CN104693844A - Environment-friendly photocatalyzed nano composite coating - Google Patents
Environment-friendly photocatalyzed nano composite coating Download PDFInfo
- Publication number
- CN104693844A CN104693844A CN201310669926.5A CN201310669926A CN104693844A CN 104693844 A CN104693844 A CN 104693844A CN 201310669926 A CN201310669926 A CN 201310669926A CN 104693844 A CN104693844 A CN 104693844A
- Authority
- CN
- China
- Prior art keywords
- coupling agent
- parts
- sample
- titanate coupling
- nano
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Paints Or Removers (AREA)
- Catalysts (AREA)
Abstract
The invention pertains to an environment-friendly photocatalyzed coating. The environment-friendly photocatalyzed coating is prepared from the following components in parts by mass: 20-80 parts of deionized water, 40-90 parts of a sample Saf5, 30-90 parts of sodium dodecyl sulfate, 40-80 parts of NaHSO3, 30-90 parts of APS, 30-90 parts of MMA, 40-100 parts of a saturated salt solution, 40-80 parts of a titanate coupling agent and 80-120 parts of acetone.
Description
Technical field
The invention belongs to a kind of photocatalytic environmental-protection coating, belong to chemical engineering of materials technical field.
Background technology
Nanometer product is with after high-tech implication, it must match with corresponding nanotechnology, after nano level material is added simply, it is nanometer product that the product that performance does not significantly improve is not really, someone says, nano paint is called nano composite dope is more suitable, the one of coating inherently condensation material, therefore, be not that the coating that with the addition of nano material just can be referred to as nano paint.Abroad, many coating products all employ nanotechnology, but for technical know-how, are not directly called.
Green exhibition not only will put on display the paint of " insipidness ", show the advanced technologies of non-toxic coatings, also will put on display high in technological content nano paint.This high-tech nano paint is not only nontoxic, can also slowly release a kind of material, objectionable impurities such as degraded indoor formaldehyde, dimethylbenzene etc.
The particle diameter of nanoparticle, much smaller than the wavelength 400 ~ 750nm of visible ray, has through effect, thus ensure that nano composite dope has the higher transparency.Nanoparticle has stronger sorption to ultraviolet.TiO is added in outer wall building coating
2, SiO
2deng nanoparticle to improve weathering resistance, in automobile finish, add TiO
2to improve the ageing resistance etc. of car paint.
Experiment shows, nano silicon reduces the intensity that ultraviolet-curing paint absorbs UV irradiation, thus reduces the curing speed of photo-cured coating, but can significantly improve hardness and the sticking power of ultraviolet-curing paint.
Summary of the invention
Use H
2sO
4to nano-TiO
2modify, adulterate with iron and silver, improve nano-TiO
2photo-quantum efficiency and photoresponse scope.But nano-TiO
2particle has high surface energy, easily produces and reunites and affect photocatalytic activity.The author uses titanate coupling agent and methyl methacrylate (MMA) to nanometer SO respectively
4 2-/ TiO
2-(Ag, Fe) particle (S
af5) surface carries out organics coating modification, inquired into the nanometer SO after organics coating modification
4 2-/ TiO
2-(Ag, Fe) particle dispersiveness in organic solvent and stability, solve surface-area is large, surface energy is high nanoparticle in out-phase material easily condensation assemble and affect the problem of photocatalytic activity.Traditional solvent based coating is in spraying process, and a large amount of organic solvent to environmental emission, uses supercritical CO
2substitute the fast solvent flashing in spraying process, effectively can reduce the organic solvent amount that such coating discharges in spraying process, both reduce spraying cost, and improved coating quality again.This research composite algorithm preparation contains nanometer SO
4 2-/ TiO
2the fluorocarbon resin building coating of-(Ag, Fe), with supercritical CO
2for fast solvent flashing, carry out the spraying of above-mentioned coating.Screening modifying technology conditions, inquires into composite-making process and supercritical CO
2the coating photocatalytic activity of spraying coating process on preparation and the impact of paint film performance, select the processing condition optimized.
It is suitable when photocatalyst addition is 6%; Be that the nozzle of 0.4mm is to CO at 14MPa, at 60 DEG C with aperture
2content is the composite S O of 30%
4 2-/ TiO
2-(Ag, Fe) fluorocarbon resin coating sprays, and spraying process organic emission amount reduces 43.5%, and gained film is 3.84 × 10 to rhodamine B degradation rate constant
-2s
-1, improve 17.8% than with common brushing.This film by the thorough mineralising of organism of the multiple difficult degradations such as tropeolin-D, magenta, phenol, and can also be reused through 5 times, and photocatalytic activity is without obvious decline, and reacting 140min under visible light just can by rhodamine B permineralization.
The proportion by weight scope of this product is: deionized water 20-80, sample S
af540-90 and sodium lauryl sulphate 30-90, NaHSO
340-80 and APS30-90, MMA30-90, saturated aqueous common salt 40-100, titanate coupling agent 40-80, acetone 80-120.
Embodiment
With in the 500ml round-bottomed flask of reflux exchanger, agitator, thermometer and charging opening, under agitation add 10g deionized water, 1g sample S
af5with 0.01g sodium lauryl sulphate, when being warming up to 80 DEG C, successively add 0.0456g NaHSO
3and 0.015gAPS.0.3g MMA is dripped, reaction 2h after stirring 10min.With appropriate saturated aqueous common salt breakdown of emulsion.Filtration under diminished pressure, then use distilled water wash filter cake 3 times, dry to constant for 45 DEG C, grinding, obtains the nano-powder S of PMMA modification
p3.MMA consumption is respectively 0.5g and 0.7g and repeats above-mentioned test, obtains the nano-powder S of PMMA modification respectively
p5and S
p7.
Nanometer SO
4 2-/ TiO
2the titanate coupling agent Surface coating of-(Ag, Fe): by the S of 1g
af5add in the acetone soln being dissolved with 0.040g titanate coupling agent, ultrasonic disperse 40min, suction filtration also uses washing with acetone 3 times, dries to constant weight, grinds to obtain the surface coated modified sample S of titanate coupling agent
t4.Get coupling agent and be respectively 0.06g, 0.08g and 0.1g, repeat above-mentioned test, obtain sample S respectively
t6, S
t8, S
t10.
Claims (3)
1. the proportion by weight scope of this product is: deionized water 20-80, sample S
af540-90 and sodium lauryl sulphate 30-90, NaHSO
340-80 and APS30-90, MMA30-90, saturated aqueous common salt 40-100, titanate coupling agent 40-80, acetone 80-120.
2., with in the 500ml round-bottomed flask of reflux exchanger, agitator, thermometer and charging opening, under agitation add 10g deionized water, 1g sample S
af5with 0.01g sodium lauryl sulphate, when being warming up to 80 DEG C, successively add 0.0456g NaHSO
3and 0.015gAPS.0.3 is dripped after stirring 10min
gmMA, reaction 2h.With appropriate saturated aqueous common salt breakdown of emulsion.Filtration under diminished pressure, then use distilled water wash filter cake 3 times, dry to constant for 45 DEG C, grinding, obtains the nano-powder S of PMMA modification
p3.MMA consumption is respectively 0.5g and 0.7g and repeats above-mentioned test, obtains the nano-powder S of PMMA modification respectively
p5and S
p7.
3. nanometer SO
4 2-/ TiO
2the titanate coupling agent Surface coating of-(Ag, Fe): by the S of 1g
af5add in the acetone soln being dissolved with 0.040g titanate coupling agent, ultrasonic disperse 40min, suction filtration also uses washing with acetone 3 times, dries to constant weight, grinds to obtain the surface coated modified sample S of titanate coupling agent
t4.Get coupling agent and be respectively 0.06g, 0.08g and 0.1g, repeat above-mentioned test, obtain sample S respectively
t6, S
t8, S
t10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669926.5A CN104693844A (en) | 2013-12-07 | 2013-12-07 | Environment-friendly photocatalyzed nano composite coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669926.5A CN104693844A (en) | 2013-12-07 | 2013-12-07 | Environment-friendly photocatalyzed nano composite coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104693844A true CN104693844A (en) | 2015-06-10 |
Family
ID=53341413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310669926.5A Pending CN104693844A (en) | 2013-12-07 | 2013-12-07 | Environment-friendly photocatalyzed nano composite coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104693844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588302A (en) * | 2020-12-22 | 2021-04-02 | 河池学院 | alpha-MnO-containing2Photocatalytic system, preparation method and application thereof |
-
2013
- 2013-12-07 CN CN201310669926.5A patent/CN104693844A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588302A (en) * | 2020-12-22 | 2021-04-02 | 河池学院 | alpha-MnO-containing2Photocatalytic system, preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105504893B (en) | Spacetabs type photocatalysis anti-fouling and self-cleaning coating and preparation method thereof | |
| CN104830227B (en) | Supported composite photocatalytic coating and preparation method thereof | |
| CN104148258B (en) | A kind of manufacturing process of fluorine-carbon aluminum veneer | |
| CN103933591A (en) | Polymer for purifying air and preparation method and use thereof | |
| CN103990474A (en) | Preparation method of 3D-shaped silver/silver bromide/titanium dioxide catalyst | |
| CN102230169A (en) | Method for constructing super-hydrophobic membrane on surface of copper matrix | |
| CN106582812A (en) | Composite photocatalyst with titanium dioxide axially functionalized by metallic zinc porphyrin and preparation method thereof | |
| CN107200350A (en) | TiO is prepared by template of corn stigma2The method of nano-tube array catalysis material | |
| CN103865337A (en) | Emulsion paint capable of decomposing formaldehyde | |
| CN104449130A (en) | Corrosion-oxidation-resistant and environment-friendly waterborne coating for glass door and preparation method of waterborne coating | |
| CN104449228A (en) | Photocatalytic decontaminable painting with high adhesive force | |
| CN103990478A (en) | Preparation method of supported silver phosphate photocatalyst | |
| CN104693844A (en) | Environment-friendly photocatalyzed nano composite coating | |
| CN108246216A (en) | A kind of nucleocapsid organic/inorganic composite hollow porous microsphere and preparation method thereof | |
| CN105350198A (en) | Cloth cleaning device | |
| CN104138755B (en) | There is the BiVO of nano hollow structure4the preparation method of catalysis material | |
| CN107513118A (en) | A kind of preparation method of titanium dioxide/polyacrylamide nano composite | |
| CN103819100A (en) | Method for preparing nano-titanium dioxide photocatalysis transparent glass coating by electrospinning technology | |
| CN103881434A (en) | Preparation method of aqueous UV-cured anti-fog paint | |
| CN109054515A (en) | A kind of diatom ooze | |
| CN103736506B (en) | A kind of photochemical catalyst, Preparation Method And The Use | |
| CN102513074B (en) | Nanoparticle photocatalysis board, its preparation method and application thereof | |
| CN106349814A (en) | Antibacterial and antistatic water- borne UV light curing ceramic ink jet ink and preparing method thereof | |
| CN103540245B (en) | A kind of computer panel polyester priming paint and preparation method thereof | |
| CN105904909A (en) | Preparation process of plane UV background wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |