CN102010129A - Method for preparing porous glass ceramic bracket - Google Patents
Method for preparing porous glass ceramic bracket Download PDFInfo
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- CN102010129A CN102010129A CN2010101995841A CN201010199584A CN102010129A CN 102010129 A CN102010129 A CN 102010129A CN 2010101995841 A CN2010101995841 A CN 2010101995841A CN 201010199584 A CN201010199584 A CN 201010199584A CN 102010129 A CN102010129 A CN 102010129A
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- sponge
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Abstract
The invention relates to the technical field of glass ceramics, in particular to a method for preparing a porous glass ceramic bracket, which comprises the steps of: mixing glass powder and water uniformly by mass ratio of 1:1.5 to make slurry; then soaking polyurethane sponge in the slurry; squeezing the slurry repeatedly to fill all pores of the sponge adequately; squeezing residual slurry at pressure of 10-15KPa so that a small amount of slurry is adhered uniformly to the framework of the sponge; and drying at 45 DEG C and finally calcining in a muffle furnace at 900 DEG C to remove the polyurethane sponge to make the porous bracket. Compared with the prior art, the invention has simple process flow and low manufacturing cost. The porous bracket prepared by the method is similar in structure with the sponge and has high porosity, uniform porous distribution, good porous communication and high strength of the bracket.
Description
[technical field]
The present invention relates to the glass-ceramic technical field, specifically is a kind of preparation method of porous glass ceramics support.
[background technology]
The method for preparing porous support mainly contains pore-forming material dry pressing, foaming and foam impregnation method.The porous support intensity of dry pressing preparation is higher, but porosity is lower, and the hole is connective poor, is difficult to satisfy the requirement of organizational project to supporting structure.The brace aperture rate height of foaming preparation, but the hole connectedness is relatively poor, and also hole size is difficult to control.The foam impregnation method is a kind of novel method for preparing porous ceramics, adopts the porous ceramics porosity height of this method preparation, and the hole connectedness is good, and pore size can be controlled according to the organic masterplate that adopts, but support intensity is lower.
[summary of the invention]
The objective of the invention is to overcome the deficiencies in the prior art, the preparation method of a kind of void content height, the uniform porous glass ceramics support of pore distribution is provided.
For achieving the above object, design a kind of preparation method of porous glass ceramics support, it is characterized in that its processing step is: glass powder and water mix according to 1: 1.5 mass ratio and make slurry, then the polyurethane sponge is dipped in the slurry, extruding makes all holes of the abundant filling sponge of slurry repeatedly, under the pressure of 10-15KPa, extrude unnecessary slurry, a small amount of slurry is sticked on the skeleton of sponge uniformly, 45 ℃ of dryings, the polyurethane sponge is removed in 900 ℃ of calcinings in retort furnace at last, makes porous support.
Its component of described glass powder and mass percentage content are: lutecium oxide 15%～55%, zirconium white 45%～85%; The crystalline size of the superfine powder of described high-quality nanometer lutetium zircon ceramic is 5 nanometers～15 nanometers.
The present invention compared with prior art, technical process is simple, low cost of manufacture, the preparation of this method porous support have with sponge kind like structure, the void content height, pore distribution is even, the hole connectedness is good, and the support intensity height.
[embodiment]
The invention will be further described below in conjunction with embodiment.Production technology of the present invention is to implement easily to this professional people.
Processing step is: glass powder and water mix according to 1: 1.5 mass ratio and make slurry, then the polyurethane sponge is dipped in the slurry, extruding makes all holes of the abundant filling sponge of slurry repeatedly, under the pressure of 10-15KPa, extrude unnecessary slurry, a small amount of slurry is sticked on the skeleton of sponge uniformly, 45 ℃ of dryings, the polyurethane sponge is removed in 900 ℃ of calcinings in retort furnace at last, makes porous support.
Its component of described glass powder and mass percentage content are: lutecium oxide 15%～55%, zirconium white 45%～85%; The crystalline size of the superfine powder of described high-quality nanometer lutetium zircon ceramic is 5 nanometers～15 nanometers.
Described glass powder manufacturing process:
Step 1 is dissolved in the water zirconium oxychloride in the test tank of polypropylene material, is heated to 60 ℃～80 ℃ then, adds lutecium oxide subsequently, dissolves fully up to lutecium oxide, adds urea again, stirs, and dissolves fully up to urea;
Step 2 joins the solution in the step 1 in the enamel reaction ax by a PVC plastic conduit, and design pressure is 1Mpa, and design temperature is 150 ℃, adds acrylate again, carries out the hydrothermal deposition reaction, obtains Zr (OH)
4And Lu (OH)
3Colloid mixture;
Step 3, reaction is finished the back and is taken out colloid, and by supercentrifuge, with the speed washing of 16000 rev/mins of rotating speeds, repetitive scrubbing 3-5 time is up to using the detection of 1mol/l silver nitrate solution, till the no chlorion.
Step 4 is squeezed into the colloid mashed prod in the step 3 in the spray drying device by surge pump, carries out drying, and moisture is dried fully in powder.
Step 5 moves into the powder of drying in the step 4 in the duct type rotation calcining furnace, and powder is tiled on the tube wall of silica glass at certain angle of inclination.The reunion that reduces powder that like this can minimum degree.Calcining temperature is between 600 ℃-800 ℃.
Step 6 is mixed with 1: 1 blending ratio the powder after the calcining with pure water, and adds dispersion agent Macrogol 2000 0.Carried out ball milling 2-3 hour with high speed ball mill.
Step 9 is sent into the slurry behind the ball milling and is carried out granulation in the sponging granulator, and inlet temperature is between 200-250 ℃, and the discharge port temperature is between 100-150 ℃.
Claims (2)
1. the preparation method of a porous glass ceramics support is characterized in that its processing step is: take by weighing a certain amount of glass powder, to press 1: 1.5 mixed of mass ratio even with adjusting slurry, splashes into (NH then
4)
2S
2O
8Solution as initiator and MABM solution as catalyzer and mix, the slurry that modulates carries out hanging according to previously described hanging method, slurry temperature remains in 20 ℃, the support that hangs up properly slurry is 60 ℃ of dryings, in the exsiccant process, acrylamide monomer carries out polyreaction and forms polyacrylamide under the thermal initiation effect, glass powder is aggregated the thing bonding and is fixed on the sponge skeleton, then that drying is good biscuit is dipped in the colloidal sol and fully soaks into, take out the back unnecessary colloidal sol of filter paper sucking-off, the surface of the biscuit skeleton after soaking has formed one deck dissolved glue film, and unnecessary colloidal sol is sucked out in the hole, guaranteed the connectedness in hole, support after the processing is 40 ℃ of dryings, because high surface-area and low drying temperature, the dissolved glue film on skeleton surface can not ftracture in drying process substantially, dried skeleton surface is just covered by one deck xerogel film, the biscuit for preparing is calcined the organic constituent of removing in the support in retort furnace, 1200 ℃ of calcinings make the glass-ceramic support, temperature rise rate is 1 ℃/min in the calcination process, is incubated 1h respectively at 900 ℃ and 1200 ℃.
2. the preparation method of a kind of glass-ceramic according to claim 1 is characterized in that its component of described glass powder and mass percentage content are: lutecium oxide 15%～55%, zirconium white 45%～85%; The crystalline size of the superfine powder of described high-quality nanometer lutetium zircon ceramic is 5 nanometers～15 nanometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101995841A CN102010129A (en) | 2010-06-11 | 2010-06-11 | Method for preparing porous glass ceramic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101995841A CN102010129A (en) | 2010-06-11 | 2010-06-11 | Method for preparing porous glass ceramic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102010129A true CN102010129A (en) | 2011-04-13 |
Family
ID=43840488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101995841A Pending CN102010129A (en) | 2010-06-11 | 2010-06-11 | Method for preparing porous glass ceramic bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102010129A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106674830A (en) * | 2015-11-11 | 2017-05-17 | 重庆润泽医药有限公司 | Porous non-metallic material |
-
2010
- 2010-06-11 CN CN2010101995841A patent/CN102010129A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106674830A (en) * | 2015-11-11 | 2017-05-17 | 重庆润泽医药有限公司 | Porous non-metallic material |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110413 |