CN103568385A - Heat-preservation hard composite carbon fiber felt and preparation method thereof - Google Patents

Heat-preservation hard composite carbon fiber felt and preparation method thereof Download PDF

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CN103568385A
CN103568385A CN201310489217.9A CN201310489217A CN103568385A CN 103568385 A CN103568385 A CN 103568385A CN 201310489217 A CN201310489217 A CN 201310489217A CN 103568385 A CN103568385 A CN 103568385A
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carbon fiber
felt
preparation
carbon fibre
hard heat
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CN103568385B (en
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伍孝
方进
罗松
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SICHUAN CHUANGYUE CARBON MATERIAL CO Ltd
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SICHUAN CHUANGYUE CARBON MATERIAL CO Ltd
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Abstract

The invention discloses a heat-preservation hard composite carbon fiber felt and a preparation method thereof. The preparation method comprises the following steps: forming a carbon fiber vacuum filtration layer, compositing a viscose-based carbon fiber felt or polyacrylonitrile-based carbon fiber felt, soaking a binding agent, needling, coating an upper surface processing layer, forming and postprocessing. The heat-preservation hard composite carbon fiber felt and the preparation method thereof provided by the invention have the advantages that the cost performance optimization design is carried out on a product according to a specific operating environment, the designability of the density of the whole felt is high, the density of an organic padding is relatively low, a high density fiber stacking structure which is corresponding to a high temperature surface is effectively formed, a heat insulation effect is excellent, a low density fiber stacking structure which is corresponding to a low temperature surface is effectively formed, and the cost is economic.

Description

Hard heat-insulated felt of a kind of carbon fiber reinforce plastic and preparation method thereof
Technical field
The present invention relates to hard heat-insulated felt of a kind of carbon fiber reinforce plastic and preparation method thereof.
Background technology
Carbon fiber hard insulation quilt is a kind of high-end insulation material being applied in the stoves such as sintering cemented carbide stove, monocrystaline silicon stove, vacuum smelting furnace, vacuum heat treatment furnace, gaseous phase deposition stove, and energy-saving and emission-reduction, improving product grade etc. are had to vital effect.
Carbon fiber hard insulation quilt in the market be take polyacrylonitrile-radical needled carbon fiber and viscose base carbon fibre insulation quilt as main, separately has a small amount of asphalt base carbon fiber insulation quilt and phenolic aldehyde base carbon fibre insulation material.Polyacrylonitrile carbon fiber felt low price, but easily fall slag, viscose base insulation quilt low temperature high insulating effect, but the resistance to ablation ability of high temperature and soak effect are not ideal, asphalt-based carbon fiber and phenolic aldehyde carbon-fiber high-temperature heat-insulating property and resistance to ablation ability are best, but expensive, and become felt effect poor.Thereby the general acupuncture carbon felt that the hard heat-insulated felt of polyacrylonitrile-radical mainly adopts forms with binding agent layering bonding, heat treatment, as patent CN102408254A, CN201010254699; The hard heat-insulated felt of asphaltic base has and adopts two kinds of Nomex laminate adhesive goods and the vacuum formings of chopped strand wet method, wherein wet method vacuum forming felt has the features such as density and structure designability are strong, easily process on surface, ash content is low, enjoy user to favor, but too high cost has limited its application space greatly.
Patent CN200810011610.6 discloses a kind of method of preparing hard carbon fibrous carbon felt, and ground carbon fiber fully mixes with binding agent and dispersant solution, through vacuum filtration or compression molding, then through not melting and carbonization treatment.The hard carbon fiber thermal insulation felt technique making is like this simple, but density adjustable range is little, especially can not prepare low density rigid insulation quilt.And due to dispersion complicated components, be difficult to realize the dispersion of the carbon fiber that draw ratio is larger, the actual following short fiber of 1mm of can only realizing disperses, easily carbon felt internal fiber Density Distribution is inhomogeneous, thereby the carbon skewness of insulation quilt inside after carbonization, makes product heat-proof quality and intensity limited.Asphalt-based carbon fiber acupuncture moulding is comparatively complicated and higher to raw material intensity and toughness reguirements, is unfavorable for cost optimization.
Summary of the invention
The object of the present invention is to provide a kind of reasonable in design, hard heat-insulated felt of carbon fiber reinforce plastic of the performance advantage of Cost optimization, outstanding variety classes carbon fiber and preparation method thereof.
The present invention makes full use of the high temperature resistant and anti-ablation advantage of asphalt base carbon fiber or phenolic aldehyde base carbon fibre, make full use of low temperature heat-insulating property advantage and the low-cost advantage of viscose carbon fiber, and Polyacrylonitrile carbon fiber felt low-cost advantage, the another surface erosion-resistant processing layer that increases, adopt whole three-decker, improve the quality of products and reduce material cost.
The present invention adopts the moulding of asphalt-based carbon fiber wet method vacuum filtration, can reduce costs, and can be adjusted fibre density and be realized graded by the mode of wet moulding.
A preparation method for the hard heat-insulated felt of carbon fiber reinforce plastic, comprises the following steps:
(1) carbon fiber vacuum filtration formable layer:
A. disperse: by 100 parts, the carbon fiber of isotropism length 2-30mm, dispersant 0.1-2 part, organic filler 0-40 part, anti-ablation filler 0-5 part, water 3000-5000 part stir, and form finely dispersed compound;
B. injection molding vacuum filtration: by finely dispersed compound, be cast in vacuum filtration mould, it is 10-50mm that suction filtration obtains thickness, density 0.06-0.30g/cm 3carbon fiber vacuum filtration layer;
(2) compound viscose base carbon fibre felt or polyacrylonitrile-based carbon fibre acupuncture carpet veneer:
A. according to required area, cutting density is 0.08-0.15g/cm 3, the viscose base carbon fibre felt of thickness 5-15mm or polyacrylonitrile-based carbon fibre Nomex;
B. on viscose base carbon fibre felt or polyacrylonitrile-based carbon fibre Nomex, brush phenolic resins or the furfural resin of solid content 25%-60%;
C. viscose base carbon fibre felt or polyacrylonitrile-based carbon fibre Nomex are coated with and are brushed with one of binding agent and face down and pack in vacuum filtration mould, itself and carbon fiber vacuum filtration layer are closely attached;
(3) soak binding agent, acupuncture and apply upper surface processing layer:
A. prepare phenolic resins or furfural resin 500-1000 part of solid content 1%-25%, carbon black 0.01-5 part, the following coke powder 0.01-5 of 200 order part, the following anti-ablation filler 0.1-5 part of 200 orders, 0.1mm-10mm chopped carbon fiber 0.1-5 part, mixes;
B. above-mentioned preparation is pressed to 20kg/m 2-80kg/m 2add in vacuum filtration mould, material 1-30 minute in dipping vacuum filtration mould, adopt with effective length and be greater than 30mm simultaneously, the longitudinal acupuncture of needle plate of planting that diameter is greater than 2.67mm pricker penetrates each layer of felt, needling density 5000-25000 pin/square meter, makes the chopped carbon fiber adding run through as much as possible whole three-decker, and the longitudinal arrangement that increases each fiber of interlayer is with interspersed, and then carry out secondary suction filtration, on the surface of material, form the upper surface processing layer of the thick densification of 0.1-1mm;
(4) moulding: after the demoulding, pressurization 0.001-0.2MPa is also heated to 100-300 ℃ of curing molding, makes curing molding felt;
(5) post processing: under vacuum or inert gas environment, curing molding felt is heated to 600-1500 ℃ of charing, is heated to 1800-3000 ℃ of graphitization, make the hard heat-insulated felt of carbon fiber reinforce plastic.
In step (1), described carbon fiber is asphalt base carbon fiber, polyacrylonitrile-based carbon fibre, one or more mixing compositions of phenolic aldehyde base carbon fibre.
In step (1), described carbon fiber also asphaltic base fusion-free fibre and asphalt base carbon fiber in the mixture of the ratio of 1:1-100.
In step (1), described dispersant is that one or more mixing wherein of methylcellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethylcellulose, polyacrylamide or polyvinyl alcohol form.
In step (1), described organic filler is organic fiber, organic granular, one or more of polyvinyl alcohol, pitch, polyethylene, PP GRANULES or fiber, consists of.
In step (1), described anti-ablation filler is one or more compositions in coke powder, carborundum, boron nitride, silicon nitride, boron carbide.
In step (2), the sandwich construction that described viscose base carbon fibre felt or polyacrylonitrile-based carbon fibre Nomex can also be bonded together by one or both some layers that form of viscose base carbon fibre felt, polyacrylonitrile-based carbon fibre Nomex is replaced.
After step (5), can also, on the surface of the hard heat-insulated felt of carbon fiber reinforce plastic, with phenolic resins, paste charcoal cloth, carbon paper or flexible graphite paper paste layer.
A hard heat-insulated felt, is prepared by the preparation method of the hard heat-insulated felt of above-mentioned a kind of carbon fiber reinforce plastic.
The present invention has following beneficial effect:
Structure after optimization and design of material make carbon fiber hard insulation quilt in serviceability, designability is greatly improved in price, can carry out cost performance optimal design according to concrete environment for use completely.
General patent and technology adopt 2mm(with the following optimum of 1mm) following milled fiber, the technique that this patent adopts wet moulding and again adds binding agent and chopped carbon fiber acupuncture and secondary suction filtration, guarantee fiber dispersion and effectively avoided solvent type resin and the interference of emulsifying resin to dispersion, and can effectively longitudinally strengthen, improved greatly the intensity of product.
Wet moulding layer adopts organic filler, makes the minimum 0.06g/cm of reaching of wet moulding layer density in the situation that not destroying asphalt-based carbon fiber or the dispersion of phenolic aldehyde base carbon fibre 3,, make the density designability of whole felt high.And, organic filler density is lower, effectively formed the graded of wet moulding layer internal fiber stacked structure density, it is the corresponding high-density fiber stacked structure of high temperature face, insulation effect is more excellent, the corresponding low-density fibre stacked structure of low temperature face, cost is more economical, the actual user demand of more fitting.
The specific embodiment
Example 1:
(1) carbon fiber vacuum filtration formable layer: adopting isotropism length is that 100 parts of the chopped asphalt base carbon fibers of 5mm, 0.1 part of methylcellulose, 0.5 part of polyacrylamide, length are 25 parts of 5mm vinals, 1 part of 200 order boron nitride, 5000 parts, water, stir, be cast in particular manufacturing craft, suction filtration moulding makes the pre-felt of asphalt-based carbon fiber that thickness is 38mm.
(2) compound viscose base carbon fibre carpet veneer: cutting mould is equal to the thick density 0.12g/cm of big or small 5mm 3viscose base carbon fibre felt, brushes 50% phenolic resins, packs mould into and is fitted in preformed asphalt base carbon fiber felt surface.
(3) soak binding agent, acupuncture and apply upper surface processing layer: 500 parts, the phenolic resins of preparation solid content 5%, 1 part of carbon black, 200 1 part of order coke powder, 200 5 parts of order boron nitride, length is the uniform dispersion of 2 parts of 0.1mm-6mm chopped carbon fibers, by 20kg/m 2add in mould, and adopt with effective length 33mm, the longitudinal acupuncture of needle plate of planting of diameter 2.67mm pricker penetrates each layer of felt, needling density 10000 pins/square meter, then secondary suction filtration.
(4) moulding: the demoulding, pressurization 0.01MPa is also heated to 150 ℃ of curing moldings.
(5) post processing: in inert nitrogen gas, curing molding felt is in 1000 ℃ of charings, 1800 ℃ of graphitizations in inert gas argon gas, and by rubbed finish, to obtain thickness be the hard heat-insulated felt of 40mm carbon fiber reinforce plastic, global density 0.15g/cm 3.
Example 2
(1) carbon fiber vacuum filtration formable layer: adopting isotropism length is that 20 parts of the chopped asphaltic base fusion-free fibres of 20mm, length are that 80 parts of the chopped asphalt base carbon fibers of 5mm, 0.1 part of hydroxyethylcellulose, 0.5 part of polyacrylamide, length are 20 parts of 5mm polypropylene fibres, 1 part of 200 order boron carbide, 4000 parts, water, stir, be cast in particular manufacturing craft, suction filtration moulding makes the pre-felt of the thick asphalt-based carbon fiber of 42mm, fiber accumulations density 0.08g/cm 3.
(2) compound viscose base carbon fibre felt and polyacrylonitrile-based carbon fibre acupuncture carpet veneer: cutting mould is equal to big or small thickness 10mm density 0.14g/cm 3polyacrylonitrile-based carbon fibre Nomex, brushes 60% phenolic resins, packs mould into and is fitted in preformed asphalt base carbon fiber felt surface.Cutting mould is equal to big or small thickness 5mm density 0.12g/cm again 3viscose base carbon fibre felt, brushes 60% phenolic resins, packs mould into and is fitted in polyacrylonitrile-based carbon fibre Nomex surface.
(3) soak binding agent, acupuncture and apply upper surface processing layer: 500 parts, the phenolic resins of preparation solid content 7%, 1 part of carbon black, 200 1 part of order coke powder, 200 3 parts of order boron carbides, length is the uniform dispersion of 2 parts of 0.1mm-6mm chopped carbon fibers, by 20kg/m 2add in mould, and adopt with effective length 40mm, the longitudinal acupuncture of needle plate of planting of diameter 3mm pricker penetrates each layer of felt, needling density 5000 pins/square meter, then secondary suction filtration.
(4) moulding: the demoulding, pressurization 0.01MPa is also heated to 200 ℃ of curing moldings.
(5) post processing: in inert nitrogen gas, curing molding felt is in 1000 ℃ of charings, 1800 ℃ of graphitizations in inert gas argon gas, and by rubbed finish, to obtain thickness be the hard heat-insulated felt of 52mm carbon fiber reinforce plastic, global density 0.155g/cm 3.
Example 3
(1) carbon fiber vacuum filtration formable layer: adopting isotropism length is that 10 parts of the chopped asphaltic base fusion-free fibres of 10mm, length are 90 parts of the chopped asphalt base carbon fibers of 3mm, 0.2 part of carboxymethyl cellulose, 0.5 part of polyacrylamide, 10 parts of 80 order polyethylene particles, 1 part of 200 order boron carbide, 4000 parts, water, stir, be cast in particular manufacturing craft, suction filtration moulding makes the pre-felt of thickness 40mm asphalt base carbon fiber, fiber accumulations density 0.09g/cm 3.
(2) compound viscose base carbon fibre felt and polyacrylonitrile-based carbon fibre acupuncture carpet veneer: cutting mould is equal to big or small thickness 5mm density 0.14g/cm 3polyacrylonitrile-based carbon fibre fibrofelt, brushes 45% phenolic resins, packs mould into and is fitted in preformed asphalt base carbon fiber felt surface.Cutting mould is equal to big or small thickness 10mm density 0.12g/cm again 3viscose base carbon fibre felt, brushes 60% phenolic resins, packs mould into and is fitted in polyacrylonitrile-based carbon fibre Nomex surface.
(3) soak binding agent, acupuncture and apply upper surface processing layer: 500 parts, the phenolic resins of preparation solid content 10%, 0.5 part of carbon black, 200 0.5 part of order coke powder, 200 2 parts of order boron carbides, length is the uniform dispersion of 1 part of 0.1mm-6mm chopped carbon fiber, by 30kg/m 2add in mould, and adopt with effective length 40mm, the longitudinal acupuncture of needle plate of planting of diameter 3mm pricker penetrates each layer of felt, needling density 5000 pins/square meter, then secondary suction filtration.
(4) moulding: the demoulding, pressurization 0.005MPa is also heated to 150 ℃ of curing moldings.
(5) post processing: in the nitrogen of inert gas, curing molding felt is in 1000 ℃ of charings, 1800 ℃ of graphitizations in the argon gas of inert gas, and obtain the hard heat-insulated felt of thickness 50mm carbon fiber reinforce plastic, global density 0.145g/cm by rubbed finish 3.
Example 4
(1) carbon fiber vacuum filtration formable layer: adopt 100 parts of the chopped asphalt base carbon fibers of the long isotropism of 3mm, 0.1 part of carboxymethyl cellulose, 0.5 part of polyacrylamide, 5 parts of the long vinals of 5mm, 4000 parts, water, stir, be cast in particular manufacturing craft, suction filtration moulding makes the pre-felt of the thick asphalt-based carbon fiber of 35mm, fiber accumulations density 0.11g/cm 3.
(2) compound viscose base carbon fibre carpet veneer: cutting mould is equal to big or small thickness 10mm density 0.12g/cm 3viscose base carbon fibre felt, brushes 40% phenolic resins, packs mould into and is fitted in preformed asphalt base carbon fiber felt surface.
(3) soak binding agent, acupuncture and apply upper surface processing layer: 500 parts, the phenolic resins of preparation solid content 15%, 0.5 part of carbon black, 200 0.5 part of order coke powder, 200 2 parts of order boron carbides, length is the uniform dispersion of 3 parts of 3mm-6mm chopped carbon fibers, by 80kg/m 2add in mould, and adopt with effective length 33mm, the longitudinal acupuncture of needle plate of planting of diameter 2.67mm pricker penetrates each layer of felt, needling density 15000 pins/square meter, then secondary suction filtration.
(4) moulding: the demoulding, pressurization 0.1MPa is also heated to 150 ℃ of curing moldings.
(5) post processing: in the nitrogen of inert gas, curing molding felt is in 1000 ℃ of charings, 1800 ℃ of graphitizations in the argon gas of inert gas, and by rubbed finish, to obtain thickness be the hard heat-insulated felt of 42mm carbon fiber reinforce plastic, global density 0.18g/cm 3.
Example 5
(1) carbon fiber vacuum filtration formable layer: adopt 100 parts of the chopped asphalt base carbon fibers of the long isotropism of 3mm, 0.1 part of carboxymethyl cellulose, 0.5 part of polyacrylamide, length 0.1mm to grind 5 parts of pitch fibers (waste silk), 1 part of 200 order boron carbide, 4000 parts, water, stir, be cast in particular manufacturing craft, suction filtration moulding makes the pre-felt of the thick asphalt-based carbon fiber of 35mm, fiber accumulations density 0.12g/cm 3.
(2) compound viscose base carbon fibre carpet veneer: cutting mould is equal to big or small thickness 10mm density 0.12g/cm 3two, viscose base carbon fibre felt, brushes 40% phenolic resins, packs successively mould into.
(3) soak binding agent, acupuncture and apply upper surface processing layer: 500 parts, the phenolic resins of preparation solid content 15%, 0.5 part of carbon black, 200 0.5 part of order coke powder, 200 2 parts of order boron carbides, length is the uniform dispersion of 3 parts of 3mm-6mm chopped carbon fibers, by 60kg/m 2add in mould, and adopt with effective length 40mm, the longitudinal acupuncture of needle plate of planting of diameter 3mm pricker penetrates each layer of felt, needling density 15000 pins/square meter, then secondary suction filtration.
(4) moulding: the demoulding, pressurization 0.1MPa is also heated to 150 ℃ of curing moldings.
(5) post processing: in the nitrogen of inert gas, curing molding felt is in 1000 ℃ of charings, 1800 ℃ of graphitizations in the argon gas of inert gas, and obtain the hard heat-insulated felt of the thick carbon fiber reinforce plastic of 50mm, global density 0.175g/cm by rubbed finish 3.
Example 6
(1) carbon fiber vacuum filtration formable layer: adopt 100 parts of the long phenolic aldehyde base carbon fibres of 5mm, 0.1 part of carboxymethyl cellulose, 0.5 part of polyacrylamide, 4000 parts, water, stir, be cast in particular manufacturing craft, suction filtration moulding makes the pre-felt of the thick phenolic aldehyde base carbon fibre of 35mm, fiber accumulations density 0.11g/cm 3.
(2) composite polypropylene itrile group carbon fiber Nomex and viscose base carbon fibre carpet veneer: cutting mould is equal to big or small thickness 10mm density 0.14g/cm 3polyacrylonitrile-based carbon fibre Nomex, brushes 40% phenolic resins, packs mould into and is fitted in preformed phenolic aldehyde base carbon fibre felt surface.Cutting mould is equal to big or small thickness 5mm density 0.12g/cm again 3viscose base carbon fibre felt, brushes 40% phenolic resins, packs mould into and is fitted in polyacrylonitrile-based carbon fibre Nomex surface.
(3) soak binding agent, acupuncture and apply upper surface processing layer: 500 parts, the phenolic resins of preparation solid content 15%, 0.5 part of carbon black, 200 0.5 part of order coke powder, 200 2 parts of order boron carbides, length is the uniform dispersion of 3 parts of 6mm-10mm chopped carbon fibers, by 50kg/m 2add in mould, and adopt with effective length 33mm, the longitudinal acupuncture of needle plate of planting of diameter 2.67mm pricker penetrates each layer of felt, needling density 25000 pins/square meter, then secondary suction filtration.
(4) moulding: the demoulding, pressurization 0.1MPa is also heated to 150 ℃ of curing moldings.
(5) post processing: in the nitrogen of inert gas, curing molding felt is in 1000 ℃ of charings, 1800 ℃ of graphitizations in the argon gas of inert gas, and obtain the hard heat-insulated felt of the thick carbon fiber reinforce plastic of 47mm, global density 0.18g/cm by rubbed finish 3.

Claims (9)

1. a preparation method for the hard heat-insulated felt of carbon fiber reinforce plastic, is characterized in that comprising the following steps:
(1) carbon fiber vacuum filtration formable layer:
A. disperse: by 100 parts, the carbon fiber of length 2-30mm, dispersant 0.1-2 part, organic filler 0-40 part, anti-ablation filler 0-5 part, water 3000-5000 part stir, and form finely dispersed compound;
B. injection molding vacuum filtration: by finely dispersed compound, be cast in vacuum filtration mould, it is 10-50mm that suction filtration obtains thickness, density 0.06-0.30g/cm 3carbon fiber vacuum filtration layer;
(2) compound viscose base carbon fibre felt or polyacrylonitrile-based carbon fibre acupuncture carpet veneer:
A. cutting density is 0.08-0.15g/cm 3, the viscose base carbon fibre felt of thickness 5-15mm or polyacrylonitrile-based carbon fibre Nomex;
B. on viscose base carbon fibre felt or polyacrylonitrile-based carbon fibre Nomex, brush phenolic resins or the furfural resin of solid content 25%-60%;
C. viscose base carbon fibre felt or polyacrylonitrile-based carbon fibre Nomex are coated with and are brushed with one of binding agent and face down and pack in vacuum filtration mould, itself and carbon fiber vacuum filtration layer are closely attached;
(3) soak binding agent, acupuncture and apply upper surface processing layer:
A. prepare phenolic resins or furfural resin 500-1000 part of solid content 1%-25%, carbon black 0.01-5 part, the following coke powder 0.01-5 of 200 order part, the following anti-ablation filler 0.1-5 part of 200 orders, length is 0.1mm-10mm chopped carbon fiber 0.1-5 part, mixes;
B. above-mentioned preparation is pressed to 20kg/m 2-80kg/m 2add in vacuum filtration mould, material 1-30 minute in dipping vacuum filtration mould, and employing is greater than 30mm with effective length, the longitudinal acupuncture of needle plate of planting that diameter is greater than 2.67mm pricker penetrates each layer of felt, needling density 5000-25000 pin/square meter, then secondary suction filtration, forms the upper surface processing layer of the thick densification of 0.1-1mm on the surface of material;
(4) moulding: after the demoulding, pressurization 0.001-0.2MPa is also heated to 100-300 ℃ of curing molding, makes curing molding felt;
(5) post processing: under vacuum or inert gas environment, curing molding felt is heated to 600-1500 ℃ of charing, is heated to 1800-3000 ℃ of graphitization, make the hard heat-insulated felt of carbon fiber reinforce plastic.
2. the preparation method of the hard heat-insulated felt of a kind of carbon fiber reinforce plastic according to claim 1, is characterized in that: in step (1), described carbon fiber is asphalt base carbon fiber, polyacrylonitrile-based carbon fibre, one or more mixing compositions of phenolic aldehyde base carbon fibre.
3. the preparation method of the hard heat-insulated felt of a kind of carbon fiber reinforce plastic according to claim 1, is characterized in that: in step (1), described carbon fiber is that asphaltic base fusion-free fibre and asphalt base carbon fiber are in the mixture of the ratio of 1:1-100.
4. the preparation method of the hard heat-insulated felt of a kind of carbon fiber reinforce plastic according to claim 1, it is characterized in that: in step (1), described dispersant is that one or more mixing wherein of methylcellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethylcellulose, polyacrylamide or polyvinyl alcohol form.
5. the preparation method of the hard heat-insulated felt of a kind of carbon fiber reinforce plastic according to claim 1; it is characterized in that: in step (1); described organic filler is organic fiber, organic granular, one or more of polyvinyl alcohol, pitch, polyethylene, PP GRANULES or fiber, consists of.
6. the preparation method of the hard heat-insulated felt of a kind of carbon fiber reinforce plastic according to claim 1, is characterized in that: in step (1), described anti-ablation filler is one or more compositions in coke powder, carborundum, boron nitride, silicon nitride, boron carbide.
7. the preparation method of the hard heat-insulated felt of a kind of carbon fiber reinforce plastic according to claim 1, it is characterized in that: in step (2), described viscose base carbon fibre felt or polyacrylonitrile-based carbon fibre Nomex are replaced by one or both some layers of sandwich constructions being bonded together that form of viscose base carbon fibre felt, polyacrylonitrile-based carbon fibre Nomex.
8. the preparation method of the hard heat-insulated felt of a kind of carbon fiber reinforce plastic according to claim 1, is characterized in that: after step (5), on the surface of the hard heat-insulated felt of carbon fiber reinforce plastic, with phenolic resins, paste charcoal cloth, carbon paper or flexible graphite paper paste layer.
9. the hard heat-insulated felt of carbon fiber reinforce plastic, is characterized in that: prepared by the preparation method by the hard heat-insulated felt of a kind of carbon fiber reinforce plastic claimed in claim 1.
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CN115418197A (en) * 2022-08-31 2022-12-02 湖南大学 Preparation method of phase-change energy storage material
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CN109763209A (en) * 2019-01-31 2019-05-17 山东瑞城宇航碳材料有限公司 A method of manufacture high thermal conductivity asphalt base carbon fiber
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CN113235307A (en) * 2021-04-26 2021-08-10 因达孚先进材料(苏州)有限公司 Hard heat-preservation viscose-based graphite felt and preparation method thereof
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