CN105220274A - The preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon - Google Patents
The preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon Download PDFInfo
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- CN105220274A CN105220274A CN201510754316.4A CN201510754316A CN105220274A CN 105220274 A CN105220274 A CN 105220274A CN 201510754316 A CN201510754316 A CN 201510754316A CN 105220274 A CN105220274 A CN 105220274A
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Abstract
The preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon, relate to the brilliant material preparation method of a kind of asphalt base carbon fiber carbon, first pitch is put into melt spinning machine spray silk charging basket by the present invention, loads asphalt-based carbon fiber shaped device, under protection gas, is warming up to spinning temperature, the precursor obtained after spray silk is placed on load sample platform, put into high temperature furnace, carry out heating up and oxidation processes, terminate rear natural cooling protection, carry out carbonization treatment, terminate rear cooling naturally and obtain asphalt base carbon fiber; Again asphalt base carbon fiber is carried out that ball milling is processing modified obtains the brilliant material of carbon.The brilliant material of this carbon can be got along amiably and peacefully with concrete, can be used as heating product for building, has adaptive surface extensive, the advantages such as weatherability is good, cost is low, properties of product are stable, long service life.
Description
Technical field
The present invention relates to the brilliant material preparation method of a kind of asphalt base carbon fiber carbon, particularly relate to the preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon.
Background technology
Carbon fiber has conduction, heat conduction, anti-oxidant (300 DEG C of Long-Time Service of finishing class), light weight, diameter thin (<7 μm), the features such as temperature-coefficient of electrical resistance is little, electric performance stablity.Be easy to suitability for industrialized production, be used widely in conductive exothermal material.
Consider from the many factors such as difficulty or ease and cost of Carbon yield, production technology, international market only has polyacrylonitrile (PAN) base carbon fibre, viscose-based carbon fiber and asphalt base carbon fiber achieve industrialization.Wherein, be that raw material manufactures high strength with PAN, the PAN base carbon fibre of medium modulus, because its production technology is comparatively simple, and the good mechanical performance of product, therefore purposes is comparatively extensive.But the carbonization rate of PAN base carbon fibre is low, technical difficulty is large, equipment is complicated, and cost is higher.
And the carbonization yield of asphalt base carbon fiber is higher than PAN base carbon fibre, material asphalt price is also cheap more than PAN.High-performance asphalt base carbon fiber obtains the carbon fiber that degree of graphitization is high, modulus is high under lower heat treatment temperature.In addition, it also have thermal conductivity factor high, conduct electricity very well and the advantage such as thermal coefficient of expansion is little.
Summary of the invention
The object of the present invention is to provide the preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon, the present invention can inherit the advantage of the brilliant material of polyacrylonitrile-based carbon fibre carbon, can overcome again the novel regeneration product of its critical defect.The brilliant material of asphalt base carbon fiber carbon, as heating product for building, has adaptive surface extensive, the advantage of the advantages such as weatherability is good, cost is low, properties of product are stablized, long service life.
The object of the invention is to be achieved through the following technical solutions:
A preparation method for the brilliant material of asphalt base carbon fiber carbon, comprises the following steps:
1) after being heated up under inert gas shielding by pitch, constant temperature stirs, and is cooled to room temperature after terminating, obtained mix asphalt raw material;
2) mix asphalt raw material is put into melt spinning machine spray silk charging basket, load asphalt-based carbon fiber shaped device, under protection gas, be warming up to spinning temperature, start to spray silk at spinning nozzle place;
3) precursor is placed on load sample platform, puts into high temperature furnace, heating schedule be set and carry out oxidation processes, after cooling, obtaining oxidized fibre;
4) through step 3) oxidized fibre crossed of crosslinking Treatment is placed on load sample platform, puts into high temperature furnace intensification carbonization treatment, after cooling, obtain asphalt base carbon fiber;
5) asphalt base carbon fiber is put into ball mill and is carried out deep processing, repeated multiple times, until produce the pitch base carbon crystalline flour of uniform diameter at 1 ~ 2 μ.
The brilliant material preparation method of described a kind of asphalt base carbon fiber carbon, pitch is one or more in coal tar pitch, asphalt and natural bitumen three kinds.
The preparation method of the brilliant material of described a kind of asphalt base carbon fiber carbon, under nitrogen protection, churned mechanically temperature is 350 ~ 400 DEG C, and mixing time is 0.5 ~ 2h.
The preparation method of the brilliant material of described a kind of asphalt base carbon fiber carbon, in step 2) in, the program arranging intensification, with 3 DEG C/min, rises to 340 DEG C from room temperature, then rises to spinning temperature with 2 DEG C/min.
The preparation method of the brilliant material of described a kind of asphalt base carbon fiber carbon, in step 2) in, pitch-based fiber shaped device is wrapped on curled hair cylinder after spinning nozzle place obtains precursor, regulate the rotating speed of curled hair cylinder, rotating speed is 200 ~ 900m/min, make fiber uniform winding, by the diameter regulating extrusion speed also can control fiber, extrusion speed is 1.9 × 10
-7~ 3.8 × 10
-7m
3/ min.
The preparation method of the brilliant material of described a kind of asphalt base carbon fiber carbon, in step 4) in, the program of intensification is raised to 1800 DEG C with 40 DEG C/min from room temperature, insulation 20min.
Advantage of the present invention and effect are:
The present invention can inherit the advantage of the brilliant material of polyacrylonitrile-based carbon fibre carbon, can overcome again the novel regeneration product of its critical defect.The brilliant material of asphalt base carbon fiber carbon, as heating product for building, has adaptive surface extensive, the advantage of the advantages such as weatherability is good, cost is low, properties of product are stablized, long service life.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1:
Coal tar pitch raw material is put into melt spinning machine spray silk charging basket, load asphalt-based carbon fiber shaped device, under protection gas, be warming up to spinning temperature, start to spray silk;
The precursor obtained after spray silk is placed on load sample platform, puts into high temperature furnace, carry out heating up and oxidation processes, terminate rear cooling naturally and obtain oxidized coal pyrobitumen base fiber;
The oxidized asphalt base fiber that above-mentioned crosslinking Treatment is crossed is placed on load sample platform, puts into high temperature furnace, heat up, pass into inert gas shielding simultaneously, carry out carbonization treatment, terminate rear cooling naturally, obtain coal tar pitch base carbon fibre; Asphalt base carbon fiber is put into ball mill and carry out deep processing, repeated multiple times, until produce the coal tar pitch base carbon crystalline flour of uniform diameter at 1 ~ 2 μ;
Embodiment 2:
Natural bitumen raw material is put into melt spinning machine spray silk charging basket, load asphalt-based carbon fiber shaped device, under protection gas, be warming up to spinning temperature, start to spray silk;
The precursor obtained after spray silk is placed on load sample platform, puts into high temperature furnace, carry out heating up and oxidation processes, terminate rear cooling naturally and obtain natural bitumen base fiber;
The oxidized asphalt base fiber that above-mentioned crosslinking Treatment is crossed is placed on load sample platform, puts into high temperature furnace, heat up, pass into inert gas shielding simultaneously, carry out carbonization treatment, terminate rear cooling naturally, obtain natural bitumen base carbon fibre;
Asphalt base carbon fiber is put into ball mill and carry out deep processing, repeated multiple times, until produce the natural bitumen base carbon crystalline flour of uniform diameter at 1 ~ 2 μ;
Embodiment 3:
Natural bitumen and asphalt are heated up under inert gas shielding, in the molten state constant temperature mechanical agitation, cool to obtain mix asphalt raw material;
Mix asphalt raw material is put into melt spinning machine spray silk charging basket, load asphalt-based carbon fiber shaped device, under protection gas, be warming up to spinning temperature, start to spray silk;
The precursor obtained after spray silk is placed on load sample platform, puts into high temperature furnace, carry out heating up and oxidation processes, terminate rear cooling naturally and obtain oxidation mix asphalt base fiber;
The oxidized asphalt base fiber that above-mentioned crosslinking Treatment is crossed is placed on load sample platform, puts into high temperature furnace, heat up, pass into inert gas shielding simultaneously, carry out carbonization treatment, terminate rear cooling naturally, obtain mix asphalt base carbon fibre;
Asphalt base carbon fiber is put into ball mill and carry out deep processing, repeated multiple times, until produce the mix asphalt base carbon crystalline flour of uniform diameter at 1 ~ 2 μ.
Claims (6)
1. a preparation method for the brilliant material of asphalt base carbon fiber carbon, is characterized in that: comprise the following steps:
1) after being heated up under inert gas shielding by pitch, constant temperature stirs, and is cooled to room temperature after terminating, obtained mix asphalt raw material;
2) mix asphalt raw material is put into melt spinning machine spray silk charging basket, load asphalt-based carbon fiber shaped device, under protection gas, be warming up to spinning temperature, start to spray silk at spinning nozzle place;
3) precursor is placed on load sample platform, puts into high temperature furnace, heating schedule be set and carry out oxidation processes, after cooling, obtaining oxidized fibre;
4) through step 3) oxidized fibre crossed of crosslinking Treatment is placed on load sample platform, puts into high temperature furnace intensification carbonization treatment, after cooling, obtain asphalt base carbon fiber;
5) asphalt base carbon fiber is put into ball mill and is carried out deep processing, repeated multiple times, until produce the pitch base carbon crystalline flour of uniform diameter at 1 ~ 2 μ.
2. the brilliant material preparation method of a kind of asphalt base carbon fiber carbon according to claim 1, is characterized in that, pitch is one or more in coal tar pitch, asphalt and natural bitumen three kinds.
3. the preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon as claimed in claim 1, it is characterized in that: under nitrogen protection, churned mechanically temperature is 350 ~ 400 DEG C, mixing time is 0.5 ~ 2h.
4. the preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon as claimed in claim 1, is characterized in that: in step 2) in, the program arranging intensification, with 3 DEG C/min, rises to 340 DEG C from room temperature, then rises to spinning temperature with 2 DEG C/min.
5. the preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon as claimed in claim 1, it is characterized in that: in step 2) in, pitch-based fiber shaped device is wrapped on curled hair cylinder after spinning nozzle place obtains precursor, regulate the rotating speed of curled hair cylinder, rotating speed is 200 ~ 900m/min, make fiber uniform winding, by the diameter regulating extrusion speed also can control fiber, extrusion speed is 1.9 × 10
-7~ 3.8 × 10
-7m
3/ min.
6. the preparation method of the brilliant material of a kind of asphalt base carbon fiber carbon as claimed in claim 1, is characterized in that: in step 4) in, the program of intensification is raised to 1800 DEG C with 40 DEG C/min from room temperature, insulation 20min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417244A (en) * | 2017-08-22 | 2017-12-01 | 安徽艾米伦特建材科技有限公司 | Insulation material and preparation method thereof |
| CN107540339A (en) * | 2017-08-22 | 2018-01-05 | 安徽艾米伦特建材科技有限公司 | Antistatic warming plate and preparation method thereof |
| CN107916466A (en) * | 2017-11-28 | 2018-04-17 | 株洲科威铁路配件有限公司 | Carbon fibre material and preparation method and application, the method for preparation pantograph sliding block |
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| US5037697A (en) * | 1986-01-22 | 1991-08-06 | Nitto Boseki Co., Ltd. | Carbon fiber and process for producing the same |
| CN1936434A (en) * | 2006-05-12 | 2007-03-28 | 陆上驰 | Carbon crystal electrothermo-material and preparing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107417244A (en) * | 2017-08-22 | 2017-12-01 | 安徽艾米伦特建材科技有限公司 | Insulation material and preparation method thereof |
| CN107540339A (en) * | 2017-08-22 | 2018-01-05 | 安徽艾米伦特建材科技有限公司 | Antistatic warming plate and preparation method thereof |
| CN107916466A (en) * | 2017-11-28 | 2018-04-17 | 株洲科威铁路配件有限公司 | Carbon fibre material and preparation method and application, the method for preparation pantograph sliding block |
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Application publication date: 20160106 |