CN103436055A - Preparation method of nanometer aluminum oxide clad kaoline composite material - Google Patents
Preparation method of nanometer aluminum oxide clad kaoline composite material Download PDFInfo
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- CN103436055A CN103436055A CN2013104042719A CN201310404271A CN103436055A CN 103436055 A CN103436055 A CN 103436055A CN 2013104042719 A CN2013104042719 A CN 2013104042719A CN 201310404271 A CN201310404271 A CN 201310404271A CN 103436055 A CN103436055 A CN 103436055A
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- aluminium oxide
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Abstract
The invention discloses a preparation method of a nanometer aluminum oxide clad kaoline composite material. The preparation method comprises the following steps of: (1) weighing 30-60 g of kaoline powder, weighing 1-4 g of sodium hexametaphosphate, adding 500 mL of distilled water solutions for ultrasonic dispersion, adding 30-100 mL of 100g/L Al2(SO4)3 solution, and stirring to form uniform suspending liquid; (2) heating the suspending liquid to 80-110 DEG C, stirring the suspending liquid, adding 1mol/L sulfuric acid and 1mol/L aqueous sodium hydroxide, and regulating the pH value of the solution to 4-6; (3) filtering the solution, and washing filter residues till no SO4<2-> ion is contained in a washing liquid; (4) placing the washed filter residues into a drying box at 100-200 DEG C, and drying for 5 hours to obtain dry powder; grinding the dry powder for 20 minutes to obtain the nanometer aluminum oxide clad kaoline composite material. The nanometer aluminum oxide clad kaoline composite material obtained by utilizing the method disclosed by the invention has the advantages of good mechanical property and high stability in chemical property.
Description
Technical field
The present invention relates to the preparation method that a kind of nano aluminium oxide coats kaolin composite material, relate in particular to the preparation method that a kind of nano aluminium oxide that can improve the mechanical property of materials and chemical stability coats kaolin composite material.
Background technology
China finds the earliest in the world and utilizes kaolinic country, and type is complete, and reserves are abundant, and total resources is positioned at prostatitis, the world.Kaolin is a kind of of clay, because of its special structure and performance, is widely used in the fields such as papermaking, rubber, pottery.But because the mechanical propertys such as its tensile property are bad, the not high range of application that makes of chemical stability has limitation.
A series of premium propertiess such as aluminum oxide has multiple crystalline structure, and it is high that alumina-ceramic has physical strength, and insulation resistance is large, and hardness is high, wear-resisting, corrosion-resistant and high temperature resistant, its purposes is very extensive: can be used for cutting tool, bull ring, mould; Being desirable ic substrate material etc., is the widest, the maximum ceramic new material of volume of production and marketing of purposes.Aluminum oxide is as coating material, the substrate modified mechanical property, and chemical property, resistances to elevated temperatures etc. are widely used.
Aluminum oxide and kaolin material in conjunction with the defect that can solve kaolin itself and exist, still, apply at present aluminum oxide as coating material be applied on kaolin material, apply also fewer; Now, although the appearance of alumina-coated kaolin composite material is arranged, but, due to preparation method and the technical qualification restriction of prior art, the mechanical property of its alumina-coated kaolin composite material and chemical stability are still not strong, make the application of this material still exist significant limitation.
Summary of the invention
Technical problem to be solved by this invention is the defect that overcomes prior art, provide a kind of nano aluminium oxide to coat the preparation method of kaolin composite material, the nano aluminium oxide that utilizes this preparation method to make coats the good mechanical property of kaolin composite material, and chemical stability also obtains certain raising.
The technical solution adopted for the present invention to solve the technical problems is: a kind of nano aluminium oxide coats the preparation method of kaolin composite material, comprises the following steps:
(1) 500mL distilled water is placed in to beaker, the kaolin powder that takes 30 ~ 60g joins in the 500mL distilled water solution with the Sodium hexametaphosphate 99 that takes 1 ~ 4g, carries out ultrasonic dispersion stirring, adds the Al of 100g/L during stirring
2(SO
4)
3solution 30～100mL, form uniform suspension;
(2) beaker is placed in thermostat water bath and is heated to 80 ~ 110 ℃, stirred suspension, stirring velocity is 1000 rev/mins, adds the dilute sodium hydroxide of the sulfuric acid of 1mol/L and 1mol/L and adjusts pH to 4～6, stirs 30min;
(3) solution is filtered, used the distilled water wash filter residue, wash to washings and there is no SO
4 2-ion;
(4) filter residue washed is placed in to the dry 5h of loft drier of 100～200 ℃ and obtains dry powder, dry powder is placed in to the corundum mortar and grinds 20min, obtain nano aluminium oxide and coat kaolin composite material.
Further, the kaolin powder in described step (1) is 50g, and Sodium hexametaphosphate 99 is 2g, Al
2(SO
4)
3solution is 50mL.
Further, the solution Heating temperature in described step (2) is 90 ℃, adjusts pH not 5.5.
Further, the filter residue and drying temperature in described step (4) is 180 ℃.
In sum, the prepared matrix material machinery of the preparation method performance of nano aluminium oxide coating kaolin composite material of the present invention is good, stable chemical performance is strong.Because pure kaolinic plasticity-is good, but its resistance to impact shock and tensile strength are bad, and aluminum oxide has that intensity is high, wear resisting property good, and nano aluminium oxide coats kaolinic combination just can improve the mechanical property of material.In addition, kaolin has strong acid resistance, but its alkaline resistance properties is poor, and aluminum oxide has good chemical stability, corrosion resistance and good, thereby coated also certain raising of chemical stability of the kaolin composite material of nano aluminium oxide.
Embodiment
By specific embodiment given below, can further have a clear understanding of the present invention.
Embodiment 1
A kind of nano aluminium oxide that the present embodiment 1 is described coats the preparation method of kaolin composite material, and its preparation process is as follows:
(1) 500mL distilled water is placed in to the 1000mL beaker, the kaolin powder that takes 50g joins in the 500mL distilled water solution with the Sodium hexametaphosphate 99 that takes 2g, carries out ultrasonic dispersion stirring, adds the Al of 100g/L during stirring
2(SO
4)
3solution 50mL, form uniform suspension;
(2) beaker is placed in thermostat water bath and is heated to 90 ℃, stirred suspension, stirring velocity is 1000 rev/mins, adds the dilute sodium hydroxide of the sulfuric acid of 1mol/L and 1mol/L and adjusts pH to 5.5, stirs 30min;
(3) solution is filtered, used the distilled water wash filter residue, wash to washings and there is no SO
4 2-ion;
(4) filter residue washed is placed in to the dry 5h of loft drier of 180 ℃ and obtains dry powder, dry powder is placed in to the corundum mortar and grinds 20min, obtain nano aluminium oxide and coat kaolin composite material.
Embodiment 2
A kind of nano aluminium oxide of this embodiment 2 coats the preparation method of kaolin composite material, and its preparation process is:
(1) 500mL distilled water is placed in to the 1000mL beaker, the kaolin powder that takes 30g joins in the 500mL distilled water solution with the Sodium hexametaphosphate 99 that takes 1g, carries out ultrasonic dispersion stirring, adds the Al of 100g/L during stirring
2(SO
4)
3solution 30mL, form uniform suspension;
(2) beaker is placed in thermostat water bath and is heated to 80 ℃, stirred suspension, stirring velocity is 1000 rev/mins, adds the dilute sodium hydroxide of the sulfuric acid of 1mol/L and 1mol/L and adjusts pH to 4, stirs 30min;
(3) solution is filtered, used the distilled water wash filter residue, wash to washings and there is no SO
4 2-ion;
(4) filter residue washed is placed in to the dry 5h of loft drier of 100 ℃ and obtains dry powder, dry powder is placed in to the corundum mortar and grinds 20min, obtain nano aluminium oxide and coat kaolin composite material.
Embodiment 3
A kind of nano aluminium oxide of this embodiment 3 coats the preparation method of kaolin composite material, the steps include:
(1) 500mL distilled water is placed in to the 1000mL beaker, the kaolin powder that takes 60g joins in the 500mL distilled water solution with the Sodium hexametaphosphate 99 that takes 4g, carries out ultrasonic dispersion stirring, adds the Al of 100g/L during stirring
2(SO
4)
3solution 100mL, form uniform suspension;
(2) beaker is placed in thermostat water bath and is heated to 110 ℃, stirred suspension, stirring velocity is 1000 rev/mins, adds the dilute sodium hydroxide of the sulfuric acid of 1mol/L and 1mol/L and adjusts pH to 6, stirs 30min;
(3) solution is filtered, used the distilled water wash filter residue, wash to washings and there is no SO
4 2-ion;
(4) filter residue washed is placed in to the dry 5h of loft drier of 200 ℃ and obtains dry powder, dry powder is placed in to the corundum mortar and grinds 20min, obtain nano aluminium oxide and coat kaolin composite material.
The above, be only preferred embodiment of the present invention, not technical scheme of the present invention done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical scheme of the present invention.
Claims (4)
1. the preparation method of a nano aluminium oxide coating kaolin composite material, is characterized in that, comprises the following steps:
(1) 500mL distilled water is placed in to beaker, the kaolin powder that takes 30 ~ 60g joins in the 500mL distilled water solution with the Sodium hexametaphosphate 99 that takes 1 ~ 4g, carries out ultrasonic dispersion stirring, adds the Al of 100g/L during stirring
2(SO
4)
3solution 30～100mL, form uniform suspension;
(2) beaker is placed in thermostat water bath and is heated to 80 ~ 110 ℃, stirred suspension, stirring velocity is 1000 rev/mins, adds the dilute sodium hydroxide of the sulfuric acid of 1mol/L and 1mol/L and adjusts pH to 4～6, stirs 30min;
(3) solution is filtered, used the distilled water wash filter residue, wash to washings and there is no SO
4 2-ion;
(4) filter residue washed is placed in to the dry 5h of loft drier of 100～200 ℃ and obtains dry powder, dry powder is placed in to the corundum mortar and grinds 20min, obtain nano aluminium oxide and coat kaolin composite material.
2. a kind of nano aluminium oxide according to claim 1 coats the preparation method of kaolin composite material, it is characterized in that, the kaolin powder in described step (1) is 50g, and Sodium hexametaphosphate 99 is 2g, Al
2(SO
4)
3solution is 50mL.
3. a kind of nano aluminium oxide according to claim 1 coats the preparation method of kaolin composite material, it is characterized in that, the solution Heating temperature in described step (2) is 90 ℃, adjusts pH not 5.5.
4. a kind of nano aluminium oxide according to claim 1 coats the preparation method of kaolin composite material, it is characterized in that, the filter residue and drying temperature in described step (4) is 180 ℃.
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| CN2013104042719A CN103436055A (en) | 2013-09-09 | 2013-09-09 | Preparation method of nanometer aluminum oxide clad kaoline composite material |
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|---|---|---|---|
| CN2013104042719A CN103436055A (en) | 2013-09-09 | 2013-09-09 | Preparation method of nanometer aluminum oxide clad kaoline composite material |
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ID=49689779
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295451A (en) * | 2015-11-30 | 2016-02-03 | 成都乐氏化工工程有限公司 | Preparation method for nanometer aluminium oxide composite |
| CN105315724A (en) * | 2015-11-30 | 2016-02-10 | 成都乐氏化工工程有限公司 | Nanometer aluminum oxide composite material |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3151993A (en) * | 1960-03-31 | 1964-10-06 | Georgia Kaolin Co | Planographic inks containing aluminum hydroxide coated kaolinite particles |
| US5624488A (en) * | 1995-06-30 | 1997-04-29 | Engelhard Corporation | Ultrahigh brightness calcined clay pigment, manufacture & use thereof |
| CN1454939A (en) * | 2003-05-29 | 2003-11-12 | 中国科学院山西煤炭化学研究所 | Method of preparing nano titanium dioxide granule with surface coated of aluminium oxide |
| CN101434758A (en) * | 2007-11-16 | 2009-05-20 | 毛健 | Processing method of high performance composite titanium dioxide pigment |
| CN101463195A (en) * | 2007-12-21 | 2009-06-24 | 衡阳天友化工有限公司 | Rutile type titanium dioxide coating method and preparation method of used reagent |
| CN101880492A (en) * | 2010-07-14 | 2010-11-10 | 无锡豪普钛业有限公司 | Titanium dioxide pigment for ink and preparation method thereof |
| US20120132108A1 (en) * | 2009-08-07 | 2012-05-31 | Jgc Catalysts And Chemicals Ltd. | Dispersion Liquid of Core-Shell Type Composite Oxide Fine Particles, Process for Producing the Dispersion Liquid, and Coating Composition Containing the Fine Particles |
| CN102786818A (en) * | 2012-06-29 | 2012-11-21 | 赵曰浩 | Method for whitening kaolin by using surface cladding method |
-
2013
- 2013-09-09 CN CN2013104042719A patent/CN103436055A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3151993A (en) * | 1960-03-31 | 1964-10-06 | Georgia Kaolin Co | Planographic inks containing aluminum hydroxide coated kaolinite particles |
| US5624488A (en) * | 1995-06-30 | 1997-04-29 | Engelhard Corporation | Ultrahigh brightness calcined clay pigment, manufacture & use thereof |
| CN1454939A (en) * | 2003-05-29 | 2003-11-12 | 中国科学院山西煤炭化学研究所 | Method of preparing nano titanium dioxide granule with surface coated of aluminium oxide |
| CN101434758A (en) * | 2007-11-16 | 2009-05-20 | 毛健 | Processing method of high performance composite titanium dioxide pigment |
| CN101463195A (en) * | 2007-12-21 | 2009-06-24 | 衡阳天友化工有限公司 | Rutile type titanium dioxide coating method and preparation method of used reagent |
| US20120132108A1 (en) * | 2009-08-07 | 2012-05-31 | Jgc Catalysts And Chemicals Ltd. | Dispersion Liquid of Core-Shell Type Composite Oxide Fine Particles, Process for Producing the Dispersion Liquid, and Coating Composition Containing the Fine Particles |
| CN101880492A (en) * | 2010-07-14 | 2010-11-10 | 无锡豪普钛业有限公司 | Titanium dioxide pigment for ink and preparation method thereof |
| CN102786818A (en) * | 2012-06-29 | 2012-11-21 | 赵曰浩 | Method for whitening kaolin by using surface cladding method |
Non-Patent Citations (1)
| Title |
|---|
| 王绪海等: "高岭土表面改性研究进展", 《化工矿物与加工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295451A (en) * | 2015-11-30 | 2016-02-03 | 成都乐氏化工工程有限公司 | Preparation method for nanometer aluminium oxide composite |
| CN105315724A (en) * | 2015-11-30 | 2016-02-10 | 成都乐氏化工工程有限公司 | Nanometer aluminum oxide composite material |
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Application publication date: 20131211 |