CN101134837A - Method for preparing filling type high polymer conductive porous composite material - Google Patents
Method for preparing filling type high polymer conductive porous composite material Download PDFInfo
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- CN101134837A CN101134837A CNA2007100499170A CN200710049917A CN101134837A CN 101134837 A CN101134837 A CN 101134837A CN A2007100499170 A CNA2007100499170 A CN A2007100499170A CN 200710049917 A CN200710049917 A CN 200710049917A CN 101134837 A CN101134837 A CN 101134837A
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Abstract
The present invention relates to preparation process of one stuffing porous conductive polymer material. The preparation process includes the following steps: preparing organic solvent solution of polymer, high speed mixing of the organic solvent solution of polymer and conductive material, and pressing to form. The process of the present invention is simple and reliable, and has low production cost and stable product quality.
Description
Technical field
The present invention relates to a kind of preparation method of filling type high polymer conductive porous composite material.
Background technology
Composite porous possess following two key elements: the one, include a large amount of holes in the material; The 2nd, contained hole is used to satisfy the use properties pointer that certain or some design requirements are expected to reach.Porous material not only keeps the premium properties of body material, but also possesses special performances such as density is little, specific surface area big, energy-absorbing damping, sound-deadening and noise-reducing, electromagnetic shielding, water-permeable and air permeable, lower thermal conductivity.Therefore, porous material can as filter and separate, heat exchange (porous metal), heat insulation and acoustic absorption material, support of the catalyst, ion-exchange, biomaterial, electrode materials etc.Conductive porous material is the porous material that satisfies certain conductivity, comprise a large amount of holes, have an excellent conductive performance.Conductive porous material has wide application prospect in electrochemical field.The method for making of porous material, generally condensed state structure and the forming process principle according to body material designs.The condensed state structure of metal, pottery and plastics and forming process principle are quite similar aspect a lot, so they also have a lot of quite similar porous material method for makings, such as: the powder sintered method of forming, sol-gel processing, interpolation whipping agent, interpolation pore-forming material～dissolution method etc.The method for making of conductive porous material generally adds conductive filler material, according to the method for making preparation of porous material.Usually adopt activated carbon, tetrafluoroethylene, pore former compacting such as carbon dioxide process carbon electrode, dissolve the pore former pore-forming then.A lot of very advanced method for makings were also arranged in recent years, as: sol-gel processing, mixed polymer carborization, masterplate carborization etc.
Use the porous conductive material of pore former-dissolution method preparation, in the demand that is difficult to satisfy electrical equipment and electrochemical industry aspect porosity, specific surface, the electroconductibility; Problems such as using advance technology is such as preparation such as sol-gel processing, mixed polymer carborization, masterplate carborization porous conductive material, and ubiquity cost height, production efficiency are low.
Summary of the invention
The object of the present invention is to provide the preparation method of a kind of simple and reliable process, constant product quality, filling type high polymer conductive porous composite material that production cost is low.
The technical solution used in the present invention is as follows:
A, preparation superpolymer organic solvent solution
The superpolymer organic solvent solution of preparation 0.01g/ml～1g/ml concentration; For superpolymer is polycarbonate, and used organic solvent can be a kind of in ethylene dichloride, methylene dichloride, trichloroethane, trichloromethane, the tetrachloroethane; For the superpolymer polystyrene, used organic solvent can be a kind of in benzene, toluene, ethylene dichloride, methylene dichloride, the ethyl acetate.
The high-speed mixing of b, superpolymer organic solvent solution and electro-conductive material
According to the corresponding standard that adds 2g～10g electro-conductive material of every 10ml superpolymer organic solvent solution load weighted electro-conductive material is added in the high-speed mixer mixing kettle, then load weighted superpolymer organic solvent solution is added in the mixing kettle of high-speed mixer in batches, each add-on is 20%～25% of total solution amount, the each adding after the solution, start high-speed mixer and mix, all be added in the mixing kettle of high-speed mixer until all high polymeric solutions by this program;
C, compression moulding
At pressure 15～30MPa, under the condition that temperature is 160～280 ℃, adopt vulcanizing press compression moulding, 5～60 minutes press times; Colded pressing on vulcanizing press after finishing 5～10 minutes, pressure 15～30MPa makes high polymer conductive porous composite material sheet material.
Further scheme is: described conductive filler material is a kind of in acetylene carbon black, electrically conductive graphite, the conductive carbon fibre.
Further scheme is: the mixing time of superpolymer organic solvent solution and electro-conductive material is 60～120 seconds among the step b, and the high-speed mixer rotating speed is 1000～3000 revolutions per seconds.
The present invention adopts the method for high-speed mixing one compression moulding, the goods of preparation filling type high polymer conductive porous composite material, and simple and reliable process, constant product quality, production cost is low, has implementary value and economic benefit preferably.
Description of drawings
Fig. 1 is that the product of the embodiment of the invention 1 amplifies 5000 times morphological structure figure;
Fig. 2 is that the product of the embodiment of the invention 1 amplifies 10000 times morphological structure figure.
Embodiment
Below with specific embodiment technical scheme of the present invention is described, but protection scope of the present invention is not limited thereto.
Embodiment 1:
(1) compound concentration is polycarbonate/dichloroethane solution 1L of 0.2g/ml.
(2) mix:, pour load weighted acetylene carbon black into the high-speed mixer mixing kettle according to the standard of the corresponding 2g of adding of every 10ml superpolymer organic solvent solution acetylene carbon black; Then measured polycarbonate solution gradation is poured into the mixing kettle of high-speed mixer, pour 250 milliliters at every turn into; After pouring at every turn, start high-speed mixer and mixed for 100 seconds, 2000 revolutions per seconds of rotating speeds; Fallen until whole polycarbonate solutions by this program; Make polycarbonate/acetylene carbon black conductive porous composite material.
(3) compacting: the material with previous step makes, at pressure 25MPa, under the condition that temperature is 220 ℃, adopt the vulcanizing press moulding, 10 minutes press times; Colded pressing on vulcanizing press after finishing 8 minutes, pressure 20MPa makes the conductive porous composite material thin slice.
According to the material for preparing above, use the liquid nitrogen brittle failure to appoint and get a section, observe by scanning electronic microscope (SEM), obtain the morphological structure figure of product of the present invention.Scanning electronic microscope (SEM): JSM～5900LV type, Jeol Ltd..Fig. 1 amplifies 5000 times, and scale is 5 μ m among the figure; Fig. 2 amplifies 10000 times, and scale is 1 μ m among the figure.The conductive porous composite material cross section that present embodiment is made is to be entwined by the aggregate of the resin fibre of the about 0.1 μ m of diameter and acetylene carbon black is staggered, the grid aperture from 0.1 μ m to 5 μ m, macromolecule resin in this material exists with fiber form, do not form external phase, thereby the shared weight ratio of the macromolecule resin in the material or volume ratio are very low, conductive carbon black in the material just can closely contact and link to each other like this, for the electric conductivity of material provides condition; Shawinigan black itself is porous simultaneously, and the porosity of material is very high like this.
Embodiment 2:
(1) compound concentration is polystyrene/dichloroethane solution 1L of 0.01g/ml.
(2) mix:, pour load weighted electrically conductive graphite into the high-speed mixer mixing kettle according to the standard of the corresponding 5g of adding of every 10ml superpolymer organic solvent solution electrically conductive graphite; Then measured polystyrene solution gradation is poured into the mixing kettle of high-speed mixer, pour 200 milliliters at every turn into; After pouring at every turn, start high-speed mixer and mixed for 60 seconds, 3000 revolutions per seconds of rotating speeds; Fallen until whole polystyrene/dichloroethane solutions by this program; Make polystyrene/electrically conductive graphite conductive porous composite material.
(3) compacting: the material with previous step makes, at pressure 15MPa, under the condition that temperature is 280 ℃, adopt the vulcanizing press moulding, 5 minutes press times; Colded pressing on vulcanizing press after finishing 5 minutes, pressure 30MPa makes the conductive porous composite material thin slice.
Embodiment 3:
(1) compound concentration is polystyrene/ethyl acetate solution 1L of 1g/ml.
(2) mix:, pour load weighted conductive carbon fibre into the high-speed mixer mixing kettle according to the standard of the corresponding 10g of adding of every 10ml superpolymer organic solvent solution conductive carbon fibre; Then measured polystyrene solution gradation is poured into the mixing kettle of high-speed mixer, pour 200 milliliters at every turn into; After pouring at every turn, start high-speed mixer and mixed for 120 seconds, 1000 revolutions per seconds of rotating speeds; Fallen until whole polystyrene/ethyl acetate solutions by this program; Make polystyrene/conductive carbon fibre conductive porous composite material.
(3) compacting: the material with previous step makes, at pressure 30MPa, under the condition that temperature is 160 ℃, adopt the vulcanizing press moulding, 60 minutes press times; Colded pressing on vulcanizing press after finishing 10 minutes, pressure 15MPa makes the conductive porous composite material thin slice.
Claims (6)
1. the preparation method of a filling type high polymer conductive porous composite material is characterized in that this method may further comprise the steps:
The preparation of a, superpolymer organic solvent solution
The superpolymer organic solvent solution of preparation 0.01g/ml～1g/ml concentration;
The high-speed mixing of b, superpolymer organic solvent solution and electro-conductive material
Load weighted electro-conductive material is added in the high-speed mixer mixing kettle, then load weighted superpolymer organic solvent solution is added in the mixing kettle of high-speed mixer in batches, each add-on is 20%～25% of total solution amount, the each adding after the solution, start high-speed mixer and mix, all be added in the mixing kettle of high-speed mixer until all high polymeric solutions by this program;
C, compression moulding
At pressure 15～30MPa, under the condition that temperature is 160～280 ℃, adopt vulcanizing press compression moulding, 5～60 minutes press times; Colded pressing on vulcanizing press after finishing 5～10 minutes, pressure 15～30MPa makes high polymer conductive porous composite material sheet material.
2. the preparation method of filling type high polymer conductive porous composite material according to claim 1, it is characterized in that the superpolymer that described superpolymer organic solvent solution uses is polycarbonate, organic solvent is a kind of in ethylene dichloride, methylene dichloride, trichloroethane, trichloromethane, the tetrachloroethane.
3. the preparation method of filling type high polymer conductive porous composite material according to claim 1, it is characterized in that the superpolymer that described superpolymer organic solvent solution uses is polystyrene, organic solvent is a kind of in benzene, toluene, ethylene dichloride, methylene dichloride, the ethyl acetate.
4. the preparation method of filling type high polymer conductive porous composite material according to claim 1 is characterized in that the corresponding 2g～10g electro-conductive material that adds of every 10ml superpolymer organic solvent solution among the step b.
5. the preparation method of filling type high polymer conductive porous composite material as claimed in claim 1 is characterized in that described conductive filler material is a kind of in acetylene carbon black, electrically conductive graphite, the conductive carbon fibre.
6. the preparation method of filling type high polymer conductive porous composite material according to claim 1, it is characterized in that the mixing time of superpolymer organic solvent solution and electro-conductive material is 60～120 seconds among the step b, the high-speed mixer rotating speed is 1000～3000 revolutions per seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100499170A CN101134837A (en) | 2007-09-03 | 2007-09-03 | Method for preparing filling type high polymer conductive porous composite material |
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| CNA2007100499170A CN101134837A (en) | 2007-09-03 | 2007-09-03 | Method for preparing filling type high polymer conductive porous composite material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952439A (en) * | 2012-11-13 | 2013-03-06 | 西安交通大学 | Composite carbon conductive coating and preparation method thereof |
| CN104119627A (en) * | 2014-07-15 | 2014-10-29 | 西南科技大学 | Heat conductive composite material with high volume fraction and preparation method thereof |
-
2007
- 2007-09-03 CN CNA2007100499170A patent/CN101134837A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952439A (en) * | 2012-11-13 | 2013-03-06 | 西安交通大学 | Composite carbon conductive coating and preparation method thereof |
| CN104119627A (en) * | 2014-07-15 | 2014-10-29 | 西南科技大学 | Heat conductive composite material with high volume fraction and preparation method thereof |
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Open date: 20080305 |