CN103101904A - Preparation method of foam carbon with pressure-resistant and shock-absorbing characteristics - Google Patents
Preparation method of foam carbon with pressure-resistant and shock-absorbing characteristics Download PDFInfo
- Publication number
- CN103101904A CN103101904A CN2013100722431A CN201310072243A CN103101904A CN 103101904 A CN103101904 A CN 103101904A CN 2013100722431 A CN2013100722431 A CN 2013100722431A CN 201310072243 A CN201310072243 A CN 201310072243A CN 103101904 A CN103101904 A CN 103101904A
- Authority
- CN
- China
- Prior art keywords
- preparation
- absorbing characteristics
- shock absorbing
- withstand voltage
- carbon foam
- 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.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052799 carbon Inorganic materials 0.000 title abstract 4
- 239000006260 foam Substances 0.000 title abstract 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 5
- 239000004917 carbon fiber Substances 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 239000002243 precursor Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 3
- 229920000881 Modified starch Polymers 0.000 claims abstract description 3
- 239000004368 Modified starch Substances 0.000 claims abstract description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 3
- 235000019426 modified starch Nutrition 0.000 claims abstract description 3
- 230000035939 shock Effects 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 2
- 229930006000 Sucrose Natural products 0.000 claims description 2
- 238000005087 graphitization Methods 0.000 claims description 2
- 229910052622 kaolinite Inorganic materials 0.000 claims description 2
- 238000002203 pretreatment Methods 0.000 claims description 2
- -1 sulfonyl hydrazines compound Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 235000021552 granulated sugar Nutrition 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Carbon And Carbon Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention relates to a preparation method of foam carbon with pressure-resistant and shock-absorbing characteristics. The foam carbon comprises raw materials of vacuum residue, a foaming agent, modified starch, white granulated sugar, kaolin, carbon fiber and nickel nitrate. The preparation method comprises the steps of: firstly, mixing raw materials, heating, stirring, and homogenizing to prepare a precursor, conducting carbonizing treatment and graphitizing treatment under nitrogen protection, and cooling to obtain foam carbon with pressure-resistant and shock-absorbing characteristics. The preparation method is simple in production process, short in flow, easily controlled in operation, low in cost, beneficial for large-scale popularization and application.
Description
Technical field
The present invention relates to a kind of preparation method with Carbon foam of withstand voltage shock absorbing characteristics.
Background technology
Carbon foam is a kind of light porous material with tridimensional network that is comprised of hole bubble and interconnective hole bubble wall.Carbon foam is a kind of excellent performance, broad-spectrum type material.The microtexture of hole wall according to it can be divided into it: greying and non-graphitized Carbon foam.Carbon foam is except the traditional performance with charcoal class material, also have that density is little, intensity is high, sound absorption, noise reduction are good, anti-thermal shock, be convenient to the mechanical characteristics such as processing, the physics and chemistries such as good conduction, heat transfer, suction ripple, corrosion-resistant, selective adsorption are arranged, with it and metal or nonmetally carry out compoundly, can obtain the high performance structural material.The performance that these are special makes Carbon foam have great application potential in a lot of technical fields such as petrochemical complex, space flight and aviation, automobile and communications and transportation, food, light industry, pharmacy, electronics.Adopt different starting material, different preparation method, different manufacturing process technology parameter and the exploitation of technique itself, the Carbon foam structure and the performance that make also have larger difference.
Because pitch is easy greying raw material, the Carbon foam take pitch as waste can the orderly carbonization structure of height of formation usually, and superperformance is arranged, and as performances such as heat conduction, conductions, is the raw material of widespread use comparatively at present.But the foreign matter content of pitch is high, and the range of molecular weight distributions of composition is wide.Generally need to proceed the processing such as intensive, the hydrogenation of heat and solvent extraction, in the hope of the rational component of enrichment, technological operation is difficulty comparatively.
Summary of the invention
The present invention is to provide that a kind of raw material is cheap and easy to get, technique is relatively simple, the preparation method of excellent product performance and the stable Carbon foam with withstand voltage shock absorbing characteristics.
The present invention solves the problems of the technologies described above with following technical scheme:
Initial feed component and mass percent are:
| Component | Mass percentage content |
| Vacuum residuum | 70%-80% |
| Whipping agent | 4%-6% |
| Modified starch | 3%-4% |
| White sugar | 3% |
| White kaolin | 3%-5% |
| Carbon fiber | 8%-9% |
| Nickelous nitrate | 2% |
Step of preparation process is:
With all raw materials at room temperature disposable integral mix, stir and be heated to 130-150 ℃, then use the ultrasonic wave homogenizing, after homogenizing the pulpous state precursor;
⑵ keep under 55-65 ℃ of state of temperature, the pulpous state precursor put into mould enrich; Whole mould is put into the tubular type heating container that is full of industrial nitrogen, and heating is cured pre-treatment, keeps the interior nitrogen pressure of heating container at 5-8Kpa;
⑶ rate of heating is controlled: at the uniform velocity rise to 130-150 ℃ from room temperature with 2-4h, insulation 2-3h; Then be heated to 1100-1200 ℃, insulation 3-4h, heat-up rate: 2-3 ℃/min; Then continuing heats up carries out graphitization processing, and rate of heating is controlled at 18-25 ℃/min, and temperature is controlled at 2500-2800 ℃, insulation 1.5-2h; Rear cooling, cooling rate is controlled at: 15-20 ℃/min, get product to room temperature.
Whipping agent is the azo-compound of mass ratio 40%-50% and the sulfonyl hydrazines compound of 60%-50%.Carbon fiber length is 1-3mm.
Kaolinic composition is take kaolinite as main, and content is in 90% left and right, and granularity is less than 22mm; Have that whiteness is high, matter is soft, suspend in water, good plasticity-and high cohesiveness, good electrical insulating property, antiacid dissolubility, resistivity against fire and low cation exchange capacity.
Stirring velocity is 40-60n/min.
The irradiation power of ultrasonic wave homogenizing is 1500-2000w, and irradiation time is 10-25min.
A kind of preparation method with Carbon foam of withstand voltage shock absorbing characteristics of the present invention, production technique is simple, and flow process is short, easily-controlled operation, cost is low, is beneficial to large-scale promotion application.
Embodiment
Embodiment 1:
Following component and mass percent mediation thereof are formed:
Above component summation is 100%.
Embodiment 2:
Following component and mass percent mediation thereof are formed:
Above component summation is 100%.
Embodiment 3:
Following component and mass percent mediation thereof are formed:
Above component summation is 100%.
The main performance index of the finished product of embodiment 2:
| Volume density g/cm 3 | 0.32-0.58 |
| Ultimate compression strength MPa | 25-36 |
| Tensile strength | 2-7Mpa |
| Compression modulus | 480-689MPa |
| Tensile modulus | 610-860MP |
| Void content % | 76-85 |
| Folding strength MPa | 0.8-1.5 |
| Specific heat: KJ/Kg. ℃ | 0.73(100℃)，1.47(1000℃) |
| Thermal expansivity | 1.25-3.5×10 -6.c -1 |
| Thermal conductivity KJ/m.h. ℃ | 0.64(100℃)；10.5×10 -6(1000℃) |
| Mean pore size/μ .m | 60-80 |
| Specific surface area/(cm 2/cm 3) | 610-878 |
| Volume specific resistance/Ω .cm | Vertical 0.034-0.06, laterally 0.043-0.096 |
Claims (6)
1. preparation method with Carbon foam of withstand voltage shock absorbing characteristics is characterized in that:
Initial feed component and mass percent are:
Step of preparation process is:
With all raw materials at room temperature disposable integral mix, stir and be heated to 130-150 ℃, then use the ultrasonic wave homogenizing, after homogenizing the pulpous state precursor;
⑵ keep under 55-65 ℃ of state of temperature, the pulpous state precursor put into mould enrich; Whole mould is put into the tubular type heating container that is full of industrial nitrogen, and heating is cured pre-treatment, keeps the interior nitrogen pressure of heating container at 5-8Kpa;
⑶ rate of heating is controlled: at the uniform velocity rise to 130-150 ℃ from room temperature with 2-4h, insulation 2-3h; Then be heated to 1100-1200 ℃, insulation 3-4h, heat-up rate: 2-3 ℃/min; Then continuing heats up carries out graphitization processing, and rate of heating is controlled at 18-25 ℃/min, and temperature is controlled at 2500-2800 ℃, insulation 1.5-2h; Rear cooling, cooling rate is controlled at: 15-20 ℃/min, get product to room temperature.
2. the preparation method with Carbon foam of withstand voltage shock absorbing characteristics as claimed in claim 1, is characterized in that whipping agent is the azo-compound of mass ratio 40%-50% and the sulfonyl hydrazines compound of 60%-50%.
3. the preparation method with Carbon foam of withstand voltage shock absorbing characteristics as claimed in claim 1, is characterized in that carbon fiber length is 1-3mm.
4. the preparation method with Carbon foam of withstand voltage shock absorbing characteristics as claimed in claim 1, is characterized in that kaolinic composition take kaolinite as main, and content is in 90% left and right, and granularity is less than 22mm.
5. the preparation method with Carbon foam of withstand voltage shock absorbing characteristics as claimed in claim 1, is characterized in that stirring velocity is 40-60n/min.
6. the preparation method with Carbon foam of withstand voltage shock absorbing characteristics as claimed in claim 1, the irradiation power that it is characterized in that the ultrasonic wave homogenizing is 1500-2000w, irradiation time is 10-25min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310072243.1A CN103101904B (en) | 2013-03-06 | 2013-03-06 | Preparation method of foam carbon with pressure-resistant and shock-absorbing characteristics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310072243.1A CN103101904B (en) | 2013-03-06 | 2013-03-06 | Preparation method of foam carbon with pressure-resistant and shock-absorbing characteristics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103101904A true CN103101904A (en) | 2013-05-15 |
| CN103101904B CN103101904B (en) | 2015-06-17 |
Family
ID=48310152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310072243.1A Expired - Fee Related CN103101904B (en) | 2013-03-06 | 2013-03-06 | Preparation method of foam carbon with pressure-resistant and shock-absorbing characteristics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103101904B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698415A (en) * | 2016-12-29 | 2017-05-24 | 陈大明 | High-strength carbon foam (CF) material and preparation method thereof |
| CN109553416A (en) * | 2018-12-15 | 2019-04-02 | 华南理工大学 | A kind of preparation method of foamy carbon |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587033A (en) * | 2004-09-10 | 2005-03-02 | 东华大学 | Process for preparing asphalt foam material |
| CN102502575A (en) * | 2011-10-24 | 2012-06-20 | 上海理工大学 | Method for preparing carbon foam by using foaming agent |
-
2013
- 2013-03-06 CN CN201310072243.1A patent/CN103101904B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587033A (en) * | 2004-09-10 | 2005-03-02 | 东华大学 | Process for preparing asphalt foam material |
| CN102502575A (en) * | 2011-10-24 | 2012-06-20 | 上海理工大学 | Method for preparing carbon foam by using foaming agent |
Non-Patent Citations (2)
| Title |
|---|
| 吴明铂，邱介山等: "《石油基碳质材料的制备及其应用》", 31 December 2010 * |
| 鲍英: "中间相沥青基泡沫炭的可控制备及若干应用探索", 《中国博士学位论文全文数据库工程科技1辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698415A (en) * | 2016-12-29 | 2017-05-24 | 陈大明 | High-strength carbon foam (CF) material and preparation method thereof |
| CN109553416A (en) * | 2018-12-15 | 2019-04-02 | 华南理工大学 | A kind of preparation method of foamy carbon |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103101904B (en) | 2015-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Xu et al. | Thermal conductive composites reinforced via advanced boron nitride nanomaterials | |
| Wu et al. | Controllable synthesis of a robust sucrose-derived bio-carbon foam with 3D hierarchical porous structure for thermal insulation, flame retardancy and oil absorption | |
| Kim et al. | Preparation and characterization of graphite foams | |
| CN101717081B (en) | Carbon/carbon composite material based on nano graphite sheet and preparation method thereof | |
| Tsyntsarski et al. | Porosity development during steam activation of carbon foams from chemically modified pitch | |
| CN105590757A (en) | Carbon nanotube/graphene composite gel and preparation method thereof | |
| CN103043644A (en) | Method for preparing granulated carbon structure with meso-porous | |
| CN103030974A (en) | Light flexible graphene/polymer foam electromagnetic shielding material, preparation method and application thereof | |
| CN107619496B (en) | Foamed polymer composite material with bimodal closed-cell structure and preparation method thereof | |
| CN104262588A (en) | Graphene oxide-based curing agent as well as preparation and use thereof | |
| CN103626153B (en) | Boron series catalysts is adopted to prepare the method for graphitizable foams charcoal | |
| CN111592377B (en) | Electromagnetic shielding foam composite material and preparation method and application thereof | |
| CN101961644B (en) | Chloride-carbonaceous skeleton composite adsorbent and preparation method thereof | |
| CN103112843B (en) | Method for preparing foam carbon with high thermal conductivity | |
| CN108854874B (en) | Ultra-pure carbon aerogel with ultra-high specific surface area based on air-activated pore-forming and preparation method thereof | |
| CN102702562A (en) | Preparation method for thermoplastic polyimide foaming particle and formed body thereof | |
| CN103101904B (en) | Preparation method of foam carbon with pressure-resistant and shock-absorbing characteristics | |
| CN108084484B (en) | Lightweight conductive heat-insulation composite material and preparation method and system thereof | |
| CN101434388A (en) | Preparation of small pore diameter carbon foam | |
| CN108752722B (en) | Antistatic EVA foam composite material and preparation method thereof | |
| CN102616767A (en) | Foam carbon composite material and preparation method thereof | |
| CN108609603B (en) | Carbon foam containing graphene coating and preparation method thereof | |
| CN106517195A (en) | Method for preparing porous carbon from phosphate activated biomass and applying porous carbon to supercapacitors | |
| CN114031817A (en) | COFs modified ammonium polyphosphate flame retardant, preparation method and application thereof, and flame-retardant epoxy resin | |
| CN110452480B (en) | Preparation method of ultra-light heat-insulating flexible aerogel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 |