CN112571818A - Composite process for producing carbon-carbon plate by using carbon powder waste - Google Patents
Composite process for producing carbon-carbon plate by using carbon powder waste Download PDFInfo
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- CN112571818A CN112571818A CN202011382005.7A CN202011382005A CN112571818A CN 112571818 A CN112571818 A CN 112571818A CN 202011382005 A CN202011382005 A CN 202011382005A CN 112571818 A CN112571818 A CN 112571818A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
- B29C67/243—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/12—Condensation polymers of aldehydes or ketones
- C04B26/122—Phenol-formaldehyde condensation polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a composite process for producing carbon-carbon plates by using carbon powder waste, which comprises the following steps: fiber dispersion treatment, namely treating long fibers into chopped fibers; step two, the carbon powder after mechanical processing is treated, and the carbon powder after mechanical processing is ground into powder of 100 meshes and 200 meshes; step three, preparing resin powder, namely grinding the phenolic resin powder into powder of 100-200 meshes; step four, preparing for mixing, namely putting the products obtained in the step one, the step two and the step three into a mixer according to the proportion of 4:1:1 and mixing uniformly; step five, mould pressing, namely putting the mixed powder into a prepared mould cavity for mould pressing, wherein the process flow is as follows: and putting the mixed powder into a prepared mould cavity, and putting the mould and the mould into a flat plate hot press together for hot pressing and solidification. The invention takes the chopped fiber powder as the reinforcing framework and the carbon powder and the resin powder as the reinforcing materials, and the chopped fiber powder and the resin powder are uniformly dispersed in the reinforcing body, thereby improving the uniformity and the bending strength of the composite board, and reducing the porosity and the raw material cost of the board.
Description
Technical Field
The invention belongs to the technical field of carbon-carbon composite board preparation, and particularly relates to a composite process for producing a carbon-carbon board by using carbon powder waste.
Background
With the wider application of carbon fiber composite materials, more and more waste materials are produced, and the recycling of the waste materials is a new problem in the industry at present;
generally, the waste materials generated in the processing process have no utilization value, and are discarded or incinerated at will, so that environmental pollution and resource waste are caused;
the existing recovery process has the advantages that the carbon powder waste is used as the hearth laying layer, and the method has low utilization value.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a composite process for producing a carbon-carbon plate by using carbon powder waste.
The technical scheme adopted by the invention is as follows:
a composite process for producing carbon-carbon plates by utilizing carbon powder waste comprises the following steps:
fiber dispersion treatment, namely treating long fibers into short fibers;
step two, the carbon powder after mechanical processing is treated, and the carbon powder after mechanical processing is ground into powder of 100 meshes and 200 meshes;
step three, preparing resin powder, namely grinding the phenolic resin powder into powder of 100-200 meshes;
step four, preparing for mixing, namely putting the products obtained in the step one, the step two and the step three into a mixer according to the proportion of 4:1:1 and mixing uniformly;
step five, mould pressing, namely putting the mixed powder into a prepared mould cavity for mould pressing, wherein the process flow is as follows:
a) putting the mixed powder into a prepared mould cavity, putting the mould into a flat plate hot press together, and performing hot pressing and solidification;
b) heating the hot press from room temperature to 80 ℃ for pre-heating treatment, keeping the temperature for 30min, and intermittently exhausting gas for one to two times in the process;
c) adding initial pressure of 1Mpa and supplementary pressure of 0.5Mpa, and maintaining the pressure for 20 min;
d) heating to 100 deg.C, maintaining the temperature for 30min, and pressurizing to 10 Mpa;
e) continuously heating to 140 deg.C, and pressurizing to 12 Mpa;
f) continuously heating to 160 ℃, pressurizing to 16Mpa, preserving heat for 1h and maintaining pressure for 30 min.
Preferably, the dispersant for dispersing the fibers is methyl cellulose.
Preferably, the bending strength of the plate is 180 MPa.
Preferably, the sheet has a porosity of 45% to 50% and a density of 0.9 to 1.1g/cm 3.
Preferably, the length of the chopped fiber prepared by treating the long fiber in the first step with methyl cellulose is 2-3 mm.
Preferably, the mixer in the fourth step is a bedroom mixer.
Preferably, the rotating speed of the mixer in the fourth step is 80-100r/min, and the mixing time is 10-15 min.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, waste carbon powder generated in the processing and production process of the carbon-carbon composite material is recycled, and the environmental pollution and the waste treatment cost are reduced.
2. In the invention, the carbon-carbon composite board is prepared by using the waste carbon powder, so that the material utilization rate is improved.
3. In the invention, the process takes the chopped fiber powder as a reinforcing framework and carbon powder and resin powder as reinforcing materials, and the chopped fiber powder and the carbon powder are uniformly dispersed in a reinforcing body, so that the uniformity and the bending strength of the composite board are improved, and the porosity and the raw material cost of the board are reduced.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a flow chart of the molding process of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
referring to fig. 1-2, a composite process for producing carbon-carbon plates by using carbon powder waste materials comprises the following steps of taking a certain amount of long fibers, carbon powder treatment after mechanical processing and resin powder in a ratio of 4:1:
fiber dispersion treatment, namely treating long fibers by adopting methyl cellulose to prepare chopped fibers, wherein the length of the chopped fibers is 2-3 mm;
step two, the carbon powder after mechanical processing is treated, and the carbon powder after mechanical processing is ground into powder of 100 meshes and 200 meshes;
step three, preparing resin powder, namely grinding the phenolic resin powder into powder of 100-200 meshes;
step four, preparing for mixing, namely putting the products obtained in the step one, the step two and the step three into a mixer according to the ratio of 4:1:1, and uniformly mixing at the rotating speed of 80r/min for 10 min;
step five, mould pressing, namely putting the mixed powder into a prepared mould cavity for mould pressing, wherein the process flow is as follows:
a) putting the mixed powder into a prepared mould cavity, putting the mould into a flat plate hot press together, and performing hot pressing and solidification;
b) heating the hot press from room temperature to 80 ℃ for pre-heating treatment, keeping the temperature for 30min, and intermittently exhausting gas for one to two times in the process;
c) adding initial pressure of 1Mpa and supplementary pressure of 0.5Mpa, and maintaining the pressure for 20 min;
d) heating to 100 deg.C, maintaining the temperature for 30min, and pressurizing to 10 Mpa;
e) continuously heating to 140 deg.C, and pressurizing to 12 Mpa;
f) continuously heating to 160 ℃, pressurizing to 16Mpa, preserving heat for 1h and maintaining pressure for 30 min.
Example 2:
referring to fig. 1-2, a composite process for producing carbon-carbon plates by using carbon powder waste materials comprises the following steps of taking a certain amount of long fibers, carbon powder treatment after mechanical processing and resin powder in a ratio of 4:1:
fiber dispersion treatment, namely treating long fibers by adopting methyl cellulose to prepare chopped fibers, wherein the length of the chopped fibers is 2-3 mm;
step two, the carbon powder after mechanical processing is treated, and the carbon powder after mechanical processing is ground into powder of 100 meshes and 200 meshes;
step three, preparing resin powder, namely grinding the phenolic resin powder into powder of 100-200 meshes;
step four, preparing for mixing, namely putting the products obtained in the step one, the step two and the step three into a mixer according to the ratio of 4:1:1, and uniformly mixing at the rotating speed of 90r/min for 12 min;
step five, mould pressing, namely putting the mixed powder into a prepared mould cavity for mould pressing, wherein the process flow is as follows:
a) putting the mixed powder into a prepared mould cavity, putting the mould into a flat plate hot press together, and performing hot pressing and solidification;
b) heating the hot press from room temperature to 80 ℃ for pre-heating treatment, keeping the temperature for 30min, and intermittently exhausting gas for one to two times in the process;
c) adding initial pressure of 1Mpa and supplementary pressure of 0.5Mpa, and maintaining the pressure for 20 min;
d) heating to 100 deg.C, maintaining the temperature for 30min, and pressurizing to 10 Mpa;
e) continuously heating to 140 deg.C, and pressurizing to 12 Mpa;
f) continuously heating to 160 ℃, pressurizing to 16Mpa, preserving heat for 1h and maintaining pressure for 30 min.
Example 3:
referring to fig. 1-2, a composite process for producing carbon-carbon plates by using carbon powder waste materials comprises the following steps of taking a certain amount of long fibers, carbon powder treatment after mechanical processing and resin powder in a ratio of 4:1:
fiber dispersion treatment, namely treating long fibers by adopting methyl cellulose to prepare chopped fibers, wherein the length of the chopped fibers is 2-3 mm;
step two, the carbon powder after mechanical processing is treated, and the carbon powder after mechanical processing is ground into powder of 100 meshes and 200 meshes;
step three, preparing resin powder, namely grinding the phenolic resin powder into powder of 100-200 meshes;
step four, preparing for mixing, namely putting the products obtained in the step one, the step two and the step three into a mixer according to the ratio of 4:1:1, and uniformly mixing at the rotating speed of 100r/min for 15 min;
step five, mould pressing, namely putting the mixed powder into a prepared mould cavity for mould pressing, wherein the process flow is as follows:
a) putting the mixed powder into a prepared mould cavity, putting the mould into a flat plate hot press together, and performing hot pressing and solidification;
b) heating the hot press from room temperature to 80 ℃ for pre-heating treatment, keeping the temperature for 30min, and intermittently exhausting gas for one to two times in the process;
c) adding initial pressure of 1Mpa and supplementary pressure of 0.5Mpa, and maintaining the pressure for 20 min;
d) heating to 100 deg.C, maintaining the temperature for 30min, and pressurizing to 10 Mpa;
e) continuously heating to 140 deg.C, and pressurizing to 12 Mpa;
f) continuously heating to 160 ℃, pressurizing to 16Mpa, preserving heat for 1h and maintaining pressure for 30 min.
The carbon-carbon plates prepared by the embodiments 1, 2 and 3 take chopped fiber powder as a reinforcing framework and carbon powder and resin powder as reinforcing materials, and are uniformly dispersed in a reinforcing body, so that the uniformity and the bending strength of the composite plate are improved, and the porosity and the raw material cost of the plate are reduced.
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 composite process for producing carbon-carbon plates by utilizing carbon powder waste is characterized by comprising the following steps: comprises the following steps:
fiber dispersion treatment, namely treating long fibers into short fibers;
step two, the carbon powder after mechanical processing is treated, and the carbon powder after mechanical processing is ground into powder of 100 meshes and 200 meshes;
step three, preparing resin powder, namely grinding the phenolic resin powder into powder of 100-200 meshes;
step four, preparing for mixing, namely putting the products obtained in the step one, the step two and the step three into a mixer according to the proportion of 4:1:1 and mixing uniformly;
step five, mould pressing, namely putting the mixed powder into a prepared mould cavity for mould pressing, wherein the process flow is as follows:
a) putting the mixed powder into a prepared mould cavity, putting the mould into a flat plate hot press together, and performing hot pressing and solidification;
b) heating the hot press from room temperature to 80 ℃ for pre-heating treatment, keeping the temperature for 30min, and intermittently exhausting gas for one to two times in the process;
c) adding initial pressure of 1Mpa and supplementary pressure of 0.5Mpa, and maintaining the pressure for 20 min;
d) heating to 100 deg.C, maintaining the temperature for 30min, and pressurizing to 10 Mpa;
e) continuously heating to 140 deg.C, and pressurizing to 12 Mpa;
f) continuously heating to 160 ℃, pressurizing to 16Mpa, preserving heat for 1h and maintaining pressure for 30 min.
2. A composite process for producing carbon-carbon plates by using carbon powder waste as claimed in claim 1, wherein: the dispersant of the dispersed fiber is methyl cellulose.
3. A composite process for producing carbon-carbon plates by using carbon powder waste as claimed in claim 1, wherein: the bending strength of the plate is 180 Mpa.
4. A composite process for producing carbon-carbon plates by using carbon powder waste as claimed in claim 1, wherein: the porosity of the plate is 45-50%, and the density is 0.9-1.1g/cm 3.
5. A composite process for producing carbon-carbon plates by using carbon powder waste as claimed in claim 2, wherein: the length of the chopped fiber prepared by treating the long fiber in the first step by adopting methyl cellulose is 2-3 mm.
6. A composite process for producing carbon-carbon plates by using carbon powder waste as claimed in claim 1, wherein: and the mixer in the fourth step is a bedroom mixer.
7. A composite process for producing carbon-carbon plates by using carbon powder waste as claimed in claim 1, wherein: in the fourth step, the rotating speed of the mixer is 80-100r/min, and the mixing time is 10-15 min.
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| CN202011382005.7A CN112571818A (en) | 2020-12-01 | 2020-12-01 | Composite process for producing carbon-carbon plate by using carbon powder waste |
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| CN202011382005.7A CN112571818A (en) | 2020-12-01 | 2020-12-01 | Composite process for producing carbon-carbon plate by using carbon powder waste |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195260A (en) * | 2022-08-02 | 2022-10-18 | 上海康碳复合材料科技有限公司 | Preparation method of carbon powder whisker reinforced carbon cloth laminated plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849361A (en) * | 2018-12-30 | 2019-06-07 | 镇江顺龙新材料技术开发有限公司 | A kind of automobile polypropylene nitrile carbon fiber/phenolic resin bonnet preparation method |
| CN110105077A (en) * | 2019-04-10 | 2019-08-09 | 嘉兴启晟碳材料有限公司 | A kind of technique using rim charge production carbon carbon composite board |
| CN111039691A (en) * | 2020-01-13 | 2020-04-21 | 陕西美兰德炭素有限责任公司 | Preparation method of carbon-carbon composite material plate |
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2020
- 2020-12-01 CN CN202011382005.7A patent/CN112571818A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849361A (en) * | 2018-12-30 | 2019-06-07 | 镇江顺龙新材料技术开发有限公司 | A kind of automobile polypropylene nitrile carbon fiber/phenolic resin bonnet preparation method |
| CN110105077A (en) * | 2019-04-10 | 2019-08-09 | 嘉兴启晟碳材料有限公司 | A kind of technique using rim charge production carbon carbon composite board |
| CN111039691A (en) * | 2020-01-13 | 2020-04-21 | 陕西美兰德炭素有限责任公司 | Preparation method of carbon-carbon composite material plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115195260A (en) * | 2022-08-02 | 2022-10-18 | 上海康碳复合材料科技有限公司 | Preparation method of carbon powder whisker reinforced carbon cloth laminated plate |
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Application publication date: 20210330 |