CN102875174A - Production method of novel ceramic fiber water-repellent blanket - Google Patents
Production method of novel ceramic fiber water-repellent blanket Download PDFInfo
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- CN102875174A CN102875174A CN2012104029866A CN201210402986A CN102875174A CN 102875174 A CN102875174 A CN 102875174A CN 2012104029866 A CN2012104029866 A CN 2012104029866A CN 201210402986 A CN201210402986 A CN 201210402986A CN 102875174 A CN102875174 A CN 102875174A
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Abstract
The invention relates to a production method of a novel ceramic fiber water-repellent blanket and belongs to the technical field of heat-insulation fireproof materials. The production method is characterized by including steps of production of a novel ceramic fiber heat-insulation blanket and utilization of novel high-temperature nano water-repellent materials and water-repellent materials. The novel ceramic fiber heat-insulation blanket is used as main materials, the solvent type high-temperature nano water-repellent materials are used as surface treating agent, and combined silicane coupling agent is used as 'molecular bridge' or 'binder' of the fibers and high-temperature water-repellent materials. The ceramic fiber water-repellent blanket has excellent water repellence, the problem of water absorption of the heat-insulation layer on the poor conditions of water molecules in the air and external protection of pipelines is avoided, heat insulation performance of fibers is greatly improved, the problem that a heat insulation body is corroded is solved, water repellence of the fiber blanket is realized, and the problem that the heat insulation body is corroded due to the fact that heat conduction coefficient of a conventional fiber blanket absorbing moisture is decreased is solved.
Description
Technical field
The present invention relates to a kind of production method of new ceramics fiber hydrophobic blanket, belong to the heat insulating technical field of refractory materials.
Background technology
The defectives such as the suction that conventional ceramic fiber blanket exists, the moisture absorption, yet surrounding the most heat insulation refractory materials, to have these defectives be very fatal, quality and the work-ing life of product have been had a strong impact on, this just requires us to process by special process on the basis of conventional fibre blanket, realized the good hydrophobicity performance of tapetum fibrosum, fundamentally having changed the thermal conductivity that causes after the suction, the moisture absorption of conventional fibre blanket increases, heat insulation effect reduces, to the defective of thermal insulator corrosion aggravation, so that product reaches suction, the moisture absorption phenomenon that has effectively overcome goods.
Corrosion reaction be unable to do without moisture, thus the lagging material that require to use to possess water content minimum, the fastest dry characteristics.One of salient features of estimating lagging material is its water-absorbent (water absorbability), and its thermal conductivity increases after the lagging material suction, and the lagging material of imbibition moisture can soak equipment surface, causes the equipment surface corrosion.
In the use procedure of this series products, also to stand under the high-temperature condition, reach 600 ℃ in use temperature in some cases, and these conventional rock wools, glass wool, complex silicate salt product are added organic bond, and use temperature is above 200 ℃, organic bond and hydrophober begin volatilization, the long-time use, the meeting degradation failure causes product to be unable to bear high temperature.
Summary of the invention
According to the deficiencies in the prior art, the technical problem to be solved in the present invention is: the production method that a kind of new ceramics fiber hydrophobic blanket is provided, the thermal conductivity that causes after the suction of solution conventional fibre blanket, the moisture absorption increases, and heat insulation effect reduces, and has effectively overcome suction, the moisture absorption phenomenon of goods.
The technical solution adopted for the present invention to solve the technical problems is: the production method that a kind of new ceramics fiber hydrophobic blanket is provided, it is characterized in that producing and comprise following step: the use of the production of new ceramics fiber thermal insulation blanket, new type high temperature nano hydrophobic material and hydrophobic material is described below:
(1) production of new ceramics fiber thermal insulation blanket
1. wear into fine powder material to 325 order after the flint clay grogs such as required feed coal spoil or flint clay being mixed, form the fine grinding compound;
2. in the fine grinding compound, add additive, stir;
3. the final compound of rear formation stirs;
4. this compound is evenly spread in the resistance furnace, melt or melting;
5. the fused solution instantaneous cooling of fusing is made fiber;
6. fiber is through the calcining furnace calcining;
(2) new type high temperature nano hydrophobic material preparation and use
1. tensio-active agent, be mixed with new type high temperature nano hydrophobic material in conjunction with coupling agent and hydrophober;
2. with the above-mentioned fiber made through gaseous phase deposition stove new type high temperature nano hydrophobic material by high pressure permeability or deposit on the every fiber, so that every fiber all has hydrophobic or hydrophobic effect.
Described production method is as follows:
(1) production of new ceramics fiber thermal insulation blanket
1. contain the silicon-dioxide that weight forms 40 ~ 65 parts in the component of new ceramics fiber thermal insulation blanket, weight forms 20 ~ 50 parts aluminum oxide, and calcium oxide or weight that the weight composition is 10 ~ 20 parts form 10 ~ 20 parts magnesium oxide;
2. the one-tenth method for fiber of new ceramics fiber thermal insulation blanket is characterized in that adopting winding-up or centrifugal drying silk technique;
3. the production of new ceramics fiber thermal insulation blanket is characterized in that original melt temperature is at 1100 ~ 1700 ℃;
4. the production of new ceramics fiber thermal insulation blanket, the fibroblast temperature that it is characterized in that raw material is 800 ~ 1100 ℃;
(2) new type high temperature nano hydrophobic material preparation and use
The component of new type high temperature nano hydrophobic material is tensio-active agent, be 10 ~ 20:0.1 ~ 1:70 ~ 90 in conjunction with coupling agent and hydrophober ratio;
The new type high temperature nano hydrophobic material that makes is solvent type, and tensio-active agent is such as alcohol, Virahol or containing hydrogen silicone oil;
Be so that hydrophober is easy to be attached on the fiber with the form of bridging in conjunction with coupling agent, comprise silane coupling agent or titanate coupling agent;
With the above-mentioned fiber made through gaseous phase deposition stove new type high temperature nano hydrophobic material by high pressure permeability or deposit on the every fiber, so that every fiber all has hydrophobic or hydrophobic effect.
Described new type high temperature nano hydrophobic material preparation adopts high temperature hydrophobic nanometre material, adds in conjunction with coupling agent.
The use of described new type high temperature nano hydrophobic material is to utilize gaseous phase deposition stove, adopts the method for high pressure permeability.
The use of described new type high temperature nano hydrophobic material is by atomizing, and high-pressure blast penetrates, and makes the hydrophobic molecule evenly be attached to the surface of every fiber, and the surface tension of increase tapetum fibrosum forms preferably hydrophobic barrier film.
It is main raw material that the present invention adopts new ceramics fiber thermal insulation blanket, and next adopts solvent type high-temperature nano hydrophobic material as surface treatment agent, uses in conjunction with " molecular bridge " or " binding agent " of silane coupling agent as fiber and high temperature hydrophobic material.
The invention has the beneficial effects as follows:
1, behind the oxide compound of interpolation calcium or magnesium, the raw materials melt temperature is low, and viscosity is little, and melt is fit to the temperature range large (800 ~ 1100 ℃) of fibroblast, and fibroblast is easy, and output is large, and fiber productivity is high, and the slag ball is few, and fiber quality is more stable;
2, hydrophobicity performance keeps temperature higher: the hydrophobic fiber blanket is because special process has guaranteed that product can use (above 600 ℃) under comparatively high temps, and hydrophobicity performance does not descend under the assurance high-temperature behavior;
3, heat-insulating property is more superior: very thin fiber, and fluffy structure forms air void more even, and heat-insulating property is better;
4, prevent that equipment and pipeline (such as compressed air line, water pipe, oil pipe etc.) from freezing or bursting by freezing.Especially the use of hydrophobic fiber blanket, the infiltration that more can stop extraneous water was lost efficacy thermal insulation layer, caused pipeline freezing.
Embodiment
Below in conjunction with embodiment the present invention is described further:
Preparation technology of the present invention is as follows:
(1) production of new ceramics fiber thermal insulation blanket
1. wear into fine powder material to 325 order after the flint clay grogs such as required feed coal spoil or flint clay being mixed, form the fine grinding compound;
2. in the fine grinding compound, add additive, stir;
3. the final compound of rear formation stirs;
4. this compound is evenly spread in the resistance furnace, melt or melting;
5. the fused solution instantaneous cooling of fusing is made fiber;
6. fiber is through the calcining furnace calcining;
(2) new type high temperature nano hydrophobic material preparation and use
1. tensio-active agent, be mixed with new type high temperature nano hydrophobic material in conjunction with coupling agent and hydrophober;
2. with the above-mentioned fiber made through gaseous phase deposition stove new type high temperature nano hydrophobic material by high pressure permeability or deposit on the every fiber, so that every fiber all has hydrophobic or hydrophobic effect.
Embodiment 1
Natural hard chamotte add-on is 70wt.%, and the quartz sand add-on is 10wt.%, caustic-calcined magnesite 20%,
The one-tenth method for fiber of new ceramics fiber thermal insulation blanket adopts blowing process;
The production of new ceramics fiber thermal insulation blanket, melt temperature is at 1100 ~ 1300 ℃;
The production of new ceramics fiber thermal insulation blanket, fibroblast temperature are 800 ~ 900 ℃;
According to above-mentioned process ratio with raw materials melt, fibroblast.
The fiber that makes is through gaseous phase deposition stove, wherein tensio-active agent, be 10:1:90 in conjunction with coupling agent and hydrophober ratio, the new type high temperature nano hydrophobic material that makes is solvent type, tensio-active agent is such as alcohol, Virahol or containing hydrogen silicone oil; Be so that hydrophober is easy to be attached on the fiber with the form of bridging in conjunction with coupling agent, comprise silane coupling agent or titanate coupling agent;
With the above-mentioned fiber made through gaseous phase deposition stove new type high temperature nano hydrophobic material by high pressure permeability or deposit on the every fiber, so that every fiber all has hydrophobic or hydrophobic effect, obtain new ceramics fiber hydrophobic blanket, performance index are as follows: 600 ℃ of use temperatures, hydrophobic rate 99%;
Embodiment 2
Natural hard chamotte add-on is 70wt.%, and the quartz sand add-on is 10wt.%, white lime 20%,
The one-tenth method for fiber of new ceramics fiber thermal insulation blanket adopts blowing process;
The production of new ceramics fiber thermal insulation blanket, melt temperature is at 1300 ~ 1500 ℃;
The production of new ceramics fiber thermal insulation blanket, fibroblast temperature are 900 ~ 1000 ℃;
Technique is with embodiment 1, wherein tensio-active agent, be 10:0.8:90 in conjunction with coupling agent and hydrophober ratio, the new type high temperature nano hydrophobic material that makes is solvent type, tensio-active agent is such as alcohol, Virahol or containing hydrogen silicone oil; Be so that hydrophober is easy to be attached on the fiber with the form of bridging in conjunction with coupling agent, comprise silane coupling agent or titanate coupling agent; With the above-mentioned fiber made through gaseous phase deposition stove new type high temperature nano hydrophobic material by high pressure permeability or deposit on the every fiber, so that every fiber all has hydrophobic or hydrophobic effect, obtain new ceramics fiber hydrophobic blanket, performance index are as follows: 600 ℃ of use temperatures, hydrophobic rate 97%;
Embodiment 3
Natural hard chamotte add-on is 80wt.%, and the wollastonite add-on is 20wt.%,
The one-tenth method for fiber of new ceramics fiber thermal insulation blanket adopts blowing process;
The production of new ceramics fiber thermal insulation blanket, melt temperature is at 1500 ~ 1700 ℃;
The production of new ceramics fiber thermal insulation blanket, fibroblast temperature are 1000 ~ 1100 ℃;
Technique is with embodiment 1, wherein tensio-active agent, be 15:1:85 in conjunction with coupling agent and hydrophober ratio, the new type high temperature nano hydrophobic material that makes is solvent type, tensio-active agent is such as alcohol, Virahol or containing hydrogen silicone oil; Be so that hydrophober is easy to be attached on the fiber with the form of bridging in conjunction with coupling agent, comprise silane coupling agent or titanate coupling agent; With the above-mentioned fiber made through gaseous phase deposition stove new type high temperature nano hydrophobic material by high pressure permeability or deposit on the every fiber, so that every fiber all has hydrophobic or hydrophobic effect, obtain new ceramics fiber hydrophobic blanket, performance index are as follows: 600 ℃ of use temperatures, hydrophobic rate 98%.
Claims (5)
1. the production method of a new ceramics fiber hydrophobic blanket is characterized in that producing and comprises following step: the use of the production of new ceramics fiber thermal insulation blanket, new type high temperature nano hydrophobic material and hydrophobic material is described below:
(1) production of new ceramics fiber thermal insulation blanket
1. wear into fine powder material to 325 order after the flint clay grogs such as required feed coal spoil or flint clay being mixed, form the fine grinding compound;
2. in the fine grinding compound, add additive, stir;
3. the final compound of rear formation stirs;
4. this compound is evenly spread in the resistance furnace, melt or melting;
5. the fused solution instantaneous cooling of fusing is made fiber;
6. fiber is through the calcining furnace calcining;
(2) new type high temperature nano hydrophobic material preparation and use
1. tensio-active agent, be mixed with new type high temperature nano hydrophobic material in conjunction with coupling agent and hydrophober;
2. with the above-mentioned fiber made through gaseous phase deposition stove new type high temperature nano hydrophobic material by high pressure permeability or deposit on the every fiber, so that every fiber all has hydrophobic or hydrophobic effect.
2. the production method of new ceramics fiber hydrophobic blanket according to claim 1 is characterized in that production stage is as follows:
(1) production of new ceramics fiber thermal insulation blanket
1. contain the silicon-dioxide that weight forms 40 ~ 65 parts in the component of new ceramics fiber thermal insulation blanket, weight forms 20 ~ 50 parts aluminum oxide, and calcium oxide or weight that the weight composition is 10 ~ 20 parts form 10 ~ 20 parts magnesium oxide;
2. the one-tenth method for fiber of new ceramics fiber thermal insulation blanket is to adopt winding-up or centrifugal drying silk technique;
3. the production of new ceramics fiber thermal insulation blanket, melt temperature is at 1100 ~ 1700 ℃;
4. the production of new ceramics fiber thermal insulation blanket, the fibroblast temperature of raw material is 800 ~ 1100 ℃;
(2) new type high temperature nano hydrophobic material preparation and use
The component of new type high temperature nano hydrophobic material is tensio-active agent, be 10 ~ 20:0.1 ~ 1:70 ~ 90 in conjunction with coupling agent and hydrophober ratio;
The new type high temperature nano hydrophobic material that makes is solvent type, and tensio-active agent is such as alcohol, Virahol or containing hydrogen silicone oil;
Be so that hydrophober is easy to be attached on the fiber with the form of bridging in conjunction with coupling agent, comprise silane coupling agent or titanate coupling agent;
With the above-mentioned fiber made through gaseous phase deposition stove new type high temperature nano hydrophobic material by high pressure permeability or deposit on the every fiber, so that every fiber all has hydrophobic or hydrophobic effect.
3. the production method of new ceramics fiber hydrophobic blanket according to claim 1 and 2 is characterized in that described new type high temperature nano hydrophobic material preparation adopts high temperature hydrophobic nanometre material, adds in conjunction with coupling agent.
4. the production method of new ceramics fiber hydrophobic blanket according to claim 1 and 2, the use that it is characterized in that described new type high temperature nano hydrophobic material is to utilize gaseous phase deposition stove, adopts the method for high pressure permeability.
5. the production method of new ceramics fiber hydrophobic blanket according to claim 1 and 2, it is characterized in that the use of described new type high temperature nano hydrophobic material is by atomizing, high-pressure blast penetrates, make the hydrophobic molecule evenly be attached to the surface of every fiber, increase the surface tension of tapetum fibrosum, form preferably hydrophobic barrier film.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193380A (en) * | 2014-08-19 | 2014-12-10 | 鹿成滨 | Aluminium silicate fibers and preparation method thereof |
| CN106192380A (en) * | 2016-08-26 | 2016-12-07 | 明光市瑞洁日用品有限公司 | Preparation method of antibacterial cleaning cloth |
| CN106348778A (en) * | 2016-08-26 | 2017-01-25 | 德清县白兔节能材料有限公司 | Thermal insulation material for ultralow conductivity ceramic fiber energy conservation tube shell |
| CN107012583A (en) * | 2017-03-06 | 2017-08-04 | 常熟市东宇绝缘复合材料有限公司 | The production technology of blend fibre felt |
| CN107170486A (en) * | 2017-05-27 | 2017-09-15 | 中国工程物理研究院材料研究所 | A kind of UO2And U3Si2Hybrid fuel pellet and its production and use |
| CN108442121A (en) * | 2018-04-04 | 2018-08-24 | 山东光明苏普尔耐火纤维有限公司 | A kind of ceramic fiber blanket of novel heat insulation hydrophobic |
| CN108947276A (en) * | 2018-08-16 | 2018-12-07 | 河北新时基业防火保温材料制造有限公司 | A kind of modified mineral cellucotton and preparation method thereof |
| CN109576907A (en) * | 2018-12-25 | 2019-04-05 | 山东鲁阳节能材料股份有限公司 | A kind of hydrophobic type ceramic fibre material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1422820A (en) * | 2001-12-01 | 2003-06-11 | 山东鲁阳股份有限公司 | Method for manufacturing aluminium silicate ceramic fiber using coalgangue and its use |
| CN1562892A (en) * | 2004-04-21 | 2005-01-12 | 李现堂 | Lines of refractory ceramics fiber and fabricating method |
| US20060000611A1 (en) * | 2004-07-02 | 2006-01-05 | Reddy B R | Cement compositions comprising high aspect ratio materials and methods of use in subterranean formations |
| CN102464469A (en) * | 2010-11-19 | 2012-05-23 | 山东鲁阳股份有限公司 | Dry-process-formed hydrophobic ceramic fiber building fireproof plate and preparation method thereof |
-
2012
- 2012-10-19 CN CN2012104029866A patent/CN102875174A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1422820A (en) * | 2001-12-01 | 2003-06-11 | 山东鲁阳股份有限公司 | Method for manufacturing aluminium silicate ceramic fiber using coalgangue and its use |
| CN1562892A (en) * | 2004-04-21 | 2005-01-12 | 李现堂 | Lines of refractory ceramics fiber and fabricating method |
| US20060000611A1 (en) * | 2004-07-02 | 2006-01-05 | Reddy B R | Cement compositions comprising high aspect ratio materials and methods of use in subterranean formations |
| CN102464469A (en) * | 2010-11-19 | 2012-05-23 | 山东鲁阳股份有限公司 | Dry-process-formed hydrophobic ceramic fiber building fireproof plate and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193380A (en) * | 2014-08-19 | 2014-12-10 | 鹿成滨 | Aluminium silicate fibers and preparation method thereof |
| CN106192380A (en) * | 2016-08-26 | 2016-12-07 | 明光市瑞洁日用品有限公司 | Preparation method of antibacterial cleaning cloth |
| CN106348778A (en) * | 2016-08-26 | 2017-01-25 | 德清县白兔节能材料有限公司 | Thermal insulation material for ultralow conductivity ceramic fiber energy conservation tube shell |
| CN107012583A (en) * | 2017-03-06 | 2017-08-04 | 常熟市东宇绝缘复合材料有限公司 | The production technology of blend fibre felt |
| CN107170486A (en) * | 2017-05-27 | 2017-09-15 | 中国工程物理研究院材料研究所 | A kind of UO2And U3Si2Hybrid fuel pellet and its production and use |
| CN107170486B (en) * | 2017-05-27 | 2018-11-27 | 中国工程物理研究院材料研究所 | A kind of UO2And U3Si2Hybrid fuel pellet and its preparation method and application |
| CN108442121A (en) * | 2018-04-04 | 2018-08-24 | 山东光明苏普尔耐火纤维有限公司 | A kind of ceramic fiber blanket of novel heat insulation hydrophobic |
| CN108947276A (en) * | 2018-08-16 | 2018-12-07 | 河北新时基业防火保温材料制造有限公司 | A kind of modified mineral cellucotton and preparation method thereof |
| CN108947276B (en) * | 2018-08-16 | 2021-02-26 | 河北新时基业防火保温材料制造有限公司 | Modified mineral fiber cotton and preparation method thereof |
| CN109576907A (en) * | 2018-12-25 | 2019-04-05 | 山东鲁阳节能材料股份有限公司 | A kind of hydrophobic type ceramic fibre material and preparation method thereof |
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Application publication date: 20130116 |