CN103482637B - Preparation method of nanometer magnesia coated kaolin composite material - Google Patents
Preparation method of nanometer magnesia coated kaolin composite material Download PDFInfo
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- CN103482637B CN103482637B CN201310404273.8A CN201310404273A CN103482637B CN 103482637 B CN103482637 B CN 103482637B CN 201310404273 A CN201310404273 A CN 201310404273A CN 103482637 B CN103482637 B CN 103482637B
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- composite material
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- kaolin
- powder
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- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims abstract description 53
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 46
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 46
- 239000000395 magnesium oxide Substances 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000012153 distilled water Substances 0.000 claims abstract description 17
- 238000005406 washing Methods 0.000 claims abstract description 12
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 8
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 8
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 238000000498 ball milling Methods 0.000 claims description 10
- 238000007873 sieving Methods 0.000 claims description 7
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 239000010431 corundum Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 abstract description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 abstract 2
- 238000000227 grinding Methods 0.000 abstract 2
- 235000013877 carbamide Nutrition 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910001629 magnesium chloride Inorganic materials 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VYQNWZOUAUKGHI-UHFFFAOYSA-N monobenzone Chemical compound C1=CC(O)=CC=C1OCC1=CC=CC=C1 VYQNWZOUAUKGHI-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
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- Silicates, Zeolites, And Molecular Sieves (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a preparation method of a nanometer magnesia coated kaolin composite material. The preparation method comprises the following steps: (1), weighing the kaolin, grinding and screening, to obtain screened powders; (2), putting the powders into distilled water and putting sodium hexametaphosphate into the solution, carrying out ultrasonic dispersing, stirring and adding an MgCl2 solution, to form a uniform suspending solution; (3), heating the suspending solution to be 60-100 DEG C, stirring the suspending solution, and gradually dripping a CO(NH2)2 solution into the suspending solution until dripping off; (4), filtering the solution, washing filter residues by distilled water until no Cl<-> ion is existent in a washing liquid; and (5), drying the washed filter residues in a drying oven to obtain dry powders, and grinding the dry powders, so as to obtain the nanometer magnesia coated kaolin composite material. The composite material prepared by the preparation method has the advantages that the whiteness is as high as 90%, the index of refraction is high, and furthermore, the flame-retardant function of the composite material is enhanced.
Description
Technical field
The present invention relates to the preparation method of the coated kaolin composite material of a kind of nano magnesia, particularly relate to a kind of preparation method that can increase whiteness, increase refractive index, give the nanometer aluminum oxide clad kaoline composite material of kaoline fire-resistant function.
Background technology
Kaolin, also known as carclazyte or china clay, is the white pigment that paper-making industry is the most general, and resource is throughout world various places almost.For the kaolin of paper industry mainly for the production of worked copper millboard and coated manila, there is certain requirement to kaolinic whiteness, granularity, viscosity, refractive index etc.China's kaolin resource enriches, but high grade kaolinite is in that supply falls short of demand for a long time state.Compared with the country such as Britain, the U.S., still there is the inferior position that scale is less, output little, quality product is not high in kaolin enterprise of China.Therefore, carrying out modification to kaolin, improve its performance, improve kaolin quality, to meet different application requiring, is our work maximum at present.
Magnesium oxide has another name called magnesia alba, and burn magnesia, white powder, for industries such as rubber, plastics, electric wire, paint, glass, pottery, chemical reagent, medicine.Magnesium oxide has strong refraction in visible ray and near-ultraviolet range.One of magnesian main application is the use as fire retardant.
The combination of magnesium oxide and kaolin material can solve the defect that kaolin itself exists, but to be applied in application in kaolin material as coating material also fewer for application magnesium oxide at present; Now, although there is the appearance of the coated kaolin composite material of magnesium oxide, but due to preparation method and the technical qualification restriction of prior art, the coated kaolin composite material of its magnesium oxide is applied in paper industry to promote anti-flaming function and increase the advantages such as kaolin refractive index and gives prominence to not enough and stablize, and makes the application of this matrix material still there is significant limitation.
Summary of the invention
Technical problem to be solved by this invention is the defect overcoming prior art, the preparation method of the coated kaolin composite material of a kind of nano magnesia is provided, the whiteness of the coated kaolin composite material of the nano magnesia utilizing this preparation method to obtain compared with high, refractive index large, superior flame retardant property.
The technical solution adopted for the present invention to solve the technical problems is: the preparation method of the coated kaolin composite material of a kind of nano magnesia, comprises the following steps:
(1) take 60 ~ 160g kaolin, put into ball mill ball milling 30min, powder good for ball milling is sieved in 6250 mesh standard sieves, take the powder 30 ~ 80g after sieving;
(2) get 500mL distilled water and put into beaker, the powder weighed up is put into 500mL distilled water and taken 1 ~ 4g Sodium hexametaphosphate 99 and puts into solution, carry out ultrasonic disperse, in whipping process, add the MgCl of 100g/L in step (1)
2solution 30 ~ 100mL, forms uniform aaerosol solution;
(3) be heated to 60 ~ 100 DEG C by the beaker placement constant water bath box in step (2), with reinforcement electric mixer stirring suspension solution, rotating speed is 600 revs/min, measures the CO (NH of 300ml
2)
2solution, gradually CO (NH
2)
2solution is added drop-wise in aaerosol solution, until drip off;
(4) solution of step (3) is filtered, filter residue distilled water is washed, until no longer include Cl in washings
-till ion;
(5) filter residue after washing is placed in loft drier 300 ~ 400 DEG C of dry 6h and obtains dry powder, dry powder is placed in corundum mortar and grind 20min, obtain the coated kaolin composite material of nano magnesia.
Further, taking kaolin in described step (1) is 100g, and taking the kaolin powder after sieving is 50g.
Further, the Sodium hexametaphosphate 99 in described step (2) is 2g, MgCl
2solution is 50mL.
Further, the aaerosol solution Heating temperature in described step (3) is 80 DEG C.
Further, the filter residue and drying temperature in described step (5) is 360 DEG C.
In sum, the matrix material whiteness obtained by preparation method of the coated kaolin composite material of nano oxidized U.S. of the present invention is high, and whiteness is 90%; Refractive index is large; And improve the fire-retardant function of matrix material.Magnesium oxide and kaolin are prepared into matrix material, the anti-flaming function of enamelled paper and coated manila can be given, kaolin refractive index can be increased simultaneously, strengthen paper opaqueness.
Embodiment
By specific embodiment given below, the present invention can be had a clear understanding of further.
Embodiment 1
The preparation method of the coated kaolin composite material of a kind of nano magnesia that the present embodiment 1 describes, its preparation process is:
(1) take 100g kaolin, put into ball mill ball milling 30min, powder good for ball milling is sieved in 6250 mesh standard sieves, take the powder 50g after sieving;
(2) get the beaker that 500mL distilled water puts into 1000mL, the powder weighed up is put into 500mL distilled water and taken 2g Sodium hexametaphosphate 99 and puts into solution, carry out ultrasonic disperse, in whipping process, add the MgCl of 100g/L in step (1)
2solution 50mL, forms uniform aaerosol solution;
(3) be heated to 80 DEG C by the beaker placement constant water bath box in step (2), with reinforcement electric mixer stirring suspension solution, rotating speed is 600 revs/min, measures the CO (NH of 300ml
2)
2solution, gradually CO (NH
2)
2solution is added drop-wise in aaerosol solution, until drip off;
(4) solution of step (3) is filtered, filter residue distilled water is washed, until no longer include Cl in washings
-till ion;
(5) filter residue after washing is placed in loft drier 360 DEG C of dry 6h and obtains dry powder, dry powder is placed in corundum mortar and grind 20min, obtain the coated kaolin composite material of nano magnesia.
Embodiment 2
The preparation method of the coated kaolin composite material of a kind of nano magnesia of this embodiment 2, its preparation process is:
(1) take 60g kaolin, put into ball mill ball milling 30min, powder good for ball milling is sieved in 6250 mesh standard sieves, take the powder 30g after sieving;
(2) get 500mL distilled water and put into beaker, the powder weighed up is put into 500mL distilled water and taken 1g Sodium hexametaphosphate 99 and puts into solution, carry out ultrasonic disperse, in whipping process, add the MgCl of 100g/L in step (1)
2solution 30mL, forms uniform aaerosol solution;
(3) be heated to 60 DEG C by the beaker placement constant water bath box in step (2), with reinforcement electric mixer stirring suspension solution, rotating speed is 600 revs/min, measures the CO (NH of 300ml
2)
2solution, gradually CO (NH
2)
2solution is added drop-wise in aaerosol solution, until drip off;
(4) solution of step (3) is filtered, filter residue distilled water is washed, until no longer include Cl in washings
-till ion;
(5) filter residue after washing is placed in loft drier 300 DEG C of dry 6h and obtains dry powder, dry powder is placed in corundum mortar and grind 20min, obtain the coated kaolin composite material of nano magnesia.
Embodiment 3
The preparation method of the coated kaolin composite material of a kind of nano magnesia of this embodiment 3, its preparation process is:
(1) take 160g kaolin, put into ball mill ball milling 30min, powder good for ball milling is sieved in 6250 mesh standard sieves, take the powder 80g after sieving;
(2) get 500mL distilled water and put into beaker, the powder weighed up is put into 500mL distilled water and taken 4g Sodium hexametaphosphate 99 and puts into solution, carry out ultrasonic disperse, in whipping process, add the MgCl of 100g/L in step (1)
2solution 100mL, forms uniform aaerosol solution;
(3) be heated to 100 DEG C by the beaker placement constant water bath box in step (2), with reinforcement electric mixer stirring suspension solution, rotating speed is 600 revs/min, measures the CO (NH of 300ml
2)
2solution, gradually CO (NH
2)
2solution is added drop-wise in aaerosol solution, until drip off;
(4) solution of step (3) is filtered, filter residue distilled water is washed, until no longer include Cl in washings
-till ion;
(5) filter residue after washing is placed in loft drier 400 DEG C of dry 6h and obtains dry powder, dry powder is placed in corundum mortar and grind 20min, obtain the coated kaolin composite material of nano magnesia.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to technical scheme of the present invention.Every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical scheme of the present invention.
Claims (5)
1. a preparation method for the coated kaolin composite material of nano magnesia, is characterized in that, comprise the following steps:
(1) take 60 ~ 160g kaolin, put into ball mill ball milling 30min, powder good for ball milling is sieved in 6250 mesh standard sieves, take the powder 30 ~ 80g after sieving;
(2) get 500mL distilled water and put into beaker, the powder weighed up is put into 500mL distilled water and taken 1 ~ 4g Sodium hexametaphosphate 99 and puts into solution, carry out ultrasonic disperse, in whipping process, add the MgCl of 100g/L in step (1)
2solution 30 ~ 100mL, forms uniform aaerosol solution;
(3) be heated to 60 ~ 100 DEG C by the beaker placement constant water bath box in step (2), with reinforcement electric mixer stirring suspension solution, rotating speed is 600 revs/min, measures the CO (NH of 300ml
2)
2solution, gradually CO (NH
2)
2solution is added drop-wise in aaerosol solution, until drip off;
(4) solution of step (3) is filtered, filter residue distilled water is washed, until no longer include Cl in washings
-till ion;
(5) filter residue after washing is placed in loft drier 360 ~ 400 DEG C of dry 6h and obtains dry powder, dry powder is placed in corundum mortar and grind 20min, obtain the coated kaolin composite material of nano magnesia.
2. the preparation method of the coated kaolin composite material of a kind of nano magnesia according to claim 1, is characterized in that, taking kaolin in described step (1) is 100g, and taking the kaolin powder after sieving is 50g.
3. the preparation method of the coated kaolin composite material of a kind of nano magnesia according to claim 1, is characterized in that, the Sodium hexametaphosphate 99 in described step (2) is 2g, MgCl
2solution is 50mL.
4. the preparation method of the coated kaolin composite material of a kind of nano magnesia according to claim 1, is characterized in that, the aaerosol solution Heating temperature in described step (3) is 80 DEG C.
5. the preparation method of the coated kaolin composite material of a kind of nano magnesia according to claim 1, is characterized in that, the filter residue and drying temperature in described step (5) is 360 DEG C.
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| CN201310404273.8A CN103482637B (en) | 2013-09-09 | 2013-09-09 | Preparation method of nanometer magnesia coated kaolin composite material |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250337A (en) * | 2008-03-19 | 2008-08-27 | 中国高岭土公司 | Titania coating kaolinite compound powder and method for preparing same |
| 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 CN201310404273.8A patent/CN103482637B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250337A (en) * | 2008-03-19 | 2008-08-27 | 中国高岭土公司 | Titania coating kaolinite compound powder and method for preparing same |
| CN102786818A (en) * | 2012-06-29 | 2012-11-21 | 赵曰浩 | Method for whitening kaolin by using surface cladding method |
Non-Patent Citations (2)
| Title |
|---|
| 陈志军等.功能母料.《功能母料》.化学工业出版社,2007,第219-220页. * |
| 高岭土微粉与纳米TiO2表面复合改性研究;尹荔松;《中国粉体技术》;20010630;第7卷(第3期);第19-22页 * |
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Effective date of registration: 20181116 Address after: 529000 1006-1007, room 1001, room 72, port 1, Pengjiang District, Jiangmen, Guangdong. Patentee after: Guangdong Ke Jin Applied Technology Research Co., Ltd. Address before: 423000 15 Wuling square (male Times Square), Sun Yue Road, Beihu District, Chenzhou, Hunan. Patentee before: Hunan Sifang technology business incubator Ltd. |