CN100369979C - Water-based dispersed composition of nanometre oxide and its preparation method - Google Patents
Water-based dispersed composition of nanometre oxide and its preparation method Download PDFInfo
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- CN100369979C CN100369979C CNB2005100409654A CN200510040965A CN100369979C CN 100369979 C CN100369979 C CN 100369979C CN B2005100409654 A CNB2005100409654 A CN B2005100409654A CN 200510040965 A CN200510040965 A CN 200510040965A CN 100369979 C CN100369979 C CN 100369979C
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Abstract
The present invention relates to a dispersion substance of various inorganic nanometer oxides and a preparation method thereof. The present invention aims to solve the problems of poor dispersivity and low stability existing in the existing nanometer powder materials. The present invention is characterized in that the present invention provides a water-base dispersion composition prepared from a titanium dioxide powder material, a silicon dioxide powder material, additives, a surface treating agent, a dispersing agent and water; the preparation method is used for dispersion only by using mechanical force, and therefore, has the advantages of low energy consumption and convenient operation; the obtained dispersion system can be stably stored for 1 to 10 months.
Description
Technical field
The present invention relates to a kind of dispersion thing of nano-powder, particularly relate to the water base dispersion dispersive composition and the preparation method of one kind of multiple inorganic nanometer oxides.
Background technology
How improving dispersiveness and the stability of nano-powder in liquid phase medium is important research project in the current nanoscale science and technology.Nano-powder dispersive importance has been deep in the fields such as metallurgy, chemical industry, food, medicine, coating, papermaking, building and material.At chemical field, as industries such as coating, fuel, printing ink, makeup, the dispersiveness of the nano-powder in the product and dispersion stabilization directly influence its quality and performance.In the prior art, dispersing method commonly used has stirring, grinding, method such as ultrasonic, can be referring to China Patent No. 01119999.7, and title: nano Water dispersion medium composition and its production and use, the median size of its powder body material are the 1-100 nanometer.This method complex process, energy consumption is higher, and the dispersion stabilization of nano-powder does not specify in this patent.
Summary of the invention
The objective of the invention is: the water-based dispersed composition that the high nano-oxide of a kind of dispersiveness and dispersion stabilization is provided.Another object of the present invention is: provide that a kind of technology is simple and direct, the water-based dispersed composition preparation method of the relatively low nano-oxide of energy consumption.
The technical solution that realizes the foregoing invention purpose is as follows:
1, the water-based dispersed composition of nano-oxide is characterized in that: made by following materials of weight proportions
Titanium dioxide powder material 1-25 part
Silicon-dioxide powdery material 1-25 part
Silicon-dioxide composite powder material 1-10 part
Additive 1-10 part
Surface treatment agent 1-10 part
Dispersion agent 1-10 part
Water 45-70 part.
2, according to the preparation method of the water-based dispersed composition of above-mentioned 1 described nano-oxide: it is characterized in that:
Comprise the steps:
A, by the prescription with water and dispersion agent uniform mixing, be mixed with stabilizing solution;
B, powder body material, additive, surface treatment agent etc. are added in the stabilizing solution of a step preparation, stir regulator solution pH to 7-9 by prescription;
C, water-bath under 35-90 ℃ of temperature condition mixed 20-120 minute with the shearing rate high speed shear of 2000-8500rpm, made the water-based dispersed composition of stabilized nano oxide compound.
3, according to the water-based dispersed composition of above-mentioned 1 described nano-oxide, it is characterized in that: described titanium dioxide powder material is for spherical, outward appearance is a white powder, and the particle diameter of nanometer anatase titania powder and rutile-type nano titania powder is 10nm-30nm.
4, according to the water-based dispersed composition of above-mentioned 1 described nano-oxide, it is characterized in that: described silicon-dioxide powdery material is for spherical, and outward appearance is a white powder, and particle diameter is 10-40nm.
5, according to the water-based dispersed composition of above-mentioned 1 described nano-oxide, it is characterized in that: described silicon-dioxide composite powder material is for spherical, and outward appearance is a white powder, can be that silicon-dioxide carries aluminium powder, and its particle diameter is 20-60nm; Also can be the composite granule of nano silicon and nano zine oxide, its particle diameter be 20-50nm, and both proportionings are 2: 1～5: 1.
6, according to the water-based dispersed composition of above-mentioned 1 described nano-oxide, it is characterized in that: described additive is azo-compound, nitrile compound, mineral sulfates, organic salt hydrochlorate, it promptly can be Potassium Persulphate, being Sodium Persulfate, is Diisopropyl azodicarboxylate, is azo diisopropyl nitrile, it is triethylamine hydrochloride, its role is to that nano material is carried out the surface and coat processing, reduce the trend of its reunion, improve the dispersion stabilization of nano material.
7, according to the water-based dispersed composition of above-mentioned 1 described nano-oxide, it is characterized in that: described surface treatment agent is the material that contains functional groups such as two keys, hydroxyl, promptly can be oleic acid, be vinylformic acid, it is positive hexadecanol, be benzamide, its role is to the enhanced surface treatment agent nano material coating effect.
8, according to the water-based dispersed composition of above-mentioned 1 described nano-oxide, it is characterized in that: described dispersion agent is organic alcohol, organic amine, polyoxy alkene ether etc., can be polyoxyethylene glycol promptly, be cetyltrimethylammonium base amine, is polyoxyethylene octyl phenol ether-10, it is Soxylat A 25-7, be 2-amino-2-methyl-1-propanol, its role is to improve the dispersiveness of nano material in water, reach the requirement of nanoscale dispersive.
9, according to the preparation method of the water-based dispersed composition of above-mentioned 2 described nano-oxides, it is characterized in that: described water-bath is water bath with thermostatic control, and temperature range is 30-80 ℃, and described water-bath is the common process method, is material to be placed on carry out heating in water bath in the water.
The existing body of useful technique effect of the present invention is aspect several:
1, nano-oxide has the performance of many excellences, has excellent ultraviolet radiation absorption characteristic as nano silicon, titanium dioxide etc., and has good photocatalytic activity, can be used for antibiotic and sterilizing, degradation of organic substances etc.; Nano-calcium carbonate calcium powder, nano zine oxide etc. have the auxiliary enhancement of function preferably, and nano oxidized antimony is a kind of good flame material.The water-based dispersed composition of nano-oxide of the present invention can guarantee that nano material forms nano level dispersion in water-based dispersed composition, thereby ensures the nano effect of giving full play to each nano-component.
2, adopt the inventive method can prepare the stable waterborne dispersive composition that contains multiple oxide compound, can give full play to the property of each component; Only used mechanical force to disperse in the present invention, so energy consumption is lower, and simple to operation.
3, the water-based dispersed composition of the nano-oxide heterogeneous dispersion system that to be nano-oxide, additive, surface treatment agent and dispersion agent obtain in the process of chemical transformation and physical mixed, this is a thermodynamic unstable system, is difficult to stably stored generally speaking.Adopt the water-based dispersed composition of the inventive method preparation can stably stored 1～10 month
Embodiment
Below by embodiment the present invention is further described.
Embodiment 1
The water-based dispersed composition of nano-oxide is made by following materials of weight proportions:
Silicon-dioxide powdery material: 15 parts
Silicon-dioxide carries the aluminium powder material: 5 parts
Potassium Persulphate: (additive) 6 parts
Oleic acid: (surface treatment agent) 10 parts
Polyoxyethylene glycol: (dispersion agent) 7 parts
Water: 47 parts
7 parts polyoxyethylene glycol are dissolved in 47 parts the water, add powder body material, oleic acid, Potassium Persulphate, stir, regulate pH to 7 simultaneously, 40 ℃ of water-baths mixed 60 minutes with the shearing rate high speed shear of 3000rpm, made the water-based dispersed composition of stabilized nano oxide compound.Wherein the content of powder body material accounts for 20% of total weight parts.The median size of powder body material is at 80nm.But gained water-based dispersed composition stably stored 3 months.
Wherein water-bath is the common process method, is material to be placed in the water heat.
Embodiment 2
The water-based dispersed composition of nano-oxide is made by following materials of weight proportions:
Rutile titanium dioxide powder body material: 12 parts
Silicon-dioxide powdery material: 3 parts
Diisopropyl azodicarboxylate: (additive) 7 parts
Vinylformic acid: (surface treatment agent) 10 parts
Cetyltrimethylammonium base amine: (dispersion agent) 5 parts
Water: 63 parts
It is 5% solution that cetyltrimethylammonium base amine is mixed with mass concentration, add powder body material, vinylformic acid, Diisopropyl azodicarboxylate, stir, regulate pH to 8 simultaneously, 65 ℃ of water-baths, shearing rate high speed shear with 5000rpm was mixed 80 minutes, made the water-based dispersed composition of stabilized nano oxide compound.Wherein the content of powder body material accounts for 15% of total weight parts.The median size of powder body material is at 60nm.But dispersions obtained system stably stored 4 months.
Embodiment 3
The water-based dispersed composition of nano-oxide is made by following materials of weight proportions:
Anatase titanium dioxide powder body material: 12 parts
Azo diisopropyl nitrile: (additive) 7 parts
Positive hexadecanol: (surface treatment agent) 10 parts
Polyoxyethylene octyl phenol ether-10:(dispersion agent) 4 parts
Water: 66 parts
It is 4% solution that polyoxyethylene octyl phenol ether-10 is mixed with mass concentration, add powder body material, positive hexadecanol, azo diisopropyl nitrile, stir, regulate pH to 7.5 simultaneously, 50 ℃ of water-baths, shearing rate high speed shear with 3000rpm was mixed 50 minutes, made the water-based dispersed composition of stabilized nano oxide compound.Wherein the content of powder body material accounts for 12% of total weight parts.The median size of powder body material is at 50nm.But dispersions obtained system stably stored 2 months.
Embodiment 4
The water-based dispersed composition of nano-oxide is made by following materials of weight proportions:
Anatase titanium dioxide powder body material: 7 parts
Silicon-dioxide and zinc oxide composite powder material: 3 parts
Triethylamine hydrochloride: (additive) 5 parts
Benzamide: (surface treatment agent) 10 parts
Soxylat A 25-7: (dispersion agent) 6 parts
Water: 69 parts
Wherein silicon-dioxide is 2: 1～5: 1 with the quality of zinc oxide composite powder material than scope.
It is 6% solution that Soxylat A 25-7 is mixed with mass concentration, add powder body material, benzamide, triethylamine hydrochloride, stir, regulate pH to 8 simultaneously, 30 ℃ of water-baths, shearing rate high speed shear with 6000rpm was mixed 80 minutes, made the water-based dispersed composition of stabilized nano oxide compound.Wherein the content of powder body material accounts for 10% of total weight parts.The median size of powder body material is at 60nm.But dispersions obtained system stably stored 7 months.
Embodiment 5
The water-based dispersed composition of nano-oxide is made by following materials of weight proportions:
Anatase titanium dioxide powder body material: 3 parts
Rutile titanium dioxide powder body material: 5 parts
Silicon-dioxide powdery material: 2 parts
Silicon-dioxide carries the aluminium powder material: 3 parts
Azo diisopropyl nitrile: (additive) 7 parts
Vinylformic acid: (surface treatment agent) 10 parts
2-amino-2-methyl-1-propanol: (dispersion agent) 4 parts
Water: 66 parts
It is 4% solution that 2-amino-2-methyl-1-propanol is mixed with mass concentration, add powder body material, vinylformic acid, azo diisopropyl nitrile, stir, regulate pH to 9 simultaneously, 70 ℃ of water-baths, shearing rate high speed shear with 8000rpm was mixed 100 minutes, made the water-based dispersed composition of stabilized nano oxide compound.Wherein the content of powder body material accounts for 13% of total weight parts.The median size of powder body material is at 70nm.But dispersions obtained system stably stored 5 months.
Embodiment 6
The water-based dispersed composition of nano-oxide is made by following materials of weight proportions:
Rutile titanium dioxide powder body material: 6 parts
Silicon-dioxide carries the aluminium powder material: 3 parts
Sodium Persulfate: (additive) 7 parts
Benzamide: (surface treatment agent) 10 parts
Soxylat A 25-7: (dispersion agent) 10 parts
Water: 64 parts
It is 10% solution that Soxylat A 25-7 is mixed with mass concentration, add powder body material, benzamide, Sodium Persulfate, stir, regulate pH to 7 simultaneously, 80 ℃ of water-baths, shearing rate high speed shear with 8000rpm was mixed 90 minutes, made the water-based dispersed composition of stabilized nano oxide compound.Wherein the content of powder body material accounts for 9% of total weight parts.The median size of powder body material is at 40nm.But dispersions obtained system stably stored 10 months.
In the foregoing description, the particle diameter of nanometer anatase titania powder and rutile-type nano titania powder is 10nm-30nm; The particle diameter of silicon-dioxide powdery material is 10-40nm; Silicon-dioxide carries aluminium powder, and its particle diameter is 20-60nm; The composite granule of nano silicon and nano zine oxide, its particle diameter are 20-50nm, and both proportionings are 2: 1～5: 1.
Claims (8)
1. the water-based dispersed composition of nano-oxide is characterized in that: made by following materials of weight proportions
Titanium dioxide powder material 1-25 part
Silicon-dioxide powdery material 1-25 part
Silicon-dioxide composite powder material 1-10 part
Additive 1-10 part
Surface treatment agent 1-10 part
Dispersion agent 1-10 part
Water 45-70 part.
2. the preparation method of the water-based dispersed composition of nano-oxide according to claim 1: it is characterized in that:
Comprise the steps:
A, by the prescription with water and dispersion agent uniform mixing, be mixed with stabilizing solution;
B, powder body material, additive, surface treatment agent are added in the stabilizing solution of a step preparation, stir regulator solution pH to 7-9 by prescription;
C, water-bath under 30-80 ℃ of temperature condition mixed 20-120 minute with the shearing rate high speed shear of 2000-8500rpm, made the water-based dispersed composition of stabilized nano oxide compound.
3. the water-based dispersed composition of nano-oxide according to claim 1, it is characterized in that: described titanium dioxide powder material is for spherical, outward appearance is a white powder, is nanometer anatase titania powder or rutile-type nano titania powder, and particle diameter is 10nm-30nm.
4. the water-based dispersed composition of nano-oxide according to claim 1 is characterized in that: described silicon-dioxide powdery material is for spherical, and outward appearance is a white powder, and particle diameter is 10-40nm.
5. the water-based dispersed composition of nano-oxide according to claim 1 is characterized in that: described silicon-dioxide composite powder material is for spherical, and outward appearance is a white powder, is that silicon-dioxide carries aluminium powder, and its particle diameter is 20-60nm; Or the composite granule of nano silicon and nano zine oxide, its particle diameter is 20-50nm, both proportionings are 2: 1～5: 1.
6. the water-based dispersed composition of nano-oxide according to claim 1, it is characterized in that: described additive is Potassium Persulphate, Sodium Persulfate, Diisopropyl azodicarboxylate, azo diisopropyl nitrile or triethylamine hydrochloride.
7. the water-based dispersed composition of nano-oxide according to claim 1 is characterized in that: described surface treatment agent is oleic acid, vinylformic acid, positive hexadecanol or benzamide.
8. the water-based dispersed composition of nano-oxide according to claim 1, it is characterized in that: described dispersion agent is polyoxyethylene glycol, cetyltrimethylammonium base amine, Soxylat A 25-7 or 2-amino-2-methyl-1-propanol.
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| CN102993785B (en) * | 2012-11-13 | 2015-01-14 | 王丕轩 | Preparation method for TiO2/opal composite powder material |
| CN103426586A (en) * | 2013-07-31 | 2013-12-04 | 上海理工大学 | Method for preparing zinc ferrite water-based nanometer magnetic fluid |
| CN103849450B (en) * | 2014-02-24 | 2016-06-22 | 昆明理工大学 | A kind of water-base nano carbide fluid and preparation method thereof |
| CN104177655B (en) * | 2014-07-10 | 2016-01-20 | 池州市英派科技有限公司 | Modified nano-titanium dioxide that a kind of scattered uvioresistant is effective and preparation method thereof |
| CN108359277A (en) * | 2018-02-28 | 2018-08-03 | 陕西理工大学 | A kind of titanium white powder pigment dispersant and preparation method thereof |
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Assignee: Anhui Nanao Carpet Co., Ltd. Assignor: Xu Guocai Contract record no.: 2011340000349 Denomination of invention: Water-based dispersed composition of nanometre oxide and its preparation method Granted publication date: 20080220 License type: Exclusive License Open date: 20060208 Record date: 20110817 |
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