CN103936429A - Sintering aid for honeycomb porous ceramics - Google Patents
Sintering aid for honeycomb porous ceramics Download PDFInfo
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- CN103936429A CN103936429A CN201410120369.6A CN201410120369A CN103936429A CN 103936429 A CN103936429 A CN 103936429A CN 201410120369 A CN201410120369 A CN 201410120369A CN 103936429 A CN103936429 A CN 103936429A
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- porous ceramics
- honeycomb porous
- sintering aid
- sintering
- ceramics
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Abstract
The invention provides a sintering aid for honeycomb porous ceramics. The sintering aid is composed of the following components in percentage by weight: 0.1-0.8wt% of rare earth oxide, 0.1-1wt% of zirconium silicate, 0-1wt% of phosphotungstic acid, 0.2-1wt% of drying agent, 0-2wt% of aluminum oxide, 2-5wt% of binder and 5-10wt% of silicon oil. The sintering aid is simple in components and low in cost, and is capable of widening a material decomposition or volatilization temperature range of the honeycomb porous ceramics in drying and sintering processes, reducing shrinkage of the honeycomb porous ceramics and improving the compactness of the ceramics, and also advantageous for improving the yield of drying or sintering.
Description
Technical field
The present invention relates to Production of Ceramics preparation field, be specifically related to a kind of honeycomb porous ceramics adjuvant for combustion.
Background technology
Honeycomb porous ceramics is that a kind of structure is like the porous ceramics product of honeycomb shape, tool has been widely used, wherein the field of large usage quantity is purifying vehicle exhaust and desulphurization denitration catalyst support, if publication number is the Chinese patent of CN1457920, CN1413769, CN1401416, CN102424569A etc., the correlation technique of porous ceramics aspect is all disclosed.
Honeycomb porous ceramics during as various catalyst support or high temperature air filtration material, need to be tackled temperature and sharply change, and pottery occurs can not break, i.e. heat shock resistance power, and it weighs important parameter is the size of ceramic thermal expansivity and thermal conductivity.A lot of patents of invention propose to reduce honeycomb porous ceramics thermal expansivity and improve honeycomb porous ceramics thermal conductivity method, moulding process, formula, if publication number is the patents such as CN102424569A, CN102365119A, CN101374786, CN102249656A, CN102731106A, CN144778.Although above these patents are many, from formula angle, propose to reduce honeycomb porous ceramics thermal expansivity method, as use trichroite as ceramic principal crystalline phase, during forming process of ceramics, add powdered graphite or Vltra tears, or add wolframic acid zirconium in formula, triphane and silica powder, reach the object that reduces thermal expansivity, as Chinese patent CN102249656A, CN1903796, CN1785895 etc., but exist a lot of limitations as narrow in low thermal expansion temperature range, the thermal conductivity that actual process process lacks operability and the honeycomb porous ceramics series of problems such as be not significantly improved.
Therefore, must find a kind of new cordierite honeycomb porous ceramics preparation technology and preparation formula, obtain low-thermal-expansion in wide temperature range, high heat conductance nest pottery, its technical process and formula require simple, economic environmental protection and tool height operability.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of composition simple, the honeycomb porous ceramics adjuvant for combustion that result of use is good
Technical problem to be solved by this invention realizes by the following technical solutions:
A honeycomb porous ceramics adjuvant for combustion, described adjuvant for combustion is that the component by following mass percent forms:
Described binding agent is polyoxyethylene resin.
The invention has the beneficial effects as follows:
Beneficial effect of the present invention: component of the present invention is simple, with low cost, can make material decomposition or the volatilization temperature scope of honeycomb porous ceramics in dry, sintering process broaden, shrink and diminish and the raising of ceramic dense degree, be conducive to yield rate dry or that burn till and improve.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
A honeycomb porous ceramics adjuvant for combustion, described adjuvant for combustion is that the component by following weight forms:
Embodiment 2
A honeycomb porous ceramics adjuvant for combustion, described adjuvant for combustion is that the component by following mass percent forms:
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a honeycomb porous ceramics adjuvant for combustion, is characterized in that: described adjuvant for combustion is that the component by following mass percent forms:
2. a kind of honeycomb porous ceramics adjuvant for combustion according to claim 1, is characterized in that: described binding agent is polyoxyethylene resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120369.6A CN103936429B (en) | 2014-03-27 | 2014-03-27 | A kind of honeycomb porous ceramics adjuvant for combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410120369.6A CN103936429B (en) | 2014-03-27 | 2014-03-27 | A kind of honeycomb porous ceramics adjuvant for combustion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103936429A true CN103936429A (en) | 2014-07-23 |
| CN103936429B CN103936429B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410120369.6A Active CN103936429B (en) | 2014-03-27 | 2014-03-27 | A kind of honeycomb porous ceramics adjuvant for combustion |
Country Status (1)
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062868A (en) * | 2007-04-11 | 2007-10-31 | 南京工业大学 | Multi-phase functional ceramic honeycomb support and preparation method thereof |
| CN101734925A (en) * | 2009-12-04 | 2010-06-16 | 西安交通大学 | Silicon nitride porous ceramics with controllable porosity and preparation method thereof |
| US20110036080A1 (en) * | 2008-05-30 | 2011-02-17 | Douglas Munroe Beall | Low back pressure porous honeycomb and method |
| US20110111205A1 (en) * | 2009-11-09 | 2011-05-12 | Korea Institute Of Machinery & Materials | METHOD OF MANUFACTURING POROUS SINTERED REACTION-BONDED SILICON NITRIDE CERAMICS FROM GRANULAR Si MIXTURE POWDER AND POROUS SINTERED REACTION-BONDED SILICON NITRIDE CERAMICS MANUFACTURED THEREBY |
-
2014
- 2014-03-27 CN CN201410120369.6A patent/CN103936429B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062868A (en) * | 2007-04-11 | 2007-10-31 | 南京工业大学 | Multi-phase functional ceramic honeycomb support and preparation method thereof |
| US20110036080A1 (en) * | 2008-05-30 | 2011-02-17 | Douglas Munroe Beall | Low back pressure porous honeycomb and method |
| CN102046561A (en) * | 2008-05-30 | 2011-05-04 | 康宁股份有限公司 | Low back pressure porous honeycomb and method for producing the same |
| US20110111205A1 (en) * | 2009-11-09 | 2011-05-12 | Korea Institute Of Machinery & Materials | METHOD OF MANUFACTURING POROUS SINTERED REACTION-BONDED SILICON NITRIDE CERAMICS FROM GRANULAR Si MIXTURE POWDER AND POROUS SINTERED REACTION-BONDED SILICON NITRIDE CERAMICS MANUFACTURED THEREBY |
| CN101734925A (en) * | 2009-12-04 | 2010-06-16 | 西安交通大学 | Silicon nitride porous ceramics with controllable porosity and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103936429B (en) | 2015-08-05 |
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