CN106608630A - Modified micro-scale porous spherical silicon dioxide - Google Patents
Modified micro-scale porous spherical silicon dioxide Download PDFInfo
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- CN106608630A CN106608630A CN201510693507.4A CN201510693507A CN106608630A CN 106608630 A CN106608630 A CN 106608630A CN 201510693507 A CN201510693507 A CN 201510693507A CN 106608630 A CN106608630 A CN 106608630A
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- silicon dioxide
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Abstract
The invention relates to modified micro-scale porous spherical silicon dioxide. A preparation method of the modified micro-scale porous spherical silicon dioxide comprises the following steps of adding a certain amount of macromolecule monomers into a colloidal silica system under the conditions of certain temperature and potential of hydrogen, carrying out monomer polymerization, and then utilizing a settling separation method to obtain spherical silicon dioxide; drying the obtained spherical silicon dioxide; pre-dispersing the obtained dried spherical silicon dioxide, then conducting calcining in a high temperature furnace, and finally conducting keeping for 3h at the temperature of 600 DEG C; and dispersing the obtained silicon dioxide into an aqueous solvent system, adding pretreated hydrogen-containing silicone oil, conducting uniform stirring, and then conducting baking in a baking oven at the temperature of 150 DEG C, thereby obtaining the modified micro-scale porous spherical silicon dioxide. The prepared modified micro-scale porous spherical silicon dioxide provided by the invention overcomes the defects such as non-ideal sphericity degree and particle size concentration, and poor surface smoothness of an existing silicon dioxide product, and is particularly applicable in the fields of novel coatings and cosmetics.
Description
Technical field
The present invention relates to a kind of preparing spherical SiO 2, more particularly to a kind of Modified Micron level porous preparing spherical SiO 2.
Background technology
Because silica has the characteristic of heat conduction non-conducting, it is widely used in information electronic ceramics precision instrument new coating as important filler；While the high security of silica, it can be widely used in food and cosmetics industry.The sphericity of existing silica product, particle diameter concentration degree and surface smoothness be not ideal enough, strong influence using effect of the preparing spherical SiO 2 in new coating and cosmetic field.
The content of the invention
The technical problem to be solved in the present invention is the drawbacks described above for how overcoming prior art, there is provided a kind of Modified Micron level porous preparing spherical SiO 2.
To solve above-mentioned technical problem, the preparation method of this Modified Micron level porous preparing spherical SiO 2 is comprised the following steps,
Step 1）：Under the conditions of certain temperature and acid-base value, a certain amount of high polymer monomer is added in Ludox system, then obtain preparing spherical SiO 2 using sedimentation separation method；It is so designed that, is the silica sphere that can be obtained by required particle size by controlling high molecular synthesis because under the conditions of certain temperature and acid-base value, high polymer monomer can cause gathering for Ludox in the polymerization.
Step 2）：By step 1）The preparing spherical SiO 2 for obtaining carries out drying and processing；
Step 3）：By step 2）Preparing spherical SiO 2 after being dried carries out pre-dispersed process, is subsequently placed in high temperature furnace calcining, finally keeps 3h at 600 DEG C；It is so designed that, high temperature causes high molecular polymer slowly to resolve into gas, what is stayed is high-purity smooth porous preparing spherical SiO 2.
Step 4）：By step 3）Obtain silica to be dispersed in aqueous solvent, add pretreated containing hydrogen silicone oil, stir, then in baking oven 150 DEG C dry, obtain final product；It is so designed that, can be modified to the surface of silica water-resistance.
As further concrete optimization, step 1）It is room temperature under the conditions of certain temperature and acid-base value, pH=5 ~ 6；High polymer monomer is the one kind in polyethylene glycol adipate, methacrylic acid macrogol ester, and its addition is the 25 ~ 30% of Ludox quality.
As further concrete optimization, step 2）The drying and processing is carried out in drying oven, and drying time is 4 ~ 6h.
As further concrete optimization, step 3）It is described it is pre-dispersed be add dispersant；600 DEG C of calcining heat.
As further concrete optimization, step 4）The containing hydrogen silicone oil is any one of Methyl Hydrogen Polysiloxane Fluid, methyl and phenyl hydrogen-containing silicon oil, ethyl containing hydrogen silicone oil, ethylphenyl containing hydrogen silicone oil and first class ethyl base containing hydrogen silicone oil or two or more compounds.
It is undesirable that a kind of Modified Micron level porous preparing spherical SiO 2 of the present invention overcomes the sphericity of existing silica product, particle diameter concentration degree, the defects such as poor surface smoothness, prepared Modified Micron level porous preparing spherical SiO 2, is particularly suited for the field in new coating and cosmetics.
Specific embodiment
Embodiment
1
：
Step 1）：Room temperature, pH=6 Under the conditions of；Ludox quality 25% adds a certain amount of polyethylene glycol adipate monomer in Ludox system, then obtains preparing spherical SiO 2 using sedimentation separation method；
Step 2）：By step 1）The preparing spherical SiO 2 for obtaining carries out drying 6h in drying oven；
Step 3）：By step 2）Preparing spherical SiO 2 after being dried is placed in high temperature furnace calcining, and calcining heat is 600 DEG C, and at 600 DEG C 3h is kept；
Step 4）：By step 3）Obtain silica to be dispersed in aqueous solvent, add ethylphenyl containing hydrogen silicone oil and first class ethyl base containing hydrogen silicone oil 1:1 compound, stirs, then in baking oven 150 DEG C dry, obtain final product this Modified Micron level porous preparing spherical SiO 2.
Embodiment
2
：
Step 1）：Room temperature, under the conditions of pH=5；Ludox quality 30% adds a certain amount of methacrylic acid polyethylene glycol ester monomer in Ludox system, then obtains preparing spherical SiO 2 using sedimentation separation method；
Step 2）：By step 1）The preparing spherical SiO 2 for obtaining carries out drying 4h in drying oven；
Step 3）：By step 2）Preparing spherical SiO 2 after being dried is placed in high temperature furnace calcining, and 600 DEG C of calcining heat keeps 3h at 600 DEG C；
Step 4）：By step 3）Obtain silica to be dispersed in aqueous solvent, add Methyl Hydrogen Polysiloxane Fluid, methyl and phenyl hydrogen-containing silicon oil, any one in ethyl containing hydrogen silicone oil, stir, then in baking oven 150 DEG C dry, obtain final product this Modified Micron level porous preparing spherical SiO 2.
It can be that professional and technical personnel in the field realize or use that above-mentioned embodiment is intended to illustrate the present invention; above-mentioned embodiment is modified and will be apparent for those skilled in the art; therefore the present invention includes but is not limited to above-mentioned embodiment; it is any to meet the claims or specification description; meet and principles disclosed herein and novelty, the method for inventive features, technique, product, each fall within protection scope of the present invention.
Claims (5)
1. a kind of Modified Micron level porous preparing spherical SiO 2, is characterized in that：Its preparation method is comprised the following steps,
Step 1）：Under the conditions of certain temperature and acid-base value, a certain amount of high polymer monomer is added in Ludox system, be polymerized by monomer, then obtain preparing spherical SiO 2 using sedimentation separation method；
Step 2）：By step 1）The preparing spherical SiO 2 for obtaining carries out drying and processing；
Step 3）：By step 2）Preparing spherical SiO 2 after being dried carries out pre-dispersed process, is subsequently placed in high temperature furnace and calcines, and finally keeps 3h at 600 DEG C；
Step 4）：By step 3）Obtain silica to be dispersed in aqueous solvent, add pretreated containing hydrogen silicone oil, stir, then in baking oven 150 DEG C dry, obtain final product.
2. Modified Micron level porous preparing spherical SiO 2 according to claim 1, is characterized in that：Step 1）It is normal temperature under the conditions of certain temperature and acid-base value, pH=5 ~ 6；High polymer monomer is the one kind in polyethylene glycol adipate, methacrylic acid macrogol ester, and its addition is the 25 ~ 30% of Ludox quality.
3. Modified Micron level porous preparing spherical SiO 2 according to claim 2, is characterized in that：Step 2）The drying and processing is carried out in drying oven, and drying time is 4 ~ 6h.
4. Modified Micron level porous preparing spherical SiO 2 according to claim 3, is characterized in that：Step 3）In the pre-dispersed dispersion liquid in a solvent for dispersion.
5. Modified Micron level porous preparing spherical SiO 2 according to claim 4, is characterized in that：Step 4）The containing hydrogen silicone oil is any one of Methyl Hydrogen Polysiloxane Fluid, methyl and phenyl hydrogen-containing silicon oil, ethyl containing hydrogen silicone oil, ethylphenyl containing hydrogen silicone oil and first class ethyl base containing hydrogen silicone oil or two or more compounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510693507.4A CN106608630A (en) | 2015-10-21 | 2015-10-21 | Modified micro-scale porous spherical silicon dioxide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510693507.4A CN106608630A (en) | 2015-10-21 | 2015-10-21 | Modified micro-scale porous spherical silicon dioxide |
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| CN106608630A true CN106608630A (en) | 2017-05-03 |
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| CN201510693507.4A Pending CN106608630A (en) | 2015-10-21 | 2015-10-21 | Modified micro-scale porous spherical silicon dioxide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111065603A (en) * | 2018-08-17 | 2020-04-24 | 湖州五爻硅基材料研究院有限公司 | Preparation method of semiconductor packaging material and semiconductor packaging material obtained by preparation method |
| CN115534436A (en) * | 2022-11-02 | 2022-12-30 | 高梵(浙江)信息技术有限公司 | High-performance fiber anti-tearing non-woven fabric and preparation method thereof |
-
2015
- 2015-10-21 CN CN201510693507.4A patent/CN106608630A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 王艳等: ""二氧化硅微球的制备及其官能化"", 《中国陶瓷》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111065603A (en) * | 2018-08-17 | 2020-04-24 | 湖州五爻硅基材料研究院有限公司 | Preparation method of semiconductor packaging material and semiconductor packaging material obtained by preparation method |
| CN115534436A (en) * | 2022-11-02 | 2022-12-30 | 高梵(浙江)信息技术有限公司 | High-performance fiber anti-tearing non-woven fabric and preparation method thereof |
| CN115534436B (en) * | 2022-11-02 | 2024-05-17 | 高梵(浙江)信息技术有限公司 | High-performance fiber anti-tearing non-woven fabric and preparation method thereof |
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Application publication date: 20170503 |