curable paint, preparation method therefor and application thereof |
| CN117089280A (en) * | 2023-10-20 | 2023-11-21 | 中国林业科学研究院木材工业研究所 | Transparent flame-retardant UV (ultraviolet) coating and preparation method and application thereof |
| CN117089280B (en) * | 2023-10-20 | 2024-01-30 | 中国林业科学研究院木材工业研究所 | Transparent flame-retardant UV (ultraviolet) coating and preparation method and application thereof |
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