CN101648817B - High temperature resistance low-expansion high-radiation (reflecting) inorganic waterproof coating - Google Patents
High temperature resistance low-expansion high-radiation (reflecting) inorganic waterproof coating Download PDFInfo
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- CN101648817B CN101648817B CN2009100177551A CN200910017755A CN101648817B CN 101648817 B CN101648817 B CN 101648817B CN 2009100177551 A CN2009100177551 A CN 2009100177551A CN 200910017755 A CN200910017755 A CN 200910017755A CN 101648817 B CN101648817 B CN 101648817B
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Abstract
The invention relates to a high temperature resistance low-expansion high-radiation (reflecting) inorganic waterproof coating, belonging to the technical field of inorganic materials and being applied to aircraft parts. The inorganic waterproof coating comprises the following ingredients according to weight percentage: 50-80% of synthetic borosilicate glass powder, 5-30% of beta-eucryptite, 0-5% of quartz powder, 0-20% of silicon tetraboride, 0-10% of black pigment and 1-3% of assistant, wherein, the assistant is obtained by blending polyethylene glycol and tributyl phosphate and the weight blending ratio is 2:(0.5-2). The invention has good combining and matching performance and can satisfy the requirements of high temperature resistance, low expansion and high radiation.
Description
Technical field
The present invention relates to a kind of high temperature resistance low-expansion high-radiation and penetrate (reflection) inorganic waterproof coating, belong to technical field of inorganic material, be used for aircraft component.
Background technology
In the hot environment, heat transfer is the complex heat transfer of multiple mode, so it is heat insulation also just to need multiple means, hyperthermia radiation or reflective insulation are exactly wherein a kind of.Wanting lagging material and have low heat conduction, high radiation heat insulation concurrently, can apply high radiation or reflectance coating on the low thermal conductivity heat-insulating material matrix according to different thermal environments, is a kind of ideal mode.But this also puts forward very harsh requirement to coating; coating must have high temperature resistant, high radiation or high reflectance; especially to have identical or approaching thermal expansivity with matrix; the coating of on various aircraft, using simultaneously; for protecting various electronic components etc., generally all require coating to have waterproof and dampproof function.
Though the organic coating rubber-like coefficient of expansion, non-refractory can only be selected the inorganic non-metallic coating for use.In general, the characteristics that lagging material density is low more, porosity is high more, the coefficient of expansion is low and intensity is low, especially for high-performance insulation material, all the more so, the quartzy thermal insulation tile of space shuttle for example, and inorganic coating is generally dense, the coefficient of expansion is also bigger simultaneously, is difficult to and low-density lagging material coupling, in conjunction with firm.Therefore, development is a kind of has high temperature resistant, low bulk, high radiation (reflection), waterproof inorganic materials and has crucial meaning.
Summary of the invention
The object of the present invention is to provide a kind of high temperature resistance low-expansion high-radiation to penetrate (reflection) inorganic waterproof coating, good in conjunction with matched performance, and satisfy high temperature resistant, low bulk and high radiation requirement.
High temperature resistance low-expansion high-radiation of the present invention is penetrated (reflection) inorganic waterproof coating, its ingredients by weight consists of: synthetic borosilicate glass powder 50～80%, beta-eucryptite 5～30%, silica powder 0～5%, four silicon borides 0～20%, black pigment 0～10% and auxiliary agent 1～3%, wherein, auxiliary agent is mixed by polyoxyethylene glycol and tributyl phosphate, and the weight blending ratio is 2: (0.5～2).
Wherein:
Synthetic borosilicate glass powder be by boron oxide and silicon-dioxide by weight 1: (2～20) are synthetic through 1000～1200 ℃ of fusions of high temperature.
Beta-eucryptite be by Quilonum Retard, aluminum oxide and silicon-dioxide according to mol ratio 1: 1: (2～5) are synthetic through 1100～1400 ℃ of high temperature.
Black pigment is cobalt black pigment or does not have cobalt black pigment.
Other raw materials used silica powder, four silicon borides, black pigment etc. all have the commercially available prod, can directly buy, and under the possible situation, preferably buy powder raw material and use.
With the synthetic borosilicate glass powder of coating compounding of the present invention, beta-eucryptite, silica powder, four silicon borides and black pigment, disperse through ball milling, add water and auxiliary agent furnishing slip again, can spray or brush on matrix, to make and film, dry after 1000～1300 ℃ high temperature sintering makes coating, the coating resistance to elevated temperatures is good, can be at life-time service below 1200 ℃, have the low bulk performance, the coefficient of expansion is 1～10 * 10
-6Between the mm/mmK, good in conjunction with matched performance, high radiation, radiation coefficient is 0.05～0.95, water resistance good (≯ 0.3%), and also any surface finish is smooth.
In the aircraft such as coating of the present invention can be used for that requirement is high temperature resistant, low bulk, high radiation or high reflective insulation, waterproof and dampproof space flight, aviation, guided missile in the thermal protection, heat insulation tile of shuttle etc. for example, perhaps be applied to high temperature resistant, insulation etc. and need hyperthermia radiation heat exchange environment, for example high-temperature insulation ceramic heat exchanger etc.
Description of drawings
Fig. 1, coating preparation FB(flow block) of the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
Synthetic borosilicate glass powder is synthetic through 1100 ± 15 ℃ of fusions of high temperature by weight 1: 10 by boron oxide and silicon-dioxide.
Beta-eucryptite is synthetic through 1150 ± 10 ℃ of high temperature according to mol ratio 1: 1: 3 by Quilonum Retard, aluminum oxide and silicon-dioxide.
High temperature resistance low-expansion high-radiation of the present invention is penetrated (reflection) inorganic waterproof coating, its ingredients by weight consists of: synthetic borosilicate glass powder 50%, beta-eucryptite 30%, fused quartz powder 5%, four silicon borides 2%, cobalt black pigment 10% and auxiliary agent 3%, wherein, auxiliary agent is mixed by polyoxyethylene glycol and tributyl phosphate, and the weight blending ratio is 2: 1.
With borosilicate glass powder, beta-eucryptite, fused quartz powder, four silicon borides and the weighing in proportion of cobalt black pigment, pack into to grind in the jar and carry out ball mill pulverizing, sieve with 900 eye mesh screens then, add deionized water and auxiliary agent modulation slip, again the matrix surface after handling is sprayed or brush film forming.Dry filming, put into High Temperature Furnaces Heating Apparatus high temperature afterwards and burn till, burning till the high temperature section temperature is 1200 ± 40 ℃, prepares coating.Firm by the smooth densification of coatingsurface and the matrix bond of above-mentioned prepared, record performance index and be: high temperature resistant (can at life-time service below 1200 ℃), the coefficient of expansion be 1 * 10
-6Mm/mmK (600 ℃), normal direction radiation coefficient be up to 0.95, water-intake rate 0.1%.Can be applicable in heat insulation or other hyperthermia radiation heat exchange fields of the various hyperthermia radiations that comprise heat insulation tile of shuttle.
Embodiment 2
Synthetic borosilicate glass powder is synthetic through 1050 ± 30 ℃ of fusions of high temperature by weight 1: 15 by boron oxide and silicon-dioxide.
Beta-eucryptite is synthetic through 1200 ± 20 ℃ of high temperature according to mol ratio 1: 1: 2.5 by Quilonum Retard, aluminum oxide and silicon-dioxide.
High temperature resistance low-expansion high-radiation of the present invention is penetrated (reflection) inorganic waterproof coating, its ingredients by weight consists of: synthetic borosilicate glass powder 65%, beta-eucryptite 15%, fused quartz powder 5%, four silicon borides 5%, cobalt black pigment 7% and auxiliary agent 3%, wherein, auxiliary agent is mixed by polyoxyethylene glycol and tributyl phosphate, and the weight blending ratio is 2: 1.5.
Other process is with embodiment 1, and is firm by the smooth densification of coatingsurface and the matrix bond of above-mentioned prepared, records performance index and is: high temperature resistant (can at life-time service below 1200 ℃), the coefficient of expansion be 1.6 * 10
-6Mm/mmK (600 ℃), normal direction radiation coefficient 0.90, water-intake rate 0.1%.
Embodiment 3
Synthetic borosilicate glass powder is synthetic through 1160 ± 10 ℃ of fusions of high temperature by weight 1: 8 by boron oxide and silicon-dioxide.
Beta-eucryptite is synthetic through 1300 ± 30 ℃ of high temperature according to mol ratio 1: 1: 4 by Quilonum Retard, aluminum oxide and silicon-dioxide.
High temperature resistance low-expansion high-radiation of the present invention is penetrated (reflection) inorganic waterproof coating, its ingredients by weight consists of: synthetic borosilicate glass powder 80%, beta-eucryptite 5%, four silicon borides 5%, no cobalt black pigment 7% and auxiliary agent 3%, wherein, auxiliary agent is mixed by polyoxyethylene glycol and tributyl phosphate, and the weight blending ratio is 2: 0.8.
Other process is with embodiment 1, and is firm by the smooth densification of coatingsurface and the matrix bond of above-mentioned prepared, records performance index and is: high temperature resistant (can at life-time service below 1200 ℃), the coefficient of expansion be 3.6 * 10
-6Mm/mmK (600 ℃), normal direction radiation coefficient 0.87, water-intake rate 0.3%.
Embodiment 4
Synthetic borosilicate glass powder is synthetic through 1150 ± 10 ℃ of fusions of high temperature by weight 1: 13 by boron oxide and silicon-dioxide.
Beta-eucryptite is synthetic through 1280 ± 10 ℃ of high temperature according to mol ratio 1: 1: 5 by Quilonum Retard, aluminum oxide and silicon-dioxide.
High temperature resistance low-expansion high-radiation of the present invention is penetrated (reflection) inorganic waterproof coating, its ingredients by weight consists of: synthetic borosilicate glass powder 63%, beta-eucryptite 20%, fused quartz powder 5%, four silicon borides 10% and auxiliary agent 2%, wherein, auxiliary agent is mixed by polyoxyethylene glycol and tributyl phosphate, and the weight blending ratio is 2: 1.6.
Other process is with embodiment 1, and is firm by the smooth densification of coatingsurface and the matrix bond of above-mentioned prepared, records performance index and is: high temperature resistant (can at life-time service below 1200 ℃), the coefficient of expansion be 2.1 * 10
-6Mm/mmK (600 ℃), the normal direction radiation coefficient has only 0.10, water-intake rate 0.1%.
Embodiment 5
Synthetic borosilicate glass powder is synthetic through 1100 ± 20 ℃ of fusions of high temperature by weight 1: 10 by boron oxide and silicon-dioxide.
Beta-eucryptite is synthetic through 1350 ± 15 ℃ of high temperature according to mol ratio 1: 1: 3.5 by Quilonum Retard, aluminum oxide and silicon-dioxide.
High temperature resistance low-expansion high-radiation of the present invention is penetrated (reflection) inorganic waterproof coating, its ingredients by weight consists of: synthetic borosilicate glass powder 70%, beta-eucryptite 23%, fused quartz powder 5% and auxiliary agent 2%, wherein, auxiliary agent is mixed by polyoxyethylene glycol and tributyl phosphate, and the weight blending ratio is 2: 1.2.
Other process is with embodiment 1, and is firm by the smooth densification of coatingsurface and the matrix bond of above-mentioned prepared, records performance index and is: high temperature resistant (can at life-time service below 1200 ℃), the coefficient of expansion be 1.9 * 10
-6Mm/mmK (600 ℃), the normal direction radiation coefficient has only 0.05, water-intake rate 0.1%.Can be applicable in the various high temperature reflective insulations field that comprises heat insulation tile of shuttle.
Claims (4)
1. a high temperature resistance low-expansion high-radiation is penetrated inorganic waterproof coating, it is characterized in that its ingredients by weight consists of: synthetic borosilicate glass powder 50～80%, beta-eucryptite 5～30%, silica powder 0～5%, four silicon borides 0～20%, black pigment 0～10% and auxiliary agent 1～3%, wherein:
Synthetic borosilicate glass powder be by boron oxide and silicon-dioxide by weight 1: (2～20) are synthetic through 1000～1200 ℃ of fusions of high temperature;
Auxiliary agent is mixed by polyoxyethylene glycol and tributyl phosphate, and the weight blending ratio is 2: (0.5～2).
2. high temperature resistance low-expansion high-radiation according to claim 1 is penetrated inorganic waterproof coating, it is characterized in that eucryptite be by Quilonum Retard, aluminum oxide and silicon-dioxide according to mol ratio 1: 1: (2～5) are synthetic through 1100～1400 ℃ of high temperature.
3. high temperature resistance low-expansion high-radiation according to claim 1 and 2 is penetrated inorganic waterproof coating, it is characterized in that black pigment is a cobalt black pigment.
4. high temperature resistance low-expansion high-radiation according to claim 1 and 2 is penetrated inorganic waterproof coating, it is characterized in that black pigment is no cobalt black pigment.
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| CN102153897B (en) * | 2010-12-16 | 2012-07-04 | 济南大学 | Spodumene dense coating and preparation method and application thereof |
| CN103467074B (en) * | 2013-08-19 | 2016-01-13 | 航天特种材料及工艺技术研究所 | A kind of high-temperaure coating and preparation method thereof |
| CN104860717B (en) * | 2015-04-15 | 2016-11-23 | 哈尔滨工业大学 | A kind of preparation method of rigid ceramic thermal insulation tile face coat |
| CN106083115B (en) * | 2016-06-12 | 2019-07-02 | 山东工业陶瓷研究设计院有限公司 | The thermal insulation tile coating and preparation method thereof of resistance to 1500 DEG C of high temperature |
| CN106116700A (en) * | 2016-06-30 | 2016-11-16 | 山东工业陶瓷研究设计院有限公司 | Nitride ceramics high-temperature wear resistant coating and preparation method thereof |
| CN107142715B (en) * | 2017-04-11 | 2019-10-29 | 南京工业大学 | A kind of reusable anti-heat-insulation integrative material of light flexible and preparation method thereof |
| CN109678538B (en) * | 2019-01-28 | 2021-11-26 | 深圳市凯盛科技工程有限公司 | Anti-aging agent for high-temperature-resistant infrared coating and preparation method thereof |
Citations (2)
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|---|---|---|---|---|
| JP2885629B2 (en) * | 1993-12-27 | 1999-04-26 | ハリマセラミック株式会社 | Flame spray material |
| CN1939875A (en) * | 2006-09-07 | 2007-04-04 | 浙江大学 | Thermal-knock resisting diamond spar-spinele refractory materials and its production |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2885629B2 (en) * | 1993-12-27 | 1999-04-26 | ハリマセラミック株式会社 | Flame spray material |
| CN1939875A (en) * | 2006-09-07 | 2007-04-04 | 浙江大学 | Thermal-knock resisting diamond spar-spinele refractory materials and its production |
Non-Patent Citations (2)
| Title |
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| JP昭62-263279A 1987.11.16 |
| JP第2885629号B2 1999.04.26 |
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