CN113459606A - Carbon fiber reinforced carbon foam composite porous structure material and preparation method and application thereof - Google Patents
Carbon fiber reinforced carbon foam composite porous structure material and preparation method and application thereof Download PDFInfo
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- CN113459606A CN113459606A CN202110800883.4A CN202110800883A CN113459606A CN 113459606 A CN113459606 A CN 113459606A CN 202110800883 A CN202110800883 A CN 202110800883A CN 113459606 A CN113459606 A CN 113459606A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 241
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 172
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 172
- 239000002131 composite material Substances 0.000 title claims abstract description 70
- 239000000463 material Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000004744 fabric Substances 0.000 claims abstract description 70
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- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
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- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 14
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 7
- 238000010000 carbonizing Methods 0.000 claims description 7
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
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- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 5
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- 238000002791 soaking Methods 0.000 claims description 5
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- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 2
- 229920002261 Corn starch Polymers 0.000 claims description 2
- 239000012300 argon atmosphere Substances 0.000 claims description 2
- 210000003850 cellular structure Anatomy 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000008120 corn starch Substances 0.000 claims description 2
- 239000006249 magnetic particle Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229920003192 poly(bis maleimide) Polymers 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
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- 235000011837 pasties Nutrition 0.000 claims 1
- 239000011162 core material Substances 0.000 description 55
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
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- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/02—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning hubs or brake drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/08—Turning-machines characterised by the use of faceplates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/08—Turning-machines characterised by the use of faceplates
- B23B3/12—Turning-machines characterised by the use of faceplates with the faceplate vertical, i.e. face lathes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/26—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for simultaneously turning internal and external surfaces of a body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/08—Impregnating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a carbon fiber reinforced carbon foam composite porous structure material and a preparation method and application thereof. The preparation method comprises the following steps: connecting a plurality of pieces of carbon fiber cloth, and shaping by adopting shaping resin to form a carbon fiber honeycomb core structure; filling a carbon foam material into a carbon fiber honeycomb core structure, and shaping by using shaping resin, wherein the carbon foam material has a porous structure consisting of a three-dimensional network space structure; and packaging carbon fiber cloth serving as a honeycomb panel on the top end face and the bottom end face of the carbon fiber honeycomb core structure to obtain the carbon fiber reinforced carbon foam composite porous structure material. According to the invention, the biomass raw material is foamed and carbonized to obtain the carbon foam material as the honeycomb core filling material, and the carbon fiber cloth with light weight and high strength is used as the honeycomb core and the panel, so that the density of the honeycomb plate is reduced, the strength of the composite porous structure is obviously improved, the preparation of a novel light-weight and high-strength porous structure is realized, and the preparation method can be applied to the preparation of special square cabins.
Description
Technical Field
The invention relates to a preparation method of a honeycomb composite material, in particular to a carbon fiber reinforced carbon foam composite porous structure honeycomb material and a preparation method and application thereof, and belongs to the technical field of composite materials.
Background
The sandwich material with the honeycomb core material as the main body is widely applied to the fields of aerospace, automobiles and the like, and is used for improving the strength and the rigidity, enhancing the impact resistance, reducing the weight, and resisting flame and sound.
In the honeycomb core material, a paper honeycomb core, a carbon fiber paper honeycomb, a metal honeycomb core, and the like are common. The performance of the existing honeycomb core material has the advantages and the disadvantages, such as light weight of the paper honeycomb core and the carbon fiber paper honeycomb, general strength and hardness, low specific strength and poor impact resistance effect; the metal honeycomb core material has high strength and high hardness, but has heavier weight and general specific strength. Therefore, it is necessary to provide a honeycomb core with superior overall performance.
The carbon fiber cloth honeycomb has the comprehensive advantages of light weight, high strength and the like, and has wide application prospect in various fields. At present, because the preparation process of the carbon fiber honeycomb is complex, how to optimize the preparation process of the carbon fiber honeycomb has been a direction of great efforts for researchers in the industry for a long time.
Disclosure of Invention
The invention mainly aims to provide a carbon fiber reinforced carbon foam composite porous structure material and a preparation method thereof, so as to overcome the defects in the prior art.
Another object of the present invention is to functionalize carbon fiber reinforced carbon foam honeycomb materials with greater performance advantages than existing honeycomb materials.
In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:
the embodiment of the invention provides a preparation method of a carbon fiber reinforced carbon foam composite porous structure material, which comprises the following steps:
providing carbon fiber cloth;
connecting a plurality of pieces of carbon fiber cloth, and shaping by adopting shaping resin to form a carbon fiber honeycomb core structure;
filling a carbon foam material serving as a filling material into the carbon fiber honeycomb core structure, and shaping by using shaping resin, wherein the carbon foam material has a porous structure consisting of a three-dimensional network space structure; and the number of the first and second groups,
and (3) packaging carbon fiber cloth serving as a honeycomb panel on the top end surface and the bottom end surface of the carbon fiber honeycomb core structure to obtain the carbon fiber reinforced carbon foam composite porous structure material.
In some embodiments, the method of making comprises:
respectively folding each piece of carbon fiber cloth, wherein the distances between adjacent folds are equal;
coating adhesives on each piece of carbon fiber cloth at intervals, wherein the width of the formed adhesive tape is the same as the distance between adjacent creases, and the distance between adjacent adhesive tapes is 2-5 times of the width of the adhesive tape;
sequentially laminating and overlapping the plurality of carbon fiber cloths coated with the adhesive in a staggered manner, so that the adhesive tape of each carbon fiber cloth is positioned between the adjacent adhesive tapes of the adjacent carbon fiber cloths, sequentially overlapping, cutting, and stretching to form a carbon fiber honeycomb core structure with a regular hexagon through hole structure; and the number of the first and second groups,
and soaking the carbon fiber honeycomb core structure in a setting resin, taking out, removing the redundant setting resin, drying, and curing and setting to obtain the hard carbon fiber honeycomb core structure.
In some embodiments, the method of making comprises: filling a uniform mixing system containing foaming raw materials, water and foaming agents into a through hole structure contained in the carbon fiber honeycomb core structure, steaming at the temperature of 90-110 ℃ for 0.5-1 h, taking out, and heating and carbonizing in a protective atmosphere to obtain the carbon fiber honeycomb core structure filled with the carbon foam material.
In some embodiments, the method of making specifically comprises: and in a protective atmosphere, heating to 140-160 ℃ at the speed of 3-5 ℃/min, preserving heat for 30-60 min, heating to 790-810 ℃ at the speed of 4-6 ℃/min, preserving heat for 120-150 min, and carbonizing.
The embodiment of the invention also provides a carbon fiber reinforced carbon foam composite porous structure material prepared by any one of the methods, which comprises the following components:
the carbon fiber honeycomb core structure is characterized in that a carbon foam material is filled in a through hole structure contained in the carbon fiber honeycomb core structure, the carbon foam material has a porous structure formed by a three-dimensional network space structure, the porosity of the carbon foam material is 45% -58%, and the density of the carbon foam material is 0.15-0.35 g/cm3(ii) a And the number of the first and second groups,
and the carbon fiber cloth is packaged on the top end surface and the bottom end surface of the carbon fiber honeycomb core structure.
Furthermore, the shear strength of the carbon fiber reinforced carbon foam composite porous structure material is 1.6-2.0 MPa, the shear modulus is 60-70 MPa, the compressive strength is 3-4 MPa, the tensile strength is 620-675 MPa, and the thermal conductivity coefficient is lower than 0.03W/(m.K).
Based on the characteristics of light weight, high strength and the like of the carbon fiber reinforced carbon foam composite porous structure material, the embodiment of the invention also provides the application of the carbon fiber reinforced carbon foam composite porous structure material in the field of preparation of special square cabins.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the invention, the biomass raw materials are foamed and carbonized to obtain the carbon foam material as the honeycomb core filling material, and the carbon fiber cloth with extremely light weight is used as the honeycomb core and the panel, so that the density of the honeycomb panel is fully reduced, the material with ultrahigh strength, flame retardance, fire resistance and heat insulation is prepared, various applications can be met, and the preparation of the novel composite porous structure material is realized;
2) according to the invention, biomass raw materials (flour, potato starch and the like) are foamed and carbonized to be used as the honeycomb core filling material, the raw materials are wide in source, widely available renewable resources are fully utilized, the environment is friendly, and the material cost is low; the prepared honeycomb plate fully utilizes the structural porosity of the material, so that the honeycomb plate has excellent heat preservation and insulation performance;
3) the carbon fiber cloth has strong bonding capacity with the interface of the carbon foam material, and the whole body can not collapse and separate after carbonization, thereby having certain structural stability;
4) the main materials used in the invention are biomass materials, carbon fiber cloth, foaming agents and adhesives such as high polymers, setting resin, yeast and the like, and toxic and harmful products are not used, so that the invention conforms to the concept of green environmental protection;
5) the novel composite porous structure material prepared by the invention has the advantages of simple process and lower cost, can be produced in batches, realizes productization, is mainly applied to preparation of special square cabins, and has the characteristics of light weight, high strength and the like.
Detailed Description
In view of the defects in the prior art, the inventor of the present invention provides a technical scheme of the present invention through long-term research and a great deal of practice, wherein biomass raw material foaming carbonized foam is mainly adopted as a honeycomb core filling material, and a nickel-plated carbon fiber cloth composite material is adopted as a honeycomb core and a panel, so that a material with characteristics of light weight, high strength, flame retardance and fire resistance is prepared, and preparation of a novel composite porous structure material is realized. The technical solution, its implementation and principles, etc. will be further explained as follows.
The invention adopts the carbon fiber cloth to bond into the composite porous structure, and the preparation process is simple. In addition, carbon foam materials are filled in the carbon fiber cloth honeycomb core structure to finally form the carbon fiber reinforced carbon foam composite porous structure material, and the carbon fiber reinforced carbon foam composite porous structure material has the advantages of flame retardance, sound insulation, heat preservation and fire resistance.
The carbon foam structure has the characteristics of light weight and low density, and has the advantages of excellent flame retardance, fire resistance and heat preservation; the composite porous structure has the advantages of being not easy to crack and deform, simultaneously having the effects of shock absorption and sound insulation, and further expanding the rich application of the composite porous structure material by adopting the carbon fiber cloth with excellent performances such as high conductivity, high modulus, high strength, low density, high temperature resistance and the like as the honeycomb core and panel materials.
Due to the characteristics of porosity and low density of the foam, the carbon foam material with a unique structure can be prepared after high-temperature carbonization treatment, the internal three-dimensional network space structure of the carbon foam material enables the carbon foam material to have more pores, and meanwhile, the porous structure enables the heat conduction efficiency to be lower, so that the carbon foam material has good heat insulation capability.
One aspect of the embodiments of the present invention provides a method for preparing a carbon fiber reinforced carbon foam composite porous structure material, including:
providing carbon fiber cloth;
connecting a plurality of pieces of carbon fiber cloth, and shaping by adopting shaping resin to form a carbon fiber honeycomb core structure;
filling a carbon foam material serving as a filling material into the carbon fiber honeycomb core structure, and shaping by using shaping resin, wherein the carbon foam material has a porous structure consisting of a three-dimensional network space structure; and the number of the first and second groups,
and (3) packaging carbon fiber cloth serving as a honeycomb panel on the top end surface and the bottom end surface of the carbon fiber honeycomb core structure to obtain the carbon fiber reinforced carbon foam composite porous structure material.
In some embodiments, the method of making comprises: and weaving at least 6K nickel-plated carbon fibers to obtain the carbon fiber cloth.
The carbon fiber cloth serving as the honeycomb core material is not replaceable, the carbon fiber cloth has excellent performances of high conductivity, high modulus, high strength, low density, high temperature resistance and the like, and if other materials are selected as the honeycomb core, the material structure is easy to be unstable and easy to decompose during carbonization. The lightweight and high strength properties of carbon fiber cloth determine the high load-bearing properties of the carbon fiber cloth as a material for honeycomb cores and panels.
In some embodiments, the method of making comprises: and connecting a plurality of carbon fiber cloths by using an adhesive, immersing the carbon fiber cloths in a setting resin, taking out the carbon fiber cloths, and curing and setting to obtain the carbon fiber honeycomb core structure.
In some more specific embodiments, the method of making specifically comprises:
respectively folding each piece of carbon fiber cloth, wherein the distances between adjacent folds are equal;
coating adhesives on each piece of carbon fiber cloth at intervals, wherein the width of the formed adhesive tape is the same as the distance between adjacent creases, and the distance between adjacent adhesive tapes is 2-5 times of the width of the adhesive tape;
sequentially laminating and overlapping the plurality of carbon fiber cloths coated with the adhesive in a staggered manner, so that the adhesive tape of each carbon fiber cloth is positioned between the adjacent adhesive tapes of the adjacent carbon fiber cloths, sequentially overlapping, cutting, and stretching to form a carbon fiber honeycomb core structure with a regular hexagon through hole structure; and the number of the first and second groups,
and soaking the carbon fiber honeycomb core structure in a setting resin, taking out, removing the redundant setting resin, drying in an oven, and curing and setting to obtain the hard carbon fiber honeycomb core structure.
Furthermore, the binder for adhering the carbon fiber cloth in the present invention may be epoxy AB glue, paste instant glue, etc., or may be other adhesives, which is not limited herein.
Further, the size of the through hole structure of the carbon fiber honeycomb core structure can be regulated and controlled according to the distance between the adjacent creases.
Further, the resin for fixing the honeycomb core structure of the carbon fiber cloth in the present invention may be any one or a combination of two or more of phenol resin, epoxy resin, bismaleimide resin, and the like, and may be other resins, which is not limited herein.
In some embodiments, the method of making comprises: filling a uniform mixing system containing foaming raw materials, water and foaming agents into a through hole structure contained in the carbon fiber honeycomb core structure, steaming at the temperature of 90-110 ℃ for 0.5-1 h, taking out, and heating and carbonizing in a protective atmosphere to obtain the carbon fiber honeycomb core structure filled with the carbon foam material.
Furthermore, the volume ratio of the foaming agent to water is 1: 9-3: 7.
Further, the porosity of the carbon foam material is 45% -58%, and the density of the carbon foam material is 0.15-0.35 g/cm3。
In some embodiments, the method of making specifically comprises: and in a protective atmosphere, heating to 140-160 ℃ at the speed of 3-5 ℃/min, preserving heat for 30-60 min, heating to 790-810 ℃ at the speed of 4-6 ℃/min, preserving heat for 120-150 min, and carbonizing.
Further, the protective atmosphere includes an inert atmosphere, preferably an argon atmosphere, but is not limited thereto.
In some embodiments, the foaming raw material may be any one or a combination of two or more of the starch-containing biomass raw materials, as well as other biomass starches. Further, the foaming raw material can be replaced by phenolic resin with higher carbon residue rate.
Further, the biomass raw material includes any one or a combination of two or more of flour, potato starch, corn starch, and the like, but is not limited thereto. According to the invention, biomass raw materials (flour, potato starch and the like) are foamed and carbonized to be used as the honeycomb core filling material, the raw materials are wide in source, widely available renewable resources are fully utilized, the environment is friendly, and the material cost is low; the prepared honeycomb plate fully utilizes the structural porosity of the material, so that the honeycomb plate has excellent heat insulation performance.
Further, the foaming agent may be an inorganic foaming agent, an organic foaming agent, or the like or a mixture thereof, and is preferably yeast, but not limited thereto.
The main materials used in the invention are biomass materials, carbon fiber cloth, foaming agents and adhesives such as high polymers, setting resin, yeast and the like, and toxic and harmful products are not used, so that the invention conforms to the concept of environmental protection.
Further, the homogeneous mixing system further comprises a functional filler, wherein the functional filler comprises magnetic particles, preferably any one or a combination of two or more of copper, cobalt, nickel and the like, but is not limited thereto.
In some embodiments, the method of making comprises:
the nickel-plated carbon fiber and thermosetting polyimide fiber are mixed and twisted to form composite fiber;
weaving the composite fibers into composite carbon fiber cloth in a weaving mode;
and heating the composite carbon fiber cloth to solidify the composite carbon fiber cloth to form a composite carbon fiber plate, and packaging the composite carbon fiber plate as a honeycomb panel on the top end surface and the bottom end surface of the carbon fiber honeycomb core structure.
Further, the preparation method further comprises the following steps: the composite carbon fiber plate is stretched and shaped under the heating condition to form a composite porous structure, so that the mechanical strength of the composite carbon fiber plate can be increased.
Yet another aspect of an embodiment of the present invention provides a carbon fiber reinforced carbon foam composite cellular structure material prepared by any one of the methods described above, comprising:
the carbon fiber honeycomb core structure is characterized in that a carbon foam material is filled in a through hole structure contained in the carbon fiber honeycomb core structure, the carbon foam material has a porous structure formed by a three-dimensional network space structure, the porosity of the carbon foam material is 45% -58%, and the density of the carbon foam material is 0.15-0.35 g/cm3(ii) a And the number of the first and second groups,
and the carbon fiber cloth is packaged on the top end surface and the bottom end surface of the carbon fiber honeycomb core structure.
Furthermore, the carbon fiber cloth has strong bonding capacity with the interface of the carbon foam material, and the whole body cannot collapse or separate after carbonization, so that the carbon fiber cloth has certain structural stability.
Furthermore, the shear strength of the carbon fiber reinforced carbon foam composite porous structure material is 1.6-2.0 MPa, the shear modulus is 60-70 MPa, the compressive strength is 3-4 MPa, the tensile strength is 620-675 MPa, and the thermal conductivity coefficient is lower than 0.03W/(m.K).
Based on the characteristics of light weight, high strength and the like of the carbon fiber reinforced carbon foam composite porous structure material, the embodiment of the invention also provides application of the carbon fiber reinforced carbon foam composite porous structure material in the field of special shelter preparation.
In addition, the inventor of the present application has also found that, when the carbon fiber reinforced carbon foam composite porous structure material of the present application is applied to a special shelter and the like, the heat conductivity coefficient is low, the heat conduction is slow, and the shelter has heat insulation performance, so the heat preservation effect is good.
In conclusion, the carbon foam material obtained by foaming and carbonizing the biomass raw material is used as the honeycomb core filling material, and the carbon fiber cloth with extremely light weight and extremely high strength is used as the honeycomb core and the panel, so that the density of the honeycomb plate is reduced, the strength of the composite porous structure is obviously improved, and the composite porous material with light weight and high strength is prepared; moreover, the preparation process is simple, the cost is low, the batch production can be expanded, and the commercialization is realized.
Detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Therefore, specific functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed embodiment.
The test methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available, unless otherwise specified.
Example 1
The preparation method of the carbon foam filled carbon fiber cloth composite porous structure material in the embodiment comprises the following specific technical steps:
1) nickel-plated carbon fiber cloth: is woven by nickel-plated carbon fiber and is provided by Suzhou nanotechnology of Chinese academy of sciences and lightweight laboratory of nanometer bionic research institute.
2) Carbon fiber cloth honeycomb core structure: folding each carbon fiber cloth film, wherein the distances between the folded creases are equal; every carbon fiber cloth interval rubber coating, the adhesive tape width be two crease intervals, and adjacent adhesive tape interval is 2 ~ 5 times's adhesive tape width, with many rubber coated carbon fiber cloth according to the staggered lamination coincide, the adhesive tape of second carbon fiber cloth is located in the middle of the adjacent adhesive tape of first carbon fiber cloth, the adhesive tape of third carbon fiber cloth is located in the middle of the adjacent adhesive tape of second carbon fiber cloth, so coincide and follow again according to highly tailorring of carbon nanotube honeycomb core structure. And pulling the carbon nanotube honeycomb core structure open to enable the through hole structure to be in a regular hexagon shape, soaking the phenolic resin liquid, taking out the phenolic resin liquid, draining the redundant resin, and putting the phenolic resin liquid into an oven for shaping.
3) Carbon foam filled honeycomb core: mixing and stirring a certain amount of flour, water and yeast, well mixing and fermenting, uniformly kneading and exhausting, filling the mixture into the prepared honeycomb core, steaming at the temperature of 90-110 ℃ for 0.5-1 h, taking out, putting into a furnace, heating to 140-160 ℃ at the speed of 3-5 ℃/min under the protection of argon, preserving heat for 30-60 min, heating to 790-810 ℃ at the speed of 4-6 ℃/min, and preserving heat for 120-150 min, thus preparing the carbon foam filled carbon fiber cloth honeycomb core structure, wherein the porosity of the carbon foam material is 45-58%, and the density is 0.15-0.35 g/cm3。
4) And (3) honeycomb plate packaging: and soaking the carbon fiber cloth in a phenolic resin solution, taking out and drying, fixing the carbon fiber cloth on two sides of the carbon nanotube honeycomb core structure by using glue, and finally preparing the carbon foam filled carbon fiber cloth composite porous structure material.
Further, the step 4) may further specifically include:
the nickel-plated carbon fiber and thermosetting polyimide fiber are mixed and twisted to form composite fiber;
weaving the composite fibers into composite carbon fiber cloth in a weaving mode;
heating the composite carbon fiber cloth to cure the composite carbon fiber cloth to form a composite carbon fiber plate, and packaging the composite carbon fiber plate as a honeycomb panel on the top end surface and the bottom end surface of the carbon fiber honeycomb core structure;
furthermore, in the step 4), the composite carbon fiber plate can be stretched and shaped under the heating condition to form a composite porous structure.
Comparative example 1
The comparative example differs from example 1 in that: the carbon fiber cloth is replaced by the carbon nano tube film.
Through tests, various performance parameters are shown in table 1, and it can be obviously obtained that after the carbon fiber cloth is replaced by the carbon nano tube film, the strength of the carbon nano tube film is far lower than that of the carbon foam filled carbon fiber cloth composite porous material.
| Performance index | Example 1 | Comparative example 1 |
| Shear strength (Mpa) | 1.8 | 0.36 |
| Shear modulus (Mpa) | 63.7 | 18.4 |
| Density (kg/m)3) | 55 | 26 |
| Flame retardant rating | B1 | B1 |
| Compressive strength (Mpa) | 3.2 | B1 |
| Tensile strength (Mpa) | 637.2 | 127.1 |
| Coefficient of thermal conductivity (W/m. K) | 0.028 | 0.085 |
Obviously, compared with the traditional material for manufacturing the square cabin, the carbon fiber reinforced carbon foam composite porous structure material for manufacturing the square cabin has the characteristics of light weight, high strength and the like, and meanwhile, the square cabin has good heat insulation effect because the material has low heat conductivity coefficient and slow heat conduction and has heat insulation performance.
In addition, the inventors of the present invention have also made experiments with other materials, process operations, and process conditions described in the present specification with reference to the above examples, and have obtained preferable results.
While the invention has been described with reference to illustrative embodiments, it will be understood by those skilled in the art that various other changes, omissions and/or additions may be made and substantial equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A preparation method of a carbon fiber reinforced carbon foam composite porous structure material is characterized by comprising the following steps:
providing carbon fiber cloth;
connecting a plurality of pieces of carbon fiber cloth, and shaping by adopting shaping resin to form a carbon fiber honeycomb core structure;
filling a carbon foam material serving as a filling material into the carbon fiber honeycomb core structure, and shaping by using shaping resin, wherein the carbon foam material has a porous structure consisting of a three-dimensional network space structure; and the number of the first and second groups,
and (3) packaging carbon fiber cloth serving as a honeycomb panel on the top end surface and the bottom end surface of the carbon fiber honeycomb core structure to obtain the carbon fiber reinforced carbon foam composite porous structure material.
2. The production method according to claim 1, characterized by comprising: and connecting a plurality of carbon fiber cloths by using an adhesive, immersing the carbon fiber cloths in a setting resin, taking out the carbon fiber cloths, and curing and setting to obtain the carbon fiber honeycomb core structure.
3. The method according to claim 2, comprising:
respectively folding each piece of carbon fiber cloth, wherein the distances between adjacent folds are equal;
coating adhesives on each piece of carbon fiber cloth at intervals, wherein the width of the formed adhesive tape is the same as the distance between adjacent creases, and the distance between adjacent adhesive tapes is 2-5 times of the width of the adhesive tape;
sequentially laminating and overlapping the plurality of carbon fiber cloths coated with the adhesive in a staggered manner, so that the adhesive tape of each carbon fiber cloth is positioned between the adjacent adhesive tapes of the adjacent carbon fiber cloths, sequentially overlapping, cutting, and stretching to form a carbon fiber honeycomb core structure with a regular hexagon through hole structure; and the number of the first and second groups,
and soaking the carbon fiber honeycomb core structure in a setting resin, taking out, removing the redundant setting resin, drying, and curing and setting to obtain the hard carbon fiber honeycomb core structure.
4. The production method according to claim 3, characterized in that: the adhesive comprises epoxy resin AB adhesive and/or pasty instant adhesive; and/or the setting resin comprises any one or the combination of more than two of phenolic resin, epoxy resin and bismaleimide resin.
5. According to the rightThe method according to claim 1, characterized by comprising: filling a uniform mixing system containing foaming raw materials, water and a foaming agent into a through hole structure contained in the carbon fiber honeycomb core structure, steaming at the temperature of 90-110 ℃ for 0.5-1 h, taking out, and heating and carbonizing in a protective atmosphere to obtain the carbon fiber honeycomb core structure filled with the carbon foam material; preferably, the porosity of the carbon foam material is 45% -58%, and the density is 0.15-0.35 g/cm3(ii) a Preferably, the volume ratio of the foaming agent to the water is 1: 9-3: 7.
6. The preparation method according to claim 5, characterized by specifically comprising: heating to 140-160 ℃ at the speed of 3-5 ℃/min in a protective atmosphere, preserving heat for 30-60 min, heating to 790-810 ℃ at the speed of 4-6 ℃/min, preserving heat for 120-150 min, and carbonizing; and/or the protective atmosphere comprises an inert atmosphere, preferably an argon atmosphere.
7. The method of claim 5, wherein: the foaming raw material comprises a biomass raw material and/or phenolic resin with high carbon residue rate; preferably, the biomass raw material comprises any one or a combination of more than two of flour, potato starch and corn starch;
and/or, the foaming agent comprises an inorganic foaming agent and/or an organic foaming agent, preferably yeast;
and/or, the homogeneous mixing system further comprises a functional filler, preferably, the functional filler comprises magnetic particles, preferably, any one or a combination of two or more of iron, cobalt and nickel.
8. The production method according to claim 1, characterized by comprising: weaving nickel-plated carbon fibers to obtain the carbon fiber cloth;
and/or, the preparation method comprises the following steps:
the nickel-plated carbon fiber and thermosetting polyimide fiber are mixed and twisted to form composite fiber;
weaving the composite fibers into composite carbon fiber cloth in a weaving mode;
heating the composite carbon fiber cloth to cure the composite carbon fiber cloth to form a composite carbon fiber plate, and packaging the composite carbon fiber plate as a honeycomb panel on the top end surface and the bottom end surface of the carbon fiber honeycomb core structure;
preferably, the preparation method further comprises: and stretching and shaping the composite carbon fiber plate under the heating condition to form a composite porous structure.
9. A carbon fiber reinforced carbon foam composite porous structural material prepared by the method of any one of claims 1-8, comprising:
the carbon fiber honeycomb core structure is characterized in that a carbon foam material is filled in a through hole structure contained in the carbon fiber honeycomb core structure, the carbon foam material has a porous structure formed by a three-dimensional network space structure, the porosity of the carbon foam material is 45% -58%, and the density of the carbon foam material is 0.15-0.35 g/cm3(ii) a And the number of the first and second groups,
the carbon fiber cloth is packaged on the top end face and the bottom end face of the carbon fiber honeycomb core structure;
preferably, the shear strength of the carbon fiber reinforced carbon foam composite porous structure material is 1.6-2.0 MPa, the shear modulus is 60-70 MPa, the compressive strength is 3-4 MPa, the tensile strength is 620-675 MPa, and the thermal conductivity is lower than 0.03W/(m.K).
10. Use of the carbon fiber reinforced carbon foam composite cellular structure material of claim 9 in the field of making specialty shelter.
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