CN104944788B - A kind of full porcelain tooth porcelain glass dust and preparation method thereof - Google Patents
A kind of full porcelain tooth porcelain glass dust and preparation method thereof Download PDFInfo
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- CN104944788B CN104944788B CN201410131980.9A CN201410131980A CN104944788B CN 104944788 B CN104944788 B CN 104944788B CN 201410131980 A CN201410131980 A CN 201410131980A CN 104944788 B CN104944788 B CN 104944788B
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Abstract
The present invention provides a kind of full porcelain tooth porcelain glass dust and preparation method thereof, and the glass dust is made up of the component of following mass ratio：Y2O32~5%, SiO265~70%, Al2O310~16%, B2O312~20%, Li2O1~5%.Above material is sufficiently mixed uniformly, from room temperature to insulation after 650~700 DEG C 20 minutes, it is heated to 1350~1450 DEG C, insulation 120~180 minutes, raw material is set fully to be melt into liquid, with deionized water water quenching into glass particle, glass particle is milled to 3~5 μm, that is, obtains full porcelain tooth porcelain glass dust.Its feature of gained glass dust of the invention is to be free of K2O、Na2The compositions such as O, have the advantages that transparency is high, fracture resistance is good, acid resistance is good, and the softening point of glass dust is 570~600 DEG C, and 860~950 DEG C of temperature in use, thermal coefficient of expansion is 8.8~9.2 × 10‑6/ DEG C.
Description
Technical field
The present invention relates to a kind of full porcelain tooth porcelain glass dust and preparation method thereof, the glass dust prepared has transparency
It is high, the advantages of fracture resistance is good, acid resistance is good, is mainly used in dental all-ceramics and repairs field.
Technical background
Full porcelain tooth material since clinical practice, has been developed into folded from initial monolayer material since the last century the eighties
Layer composite, oxide ceramics is developed into from glass ceramics；Processing technology from porcelain, cast growth be CAD
With the precision cutting technique of processing.Present all-ceramic prosthesis has been provided with good marginal and preferable mechanical property
Can, it disclosure satisfy that the Dental Erosion requirement of the overwhelming majority.All-ceramic material is according to its outstanding aesthetic and good bio-compatible
Property and the extremely favor of oral restoration doctor and many patients, are increasingly becoming most popular dentistry repair materials attractive in appearance.
The main flow of All-ceramic material is lamination composite ceramics, i.e., be made up of substrate porcelain and decorations porcelain two parts, substrate porcelain makes complete
Hat meets the intensity requirement of dummy in porcelain, and good marginal, the decorations porcelain of outer layer are provided by appropriate process technology
Anatomic form and aesthetic to recover dummy.
The structure and mechanical property for adoring enamel coating directly affect the intensity of whole all-ceramic prosthesis.Physical chemistry between material
The matching of performance directly affects interface quality, is related to the stability and service life of all-ceramic prosthesis.
Full porcelain tooth glass dust is that a kind of white glass powder forms one layer thoroughly after plastic-coated is sintered on ceramic false tooth
Bright glass modification face.The vitreum is the outermost material of ceramic false tooth, and its main effect is that the ceramic tooth of modification is rough
Surface, protection dentin layer and adamantine layer；Ceramic tooth is set to show stereovision, more attractive access expansion tooth true to nature.Its performance is straight
The quality of the ceramic tooth of influence is connect, is to make the indispensable material of ceramic tooth.
K, Na content are high in the tooth modification glass frit component that artificial tooth factory of the country generally uses at present, cause glass dust
Chemical stability and acid resistance are poor, thus exploitation has the wide market space without K, Na low temperature glass facing glaze.
The content of the invention
The present invention is by using Y2O3Substitute K2O and Na2O provides a kind of full porcelain tooth porcelain glass dust and preparation method thereof.Should
Goal of the invention is to overcome the shortcomings of current product transparency is low, easily spring porcelain, acid resistance are poor.
The present invention is achieved through the following technical solutions：
The present invention provides a kind of full porcelain tooth porcelain glass dust, including SiO2、Al2O3、B2O3Etc. component, it is characterised in that glass
Glass powder also includes Y2O3Li2The fluxing components such as O, each component mass percentage content is：
It is an object of the invention to provide a kind of full porcelain tooth porcelain glass dust and preparation method thereof,
Comprise the following steps：
(1) calculate by mass percentage and weigh each raw material, prepare compound；
(2) by mixed material heating melting, its smelting technology is to be incubated 20 minutes from room temperature to after 650~700 DEG C, then
1350~1450 DEG C are heated to, 120~180 minutes are incubated, to ensure that each component is fully melted and reacted；
(3) glass metal obtained by step (2) is poured into water quenching in deionized water, it is small that glass metal forms glass by drastically cooling
Particle；
(4) 30 minutes are incubated at 100~150 DEG C, the frit after drying water quenching；
(5) the water quenching frit after drying is milled to the glass dust that particle diameter is 3~5 μm with planetary ball mill.
Y2O3Introducing, both improved the reactivity of raw material；The fracture resistance of vitreum is significantly increased again.Meanwhile, Y2O3
With obvious cooling function, K can be replaced2O and Na2O。K2O and Na2O has the performance of reduction firing temperature, but substantial amounts of
Addition can cause the reduction of glass dust acid resistance.Use Y2O3Replace K2O and Na2O, in the thermal coefficient of expansion and base of control vitreum
While bottom porcelain keeps matching, the acid resistance of glass dust can be obviously improved.
Li2O introducing can reduce the melting temperature, viscosity and thermal coefficient of expansion of glaze.At the same time it can also improve the resistance to of glass
Acid, wearability and glossiness.
The advantage of the invention is that：Add different content rare-earth oxidation yttrium, existing glass system is adjusted and
It is modified, make glass dust that there is preferable fracture resistance, have good matching with matrix material.Use Y2O3Substitute K2O and Na2O
Afterwards, it is obviously improved the acid resistance of vitreum.Have after the full porcelain tooth glass powder sintering of the present invention with all-ceramic prosthesis base material
Good matching and stability.The glass dust transparency is high, acid resistance is good, fracture resistance is good, sintering range is wide and system
Standby technique is simple, can be widely applied to the decorations porcelain field of full porcelain tooth, import substitutes.
Embodiment
Embodiment 1
(1) got the raw materials ready by following quality, progress is sufficiently mixed uniform：
(2) raw material for being well mixed step (1) is placed in the Cinker clew furnace of room temperature, is warming up to after 650 DEG C and is incubated 20 minutes,
1400 DEG C are again heated to, 120 minutes is incubated, raw material is fully melt into glass metal；
(3) glass metal obtained by step (2) is poured into water quenching in deionized water, it is small that glass metal forms glass by drastically cooling
Particle；
(4) 30 minutes are incubated at 100~150 DEG C, the frit after drying water quenching；
(5) glass that grain diameter is 3~5 μm is milled to after glass particle obtained by step (4) is filtered out with planetary ball mill
Powder, produces full porcelain tooth glass dust；
(6) softening point of the glass dust is 581 DEG C after tested, and thermal coefficient of expansion is 8.8 × 10-6/ DEG C.
Embodiment 2
(1) got the raw materials ready by following quality, progress is sufficiently mixed uniform：
(2) raw material for being well mixed step (1) is placed in room temperature Cinker clew furnace, is warming up to after 650 DEG C and is incubated 20 minutes, then
1420 DEG C are heated to, 120 minutes is incubated, raw material is fully melt into glass metal；
(3) glass metal obtained by step (2) is poured into water quenching in deionized water, it is small that glass metal forms glass by drastically cooling
Particle；
(4) 30 minutes are incubated at 100~150 DEG C, the frit after drying water quenching；
(5) glass that grain diameter is 3~5 μm is milled to after glass particle obtained by step (4) is filtered out with planetary ball mill
Powder, produces full porcelain tooth glass dust；
(6) softening point of the glass dust is 587 DEG C after tested, and thermal coefficient of expansion is 8.9 × 10-6/ DEG C.
Embodiment 3
(1) got the raw materials ready by following quality, progress is sufficiently mixed uniform：
(2) raw material for being well mixed step (1) is placed in room temperature Cinker clew furnace, is warming up to after 650 DEG C and is incubated 20 minutes, then
1450 DEG C are heated to, 150 minutes is incubated, raw material is fully melt into glass metal；
(3) glass metal obtained by step (2) is poured into water quenching in deionized water, it is small that glass metal forms glass by drastically cooling
Particle；
(4) 30 minutes are incubated at 100~150 DEG C, the frit after drying water quenching；
(5) glass that grain diameter is 3~5 μm is milled to after glass particle obtained by step (4) is filtered out with planetary ball mill
Powder, produces full porcelain tooth glass dust；
(6) softening point of the glass dust is 595 DEG C after tested, and thermal coefficient of expansion is 9.0 × 10-6/ DEG C.
Embodiment 4
(1) got the raw materials ready by following quality, progress is sufficiently mixed uniform：
(2) raw material for being well mixed step (1), is placed in room temperature Cinker clew furnace, is warming up to after 650 DEG C and is incubated 20 minutes,
1450 DEG C are being heated to, 180 minutes is being incubated, raw material is fully melt into glass metal；
(3) glass metal obtained by step (2) is poured into water quenching in deionized water, it is small that glass metal forms glass by drastically cooling
Particle；
(4) 30 minutes are incubated at 100~150 DEG C, the frit after drying water quenching；
(5) glass that grain diameter is 3~5 μm is milled to after glass particle obtained by step (4) is filtered out with planetary ball mill
Powder, produces full porcelain tooth glass dust；
(6) softening point of the glass dust is 578 DEG C after tested, and thermal coefficient of expansion is 9.1 × 10-6/ DEG C.
Examples detailed above is only one of implementation of the present invention, and the invention is not limited in above-mentioned specific embodiment, this area skill
Art personnel can also do numerous modifications and variations on the basis of existing technology, without departing from the spirit of the present invention, all in this hair
Bright scope of the claimed.
Claims (4)
1. a kind of full porcelain tooth porcelain glass dust, including SiO2、Al2O3、B2O3Etc. component, it is characterised in that glass dust is also included
Y2O3、Li2The fluxing components such as O, each component mass percentage content is：
2. a kind of full porcelain tooth porcelain glass dust according to claim 1, it is characterised in that described rare-earth oxidation yttrium is
Chemistry is pure.
3. a kind of full porcelain tooth porcelain glass dust according to claim 1, it is characterised in that described lithia is chemistry
It is pure.
4. the preparation technology of a kind of full porcelain tooth porcelain glass dust according to claim 1, it is characterised in that mainly include
Following steps：
(1) calculate by mass percentage and weigh each raw material, prepare compound；
(2) by mixed material heating melting, its smelting technology is, from room temperature to insulation after 650~700 DEG C 20 minutes, to reheat
To 1350~1450 DEG C, 120~180 minutes are incubated, to ensure that each component is fully melted and reacted；
(3) glass metal obtained by step (2) is poured into water quenching in deionized water, glass metal forms small of glass by drastically cooling
Grain；
(4) 30 minutes are incubated at 100~150 DEG C, the frit after drying water quenching；
(5) the water quenching frit after drying is milled to the glass dust that particle diameter is 3~5 μm with planetary ball mill.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410131980.9A CN104944788B (en) | 2014-03-30 | 2014-03-30 | A kind of full porcelain tooth porcelain glass dust and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410131980.9A CN104944788B (en) | 2014-03-30 | 2014-03-30 | A kind of full porcelain tooth porcelain glass dust and preparation method thereof |
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| CN104944788A CN104944788A (en) | 2015-09-30 |
| CN104944788B true CN104944788B (en) | 2017-09-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6342302B1 (en) * | 1998-11-13 | 2002-01-29 | Degussa Ag | Ceramic dental restoration |
| CN101094818A (en) * | 2004-05-29 | 2007-12-26 | 肖特股份公司 | Nano glass powder and use thereof, particularly multicomponent glass powder with a mean particle size of less than 1 [mu]m |
| WO2013053865A2 (en) * | 2011-10-14 | 2013-04-18 | Ivoclar Vivadent Ag | Lithium silicate glass ceramic and lithium silicate glass comprising a trivalent metal oxide |
-
2014
- 2014-03-30 CN CN201410131980.9A patent/CN104944788B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6342302B1 (en) * | 1998-11-13 | 2002-01-29 | Degussa Ag | Ceramic dental restoration |
| CN101094818A (en) * | 2004-05-29 | 2007-12-26 | 肖特股份公司 | Nano glass powder and use thereof, particularly multicomponent glass powder with a mean particle size of less than 1 [mu]m |
| WO2013053865A2 (en) * | 2011-10-14 | 2013-04-18 | Ivoclar Vivadent Ag | Lithium silicate glass ceramic and lithium silicate glass comprising a trivalent metal oxide |
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| CN104944788A (en) | 2015-09-30 |
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Inventor after: Ouyang Xueqiong, Wang Yadong, Hou Jinzhang, Guan Haibin, Pang Ruijun Inventor after: Wang Yadong Inventor after: Hou Jinzhang Inventor after: Guan Haibin Inventor after: Pang Ruijun Inventor before: Wang Yadong Inventor before: Hou Jinzhang Inventor before: Wang Yadong, Hou Jinzhang, Ouyang Xueqiong, Guan Haibin, Pang Ruijun Inventor before: Guan Haibin Inventor before: Pang Ruijun |
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