CN106365171A - Quickly-drying silicon sol and preparation method thereof - Google Patents
Quickly-drying silicon sol and preparation method thereof Download PDFInfo
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- CN106365171A CN106365171A CN201610730102.8A CN201610730102A CN106365171A CN 106365171 A CN106365171 A CN 106365171A CN 201610730102 A CN201610730102 A CN 201610730102A CN 106365171 A CN106365171 A CN 106365171A
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- ludox
- humic acid
- preparation
- quick
- dried
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/146—After-treatment of sols
- C01B33/148—Concentration; Drying; Dehydration; Stabilisation; Purification
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- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
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Abstract
The invention discloses a preparation method of quickly-drying silicon sol. The preparation method includes the steps of: S01) preparing a humic acid solution and regulating the pH thereof to 8-10; S02) dropwise adding the humic acid solution to a silicon sol solution, and stirring and mixing the mixture to form a humic acid/silicon sol mixture system; S03) filtering the humic acid/silicon sol mixture system and washing the mixture system with anhydrous ethanol, and re-dispersing the filtered mixture in a polyamide latex water solution to prepare the quickly-drying silicon sol. In the quickly-drying silicon sol, SiO2 particles are uniformly dispersed in the polymer emulsion. The product is cost-saving and is environment-protective.
Description
Technical field
The present invention relates to a kind of be dried quick Ludox and preparation method thereof, belong to technical field of nano material.
Background technology
Ludox is dispersion liquid in water or in solvent for the nano level silica dioxide granule, has specific surface area big, resistance to
The characteristics such as high temperature, antioxidation, are that a kind of preferable polymer emulsion increases
Strong material.Due to nanometer sio in Ludox2There is great amount of hydroxy group in particle surface, need to carry out hydrophobically modified to it, make
sio2Particle can be uniformly dispersed in polymer emulsion.So far, main modifying agent mainly includes machine modifying agent and gold
Belong to modifying agent two big class.Organic modifiers are mainly silane coupler, but silane coupler can occur violent water in water
Solution condensation reaction, leads to the generation of gel；What metal modifiers were commonly used is aluminum, stannum, zinc and lead, but the cost of metal modifiers
Higher, the problems such as in addition can cause heavy metal pollution.In addition, common Ludox slow drying speed, the production cycle is caused to extend,
It is unfavorable for the raising of production efficiency.
Content of the invention
The technical problem to be solved in the present invention is to provide that a kind of Ludox arid cycle is short, sio2Uniform particle is scattered
The preparation method of quick Ludox is dried；Further, the present invention provides a kind of quick silicon of cost-effective, environment-friendly type drying molten
Glue and preparation method thereof.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of dry quick Ludox preparation method, comprises the following steps:
S01, prepares Humic Acid Solution, and then carry out acid-alkali accommodation to make its ph is between 8 ~ 10；
S02, the Humic Acid Solution obtaining in s01 is added drop-wise to stirring mixing in silicon sol solution, forms humic acid/Ludox and mixes
Fit system；
S03, with dehydrated alcohol is washed after the humic acid obtaining/Ludox mixed system is filtered in s02, finally will
The mixture being filtrated to get is re-dispersed in polyamide emulsion hydrosol, is obtained and quick Ludox is dried.
The concentration of described silicon sol solution is 30 ~ 40wt%.
Described humic acid extracts from the soil organism or water body organic matter.
The acid of described acid-alkali accommodation includes dilute hydrochloric acid or dust technology, and the alkali of described acid-alkali accommodation includes sodium hydroxide.
The concentration of described humic acid is between 1000mg/l to 2000mg/l.
Any one of following condition or multinomial is also included in s02:
A. the reaction temperature of described stirring mixing is 40oC to 50oBetween c；
B. described stirring is mixed into continuously stirred mixing, and the time of described continuously stirred mixing is at least 24 hours；
C. the drop rate of described humic acid is 5 ~ 10ml/min.
A kind of dry quick Ludox, is obtained by aforementioned preparation process.
Beneficial effects of the present invention: a kind of rapid draing Ludox that the present invention provides and preparation method thereof, polyamide breast
The setting of glue, can shorten Ludox arid cycle, and the Humic Acid Solution obtaining in s01 is added drop-wise to stirring in silicon sol solution
Mixing, forms humic acid/Ludox mixed system, sio2Particle can adsorb the humic acid with negative charge so as to itself carries
There is negative charge, increase sio2Repulsive interaction between particle, final sio2Particle in water or in solvent dispersed formation be difficult
The Ludox stability reunite, generating is high；Described humic acid extracts from the soil organism or water body organic matter, and humic acid exists
It is widely present in nature, occupies the major part in natural organic matter, from humic acid as the material of modified silicasol, become
This is relatively low, and humic acid itself is extremely stable, generation environment will not pollute, has the effect of environmental protection.
Specific embodiment
The knot present invention is further described below, and following examples are only used for the technical side of the present invention is clearly described
Case, and can not be limited the scope of the invention with this.
Embodiment 1
A kind of dry quick Ludox preparation method, comprises the following steps:
S01, prepares Humic Acid Solution, and then carry out acid-alkali accommodation to make its ph is 8；
S02, the Humic Acid Solution obtaining in s01 is added drop-wise to stirring mixing in silicon sol solution, forms humic acid/Ludox and mixes
Fit system；
S03, with dehydrated alcohol is washed after the humic acid obtaining/Ludox mixed system is filtered in s02, finally will
The mixture being filtrated to get is re-dispersed in polyamide emulsion hydrosol, is obtained and quick Ludox is dried.
The concentration of described silicon sol solution is 30wt%.
Described humic acid extracts from the soil organism or water body organic matter.
The acid of described acid-alkali accommodation includes dilute hydrochloric acid or dust technology, and the alkali of described acid-alkali accommodation includes sodium hydroxide.
The concentration of described humic acid is 1000mg/l.
Any one of following condition or multinomial is also included in s02:
A. the reaction temperature of described stirring mixing is 40oc；
B. described stirring is mixed into continuously stirred mixing, at least 24 hours time of described continuously stirred mixing；
C. the drop rate of described humic acid is 5ml/min.
A kind of dry quick Ludox, is obtained by aforementioned preparation process.
Embodiment 2
A kind of dry quick Ludox preparation method, comprises the following steps:
S01, prepares Humic Acid Solution, and then carry out acid-alkali accommodation to make its ph is 10；
S02, the Humic Acid Solution obtaining in s01 is added drop-wise to stirring mixing in silicon sol solution, forms humic acid/Ludox and mixes
Fit system；
S03, with dehydrated alcohol is washed after the humic acid obtaining/Ludox mixed system is filtered in s02, finally will
The mixture being filtrated to get is re-dispersed in polyamide emulsion hydrosol, is obtained and quick Ludox is dried.
The concentration of described silicon sol solution is 40wt%.
Described humic acid extracts from the soil organism or water body organic matter.
The acid of described acid-alkali accommodation includes dilute hydrochloric acid or dust technology, and the alkali of described acid-alkali accommodation includes sodium hydroxide.
The concentration of described humic acid is 2000mg/l.
Any one of following condition or multinomial is also included in s02:
A. the reaction temperature of described stirring mixing is 50oc；
B. described stirring is mixed into continuously stirred mixing, at least 24 hours time of described continuously stirred mixing；
C. the drop rate of described humic acid is 10ml/min.
A kind of dry quick Ludox, is obtained by aforementioned preparation process.
The above be only the preferred embodiment of the present invention it should be pointed out that: for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of quick Ludox preparation method is dried it is characterised in that: comprise the following steps:
S01, prepares Humic Acid Solution, and then carry out acid-alkali accommodation to make its ph is between 8 ~ 10；
S02, the Humic Acid Solution obtaining in s01 is added drop-wise to stirring mixing in silicon sol solution, forms humic acid/Ludox and mixes
Fit system；
S03, with dehydrated alcohol is washed after the humic acid obtaining/Ludox mixed system is filtered in s02, finally will
The mixture being filtrated to get is re-dispersed in polyamide emulsion hydrosol, is obtained and quick Ludox is dried.
2. according to claim 1 a kind of quick Ludox preparation method is dried it is characterised in that: described silicon sol solution
Concentration be 30 ~ 40wt%.
3. according to claim 1 a kind of quick Ludox preparation method is dried it is characterised in that: described humic acid is from soil
Extract in earth organic matter or water body organic matter.
4. according to claim 1 a kind of quick Ludox preparation method is dried it is characterised in that: described acid-alkali accommodation
Acid includes dilute hydrochloric acid or dust technology, and the alkali of described acid-alkali accommodation includes sodium hydroxide.
5. according to claim 1 a kind of quick Ludox preparation method is dried it is characterised in that: described humic acid dense
Spend between 1000mg/l to 2000mg/l.
6. a kind of preparation method that quick Ludox is dried according to claim 1 is it is characterised in that also wrap in s02
Include any one of following condition or multinomial:
A. the reaction temperature of described stirring mixing is 40oC to 50oBetween c；
B. described stirring is mixed into continuously stirred mixing, and the time of described continuously stirred mixing is at least 24 hours；
C. the drop rate of described humic acid is 5 ~ 10ml/min.
7. a kind of quick Ludox is dried it is characterised in that: any one of claim 1-6, preparation method is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610730102.8A CN106365171B (en) | 2016-08-26 | 2016-08-26 | A kind of quick Ludox of drying and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610730102.8A CN106365171B (en) | 2016-08-26 | 2016-08-26 | A kind of quick Ludox of drying and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106365171A true CN106365171A (en) | 2017-02-01 |
| CN106365171B CN106365171B (en) | 2018-08-28 |
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| CN201610730102.8A Active CN106365171B (en) | 2016-08-26 | 2016-08-26 | A kind of quick Ludox of drying and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000178020A (en) * | 1998-12-15 | 2000-06-27 | Nippon Chem Ind Co Ltd | High purity silica aqueous sol and method for producing the same |
| CN1907851A (en) * | 2005-08-02 | 2007-02-07 | 日产化学工业株式会社 | Organosol of silica and process for producing the same |
| CN101475180A (en) * | 2009-01-16 | 2009-07-08 | 清华大学 | Purification method of ultra-pure silicon dioxide sol |
| CN104607591A (en) * | 2015-01-16 | 2015-05-13 | 青岛新诺科铸造材料科技有限公司 | Quick-drying silica sol and preparation method thereof |
-
2016
- 2016-08-26 CN CN201610730102.8A patent/CN106365171B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000178020A (en) * | 1998-12-15 | 2000-06-27 | Nippon Chem Ind Co Ltd | High purity silica aqueous sol and method for producing the same |
| CN1907851A (en) * | 2005-08-02 | 2007-02-07 | 日产化学工业株式会社 | Organosol of silica and process for producing the same |
| CN101475180A (en) * | 2009-01-16 | 2009-07-08 | 清华大学 | Purification method of ultra-pure silicon dioxide sol |
| CN104607591A (en) * | 2015-01-16 | 2015-05-13 | 青岛新诺科铸造材料科技有限公司 | Quick-drying silica sol and preparation method thereof |
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| CN106365171B (en) | 2018-08-28 |
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