CN101525468B - Preparation method of low-resistance conductive plastic - Google Patents
Preparation method of low-resistance conductive plastic Download PDFInfo
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- CN101525468B CN101525468B CN200910058605.5A CN200910058605A CN101525468B CN 101525468 B CN101525468 B CN 101525468B CN 200910058605 A CN200910058605 A CN 200910058605A CN 101525468 B CN101525468 B CN 101525468B
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- low
- conductive plastic
- resistance conductive
- composition board
- carbon felt
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- 239000004033 plastic Substances 0.000 title claims abstract description 23
- 229920003023 plastic Polymers 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 58
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000010355 oscillation Effects 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 39
- 229910052799 carbon Inorganic materials 0.000 claims description 34
- 229920005989 resin Polymers 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 21
- 239000004593 Epoxy Substances 0.000 claims description 19
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 8
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical group CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 7
- 239000004917 carbon fiber Substances 0.000 abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052720 vanadium Inorganic materials 0.000 abstract description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 239000003792 electrolyte Substances 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 28
- 239000002985 plastic film Substances 0.000 description 11
- 229920006255 plastic film Polymers 0.000 description 11
- 239000011159 matrix material Substances 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 7
- 239000002131 composite material Substances 0.000 description 7
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- NFVPEIKDMMISQO-UHFFFAOYSA-N 4-[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC=C(O)C=C1 NFVPEIKDMMISQO-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 241000233805 Phoenix Species 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to a low-resistance conductive plastic and a preparation method thereof. The low-resistance conductive plastic comprises the raw materials with the mass percentage: 30-85% of epoxide resin, 10-60% of curing agent, 0-3% of accelerant and 10-55% of carbon fiber felt. The preparation method of the low-resistance conductive plastic comprises the steps: the epoxide resin, the curing agent and the accelerant are put into a baking oven to be baked to be 30-150 DEG C, so that mixture A is obtained; the carbon fiber felt is dipped into the mixture A, and the mixed solution is put into a mould to be cured to obtain a clad plate; the clad plate is placed into concentrated sulfuric acid with the temperature of 20-150 DEG C to be stirred and processed by ultrasonic oscillation; then, the clad plate is taken out and put into hot water with the temperature of 50-90 DEG C; finally, the low-resistance conductive plastic is obtained after being washed by ultrasonic wave for a plurality of times and dried. The low-resistance conductive plastic has good electric conduction performance, can not be etched by vanadium electrolyte, resists electric pile overcharge, and is high in mechanical strength and low in cost.
Description
Technical field
The invention belongs to the conductive plastic material field, be specifically related to a kind of preparation method of low-resistance conductive plastic.
Background technology
At present, use graphite cake in the vanadium cell usually, the thermoplastic conductive of use plastics are also arranged as pole plate as pole plate.The advantage of graphite cake is that resistance is little, and shortcoming is to be etched easily and poor toughness.Though the thermoplastic conductive plastics are not by anodal liquid etching, and good toughness, its resistance is bigger, the heavy-current discharge performance of restriction vanadium cell.Therefore, seek the important topic that another anti-etching, good toughness and the good conducting plates of conductivity become vanadium cell research.
(number of patent application is CN200510086201.9) discloses a kind of conductive plastics and working method thereof, processing unit (plant) in the Chinese patent literature, described conductive plastics comprises: the electro-conductive fiber of 0.1～45v%, the thermoplastics of 55～99v% and the processing aid of 0～3v%; This invents described conductive plastics by short carbon fiber overlap joint conduction, its electroconductibility is better than only adding the conductive plastics that Graphite Powder 99 is made conductive agent, weak point is that the carbon fiber of overlap joint has skim Resins, epoxy to intercept mutually, and resistivity is still bigger, and conductivity can not satisfy the needs of vanadium cell.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of preparation method of low-resistance conductive plastic.
The preparation method of low-resistance conductive plastic of the present invention comprises the steps: successively
A) the raw materials quality per-cent prescription according to low-resistance conductive plastic quantitatively takes by weighing Resins, epoxy 30%～85%, solidifying agent 10%～60%, and promotor 0～3%, carbon felt 1%～55% is standby;
B) Resins, epoxy, solidifying agent and promotor are put into baking oven baking to 30 ℃～150 ℃, mix, stir evenly mixture A;
C) the carbon felt is immersed among the mixture A, makes and wherein do not stay bubble, take out and to put into mould, flatten, solidify composition board;
D) composition board after the above-mentioned curing is put into 20 ℃～150 ℃ the vitriol oil, stirred, adopt ultra-sonic oscillation to handle simultaneously 2 minutes to two hours;
E) take out composition board, put it in 50 ℃～90 ℃ the hot water, ultrasonic cleaning 3 times each 6 minutes, is dried moisture then;
Repeating step d) and step e) f), the composition board of oven dry moisture being dropped in the vitriol oil again, is 1 millimeter up to the surface corrosion degree of depth, cleans then and dries, and obtains required product.
Described promotor is dibutyl phthalate.
Described carbon felt refers to that Fibre diameter is 1 micron～800 microns, and staple length is more than or equal to 1 millimeter.
Low-resistance conductive plastic of the present invention adopts whole carbon felt as electrical conductor, has a large amount of macrofibers directly to be communicated with its tow sides in the carbon felt, mainly utilizes the carbon fiber on this direct conducting two sides to conduct electricity.Composite surface is carried out the vitriol oil handle, purpose is to remove the Resins, epoxy thin layer of clad surface carbon fiber, and the carbon fiber of conduction is directly come out, and reduces the contact resistance of plank and extraneous electrical conductor.Low-resistance conductive plastic of the present invention is at 128mA/cm
2Under the charge status, conductivity is good.Compare with graphite cake, can be by the electrolytic solution etching, the ability pile overcharges; Its physical strength height can enlarge the pole plate area, is used to equip high-power pile; Its production cost is low, and every material cost only is 1/3 of a graphite cake.
Embodiment
Embodiment 1
120 gram E51 bisphenol A-type liquid-state epoxy resins (the phoenix E51 of Wuxi resin processing plant), 60 gram 651 type polyamide resins (Wuxi resin processing plant) and 12 gram dibutyl phthalates are put in the hand baking oven baking to 80 ℃, and mixing stirs evenly.The carbon felt immersion of 150mm * 150mm * 6mm has been stirred in the mixture of Resins, epoxy and solidifying agent, noted to leave bubble in the carbon felt.Take out and flooded good carbon felt, place it in the tetrafluoroethylene mold slots of 100mm * 100mm * 6mm, add Resins, epoxy again to flush with groove, be covered with the pp plastic film, cover flat board, wait for being solidified into composition board with mixture to the liquid level of solidifying agent.Composition board after solidifying is taken out from mould, put into the groove that 80 ℃ of vitriol oils are housed, plate is fixed, make top and bottom can both fully contact the vitriol oil, open stirrer, stir the upper strata vitriol oil.After 30 minutes, it is fixing that composition board is turned over, and continues to stir 30 minutes.Open ultrasonic wave when stirring, make by the Resins, epoxy of vitriol oil carbonization to get off from surface desorption.Take out composition board, be placed in 85 ℃ the hot water ultrasonic cleaning 3 times, cleaned 5 minutes at every turn, and check the composite surface corrosive degree of depth and consistence.If depth of corrosion does not reach 1 millimeter, put into the groove that the vitriol oil is housed after the oven dry and continue to handle, up to reaching requirement.Clean then and dry, make required.
Embodiment 2
Place the baking oven baking to 50 ℃ in 400 gram 615A type Resins, epoxy (Wuxi resin processing plant), 100 gram 593 type solidifying agent (Wuxi resin processing plant), mix, stir evenly.The carbon felt of 318mm * 318mm * 6mm is put into the mould of 320mm * 320mm * 15mm groove, the Resins, epoxy that stirred and the mixture of solidifying agent are poured on the carbon felt, roll flatly with glass rod repeatedly, make the carbon felt can soak into mixture, attention can not leave bubble.Take out and flooded good carbon felt, place it on the plane that is covered with the PP plastic film, cover one deck PP plastic film above again, cover flat board, wait for being solidified into composition board.Composition board after solidifying is put into the groove that 80 ℃ of vitriol oils are housed, plate is fixed, make top and bottom can both fully contact the vitriol oil, open stirrer, stir the upper strata vitriol oil.After 30 minutes, it is fixing that composition board is turned over, and continues to stir 30 minutes.Take out composition board, be placed in 55 ℃ the hot water ultrasonic cleaning 3 times, cleaned 5 minutes at every turn, and check the composite surface corrosive degree of depth and consistence.If depth of corrosion does not reach 1 millimeter, put into the groove that the vitriol oil is housed after the oven dry and continue to handle, up to reaching requirement.Clean then and dry.
Embodiment 3
Place the baking oven baking to 40 ℃ in 2000 gram 615A type Resins, epoxy (Wuxi resin processing plant), 250 gram 593 type solidifying agent (Wuxi resin processing plant), mix, stir evenly.The carbon felt of 5 318mm * 318mm * 6mm is put into the mould of 320mm * 320mm * 75mm groove, the Resins, epoxy that stirred and the mixture of solidifying agent are poured on the carbon felt, and cover lid vacuumizes, make the carbon felt all soak into mixture, guarantee not stay bubble in the carbon felt.Take out and flooded good carbon felt, place it on the plane that is covered with the PP plastic film, cover one deck PP plastic film above again, cover flat board, wait for being solidified into composition board.Composition board after solidifying is put into the groove that 80 ℃ of vitriol oils are housed, composition board is fixed, make top and bottom can both fully contact the vitriol oil, open stirrer, stir the upper strata vitriol oil.After 30 minutes, it is fixing that composition board is turned over, and continues to stir 30 minutes.Take out composition board, be placed in 55 ℃ the hot water ultrasonic cleaning 3 times, cleaned 5 minutes at every turn, and check the composite surface corrosive degree of depth and consistence.If depth of corrosion does not reach 1 millimeter, put into the groove that the vitriol oil is housed after the oven dry and continue to handle, until reaching requirement.Clean then and dry.
Embodiment 4
With 2000 gram WHUT-RL70-A type Resins, epoxy (Wuhan nine dimension matrix material company limiteds), 1680 gram WHUT-RL-B type solidifying agent (Wuhan nine dimension matrix material company limiteds) and 20 gram WHUT-RL-C (promptly 2,4,6-three (dimethylamino methyl) phenol, Wuhan nine dimension matrix material company limiteds) place the baking oven baking to 70 ℃, mix, stir evenly.The carbon felt of 7 318mm * 318mm * 6mm is put into the mould of 320mm * 320mm * 75mm groove, the Resins, epoxy that stirred and the mixture of solidifying agent are poured on the carbon felt, and cover lid vacuumizes, make the carbon felt all soak into mixture, guarantee not stay bubble in the carbon felt.Take out and flooded good carbon felt, place it on the plane that is covered with the PP plastic film, cover one deck PP plastic film above again, cover flat board, wait for being solidified into composition board.Composition board after solidifying is put into the groove that 80 ℃ of vitriol oils are housed, plate is fixed, make top and bottom can both fully contact the vitriol oil, open stirrer, stir the upper strata vitriol oil.After 30 minutes, it is fixing that composition board is turned over, and continues to stir 30 minutes.Take out composition board, be placed in 55 ℃ the hot water ultrasonic cleaning 3 times, cleaned 5 minutes at every turn, and check the composite surface corrosive degree of depth and consistence.If depth of corrosion does not reach 1 millimeter, put into the groove that the vitriol oil is housed after the oven dry and continue to handle, until reaching requirement.Clean then and dry.
Embodiment 5
With 2000 gram WHUT-RL90-A type Resins, epoxy (Wuhan nine dimension matrix material company limiteds), 1440 gram WHUT-RL-B type solidifying agent (Wuhan nine dimension matrix material company limiteds) and 20 gram WHUT-RL-C (promptly 2,4,6-three (dimethylamino methyl) phenol, Wuhan nine dimension matrix material company limiteds) place the baking oven baking to 70 ℃, mix, stir evenly.The carbon felt of 7 318mm * 318mm * 6mm is put into the mould of 320mm * 320mm * 75mm groove, the Resins, epoxy that stirred and the mixture of solidifying agent are poured on the carbon felt, and cover lid vacuumizes, make the carbon felt all soak into mixture, guarantee not stay bubble in the carbon felt.Take out and flooded good carbon felt, place it on the plane that is covered with the PP plastic film, cover one deck PP plastic film above again, cover flat board, wait for being solidified into composition board.Composition board after solidifying is put into the groove that 80 ℃ of vitriol oils are housed, plate is fixed, make top and bottom can both fully contact the vitriol oil, open stirrer, stir the upper strata vitriol oil.After 30 minutes, it is fixing that composition board is turned over, and continues to stir 30 minutes.Take out composition board, be placed in 55 ℃ the hot water ultrasonic cleaning 3 times, cleaned 5 minutes at every turn, and check the composite surface corrosive degree of depth and consistence.If depth of corrosion does not reach 1 millimeter, put into the groove that the vitriol oil is housed after the oven dry and continue to handle, until reaching requirement.Clean then and dry.
Embodiment 6
Place the baking oven baking to 40 ℃ in 1000 gram WHUT-Esys 308A type Resins, epoxy (Wuhan nine dimension matrix material company limiteds), 1320 gram WHUT-Esys308B type solidifying agent (Wuhan nine dimension matrix material company limiteds), mix, stir evenly.The carbon felt of 7 318mm * 318mm * 6mm is put into the mould of 320mm * 320mm * 75mm groove, the Resins, epoxy that stirred and the mixture of solidifying agent are poured on the carbon felt, and cover lid vacuumizes, make the carbon felt all soak into mixture, guarantee not stay bubble in the carbon felt.Take out and flooded good carbon felt, place it on the plane that is covered with the PP plastic film, cover one deck PP plastic film above again, cover flat board, wait for being solidified into composition board.Composition board after solidifying is put into the groove that 80 ℃ of vitriol oils are housed, plate is fixed, make top and bottom can both fully contact the vitriol oil, open stirrer, stir the upper strata vitriol oil.After 30 minutes, it is fixing that composition board is turned over, and continues to stir 30 minutes.Take out composition board, be placed in 55 ℃ the hot water ultrasonic cleaning 3 times, cleaned 5 minutes at every turn, and check the composite surface corrosive degree of depth and consistence.If depth of corrosion does not reach 1 millimeter, put into the groove that the vitriol oil is housed after the oven dry and continue to handle, until reaching requirement.Clean then and dry.
Claims (2)
1. the preparation method of a low-resistance conductive plastic comprises the steps: successively
A) the raw materials quality per-cent prescription according to low-resistance conductive plastic quantitatively takes by weighing Resins, epoxy 30%～85%, solidifying agent 10%～60%, and promotor 0～3%, carbon felt 1%～55% is standby;
B) Resins, epoxy, solidifying agent and promotor are put into baking oven baking to 30 ℃～150 ℃, mix, stir evenly mixture A;
C) the carbon felt is immersed among the mixture A, makes and wherein do not stay bubble, take out and to put into mould, flatten, solidify composition board;
D) composition board after the above-mentioned curing is put into 20 ℃～150 ℃ the vitriol oil, stirred, adopt ultra-sonic oscillation to handle simultaneously 2 minutes to two hours;
E) take out composition board, put it in 50 ℃～90 ℃ the hot water, ultrasonic cleaning 3 times each 6 minutes, is dried moisture then;
Repeating step d) and step e) f), the composition board of oven dry moisture being dropped in the vitriol oil again, is 1 millimeter up to the surface corrosion degree of depth, cleans then and dries, and obtains required product.
2. low-resistance conductive plastic preparation method according to claim 1 is characterized in that: described promotor is dibutyl phthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910058605.5A CN101525468B (en) | 2009-03-11 | 2009-03-11 | Preparation method of low-resistance conductive plastic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910058605.5A CN101525468B (en) | 2009-03-11 | 2009-03-11 | Preparation method of low-resistance conductive plastic |
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| CN101525468A CN101525468A (en) | 2009-09-09 |
| CN101525468B true CN101525468B (en) | 2011-06-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367764A (en) * | 2011-05-25 | 2013-10-23 | 深圳市金钒能源科技有限公司 | Composite conductive electrode and manufacturing method thereof |
| CN102637881B (en) * | 2012-04-11 | 2015-03-25 | 朝阳华鼎储能技术有限公司 | Method for preparing electroconductive plastic bipolar plate for vanadium cell |
| CN103035928B (en) * | 2012-12-18 | 2015-04-15 | 中国科学院金属研究所 | Integrated electrode for vanadium cell and preparation method thereof |
| CN109216709A (en) * | 2017-06-29 | 2019-01-15 | 中国科学院金属研究所 | A kind of dig pit effect construction method and its application of high-ratio surface carbon fiber felt |
| CN111525150A (en) * | 2020-05-09 | 2020-08-11 | 乐山创新储能技术研究院有限公司 | Preparation method of flow battery composite electrode |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101163828A (en) * | 2005-04-19 | 2008-04-16 | 帝人株式会社 | Carbon fiber composite sheet, use of the same as heat transferring article, and sheet for pitch-based carbon fiber mat for use therein |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101163828A (en) * | 2005-04-19 | 2008-04-16 | 帝人株式会社 | Carbon fiber composite sheet, use of the same as heat transferring article, and sheet for pitch-based carbon fiber mat for use therein |
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