CN115195260A - Preparation method of carbon powder whisker reinforced carbon cloth laminated plate - Google Patents
Preparation method of carbon powder whisker reinforced carbon cloth laminated plate Download PDFInfo
- Publication number
- CN115195260A CN115195260A CN202210923570.2A CN202210923570A CN115195260A CN 115195260 A CN115195260 A CN 115195260A CN 202210923570 A CN202210923570 A CN 202210923570A CN 115195260 A CN115195260 A CN 115195260A
- Authority
- CN
- China
- Prior art keywords
- carbon
- powder
- temperature
- carbon cloth
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 44
- 239000004744 fabric Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims description 41
- 238000010438 heat treatment Methods 0.000 claims description 36
- 238000000227 grinding Methods 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 18
- 238000007731 hot pressing Methods 0.000 claims description 18
- 238000003763 carbonization Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 239000002270 dispersing agent Substances 0.000 claims description 12
- 238000011049 filling Methods 0.000 claims description 12
- 230000001502 supplementing effect Effects 0.000 claims description 12
- 239000011268 mixed slurry Substances 0.000 claims description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000005011 phenolic resin Substances 0.000 claims description 9
- 229920001568 phenolic resin Polymers 0.000 claims description 9
- 239000006229 carbon black Substances 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 8
- 238000010000 carbonizing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 150000001721 carbon Chemical class 0.000 claims description 2
- 238000010907 mechanical stirring Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000002203 pretreatment Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 10
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011203 carbon fibre reinforced carbon Substances 0.000 abstract description 9
- 238000005452 bending Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000011229 interlayer Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 14
- 239000013078 crystal Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
-
- 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
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
-
- 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
- B32B38/0036—Heat treatment
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- 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
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/107—Ceramic
- B32B2264/108—Carbon, e.g. graphite particles
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a preparation method of a carbon powder whisker reinforced carbon cloth laminated plate, which belongs to the technical field of carbon-carbon composite plate preparation, and aims at the defects of high porosity and low interlayer bonding strength and bending strength of a two-dimensional carbon-carbon composite laminated plate. Through the reasonable introduction of carbon powder and whiskers, the laminated plate has the effects of strengthening and toughening, and in addition, the effects of recycling carbon powder waste and saving cost are achieved. The two-dimensional carbon-carbon composite material laminated plate prepared by the invention has the characteristics of low porosity, simple preparation process, low cost and controllability, and can realize industrial production.
Description
Technical Field
The invention relates to a preparation method of a carbon powder whisker reinforced carbon cloth laminated plate, belonging to the technical field of carbon-carbon composite plate preparation.
Background
At present, the porosity of a two-dimensional carbon-carbon composite laminated plate is high, the interlayer bonding strength and the bending strength are low, the performance of the laminated plate is improved by using carbon cloth with excellent performance and phenolic resin with high carbon residue rate, and the preparation cost is greatly increased.
With the continuous and vigorous development of photovoltaic industry and carbon fiber composite materials, the waste materials generated by machining are increased gradually, environmental pollution and resource waste can be caused by random discarding, landfill and incineration treatment, and the recycling of machining waste materials becomes a new challenge facing the industry.
Disclosure of Invention
Aiming at the problems, the invention provides a preparation method of a carbon powder whisker reinforced carbon cloth laminated plate of a reinforced and toughened plate with low porosity, which adopts carbon powder containing whiskers as a reinforcement to prepare a two-dimensional carbon-carbon composite material laminated plate with excellent performance. In addition, the purposes of recycling the waste carbon powder and saving the cost are achieved.
The invention can be realized by the following technical scheme:
a preparation method of a carbon powder whisker reinforced carbon cloth laminated plate comprises the following steps:
(1) Pre-treatment of mechanically added carbon powder, which comprises grinding and screening of powder and drying of the powder;
(2) Mix evenly
Adding the powder obtained in the step (1) and a dispersing agent into a container filled with a phenolic resin solution, and then mechanically stirring to prepare mixed slurry;
(3) Filling in
Uniformly and compactly filling the mixed slurry uniformly mixed in the step (2) into gaps of the carbon cloth;
(4) Laminate layer
Repeating the step (3), stacking the filled carbon cloth on the previous filled carbon cloth, and repeating the step for 12 times to prepare a prefabricated body of the carbon cloth plate with 13 layers of layers;
(6) Hot-pressing and curing;
(7) Carbonizing by carbonization
And putting the plate subjected to hot pressing and curing into a carbonization furnace for carbonization, and finally obtaining the required carbon powder whisker reinforced carbon cloth laminated plate.
Further, the grinding and screening of the powder are as follows: putting the powder into grinding equipment for grinding, and screening the powder to obtain 100-200 meshes of powder; the drying of the powder is as follows: and (4) putting the screened powder into a drying oven to be dried for 2 hours at 100 ℃.
Further, the machine-added carbon powder in the step (1) needs to simultaneously satisfy three conditions: 1) The single or mixed powder is formed by rubbing a carbon thermal field material such as a heat insulation cylinder, a flow guide cylinder, a crucible side, a crucible support or a connecting ring with a cutter of a milling machine or a grinding machine; 2) The prefabricated bodies of the photovoltaic thermal field material are 2.5D needling prefabricated bodies, and the content of carbon fibers in the photovoltaic thermal field material accounts for 30-45% of the total weight; 3) The collection of toner was limited to toner in a lathe stack, exhaust line and dust collection apparatus with power 15HP and air flow 200 CMM.
Further, the dispersant in the step (2) is a carbon black dispersant, and the mixed slurry is prepared by mixing the carbon black dispersant, carbon powder and phenolic resin according to the mass ratio of (1-3) to (5-15) to 100.
Further, the rotation speed of the mechanical stirring in the step 2) is 60-100r/min, and the stirring time is 10-20min.
Further, the step 6) of hot pressing and curing is that
Putting the plate prefabricated body into a flat plate hot press for hot pressing and curing, wherein the process flow is as follows:
a) Heating a hot press under a constant pressure of 1MPa to 96 ℃ from room temperature at a heating rate of 3 ℃/min, and preserving heat for 45min to perform pre-curing;
b) Supplementing pressure to 2MPa, increasing the temperature to 130 ℃ at the heating rate of 2 ℃/min, and keeping the temperature and the pressure for 30min;
c) Supplementing pressure to 3MPa, increasing the temperature to 150 ℃ at a heating rate of 1 ℃/min, and keeping the temperature and the pressure for 30min;
d) Continuously heating to 165 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 60min under the constant pressure of 5 MPa;
e) And shutting down the machine to naturally cool to room temperature.
Further, the carbonization process in the step (7) is 800-10 h.
Advantageous effects
Aiming at the defects of high porosity and low interlayer bonding strength and bending strength of the two-dimensional carbon-carbon composite laminated plate, the invention adopts the carbon powder containing the crystal whiskers as a reinforcement and obtains the two-dimensional carbon-carbon composite laminated plate with excellent performance by matching the carbon powder and the crystal whiskers. Through the reasonable introduction of carbon powder and whiskers, the laminated plate has the effects of strengthening and toughening, and in addition, the effects of recycling carbon powder waste and saving cost are achieved. The two-dimensional carbon-carbon composite material laminated plate prepared by the invention has the characteristics of low porosity, simple preparation process, low cost and controllability, and can realize industrial production.
Drawings
FIG. 1 is a process flow chart of the present invention for preparing carbon powder whisker reinforced carbon cloth laminated plate
FIG. 2 is SEM image of whisker in carbon powder
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification.
Example 1
A preparation method of a carbon powder whisker reinforced carbon cloth laminated plate specifically comprises the following steps (shown in reference figure 1):
(1) Pretreatment of machine-added carbon powder
(1) Grinding and screening powder: putting the powder into a grinding device for grinding and sieving to obtain 100-200 mesh powder.
(2) Drying the powder: putting the sieved powder into a drying box for drying for 100-2 h;
(2) Mix evenly
Respectively putting the carbon black dispersing agent, the powder obtained in the step (1) and the phenolic resin into a container according to the mass ratio of 1;
(3) Filling in
Uniformly and compactly filling the mixed slurry uniformly mixed in the step (2) into gaps of the carbon cloth;
(4) Laminate layer
Repeating the step (3), stacking the filled carbon cloth on the previous filled carbon cloth, and repeating the step for 12 times to prepare a prefabricated body of the carbon cloth plate with 13 layers of layers;
(6) Hot pressing solidification
Putting the plate prefabricated body into a flat plate hot press for hot pressing and curing, wherein the process flow is as follows:
a) Heating a hot press under a constant pressure of 1MPa to 96 ℃ from room temperature at a heating rate of 3 ℃/min, and preserving heat for 45min to perform pre-curing;
b) Supplementing pressure to 2MPa, heating to 130 deg.C at a rate of 2 deg.C/min, and maintaining the temperature and pressure for 30min;
c) Supplementing pressure to 3MPa, heating to 150 deg.C at a rate of 1 deg.C/min, and maintaining the temperature for 30min;
d) Continuously heating to 165 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 60min under the constant pressure of 5 MPa;
e) Shutting down the machine to naturally cool the machine to room temperature;
(7) Carbonizing
Putting the plate after hot-pressing curing into a carbonization furnace for carbonization for 800-10 h to finally obtain the product with the porosity of 18 percent and the density of 1.3g/cm 3 Carbon powder whiskers with a bending strength of 135MPa reinforced carbon cloth laminates (SEM images of whiskers in carbon powder are shown in fig. 2).
Example 2
A preparation method of a carbon powder whisker reinforced carbon cloth laminated plate specifically comprises the following steps:
(1) Pretreatment of machine-added carbon powder
(1) Grinding and screening powder: putting the powder into a grinding device for grinding and sieving to obtain 100-200 mesh powder.
(2) Drying the powder: putting the screened powder into a drying box for drying for 100-2 h;
(2) Mix evenly
Putting a carbon black dispersing agent, the powder obtained in the step (1) and phenolic resin into a container according to the mass ratio of 3;
(3) Filling in
Uniformly and compactly filling the mixed slurry uniformly mixed in the step (2) into gaps of the carbon cloth;
(4) Laminate layer
Repeating the step (3), stacking the filled carbon cloth on the previous filled carbon cloth, and repeating the step for 12 times to prepare a prefabricated body of the 13-layer laminated carbon cloth plate;
(6) Hot press curing
Putting the plate prefabricated body into a flat plate hot press for hot pressing and curing, wherein the process flow is as follows:
a) Heating a hot press under a constant pressure of 1MPa to 96 ℃ from room temperature at a heating rate of 3 ℃/min, and preserving heat for 45min to perform pre-curing;
b) Supplementing pressure to 2MPa, increasing the temperature to 130 ℃ at the heating rate of 2 ℃/min, and keeping the temperature and the pressure for 30min;
c) Supplementing pressure to 3MPa, heating to 150 deg.C at a rate of 1 deg.C/min, and maintaining the temperature for 30min;
d) Continuously heating to 165 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 60min under the constant pressure of 5 MPa;
e) Shutting down the machine to naturally cool the machine to room temperature;
(7) Carbonizing by carbonization
Putting the plate after hot-pressing curing into a carbonization furnace for carbonization for 800-10 h to finally obtain the product with the porosity of 15 percent and the density of 1.41g/cm 3 The carbon powder whisker reinforced carbon cloth laminated plate with the bending strength of 149 MPa.
Example 3
A preparation method of a carbon powder whisker reinforced carbon cloth laminated plate specifically comprises the following steps:
(1) Pretreatment of machine-added carbon powder
(1) Grinding and screening powder: putting the powder into a grinding device for grinding and sieving to obtain 100-200 mesh powder.
(2) Drying the powder: putting the sieved powder into a drying box for drying for 100-2 h;
(2) Mix evenly
Putting a carbon black dispersing agent, the powder obtained in the step (1) and phenolic resin into a container according to the mass ratio of 1;
(3) Filling in
Uniformly and compactly filling the mixed slurry uniformly mixed in the step (2) into gaps of the carbon cloth;
(4) Laminate layer
Repeating the step (3), stacking the filled carbon cloth on the previous filled carbon cloth, and repeating the step for 12 times to prepare a prefabricated body of the carbon cloth plate with 13 layers of layers;
(6) Hot pressing solidification
Putting the plate prefabricated body into a flat plate hot press for hot pressing and curing, wherein the process flow is as follows:
a) Heating a hot press to a constant pressure of 1MPa, raising the temperature from room temperature to 96 ℃ at a heating rate of 3 ℃/min, and preserving the temperature for 45min to perform pre-curing;
b) Supplementing pressure to 2MPa, increasing the temperature to 130 ℃ at the heating rate of 2 ℃/min, and keeping the temperature and the pressure for 30min;
c) Supplementing pressure to 3MPa, heating to 150 deg.C at a rate of 1 deg.C/min, and maintaining the temperature for 30min;
d) Continuously heating to 165 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 60min under the constant pressure of 5 MPa;
e) Shutting down the machine to naturally cool the machine to room temperature;
(7) Carbonizing
Putting the plate after hot pressing and curing into a carbonization furnace for carbonization for 800-10 h to finally obtain the product with the porosity of 12 percent and the density of 1.46g/cm 3 And the carbon powder whisker reinforced carbon cloth laminated plate with the bending strength of 156 MPa.
Example 4
A preparation method of a carbon powder whisker reinforced carbon cloth laminated plate specifically comprises the following steps:
(1) Pretreatment of machine-added carbon powder
(1) Grinding and screening powder: putting the powder into a grinding device for grinding and sieving to obtain 100-200 mesh powder.
(2) Drying the powder: putting the screened powder into a drying box for drying for 100-2 h;
(2) Mix evenly
Respectively putting the carbon black dispersing agent, the powder obtained in the step (1) and the phenolic resin into a container according to the mass ratio of 3;
(3) Filling in
Uniformly and compactly filling the mixed slurry uniformly mixed in the step (2) into gaps of the carbon cloth;
(4) Laminate layer
Repeating the step (3), stacking the filled carbon cloth on the previous filled carbon cloth, and repeating the step for 12 times to prepare a prefabricated body of the carbon cloth plate with 13 layers of layers;
(6) Hot press curing
Putting the plate prefabricated body into a flat plate hot press for hot pressing and curing, wherein the process flow is as follows:
a) Heating a hot press to a constant pressure of 1MPa, raising the temperature from room temperature to 96 ℃ at a heating rate of 3 ℃/min, and preserving the temperature for 45min to perform pre-curing;
b) Supplementing pressure to 2MPa, heating to 130 deg.C at a rate of 2 deg.C/min, and maintaining the temperature and pressure for 30min;
c) Supplementing pressure to 3MPa, heating to 150 deg.C at a rate of 1 deg.C/min, and maintaining the temperature for 30min;
d) Continuously heating to 165 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 60min under the constant pressure of 5 MPa;
e) Shutting down the machine and naturally cooling the machine to room temperature;
(7) Carbonizing by carbonization
Putting the plate after hot pressing and curing into a carbonization furnace for carbonization for 800-10 h to finally obtain the product with the porosity of 8.5 percent and the density of 1.5g/cm 3 And the bending strength of the carbon powder whisker reinforced carbon cloth laminated plate is 142 MPa.
Meanwhile, the mechanically added carbon powder in step (1) in the above embodiments simultaneously satisfies three conditions: 1) The single or mixed powder is formed by rubbing a carbon thermal field material such as a heat insulation cylinder, a flow guide cylinder, a crucible side, a crucible support or a connecting ring with a cutter of a milling machine or a grinding machine; 2) The prefabricated bodies of the photovoltaic thermal field material are 2.5D needling prefabricated bodies, and the content of carbon fibers in the photovoltaic thermal field material accounts for 30-45% of the total weight; 3) The collection of toner was limited to toner in a lathe stack, exhaust line and dust collection apparatus with power 15HP and air flow 200 CMM.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A preparation method of a carbon powder whisker reinforced carbon cloth laminated plate is characterized by comprising the following steps:
(1) Pre-treatment of mechanically added carbon powder, which comprises grinding and screening of powder and drying of the powder;
(2) Mix evenly
Adding the powder obtained in the step (1) and a dispersing agent into a container filled with a phenolic resin solution, and then mechanically stirring to prepare mixed slurry;
(3) Filling in
Uniformly and compactly filling the mixed slurry uniformly mixed in the step (2) into gaps of the carbon cloth;
(4) Laminate layer
Repeating the step (3), stacking the filled carbon cloth on the previous filled carbon cloth, and repeating the step for 12 times to prepare a prefabricated body of the 13-layer laminated carbon cloth plate;
(6) Hot pressing and curing;
(7) Carbonizing
And putting the plate subjected to hot pressing and curing into a carbonization furnace for carbonization, and finally obtaining the required carbon powder whisker reinforced carbon cloth laminated plate.
2. The method according to claim 1, wherein the powder is ground and sieved as follows: putting the powder into a grinding device for grinding and sieving to obtain 100-200 meshes of powder; the drying of the powder is as follows: and (4) putting the screened powder into a drying oven to be dried for 2 hours at 100 ℃.
3. The method for preparing the carbon powder according to the claim 1, wherein the step (1) of adding the carbon powder simultaneously satisfies three conditions: 1) The single or mixed powder is formed by rubbing a thermal insulation cylinder, a guide cylinder, a crucible side, a crucible support or a connecting ring photovoltaic thermal field material made of carbon through a milling machine and a grinding machine cutter; 2) The prefabricated bodies of the photovoltaic thermal field material are 2.5D needling prefabricated bodies, and the content of carbon fibers in the photovoltaic thermal field material accounts for 30-45% of the total weight; 3) The collection of the carbon powder is limited to the carbon powder in the lathe stack, the exhaust pipeline and the dust collection equipment with the power of 15HP and the air volume of 200 CMM.
4. The preparation method according to claim 1, wherein the dispersant in the step (2) is a carbon black dispersant, and the mixed slurry is prepared by mixing the carbon black dispersant, carbon powder and phenolic resin according to a mass ratio of (1-3) to (5-15) to 100.
5. The method according to claim 1, wherein the rotation speed of the mechanical stirring in the step 2) is
60-100r/min, and stirring for 10-20min.
6. The method as recited in claim 1, wherein said step 6) of hot pressing is curing into
Putting the plate prefabricated body into a flat plate hot press for hot-pressing solidification, wherein the process flow is as follows:
a) Heating a hot press to a constant pressure of 1MPa, raising the temperature from room temperature to 96 ℃ at a heating rate of 3 ℃/min, and preserving the temperature for 45min to perform pre-curing;
b) Supplementing pressure to 2MPa, increasing the temperature to 130 ℃ at the heating rate of 2 ℃/min, and keeping the temperature and the pressure for 30min;
c) Supplementing pressure to 3MPa, heating to 150 deg.C at a rate of 1 deg.C/min, and maintaining the temperature for 30min;
d) Continuously heating to 165 ℃ at the heating rate of 1 ℃/min, and keeping the temperature for 60min under the constant pressure of 5 MPa;
e) And shutting down the machine to naturally cool the machine to room temperature.
7. The method of claim 1, wherein: the carbonization process in the step (7) is 800-10 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210923570.2A CN115195260A (en) | 2022-08-02 | 2022-08-02 | Preparation method of carbon powder whisker reinforced carbon cloth laminated plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210923570.2A CN115195260A (en) | 2022-08-02 | 2022-08-02 | Preparation method of carbon powder whisker reinforced carbon cloth laminated plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115195260A true CN115195260A (en) | 2022-10-18 |
Family
ID=83585682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210923570.2A Pending CN115195260A (en) | 2022-08-02 | 2022-08-02 | Preparation method of carbon powder whisker reinforced carbon cloth laminated plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115195260A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437956A (en) * | 2018-12-25 | 2019-03-08 | 深圳市驭晟新材料科技有限公司 | The carbon carbon composite plate and preparation method thereof quickly prepared suitable for pressure sintering |
| CN112571818A (en) * | 2020-12-01 | 2021-03-30 | 西安美兰德新材料有限责任公司 | Composite process for producing carbon-carbon plate by using carbon powder waste |
-
2022
- 2022-08-02 CN CN202210923570.2A patent/CN115195260A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437956A (en) * | 2018-12-25 | 2019-03-08 | 深圳市驭晟新材料科技有限公司 | The carbon carbon composite plate and preparation method thereof quickly prepared suitable for pressure sintering |
| CN112571818A (en) * | 2020-12-01 | 2021-03-30 | 西安美兰德新材料有限责任公司 | Composite process for producing carbon-carbon plate by using carbon powder waste |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109721377B (en) | Carbon fiber reinforced silicon carbide ceramic matrix composite and preparation method thereof | |
| CN101591178B (en) | Method for manufacturing rigid carbon fiber heat insulating material and surface treatment method | |
| WO2020042950A1 (en) | Short-fiber-reinforced oriented max-phase ceramic-based composite and preparation method therefor | |
| CN112142477B (en) | Nano lignin-silicon nitride based ceramic and preparation method thereof | |
| CN108821621B (en) | Light high-strength ceramsite and preparation method thereof | |
| CN107010985A (en) | A kind of Carbon fibe enhancing ceramic matrix friction material of the phase containing Ti3SiC2 and preparation method thereof | |
| CN103272490B (en) | A kind of fiber reinforcement flat carbon film and preparation method thereof | |
| CN109608218B (en) | Self-healing ceramic matrix composite and low-temperature rapid preparation method thereof | |
| CN107399983A (en) | A kind of silicon carbide reaction-sintered foamed ceramics and preparation method thereof | |
| CN102295465B (en) | Hot-press preparation method of short carbon fiber/silicon carbide composite material | |
| CN113816745A (en) | High-strength high-density graphite mold and preparation method thereof | |
| CN108947556B (en) | Preparation method of carbon-carbon composite material based on unidirectional tape process | |
| CN115074090B (en) | High-temperature composite phase-change heat storage material and preparation method thereof | |
| CN114685177B (en) | High-strength carbon graphite material and preparation method and application thereof | |
| CN114645449B (en) | Preparation method of polyimide resin carbon modified C/C-SiC friction material | |
| CN114276158A (en) | Preparation method of short carbon fiber composite material | |
| CN107746282A (en) | A kind of in-situ carburization silica fibre enhancing liquid phase sintering silicon carbide ceramic and manufacture method | |
| CN115029075A (en) | Phenolic resin adhesive film, preparation method and preparation method of hard graphite fiber felt | |
| CN115195260A (en) | Preparation method of carbon powder whisker reinforced carbon cloth laminated plate | |
| CN213446876U (en) | Carbon fiber plate with silicon carbide coating on surface | |
| CN112194497A (en) | Method for preparing C/C composite material by low-temperature hot-pressing high-temperature pressureless two-step sintering | |
| CN116120083A (en) | Preparation method of integral carbon-carbon crucible | |
| CN109879290A (en) | The method for preparing silicon monoxide using silicon containing biomass serialization | |
| CN110066176A (en) | The preparation method of boron nitride fiber enhancing silicon boron oxygen nitrogen ceramic matric composite | |
| CN111018560B (en) | Multi-scale pore honeycomb ceramic and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221018 |
|
| RJ01 | Rejection of invention patent application after publication |