CN107722819A - A kind of photocatalysis antibacterial coating and preparation method thereof - Google Patents

A kind of photocatalysis antibacterial coating and preparation method thereof Download PDF

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Publication number
CN107722819A
CN107722819A CN201710947003.XA CN201710947003A CN107722819A CN 107722819 A CN107722819 A CN 107722819A CN 201710947003 A CN201710947003 A CN 201710947003A CN 107722819 A CN107722819 A CN 107722819A
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preparation
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antibacterial coating
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mixing
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王玉红
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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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/671—Unsaturated compounds having only one group containing active hydrogen
    • C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3009—Sulfides
    • 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
    • C08K2201/001—Conductive additives
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/26—Silicon- containing compounds
    • 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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/02—Ingredients treated with inorganic substances

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Plant Pathology (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses a kind of photocatalysis antibacterial coating and preparation method thereof,By polyurethane resin,Hydroxyethyl methacrylate,Titanium dioxide,Calcium carbonate,Graphite,Potassium permanganate,Hollow powder coal ash microballon,The raw materials such as zinc acetate are made,The present invention is by titanium dioxide,The coating filler combination such as calcium carbonate graphite oxide modification zinc sulphide composite, which is added in polyurethane solutions system, to be mixed,Avoid the drawbacks of reuniting between the particle that conventional drying technique is brought,Make paint ingredient is scattered to be more uniformly distributed,It is compound by the graphite oxide with satisfactory electrical conductivity and superhigh specific surface area and zinc sulphide progress,Effectively improve photocatalysis efficiency,Extremely strong oxidisability enables efficiently to destroy bacterial structure under catalytic action,So as to serve preferable bactericidal action,This preparation method for coating is simple simultaneously,Anti-microbial property is notable,Meet demand of the modern society people to health environment.

Description

A kind of photocatalysis antibacterial coating and preparation method thereof
Technical field
The present invention relates to technical field of paint preparation, more particularly to a kind of photocatalysis antibacterial coating and preparation method thereof.
Background technology
Coating has the covering with paint effect for covering the various defects of building surface, moreover it is possible to prevent or delay oxygen in air, The destruction of moisture, ultraviolet and other harmful substances to building, so as to extend the service life of building.With economic development Population increase, the demand of commercial house increasingly increases, and in this context, the demand of building coating also rolls up, especially in State, recent years, Chinese coating demand are developed with double-digit growth speed, and the living standard of people improves constantly, To ornamental coating requirement also more and more higher, it is resistance to towards low organic solvent dosage, raising that this also require that paint industry needs Long property, hypotoxicity, antibiotic property etc. development.
Antibiotic paint refers to add antimicrobial component in coating, is the performance that coating has antibacterial, when coating is for public During place, the bacterial content of public place can be reduced, so as to reduce the probability being infected by contact with cross-infection, for private family When residence or office space, the bacterial population in furniture can be effectively reduced, improves inhabitation and office conditions, weight is served to health The protective effect wanted.
Zinc sulphide is II-VI very important wide bandgap semiconductor materials of race, and as catalysis material, it also has green Environmental protection, the characteristic such as cost is low, chemical stability is good, electron-hole pair yield height and be widely used.Especially in organic pollution The fields such as degraded, antibacterial dedusting, catalytic adsorption have high use potentiality.But zinc sulphide is during light degradation, transition The hole left in electronics and valence band into conduction band is easy to compound, reduces the catalytic degradation ability of zinc sulphide, and powder The circulation of final states zinc sulphide is catalyzed utilization ratio than relatively low.
Hollow powder coal ash microballon is a kind of industrial solid castoff of high silicon dioxide content, has light, heat-insulated, dielectric Constant is low, high-low temperature resistant, corrosion-resistant, sound insulation, compression strength height, good dispersion, good fluidity, heat endurance are good, waterproof fireproofing Etc. excellent function, its abundant raw material, valency of turning waste into wealth can be played applied to fields such as building materials, rubber, electronics and composites The cheap advantage of lattice.
The content of the invention
The defects of the object of the invention is exactly to make up prior art, there is provided a kind of photocatalysis antibacterial coating and its preparation side Method.
The present invention is achieved by the following technical solutions：
A kind of photocatalysis antibacterial coating, is prepared by the following method：
（1）Polyurethane resin be crushed into 200-220 mesh sieves, be added to by solid-to-liquid ratio 3-3.5g/mL in dimethylbenzene, heat temperature raising To 50-55 DEG C, then the hydroxyethyl methacrylate of 15-18% volume parts is added thereto, room is cooled to after being incubated 4-5 hours Temperature, with 1200-1500 revs/min of stirring 20-30 minute, obtain uniform polyurethane solutions system；
（2）By graphite and potassium permanganate in mass ratio 1：With solid-to-liquid ratio 1 under ice bath after 6-7 mixing：18-22g/mL adds mixing Acid, then 50-55 DEG C and stirring reaction 8-10 hours are warming up to, mixed acid 0.04-0.05 is finally added into reaction product successively Times 30% hydrogenperoxide steam generator of volume and 36% hydrochloric acid solution of 1-1.25 times of volume, stirring reaction 90-120 minutes, after the completion of Product is centrifuged and washed to neutrality, is dried more than 48 hours under 50-60 DEG C of vacuum environment, it is standby to obtain pretreatment graphite oxide With；
（3）Hollow powder coal ash microballon 3-5 parts, pretreatment graphite oxide 0.8-1 parts, dimethyl sulfoxide (DMSO) 20-22 are weighed by weight Part, zinc acetate 0.05-0.08 parts, first take hollow powder coal ash microballon to be placed in the water of 20-25 times of its quality, are warming up to 80-90 Microballon suspension DEG C is uniformly mixing to obtain, then adds pretreatment graphite oxide and dimethyl sulfoxide (DMSO) thereto, after ultrasonic disperse, is added Enter zinc acetate and carry out ultrasonic disperse again, mixed system is placed in pyroreaction kettle afterwards, reacted at 200-240 DEG C 10-12 hours, after the completion of by product through centrifugation wash, under 50-60 DEG C of vacuum environment dry to pulverulence, obtain zinc sulphide and answer Condensation material is standby；
（4）By titanium dioxide, calcium carbonate 3-4 in mass ratio:It is levigate in feeding ball mill after 1 mixing to cross 230-250 mesh sieves, by gained Powder and step 3 gained zinc sulphide composite 8-10 in mass ratio：It is immersed in after 1 mixing in acetone soln, 5-10 points of stirring Rotary evaporation steams solvent after clock, and product is dried；
（5）Drying product obtained by step 4 is dissolved in step 1 gained polyurethane solutions system by solid-to-liquid ratio 1-1.5g/mL, stirred Coating of the present invention is produced after uniformly.
The triethylamine acceleration of 0.1-0.2% volume parts is added after hydroxyethyl methacrylate is added in the step 1 instead Should, cooling and stirring again was incubated after 2-2.5 hours.
In the step 2 mixed acid by 98% sulfuric acid and 85% phosphoric acid by volume (8-8.5):(1-1.5) is mixed.
The condition of ultrasonic disperse is followed successively by ultrasonic 15-25 minutes and 25- under 32-35kHz twice in the step 3 Ultrasonic 5-10 minutes under 26kHz.
The temperature of rotary evaporation is 60-80 DEG C in the step 4.
It is an advantage of the invention that：
The coating filler combination such as titanium dioxide, calcium carbonate graphite oxide modification zinc sulphide composite is added to poly- ammonia by the present invention Mixed in ester solution system, avoid the drawbacks of reuniting between the particle that conventional drying technique is brought, make paint ingredient scattered more Uniformly, it is compound by the graphite oxide with satisfactory electrical conductivity and superhigh specific surface area and zinc sulphide progress, not only contribute to dirt The absorption of thing organic molecule is contaminated, but also the efficiency of light absorption and photo-generate electron-hole pair of zinc sulphide materials can be effectively improved Separative efficiency, stable chemical bond joining between its graphene conjugated structure and semiconductor material interface, be advantageous to accelerate thing Electronics shifts between matter interface, and then effectively improves photocatalysis efficiency, and extremely strong oxidisability enables efficiently under catalytic action Destruction bacterial structure, it is on this basis that the extremely strong hollow powder coal ash of stability is micro- so as to serve preferable bactericidal action Pearl is introduced into composite modified technique, makes it carry zinc sulphide/oxidized graphite composite material, is greatly enhanced in the immobilized environment of absorption The ability of pollutant, the function of coating pair and noxious substance in air is imparted, preparation method for coating of the present invention is simple, resists Bacterium performance is notable, meets demand of the modern society people to health environment.
Embodiment
A kind of photocatalysis antibacterial coating, is prepared by the following method：
（1）Polyurethane resin be crushed into 200 mesh sieves, be added to by solid-to-liquid ratio 3g/mL in dimethylbenzene, be heated to 50 DEG C, Adding the hydroxyethyl methacrylate of 15% volume parts thereto again, the triethylamine for adding 0.1% volume parts accelerates reaction, Insulation is cooled to room temperature after 2 hours, is stirred 20 minutes with 1200 revs/min, obtains uniform polyurethane solutions system；
（2）By graphite and potassium permanganate in mass ratio 1：With solid-to-liquid ratio 1 under ice bath after 6 mixing：18g/mL adds mixed acid, then It is warming up to 50 DEG C and stirring reaction 8 hours, wherein mixed acid is by 98% sulfuric acid and 85% phosphoric acid by volume 8:1.5 mix, Finally into reaction product, 30% hydrogenperoxide steam generator of addition 0.04 times of volume of mixed acid and 36% hydrochloric acid of 1 times of volume are molten successively Liquid, stirring reaction 90 minutes, after the completion of product is centrifuged and washed to neutrality, under 50 DEG C of vacuum environments dry 48 hours with On, it is standby to obtain pretreatment graphite oxide；
（3）3 parts of hollow powder coal ash microballon, 0.8 part of graphite oxide of pretreatment, 20 parts of dimethyl sulfoxide (DMSO), acetic acid are weighed by weight 0.05 part of zinc, first takes hollow powder coal ash microballon to be placed in the water of 20 times of its quality, is warming up to 80 DEG C and is uniformly mixing to obtain microballon Suspension, then pretreatment graphite oxide and dimethyl sulfoxide (DMSO) are added thereto, ultrasonic disperse 20 minutes under 33kHz, add vinegar Mixed system, is placed in pyroreaction kettle, is reacted at 200 DEG C by sour zinc and again ultrasonic disperse 7 minutes under 25kHz afterwards 10 hours, after the completion of by product through centrifugation wash, under 50 DEG C of vacuum environments dry to pulverulence, obtain zinc sulphide composite It is standby；
（4）By titanium dioxide, calcium carbonate in mass ratio 3:1 mixing after be sent into ball mill in the levigate mesh sieve of mistake 230, by gained powder with Step 3 gained zinc sulphide composite in mass ratio 8：It is immersed in after 1 mixing in acetone soln, after stirring 5 minutes at 60 DEG C Rotary evaporation steams solvent, and product is dried；
（5）Drying product obtained by step 4 is dissolved in step 1 gained polyurethane solutions system by solid-to-liquid ratio 1g/mL, stirred After produce coating of the present invention.

Claims (5)

1. a kind of photocatalysis antibacterial coating, it is characterised in that be prepared by the following method：
（1）Polyurethane resin be crushed into 200-220 mesh sieves, be added to by solid-to-liquid ratio 3-3.5g/mL in dimethylbenzene, heat temperature raising To 50-55 DEG C, then the hydroxyethyl methacrylate of 15-18% volume parts is added thereto, room is cooled to after being incubated 4-5 hours Temperature, with 1200-1500 revs/min of stirring 20-30 minute, obtain uniform polyurethane solutions system；
（2）By graphite and potassium permanganate in mass ratio 1：With solid-to-liquid ratio 1 under ice bath after 6-7 mixing：18-22g/mL adds mixing Acid, then 50-55 DEG C and stirring reaction 8-10 hours are warming up to, mixed acid 0.04-0.05 is finally added into reaction product successively Times 30% hydrogenperoxide steam generator of volume and 36% hydrochloric acid solution of 1-1.25 times of volume, stirring reaction 90-120 minutes, after the completion of Product is centrifuged and washed to neutrality, is dried more than 48 hours under 50-60 DEG C of vacuum environment, it is standby to obtain pretreatment graphite oxide With；
（3）Hollow powder coal ash microballon 3-5 parts, pretreatment graphite oxide 0.8-1 parts, dimethyl sulfoxide (DMSO) 20-22 are weighed by weight Part, zinc acetate 0.05-0.08 parts, first take hollow powder coal ash microballon to be placed in the water of 20-25 times of its quality, are warming up to 80-90 Microballon suspension DEG C is uniformly mixing to obtain, then adds pretreatment graphite oxide and dimethyl sulfoxide (DMSO) thereto, after ultrasonic disperse, is added Enter zinc acetate and carry out ultrasonic disperse again, mixed system is placed in pyroreaction kettle afterwards, reacted at 200-240 DEG C 10-12 hours, after the completion of by product through centrifugation wash, under 50-60 DEG C of vacuum environment dry to pulverulence, obtain zinc sulphide and answer Condensation material is standby；
（4）By titanium dioxide, calcium carbonate 3-4 in mass ratio:It is levigate in feeding ball mill after 1 mixing to cross 230-250 mesh sieves, by gained Powder and step 3 gained zinc sulphide composite 8-10 in mass ratio：It is immersed in after 1 mixing in acetone soln, 5-10 points of stirring Rotary evaporation steams solvent after clock, and product is dried；
（5）Drying product obtained by step 4 is dissolved in step 1 gained polyurethane solutions system by solid-to-liquid ratio 1-1.5g/mL, stirred Coating of the present invention is produced after uniformly.
2. the preparation method of photocatalysis antibacterial coating according to claim 1, it is characterised in that added in the step 1 The triethylamine that 0.1-0.2% volume parts are added after hydroxyethyl methacrylate accelerates reaction, cold again after being incubated 2-2.5 hours But stir.
3. the preparation method of photocatalysis antibacterial coating according to claim 1, it is characterised in that mixed in the step 2 Acid by 98% sulfuric acid and 85% phosphoric acid by volume (8-8.5):(1-1.5) is mixed.
4. the preparation method of photocatalysis antibacterial coating according to claim 1, it is characterised in that in the step 3 twice The condition of ultrasonic disperse is followed successively by under 32-35kHz ultrasonic 5-10 minutes under ultrasonic 15-25 minutes and 25-26kHz.
5. the preparation method of photocatalysis antibacterial coating according to claim 1, it is characterised in that rotated in the step 4 The temperature of evaporation is 60-80 DEG C.
CN201710947003.XA 2017-10-12 2017-10-12 A kind of photocatalysis antibacterial coating and preparation method thereof Pending CN107722819A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103409028A (en) * 2013-07-29 2013-11-27 复旦大学 Photocatalytic type self-repairing super-hydrophobic coating and preparation method thereof
CN104761882A (en) * 2015-04-24 2015-07-08 青岛墨烯产业科技有限公司 Preparation method for oxidized graphene/water-soluble polyurethane composite material
CN106928763A (en) * 2017-04-24 2017-07-07 四川嘉宝莉涂料有限公司 A kind of preparation method of antibacterial aqueous polyurethane coating

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103409028A (en) * 2013-07-29 2013-11-27 复旦大学 Photocatalytic type self-repairing super-hydrophobic coating and preparation method thereof
CN104761882A (en) * 2015-04-24 2015-07-08 青岛墨烯产业科技有限公司 Preparation method for oxidized graphene/water-soluble polyurethane composite material
CN106928763A (en) * 2017-04-24 2017-07-07 四川嘉宝莉涂料有限公司 A kind of preparation method of antibacterial aqueous polyurethane coating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
铁伟伟等: "原位反应制备ZnS/还原氧化石墨烯复合材料及其光催化性能", 《复合材料学报》 *

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Application publication date: 20180223