CN104194498A - Novel titanium dioxide white antirust pigment and preparing method thereof - Google Patents
Novel titanium dioxide white antirust pigment and preparing method thereof Download PDFInfo
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- CN104194498A CN104194498A CN201410247277.4A CN201410247277A CN104194498A CN 104194498 A CN104194498 A CN 104194498A CN 201410247277 A CN201410247277 A CN 201410247277A CN 104194498 A CN104194498 A CN 104194498A
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- titanium dioxide
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Abstract
The invention discloses novel titanium dioxide white antirust pigment and a preparing method thereof. The method includes adding deionized water into a titanium dioxide crude product not subjected to surface treatment to obtain a slurry material, adding vinyl alkoxy phosphate and an alcohol amine type dispersant into the slurry material, dispersing at a high speed to fully mix the compounds, adjusting the pH value to 6-8, adding a nanometer material, dispersing at a high speed to fully mix the compounds, drying the material mixture that is fully mixed, performing oxygen-free calcination at 200-300 DEG C for 1-1.5 h, cooling and smashing to obtain a product. The vinyl alkoxy phosphate and the nanometer material cover titanium dioxide particles. When a metal surface is coated with the pigment, the phosphate group and the nanometer material can largely improve compactness of coatings and the phosphate group can form a phosphate coating with a substrate, thus effectively improving corrosion resistance of the pigment. In addition, acrylate groups exist on surfaces of the particles, thus effectively improving the dispersion stability of the pigment in an organic medium.
Description
Technical field
The present invention relates to a kind of white pigment and preparation method thereof, be specifically related to a kind of new modified titanium dioxide white rust-stabilising pigment and preparation method thereof.
Background technology
Titanium dioxide is the fields such as a kind of white pigment of excellent performance, widespread use and coating, ink, plastics, papermaking.But himself photochemical activity of the TiO 2 particles of uncoated modification is high, very easily cause the organic medium in application system that chemical bond energy fracture and chemical degradation occur, cause the decline of overall performance, apply limited.Main manifestations on coating and printing ink is efflorescence, loss of gloss, xanthochromia etc.Meanwhile, titanium dioxide surface is very easily hydrophilic, so be the most effective approach that improves its stable dispersion in organic medium to its surperficial modification.Improving the hydrophilic while, the group of introducing some antiseptic property excellences can effectively improve the over-all properties of particle simultaneously.On this basis, the surface modification of titanium dioxide is just seemed to particularly important.
Summary of the invention
First technical problem to be solved by this invention is to provide the new modified titanium dioxide white rust-stabilising pigment of the corrosion-resistant and stably dispersing performance of a kind of effective raising.
For solving the problems of the technologies described above, modifying titanium dioxide white pigment of the present invention comprises the slurry that the weight concentration be made up of not surface treated titanium dioxide crude product and deionized water is 60～80%, in with the weight ratio of not surface treated titanium dioxide crude product, in this slurry, also add following raw materials according:
Vinyl alkoxy phosphoric acid ester: 1～4%,
Nano material: 2～10%
Alcamines dispersion agent: 0.1～0.5%.
Described alcamines dispersion agent be α-amino isopropyl alcohol, diethanolamine, trolamine,, N, the one or more combination of N-dimethylethanolamine.
Described nano material is the one or more combination in nano-calcium carbonate, Nano silica sol and nano silicon etc.
The model that vinyl alkoxy phosphoric acid ester is produced by French Rhodia is the vinyl alkoxy phosphoric acid ester of PAM-100.
Technique scheme utilizes vinyl alkoxy phosphoric acid ester (organic substance of phosphoric acid group) and nano material to be coated TiO 2 particles, in the time being coated on metallic surface, bound phosphate groups and nano material can improve the compactness of coating greatly, and bound phosphate groups can form phosphate coating with base material, thereby effectively improve the Corrosion Protection of pigment, the usage quantity that reduces pigment, has reduced cost greatly.Particle surface has the existence of acrylate group simultaneously, effectively improves the dispersion stabilization of pigment in organic medium.
Second technical problem to be solved by this invention is to provide a kind of preparation method of modifying titanium dioxide white rust-stabilising pigment.
For solving the problems of the technologies described above, the preparation method of the novel modifying titanium dioxide of the present invention white rust-stabilising pigment is: first by not surface treated titanium dioxide crude product, adding deionized water to make weight concentration is 60～80% slurry, in with the weight ratio of not surface treated titanium dioxide crude product, in slurry, add 1～4% vinyl alkoxy phosphoric acid ester and 0.1～0.5% alcamines dispersion agent, high speed dispersion fully mixes it.Again the pH value of slurry is adjusted to 6-8, adds 2～10% nano materials, high speed dispersion mixes it.By after the drying materials mixing, at 200～300 DEG C, carry out anaerobic calcining 1～1.5 hour, cooling crush obtains product.
Described nano material is the one or more combination in nano-calcium carbonate, Nano silica sol and nano silicon etc.
Described alcamines dispersion agent is diethanolamine, trolamine, α-amino isopropyl alcohol, N, the one or more combination of N-dimethylethanolamine.
The not surface treated titanium dioxide crude product that the present invention adopts is the not surface treated titanium dioxide making by sulfuric acid process.Sulfuric acid process is that titanium-iron powder and the vitriol oil are carried out to acidolysis reaction production titanous sulfate, generates metatitanic acid, more obtain titanium dioxide product through calcining, pulverizing through hydrolysis.This method can be produced anatase titanium dioxide and rutile titanium dioxide.
The model that vinyl alkoxy phosphoric acid ester is produced by French Rhodia is the vinyl alkoxy phosphoric acid ester of PAM-100.
The present invention, by the surface treatment to titanium dioxide, can effectively be covered its surperficial photochemical activity point, can effectively improve the chemical stability of titanium dioxide application system.Utilize vinyl alkoxy phosphoric acid ester to be coated its surface, improve antiseptic property by bound phosphate groups in the phosphatization complexing action of metallic surface on the one hand, meanwhile, make titanium dioxide surface contain acrylate group, can effectively improve its stably dispersing performance in organic medium.Nano material can effectively be improved the compactness of coating, improves greatly the effect blocking water, thereby improves rustless property, further improves the antiseptic property of whole product, reaches a best effect.
The invention has the advantages that the condition of surface that can effectively improve titanium dioxide, the covered effect of realizing ideal.In improving Investigation of stabilized dispersion of nano, also there is good antiseptic property.Therefore, reduce the usage quantity of pigment, reduced greatly cost.
Embodiment
Example one:
Adopt 60 kilograms of not surface treated titanium dioxide crude products, adding 40 kilograms of deionized waters to make concentration is 60% slurry, add the PAM-100 of 0.48 kilogram and the trolamine of 0.30 kilogram, utilize dispersion machine to turn lower high speed dispersion 1500 it is fully mixed.PH value is adjusted to 7, adds 5 kilograms of nano-calcium carbonates, turn lower high speed dispersion 1500 it is fully mixed.After the powder mixing is dried, carry out anaerobic calcining 1 hour at 240 DEG C, then cooling crush obtains efficient corrosion resisting and 66 kilograms of the white pigments that easily disperse.
Example two:
Adopt 70 kilograms of not surface treated titanium dioxide crude products, adding 30 kilograms of deionized waters to make concentration is 70% slurry, add the PAM-100 of 1 kilogram and the trolamine of 0.40 kilogram, utilize dispersion machine to turn lower high speed dispersion 1500 it is fully mixed.PH value is adjusted to 7, adds 6 kilograms of Nano silica sols, turn lower high speed dispersion 1500 it is fully mixed.After the powder mixing is dried, carry out anaerobic calcining 1 hour at 270 DEG C, then cooling crush obtains efficient corrosion resisting and 77 kilograms of the white pigments that easily disperse.
Example three:
Adopt 60 kilograms of not surface treated titanium dioxide crude products, adding 40 kilograms of deionized waters to make concentration is 60% slurry, add the PAM-100 of 1.5 kilograms and the diethanolamine of 0.30 kilogram, utilize dispersion machine to turn lower high speed dispersion 1500 it is fully mixed.PH value is adjusted to 7, adds 5 kilograms of nano silicons, turn lower high speed dispersion 1500 it is fully mixed.After the powder mixing is dried, carry out anaerobic calcining 1.5 hours at 240 DEG C, then cooling crush obtains efficient corrosion resisting and 81 kilograms of the white pigments that easily disperse.
Dispersed detection:
After getting respectively sample that 4 grams of untreated samples and example one to ten obtain and 6 grams of Synolac grinding distribution 300 turning on plain grinding instrument, detect the fineness of sample with Hegman grind gage, judge the dispersiveness of product according to the size of fineness, as table one.
Table one: the dispersed data of product
| Sample number into spectrum | Untreated samples | Example one | Example two | Example three |
| Fineness, μ m | 56 | 8 | 11 | 9 |
Antiseptic property detects:
First sample (sample that untreated samples, example one to ten obtain) is obtained to sample paint according to the anticorrosion middle grey base paint formulation of table two.
Table two: anticorrosion middle grey base paint formulation
| Raw material | Sample paint (components by weight percent) |
| Epoxy resin (50%) | 480 |
| Sample | 15 |
| Carbon black | 0.5 |
[0034]?
| Talcum powder | 8 |
| Process white | 12 |
| Organophilic clay | 1.5 |
| Dimethylbenzene | 10 |
| Butanols | 5 |
By above-mentioned sample paint and 200# daiamid epoxy curing agent, (according to weight ratio paint in 6: 1, make model with general steel plate, 45 ± 3 microns of paint film thickness, detect salt spray resistance, and performance detection data as shown in Table 3.
Table three: product salt spray resistance
| Sample number into spectrum | Salt fog result (h, non-corrosive, non-foaming, do not come off) |
| The sample paint that untreated samples makes | 120 |
| The sample paint that example one makes | 880 |
| The sample paint that example two makes | 950 |
| The sample paint that example three makes | 900 |
Can find out from table one and table three data, dispersion stabilization and the preservative property of surface treated titanium dioxide are greatly improved, and it is dispersed and rustless property is all very excellent.
Claims (4)
1. a new modified titanium dioxide white rust-stabilising pigment, it is characterized in that: comprise the slurry that the weight concentration be made up of not surface treated titanium dioxide crude product and deionized water is 60～80%, in with the weight ratio of not surface treated titanium dioxide crude product, in this slurry, also add following raw materials according:
Vinyl alkoxy phosphoric acid ester: 1～4%,
Nano material: 2～10%
Alcamines dispersion agent: 0.1～0.5%.
2. the new modified titanium dioxide white rust-stabilising pigment of one according to claim 1, is characterized in that: the described nano material that has refers to the one or more combination in nano-calcium carbonate, Nano silica sol and nano silicon.
3. the preparation method of an a kind of new modified titanium dioxide white rust-stabilising pigment as claimed in claim 1 or 2, it is characterized in that: first by not surface treated titanium dioxide crude product, adding deionized water to make weight concentration is 60～80% slurry, in with the weight ratio of not surface treated titanium dioxide crude product, in slurry, add 1～4% vinyl alkoxy phosphoric acid ester and 0.1～0.5% alcamines dispersion agent, high speed dispersion fully mixes it.Adjust pH value to 6-8, add nano material, high speed dispersion mixes it, by after the drying materials mixing, carries out anaerobic calcining 1～1.5 hour at 200～300 DEG C, and cooling crush obtains product.
4. preparation method according to claim 3, is characterized in that: described alcamines dispersion agent is diethanolamine, trolamine, α-amino isopropyl alcohol, N, the one or more combination of N-dimethylethanolamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410247277.4A CN104194498A (en) | 2014-06-03 | 2014-06-03 | Novel titanium dioxide white antirust pigment and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410247277.4A CN104194498A (en) | 2014-06-03 | 2014-06-03 | Novel titanium dioxide white antirust pigment and preparing method thereof |
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| CN104194498A true CN104194498A (en) | 2014-12-10 |
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| CN201410247277.4A Pending CN104194498A (en) | 2014-06-03 | 2014-06-03 | Novel titanium dioxide white antirust pigment and preparing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967338A (en) * | 2017-05-17 | 2017-07-21 | 河北晨阳工贸集团有限公司 | A kind of aqueous titanium dioxide slurry and preparation method thereof |
| CN114989639A (en) * | 2022-06-22 | 2022-09-02 | 龙佰集团股份有限公司 | Titanium dioxide, preparation method thereof and coating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649321A (en) * | 1969-01-14 | 1972-03-14 | Porte Ind Ltd | Treatment of pigments |
| CN1374990A (en) * | 1999-09-14 | 2002-10-16 | 石原产业株式会社 | Titanium dioxide pigment, process for producing the same, and resin composition containing the ame |
| WO2006023065A2 (en) * | 2004-08-09 | 2006-03-02 | Behr Process Corporation | Improved pigment spacing |
| CN103396682A (en) * | 2013-08-09 | 2013-11-20 | 安徽奥邦新材料有限公司 | Modified titanium dioxide white rust-proof pigment and preparation method thereof |
-
2014
- 2014-06-03 CN CN201410247277.4A patent/CN104194498A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649321A (en) * | 1969-01-14 | 1972-03-14 | Porte Ind Ltd | Treatment of pigments |
| CN1374990A (en) * | 1999-09-14 | 2002-10-16 | 石原产业株式会社 | Titanium dioxide pigment, process for producing the same, and resin composition containing the ame |
| WO2006023065A2 (en) * | 2004-08-09 | 2006-03-02 | Behr Process Corporation | Improved pigment spacing |
| CN103396682A (en) * | 2013-08-09 | 2013-11-20 | 安徽奥邦新材料有限公司 | Modified titanium dioxide white rust-proof pigment and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967338A (en) * | 2017-05-17 | 2017-07-21 | 河北晨阳工贸集团有限公司 | A kind of aqueous titanium dioxide slurry and preparation method thereof |
| CN114989639A (en) * | 2022-06-22 | 2022-09-02 | 龙佰集团股份有限公司 | Titanium dioxide, preparation method thereof and coating |
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Application publication date: 20141210 |