CN102585691A - Ultraviolet-cured hydrophilic coating composition and preparation method thereof - Google Patents

Ultraviolet-cured hydrophilic coating composition and preparation method thereof Download PDF

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CN102585691A
CN102585691A CN2012100313990A CN201210031399A CN102585691A CN 102585691 A CN102585691 A CN 102585691A CN 2012100313990 A CN2012100313990 A CN 2012100313990A CN 201210031399 A CN201210031399 A CN 201210031399A CN 102585691 A CN102585691 A CN 102585691A
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light
polymerization
hydrophilic coating
ultraviolet
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CN102585691B (en
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柳舒
雷洪素
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CHANGSHA YUANPENG CHEMICAL TECHNOLOGY Co Ltd
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CHANGSHA YUANPENG CHEMICAL TECHNOLOGY Co Ltd
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Abstract

The invention relates to a highly-hydrophilic transparent ultraviolet-cured coating composition and a preparation method thereof. The ultraviolet-cured hydrophilic coating composition comprises light-cured resin, a polymerization monomer, a reactive diluent, a light initiator, an auxiliary and pigment. The preparation method comprises accurately weighing the light-cured resin according to a formula and pouring the light-cured resin into a mixing kettle, sequentially adding the polymerization monomer, the reactive diluent and the auxiliary into the mixing kettle, and stirring the mixture for 20-45 minutes; adding the light initiator into the mixing kettle, mixing for 15-35 minutes to obtain ultraviolet-cured hydrophilic coating, and storing the ultraviolet-cured hydrophilic coating away from the light; and when the ultraviolet-cured hydrophilic coating is used, adding the pigment and performing even mixing. The ultraviolet-cured hydrophilic coating composition can be coated on base materials of plastic, metal, glass and the like. An ultraviolet-cured coating has excellent hydrophilcity and good physical performance, adhesive force, hydrolytic resistance, salt fog resistance and alkali resistance.

Description

A kind of ultraviolet light polymerization hydrophilic coating compositions and preparation method thereof
Technical field
The invention belongs to the ultraviolet-curing paint technical field, particularly a kind of transparent ultraviolet cured paint composition and preparation method thereof with high-hydrophilic.
Background technology
The continuous improvement of Along with people's standard of living; Industry and sphere of life improve hydrophilic requirement day by day, have expedited the emergence of the application at multiple base materials such as woodenware, paper, plastics, leather, metal, glass, pottery, optical fiber, printed substrate, electronic devices and components encapsulation.Hydrophilic coating has obtained fine application on the air conditioning machinery product especially; Appearance in succession along with national energy conservation and Law on Environmental Protection; Air-conditioning constantly develops to miniaturized, lightweight and high performance direction, to the function and the demands for higher performance of idle call aluminium fin; The heat exchanger of air condition radiator element is to process with the thick aluminium foil in the 1mm left and right sides, in order to obtain good performance, adopts the aluminium foil cooling fin of small pieces distance, complicated sheet shape usually; During air conditioner refrigeration, airborne steam coagulation also is attached to fin surface, between fin, forms " water bridge ", causes ventilation resistance to increase, and noise increases, and the working efficiency of heat exchanger descends, and energy consumption increases; Aluminium foil at the conditioner of cooling-heating room dual-purpose, is in the environment of dried ~ wet alternate if directly be used for heat radiator fin in the use, form oxygen concentration cell, is prone to be corroded, and generates Al 2O 3.3H 2The white powder thing of O is commonly called as " white powder ", under wet environment, makes the interchanger intussusception bacterium of mildewing, and sends into indoor with the wind and contaminate environment.In order well to solve problems such as " water bridge ", " white powder ", must carry out top coat to aluminium foil and handle, make it have good anti-corrosion and high-hydrophilic ability.
Chinese patent CN101914175A provides a kind of preparation method of self-initiation ultraviolet-curing amphiphilic macromolecular resin, belongs to no light trigger ultraviolet light polymerization (UV) technology and photosensitive macromolecular material technical field; The present invention is in the same place photoactive substance tonka bean camphor and amphiphilic vinyl resin through the vulcabond bridge joint, give the ability of conventional acrylic resin self-initiation ultraviolet-curing, obtains a kind of self-initiation ultraviolet-curing amphiphilic macromolecular resin; This macromolecule resin in use need not to add light trigger, in particular range of wavelengths, just can realize from causing the photopolymerization curing cross-linked; It has satisfactory stability property, low temperature fast setting ability and environment friendly, can be used for fields such as functional paint, photovaltaic material, sensitive materials, microelectronic material, biomaterial; But this coating need keep in Dark Place, and generates gel easily.
Chinese patent CN1869139A provide a kind of ultraviolet light solidfication water polyurethane acrylate paint resin and preparation method thereof; Mainly process with raw materials such as aromatic diisocyanate, polyoxyethylene glycol, multi-hydroxy carboxy acid, divalent alcohol, Rocryl 400 (or Rocryl 410), triethylamines; At first polyoxyethylene glycol is added drop-wise in the aromatic diisocyanate, reaction obtains base polyurethane prepolymer for use as I; Join the multi-hydroxy carboxy acid among the base polyurethane prepolymer for use as I then, drip divalent alcohol again, reaction obtains base polyurethane prepolymer for use as II; Be added drop-wise to the Rocryl 400 that is added with stopper (or Rocryl 410) among the base polyurethane prepolymer for use as II, reaction obtains polyurethane acrylic ester oligomer again; Add triethylamine in the oligopolymer and be carried out to reactant salt; Add entry again; Stir; Emulsification obtains ultraviolet light solidfication water polyurethane acrylate paint resin, and this coating resin has splendid water-soluble, good snappiness, laser curing velocity faster, and the stability of emulsion behind the dilute with water is fine; But the hydrophobic monomer of this kind coating is less, and hydrophilicity can not get continuing to ensure, and alkaline-resisting salt spray resistance is poor.
Chinese patent CN102226049A provides a kind of printable CD to use the ultraviolet light polymerization waterproof ink; The present invention relates to a kind of ultraviolet light polymerization waterproof ink; Gross weight with said printing ink is a benchmark, and it is made up of following component: water-soluble monomer 13%~16%; Water soluble resin 15%~21%; Hydrophobic monomer 21%~25%; Hydrophobic resin 7%~12%; Dispersion agent 1%~3%; Light trigger 5%~10%; Additive 22%~32%.The wetting ability and the hydrophobicity of the present invention's prescription are reached balance, and wherein hydrophilic monomer and hydrophilic resin form the coating that can absorb ink after through the UV crosslinking curing; And while hydrophobic monomer and hydrophobic resin form hydrophobic coating after solidifying, thereby make printing ink have water-proof function; Because the additive among the present invention is too many, can not get continual and steady high hydrophilic filming.
Chinese patent CN101974143A provides a kind of organic-silicon-modified propylene oxide acid esters water dispersion and preparation method thereof; This method is to carry out earlier compositely with polyether-type epoxide diluent and epoxy resin, reacts with Acrylic Acid Monomer and obtains the low viscosity epoxy acrylic ester prepolymer; With MALEIC ANHYDRIDE it is carried out graft modification then, on molecular chain, introduce hydrophilic radical; With small molecules amido silicon oil and the composite neutralizing agent of processing of organic bases, system is neutralized at last, thin up disperses, and regulates solid content and viscosity, obtains the organic-silicon-modified propylene oxide acid esters water dispersion of uV curable.This organic-silicon-modified propylene oxide acid esters water dispersion has the high solids content and 1,500~5 more than 60%, the LV of 500mPa.s.Filming behind ultraviolet light polymerization has the high firmness of 4H~6H, good snappiness and excellent in water resistance, and water-intake rate is low to moderate below 5.0%, can be applicable to fields such as furniture, building, household electrical appliance, papermaking printing; Because coating hardness of the present invention is very high, can not well be used in coiled material, dope viscosity is unfavorable for construction greatly.
Chinese patent CN1322037C provides a kind of automatically cleaning plastics and working method thereof; At first on plastic basis material, a) apply and curing silicone coating (a); B) will bring up to the numerical value that is at least 10mN/m through the polar component of solidified silicon coating surface energy, and c) apply and solidify the coating (b) that comprises photocatalytic activity TiO2 particle.This patent rub resistance can, adhere to good; But production technique is loaded down with trivial details relatively, temperature is high, set time is long, not energy-conservation.
Chinese patent CN1984972B provides film or structural exterior material of the coating composition that a kind of use has self-cleaning performance and preparation method thereof, and coating composition comprises: the hydroxy group-containing inorganic particles that (a) has 5~30nm median size; (b) has the hydroxy group-containing inorganic particles of 0.2~5 μ m median size; (c) (wherein, R is C1~C8 aminoalkyl, glycidoxyalkyl or isocyanato-alkyl to 4 ~ n by chemical formula RnSi (OR '); R ' is C1~C6 low alkyl group; And n is 0~3 integer) expression organic silane compound; And (d) solvent.The film through using aforementioned coating composition or the base material possess hydrophilic property of structural exterior material, self-cleaning performance and stain resistance, prolongation material work-ing life preferably; But owing to use inorganic particle, preparation coating long in time limit, energy consumption is high, solvent is more, big for environment pollution simultaneously.
German patent DE 000001928409A has disclosed a kind of anti-fog coating that is made up of hydroxyalkyl acrylic or methacrylic acid ester polymer.The hydrophilic layer that forms thus can absorb water, and does not influence the transparency thereby form one deck water layer on the film surface; But because the deliquescing of coating water absorption and swelling, mechanical property descends; Can improve mechanical property though coating is crosslinked, its anti-fog performance will descend.
Japanese Patent JP H08-176466A (1996) provides a kind of anti fogging coating composite; It comprises a kind of MOX microparticle dispersion-s colloidal sol; A kind ofly contain epoxide group or its partial hydrolysate silicoorganic compound and contain a kind of AS in sulphonate, sulphonate, SULPHOSUCCINIC ACID ESTER or the carbonic ether at least; But it needs precoating layer priming paint to guarantee sticking power; In addition, it is easy to generate crackle in the thermoforming process.
In order to address the above problem, to press for that a kind of to have a lasting high-hydrophilic, high non-corrosibility, high salt fog resistance, mechanical property good, and be easy to water wetted material in multiple base material constructing operation such as plastics, metal, glass.
Summary of the invention
Technical problem to be solved by this invention is:Overcome the deficiency of existing hydrophilic coating; Provide that a kind of to have a lasting high-hydrophilic, high non-corrosibility, high salt fog resistance, mechanical property good; Sticking power is good, UV photocuring hydrophilic coating compositions of plasticity, thermotolerance, excellent in bent-resistant performance, environmental protection and energy saving and preparation method thereof.
Solving the technical scheme that its technical problem adopts is:
A kind of ultraviolet light polymerization hydrophilic coating compositions is characterized in that it is made up of light-cured resin, polymerization single polymerization monomer, reactive thinner, light trigger, auxiliary agent, pigment etc., and the weight percent of each component in coating is: light-cured resin: 25~75%; Polymerization single polymerization monomer: 12~30%; Reactive thinner: 15~35%; Light trigger: 2~10%; Auxiliary agent: 0.05~8%; Pigment: 0~2%;
Said light-cured resin is made up of one or more compsn and hydrophobicity unsaturated polyester, hydrophobicity epoxy acrylate, hydrophobicity urethane acrylate, hydrophobicity polyether acrylate, one or more the compsn in the hydrophobicity polyester acrylate in aqueous polyurethane acrylate, water-based epoxy acrylic ester, the waterborne polyester propenoate, and the mass ratio of its aqueous photo-curing resin and hydrophobicity light-cured resin is (1~1.8): 1; Said polymerization single polymerization monomer is one or more the compsn in double bond containing carboxylic acid/sulfonic acid (salt) monomer, double bond containing carboxylic monomer, the double bond containing carboxamido-group monomer; Said reactive thinner is one or more the compsn in (methyl) esters of acrylic acid reactive thinner.
In order better to realize the present invention:
As preferably, described coating composition is under UV-irradiation, and the coating after the curing can form inierpeneirating network structure.Has little, the physicals such as sticking power and hardness preferably of excellent hydrophilicity, the contact angle of water droplet on coating.
As preferably; Said light-cured resin is made up of one or more compsn and hydrophobicity unsaturated polyester, hydrophobicity epoxy acrylate, hydrophobicity urethane acrylate, hydrophobicity polyether acrylate, one or more the compsn in the hydrophobicity polyester acrylate in aqueous polyurethane acrylate, water-based epoxy acrylic ester, the waterborne polyester propenoate; The mass ratio of its aqueous photo-curing resin and hydrophobicity light-cured resin is (1~1.8): 1, and its total amount accounts for 25~75% in coating composition.Cross when low when the aqueous photo-curing resin, the wetting ability of compsn is not enough; When the aqueous photo-curing resin was too high, compsn was too hydrophilic, and the mechanical property and the water tolerance of the coating behind the ultraviolet light polymerization are relatively poor; So must strict control both ratio and total amount.The content of light-cured resin is preferred 30~65%, the mass ratio of its aqueous photo-curing resin and hydrophobicity light-cured resin preferred (1.2~1.5): 1.
As preferably, said polymerization single polymerization monomer is one or more the compsn in double bond containing carboxylic acid/sulfonic acid (salt) monomer, double bond containing carboxylic monomer, the double bond containing carboxamido-group monomer.Wherein, double bond containing carboxylic acid/sulfonic acid (salt) monomer can be (methyl) vinylformic acid (sodium), (methyl) zinc acrylate resin, methacrylic acid phosphoric acid ester, allyl group SULPHOSUCCINIC ACID ESTER, to styryl sodium sulfonate, 2-allyl group-2-propane sulfonic acid sodium, sodium vinyl sulfonate, (methyl) vinylformic acid sodium sulfonate, allyl group hydroxypropyl azochlorosulfonate acid sodium, 2-acrylamido-2-methyl propane sulfonic acid sodium; Double bond containing carboxylic monomer can be (methyl) Hydroxyethyl acrylate, (methyl) Propylene glycol monoacrylate, (methyl) hydroxybutyl acrylate, vinyl hydroxyethyl ether, vinyl hydroxyl butyl ether; Double bond containing carboxamido-group monomer can be (methyl) acrylic amide, NMA, hydroxyethyl acrylic amide, hydroxyl butyl acrylic amide, dimethylaminoethyl methacrylate, diacetone-acryloamide(DAA), vinyl imidazole, vinyl pyrrolidone or Yi Xi oxazolin.The content of polymerization single polymerization monomer in coating composition is 12~30%, and when the content of polymerization single polymerization monomer was lower than 12%, the wetting ability of compsn was poor; When the content of polymerization single polymerization monomer was higher than 30%, compsn was too hydrophilic, and the mechanical property and the water tolerance of the coating behind the ultraviolet light polymerization are relatively poor; Thereby the content of hydrophilic active oligopolymer is preferred 12~30%, more preferably 15~28%, most preferably 20~25%.
As preferably, said reactive thinner is (methyl) esters of acrylic acid, can be simple function, difunctionality and polyfunctional reactive thinner.Wherein, monofunctional diluent can be (methyl) methyl acrylate, (methyl) ethyl propenoate, n-butyl acrylate, Isooctyl acrylate monomer, isodecyl acrylate, lauryl acrylate, (methyl) Hydroxyethyl acrylate, (methyl) Propylene glycol monoacrylate, SY-Monomer G, isobornyl methacrylate, methylacrylic acid THF methyl esters, vinylformic acid phenoxy ethyl etc.; Two monofunctional diluent can be 1,6 hexanediol diacrylate, neopentylglycol diacrylate, two contract propylene glycol diacrylate, tripropylene glycol diacrylate etc.; Multifunctional thinner can be trimethylolpropane diacrylate, Viscoat 295, pentaerythritol triacrylate, tetramethylol methane tetraacrylate, two contract trimethylolpropane tetra-acrylate, Dipentaerythritol five propenoate, dipentaerythritol acrylate, ethoxylated trimethylolpropane triacrylate etc.; Be preferably (methyl) Hydroxyethyl acrylate, 1,6 hexanediol diacrylate, two contract propylene glycol diacrylate, tripropylene glycol diacrylate or Viscoat 295.The content of reactive thinner in coating composition is 15~35%, and the content of reactive thinner is lower than at 15% o'clock, and compsn is too hydrophilic, and the mechanical property and the water tolerance of the coating behind the ultraviolet light polymerization are relatively poor; When the content of reactive thinner was higher than 35%, the wetting ability of compsn was not enough, the coating hydrophilic poor-performing behind the ultraviolet light polymerization.Thereby the content of reactive thinner is preferred 15~35%, most preferably 20~30%.
As preferably; Said light trigger is a 4-methyldiphenyl ketone, 2; 4; 6-tri-methyl benzophenone, tetramethyl-Michler's keton (MK), tetraethyl-Michler's keton (DEMK), the first and second basic Michler's ketons (MEMK), isopropyl thioxanthone (ITX), 2-chlorothiaxanthenone (CTX), 1-chloro-4-propoxy-thioxanthone (CPTX), 2, the compsn of one or more in 4-diethyl thioxanthone (DETX), 2-hydroxy-2-methyl-1-phenyl-acetone, the 1-hydroxycyclohexylphenylketone; Preferred 4-methyldiphenyl ketone, 2,4,6-tri-methyl benzophenone or isopropyl thioxanthone (ITX).Under the situation of necessity, can add aided initiating in the photoinitiator system, aided initiating is to have one in the molecule at least αThe tertiary amine compounds of-H atom comprises the aliphatic category tertiary amine, for example triethylamine etc.; The ethanolamines tertiary amine, for example diethylolamine, trolamine, N-Mono Methyl Ethanol Amine, N, N-dimethylethanolamine, N, N-diethylethanolamine etc.; Tertiary amine-type benzoates, for example 4-dimethyl ethyl aminobenzoate (EDAB or EPA), ODAB (or EHA), Quantacure DMB etc.; Tertiary amine esters of acrylic acid reactive amines, the compound that for example directly makes through Michael reaction by secondary amine such as diethylamine or diethylolamine and two functional group propenoic acid esters or multi-functional acrylate; Aided initiating can use or make up use separately, and this aided initiating can be preferably tertiary amine-type benzoates or tertiary amine esters of acrylic acid reactive amines, more preferably 4-dimethyl ethyl aminobenzoate (EDAB or EPA).The content of light trigger in compsn is 2~10%.
As preferably, said auxiliary agent is one or more the compsn in skimmer, flow agent, wetting dispersing agent, matting agent, the stopper.Wherein, skimmer can be lower alcohol (like ethanol, propyl carbinol), organically-modified compound (like tributyl phosphate, metallic soap), MO, organic polymer (like polyethers, polyacrylic ester), silicone resin (like polydimethyl siloxane fluid, modified polyorganosiloxane) etc.; Flow agent can be polyacrylic ester, silicone resin and fluorine surfactant; Wetting dispersing agent can be that natural polymer subclass (like Yelkin TTS), synthetic macromolecule class (like the acid and the polyamino salt of long-chain polyester), polyvalent carboxylic acid's salt, silicon system and titanium are coupling agent etc.; Matting agent can be metallic soap (like StAl, zinc, calcium salt etc.), modified oil (like tung oil), macromolecule wax (like polyethylene wax, Poly Propylene Wax, tetrafluoroethylene wax), functional filler (like zeyssatite, gas phase sio2) etc.; Stopper can be a p methoxy phenol, 2,5-dimethyl-Resorcinol, hydroxyanisol, Resorcinol, 2,6-toluene di-tert-butyl phenol etc.The content of auxiliary agent in compsn is 0.05~8%.
As preferably, described pigment is one or more the compsn in white, black or the coloured pigment.Wherein, white pigment can be titanium oxide, zinc oxide, lithopone, white lead etc.; Black pigment can be carbon black, graphite, iron oxide black, nigrosine etc.; Coloured pigment can be bronze red (PR21), Lithol Red (PR49), Pigment red G (PR37), red iron oxide, Fast Yellow G (PY1 claims the Chinese husky yellow G again), the husky yellow R (PY10) of the Chinese, permanent yellow GR (PY13), Pigment Yellow 73 (PY129), iron oxide yellow, phthalocyanine blue (PB15), indanthrone (PB60), Reflex Blue paste AG (PB61), lost indigo plant, ultramarine, Phthalocyanine Green G (PG7), Pigment green (PG8), gold-tinted copper phthalcyanine (PG36), chromoxide green, solid orange G (PO13), solid orange HL (PO36), quinacridone violet (PV19), permanent violet RL (PV23), manganese violet (PV16), solid brown HSR (PBr25), purplish red purple (PBr26), iron oxide brown (PBr6) etc. forever forever forever.The content of pigment in compsn is 0~2%.
The present invention also provides the preparation method of above-mentioned ultraviolet light polymerization hydrophilic coating compositions; Its operation steps is: accurately take by weighing light-cured resin by prescription and pour in the compounding kettle; Add said polymerization single polymerization monomer, reactive thinner and auxiliary agent more successively, stirred 20~45 minutes; Add light trigger then, mix promptly making the ultraviolet light polymerization hydrophilic coating in 15~35 minutes, keep in Dark Place; Pigment adds in use, stirs to get final product.
Relative prior art the invention has the beneficial effects as follows:
Production technique is simple, but under UV-irradiation fast setting, production efficiency height and energy consumption are low; Transparent substrate, metal coiled material or glass applicable to various thermo-sensitivitys; Do not contain organic solvent, solvent-free volatilization during coating curing can not pollute environment; The hydroaropic substance content of component is high, and hydrophilicity is excellent; Coating composition is under UV-irradiation, and the coating after the curing can form inierpeneirating network structure, superior such as its sticking power, hardness, scratch resistance, wear resistance, water tolerance; Simultaneously non-corrosibility, salt fog resistance, plasticity, thermotolerance, bending resistance are better.
Embodiment
According to client's actual needs, through adjustment invention prescription, can obtain needed product effect, through embodiment the present invention is described further below, but and does not mean that qualification protection domain of the present invention.
Accurately take by weighing light-cured resin by prescription and pour in the compounding kettle, add said polymerization single polymerization monomer, reactive thinner and auxiliary agent more successively, stirred 20~45 minutes; Add light trigger then, mix promptly making the ultraviolet light polymerization hydrophilic coating in 15~35 minutes, keep in Dark Place; Pigment adds in use, stirs to get final product.The coating composition prescription is as shown in table 1:
Figure 237111DEST_PATH_IMAGE001
The ultraviolet light polymerization hydrophilic coating compositions roller coat of the present invention of the foregoing description preparation in aluminium foil, PC, glass pane surface, is made radiation source irradiates 5s with the uv lamp of 4KW, solidify and then model is carried out each item performance test and evaluation, experimental result is as shown in table 2:
Figure 632321DEST_PATH_IMAGE002
Performance test methods is:
Hydrophilic angle of initial stage: on the sample that is cured, splash into the deionized water drop of 0.03cc (milliliter), in 20-25 ℃ of scope, adopt the contact angle tester to measure the angle of water droplet and test piece.
The drying and watering cycle angle: in pure water, soaked 2 minutes, mentioned then air-dry 6 minutes, be a circulation, continuous 300 circulations are taken out then and are measured its hydrophilic angle.
Water boiling resistance property: in 100 ℃ of boiling water, boiled 30 minutes, see phenomenons such as whether coating has swelling, come off.
Sticking power: with reference to standard GB/T 9286 " cross cut test of paint and varnish paint film ".
Pencil hardness: with reference to standard GB/T6739 " hardness of paint film pencil assay method ".
Alkali resistance: soaked 5 minutes in the 10%NaOH solution (20 ℃), see coating whether have turn white, bubble and obscission.
Salt fog resistance: with reference to standard GB/T 1771-2007 " mensuration of the anti-neutral salt spray performance of paint and varnish ".
Appearance of film: adopt visual inspection.
Stink: according to 5 people's sense of smell test.
Can find out that from the performance comparison of test-results embodiment has the excellent comprehensive performance, the base material range of adaptation is wide.
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination or simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (5)

1. ultraviolet light polymerization hydrophilic coating compositions is characterized in that it is made up of light-cured resin, polymerization single polymerization monomer, reactive thinner, light trigger, auxiliary agent, pigment etc., and the weight percent of each component in coating is: light-cured resin: 25~75%; Polymerization single polymerization monomer: 12~30%; Reactive thinner: 15~35%; Light trigger: 2~10%; Auxiliary agent: 0.05~8%; Pigment: 0~2%;
Said light-cured resin is made up of one or more compsn and hydrophobicity unsaturated polyester, hydrophobicity epoxy acrylate, hydrophobicity urethane acrylate, hydrophobicity polyether acrylate, one or more the compsn in the hydrophobicity polyester acrylate in aqueous polyurethane acrylate, water-based epoxy acrylic ester, the waterborne polyester propenoate, and the mass ratio of its aqueous photo-curing resin and hydrophobicity light-cured resin is (1~1.8): 1; Said polymerization single polymerization monomer is one or more the compsn in double bond containing carboxylic acid/sulfonic acid (salt) monomer, double bond containing carboxylic monomer, the double bond containing carboxamido-group monomer; Said reactive thinner is one or more the compsn in (methyl) esters of acrylic acid reactive thinner.
2. ultraviolet light polymerization hydrophilic coating compositions according to claim 1; It is characterized in that described light trigger is a 4-methyldiphenyl ketone, 2; 4; 6-tri-methyl benzophenone, tetramethyl-Michler's keton (MK), tetraethyl-Michler's keton (DEMK), the first and second basic Michler's ketons (MEMK), isopropyl thioxanthone (ITX), 2-chlorothiaxanthenone (CTX), 1-chloro-4-propoxy-thioxanthone (CPTX), 2, the compsn of one or more in 4-diethyl thioxanthone (DETX), 2-hydroxy-2-methyl-1-phenyl-acetone, the 1-hydroxycyclohexylphenylketone.
3. ultraviolet light polymerization hydrophilic coating compositions according to claim 1 is characterized in that described auxiliary agent is one or more the compsn in skimmer, flow agent, wetting dispersing agent, matting agent, the stopper.
4. ultraviolet light polymerization hydrophilic coating compositions according to claim 1 is characterized in that described pigment is one or more the compsn in white, black or the coloured pigment.
5. according to any described ultraviolet light polymerization hydrophilic coating compositions preparation method in the claim 1 to 4, it is characterized in that operation steps is following:
Accurately take by weighing light-cured resin by prescription and pour in the compounding kettle, add said polymerization single polymerization monomer, reactive thinner and auxiliary agent more successively, stirred 20~45 minutes; Add light trigger then, mix promptly making the ultraviolet light polymerization hydrophilic coating in 15~35 minutes, keep in Dark Place; Pigment adds in use, stirs to get final product.
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