CN103265827B - Method for intercalating and organically modifying kaolin by cetyl trimethyl ammonium bromide - Google Patents
Method for intercalating and organically modifying kaolin by cetyl trimethyl ammonium bromide Download PDFInfo
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- CN103265827B CN103265827B CN201310159864.3A CN201310159864A CN103265827B CN 103265827 B CN103265827 B CN 103265827B CN 201310159864 A CN201310159864 A CN 201310159864A CN 103265827 B CN103265827 B CN 103265827B
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- kaolin
- trimethyl ammonium
- trimethylammonium bromide
- ammonium bromide
- cetyl trimethylammonium
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Abstract
The invention discloses a method for intercalating and organically modifying kaolin by cetyl trimethyl ammonium bromide. The method comprises the following steps of: (1) adding 10 parts by weight of kaolin into a reactor, adding 100 parts by volume of deionized water, mechanically stirring, heating, and keeping constant temperature, to obtain a fluid suspension; (2) in the fluid suspension, adding cetyl trimethyl ammonium bromide, and stirring at normal temperature, to obtain a blend solution, wherein the mass ratio of cetyl trimethyl ammonium bromide to kaolin is 1:10-1:20; and (3) filtrating the blended solution, washing with deionized water, and adding the solid articles into a vacuum drying box to drying at normal temperature after airing, and grinding the solid articles into powder. The modified kaolin of the invention improves microenvironment between layers, makes internal and external surfaces of clay to be changed from hydrophilia into lipophilicity, and enhances performances of composite materials. The modified kaolin of the invention not only can be used as an additive of an organic phase, but also can further react in the organic phase. The modified kaolin of the invention has a wide application prospect in painting technology and ceramic technology fields.
Description
Technical field
The present invention relates to and a kind ofly with cetyl trimethylammonium bromide, intercalation and organically-modified method are carried out to kaolin.
Background technology
Kaolin is a kind of common inorganic clay, and its structure is formed by the staggered accumulation of sharing of Sauerstoffatom by one deck silicon-oxy tetrahedron and one deck alumina octahedral, and chemical molecular formula is Al
2o
32SiO
22H
2o.Kaolin has good coking property and higher resistivity against fire, and these character become the main raw material of Production of Ceramics, and the dispersiveness of kaolin height, adsorptivity make it have a wide range of applications in papermaking and paint field in addition.
The large focus that organically-modified especially intercalation modifying is Materials science research is in recent years carried out to inorganic clay mineral.Intercalation modifying can make the interlamellar spacing of inorganic clay increase, promote mechanical property and the thermal characteristics of inorganic clay, and tensio-active agent is to the intercalation modifying of inorganic clay mineral, inorganic clay surfaces externally and internally becomes hydrophobicity from wetting ability, this can make laminated clay and most of polymer have good consistency, provides the new way of inorganic clay mineral and macromolecular material compound.The such as polynite of some inorganic claies is easier to by other material intercalation, and being prepared in numerous document and patent to have of relevant matrix material relates to.But due to the interlayer structure that kaolin is special, the more difficult realization of kaolinic intercalation, what relate in document is little.And the preparation method at present in existing document can only rest on laboratory stage due to the technique of complexity and higher cost, and the sample intercalation rate of preparation is too low, and these all hamper the material modified practical application of kaolin intercalation.
Summary of the invention
The object of the present invention is to provide and a kind ofly with cetyl trimethylammonium bromide, intercalation and organically-modified method are carried out to kaolin.
As follows with the step that cetyl trimethylammonium bromide carries out intercalation and organically-modified method to kaolin:
1) join in reactor by 10 mass parts kaolin, add 100 parts by volume deionized waters, mechanical stirring, be heated to 60 ~ 80 DEG C, constant temperature 0.5 ~ 1 hour, obtains suspension;
2) in suspension, add cetyl trimethylammonium bromide, cetyl trimethylammonium bromide and kaolinic mass ratio are 1:10 ~ 1:20, and stirring at normal temperature 24 ~ 48 hours, obtains blended liquid;
3) blended liquid after filtration, deionized water wash, after drying, puts into vacuum drying oven Air drying, pulverize.
Described kaolin is the massive ore being clay in natural output form or comparatively loosening.Described cetyl trimethylammonium bromide is the chemical reagent of AG.
The invention has the advantages that and utilize tensio-active agent cetyl trimethylammonium bromide to carry out modification to kaolin, successfully insert kaolinic interlayer, is a kind ofly carry out organically-modified brand-new scheme to kaolin.Compare unmodified kaolin, modified kaolin interlamellar spacing obviously increases, and inside and outside microenvironment occurs obviously to change.Cetyl trimethylammonium bromide used in the present invention and kaolin cheap and easy to get, whole preparation process technique is simple, and practical, the product of acquisition improves the original thermal characteristics of kaolin and mechanical property to a great extent.Therefore it has a wide range of applications in coatings industry, ceramic industry etc.
Embodiment
In the present invention, kaolin is the massive ore being clay in natural output form or comparatively loosening.Described cetyl trimethylammonium bromide is the chemical reagent of AG.
embodiment 1
1) join in reactor by 10 mass parts kaolin, add 100 parts by volume deionized waters, mechanical stirring, be heated to 60 DEG C, constant temperature 0.5 hour, obtains suspension;
2) in suspension, add cetyl trimethylammonium bromide, cetyl trimethylammonium bromide and kaolinic mass ratio are 1:10, and stirring at normal temperature 24 hours, obtains blended liquid;
3) blended liquid after filtration, deionized water wash, after drying, puts into vacuum drying oven Air drying, pulverize.
embodiment 2
1) join in reactor by 10 mass parts kaolin, add 100 parts by volume deionized waters, mechanical stirring, be heated to 80 DEG C, constant temperature 1 hour, obtains suspension;
2) in suspension, add cetyl trimethylammonium bromide, cetyl trimethylammonium bromide and kaolinic mass ratio are 1:20, and stirring at normal temperature 48 hours, obtains blended liquid;
3) blended liquid after filtration, deionized water wash, after drying, puts into vacuum drying oven Air drying, pulverize.
embodiment 3
1) joined in 250mL flask by 10g kaolin, add the deionized water of 100mL, concentration is 10%(w/v), mechanical stirring, is heated to 80 DEG C, and constant temperature 0.5 hour, obtains suspension;
2) in above-mentioned suspension, cetyl trimethylammonium bromide 0.7g is added, stirring at normal temperature 24 hours;
3) after filtration, deionized water wash, after drying, puts into vacuum drying oven Air drying, pulverizes the blended liquid after stirring by solid.
embodiment 4
1) joined in 250mL sesame seed cake by 15g kaolin, add the deionized water of 150mL, concentration is 10%(w/v), mechanical stirring, is heated to 60 DEG C, and constant temperature 1 hour, obtains suspension;
2) in above-mentioned suspension, the cetyl trimethylammonium bromide of kaolin 1. 5g is added, stirring at normal temperature 48 hours;
3) after filtration, deionized water wash, after drying, puts into vacuum drying oven Air drying, pulverizes the blended liquid after stirring by solid.
embodiment 5
1) joined in 250mL sesame seed cake by 10g kaolin, add the deionized water of 100mL, concentration is 10%(w/v), mechanical stirring, is heated to 70 DEG C, and constant temperature 1 hour, obtains suspension;
2) in above-mentioned suspension, the cetyl trimethylammonium bromide of kaolin 0. 8g is added, stirring at normal temperature 48 hours;
3) after filtration, deionized water wash, after drying, puts into vacuum drying oven Air drying, pulverizes the blended liquid after stirring by solid.
Claims (1)
1. with cetyl trimethylammonium bromide, intercalation and an organically-modified method are carried out to kaolin, it is characterized in that its step is as follows:
1) join in reactor by 10 mass parts kaolin, add 100 parts by volume deionized waters, mechanical stirring, be heated to 60 ~ 80 DEG C, constant temperature 0.5 ~ 1 hour, obtains suspension;
2) in suspension, add cetyl trimethylammonium bromide, cetyl trimethylammonium bromide and kaolinic mass ratio are 1:10 ~ 1:20, and stirring at normal temperature 24 ~ 48 hours, obtains blended liquid;
3) blended liquid after filtration, deionized water wash, after drying, puts into vacuum drying oven Air drying, pulverize;
Described kaolin is the massive ore being clay in natural output form or comparatively loosening; Described cetyl trimethylammonium bromide is the chemical reagent of AG.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310159864.3A CN103265827B (en) | 2013-05-03 | 2013-05-03 | Method for intercalating and organically modifying kaolin by cetyl trimethyl ammonium bromide |
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| CN201310159864.3A CN103265827B (en) | 2013-05-03 | 2013-05-03 | Method for intercalating and organically modifying kaolin by cetyl trimethyl ammonium bromide |
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| CN103265827B true CN103265827B (en) | 2015-07-15 |
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| CN107189496A (en) * | 2017-07-13 | 2017-09-22 | 长春工业大学 | A kind of modification illite preparation method for improving natural rubber performance |
| CN107324839A (en) * | 2017-07-28 | 2017-11-07 | 望江县太慈新型建材有限公司 | A kind of method for preparing resistance to compression common brick |
| CN108046919A (en) * | 2017-12-25 | 2018-05-18 | 芜湖晋诚农业科技有限公司 | A kind of composite fertilizer for improving peach quality |
| CN108706603B (en) * | 2018-05-29 | 2021-12-07 | 西北工业大学 | Nano calcium hydroxide/nano kaolin nano composite material and preparation method thereof |
| CN109607544A (en) * | 2018-12-27 | 2019-04-12 | 王子衿 | A kind of method of synthesizing flaky nano elementary silicon |
| CN114835970B (en) * | 2022-05-12 | 2023-03-24 | 浙江元通线缆制造有限公司 | Ceramic polyolefin cable material, preparation method thereof and application thereof in cable |
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| CN1528829A (en) * | 2003-09-29 | 2004-09-15 | 华东师范大学 | Method for preparing modified calcined superfine kaoline filler |
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