CN101555376A - Method for preparing multi-color long afterglow water borne luminescent coatings - Google Patents

Method for preparing multi-color long afterglow water borne luminescent coatings Download PDF

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Publication number
CN101555376A
CN101555376A CNA2009100392897A CN200910039289A CN101555376A CN 101555376 A CN101555376 A CN 101555376A CN A2009100392897 A CNA2009100392897 A CN A2009100392897A CN 200910039289 A CN200910039289 A CN 200910039289A CN 101555376 A CN101555376 A CN 101555376A
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luminescent
coating
long afterglow
water borne
preparation
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黄妙银
冯振杰
郝志峰
王雪镅
余林
余坚
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Guangdong University of Technology
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Guangdong University of Technology
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Abstract

The invention discloses a method for preparing multi-color long afterglow water borne luminescent coatings. The coating is prepared by taking a high molecular polymer formed by mutual polyreaction of three monomers through initiating agents as acrylic emulsion, taking the synthetic acrylic emulsion as a base resin of the coating and adding luminescent powder, auxiliary agents and fillers; the prepared multi-color long afterglow water borne luminescent coatings have good luminescent property, wear-resisting property, adhesion property and the like. The coatings feature simple preparation process and convenient construction, and compared with the traditional oil soluble luminescent coatings, the coatings discharge no noxious solvents and enjoy environment-friendly production process.

Description

A kind of preparation method of multi-color long afterglow water borne luminescent coatings
Technical field
The invention belongs to light industry, chemical material field; It is the method that base-material prepares the good long-afterglow luminescent paint of over-all properties with the ACRYLIC EMULSION that the present invention is specifically related to a kind of.
Background technology
Long-persistence luminous is a kind of photoluminescence phenomenon, is meant that stopping to shine the back material at exciting light still can continue luminous phenomenon.The luminescent material difference, the performance of decay of luminescence differs widely, and the material light emission continuation time that has is very short, and the perdurability that has is then very long.Rare earth long-afterglow luminescent material is a kind of environment-friendly energy-saving material, it can be behind the energy that absorbs sunlight or light, portion of energy is stored, lentamente the form of energy stored with visible light discharged then, after light source is removed, still can send visible light for a long time.Utilize this characteristic to can be used as the lighting source at night and dark place, significant application value is arranged in fields such as building, traffic and national defence.
Long-afterglow luminescent paint mainly is divided into solvent-borne type and aqueous luminous paint two classes.The solvent-borne type long-afterglow luminescent paint is to be made by certain complete processing by a certain percentage by long after glow luminous material, organic resin, organic solvent and auxiliary agent etc.Solvent based coating often needs the range of application and the consumption of regulation strictness, and the harmful organic solvent that can volatilize during coating film forming, thereby its range of application is restricted.Compare with solvent based coating, the great advantage of water-borne coatings is the existence that greatly reduces the consumption of organic solvent or eliminated organic solvent basically, belongs to environmentally friendly coating.In addition, water-borne coatings becomes the focus of paint field research in recent years owing to have characteristics such as production and construction safety, not flammable, nontoxicity, free from extraneous odour, and aqueous luminous paint has vast potential for future development.
Two pieces of U.S.'s patents of invention have all been reported the luminous paint that is used for motorway, and its paint binder is acrylic acid modified urethane resin.This coating belongs to the water-based paint of non-solvent component, contains europium and the coactivated MAl of other rare earth ion 2O 3(M is one or more of Sr, Mg, Ca, Ba) luminophore is a kind of environmentally friendly road paint, can be used for the sign in the track and the sideline of motorway, and provide the pavement quality under the normal traffic condition.World Report (WorldReporter, 2000,1,18) has been introduced a kind of hydrophobic acrylic resin luminous paint peculiar to vessel in addition, and this coating adopts ZnS and SrAl 2O 4: Eu 2+Therefore two kinds of luminescent materials have the characteristics of zinc sulphide and strontium aluminate luminous material concurrently.Chinese invention patent (CN1084535A) has openly been introduced a kind of luminescent coating, and its luminescent material is europkium-activated alkali earth metal aluminate, and base-material is selected resins such as epoxy, alkyd, chlorinated polyvinyl chloride, trimeric cyanamide for use; Inst. of Marine Chemical Engineering and Shandong Lun Bo company are developing luminosity height, time of persistence length, nontoxic pollution-free, construction safety acrylic acid type energy stroage and liminous water paint easily jointly.
As seen from above, domestic aqueous luminous paint is in development, and the main drawback of existence has water tolerance, wears no resistance, and sticking power is not strong, and luminance brightness is inhomogeneous etc.Therefore, develop the important development direction that high performance aqueous luminous paint is present this field.
Summary of the invention
The objective of the invention is to the main drawback that exists at present aqueous luminous paint,, develop the luminous paint of the good and environmental protection of a kind of performance by utilizing three kinds of mutual graft polymerizations of monomer and selecting suitable admixtion.
In order to achieve the above object, preparation method of the present invention is to be ACRYLIC EMULSION by the high molecular polymer that three kinds of monomers form by the mutual polyreaction of initiator, with the binder resin of synthetic ACRYLIC EMULSION as coating, and interpolation luminescent powder, auxiliary agent and filler prepare multi-color long afterglow water borne luminescent coatings.
Three kinds of used monomers have the structure of formula 1 representative:
Figure A20091003928900051
Formula 1
Wherein:
R 1Representing H atom or carbonatoms is 1~5 alkyl;
R 2Representing H atom or carbonatoms is 1~10 alkyl.
In the above-mentioned polymerization process, polymerization temperature is 60~100 ℃, and the reaction times is 5~20min.
Above-mentioned used initiator is the aqueous solution of ammonium persulphate, dibenzoyl peroxide or Diisopropyl azodicarboxylate, and its strength of solution is 0.01g/mL~0.02g/mL.
The used luminescent powder of above-mentioned preparation luminous paint is rare-earth activated alkali earth metal aluminate, is specially CaAl 2O 4: Eu, Nd, or SrAl 2O 4: Dy, Eu or SrAl 2O 4: Eu, the consumption of luminescent powder account for the coating of preparing quality 10%~15%.
Used auxiliary agent is anti-settling agent, wetting agent, dispersion agent, defoamer and film coalescence aid; Wherein anti-settling agent is an aerosil, and wetting agent is an alcohol ester-12, and dispersion agent is a Sodium hexametaphosphate 99, and defoamer is a tbp, and film coalescence aid is a Texanol ester alcohol.
Used filler is mica powder, talcum powder, fine particle calcium carbonate and titanium dioxide, the consumption of filler account for the coating of preparing quality 21%~30%.
The consumption of above-mentioned anti-settling agent account for the coating of preparing quality 0.3%~0.5%, the consumption of wetting agent account for the coating of preparing quality 0.4%~0.8%, the consumption of dispersion agent account for the coating of preparing quality 0.6%~1.0%, the consumption of defoamer account for the coating of preparing quality 0.3%~0.7%, the consumption of film coalescence aid account for the coating of preparing quality 0.2%~0.3%.
Concrete steps provided by the invention are:
1, the polymerization of ACRYLIC EMULSION
A) with the sodium lauryl sulphate (emulsifying agent) of 5~10g and the first water dissolution of OP-10 of 2~5mL, change in the three-necked flask then with 100~150mL.
B) with the initiator water dissolution, solution is joined in the above-mentioned three-necked flask, utilize mechanical stirring and heat temperature raising.
C) mix three kinds of monomers by certainty ratio, when treating that the temperature of solution rises to 60~100 ℃ in the three-necked flask, get a certain amount of mix monomer (the residue mix monomer is stand-by), join in the above-mentioned three-necked flask, temperature of reaction is constant, and the reaction times is 5~20min.
D) will remain mix monomer and be added drop-wise to dropping funnel in the reaction solution of three-necked flask, and drip speed and be about 1mL/min.Then splash into initiator solution then, drip speed and be about 0.3mL/min, the temperature of reaction when dripping initiator solution is 70~90 ℃.After dropwising, the reaction times is 15~40min.
E) after reaction finishes, stop heating, but continue to stir, behind the question response liquid cool to room temperature, stop to stir, and discharging.
2, the preparation technology of luminous paint
A) with luminescent powder with ball mill grinding behind certain particle size, itself and anti-settling agent, filler are joined in the mortar, ground and mixed is even.
B) a certain amount of ACRYLIC EMULSION and wetting agent are joined continuation grinding in the above-mentioned mortar, make coating composition fully wetting, add certain amount of dispersant and defoamer then, continuing to be ground to does not have the obvious bulk particle.
C) above-mentioned work in-process are poured into from mortar in the flask, added a certain amount of ACRYLIC EMULSION then, and carry out high-speed stirring, churning time is 20~60min.Then a certain amount of film coalescence aid and defoamer are joined in the flask, continue to stir 20~60min.
D) after stirring finishes, make the long afterglow luminous paint, with the product bottling, and sealing is preserved.
The present invention compared with the prior art, beneficial effect is:
1) fluorescent lifetime of the luminous paint of the present invention's preparation is long, and brightness became clear at preceding 30min in ten minutes, and be 4~5h its time of persistence, and the luminosity of coating is basic suitable with luminescent powder.
2) luminous paint for preparing among the present invention be full of cracks and shrinkage phenomenon do not occur in the drying process when system is filmed, and prepared film coated surface is smooth.
3) luminous paint for preparing among the present invention is a water-borne coatings, compares with traditional oil soluble luminous paint, does not produce the discharging of noxious solvent, has good environment friendly.
4) the luminous paint over-all properties for preparing among the present invention is good, has wear resisting property, water resistance, acid resistance, adhesion property preferably.
5) preparation technology among the present invention is simple, and raw material is easy to get, and easy construction is fit to a large amount of preparations and suitability for industrialized production.
Embodiment
Below by embodiment to further instruction of the present invention.
The polymerization of ACRYLIC EMULSION
Embodiment 1:
With the sodium lauryl sulphate (emulsifying agent) of 5g and the first water dissolution of OP-10 of 3mL, change in the three-necked flask then with 100mL.After the ammonium persulphate usefulness 50mL water dissolution with 0.5g, join in the above-mentioned three-necked flask, stir with mechanical stirrer, and heating.Mix three kinds of monomers, wherein methyl methacrylate 100mL, butyl acrylate 100mL and methacrylic acid 10mL, when treating that the temperature of solution rises to 60 ℃ in the three-necked flask, get the mix monomer (the residue mix monomer is stand-by) of 30mL, join in the above-mentioned three-necked flask, temperature of reaction is constant, and the reaction times is 20min.The residue mix monomer is added drop-wise to dropping funnel in the reaction solution of three-necked flask, then splashes into initiator solution (aqueous solution of ammonium persulphate) then, and the temperature of reaction when dripping initiator solution is 70 ℃.After dropwising, continue reaction 30min.
Embodiment 2:
With the sodium lauryl sulphate (emulsifying agent) of 8g and the first water dissolution of OP-10 of 2mL, change in the three-necked flask then with 120mL.After the dibenzoyl peroxide usefulness 50mL water dissolution with 0.8g, join in the above-mentioned three-necked flask, stir with mechanical stirrer, and heating.Mix three kinds of monomers, wherein vinylformic acid ester in ninth of the ten Heavenly Stems 150mL, butyl methacrylate 90mL and vinylformic acid 10mL, when treating that the temperature of solution rises to 80 ℃ in the three-necked flask, get the mix monomer (the residue mix monomer is stand-by) of 20mL, join in the above-mentioned three-necked flask, temperature of reaction is constant, and the reaction times is 20min.The residue mix monomer is added drop-wise to dropping funnel in the reaction solution of three-necked flask, then splashes into initiator solution (aqueous solution of dibenzoyl peroxide) then, and the temperature of reaction when dripping initiator solution is 80 ℃.After dropwising, continue reaction 40min.
Embodiment 3:
With the sodium lauryl sulphate (emulsifying agent) of 10g and the first water dissolution of OP-10 of 5mL, change in the three-necked flask then with 150mL.After the Diisopropyl azodicarboxylate usefulness 50mL water dissolution with 1.0g, join in the above-mentioned three-necked flask, stir with mechanical stirrer, and heating.Mix three kinds of monomers, wherein methyl methacrylate 120mL, butyl methacrylate 100mL and methacrylic acid 6mL, when treating that the temperature of solution rises to 100 ℃ in the three-necked flask, get the mix monomer (the residue mix monomer is stand-by) of 40mL, join in the above-mentioned three-necked flask, temperature of reaction is constant, and the reaction times is 20min.The residue mix monomer is added drop-wise to dropping funnel in the reaction solution of three-necked flask, then splashes into initiator solution (aqueous solution of Diisopropyl azodicarboxylate) then, and the temperature of reaction when dripping initiator solution is 100 ℃.After dropwising, continue reaction 15min.
The preparation technology of luminous paint
Embodiment 4:
With 5g luminescent powder CaAl 2O 4: Eu, Nd with ball mill grinding evenly after, itself and 0.15g anti-settling agent, filler (2g mica powder, 4.5g talcum powder, 3.7 fine particle calcium carbonates and 3.5g titanium dioxide) are joined in the mortar, ground and mixed is even.The ACRYLIC EMULSION and the 0.4g wetting agent of 15g embodiment 1 preparation are joined continuation grinding in the above-mentioned mortar, make coating composition fully wetting, add dispersion agent and the 0.05g defoamer of 0.5g then, continuing to be ground to does not have the obvious bulk particle.Said mixture is poured into from mortar in the flask, added the ACRYLIC EMULSION of embodiment 1 preparation of 15g then, and carry out high-speed stirring 25min.Film coalescence aid and 0.1g defoamer with 0.1g joins in the flask then, continues to stir 20min.After stirring finishes, make the long afterglow luminous paint, with the product bottling, and sealing is preserved.
Embodiment 5:
With 7.2g luminescent powder SrAl 2O 4: Dy, Eu with ball mill grinding evenly after, itself and 0.25g anti-settling agent, filler (2.5g mica powder, 5g talcum powder, 4 fine particle calcium carbonates and 3g titanium dioxide) are joined in the mortar, ground and mixed is even.The ACRYLIC EMULSION and the 0.2g wetting agent of 15g embodiment 2 preparations are joined continuation grinding in the above-mentioned mortar, make coating composition fully wetting, add dispersion agent and the 0.15g defoamer of 0.45g then, continuing to be ground to does not have the obvious bulk particle.Said mixture is poured into from mortar in the flask, added the ACRYLIC EMULSION of 10g embodiment 2 preparations then, and carry out high-speed stirring 15min.Film coalescence aid and 0.15g defoamer with 0.15g joins in the flask then, continues to stir 30min.After stirring finishes, make the long afterglow luminous paint, with the product bottling, and sealing is preserved.
Embodiment 6:
With 6g luminescent powder SrAl 2O 4: Eu with ball mill grinding evenly after, itself and 0.2g anti-settling agent, filler (1.5g mica powder, 6g talcum powder, 3.0g fine particle calcium carbonate and 2g titanium dioxide) are joined in the mortar, ground and mixed is even.The ACRYLIC EMULSION and the 0.4g wetting agent of 25g embodiment 3 preparations are joined continuation grinding in the above-mentioned mortar, make coating composition fully wetting, add dispersion agent and the 0.2g defoamer of 0.3g then, continuing to be ground to does not have the obvious bulk particle.Said mixture is poured into from mortar in the flask, added the ACRYLIC EMULSION of 10g embodiment 3 preparations then, and carry out high-speed stirring 15min.Film coalescence aid and 0.2g defoamer with 0.15g joins in the flask then, continues to stir 60min.After stirring finishes, make the long afterglow luminous paint, with the product bottling, and sealing is preserved.
The preparation of filming and the detection of film performance
Embodiment 7:
Embodiment 4 preparation luminous paints are cured film forming with the tinplate sheet as base material, the sticking power of filming that utilizes QFZ type Coating adhesion test instrument to survey then is secondary, utilize the QHQ type pencil scratch hardness instrument of filming to record the pencil hardness of filming and be 2H, utilize QCJ type paint film impactor to record the anti-impact force of filming and be 50cm.
Embodiment 8:
Embodiment 5 preparation luminous paints are cured film forming with the tinplate sheet as base material, the sticking power of filming that utilizes QFZ type Coating adhesion test instrument to survey then is three grades, utilize the QHQ type pencil scratch hardness instrument of filming to record the pencil hardness of filming and be HB, utilize QCJ type paint film impactor to record the anti-impact force of filming and be 50cm.
Embodiment 9:
Embodiment 6 preparation luminous paints are cured film forming with the tinplate sheet as base material, the sticking power of filming that utilizes QFZ type Coating adhesion test instrument to survey then is three grades, utilize the QHQ type pencil scratch hardness instrument of filming to record the pencil hardness of filming and be 3H, utilize QCJ type paint film impactor to record the anti-impact force of filming and be 50cm.

Claims (8)

1. the preparation method of a multi-color long afterglow water borne luminescent coatings, it is characterized in that: the high molecular polymer that is formed by the mutual polyreaction of initiator by three kinds of monomers is an ACRYLIC EMULSION, with the binder resin of synthetic ACRYLIC EMULSION as coating, and interpolation luminescent powder, auxiliary agent and filler prepare multi-color long afterglow water borne luminescent coatings.
2. a kind of preparation method of multi-color long afterglow water borne luminescent coatings according to claim 1 is characterized in that above-mentioned three kinds of used monomers have the structure of formula 1 representative:
Formula 1
Wherein:
R 1Representing H atom or carbonatoms is 1~5 alkyl;
R 2Representing H atom or carbonatoms is 1~10 alkyl.
3. a kind of preparation method of multi-color long afterglow water borne luminescent coatings according to claim 1, it is characterized in that: in polymerization process, polymerization temperature is 60~100 ℃, and the reaction times is 5~20min.
4. a kind of preparation method of multi-color long afterglow water borne luminescent coatings according to claim 1, it is characterized in that: used initiator is the aqueous solution of ammonium persulphate, dibenzoyl peroxide or Diisopropyl azodicarboxylate, its strength of solution is 0.01g/mL~0.02g/mL.
5. a kind of preparation method of multi-color long afterglow water borne luminescent coatings according to claim 1, it is characterized in that: used luminescent powder is rare-earth activated alkali earth metal aluminate, is specially CaAl 2O 4: Eu, Nd, or SrAl 2O 4: Dy, Eu or SrAl 2O 4: Eu, the consumption of luminescent powder account for the coating of preparing quality 10%~15%.
6. a kind of preparation method of multi-color long afterglow water borne luminescent coatings according to claim 1, it is characterized in that: used auxiliary agent is anti-settling agent, wetting agent, dispersion agent, defoamer and film coalescence aid; Wherein anti-settling agent is an aerosil, and wetting agent is an alcohol ester-12, and dispersion agent is a Sodium hexametaphosphate 99, and defoamer is a tbp, and film coalescence aid is a Texanol ester alcohol.
7. a kind of preparation method of multi-color long afterglow water borne luminescent coatings according to claim 1, it is characterized in that: used filler is mica powder, talcum powder, fine particle calcium carbonate and titanium dioxide, the consumption of filler account for the coating of preparing quality 21%~30%.
8. as the preparation method of a kind of multi-color long afterglow water borne luminescent coatings as described in the claim 6, it is characterized in that: the consumption of above-mentioned anti-settling agent account for the coating of preparing quality 0.3%~0.5%, the consumption of wetting agent account for the coating of preparing quality 0.4%~0.8%, the consumption of dispersion agent account for the coating of preparing quality 0.6%~1.0%, the consumption of defoamer account for the coating of preparing quality 0.3%~0.7%, the consumption of film coalescence aid account for the coating of preparing quality 0.2%~0.3%.
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CN104164151A (en) * 2014-07-24 2014-11-26 汉川市小神龙儿童用品有限公司 Environmentally-friendly organic photochromic aqueous polymer paint and preparation method thereof
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CN104479437A (en) * 2015-01-06 2015-04-01 东华大学 Preparation method for super-hydrophobic self-luminous coating
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CN111234641A (en) * 2020-03-23 2020-06-05 深圳安盾海洋新材料有限公司 Water-based acrylic energy-storage luminescent paint and preparation method thereof
CN111234641B (en) * 2020-03-23 2021-11-19 深圳安盾海洋新材料有限公司 Water-based acrylic energy-storage luminescent paint and preparation method thereof
CN111253820A (en) * 2020-04-17 2020-06-09 贾超 Self-luminous wear-resistant road marking paint and preparation and construction method thereof
CN111607258A (en) * 2020-06-09 2020-09-01 安徽昂然节能环保科技有限公司 Self-luminous decal paper for underglaze and printing method thereof

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