CN104210151A - Surface-reinforced high-temperature-resistant nanometer thermal insulation material and preparation method thereof - Google Patents
Surface-reinforced high-temperature-resistant nanometer thermal insulation material and preparation method thereof Download PDFInfo
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- CN104210151A CN104210151A CN201410418771.2A CN201410418771A CN104210151A CN 104210151 A CN104210151 A CN 104210151A CN 201410418771 A CN201410418771 A CN 201410418771A CN 104210151 A CN104210151 A CN 104210151A
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Abstract
The invention relates to a surface-reinforced high-temperature-resistant nanometer thermal insulation material and a preparation method thereof. The surface-reinforced high-temperature-resistant nanometer thermal insulation material comprises an internal nanometer heat insulating material and a surface reinforcement layer, wherein the nanometer heat insulating material is a compression-molded particulate porous heat insulating material or a fiber-reinforced aerogel heat insulating material prepared by adopting a sol-gel method through supercritical drying, the surface reinforcement layer comprises a low-temperature surface and remaining surfaces, the remaining surfaces are made of inorganic fiber cloths. The surface-reinforced high-temperature-resistant nanometer thermal insulation material prepared by adopting the method has higher strength and integrity, the internal structure of the material is not damaged, the heat insulating property and the usage temperature of the material are not influenced; in addition, the size forming accuracy of the appearance formed by adopting the method is high, and the method is suitable for situations requiring higher accuracy on the size of the heat insulating material.
Description
Technical field
The present invention relates to heat-barrier material field, lower thermal conductivity high-temperature resistant nano hole heat-barrier material particularly relating to a kind of surface enhanced and preparation method thereof.
Background technology
Nano-pore heat-barrier material has the feature such as low-density, high-ratio surface sum high porosity, and the conduction of its solid thermal is extremely low; Its hole dimension is nanoscale (generally lower than 100nm), lower than the mean free path of air molecule, has extremely low air heat conduction; In addition, infrared radiation heat transfer is suppressed by adding the means such as opacifier.Therefore, nano-pore heat-barrier material has excellent heat-proof quality, is described as " ultra heat insulating material ".The preparation method of nanometer heat insulation material generally has two kinds, and one for raw material, fully mixes rear compression molding with nano-powder, opacifier, fortifying fibre and adhesive etc.; The another kind of aeroge for adopting sol-gal process to prepare through supercritical drying.
Nanometer heat insulation material heat-proof quality is excellent, but its architectural feature also determines the weakness such as its intensity is low, globality is poor, is difficult to apply in engineering.In order to improve the intensity of material under the prerequisite of reserved materials heat-proof quality to greatest extent, US Patent No. 3962014 discloses the preparation method of the nanoporous thermal insulation board of a kind of surface fiber cloth encapsulation.Ceramic fiber cloth is made sack by the method, and seal after the mixed material of particle, fortifying fibre is loaded sack, on press, finally apply pressure becomes thermal insulation board.The method can only sheet forming.For shaping non-tablet polymorphic structure, the material after pack is put into the frock containing " arch " or " reverse V-shaped " upper and lower mould by US6399000, and mold pressing is prepared " arch " or the heat insulation block of " reverse V-shaped ".Said method can the high-temperature resistant nano heat-barrier material of preparation table surface strengthening, and the region contacted with upper and lower mould can size be shaping on request, but other surface cannot accurate dimension shaping.
Summary of the invention
The object of the invention is to the above-mentioned deficiency overcoming prior art, high-temperature resistant nano heat-barrier material that a kind of surface peening is provided and preparation method thereof, the nanometer heat insulation material of the surface peening adopting the method to prepare has higher intensity and globality, the internal structure of material is not destroyed, heat-proof quality and the serviceability temperature of material are unaffected, meanwhile, the method appearance and size formed precision is high, is applicable to the occasion higher to heat-barrier material dimension precision requirement.
Above-mentioned purpose of the present invention is mainly achieved by following technical solution:
A kind of high-temperature resistant nano heat-barrier material of surface peening, comprise inner nanometer heat insulation material and surface strengthen layer, described nanometer heat insulation material is particle porous heat-barrier material or fibre-reinforced aerogel heat-barrier material, described surface strengthen layer comprises a low temperature face and removes all the other each of low temperature face, wherein low temperature face is that inorfil cloth strengthens resin, and all the other each is inorfil cloth.
In the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, particle porous heat-barrier material is for raw material with nano-powder, opacifier and chopped strand, the nanometer heat insulation material of compression molding after mixing, described fibre-reinforced aerogel heat-barrier material is the nanometer heat insulation material adopting sol-gel process to prepare through supercritical drying.
In the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, particle porous heat-barrier material is SiO
2nano particle porous heat insulation material or Al
2o
3nano particle porous heat insulation material, described fibre-reinforced aerogel heat-barrier material is that mullite fiber strengthens SiO
2aerogel composite or mullite fiber REINFORCED Al
2o
3aeroge.
In the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, the thickness of nanometer heat insulation material is 2 ~ 300mm, preferably 4 ~ 200mm, more preferably 6 ~ 150mm.
In the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, inorfil cloth is quartz fiber cloth or alumina fibre cloth, and the thickness of inorfil cloth is 0.1mm ~ 0.5mm, preferably 0.1 ~ 0.3mm.
In the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, inorfil cloth is the pretreated inorfil cloth of colloidal sol, and wherein colloidal sol is Ludox or Alumina gel.
In the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, resin is selected from unsaturated polyester resin, epoxy resin, phenolic resins, polyurethane resin or polyimide resin.
A preparation method for the high-temperature resistant nano heat-barrier material of surface peening, comprises the steps:
Step (one), be prepared into mould, described mould comprises upper die and lower die and several limit moulds, the wherein shape of patrix and the upper surface mating shapes of nanometer heat insulation material to be prepared, the shape of counterdie and the underside shape of nanometer heat insulation material to be prepared match;
Step (two), heat-treat inorfil cloth, remove the lubricant on inorfil cloth surface, heat treatment temperature is 400 ~ 600 DEG C;
Step (three), sol solutions evenly to be brushed on the inorfil cloth after step (two) heat treatment, solidify at 40 ~ 200 DEG C of temperature;
Step (four), step (three) is solidified the inorfil cloth obtained be placed on the counterdie of mould, again nanometer heat insulation material is placed on inorfil cloth, inorfil cloth is cut out according to the profile of nanometer heat insulation material, inorfil cloth is wrapped in nanometer heat insulation material outer surface, concrete packaging method is: each limit prolongation obtained after being cut out by inorfil cloth covers nanometer heat insulation material upper surface after brushing resin one by one, each limit mould and counterdie are connected and fixed simultaneously, finally patrix are placed in nanometer heat insulation material upper surface;
Step (five), the mould of step (four) is placed in pressure forming machine, patrix compacting is put in place, and resin is solidified;
Step (six), be cooled to room temperature, after the demoulding, obtain the high-temperature resistant nano heat-barrier material of surface peening.
In the preparation method of the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, in step (two), heat treated temperature is 450 ~ 550 DEG C.
In the preparation method of the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, solidification temperature is 60 ~ 100 DEG C in step (three), and brush and the step of solidifying repetition 2 ~ 6 times.
In the preparation method of the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, inorfil cloth is cut out according to the profile of nanometer heat insulation material in step (four), a limit of the corresponding nanometer heat insulation material of prolongation on the every limit of inorfil cloth obtained, the prolongation of inorfil Bu Gebian is covered nanometer heat insulation material upper surface according to after adjacent order one by one brushing resin, wherein often cover one side of nanometer heat insulation material, the limit mould of the correspondence of described covering is fixedly connected with by screw with counterdie.
In the preparation method of the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, nanometer heat insulation material to be prepared is a columnar structured part, the patrix of described mould is the convex configuration of mating with described columnar concave surface, counterdie is the concave structure mated with described columnar convex surface, and limit mould is four.
In the preparation method of the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, four limit moulds comprise two, left and right limit mould and former and later two limit moulds, wherein two the limit moulds in left and right are fixedly connected on the end face of counterdie, and former and later two limit moulds are fixedly connected with two sidewalls of counterdie.
In the preparation method of the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, nanometer heat insulation material to be prepared is disk construction, and patrix and the counterdie of described mould are the planar structure of mating with described disk construction, and limit mould is four.
In the preparation method of the high-temperature resistant nano heat-barrier material of above-mentioned surface peening, in the encapsulation process of step (four) inorfil cloth, inorfil cloth is in tension.
The present invention compared with prior art has following beneficial effect:
(1), the present invention adopts inorfil cloth to be reinforcement, resin is bonding agent, intensive treatment is carried out to nanometer heat insulation material surface, under the prerequisite retaining nanometer heat insulation material heat-proof quality, significantly can improve surface quality and the bulk strength of material, prevent nanometer heat insulation material in transport, assemble and collide with in use procedure damage and breakage etc.;
(2), the present invention adopts Ludox or Alumina gel to carry out pretreatment to inorfil cloth, do not affect the serviceability temperature of fiber cloth, the present invention simultaneously only uses resin in the low temperature face of heat-barrier material, does not affect heat-proof quality and the serviceability temperature of nanometer heat insulation material; Adopt the monox nanometer heat-barrier material maximum operation (service) temperature of quartz fiber cloth strengthening can reach 1000 DEG C, adopt the aluminium oxide nano heat-barrier material maximum operation (service) temperature of alumina fibre cloth strengthening can reach 1200 DEG C; Substantially increase the scope of serviceability temperature;
(3), the present invention devises the preparation that particular manufacturing craft carries out nanometer heat insulation material, substantially increase the appearance and size formed precision of nanometer heat insulation material, can design accordingly mould according to the construction profile of nanometer heat insulation material simultaneously, realize the preparation of different structure profile high-temperature resistant nano heat-barrier material, the method has applied widely, method is versatile and flexible, be easy to the advantage that realizes, is applicable to the occasion higher to heat-barrier material dimension precision requirement simultaneously;
(4) the nanometer heat insulation material heat-proof quality of surface peening, adopting the inventive method to prepare is excellent, have higher intensity and globality, the internal structure of material is not destroyed, heat-proof quality and the serviceability temperature of material are unaffected, and serviceability temperature is high;
(5), the high-temperature resistant nano heat-barrier material of surface peening of the present invention is easy to use, directly can be bonded in the low temperature face of material and use position, or in sandwich, have wider range of application and stronger practicality.
Accompanying drawing explanation
Fig. 1 is the high-temperature resistant nano heat-barrier material schematic diagram of surface peening of the present invention;
Fig. 2 is the high-temperature resistant nano heat-barrier material preparation process schematic diagram 1 of surface peening of the present invention;
Fig. 3 is the high-temperature resistant nano heat-barrier material preparation process schematic diagram 2 of surface peening of the present invention;
Fig. 4 is the high-temperature resistant nano heat-barrier material preparation process schematic diagram 3 of surface peening of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Embodiment 1
Be illustrated in figure 1 the high-temperature resistant nano heat-barrier material schematic diagram of surface peening in the embodiment of the present invention 1, high-temperature resistant nano heat-barrier material to be prepared in the present embodiment is a columnar structured part, comprise inner nanometer heat insulation material core 1 and surface strengthen layer, nanometer heat insulation material is particle porous heat-barrier material or fibre-reinforced aerogel heat-barrier material, surface strengthen layer comprises a low temperature face 2 and all the other each faces 3 except low temperature face 2, wherein low temperature face is that inorfil cloth strengthens resin, and all the other each is inorfil cloth.
In the present embodiment:
Nanometer heat insulation material is the SiO of compression molding
2nano particle porous heat insulation material.Thickness is 30mm, and density is 0.35g/cm
3, thermal conductivity is 0.023W/mK.
Low temperature face 2 in surface strengthen layer is inorfil cloth enhancing resin, and all the other each faces 3 are inorfil cloth.Wherein inorfil cloth is the pretreated quartz fiber cloth of Ludox, and quartz fiber cloth thickness is 0.1mm, and resin is epoxy resin.
Nanometer heat insulation material to be prepared in the present embodiment is a columnar structured part, the patrix 7 of mould is the convex configuration of mating with columnar concave surface, counterdie 4 is the concave structure mated with columnar convex surface, and limit mould is four, is respectively left and right limit mould and forward and backward limit mould.
The preparation method of the high-temperature resistant nano heat-barrier material of surface peening in the present embodiment, comprises the following steps:
(1) shaping SiO
2nano particle porous heat insulation material, can refer to the open method of US Patent No. 4529532 and carries out.
(2) quartz fiber cloth heat treatment 4h at 500 DEG C, the lubricant on surface during to remove production;
(3) Ludox is evenly brushed in the quartz fiber cloth in step (2) after heat treatment, in 90 DEG C of baking ovens, solidify 4h, repeat brushing and solidify 3 times;
(4) the high-temperature resistant nano heat-barrier material preparation process schematic diagram 1 of surface peening of the present invention is illustrated in figure 2; Inorfil cloth 3 ' after Ludox infiltration process is placed on the counterdie 4 of mould, then by SiO
2nano particle porous heat insulation material 1 is placed on inorfil cloth 3 ', according to SiO
2the profile of nano particle porous heat insulation material 1 cuts out inorfil cloth 3 ', inorfil cloth 3 ' comprises four fiber cloth prolongations, be illustrated in figure 3 the high-temperature resistant nano heat-barrier material preparation process schematic diagram 2 of surface peening of the present invention, first right fiber cloth prolongation is covered nanometer heat insulation material 1 upper surface, namely extend to the part brushwork epoxy resin of nanometer heat insulation material 1 upper surface at inorfil cloth 3 ' after, be attached to nanometer heat insulation material 1 upper surface; While tension inorfil cloth 3 ', the right mould 5 pressed and be connected and fixed by the end face of screw and counterdie 4.
Nanometer heat insulation material 1 upper surface is covered by after rear side inorfil cloth 3 ' prolongation brushwork epoxy resin afterwards according to adjacent order, pressed by back mould 6 while tension inorfil cloth 3 ' and be connected and fixed by the sidewall of screw and counterdie 4, inorfil cloth runs into when cambered surface produces gauffer can be cut out.Same method is taked to process left side and front side inorfil cloth prolongation successively.
Be illustrated in figure 4 the high-temperature resistant nano heat-barrier material preparation process schematic diagram 3 of surface peening of the present invention, patrix 7 after all brushing resin covers heat-barrier material upper surface, is placed in nanometer heat insulation material 1 upper surface by each limit fiber cloth prolongation.
(5) mould containing nanometer heat insulation material in step (4) is placed in pressure forming machine, patrix 7 compacting is put in place, 120 DEG C of process 1h after 80 DEG C of process 4h; Epoxy resin is solidified completely.
(6) be cooled to room temperature, after the demoulding, obtain the high-temperature resistant nano heat-barrier material of surface peening.
The SiO of surface quartz/epoxy strengthening
2nanometer heat insulation material thermal conductivity is 0.024W/mK, is applicable to high temperature face≤1000 DEG C, the heat insulation occasion of low temperature face≤200 DEG C.
Embodiment 2
The shape of the high-temperature resistant nano heat-barrier material of surface peening in the present embodiment is with embodiment 1, comprise inner nanometer heat insulation material core 1 and surface strengthen layer, nanometer heat insulation material is particle porous heat-barrier material or fibre-reinforced aerogel heat-barrier material, surface strengthen layer comprises a low temperature face 2 and all the other each faces 3 except low temperature face 2, wherein low temperature face is that inorfil cloth strengthens resin, and all the other each is inorfil cloth.
In the present embodiment:
Nanometer heat insulation material is that mullite fiber strengthens SiO
2aerogel composite.Thickness is 35mm, and density is 0.2g/cm
3, thermal conductivity is 0.021W/mK.
Low temperature face 2 in surface strengthen layer is inorfil cloth enhancing resin, and all the other each faces 3 are inorfil cloth.Wherein inorfil cloth is the pretreated quartz fiber cloth of Ludox, and quartz fiber cloth thickness is 0.2mm; Resin is phenolic resins.
Nanometer heat insulation material to be prepared in the present embodiment is a columnar structured part, the patrix 7 of mould is the convex configuration of mating with columnar concave surface, counterdie 4 is the concave structure mated with columnar convex surface, and limit mould is four, is respectively left and right limit mould and forward and backward limit mould.
The preparation method of the high-temperature resistant nano heat-barrier material of surface peening in the present embodiment, comprises the following steps:
(1) shaping mullite fiber strengthens SiO
2aerogel composite, can carry out with reference to the open method of Chinese patent 200710034510.0.
(2) quartz fiber cloth heat treatment 3h at 450 DEG C, the lubricant on surface during to remove production;
(3) Ludox is evenly brushed in the quartz fiber cloth in step (2) after heat treatment, in 90 DEG C of baking ovens, solidify 4h, repeat brushing and solidify 2 times;
(4), with reference to the step (4) in embodiment 1;
(5) mould containing nanometer heat insulation material in step (4) is placed in pressure forming machine, patrix 7 compacting is put in place, 80 DEG C of process 1h, 120 DEG C of process 2h, 160 DEG C of process 2h; Phenolic resins is solidified completely;
(6) be cooled to room temperature, after the demoulding, obtain the high-temperature resistant nano heat-barrier material of surface peening.
The mullite fiber of surface quartz/phenolic aldehyde strengthening strengthens SiO
2aerogel composite thermal conductivity is 0.023W/mK, is applicable to high temperature face≤800 DEG C, the heat insulation occasion of low temperature face≤300 DEG C.
Embodiment 3
The shape of the high-temperature resistant nano heat-barrier material of surface peening in the present embodiment is with embodiment 1, comprise inner nanometer heat insulation material core 1 and surface strengthen layer, nanometer heat insulation material is particle porous heat-barrier material or fibre-reinforced aerogel heat-barrier material, surface strengthen layer comprises a low temperature face 2 and all the other each faces 3 except low temperature face 2, wherein low temperature face is that inorfil cloth strengthens resin, and all the other each is inorfil cloth.
In the present embodiment:
Nanometer heat insulation material is the Al of compression molding
2o
3nano particle porous heat insulation material.Thickness is 40mm, and density is 0.45g/cm
3, thermal conductivity is 0.03W/mK.
Low temperature face 2 in surface strengthen layer is inorfil cloth enhancing resin, and all the other each faces 3 are inorfil cloth.Wherein inorfil cloth is the pretreated alumina fibre cloth of Alumina gel, and alumina fibre cloth thickness is 0.3mm; Resin is polyimide resin.
Nanometer heat insulation material to be prepared in the present embodiment is a columnar structured part, the patrix 7 of mould is the convex configuration of mating with columnar concave surface, counterdie 4 is the concave structure mated with columnar convex surface, and limit mould is four, is respectively left and right limit mould and forward and backward limit mould.
The preparation method of the high-temperature resistant nano heat-barrier material of surface peening in the present embodiment, comprises the following steps:
(1) shaping Al
2o
3nano particle porous heat insulation material, can carry out with reference to the open method of US Patent No. 4529532.
(2) alumina fibre cloth heat treatment 4h at 550 DEG C, the lubricant on surface during to remove production;
(3) Alumina gel is evenly brushed on the alumina fibre cloth after heat treatment in step 2, in 120 DEG C of baking ovens, solidify 4h, repeat brushing and solidify 4 times;
(4) with reference to the step (4) in embodiment 1;
(5) mould containing nanometer heat insulation material in step (4) is placed in pressure forming machine, patrix 7 compacting is put in place, 370 DEG C of process 4h; Polyimide resin is solidified completely;
(6) be cooled to room temperature, after the demoulding, obtain the high-temperature resistant nano heat-barrier material of surface peening.
The Al of surface alumina oxide/polyimides strengthening
2o
3nanometer heat insulation material thermal conductivity is 0.033W/mK, is applicable to high temperature face≤1200 DEG C, the heat insulation occasion of low temperature face≤400 DEG C.
Embodiment 4
The high-temperature resistant nano heat-barrier material of surface peening in the present embodiment is disk construction (the present embodiment does not provide diagram), comprise inner nanometer heat insulation material core and surface strengthen layer, nanometer heat insulation material is particle porous heat-barrier material or fibre-reinforced aerogel heat-barrier material, surface strengthen layer comprises a low temperature face and except low temperature face 2 all the other each, wherein low temperature face is that inorfil cloth strengthens resin, and all the other each is inorfil cloth.
In the present embodiment:
Nanometer heat insulation material is mullite fiber REINFORCED Al
2o
3aeroge.Thickness is 20mm, and density is 0.25g/cm
3, thermal conductivity is 0.026W/mK.
Low temperature face in surface strengthen layer is that inorfil cloth strengthens resin, and all the other each is inorfil cloth.Wherein inorfil cloth is the pretreated alumina fibre cloth of Alumina gel, and alumina fibre cloth thickness is 0.3mm; Resin is epoxy resin.
Nanometer heat insulation material to be prepared in the present embodiment is disk construction, and patrix and the counterdie of mould are the planar structure of mating with this disk construction, and limit mould is four, is respectively left and right limit mould and forward and backward limit mould.
The preparation method of the high-temperature resistant nano heat-barrier material of surface peening in the present embodiment, comprises the following steps:
(1) shaping mullite fiber REINFORCED Al
2o
3aeroge, carries out with reference to the open method of Chinese patent 200710034510.0.
(2) alumina fibre cloth heat treatment 4h at 500 DEG C, the lubricant on surface during to remove production;
(3) Alumina gel is evenly brushed on the alumina fibre cloth in step (2) after heat treatment, in 100 DEG C of baking ovens, solidify 4h, repeat brushing and solidify 3 times;
(4) alumina fibre after Alumina gel infiltration process is arranged on the counterdie of mould, then by mullite fiber REINFORCED Al
2o
3aeroge is placed on inorfil cloth, according to mullite fiber REINFORCED Al
2o
3the profile of aeroge cuts out inorfil cloth, inorfil cloth comprises four fiber cloth prolongations, first right fiber cloth prolongation is covered nanometer heat insulation material upper surface, namely extend to the part brushwork epoxy resin of nanometer heat insulation material upper surface at inorfil cloth after, be attached to nanometer heat insulation material upper surface; The right mold pressing will be connected and fixed by the end face of screw and counterdie while tension inorfil cloth.
Cover nanometer heat insulation material upper surface by after rear side inorfil cloth prolongation brushwork epoxy resin afterwards, will back mold pressing be connected and fixed by the sidewall of screw and counterdie while tension inorfil cloth.Take on the left of same method process and front side inorfil cloth prolongation.
Patrix after all brushing resin covers heat-barrier material upper surface, is placed in nanometer heat insulation material upper surface by each limit fiber cloth prolongation.
(5) mould containing nanometer heat insulation material in step (4) is placed in pressure forming machine, patrix 7 compacting is put in place, 120 DEG C of process 1h after 80 DEG C of process 4h; Epoxy resin is solidified completely;
(6) be cooled to room temperature, after the demoulding, obtain the high-temperature resistant nano heat-barrier material of surface peening.
The mullite fiber REINFORCED Al of surface alumina oxide/epoxy strengthening
2o
3aeroge thermal conductivity is 0.028W/mK, is applicable to high temperature face≤1200 DEG C, the heat insulation occasion of low temperature face≤200 DEG C.
The above; be only the detailed description of the invention of the best of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
The content be not described in detail in description of the present invention belongs to the known technology of professional and technical personnel in the field.
Claims (16)
1. the high-temperature resistant nano heat-barrier material of a surface peening, it is characterized in that: comprise inner nanometer heat insulation material and surface strengthen layer, described nanometer heat insulation material is particle porous heat-barrier material or fibre-reinforced aerogel heat-barrier material, described surface strengthen layer comprises a low temperature face and removes all the other each of low temperature face, wherein low temperature face is that inorfil cloth strengthens resin, and all the other each is inorfil cloth.
2. the high-temperature resistant nano heat-barrier material of a kind of surface peening according to claim 1, it is characterized in that: described particle porous heat-barrier material is for raw material with nano-powder, opacifier and chopped strand, the nanometer heat insulation material of compression molding after mixing, described fibre-reinforced aerogel heat-barrier material is the nanometer heat insulation material adopting sol-gel process to prepare through supercritical drying.
3. the high-temperature resistant nano heat-barrier material of a kind of surface peening according to claim 2, is characterized in that: described particle porous heat-barrier material is SiO
2nano particle porous heat insulation material or Al
2o
3nano particle porous heat insulation material, described fibre-reinforced aerogel heat-barrier material is that mullite fiber strengthens SiO
2aerogel composite or mullite fiber REINFORCED Al
2o
3aeroge.
4. the high-temperature resistant nano heat-barrier material of a kind of surface peening according to the arbitrary claim of claims 1 to 3, is characterized in that: the thickness of described nanometer heat insulation material is 2 ~ 300mm, preferably 4 ~ 200mm, more preferably 6 ~ 150mm.
5. the high-temperature resistant nano heat-barrier material of a kind of surface peening according to claim 1, is characterized in that: described inorfil cloth is quartz fiber cloth or alumina fibre cloth, and the thickness of inorfil cloth is 0.1mm ~ 0.5mm, preferably 0.1 ~ 0.3mm.
6. the high-temperature resistant nano heat-barrier material of a kind of surface peening according to claim 1, is characterized in that: described inorfil cloth is the pretreated inorfil cloth of colloidal sol.
7. the high-temperature resistant nano heat-barrier material of a kind of surface peening according to claim 6, is characterized in that: described colloidal sol is Ludox or Alumina gel.
8. the high-temperature resistant nano heat-barrier material of a kind of surface peening according to claim 1, is characterized in that: described resin is selected from unsaturated polyester resin, epoxy resin, phenolic resins, polyurethane resin or polyimide resin.
9. the preparation method of the high-temperature resistant nano heat-barrier material of a kind of surface peening described in the arbitrary claim of claim 1 ~ 8, is characterized in that: comprise the steps:
Step (one), be prepared into mould, described mould comprises patrix (7), counterdie (4) and several limit moulds, the wherein shape of patrix (7) and the upper surface mating shapes of nanometer heat insulation material to be prepared, the shape of counterdie (4) and the underside shape of nanometer heat insulation material to be prepared match;
Step (two), heat-treat inorfil cloth, remove the lubricant on inorfil cloth surface, heat treatment temperature is 400 ~ 600 DEG C;
Step (three), sol solutions evenly to be brushed on the inorfil cloth after step (two) heat treatment, solidify at 40 ~ 200 DEG C of temperature;
Step (four), step (three) is solidified the inorfil cloth obtained to be placed on the counterdie (4) of mould, again nanometer heat insulation material is placed on inorfil cloth, inorfil cloth is cut out according to the profile of nanometer heat insulation material, inorfil cloth is wrapped in nanometer heat insulation material outer surface, concrete packaging method is: each limit prolongation obtained after being cut out by inorfil cloth covers nanometer heat insulation material upper surface after brushing resin one by one, each limit mould and counterdie (4) are connected and fixed simultaneously, finally patrix (7) is placed in nanometer heat insulation material upper surface,
Step (five), the mould of step (four) is placed in pressure forming machine, patrix (7) compacting is put in place, and resin is solidified;
Step (six), be cooled to room temperature, after the demoulding, obtain the high-temperature resistant nano heat-barrier material of surface peening.
10. require the preparation method of the high-temperature resistant nano heat-barrier material of a kind of surface peening described in 9 according to right, to it is characterized in that: in described step (two), heat treated temperature is 450 ~ 550 DEG C.
The preparation method of the high-temperature resistant nano heat-barrier material of 11. a kind of surface peenings according to claim 9, is characterized in that: solidification temperature is 60 ~ 100 DEG C in described step (three), and brush and the step of solidifying repetition 2 ~ 6 times.
The preparation method of the high-temperature resistant nano heat-barrier material of 12. a kind of surface peenings according to claim 9, it is characterized in that: in described step (four), cut out inorfil cloth according to the profile of nanometer heat insulation material, a limit of the corresponding nanometer heat insulation material of prolongation on the every limit of inorfil cloth obtained, the prolongation of inorfil Bu Gebian is covered nanometer heat insulation material upper surface according to after adjacent order one by one brushing resin, wherein often cover one side of nanometer heat insulation material, the limit mould of one side correspondence of described covering is fixedly connected with by screw with counterdie (4).
The preparation method of the high-temperature resistant nano heat-barrier material of 13. a kind of surface peenings according to the arbitrary claim of claim 9 ~ 12, it is characterized in that: described nanometer heat insulation material to be prepared is a columnar structured part, the patrix (7) of described mould is the convex configuration of mating with described columnar concave surface, counterdie (4) is the concave structure mated with described columnar convex surface, and limit mould is four.
The preparation method of the high-temperature resistant nano heat-barrier material of 14. a kind of surface peenings according to claim 13, it is characterized in that: described four limit moulds comprise two, left and right limit mould and former and later two limit moulds, wherein two the limit moulds in left and right are fixedly connected on the end face of counterdie (4), and former and later two limit moulds are fixedly connected with two sidewalls of counterdie (4).
The preparation method of the high-temperature resistant nano heat-barrier material of 15. a kind of surface peenings according to the arbitrary claim of claim 9 ~ 12, it is characterized in that: described nanometer heat insulation material to be prepared is disk construction, patrix and the counterdie of described mould are the planar structure of mating with described disk construction, and limit mould is four.
The preparation method of the high-temperature resistant nano heat-barrier material of 16. a kind of surface peenings according to the arbitrary claim of claim 9 ~ 12, it is characterized in that: in the encapsulation process of described step (four) inorfil cloth, inorfil cloth is in tension.
Priority Applications (1)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105965986A (en) * | 2016-04-29 | 2016-09-28 | 航天材料及工艺研究所 | High-temperature shape keeping heat insulation nano-material and preparation method thereof |
| CN109160777A (en) * | 2018-10-22 | 2019-01-08 | 泉州臻美智能科技有限公司 | A kind of fiber-reinforced composite heat-barrier material and preparation method thereof |
| JP2019032027A (en) * | 2017-08-08 | 2019-02-28 | 日東シンコー株式会社 | Heat insulation sheet |
| CN111018494A (en) * | 2019-12-20 | 2020-04-17 | 中国建筑材料科学研究总院有限公司 | Nano-pore heat insulation material and preparation method thereof |
| CN112341227A (en) * | 2020-10-23 | 2021-02-09 | 航天材料及工艺研究所 | High-temperature-resistant nano heat-insulating material and preparation method thereof |
| CN114506128A (en) * | 2022-01-22 | 2022-05-17 | 巩义市泛锐熠辉复合材料有限公司 | Light heat-insulating material and preparation method thereof |
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| BE1027045B1 (en) * | 2019-02-12 | 2020-09-10 | Onomax Bvba | MODIFIED REFRIGERATION CONTAINER FOR REFRIGERATED TRANSPORT BY MOTORCYCLE |
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| CN105965986A (en) * | 2016-04-29 | 2016-09-28 | 航天材料及工艺研究所 | High-temperature shape keeping heat insulation nano-material and preparation method thereof |
| JP2019032027A (en) * | 2017-08-08 | 2019-02-28 | 日東シンコー株式会社 | Heat insulation sheet |
| CN109160777A (en) * | 2018-10-22 | 2019-01-08 | 泉州臻美智能科技有限公司 | A kind of fiber-reinforced composite heat-barrier material and preparation method thereof |
| CN109160777B (en) * | 2018-10-22 | 2021-06-04 | 广东海龙建筑科技有限公司 | Fiber-reinforced composite heat-insulating material and preparation method thereof |
| CN111018494A (en) * | 2019-12-20 | 2020-04-17 | 中国建筑材料科学研究总院有限公司 | Nano-pore heat insulation material and preparation method thereof |
| CN112341227A (en) * | 2020-10-23 | 2021-02-09 | 航天材料及工艺研究所 | High-temperature-resistant nano heat-insulating material and preparation method thereof |
| CN114506128A (en) * | 2022-01-22 | 2022-05-17 | 巩义市泛锐熠辉复合材料有限公司 | Light heat-insulating material and preparation method thereof |
| CN114506128B (en) * | 2022-01-22 | 2023-12-01 | 巩义市泛锐熠辉复合材料有限公司 | Light heat insulation material and preparation method thereof |
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