CN106317968A - Modification method for nanometer TiO2 - Google Patents
Modification method for nanometer TiO2 Download PDFInfo
- Publication number
- CN106317968A CN106317968A CN201610670583.8A CN201610670583A CN106317968A CN 106317968 A CN106317968 A CN 106317968A CN 201610670583 A CN201610670583 A CN 201610670583A CN 106317968 A CN106317968 A CN 106317968A
- Authority
- CN
- China
- Prior art keywords
- tio
- nano
- modifying
- mixed solution
- nanometer tio2
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3669—Treatment with low-molecular organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/12—Treatment with organosilicon compounds
Abstract
The invention discloses a modification method for nanometer TiO2. The modification method includes the following steps that (1) deionized water is added into the nanometer TiO2 and wetted, the wetted nanometer TiO2 is subjected to ultrasonic concussion for 25 min to 35 min, and a nanometer TiO2 water solution is obtained; (2) a silane coupling agent KH-570 is dissolved in absolute ethyl alcohol, a PH value adjusting agent is dropped in, the pH value is adjusted to be equal to 4, and a modifying-agent mixed solution is obtained; (3) the modifying-agent mixed solution is slowly dropped in the nanometer TiO2 water solution, the mixture is stirred, mixed and reacted at the temperature of 60 DEG C to 80 DEG C, dried and milled, and the modified nanometer TiO2 is obtained. By means of the modification method for the nanometer TiO2, the efficiency in the whole wetting and modification process of the nanometer TiO2 is effectively improved, the dispersity of the nanometer TiO2 is improved, it is avoided that as the nanometer TiO2 suffers from the excessively-high temperature, the modification stability is influenced; the stability of the surface modification effect of the nanometer TiO2 is improved, the effect of external work of ultrasonic concussion does not need to be carried out in all the dissolution processes, it is guaranteed that preparing of the nanometer TiO2 is even, the operation sequence is simplified, and the problems that the surface modification time is long, and controlling is difficult are solved.
Description
Technical field
The present invention relates to nanometer titanic oxide material technical field, particularly relate to a kind of nano-TiO2Method of modifying.
Background technology
Nano-TiO2There is the distinctive skin effect of nanoparticle, bulk effect, quantum size effect and macroscopic quantum tunnel
Channel effect, and unique performance such as higher photocatalytic activity, ultraviolet screening ability is strong, thermal conductance good, good dispersion, but
Due to nano-TiO2Specific surface area is big, surface hydrophilic oleophobic, and nano-particle is easily reunited in resin matrix, and this has had a strong impact on it
The performance of performance own, limits application in some aspects, such as, due to unmodified nano-TiO2In the coating in bulky grain
Reuniting, cause coating porosity to become big, the coating structure prepared loosens, and provides passage for electrolyte solution to coating penetration, on the contrary
The corrosion resistance of polyurethane coating can be reduced.Therefore, nano-TiO is being used2Typically require its modifying surface before.
Presently, there are different to nano-TiO2Surface modifying method, mainly utilize long chain alkane and microcapsule method pair
Nano-TiO2Carry out surface modification or utilize silane coupler to nano-TiO2Carry out surface modification, wherein utilize described silane even
Connection agent KH-570 is to described nano-TiO2During carrying out surface modification, often generally fluctuated by temperature, the response time
The impact of the factors such as length, it is impossible to KH-570 and described nano-TiO2Reacting fully, i.e. Silane coupling reagent KH-570 is to nano-TiO2
Modified-reaction unstable, modified Nano TiO2Dispersion uneven, it is impossible to stably dispersed structure can be kept, exist part
Modified Nano TiO2The phenomenon that molecule is reunited, the most often also exists preparation section problem complicated, unmanageable.
Summary of the invention
It is an object of the invention to propose the nano-TiO that a kind of reaction efficiency is high, operation is simple and easily controllable2Modification
Method, prepared nano-TiO2Having polymolecularity, its dispersed structure is more uniform and stable.
For reaching this purpose, the present invention by the following technical solutions:
A kind of nano-TiO2Method of modifying, comprise the steps:
(1) nano-TiO2The preparation of aqueous solution: to nano-TiO2Middle addition deionized water carries out moistening, to receiving after moistening
Rice TiO2Carry out ultrasonic vibration 25～35min, it is thus achieved that nano-TiO2Aqueous solution；
(2) preparation of modifying agent mixed solution: Silane coupling reagent KH-570 is dissolved in dehydrated alcohol, and instill pH value tune
Joint agent, adjusts acidity-basicity ph=4, obtains modifying agent mixed solution；
(3) modified: described modifying agent mixed solution is slowly dropped into described nano-TiO2Aqueous solution, stirs at 60～80 DEG C
After mixing hybrid reaction, be dried by mixed solution, milling obtains modified Nano TiO2。
Further illustrating, also carry out washing procedure after stirring hybrid reaction described in step (3), described washing procedure is for adopting
With the remaining modifying agent mixed solution of absolute ethanol washing.
Further illustrate, the described nano-TiO in step (1)2It is 6:300 with the ratio of deionized water.
Further illustrating, pH value regulator described in step (2) is any one in glacial acetic acid, hydrochloric acid, sulphuric acid or oxalic acid
Kind.
Further illustrating, described in step (3), the stirring hybrid reaction time is 4.5～5.5h.
Beneficial effects of the present invention: (1) nano-TiO after moistening2Can be fast with described acid modification agent mixed solution
After speed mixing, described Silane coupling reagent KH-570 is the most quickly grafted to nano titanium oxide under conditions of acidity is moistening
On surface, improve the efficiency of whole moistening and modifying process, make nano-TiO2Surface property is changed into hydrophobicity by hydrophilic,
And Silane coupling reagent KH-570 is at nano-TiO2Surface forms protective layer, creates space steric effect, hinders nanoparticle
Gathering between son, thus improve nano-TiO2Dispersibility；(2) described acid modification agent mixed solution is slowly dropped into moistening
After nano-TiO2Mix, it is to avoid generation substantial amounts of heat and cause nano-TiO2By temperature is too high, to affect it modified
Stability, maintain temperature in the range of 60～80 DEG C, be effectively improved nano-TiO2Stablizing of surface modification effect；(3) nothing
The effect of the external work of ultrasonic vibration need to be carried out during each dissolving, not only ensure modified Nano TiO2Possess uniform, steady
Fixed good dispersive property, and simplify operation sequence, the time of the process solving surface modification is long, and preparation technology is multiple
Problem miscellaneous, unmanageable, beneficially nano-TiO2Multiextent utilization, will it can carry with polyurethane resin-based bluk recombination
The decay resistance of high material.
Accompanying drawing explanation
Fig. 1 is existing unmodified nano-TiO2In coating, content is the scattergram of 1%；
Fig. 2 is existing unmodified nano-TiO2In coating, content is the scattergram of 3%；
Fig. 3 is existing unmodified nano-TiO2In coating, content is the scattergram of 5%；
The modified Nano TiO of Fig. 4 one embodiment of the invention2In coating, content is the scattergram of 1%；
The modified Nano TiO of Fig. 5 one embodiment of the invention2In coating, content is the scattergram of 3%；
The modified Nano TiO of Fig. 6 one embodiment of the invention2In coating, content is the scattergram of 5%.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
A kind of nano-TiO2Method of modifying, comprise the steps:
(1) nano-TiO2The preparation of aqueous solution: to nano-TiO2Middle addition deionized water carries out moistening, to receiving after moistening
Rice TiO2Carry out ultrasonic vibration 25～35min, it is thus achieved that nano-TiO2Aqueous solution；
(2) preparation of modifying agent mixed solution: Silane coupling reagent KH-570 is dissolved in dehydrated alcohol, and instill pH value tune
Joint agent, adjusts acidity-basicity ph=4, obtains modifying agent mixed solution；
(3) modified: described modifying agent mixed solution is slowly dropped into described nano-TiO2Aqueous solution, stirs at 60～80 DEG C
After mixing hybrid reaction, be dried by mixed solution, milling obtains modified Nano TiO2。
The present invention proposes a kind of nano-TiO2Method of modifying, by first by nano-TiO2First pass through in deionized water and carry out
After being sufficiently humidified so as to, then the acid modification agent mixed solution of pH=4 is slowly added into described nano-TiO2Aqueous solution mixes
Close, be dried, milling obtains modified Nano TiO2, its feature is: (1) nano-TiO after moistening2Though can occur in water
A small amount of cohesion, but find through experiment, the nano-TiO after moistening2Can be quick with described acid modification agent mixed solution
After mixing, described Silane coupling reagent KH-570 is made the most quickly to be grafted to nano titanium oxide under conditions of acidity is moistening
On surface, improve the efficiency of whole moistening and modifying process, make nano-TiO2Surface property is changed into hydrophobicity by hydrophilic,
Thus improve the affinity of inorganic particle and organic matrix, and Silane coupling reagent KH-570 is at nano-TiO2Surface is formed to be protected
Sheath, creates space steric effect, hinders the gathering between nanoparticle, thus improves nano-TiO2Dispersibility；(2)
Described acid modification agent mixed solution is slowly dropped into the nano-TiO after moistening2Mix, it is to avoid a large amount of owing to producing
Heat and cause nano-TiO2Too high and affect the stability of its modification by temperature, therefore maintain temperature at the model of 60～80 DEG C
In enclosing, it is effectively improved nano-TiO2Stablizing of surface modification effect；(3) without carrying out ultrasonic vibration during each dissolving
The effect of external work, not only ensure modified Nano TiO2Possess uniform, stable good dispersive property, and simplify operation
Operation, efficiently solves described Silane coupling reagent KH-570 to described nano-TiO2The time of the process carrying out surface modification is long,
Complicated process of preparation, unmanageable problem, beneficially nano-TiO2Multiextent utilization, will its with polyurethane resin-based
Bluk recombination can improve the decay resistance of material.
Further illustrating, also carry out washing procedure after stirring hybrid reaction described in step (3), described washing procedure is for adopting
With the remaining modifying agent mixed solution of absolute ethanol washing.By described washing procedure, to described nano-TiO2It is modified
After hybrid reaction, remove the modifying agent mixed solution under reaction residual by dehydrated alcohol, thus reduce impurity to modified Nano
TiO2The interference of dispersibility.
Further illustrate, the described nano-TiO in step (1)2It is 6:300 with the ratio of deionized water.By controlling institute
State nano-TiO2And the ratio between deionized water, if ratio is excessive, the most described nano-TiO2Carry out dissolving moistening same
Time, intermolecular cohesion can be produced and increase follow-up described acidity state Silane coupling reagent KH-570 to nano-TiO2Surface
Modified effect, the most described nano-TiO2Be ratio 6:300 and in lasting ultrasonic vibration with deionized water, make described in change
Property nano-TiO2The suspended state kept in balance.
Further illustrating, pH value regulator described in step (2) is any one in glacial acetic acid, hydrochloric acid, sulphuric acid or oxalic acid
Kind.By utilizing described pH value regulator to reduce the pH value that described Silane coupling reagent KH-570 is dissolved in dehydrated alcohol, make institute
State Silane coupling reagent KH-570 in sour environment, be more beneficial for and nano-TiO2The hydroxyl phase coupling of particle surface or link,
It is combined in nano-titania particle surface with the form of chemical bond, forms rock-steady structure.
Further illustrating, described in step (3), the stirring hybrid reaction time is 4.5～5.5h.Due to described silane coupled
Agent KH-570 be under conditions of the middle temperature of 60～80 DEG C with nano-TiO2It is stirred hybrid reaction, along with silane coupler
KH-570 is linked to described nano-TiO2On the hydroxyl of particle surface, stirring the hybrid reaction time in the range of 4.5～5.5h,
The most not only ensure that and make dehydration complete, improve modified Nano TiO2Dispersibility, and the external work effect of appropriate stirring
Improve modified Nano TiO further2Scattered stability.
Embodiment 1-nano-TiO2Method of modifying, comprise the steps:
(1) by nano-TiO2Joining in ethanol solution, be configured to alcohol mixed solution, sonic oscillation makes nano-silica
Change titanium powder mix homogeneously in ethanol solution；
(2) take in the mixed solution that Silane coupling reagent KH-570 adds ethanol and deionized water, ethanol and deionized water
Volume ratio is 20:1, is configured to mixed solution, and supersonic oscillations make Silane coupling reagent KH-570 water in alcohol water mixed solution
Solve；
(3) mixed solution of step (2) gained is added supersonic oscillations half in the ethanol solution of step (1) gained little
Time；
(4) mixed solution of step (3) is stirred at water-bath 80 DEG C reaction 2h, gained mixed solution sucking filtration, washs, dry
Dry, grinding, obtains the nano-TiO of surface modification2。
(5) by described modified Nano TiO2It is separately added in polyurethane resin by the mass fraction of 5%, ball milling 6h, obtains
Three kinds of different nano-TiOs2Polyurethane Composite Coating, is coated in coating on metal interface with spraying process, and is 26 in room temperature
DEG C, relative humidity is to carry out for 35% time solidifying 75h, and the thickness forming polyurethane coating is 75 μm.
Observed by microscope, embodiment 1 the modified Nano TiO obtained2There is certain dispersibility, but exist due to
In preparation process, the factor such as, response time length big by temperature fluctuation is affected, and Silane coupling reagent KH-570 is to nano-TiO2's
Modified-reaction is unstable, modified Nano TiO2Dispersion uneven, it is impossible to stably dispersed structure can be kept, exist part change
Property nano-TiO2The phenomenon that molecule is reunited, modification efficiency is slow.
Comparative example 1-nano-TiO2Method of modifying, comprise the steps:
(1) nano-TiO2The preparation of aqueous solution: by 6g nano-TiO2Add in there-necked flask with 300ml deionized water and carry out
Moistening, to the nano-TiO after moistening2Carry out ultrasonic vibration 35min, it is thus achieved that nano-TiO2Aqueous solution；
(2) preparation of modifying agent mixed solution: 1.8g Silane coupling reagent KH-570 is dissolved in 15ml dehydrated alcohol, and drip
Enter pH value regulator glacial acetic acid and adjust acidity-basicity ph=4, obtain modifying agent mixed solution；
(3) modified: the described nano-TiO that described modifying agent mixed solution is slowly dropped in there-necked flask2In aqueous solution,
After stirring hybrid reaction 5.5h at 80 DEG C, use the modifying agent mixed solution that absolute ethanol washing is remaining, mixed solution is done
Dry, mill, obtain modified Nano TiO2。
(4) by described modified Nano TiO2It is separately added in polyurethane resin by the mass fraction of 5%, ball milling 6h, obtains
Three kinds of different nano-TiOs2Polyurethane Composite Coating, is coated in coating on metal interface with spraying process, and is 26 in room temperature
DEG C, relative humidity is to carry out for 35% time solidifying 75h, and the thickness forming polyurethane coating is 75 μm.
Observed by microscope, embodiment 1 the modified Nano TiO obtained2Dispersibility high, its modified Nano TiO2Point
Son is uniformly distributed.Embodiment 1 and comparative example are carried out contrast can draw, the nano-TiO that the present invention proposes2Modification side
Method is the simplest, and without having to worry about the long impact of temperature fluctuation or response time, it is easy to the control to technique, and in acidity
Under the conditions of, Silane coupling reagent KH-570 is to nano-TiO2Modified-reaction speed faster, improve the efficiency of modifying process, nanometer
TiO2Disperse more uniform and stable, keep stably dispersed structure, and without carrying out ultrasonic shake during each dissolving
The effect of the external work swung, enormously simplify operation sequence.
Embodiment 2-nano-TiO2Method of modifying, comprise the steps:
(1) nano-TiO2The preparation of aqueous solution: by 6g nano-TiO2Add in there-necked flask with 300ml deionized water and carry out
Moistening, to the nano-TiO after moistening2Carry out ultrasonic vibration 25min, it is thus achieved that nano-TiO2Aqueous solution；
(2) preparation of modifying agent mixed solution: 1.8g Silane coupling reagent KH-570 is dissolved in 15ml dehydrated alcohol, and drip
Enter pH value regulator hydrochloric acid and adjust acidity-basicity ph=4, obtain modifying agent mixed solution；
(3) modified: the described nano-TiO that described modifying agent mixed solution is slowly dropped in there-necked flask2In aqueous solution,
After stirring hybrid reaction 4.5h at 60 DEG C, use the modifying agent mixed solution that absolute ethanol washing is remaining, mixed solution is done
Dry, milling obtains modified Nano TiO2。
(4) by described modified Nano TiO2It is separately added in polyurethane resin by the mass fraction of 1%, ball milling 4h, obtains
Nano-TiO2Polyurethane Composite Coating, is respectively adopted 120#, 400#, 800# and 1200# sand paper and beats metal interface step by step
Mill, and with after deionized water rinsing, with acetone and ethanol carry out oil removing, except water, be dried, the metal interface after processing is made
For working electrode, being coated on metal interface by coating with spraying process, and be 24 DEG C in room temperature, relative humidity is to carry out for 25% time
Solidification 70h, the thickness of polyurethane coating is 65 μm.
Embodiment 3-nano-TiO2Method of modifying, comprise the steps:
(1) nano-TiO2The preparation of aqueous solution: by 6g nano-TiO2Add in there-necked flask with 300ml deionized water and carry out
Moistening, to the nano-TiO after moistening2Carry out ultrasonic vibration 30min, it is thus achieved that nano-TiO2Aqueous solution；
(2) preparation of modifying agent mixed solution: 1.8g Silane coupling reagent KH-570 is dissolved in 15ml dehydrated alcohol, and drip
Enter pH value regulator sulphuric acid and adjust acidity-basicity ph=4, obtain modifying agent mixed solution；
(3) modified: the described nano-TiO that described modifying agent mixed solution is slowly dropped in there-necked flask2In aqueous solution,
After stirring hybrid reaction 5h at 70 DEG C, use the modifying agent mixed solution that absolute ethanol washing is remaining, mixed solution is dried,
Mill and obtain modified Nano TiO2。
(4) by described modified Nano TiO2It is separately added in polyurethane resin by the mass fraction of 3%, ball milling 5h, obtains
Nano-TiO2Polyurethane Composite Coating, is respectively adopted 120#, 400#, 800# and 1200# sand paper and beats metal interface step by step
Mill, and with after deionized water rinsing, with acetone and ethanol carry out oil removing, except water, be dried, the metal interface after processing is made
For working electrode, being coated on metal interface by coating with spraying process, and be 25 DEG C in room temperature, relative humidity is to carry out for 30% time
Solidification 73h, the thickness forming polyurethane coating is 70 μm.
Embodiment 4-nano-TiO2Method of modifying, comprise the steps:
(1) nano-TiO2The preparation of aqueous solution: by 6g nano-TiO2Add in there-necked flask with 300ml deionized water and carry out
Moistening, to the nano-TiO after moistening2Carry out ultrasonic vibration 28min, it is thus achieved that nano-TiO2Aqueous solution；
(2) preparation of modifying agent mixed solution: 1.8g Silane coupling reagent KH-570 is dissolved in 15ml dehydrated alcohol, and drip
Enter pH value regulator oxalic acid and adjust acidity-basicity ph=4, obtain modifying agent mixed solution；
(3) modified: the described nano-TiO that described modifying agent mixed solution is slowly dropped in there-necked flask2In aqueous solution,
After stirring hybrid reaction 5.3h at 65 DEG C, use the modifying agent mixed solution that absolute ethanol washing is remaining, mixed solution is done
Dry, milling obtains modified Nano TiO2。
(4) by described modified Nano TiO2It is separately added in polyurethane resin by the mass fraction of 4%, ball milling 5.5h,
To nano-TiO2Polyurethane Composite Coating, is respectively adopted 120#, 400#, 800# and 1200# sand paper and carries out metal interface step by step
Polishing, and with after deionized water rinsing, with acetone and ethanol carry out oil removing, except water, be dried, the metal interface after processing
As working electrode, being coated on metal interface by coating with spraying process, and be 25.5 DEG C in room temperature, relative humidity is 28% time
Carrying out solidifying 72h, the thickness forming polyurethane coating is 69 μm.
By modification TiO2Add polyurethane for nano-TiO2Polyurethane composite coating, and use field emission microscope
Nano-TiO after research before modified further2Dispersion situation in coating, i.e. to different nano-TiOs2Polyurethane composite coating
Cross-section morphology is analyzed, and experimental result is as shown in figs. 1 to 6.
Shown in Fig. 1～3, for existing unmodified nano-TiO2Distribution situation in coating, as seen from the figure, unmodified nanometer
TiO2Occurring reuniting in coating, and content is the highest, agglomeration is the most obvious, is due to nano-TiO2The hydrophilic oleophobic property of itself
Caused.
Shown in Fig. 4～6, for using the nano-TiO of the present invention2Method of modifying obtain modified Nano TiO2In coating
Distribution situation, as seen from the figure, modified Nano TiO2Dispersibility in polyurethane coating is significantly improved；Mainly by
In nano-TiO2After silane coupler modified, its surface property is changed into hydrophobicity by hydrophilic, thus improves inorganic
Powder body and the affinity of organic matrix, and Silane coupling reagent KH-570 is at nano-TiO2Surface forms protective layer, creates sky
Between steric effect, hinder the gathering between nanoparticle；And such as Fig. 4 and Fig. 5, as modified Nano TiO2Content is 1% and 3%
Time, all there is not obvious agglomeration, modified Nano TiO in two coatings2It is uniformly dispersed, such as Fig. 6, as modified Nano TiO2Contain
When amount reaches 5%, coating surface occurs in that slight reunion, therefore as modified Nano TiO2When content is 3%, its dispersibility is
Excellent.
The know-why of the present invention is described above in association with specific embodiment.These describe and are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed to by any way.Based on explanation herein, the technology of this area
Personnel need not pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes fall within
Within protection scope of the present invention.
Claims (5)
1. a nano-TiO2Method of modifying, it is characterised in that: comprise the steps:
(1) nano-TiO2The preparation of aqueous solution: to nano-TiO2Middle addition deionized water carries out moistening, to the nanometer after moistening
TiO2Carry out ultrasonic vibration 25～35min, it is thus achieved that nano-TiO2Aqueous solution；
(2) preparation of modifying agent mixed solution: Silane coupling reagent KH-570 is dissolved in dehydrated alcohol, and instill pH value regulation
Agent, adjusts acidity-basicity ph=4, obtains modifying agent mixed solution；
(3) modified: described modifying agent mixed solution is slowly dropped into described nano-TiO2Aqueous solution, at 60～80 DEG C, stirring is mixed
After closing reaction, be dried by mixed solution, milling obtains modified Nano TiO2。
A kind of nano-TiO the most according to claim 12Method of modifying, it is characterised in that: described in step (3), stirring is mixed
Also carrying out washing procedure after closing reaction, described washing procedure is the modifying agent mixed solution using absolute ethanol washing remaining.
A kind of nano-TiO the most according to claim 12Method of modifying, it is characterised in that: the described nanometer in step (1)
TiO2It is 6:300 with the ratio of deionized water.
A kind of nano-TiO the most according to claim 12Method of modifying, it is characterised in that: pH value described in step (2) adjust
Joint agent is any one in glacial acetic acid, hydrochloric acid, sulphuric acid or oxalic acid.
A kind of nano-TiO the most according to claim 12Method of modifying, it is characterised in that: described in step (3), stirring is mixed
The conjunction response time is 4.5～5.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670583.8A CN106317968A (en) | 2016-08-15 | 2016-08-15 | Modification method for nanometer TiO2 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670583.8A CN106317968A (en) | 2016-08-15 | 2016-08-15 | Modification method for nanometer TiO2 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106317968A true CN106317968A (en) | 2017-01-11 |
Family
ID=57740975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610670583.8A Pending CN106317968A (en) | 2016-08-15 | 2016-08-15 | Modification method for nanometer TiO2 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106317968A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848069A (en) * | 2017-03-01 | 2017-06-13 | 常州亿晶光电科技有限公司 | A kind of new TiO2Nano material and preparation method and purposes |
| CN109943192A (en) * | 2019-03-19 | 2019-06-28 | 首钢集团有限公司 | A kind of method of reinforced epoxy varnish weatherability |
| CN110790306A (en) * | 2018-08-01 | 2020-02-14 | 北京化工大学 | Preparation method of monodisperse anatase nano titanium dioxide transparent liquid phase dispersion |
| CN111087837A (en) * | 2019-12-23 | 2020-05-01 | 南通吉美装饰材料有限公司 | Nano bismuth vanadate antifouling self-cleaning surface finishing auxiliary for PVC |
| CN111253886A (en) * | 2018-11-30 | 2020-06-09 | 比亚迪股份有限公司 | Sealant composition for solar cell, sealant, preparation method of sealing rubber strip and solar cell module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031022A (en) * | 2010-10-27 | 2011-04-27 | 华南理工大学 | Method for modifying nano titanium dioxide sol by utilizing silane coupling agent |
| CN103525134A (en) * | 2013-09-22 | 2014-01-22 | 中国水产科学研究院东海水产研究所 | Surface modification method of nano-titanium dioxide |
-
2016
- 2016-08-15 CN CN201610670583.8A patent/CN106317968A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031022A (en) * | 2010-10-27 | 2011-04-27 | 华南理工大学 | Method for modifying nano titanium dioxide sol by utilizing silane coupling agent |
| CN103525134A (en) * | 2013-09-22 | 2014-01-22 | 中国水产科学研究院东海水产研究所 | Surface modification method of nano-titanium dioxide |
Non-Patent Citations (2)
| Title |
|---|
| 庞宇: "纳米TiO2的表面改性及其对聚氨酯涂层耐蚀性能的影响", 《中国优秀硕士学位论文全文数据库》 * |
| 杜楠等: "纳米TiO2/聚氨酯复合涂层的制备及其耐盐水浸泡性能", 《南昌航空大学学报（自然科学版）》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848069A (en) * | 2017-03-01 | 2017-06-13 | 常州亿晶光电科技有限公司 | A kind of new TiO2Nano material and preparation method and purposes |
| CN106848069B (en) * | 2017-03-01 | 2018-10-12 | 常州亿晶光电科技有限公司 | A kind of TiO2Nano material and preparation method and purposes |
| CN110790306A (en) * | 2018-08-01 | 2020-02-14 | 北京化工大学 | Preparation method of monodisperse anatase nano titanium dioxide transparent liquid phase dispersion |
| CN110790306B (en) * | 2018-08-01 | 2020-12-11 | 北京化工大学 | Preparation method of monodisperse anatase nano titanium dioxide transparent liquid phase dispersion |
| CN111253886A (en) * | 2018-11-30 | 2020-06-09 | 比亚迪股份有限公司 | Sealant composition for solar cell, sealant, preparation method of sealing rubber strip and solar cell module |
| CN111253886B (en) * | 2018-11-30 | 2021-09-03 | 比亚迪股份有限公司 | Sealant composition for solar cell, sealant, preparation method of sealing rubber strip and solar cell module |
| CN109943192A (en) * | 2019-03-19 | 2019-06-28 | 首钢集团有限公司 | A kind of method of reinforced epoxy varnish weatherability |
| CN111087837A (en) * | 2019-12-23 | 2020-05-01 | 南通吉美装饰材料有限公司 | Nano bismuth vanadate antifouling self-cleaning surface finishing auxiliary for PVC |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106317968A (en) | Modification method for nanometer TiO2 | |
| CN104525174B (en) | A kind of method preparing graphene-based composite based on graphene oxide self assembly | |
| WO2018049965A1 (en) | Method for quickly preparing aerogel by using microemulsion as precursor | |
| CN102059083B (en) | Method for preparing phase-transformation microcapsule with wall material inlaid with nano alumina | |
| CN105312051B (en) | A kind of nanometer mesoporous gold silica composite nano tube and its preparation and application | |
| CN102613245B (en) | Preparation method of nano-silica aerogels | |
| CN103433027B (en) | Preparation method and application of core-shell hollow structured MoO3 @ mSiO2 microspheres | |
| CN103613101B (en) | A kind of preparation method with dendroid pore passage structure mesoporous silicon oxide shape nanometer ball | |
| CN101602508B (en) | Method for preparing monodisperse nano silicon dioxide spherical particle hydrosol and application thereof | |
| CN106245423A (en) | A kind of antibacterial glass fibre air filter paper and preparation method thereof | |
| CN108018739A (en) | A kind of nano-starch adhesive and preparation method thereof | |
| CN107020101B (en) | Nano carbon fiber loaded nickel-based catalytic material containing zinc oxide and preparation method thereof | |
| CN101575800A (en) | Novel fabric finishing agent with functions of repelling mosquitoes and preventing insects | |
| CN105778599A (en) | Production method of self-cleaning nan-coatings capable of exciting photocatalysts in visible light | |
| CN105689701A (en) | Rapid preparation method of AU@Cu2O nanocomposite in yolk-shell structure | |
| CN106141171A (en) | Hud typed superstructure nano material, its preparation method and application | |
| CN106223121A (en) | A kind of durable antibiotic glass fibre air filter paper and preparation method thereof | |
| CN105906725A (en) | Preparation method of tartaric acid modified carboxylic nano-crystal cellulose | |
| CN105800679B (en) | A kind of TiO2The preparation method of spherical three-level hierarchy | |
| CN104551008A (en) | Adjustable spectrum gold nanoshell preparation method | |
| CN109554167A (en) | A kind of nanocapsules and preparation method thereof | |
| CN106543795B (en) | A kind of preparation method for the nano zinc oxide slurry that suspended dispersed is stable | |
| CN107353711A (en) | A kind of preparation method of nano-particle reinforced resin lead for retractable pencil | |
| CN108660538A (en) | A kind of antimicrobial form Multifunctional polyester fiber | |
| CN110484071A (en) | A kind of aluminum paste metallic paint and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |