CN102173727A - Composite high-temperature-resistant wave-absorbing coating material and preparation method of wave-absorbing coating - Google Patents
Composite high-temperature-resistant wave-absorbing coating material and preparation method of wave-absorbing coating Download PDFInfo
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- CN102173727A CN102173727A CN2010105901379A CN201010590137A CN102173727A CN 102173727 A CN102173727 A CN 102173727A CN 2010105901379 A CN2010105901379 A CN 2010105901379A CN 201010590137 A CN201010590137 A CN 201010590137A CN 102173727 A CN102173727 A CN 102173727A
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- dihydrogen phosphate
- absorbing coating
- aluminium dihydrogen
- aluminum oxide
- magnesium oxide
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/342—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more reactive oxides
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
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Abstract
The invention relates to a composite high-temperature-resistant wave-absorbing coating material and a preparation method of a wave-absorbing coating, belonging to the technical field of electronic materials. The composite high-temperature-resistant wave-absorbing coating material provided by the invention is prepared by mixing the following components in percentage by mass: 12.6-18% of aluminum dihydrogen phosphate, 0.7-1% of magnesium oxide, 0.7-1% of aluminum oxide and 80-86% of crystal silicon, wherein deionized water is used as a solvent. The coating provided by the invention has the advantages of favorable heat resistance and excellent wave-absorbing performance.
Description
Technical field
The invention belongs to technical field of electronic materials, particularly high temperature resistant dielectric hertzian wave microwave absorbing coating and technology of preparing thereof.
Background technology
Weaponry needs stealthy position to divide according to working temperature, can be divided into normal temperature and high temperature two classes,, at high temperature lose magnetism because most magnetic absorption agent Curie temperature is lower, thereby lose absorbing property, so the stealthy of weapon high temperature position must be adopted the high temperature absorbing material.Because the high temperature absorbing material only relies on the electrical loss of material to absorb hertzian wave, thus its wave absorbing efficiency far below the magnetic absorbing material, this just requires the high temperature absorbing material to have bigger thickness.
The most number average of present microwave absorbing coating adopts the limited organic adhesion agent of resistance toheat as wedding agent, and therefore the microwave absorbing coating of preparation generally can only use below 300 ℃, and this just causes with ceramic aggregate high thermal resistance matched performance wherein very poor; And in the industrial production of reality, the Working environment that 500～700 ℃ of high temperature harshnesses can occur, select for use high thermal resistance good, the inorganic adhesive that cohesive strength is high prepares high temperature resistant microwave absorbing coating as tackiness agent, so just overcome the deficiency of organic adhesion agent resistance to elevated temperatures, the various advantages (simple, satisfy all kinds of complex construction coatings, economy, environmental protection etc.) that possess simultaneously adhesive coating again as moulding process, thereby widen its Application Areas in industry greatly, but the technology that adopts inorganic bonding agent to prepare microwave absorbing coating rarely has report both at home and abroad.
Phosphate Heat Resistant Coatings can receive much concern by anti-1700 ℃ high temperature because of it is the highest.Its strong adhesion, inexpensive, toxicity is low, pollute and less, not fire advantage such as not quick-fried and be used widely, because its film forming is based on the dehydrating condensation of acid phosphate radical, need under high bake, could solidify, so can satisfy the service requirements of weapon high-temperature part substantially.The phosphoric acid salt sizing agent is of a great variety, and wherein aluminium dihydrogen phosphate is that bond effect is best, mechanical property excellence a kind of, so aluminium dihydrogen phosphate is at present most widely used general, attention rate is the highest, studies maximum phosphoric acid salt sizing agents;
Silicon metal as load forms by 1300 ℃ of sintering, has good resistance to elevated temperatures, has good dielectric properties simultaneously, can satisfy the coated designs requirement fully.
Summary of the invention
The object of the present invention is to provide a kind of high temperature resistant electromagnetic wave absorber coatings and preparation method thereof, the absorption of electromagnetic wave coating of preparation is had below 800 ℃, (have the relative characteristics such as thin of high electrical loss, stable performance and thickness in 4GHz～8GHz, 8GHz～12GHz, the 10GHz～14GHz) at specific microwave frequency band.
A kind of high temperature resistant electromagnetic wave absorber coatings is made up of aluminium dihydrogen phosphate, magnesium oxide, aluminum oxide, silicon metal, it is characterized in that, each component is mixed (deionized water is a solvent) according to following mass percent:
Aluminium dihydrogen phosphate 12.6～18;
Magnesium oxide 0.7～1;
Aluminum oxide 0.7～1;
Utilize spraying method to be sprayed at size, and form the high temperature resistant microwave absorbing coating of thickness at the 0.9-1.3 millimeter on (20*20 centimetre) aluminium sheet.
A kind of preparation method of high temperature resistant electromagnetic wave absorber coatings as shown in Figure 1, is characterized in that comprising the steps:
Step 3 is mixed stirring until evenly with the aluminium dihydrogen phosphate sizing agent of preparation in the step 2 with crystallization silica flour (80%～86%), obtain high temperature resistant antiradar coatings.
The present invention has following outstanding advantage:
1, be tamanori with inorganic sizing agent aluminium dihydrogen phosphate, the support materials silicon metal is an absorption agent, because the phosphoric acid salt sizing agent is the highest can anti-1700 ℃ high temperature, silicon metal is to form by 1300 ℃ of sintering simultaneously, be used for high power load, so the coating that makes has the good heat endurance energy, reach as high as 800 ℃.
2, technology is simple, workable, and cost is lower, and can realize producing in batches.
3, this absorber coatings is that inorganics is formed, and is nontoxic, easy to use.
4, absorbing property excellence of the present invention, absorber coatings can reach: when absorbent contents is 86%, all be lower than-5dB at its reflectivity of 10GHz～14GHz, peak value reaches-35dB; Absorbent contents is 84% o'clock, all is lower than-5dB at its reflectivity of 8GHz～12GHz, and peak value is-22dB; Absorbent contents is 80% o'clock, all is lower than-5dB at its reflectivity of 4GHz～8GHz, and peak value reaches-32dB.As Fig. 2.
Description of drawings
Fig. 1 is a high temperature resistant electromagnetic wave absorber coatings preparation technology schema of the present invention.
Fig. 2 is a high temperature resistant electromagnetic wave absorber coatings solidification value curve of the present invention.
Fig. 3 is the reflectivity collection of illustrative plates of high temperature resistant electromagnetic wave absorber coatings of the present invention, and as shown in the figure, a figure all is lower than-5dB at its reflectivity of 4GHz～8GHz, and peak value reaches-32dB, and its thickness is 1.3 millimeters; B figure all is lower than-5dB at its reflectivity of 8GHz～12GHz, and peak value is-22dB that its thickness is 11 millimeters; C figure all is lower than-5dB at its reflectivity of 10GHz～14GHz, and peak value reaches-35dB, and its thickness is 0.9 millimeter.
Embodiment
Embodiment one
A kind of high temperature resistant electromagnetic wave absorber coatings is made up of aluminium dihydrogen phosphate, magnesium oxide, aluminum oxide and silicon metal, and each component is molten mutually by following mass percent:
Be sprayed at size on (20*20 centimetre) aluminium sheet and to form thickness be 1.3 millimeters high temperature resistant microwave absorbing coating with spraying method.
Can obtain the high temperature resistant electromagnetic wave absorber coatings by described preparation process, this coating all is lower than-5dB at its reflectivity of 4GHz～8GHz 800 ℃ of following stable performances at this moment, and peak value reaches-32dB.
Embodiment two
A kind of high temperature resistant electromagnetic wave absorber coatings is made up of aluminium dihydrogen phosphate, magnesium oxide, aluminum oxide and silicon metal, and each component is molten mutually by following mass percent:
Aluminium dihydrogen phosphate 14.4
Magnesium oxide 0.8
Aluminum oxide 0.8
Silicon metal 84
Be sprayed at size on (20*20 centimetre) aluminium sheet and to form thickness be 1.3 millimeters high temperature resistant microwave absorbing coating with spraying method.
Can obtain the high temperature resistant electromagnetic wave absorber coatings by described preparation process, this coating all is lower than-5dB at its reflectivity of 8GHz～12GHz 800 ℃ of following stable performances at this moment, and peak value reaches-22dB.
Embodiment three
A kind of high temperature resistant electromagnetic wave absorber coatings is made up of aluminium dihydrogen phosphate, magnesium oxide, aluminum oxide and silicon metal, and each component is molten mutually by following mass percent:
Aluminium dihydrogen phosphate 12.6
Magnesium oxide 0.7
Aluminum oxide 0.7
Be sprayed at size on (20*20 centimetre) aluminium sheet and to form thickness be 1.3 millimeters high temperature resistant microwave absorbing coating with spraying method.
Can obtain the high temperature resistant electromagnetic wave absorber coatings by described preparation process, this coating all is lower than-5dB at its reflectivity of 10GHz～14GHz 800 ℃ of following stable performances at this moment, and peak value reaches-35dB.
The described high temperature resistant electromagnetic wave absorber coatings of above-mentioned three embodiments, its preparation method is all identical with the preparation method described in the summary of the invention, no longer repeats at this.
Claims (4)
1. the complex fire resistant wave-absorbing coating material is characterized in that, form by aluminium dihydrogen phosphate, magnesium oxide, aluminum oxide, silicon metal, and with the deionized water solvent, each component is mixed according to following mass percent:
Aluminium dihydrogen phosphate 12.6～18;
Magnesium oxide 0.7～1;
Aluminum oxide 0.7～1;
Silicon metal 80～86.
2. complex fire resistant wave-absorbing coating material as claimed in claim 1 is characterized in that, each constituent mass per-cent is:
Aluminium dihydrogen phosphate 18
Magnesium oxide 1
Aluminum oxide 1
Silicon metal 80.
3. the high temperature resistant wave-absorbing coating material of aluminium dihydrogen phosphate composite junction crystal silicon as claimed in claim 1 is characterized in that each constituent mass per-cent is:
Aluminium dihydrogen phosphate 12.6
Magnesium oxide 0.7
Aluminum oxide 0.7
Silicon metal 86.
4. the preparation method of microwave absorbing coating is characterized in that, comprises the steps:
Step 1 adds deionized water with industrial 85% strong phosphoric acid and is diluted to 60%, and 3 to 1 mix with aluminium hydroxide in molar ratio, 93 ℃ of reactions down, stir with stirrer,, stop heating until generating transparent settled solution, add deionized water and adjust pH value, make aluminium dihydrogen phosphate between the 3.5-4;
Step 2 is mixed stirring until obtaining settled solution with the aluminium dihydrogen phosphate of step 1 gained with magnesium oxide, aluminum oxide;
Step 3 is mixed stirring until evenly with the aluminium dihydrogen phosphate sizing agent of preparation in the step 2 with the crystallization silica flour, obtain high temperature resistant antiradar coatings;
Step 4 is sprayed at step 3 gained coating on the aluminium sheet, and room temperature was placed 4～5 hours, put into baking oven and was cured with the predetermined heat curve;
In step 2 and the step 3, by percentage to the quality, aluminium dihydrogen phosphate: 12.6%～18%, magnesium oxide: 0.7%～1%, aluminum oxide 0.7%～1%, crystallization silica flour: 80%～86%.
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| CN201010590137.9A CN102173727B (en) | 2010-12-15 | 2010-12-15 | Composite high-temperature-resistant wave-absorbing coating material and preparation method of wave-absorbing coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106895272A (en) * | 2016-12-31 | 2017-06-27 | 新昌县迪斯曼科技有限公司 | Use the light-emitting device of organic compound |
| CN108570668A (en) * | 2018-05-22 | 2018-09-25 | 江苏昊科汽车空调有限公司 | High heat insulation and wear resistance composite membrane of vehicle-mounted air conditioner compressor vortex disk and preparation method thereof |
| CN108800942A (en) * | 2018-06-29 | 2018-11-13 | 河南玉发磨料有限公司 | A kind of corundum smelting bell heat-preservation cotton improved structure |
| CN109265127A (en) * | 2018-11-19 | 2019-01-25 | 河北工业大学 | A kind of preparation method of 3D printing high-strength and high-ductility microwave defense material |
| CN109265128A (en) * | 2018-11-19 | 2019-01-25 | 河北工业大学 | It is a kind of can 3D printing electromagnetic protection phosphate material preparation method |
| CN109534772A (en) * | 2019-01-16 | 2019-03-29 | 山东国帅节能环保科技有限公司 | A kind of heat superconducting porcelain film composite material and preparation method thereof |
| CN109896845A (en) * | 2019-04-17 | 2019-06-18 | 成都图兰达科技有限公司 | A kind of microwave high power material and its preparation process |
| CN110317048A (en) * | 2019-08-19 | 2019-10-11 | 宜宾红星电子有限公司 | A kind of microwave device absorbing material and preparation method thereof |
| CN113471651A (en) * | 2021-05-17 | 2021-10-01 | 北京无线电测量研究所 | Corrugated waveguide filter |
| CN114347517A (en) * | 2022-01-19 | 2022-04-15 | 成都佳驰电子科技股份有限公司 | Electromagnetic function structure integrated wave-absorbing edge design method |
| CN116239909A (en) * | 2023-01-17 | 2023-06-09 | 哈尔滨工业大学 | High Wen Yinshen coating capable of regulating and controlling wave absorbing performance and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812943A (en) * | 2003-06-06 | 2006-08-02 | 豪富公司 | Multi-layer fire barrier systems |
| CN101899231A (en) * | 2009-05-26 | 2010-12-01 | 世纪汉元(北京)科技有限公司 | Paint capable of resisting high temperature of over 1,800 DEG C |
-
2010
- 2010-12-15 CN CN201010590137.9A patent/CN102173727B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812943A (en) * | 2003-06-06 | 2006-08-02 | 豪富公司 | Multi-layer fire barrier systems |
| CN101899231A (en) * | 2009-05-26 | 2010-12-01 | 世纪汉元(北京)科技有限公司 | Paint capable of resisting high temperature of over 1,800 DEG C |
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| CN106895272A (en) * | 2016-12-31 | 2017-06-27 | 新昌县迪斯曼科技有限公司 | Use the light-emitting device of organic compound |
| CN108570668A (en) * | 2018-05-22 | 2018-09-25 | 江苏昊科汽车空调有限公司 | High heat insulation and wear resistance composite membrane of vehicle-mounted air conditioner compressor vortex disk and preparation method thereof |
| CN108800942A (en) * | 2018-06-29 | 2018-11-13 | 河南玉发磨料有限公司 | A kind of corundum smelting bell heat-preservation cotton improved structure |
| CN109265127B (en) * | 2018-11-19 | 2021-09-07 | 河北工业大学 | Preparation method of high-strength high-toughness electromagnetic protection material for 3D printing |
| CN109265127A (en) * | 2018-11-19 | 2019-01-25 | 河北工业大学 | A kind of preparation method of 3D printing high-strength and high-ductility microwave defense material |
| CN109265128A (en) * | 2018-11-19 | 2019-01-25 | 河北工业大学 | It is a kind of can 3D printing electromagnetic protection phosphate material preparation method |
| CN109534772A (en) * | 2019-01-16 | 2019-03-29 | 山东国帅节能环保科技有限公司 | A kind of heat superconducting porcelain film composite material and preparation method thereof |
| CN109534772B (en) * | 2019-01-16 | 2022-03-18 | 上海欧尔塔特种印刷科技有限公司 | Novel superconducting ceramic film composite material and preparation method thereof |
| CN109896845A (en) * | 2019-04-17 | 2019-06-18 | 成都图兰达科技有限公司 | A kind of microwave high power material and its preparation process |
| CN109896845B (en) * | 2019-04-17 | 2021-12-07 | 成都图兰达科技有限公司 | Microwave high-power material and preparation process thereof |
| CN110317048A (en) * | 2019-08-19 | 2019-10-11 | 宜宾红星电子有限公司 | A kind of microwave device absorbing material and preparation method thereof |
| CN113471651A (en) * | 2021-05-17 | 2021-10-01 | 北京无线电测量研究所 | Corrugated waveguide filter |
| CN114347517A (en) * | 2022-01-19 | 2022-04-15 | 成都佳驰电子科技股份有限公司 | Electromagnetic function structure integrated wave-absorbing edge design method |
| CN114347517B (en) * | 2022-01-19 | 2024-04-05 | 成都佳驰电子科技股份有限公司 | Electromagnetic functional structure integrated wave-absorbing edge design method |
| CN116239909A (en) * | 2023-01-17 | 2023-06-09 | 哈尔滨工业大学 | High Wen Yinshen coating capable of regulating and controlling wave absorbing performance and preparation method thereof |
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| CN102173727B (en) | 2015-06-10 |
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Effective date of registration: 20200903 Address after: 610054 No.288, west section of Wenming street, new economic Industrial Park, south area of Chengdu modern industrial port, Pidu District, Chengdu City, Sichuan Province Patentee after: CHENGDU JIACHI ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 610041, No. 2006, West Avenue, Chengdu hi tech Zone (West District, Sichuan) Patentee before: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY |
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Address after: 610054 No. 288, west section of Wenming street, new economic Industrial Park, south area of Chengdu modern industrial port, Pidu District, Chengdu, Sichuan Patentee after: Chengdu Jiachi Electronic Technology Co.,Ltd. Address before: 610054 No. 288, west section of Wenming street, new economic Industrial Park, south area of Chengdu modern industrial port, Pidu District, Chengdu, Sichuan Patentee before: CHENGDU JIACHI ELECTRONIC TECHNOLOGY Co.,Ltd. |