CN104893363A - Modification method of precipitation-process silica white - Google Patents
Modification method of precipitation-process silica white Download PDFInfo
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- CN104893363A CN104893363A CN201510302166.3A CN201510302166A CN104893363A CN 104893363 A CN104893363 A CN 104893363A CN 201510302166 A CN201510302166 A CN 201510302166A CN 104893363 A CN104893363 A CN 104893363A
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- carbon black
- white carbon
- silica white
- precipitation
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Abstract
The invention discloses a modification method of precipitation-process silica white, which comprises the following steps: (1) dispersing silica white in water to obtain a dispersion solution; (2) sequentially adding sodium hydroxide and tert-butyl alcohol into the dispersion solution in the step (1), stirring uniformly, heating to 70-80 DEG C, and keeping the temperature for 10-20 minutes; and (3) filtering, and drying to obtain the modified silica white. The method can obviously improve the lipophilicity of the silica white, and the oil absorption number can reach 350-360 ml/100g.
Description
Technical field
The present invention relates to a kind of method of modifying of precipitated silica.
Background technology
Precipitated silica has large specific surface area, is widely used in rubber, plastics, coating, medicine, daily-use chemical industry numerous areas.But the hydroxyl that poly-siloxane bond and outside surface due to white carbon black inside exist, makes it be wetting ability, is difficult to moistening and dispersion, and always tends to conglomerate, affect the application performance of product in organic phase.As with the good compatibility of polymkeric substance and do not disperseed in vulcanization of rubber system, in coating products, easily cause coagulative precipitation etc.For this reason, need to carry out surface modification to white carbon black, to improve its effect, improve value-added content of product.
Summary of the invention
The technical problem to be solved in the present invention overcomes existing defect, provides a kind of method of modifying of precipitated silica.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A method of modifying for precipitated silica, comprises the steps:
(1) white carbon black is scattered in water, obtains dispersion liquid;
(2) in the dispersion liquid of step (1), add sodium hydroxide and the trimethyl carbinol successively, stir, be heated to 70-80 DEG C, insulation 10-20min;
(3) filter, dry, obtain modified white carbon black.
Further, step (2) adds sodium hydroxide by the 2-4% of white carbon black weight.
Further, step (2) adds the trimethyl carbinol by the 1-5% of white carbon black weight.
Adopt the inventive method method, obviously can improve the oleophylic performance of white carbon black, oil-absorption(number) can reach 350-360ml/100g.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is process flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
embodiment 1
As shown in Figure 1, the present invention, to the method for modifying of white carbon black prepared by traditional precipitator method, comprises the steps:
(1) 100g white carbon black is scattered in 300ml water, obtains dispersion liquid;
(2) in the dispersion liquid of step (1), add 3g sodium hydroxide and the 5g trimethyl carbinol successively, after stirring, be heated to 70 DEG C, insulation 15min;
(3) reaction solution cooling, filters, and dries, obtains modified white carbon black.The oil-absorption(number) (DBP) of modified white carbon black is 357ml/100g.
embodiment 2
A method of modifying for precipitated silica, comprises the steps:
(1) 100g white carbon black is scattered in 400ml water, obtains dispersion liquid;
(2) in the dispersion liquid of step (1), add 4g sodium hydroxide and the 2g trimethyl carbinol successively, after stirring, be heated to 80 DEG C, insulation 10min;
(3) reaction solution cooling, filters, and dries, obtains modified white carbon black.The oil-absorption(number) (DBP) of modified white carbon black is 350ml/100g.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a method of modifying for precipitated silica, comprises the steps:
(1) white carbon black is scattered in water, obtains dispersion liquid;
(2) in the dispersion liquid of step (1), add sodium hydroxide and the trimethyl carbinol successively, stir, be heated to 70-80 DEG C, insulation 10-20min;
(3) filter, dry, obtain modified white carbon black.
2. method according to claim 1, is characterized in that: step (2) adds sodium hydroxide by the 2-4% of white carbon black weight.
3. method according to claim 1, is characterized in that: step (2) adds the trimethyl carbinol by the 1-5% of white carbon black weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302166.3A CN104893363A (en) | 2015-06-05 | 2015-06-05 | Modification method of precipitation-process silica white |
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| CN201510302166.3A CN104893363A (en) | 2015-06-05 | 2015-06-05 | Modification method of precipitation-process silica white |
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| CN104893363A true CN104893363A (en) | 2015-09-09 |
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| CN201510302166.3A Pending CN104893363A (en) | 2015-06-05 | 2015-06-05 | Modification method of precipitation-process silica white |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156524A (en) * | 1982-03-06 | 1983-09-17 | Tokuyama Soda Co Ltd | Inorganic oxide and preparation thereof |
| US5064473A (en) * | 1987-12-26 | 1991-11-12 | Nissan Chemical Industries, Ltd. | Filler for heat-sensitive recording paper and process for producing the same |
| US5304243A (en) * | 1990-09-04 | 1994-04-19 | Agency Of Industrial Science & Technology | Method of producing organic group modified silica particles |
| CN101205423A (en) * | 2006-12-18 | 2008-06-25 | 天津科技大学 | Method for preparing hydrophobic nano silica |
| CN101230212A (en) * | 2007-01-24 | 2008-07-30 | 沈阳化工股份有限公司 | White carbon black surface recombination modified preparation method |
| CN101426725A (en) * | 2006-04-20 | 2009-05-06 | 旭硝子株式会社 | Core-shell silica and method for producing same |
| CN101721982A (en) * | 2009-11-06 | 2010-06-09 | 河南省生物工程技术研究中心 | Method for preparing chromatographic-grade surface-modified hydrophobic spherical silicon dioxide |
| CN1980861B (en) * | 2004-07-01 | 2012-08-29 | 赢创德固赛有限公司 | Silicon dioxide dispersion comprising polyol |
| CN103242683A (en) * | 2013-05-03 | 2013-08-14 | 西南科技大学 | Method for preparing vinyl-functionalized white carbon black for reinforcing methyl vinyl silicone rubber |
| CN103360798A (en) * | 2013-07-19 | 2013-10-23 | 合肥工业大学 | Method for preparing hydrophobic white carbon black |
| CN103360796A (en) * | 2013-06-25 | 2013-10-23 | 安徽敬业纳米科技有限公司 | Method for in situ modification of amphoteric nano silica |
| CN103359739A (en) * | 2013-06-25 | 2013-10-23 | 安徽敬业纳米科技有限公司 | Method for producing special modified nano silicon dioxide for plastics in large scale |
-
2015
- 2015-06-05 CN CN201510302166.3A patent/CN104893363A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156524A (en) * | 1982-03-06 | 1983-09-17 | Tokuyama Soda Co Ltd | Inorganic oxide and preparation thereof |
| US5064473A (en) * | 1987-12-26 | 1991-11-12 | Nissan Chemical Industries, Ltd. | Filler for heat-sensitive recording paper and process for producing the same |
| US5304243A (en) * | 1990-09-04 | 1994-04-19 | Agency Of Industrial Science & Technology | Method of producing organic group modified silica particles |
| CN1980861B (en) * | 2004-07-01 | 2012-08-29 | 赢创德固赛有限公司 | Silicon dioxide dispersion comprising polyol |
| CN101426725A (en) * | 2006-04-20 | 2009-05-06 | 旭硝子株式会社 | Core-shell silica and method for producing same |
| CN101205423A (en) * | 2006-12-18 | 2008-06-25 | 天津科技大学 | Method for preparing hydrophobic nano silica |
| CN101230212A (en) * | 2007-01-24 | 2008-07-30 | 沈阳化工股份有限公司 | White carbon black surface recombination modified preparation method |
| CN101721982A (en) * | 2009-11-06 | 2010-06-09 | 河南省生物工程技术研究中心 | Method for preparing chromatographic-grade surface-modified hydrophobic spherical silicon dioxide |
| CN103242683A (en) * | 2013-05-03 | 2013-08-14 | 西南科技大学 | Method for preparing vinyl-functionalized white carbon black for reinforcing methyl vinyl silicone rubber |
| CN103360796A (en) * | 2013-06-25 | 2013-10-23 | 安徽敬业纳米科技有限公司 | Method for in situ modification of amphoteric nano silica |
| CN103359739A (en) * | 2013-06-25 | 2013-10-23 | 安徽敬业纳米科技有限公司 | Method for producing special modified nano silicon dioxide for plastics in large scale |
| CN103360798A (en) * | 2013-07-19 | 2013-10-23 | 合肥工业大学 | Method for preparing hydrophobic white carbon black |
Non-Patent Citations (1)
| Title |
|---|
| 李永河: "《橡胶硫化技术》", 31 May 2012, 黄河水利出版社 * |
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Application publication date: 20150909 |