CN101725795A - Method for preparing multilayer heat insulation material - Google Patents
Method for preparing multilayer heat insulation material Download PDFInfo
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- CN101725795A CN101725795A CN200910312070A CN200910312070A CN101725795A CN 101725795 A CN101725795 A CN 101725795A CN 200910312070 A CN200910312070 A CN 200910312070A CN 200910312070 A CN200910312070 A CN 200910312070A CN 101725795 A CN101725795 A CN 101725795A
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Abstract
The invention discloses a method for preparing a multilayer insulation material, and relates to a method for preparing the heat insulation material. The method solves the problem that the conventional heat insulation material cannot meet the heat protection/insulation requirements of a large-area intermediate temperate region of a 6 to 15 Ma aircraft; the method comprises the following steps: (1) manufacturing a workpiece A, (2) processing the workpiece A, (3) performing heat treatment on the workpiece A, and (4) coating a layer of resin containing n-octadecane microcapsules encapsulated by polyurethane on a fiber cloth layer of the workpiece A after the heat treatment. The heat insulation material manufactured by the method has good performance and meets the heat protection/insulation requirements of the large-area intermediate temperate region of the 6 to 15 Ma aircraft.
Description
Technical field
The present invention relates to a kind of preparation method of hot material.
Background technique
At present, some 6～15Ma aircraft does not allow ablated surface in flight course, the thermal-protective material of single structure is difficult to satisfy the pneumatic heat condition of 6～15Ma aircraft harshness, only considers that from improving the heat-insulating capability of thermal-protective material own the difficulty of its input cost and material development is all very big.Multilayer insulation material is a kind of as the large size heat insulation material because in light weight, resistance to heat shocks good, easy to maintenance, advantages of cheap price, obtained using widely at the low temperature area of aircraft.Traditional multilayer insulation material is mainly formed by thermal-protective material Spacer and metal foil reflecting screen overlapping combination, inner metal foil can effectively stop radiation heat transfer in the thermal-protective material, does not prevent/heat insulation requirement but satisfy in 6～15Ma aircraft large size warm area under thickness limits.
Summary of the invention
The present invention does not satisfy in 6～15Ma aircraft large size warm area and prevents/heat insulation requirement in order to solve existing preparation thermal-protective material, and a kind of preparation method of multilayer insulation material is provided.
The preparation method of multilayer insulation material of the present invention is prepared according to following steps: one, with fibre cloth, the heat insulation felt that 3～5mm is thick, the heat insulation felt that 3～10mm is thick, heat insulation felt and fleece that 10～50mm is thick bond together successively, obtain workpiece A, wherein the heat insulation felt that fibre cloth and 3～5mm are thick bonds with the aluminium base high-temperature agglomerant of silicic acid, the heat insulation felt that the heat insulation felt that 3～5mm is thick and 3～10mm are thick bonds with the thick modified binder that contains the Al-Si alloy of 1.5～2.5mm, the thick heat insulation felt of the heat insulation felt that 3～10mm is thick and 10～50mm bonds with the modified binder of the thick contains sodium sulfate of 1.5～2.5mm, and heat insulation felt that 10～50mm is thick and fleece bond with the aluminium base high-temperature agglomerant of silicic acid; Two, workpiece A is put into fume hood 30～60h, again workpiece A is put into blowing-type baking oven internal heating curing 45～75h of 60～65 ℃, fleece one side with workpiece A is heated to 1000～1100 ℃ at last, and fibre cloth one side is heated to 90～110 ℃, insulation 5～7h; Three, the workpiece A after step 2 is handled puts into High Temperature Furnaces and heat-treats, and is under the condition of 3～10 ℃/min at heating rate, and the temperature of High Temperature Furnaces is risen to 600～800 ℃, and 0.5～8h is handled in insulation; Four, the fibre cloth surface-coated one deck of workpiece A after step 3 is handled contains the resin of polyurethane encapsulation n-octadecane microcapsule, promptly obtain multilayer insulation material, the making method that wherein contains the modified binder of the modified binder of Al-Si alloy and contains sodium sulfate in the step 1 is: aluminium oxide is encapsulated Al-Si alloy and aluminium oxide encapsulation sodium sulfate pour into respectively in the aluminium base high-temperature agglomerant of silicic acid and mix, promptly obtain containing the modified binder of Al-Si alloy and the modified binder of contains sodium sulfate, wherein the mass ratio of aluminium oxide encapsulation Al-Si alloy and high-temperature agglomerant is 35～45: 2, and the mass ratio of aluminium oxide encapsulation sodium sulfate and high-temperature agglomerant is 35～45: 2.
Can add SiO in the high-temperature agglomerant of the present invention
2Aerogel or Al
2O
3Aerogel.
Structure involved in the present invention mainly comprises following two-part: insulation material layer and contain the phase change material structure layer, wherein insulation material layer is a fiber paper, containing phase-change material (aluminium oxide encapsulation Al-Si alloy and aluminium oxide encapsulation sodium sulfate) construction layer is adhesive layer, thermal-protective material bonds together with phase-change material, make thermal-protective material of the present invention can bear violent hot-fluid, thermal-protective material of the present invention can anti-800～1200 ℃ high temperature, warm area is prevented/heat insulation requirement in the satisfied 6～15Ma aircraft large size of energy, under identical service condition, compare with existing thermal-protective material, the inventive method prepares multilayer insulation material thickness and has reduced 20%～30%, has improved load.Making method of the present invention is simple, and employed material price is low, and method cost of the present invention is low.
Added phase-change material (aluminium oxide encapsulation Al-Si alloy and aluminium oxide encapsulation sodium sulfate) in the structure of thermal-protective material of the present invention, making structure phase-change material when temperature rises to or be higher than the phase-change material phase transition temperature absorb heat undergoes phase transition, variation greater than 20 ℃ does not take place in this degree of structuration in the phase-change material phase transition process, thermal-protective material just continued to heat up after the phase-change material phase transformation was finished; After aircraft surface stops heating, when temperature is lower than the phase-change material phase transition temperature, reverse phase transformation takes place in phase-change material, emit heat, the working principle of phase-change material makes thermal protection system more heats when aircraft surface heats be trapped in the thermal protection system, reduce transmission, form heat sink structure, overcome the little shortcoming of homogeneous structure hot melt of not adding phase-change material to the aircraft body.
Description of drawings
Fig. 1 is the structural representation of the workpiece A in the embodiment one.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the combination in any between each embodiment.
Embodiment one: the preparation method of present embodiment multilayer insulation material is prepared according to following steps: one, with fibre cloth, the heat insulation felt that 3～5mm is thick, the heat insulation felt that 3～10mm is thick, heat insulation felt and fleece that 10～50mm is thick bond together successively, obtain workpiece A, wherein the heat insulation felt that fibre cloth and 3～5mm are thick bonds with the aluminium base high-temperature agglomerant of silicic acid, the heat insulation felt that the heat insulation felt that 3～5mm is thick and 3～10mm are thick bonds with the thick modified binder that contains the Al-Si alloy of 1.5～2.5mm, the thick heat insulation felt of the heat insulation felt that 3～10mm is thick and 10～50mm bonds with the modified binder of the thick contains sodium sulfate of 1.5～2.5mm, and heat insulation felt that 10～50mm is thick and fleece bond with the aluminium base high-temperature agglomerant of silicic acid; Two, workpiece A is put into fume hood 30～60h, again workpiece A is put into blowing-type baking oven internal heating curing 45～75h of 60～65 ℃, fleece one side with workpiece A is heated to 1000～1100 ℃ at last, and fibre cloth one side is heated to 90～110 ℃, insulation 5～7h; Three, the workpiece A after step 2 is handled puts into High Temperature Furnaces and heat-treats, and is under the condition of 3～10 ℃/min at heating rate, and the temperature of High Temperature Furnaces is risen to 600～800 ℃, and 0.5～8h is handled in insulation; Four, the fibre cloth surface-coated one deck of workpiece A after step 3 is handled contains the resin of polyurethane encapsulation n-octadecane microcapsule, promptly obtain multilayer insulation material, the making method that wherein contains the modified binder of the modified binder of Al-Si alloy and contains sodium sulfate in the step 1 is: aluminium oxide is encapsulated Al-Si alloy and aluminium oxide encapsulation sodium sulfate pour into respectively in the aluminium base high-temperature agglomerant of silicic acid and mix, promptly obtain containing the modified binder of Al-Si alloy and the modified binder of contains sodium sulfate, wherein the mass ratio of aluminium oxide encapsulation Al-Si alloy and high-temperature agglomerant is 35～45: 2, and the mass ratio of aluminium oxide encapsulation sodium sulfate and high-temperature agglomerant is 35～45: 2.
The making method of aluminium oxide encapsulation Al-Si alloy is as follows in the present embodiment step 1: the Al-Si alloy of 5～10 microns sizes is put into High Temperature Furnaces handle 30min～2h, form the Al of 0.1～1 micron thickness on its surface
2O
3Shell promptly obtains aluminium oxide encapsulation Al-Si alloy; The making that aluminium oxide encapsulation Al-Si alloy can also be by the following method in the present embodiment step 1: with SiO
2, ZrO
2Or Al
2O
3Collosol and gel is a shell, is core with the Al-Si alloy, utilizes encapsulation technology promptly to make and obtains aluminium oxide encapsulation Al-Si alloy.
The making method of aluminium oxide encapsulation sodium sulfate is as follows in the present embodiment step 1: with Al
2O
3Collosol and gel is a shell, is core with sodium sulfate, utilizes encapsulation technology promptly to make and obtains aluminium oxide encapsulation sodium sulfate.
The burnishing surface of fender paper is as outermost in the present embodiment step 1.
It is for a part of solvent is slowly volatilized that the present embodiment step 2 is put into fume hood earlier, and reduces the contraction of glue-line as far as possible.
Solidify in the present embodiment step 2 is in order to make the fully dry sclerosis of sample.
The making method of resin that contains polyurethane encapsulation n-octadecane microcapsule in the present embodiment step 4 is as follows: with the polyurethane adhesive is cyst wall, with the n-octadecane capsule-core, promptly make the resin that obtains containing polyurethane encapsulation n-octadecane microcapsule by situ aggregation method.
The structural representation of workpiece A as shown in Figure 1 in the present embodiment step 1, wherein " 1 " represents fibre cloth, the thick heat insulation felt of " 2 " expression 3～5mm, " 3 " expression contains the modified binder of Al-Si alloy, the thick heat insulation felt of " 4 " expression 3～10mm, the modified binder of " 5 " expression contains sodium sulfate, the thick heat insulation felt of " 6 " expression 10～50mm, " 7 " expression fleece.
The present embodiment thermal-protective material can anti-800～1200 ℃ high temperature, warm area is prevented/heat insulation requirement in the satisfied 6～15Ma aircraft large size of energy, under identical service condition, compare with existing thermal-protective material, present embodiment prepares multilayer insulation material thickness and has reduced 20%～30%, has improved load.
Embodiment two: what present embodiment and embodiment one were different is: heat insulation felt is quartz fibre felt, alchlor fibrofelt or alumina silicate fiber felt in the step 1.Other step and parameter are identical with embodiment one.
Embodiment three: what present embodiment and embodiment one to two were different is: the mass ratio of aluminium oxide encapsulation Al-Si alloy and high-temperature agglomerant is 37～42: 2 in the making method of the modified binder that contains the Al-Si alloy of step 1.Other step and parameter are identical with embodiment one to two.
Embodiment four: what present embodiment and embodiment one to two were different is: the mass ratio of aluminium oxide encapsulation Al-Si alloy and high-temperature agglomerant is 37: 2 in the making method of the modified binder that contains the Al-Si alloy of step 1.Other step and parameter are identical with embodiment one to two.
Embodiment five: what present embodiment and embodiment one to two were different is: the mass ratio of aluminium oxide encapsulation Al-Si alloy and high-temperature agglomerant is 40: 2 in the making method of the modified binder that contains the Al-Si alloy of step 1.Other step and parameter are identical with embodiment one to two.
Embodiment six: what present embodiment and embodiment one to five were different is: the mass ratio of aluminium oxide encapsulation sodium sulfate and high-temperature agglomerant is 37～42: 2 in the modified binder making method of the contains sodium sulfate of step 1.Other step and parameter are identical with embodiment one to five.
Embodiment seven: what present embodiment and embodiment one to five were different is: the mass ratio of aluminium oxide encapsulation sodium sulfate and high-temperature agglomerant is 40: 2 in the modified binder making method of the contains sodium sulfate of step 1.Other step and parameter are identical with embodiment one to five.
Embodiment eight: what present embodiment and embodiment one to seven were different is: in the step 2 workpiece A is put into fume hood 40～50h.Other step and parameter are identical with embodiment one to seven.
Embodiment nine: what present embodiment and embodiment one to eight were different is: in the step 2 workpiece A put into blowing-type baking oven internal heating curing 50～60h of 62～64 ℃.Other step and parameter are identical with embodiment one to eight.
Embodiment ten: what present embodiment and embodiment one to nine were different is: fleece one side with workpiece A in the step 2 is heated to 1020～1080 ℃, and fibre cloth one side is heated to 95～105 ℃, insulation 5.2～6.8h.Other step and parameter are identical with embodiment one to nine.
Embodiment 11: the preparation method of present embodiment multilayer insulation material is prepared according to following steps: one, with fibre cloth, the heat insulation felt that 4mm is thick, the heat insulation felt that 6mm is thick, heat insulation felt and fleece that 20mm is thick bond together successively, obtain workpiece A, wherein the heat insulation felt that fibre cloth and 4mm are thick bonds with the aluminium base high-temperature agglomerant of silicic acid, the heat insulation felt that heat insulation felt that 4mm is thick and 6mm are thick bonds with the thick modified binder that contains the Al-Si alloy of 2mm, the thick heat insulation felt of heat insulation felt that 6mm is thick and 20mm bonds with the modified binder of the thick contains sodium sulfate of 2mm, and heat insulation felt that 20mm is thick and fleece bond with the aluminium base high-temperature agglomerant of silicic acid; Two, workpiece A is put into fume hood 5h, workpiece A is put into 62 ℃ blowing-type baking oven internal heating curing 60h again, fleece one side with workpiece A is heated to 1050 ℃ at last, and fibre cloth one side is heated to 100 ℃, insulation 6h; Three, the workpiece A after step 2 is handled puts into High Temperature Furnaces and heat-treats, and is under the condition of 5 ℃/min at heating rate, and the temperature of High Temperature Furnaces is risen to 700 ℃, and 5h is handled in insulation; Four, the fibre cloth surface-coated one deck of workpiece A after step 3 is handled contains the resin of polyurethane encapsulation n-octadecane microcapsule, promptly obtain multilayer insulation material, the making method that wherein contains the modified binder of the modified binder of Al-Si alloy and contains sodium sulfate in the step 1 is: aluminium oxide is encapsulated Al-Si alloy and aluminium oxide encapsulation sodium sulfate pour into respectively in the aluminium base high-temperature agglomerant of silicic acid and mix, promptly obtain containing the modified binder of Al-Si alloy and the modified binder of contains sodium sulfate, wherein the mass ratio of aluminium oxide encapsulation Al-Si alloy and high-temperature agglomerant is 40: 2, and the mass ratio of aluminium oxide encapsulation sodium sulfate and high-temperature agglomerant is 40: 2.
The making method of aluminium oxide encapsulation Al-Si alloy is as follows in the present embodiment step 1: the Al-Si alloy of 5～10 microns sizes is put into High Temperature Furnaces handle 30min～2h, form the Al of 0.1～1 micron thickness on its surface
2O
3Shell promptly obtains aluminium oxide encapsulation Al-Si alloy.
The making method of aluminium oxide encapsulation sodium sulfate is as follows in the present embodiment step 1: with Al
2O
3Collosol and gel is a shell, is core with sodium sulfate, utilizes encapsulation technology promptly to make and obtains aluminium oxide encapsulation sodium sulfate.
The burnishing surface of fender paper is as outermost in the present embodiment step 1.
It is for a part of solvent is slowly volatilized that the present embodiment step 2 is put into fume hood earlier, and reduces the contraction of glue-line as far as possible.
Solidify in the present embodiment step 2 is in order to make the fully dry sclerosis of sample.
The making method of resin that contains polyurethane encapsulation n-octadecane microcapsule in the present embodiment step 4 is as follows: with the polyurethane adhesive is cyst wall, with the n-octadecane capsule-core, promptly make the resin that obtains containing polyurethane encapsulation n-octadecane microcapsule by situ aggregation method.
The present embodiment thermal-protective material can anti-1100 ℃ high temperature, warm area is prevented/heat insulation requirement in the satisfied 6～15Ma aircraft large size of energy, under identical service condition, compares with existing thermal-protective material, present embodiment prepares multilayer insulation material thickness and has reduced 25%, has improved load.
Claims (7)
1. the preparation method of a multilayer insulation material, the preparation method who it is characterized in that multilayer insulation material is prepared according to following steps: one, with fibre cloth, the heat insulation felt that 3～5mm is thick, the heat insulation felt that 3～10mm is thick, heat insulation felt and fleece that 10～50mm is thick bond together successively, obtain workpiece A, wherein the heat insulation felt that fibre cloth and 3～5mm are thick bonds with the aluminium base high-temperature agglomerant of silicic acid, the heat insulation felt that the heat insulation felt that 3～5mm is thick and 3～10mm are thick bonds with the thick modified binder that contains the Al-Si alloy of 1.5～2.5mm, the thick heat insulation felt of the heat insulation felt that 3～10mm is thick and 10～50mm bonds with the modified binder of the thick contains sodium sulfate of 1.5～2.5mm, and heat insulation felt that 10～50mm is thick and fleece bond with the aluminium base high-temperature agglomerant of silicic acid; Two, workpiece A is put into fume hood 30～60h, again workpiece A is put into blowing-type baking oven internal heating curing 45～75h of 60～65 ℃, fleece one side with workpiece A is heated to 1000～1100 ℃ at last, and fibre cloth one side is heated to 90～110 ℃, insulation 5～7h; Three, the workpiece A after step 2 is handled puts into High Temperature Furnaces and heat-treats, and is under the condition of 3～10 ℃/min at heating rate, and the temperature of High Temperature Furnaces is risen to 600～800 ℃, and 0.5～8h is handled in insulation; Four, the fibre cloth surface-coated one deck of workpiece A after step 3 is handled contains the resin of polyurethane encapsulation n-octadecane microcapsule, promptly obtain multilayer insulation material, the making method that wherein contains the modified binder of the modified binder of Al-Si alloy and contains sodium sulfate in the step 1 is: aluminium oxide is encapsulated Al-Si alloy and aluminium oxide encapsulation sodium sulfate pour into respectively in the aluminium base high-temperature agglomerant of silicic acid and mix, promptly obtain containing the modified binder of Al-Si alloy and the modified binder of contains sodium sulfate, wherein the mass ratio of aluminium oxide encapsulation Al-Si alloy and high-temperature agglomerant is 35～45: 2, and the mass ratio of aluminium oxide encapsulation sodium sulfate and high-temperature agglomerant is 35～45: 2.
2. the preparation method of a kind of multilayer insulation material according to claim 1 is characterized in that heat insulation felt is that quartz fibre felt, alchlor fibrofelt or alumina silicate fiber felt fender paper are dimension quartz fibre net, alumina fibre net or aluminum silicate fiber net in the step 1.
3. the preparation method of a kind of multilayer insulation material according to claim 1 and 2 is characterized in that the mass ratio of aluminium oxide encapsulation Al-Si alloy and high-temperature agglomerant is 37～42: 2 in the making method of the modified binder that contains the Al-Si alloy of step 1.
4. the preparation method of a kind of multilayer insulation material according to claim 3 is characterized in that the mass ratio of aluminium oxide encapsulation sodium sulfate and high-temperature agglomerant is 37～42: 2 in the modified binder making method of contains sodium sulfate of step 1.
5. according to the preparation method of claim 1,2 or 4 described a kind of multilayer insulation materials, it is characterized in that in the step 2 workpiece A being put into fume hood 40～50h.
6. the preparation method of a kind of multilayer insulation material according to claim 5 is characterized in that in the step 2 workpiece A put into blowing-type baking oven internal heating curing 50～60h of 62～64 ℃.
7. according to the preparation method of claim 1,2,4 or 6 described a kind of multilayer insulation materials, it is characterized in that in the step 2 fleece one side of workpiece A is heated to 1020～1080 ℃, fibre cloth one side is heated to 95～105 ℃, insulation 5.2～6.8h.
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| CN200910312070XA CN101725795B (en) | 2009-12-23 | 2009-12-23 | Method for preparing multilayer heat insulation material |
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|---|---|---|---|
| CN200910312070XA CN101725795B (en) | 2009-12-23 | 2009-12-23 | Method for preparing multilayer heat insulation material |
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| CN101725795B CN101725795B (en) | 2011-07-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181296A (en) * | 2011-02-12 | 2011-09-14 | 上海贝威科技有限公司 | Heat-insulation antiflaming moistureproof material used for aircraft black box and preparation method thereof |
| CN103321051A (en) * | 2013-07-01 | 2013-09-25 | 燕山大学 | Preparation method of modified aluminium silicate ceramic fiber blanket for microwave expansion |
| CN103600522A (en) * | 2013-11-21 | 2014-02-26 | 无锡合众信息科技有限公司 | High-temperature resistant composite thermal insulation plate |
| CN104589724A (en) * | 2014-12-24 | 2015-05-06 | 中国建筑材料科学研究总院 | Stitched laminar flexible heat insulation material and preparation method thereof |
| CN105835495A (en) * | 2016-04-01 | 2016-08-10 | 湖南星鑫航天新材料股份有限公司 | Phase-change energy-storage flexible lightweight composite heat shroud and manufacturing method thereof |
| CN106520077A (en) * | 2016-09-10 | 2017-03-22 | 北京工业大学 | Phase change energy storage fiber/SiO2 aerogel composite felt and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302223C (en) * | 2004-05-12 | 2007-02-28 | 中国科学院理化技术研究所 | Polygenous flexible foamed heat-insulating layer for refrigeration and low-temperature device |
| CN201059405Y (en) * | 2007-07-16 | 2008-05-14 | 刘亚容 | Insulating material composite bed structure |
-
2009
- 2009-12-23 CN CN200910312070XA patent/CN101725795B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181296A (en) * | 2011-02-12 | 2011-09-14 | 上海贝威科技有限公司 | Heat-insulation antiflaming moistureproof material used for aircraft black box and preparation method thereof |
| CN103321051A (en) * | 2013-07-01 | 2013-09-25 | 燕山大学 | Preparation method of modified aluminium silicate ceramic fiber blanket for microwave expansion |
| CN103321051B (en) * | 2013-07-01 | 2014-11-26 | 燕山大学 | Preparation method of modified aluminium silicate ceramic fiber blanket for microwave expansion |
| CN103600522A (en) * | 2013-11-21 | 2014-02-26 | 无锡合众信息科技有限公司 | High-temperature resistant composite thermal insulation plate |
| CN103600522B (en) * | 2013-11-21 | 2015-07-22 | 无锡合众信息科技有限公司 | High-temperature resistant composite thermal insulation plate |
| CN104589724A (en) * | 2014-12-24 | 2015-05-06 | 中国建筑材料科学研究总院 | Stitched laminar flexible heat insulation material and preparation method thereof |
| CN105835495A (en) * | 2016-04-01 | 2016-08-10 | 湖南星鑫航天新材料股份有限公司 | Phase-change energy-storage flexible lightweight composite heat shroud and manufacturing method thereof |
| CN106520077A (en) * | 2016-09-10 | 2017-03-22 | 北京工业大学 | Phase change energy storage fiber/SiO2 aerogel composite felt and preparation method thereof |
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