CN102585623A - Nanometer mesoporous titanium dioxide/nanometer silica sol coating and preparation method thereof - Google Patents
Nanometer mesoporous titanium dioxide/nanometer silica sol coating and preparation method thereof Download PDFInfo
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- CN102585623A CN102585623A CN2012100666155A CN201210066615A CN102585623A CN 102585623 A CN102585623 A CN 102585623A CN 2012100666155 A CN2012100666155 A CN 2012100666155A CN 201210066615 A CN201210066615 A CN 201210066615A CN 102585623 A CN102585623 A CN 102585623A
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Abstract
The invention relates to the field of building materials, in particular to a nanometer mesoporous titanium dioxide/nanometer silica sol coating and a preparation method thereof. The coating is characterized in that nanometer mesoporous titanium dioxide particles and nanometer silica sol particles are used. The preparation method comprises the following steps of: dispersing, and grinding; putting water, powder and an aid into a dispersion machine, grinding, and filtering to obtain slurry; and performing paint mixing, namely putting emulsion, nanometer mesoporous titanium dioxide, nanometer silica sol, water and an aid into the dispersed slurry, regulating the pH value and viscosity, and thus obtaining the coating. The coating is prepared by simple processes of dispersing, sanding, filtering and the like, the defects that the conventional coating has low stain resistance and weather resistance, is not environment-friendly and the like are overcome, and the coating is endowed with good new functions such as a self-cleaning function, an antibacterial function and the like, has high storage stability, scour resistance, stain resistance and weather resistance, and is suitable for an exterior wall coating.
Description
Technical field
The present invention relates to building material field, particularly a kind of have good sticking power, weathering resistance, environment-friendly type nano mesoporous TiO 2/Nano silica sol coating of shielding ultraviolet rays and preparation method thereof.
Background technology
Because nano titanium oxide has special photocatalysis performance, Superhydrophilic, shielding ultraviolet rays performance; Apply it to coating and make it in coating, keep the nano level state; Not only can improve shortcomings such as poor, the easy contamination of existing coating weathering resistance; Also can give coating good antibacterial property, self-cleaning property and the performance that purifies air simultaneously, in southern high humidity and with serious pollution place, product has the market competitiveness.Be to use nano titanium oxide/nanometer silver coating and preparation method thereof like what announce among the granted patent ZL 200410027622.X.It all is the solid titanium oxide that adds nano-scale particle sizes that great majority are declared what use in patent and the disclosed domestic and foreign literature data, but because nano material is very tiny, its specific surface area is big; Surface free energy is high; Intermolecular attraction and electrostatic attraction are also quite high, so nanoparticle very easily reunites, even utilize methods such as sand milling, high-speed stirring that nanoparticle is dispersed in the coating; Also agglomeration can take place; Losing the due effect of nano material, how it is distributed among the base-material, is nano material key technologies for application in coating.
Summary of the invention
The object of the present invention is to provide a kind of nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof, solve existing poor, the problems such as weathering resistance is poor, not environmental protection of coating contamination resistance, give new function such as the good self-cleaning property of coating, bacterinertness simultaneously.After in coating, adding Nano silica sol, further improve the weather resisteant of exterior wall latex paint, improve the sticking power of rubber-emulsion paint, with good shielding ultraviolet rays function.
The objective of the invention is to realize through following technical scheme:
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating, this coating composition and mass percent are following: water 10 ~ 30%; Emulsion 15 ~ 40%; Nano meso-porous titanium dioxide 0.5 ~ 5%; Nano silica sol 0.5 ~ 5%; Coarse whiting 5 ~ 15%; Talcum powder 1 ~ 3%; Ucar 35 0.5 ~ 1.5%; White titanium pigment 5 ~ 25%; Wetting agent 0.05 ~ 0.4%; Skimmer 0.5 ~ 1%; Dispersion agent 0.1 ~ 0.5%; Thickening material 1 ~ 2% and film coalescence aid 0.5 ~ 2%.
OnePlant the preparation method of nano meso-porous titanium dioxide/Nano silica sol coating, this preparation method comprises following two steps:
1) disperse polishing: water, coarse whiting, talcum powder, white titanium pigment, dispersion agent, wetting agent, Ucar 35, skimmer are dropped into dispersion machine, disperseed 10 ~ 15 minutes with the rotating speed of 1500 ~ 300rpm, the sand mill with the 4000rpm rotating speed grinds filtration again, makes slurry;
2) the paint stage: emulsion, nano meso-porous titanium dioxide, Nano silica sol, water, film coalescence aid, thickening material are dropped in the slurry that step 1) makes, be transferred to Si Tuomo viscosity and reach 90-110K, make rubber-emulsion paint.
Described
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof, described emulsion is one of benzene emulsion, pure-acrylic emulsion, acrylate and vinyl acetate emulsion, organosilicon crylic acid latex or composite.
Described
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof; Described nano meso-porous titanium dioxide; With the tensio-active agent is template, utilizes chemical processes such as sol-gel emulsification or microemulsified, synthesizes through the interface interaction between organism and the inorganics.
Described
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof, described nano meso-porous titanium dioxide, shape is main with regular spherical, median size is 60～100nm; The duct is that rule has duct or random that pore passage structure is arranged, and the aperture is 10～50nm.
Described
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof, described silicon sol is an alkaline silica sol, and its grain size is at 5 ~ 100nm.
Advantage of the present invention and effect are:
1. the present invention replaces traditional solid titanium oxide of nanometer through adding nano meso-porous titanium dioxide, has solved nanoparticle easy technical barrier of reuniting in coating system well.Through adding Nano silica sol, further improved the weathering resistance of rubber-emulsion paint, sticking power, with good shielding ultraviolet rays function, use range further enlarges.The present invention is pollution-free through the obtained coating of simple process, extremely low VOC discharges, has good weathering resistance, abrasion resistance, contamination resistance, bacterinertness, self-cleaning property.
2. the use nano meso-porous titanium dioxide that proposes of the present invention is that (it has dual nanostructure to a kind of titanium dioxide granule with special construction; Be nano-scale particle sizes and nano level meso-hole structure), with in the document or the solid nano titanium oxide of reporting in the publication different.Owing to have unique pore passage structure; Polymer molecular chain can enter into the duct and go; The organic polymer chain that extends to place, mesoporous aperture can produce stronger interfacial interaction with polymeric matrix; Increase both consistencies and prevent the reunion of nanoparticle in resin matrix, form the nanometer network structure.Because its special pore passage structure makes it more be prone to homodisperse in coating matrix; Make interparticle autohemagglutination effect reduce; And be evenly dispersed in the coating with the form of nano particle, give full play to nano effect, give new function such as the good self-cleaning property of coating, bacterinertness simultaneously.
3. the present invention provides a kind of addition less than 5% the nano meso-porous titanium dioxide and the preparation method for coating of Nano silica sol, and its preparation process is under normal temperature, normal pressure, to carry out, and need not add new equipment, and technology is simple, and production cost is low.
4. declaring among the patent CN 201110147247.2 before our company is applied to the rubber-emulsion paint field with Nano silica sol, can make rubber-emulsion paint improve sticking power, and have characteristic water-fast, resistant, can also solve the weather-proof problem of rubber-emulsion paint.Propose itself and nano meso-porous titanium dioxide compositely in the present invention, further improve abrasion resistance, contamination resistance and the weathering resistance of coating, with good shielding ultraviolet rays function.
Embodiment
Nano meso-porous titanium dioxide/Nano silica sol coating, the preparation method is:
Prescription quality per-cent is following: water 10 ~ 30%; Emulsion 15 ~ 40%; Nano meso-porous titanium dioxide 0.5 ~ 5%; Nano silica sol 0.5 ~ 5%; Coarse whiting 5 ~ 15%; Talcum powder 1 ~ 3%; Ucar 35 0.5 ~ 1.5%; White titanium pigment 5 ~ 25%; Wetting agent 0.05 ~ 0.4%; Skimmer 0. 5 ~ 1%; Dispersion agent 0.1 ~ 0.5%; Thickening material 1 ~ 2% and film coalescence aid 0.5 ~ 2%.Each component percentages sum is 100%.
Disperse polishing: water, coarse whiting, talcum powder, white titanium pigment, dispersion agent, wetting agent, Ucar 35, skimmer are dropped into dispersion machine, disperseed 10 ~ 15 minutes with the rotating speed of 1500 ~ 300rpm, the sand mill with the 4000rpm rotating speed grinds filtration again, makes slurry.
The paint stage: emulsion, nano meso-porous titanium dioxide, Nano silica sol, water, film coalescence aid, thickening material are dropped in the slurry that step 1) makes, be transferred to Si Tuomo viscosity and reach 90-110K, make rubber-emulsion paint.
Wherein, dispersion agent, thickening material, wetting agent, skimmer, film coalescence aid are the frequent product that adopts of preparation coating.Dispersion agent comprises the OROTAN series dispersion agent of U.S. Rhom and Hass, the Texaphor series dispersion agent of Henkel Corp., Hydropalat series dispersion agent.The SN-DISPERSANT series dispersion agent of Japan Nuo Puke company etc.; Skimmer comprises the Foamstar series skimmer of Henkel Corp., the Byk series skimmer of German Bi Kehua company etc.; Thickening material comprises the serial thickening material of the Acrysol of U.S. Rhom and Hass, ether of cellulose thickening material etc.; Flow agent comprises the RM of U.S. Rhom and Hass series flow agent etc.; Film coalescence aid comprises the Texanol acid esters of Yi Shi Man, the Filmer series film coalescence aid of Henkel Corp. etc.Emulsion is one of benzene emulsion, pure-acrylic emulsion, acrylate and vinyl acetate emulsion, organosilicon crylic acid latex or composite.Nano meso-porous titanium dioxide is a template with the tensio-active agent, utilizes chemical processes such as sol-gel emulsification or microemulsified, synthesizes through the interface interaction between organism and the inorganics.Nano meso-porous titanium dioxide, shape are main with regular spherical, and median size is 60～100nm; The duct is that rule has duct or random that pore passage structure is arranged, and the aperture is 10～50nm.Silicon sol is an alkaline silica sol, and its grain size is at 5 ~ 100nm.
The present invention is a kind of well behaved outer wall water-based coating, can adopt modes such as brushing, common spraying, Airless spraying to construct.Specify below in conjunction with embodiment:
Embodiment one:
The preparation prescription of present embodiment is:
The slurrying stage
| Water | 200 kg |
| Wetting agent | 1 kg |
| Regulator AMP-95 | 1.5 kg |
| Dispersion agent | 5 kg |
| Skimmer | 2 kg |
| Film coalescence aid | 15 kg |
| Ucar 35 | 15 kg |
| TiO 2 | 250 kg |
| Coarse whiting | 100 kg |
| Talcum powder | 20 kg |
| Thickening material | 5 kg |
The high speed dispersion sand milling gets into the paint stage.
| Benzene emulsion 296D-S | 320 kg |
| Skimmer | 0.5 kg |
| Nano silica sol | 25 kg |
| Nano meso-porous titanium dioxide | 25kg |
| Thickening material | 5 kg |
| Water | 10 kg |
| Amount to | 1000 kg |
Its preparation method is:
(1) disperse polishing: water, coarse whiting, talcum powder, white titanium pigment, dispersion agent, wetting agent, Ucar 35, skimmer are dropped into dispersion machine, disperseed 10 ~ 15 minutes with the rotating speed of 1500 ~ 300rpm, the sand mill with the 4000rpm rotating speed grinds filtration again, makes slurry.
(2) the paint stage: emulsion, nano meso-porous titanium dioxide, Nano silica sol, water, film coalescence aid, thickening material are dropped in the slurry that step 1) makes, be transferred to Si Tuomo viscosity and reach 90-110K, make rubber-emulsion paint.
Embodiment two:
The preparation prescription of present embodiment is:
The slurrying stage
| Water | 200kg |
| Wetting agent | 2.5 kg |
| Regulator AMP-95 | 4.5 kg |
| Dispersion agent | 5 kg |
| Skimmer | 0.5 kg |
| Film coalescence aid | 15 kg |
| Ucar 35 | 15 kg |
| TiO 2 | 150 kg |
| Coarse whiting | 100kg |
| Talcum powder | 20 kg |
| Thickening material | 3kg |
The high speed dispersion sand milling gets into the paint stage.
| Pure-acrylic emulsion | 400 kg |
| Skimmer | 0.5 kg |
| Nano silica sol | 15 kg |
| Nano meso-porous titanium dioxide | 15kg |
| Thickening material | 4kg |
| Water | 50 kg |
| Amount to | 1000 kg |
Its preparation method is:
(1) disperse polishing: water, coarse whiting, talcum powder, white titanium pigment, dispersion agent, wetting agent, Ucar 35, skimmer are dropped into dispersion machine, disperseed 10 ~ 15 minutes with the rotating speed of 1500 ~ 300rpm, the sand mill with the 4000rpm rotating speed grinds filtration again, makes slurry.
(2) the paint stage: emulsion, nano meso-porous titanium dioxide, Nano silica sol, water, film coalescence aid, thickening material are dropped in the slurry that step 1) makes, be transferred to Si Tuomo viscosity and reach 90-110K, make rubber-emulsion paint.
Claims (6)
1.
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating, it is characterized in that: this coating composition and mass percent are following: water 10 ~ 30%; Emulsion 15 ~ 40%; Nano meso-porous titanium dioxide 0.5 ~ 5%; Nano silica sol 0.5 ~ 5%; Coarse whiting 5 ~ 15%; Talcum powder 1 ~ 3%; Ucar 35 0.5 ~ 1.5%; White titanium pigment 5 ~ 25%; Wetting agent 0.05 ~ 0.4%; Skimmer 0.5 ~ 1%; Dispersion agent 0.1 ~ 0.5%; Thickening material 1 ~ 2% and film coalescence aid 0.5 ~ 2%.
2.
OnePlant the preparation method of nano meso-porous titanium dioxide/Nano silica sol coating, it is characterized in that: this preparation method comprises following two steps:
1) disperse polishing: water, coarse whiting, talcum powder, white titanium pigment, dispersion agent, wetting agent, Ucar 35, skimmer are dropped into dispersion machine, disperseed 10 ~ 15 minutes with the rotating speed of 1500 ~ 300rpm, the sand mill with the 4000rpm rotating speed grinds filtration again, makes slurry;
2) the paint stage: emulsion, nano meso-porous titanium dioxide, Nano silica sol, water, film coalescence aid, thickening material are dropped in the slurry that step 1) makes, be transferred to Si Tuomo viscosity and reach 90-110K, make rubber-emulsion paint.
3. according to claim 1 or claim 2
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof, it is characterized in that described emulsion is one of benzene emulsion, pure-acrylic emulsion, acrylate and vinyl acetate emulsion, organosilicon crylic acid latex or composite.
4. according to claim 1 or claim 2
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof; It is characterized in that described nano meso-porous titanium dioxide; With the tensio-active agent is template, utilizes chemical processes such as sol-gel emulsification or microemulsified, synthesizes through the interface interaction between organism and the inorganics.
5. as claimed in claim 4
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof, it is characterized in that described nano meso-porous titanium dioxide, shape is main with regular spherical, and median size is 60～100nm; The duct is that rule has duct or random that pore passage structure is arranged, and the aperture is 10～50nm.
6. according to claim 1 or claim 2
OnePlant nano meso-porous titanium dioxide/Nano silica sol coating and preparation method thereof, it is characterized in that described silicon sol is an alkaline silica sol, its grain size is at 5 ~ 100nm.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104151961A (en) * | 2014-08-20 | 2014-11-19 | 浙江镜湖建设集团有限公司 | Nano modified polyvinyl acetate-acrylic acid building exterior wall emulsion paint |
| CN104293061A (en) * | 2014-11-12 | 2015-01-21 | 徐妍玲 | Nanometer antibacterial primer |
| CN104312438A (en) * | 2014-11-12 | 2015-01-28 | 徐妍玲 | Preparation method of nano-antibacterial priming paint |
| CN104610798A (en) * | 2015-02-02 | 2015-05-13 | 芜湖市宝艺游乐科技设备有限公司 | Anti-cracking polyethylene powder coating containing silica powder grafted and activated by nano-mesoporous titanium dioxide and preparation method thereof |
| CN105238103A (en) * | 2015-10-30 | 2016-01-13 | 江门四方英特宝涂料有限公司 | Energy-saving and antibacterial nano ceramic coating |
| CN105925097A (en) * | 2016-06-08 | 2016-09-07 | 安徽真信涂料有限公司 | Nano modified exterior wall coating and preparation method thereof |
| CN106009967A (en) * | 2016-06-23 | 2016-10-12 | 黄作鹏 | Composite heat-insulating paint for exterior walls and preparation method of composite heat-insulating paint |
| CN107083679A (en) * | 2017-05-24 | 2017-08-22 | 新世嘉纺织品（南通）有限公司 | A kind of preparation method of photocatalysis smelly eliminating automatically cleaning window curtain fabric |
| CN110802196A (en) * | 2019-10-22 | 2020-02-18 | 东风精密铸造安徽有限公司 | Silica sol binder for shell |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104151961A (en) * | 2014-08-20 | 2014-11-19 | 浙江镜湖建设集团有限公司 | Nano modified polyvinyl acetate-acrylic acid building exterior wall emulsion paint |
| CN104293061A (en) * | 2014-11-12 | 2015-01-21 | 徐妍玲 | Nanometer antibacterial primer |
| CN104312438A (en) * | 2014-11-12 | 2015-01-28 | 徐妍玲 | Preparation method of nano-antibacterial priming paint |
| CN104610798A (en) * | 2015-02-02 | 2015-05-13 | 芜湖市宝艺游乐科技设备有限公司 | Anti-cracking polyethylene powder coating containing silica powder grafted and activated by nano-mesoporous titanium dioxide and preparation method thereof |
| CN105238103A (en) * | 2015-10-30 | 2016-01-13 | 江门四方英特宝涂料有限公司 | Energy-saving and antibacterial nano ceramic coating |
| CN105925097A (en) * | 2016-06-08 | 2016-09-07 | 安徽真信涂料有限公司 | Nano modified exterior wall coating and preparation method thereof |
| CN106009967A (en) * | 2016-06-23 | 2016-10-12 | 黄作鹏 | Composite heat-insulating paint for exterior walls and preparation method of composite heat-insulating paint |
| CN107083679A (en) * | 2017-05-24 | 2017-08-22 | 新世嘉纺织品（南通）有限公司 | A kind of preparation method of photocatalysis smelly eliminating automatically cleaning window curtain fabric |
| CN110802196A (en) * | 2019-10-22 | 2020-02-18 | 东风精密铸造安徽有限公司 | Silica sol binder for shell |
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| CN102585623B (en) | 2014-04-09 |
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Application publication date: 20120718 Assignee: Shenyang Zhen Shiyuan coating Science and Technology Ltd. Assignor: Shenyang Shunfeng Metro Building Materials Co., Ltd. Contract record no.: 2015210000018 Denomination of invention: Nanometer mesoporous titanium dioxide/nanometer silica sol coating and preparation method thereof Granted publication date: 20140409 License type: Common License Record date: 20150320 |
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