CN105484012A - Surface treatment method and device for polyacrylonitrile carbon fibers - Google Patents
Surface treatment method and device for polyacrylonitrile carbon fibers Download PDFInfo
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- CN105484012A CN105484012A CN201610012981.0A CN201610012981A CN105484012A CN 105484012 A CN105484012 A CN 105484012A CN 201610012981 A CN201610012981 A CN 201610012981A CN 105484012 A CN105484012 A CN 105484012A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/06—Inorganic compounds or elements
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B13/00—Treatment of textile materials with liquids, gases or vapours with aid of vibration
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
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Abstract
The invention relates to a surface treatment method for polyacrylonitrile carbon fibers. The method comprises the steps that a two-stage anode electrolytic oxidation treatment mode is adopted; an acid electrolyte solution is adopted for a first electrolytic cell so that the oxygen content of the surfaces of the carbon fibers can be remarkably increased; an alkaline electrolyte solution is adopted for a second electrolytic cell so that the nitrogen content of the surfaces of the carbon fibers can be increased. After two-stage anode electrolytic oxidation treatment, the compatibility and interface bonding of the carbon fibers and maleimide resin or other resin containing the nitrogen element are good, and the interlaminar shear strength of the composite is increased. Ultrasonic water washing and roller drying modes are adopted, wherein the removing efficiency of the electrolyte solutions on the surfaces of the carbon fibers can be improved through ultrasonic water washing, and the damage, caused by traditional hot air drying, to the carbon fibers is relieved through roller drying.
Description
Technical field
The present invention relates to carbon fibre material field, particularly a kind of polyacrylonitrile carbon fiber surface treatment method and device.
Background technology
Carbon fiber is as a kind of new and high technology material, and apply widely in Aero-Space and civil area, be considered to fortifying fibre the most rising at present, the carbon fiber of more than 90% is produced by polyacrylonitrile fibril in the world at present.Carbon fiber belongs to random graphits structure, has heterogeneity, is made up of graphite synusia, graphite microcrystal and fibrillar structure three grades; Its epidermal area crystallite dimension is large, marshalling, and preferred orientation degree is higher; And core crystallite is less, arrangement disorder, this structure makes fiber surface present inertia, very weak with the interfacial adhesion ability of resin matrix, the interlaminar shear strength (ILSS) of composite is only 55 ~ 75MPa, after surface treatment, add the active function groups of carbon fiber surface, improve carbon fiber surface polarity, thus increase the wetting of matrix resin and bonding, and then improving the performance of resin matrix composite material, the interlaminar shear strength (ILSS) of composite brings up to more than 110MPa.
The domestic and international research to carbon fiber surface modification is a lot of at present, proposes various processing method, but by process conditions, comparative maturity also the method supporting with industrial production line can only have electrochemical oxidation process and vapour phase oxidation process.Vapour phase oxidation process equipment is simple, and flow process is short, small investment.Carbon fiber can directly starching after gaseous oxidation, without the need to washing and dry.But the maximum drawback of vapour phase oxidation process is that operating flexibility is narrow, carbon fiber tensile strength just declines to a great extent at about 400 DEG C, controls difficulty large, because carbon fiber just starts eremacausis in 350 DEG C of air, the oxidation reaction of about 400 DEG C is just relatively more violent, causes TENSILE STRENGTH to decline.And the wind-warm syndrome of hot-air used and wind speed slightly change and all can affect degree of oxidation, technique is difficult to control, poor repeatability.
Anode electrolysis oxidizing process is current one of carbon fiber surface treatment method preferably, the advantage of this method is that anodic oxidation is easy to control, can realize every root monofilament uniform alumina, after oxidation, the decline of carbon fiber pulls intensity is controlled, can not cause heavy damage to carbon fiber.But also there are some problems in current anodizing, first be the introducing only focusing on carbon fiber surface oxygen element in anode oxidation process, and the introducing of other active element is seldom related to, the resin of this kind of Nitrogen element of such as maleimide resin, if carbon fiber surface can introduce nitrogenous element, compatibility and the interface cohesion of carbon fiber and resinamines will be increased.Secondly, the follow-up washing of surface treatment and drying process complexity, comparatively large to the damage of carbon fiber, commercial process is loaded down with trivial details, and production cost is higher.
Summary of the invention
The present invention is in order to overcome the deficiency of above-mentioned technical problem, provide a kind of polyacrylonitrile carbon fiber surface treatment method, the method adopts two sections of anodized modes, and while raising carbon fiber surface oxygen content, the content of nitrogen also increases simultaneously, and supersonic generator is adopted in water-washing process, improve washing efficiency, the drying after washing adopts hot-rolling heating, little to the damage of carbon fiber, floor space is little, good economy performance.
The technical scheme solved the problems of the technologies described above is as follows:
A kind of polyacrylonitrile carbon fiber surface treatment method, adopts two sections of anode electrolysis oxidation processes modes.
A kind of polyacrylonitrile carbon fiber surface processing device, comprise the first electrolytic cell and the second electrolytic cell, using first anode roller and second plate roller as anode in the first described electrolytic cell, and using the first minus plate as negative electrode, anode roller connects the positive pole of dc source, and minus plate connects the negative pole of power supply.In order to improve electric conductivity, anode roller and minus plate all adopt graphite material, the object arranging two anode rollers is being uniformly distributed of power line in control first electrolytic cell, thus arrive the object of carbon fiber surface uniform treatment, acidic electrolyte solution is adopted to be that electrolyte carries out electrochemical anodic oxidation, described acidic electrolyte solution is any one in hydrochloric acid electrolyte solution, electrolyte sulfuric acid solution or nitric acid electrolyte solution, and concentration is not higher than 5% (mass fraction).Surface-treated electric current is 5 ~ 50C/g, and temperature is room temperature ~ 50 DEG C.After the first electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (O of oxygen element and carbon in surface-element composition
iS/ C
iS) bring up to more than 0.15.
Using second plate roller and third anode roller as anode in the second described electrolytic cell, and using the second minus plate as negative electrode, anode roller and minus plate are graphite material, adopt alkaline electrolyte solution be that electrolyte carries out electrochemical anodic oxidation, the present invention adopt mass fraction not higher than 5% ammonia spirit (NH
4oH).Surface-treated electric current is 5 ~ 50C/g, and temperature is room temperature ~ 50 DEG C.After the second electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (N of nitrogen element and carbon in surface-element composition
iS/ C
iS) bring up to more than 0.1.
Due to the first electrolytic cell employing is acidic electrolyte bath, and the second electrolytic cell adopts alkaline electrolyte, usually the carbon fibre tow of acidic electrolyte bath is contained after entering the second electrolytic cell, the acid-base neutralization reaction of a part can be caused, reduce the effect of carbon fiber surface electrolytic treatments, therefore, the present invention arranges an air purge set between the first electrolytic cell and the second electrolytic cell, most of acidic electrolyte bath on carbon fiber can be purged, avoid bringing the second electrolytic cell into.
Carbon fiber through the process of two-stage electrolytic surface is washed through rinsing bowl again, and the object of washing removes the electrolyte solution entrained by carbon fiber surface, and washing adopts deionized water, and temperature is greater than 50 DEG C.In the present invention, because the second electrolytic cell is ammonia spirit, so the object of washing removes ammoniacal liquor and corresponding ammonium salt, in order to improve water washing effect, present invention employs the mode of ultrasonic wave water washing, supersonic generator is arranged on relative to 1 ~ 2cm place above processed polyacrylonitrile carbon fiber tow.The power of supersonic generator and will selecting suitably with the distance of carbon fibre tow, otherwise damage can be caused to carbon fiber.
Carbon fiber after washing enters drying process, present invention employs a kind of roller dryers, the diameter of roller is at more than 400mm, adopt Steam Heating, roller surface temperature is greater than 100 DEG C, roller adopts stainless steel, plating hard chromium on surface through grinding and buffing, fineness (Ra) is greater than 0.2.The number of roller can be 1 ~ 4, determine according to the speed of service of tow, object ensures that tow has enough time of staying at roller surface, thus the moisture that drying fibrous surface is carried, the carbon fiber moisture of drying through roller controls usually below 0.1%.Overcoming prior art adopts heated-air drying comparatively large to the damage of carbon fiber, causes carbon fiber to fluff, the deficiency of the TENSILE STRENGTH reduction of carbon fiber simultaneously.
The invention has the beneficial effects as follows: present invention employs two sections of anode electrolysis oxidation processes modes, first electrolytic cell adopts acidic electrolyte solution, can significantly improve the oxygen content of carbon fiber surface, the second electrolytic cell adopts alkaline electrolyte solution, can improve the nitrogen content of carbon fiber surface.After two sections of anode electrolysis oxidation processes, this resinoid compatibility of the Nitrogen element such as carbon fiber and maleimide resin and interface cohesion better, improve the interlaminar shear strength of composite.Adopt the mode of ultrasonic wave water washing and roller drying, ultrasonic wave water washing can improve the removal efficiency of carbon fiber surface electrolyte solution, and roller drying then reduces the damage to carbon fiber that traditional heated-air drying is brought.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the embodiment of the present invention 1;
In figure, 1 is carbon fiber, and 2 is first anode roller, and 3 is the first guide roller, 4 is the first electrolytic cell, and 5 is the second guide roller, and 6 is the first minus plate, and 6a is the second minus plate, 7 is second plate roller, and 8 is the second electrolytic cell, and 9 is air purge set, 10 is third anode roller, and 11 is the 3rd guide roller, and 12 is rinsing bowl, 13 is supersonic generator, and 14 is the 4th guide roller, and 15 is the 5th guide roller, 16 is drier, and 17 is the 6th guide roller, and 18 is the 7th guide roller.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1: a kind of polyacrylonitrile carbon fiber surface treatment method, two sections of anode electrolysis oxidation processes modes are adopted.A kind of polyacrylonitrile carbon fiber surface processing device, comprise the first electrolytic cell 4 and the second electrolytic cell 8, using first anode roller 2 and second plate roller 7 as anode in described first electrolytic cell 4, and using the first minus plate 6 as negative electrode, acidic electrolyte solution is adopted to be that electrolyte carries out electrochemical anodic oxidation, using second plate roller 7 and third anode roller 10 as anode in second electrolytic cell, and using the second minus plate 6a as negative electrode, alkaline electrolyte solution is adopted to be that electrolyte carries out electrochemical anodic oxidation, surface-treated electric current is 50C/g, and temperature is 30 DEG C.
The electrolyte that carbon fiber 1 enters in the first electrolytic cell 4, first electrolytic cell 4 through the first anode roller 2 and the first guide roller 3 connecting power supply adopts hydrochloric acid electrolyte solution, and concentration is 5% (mass fraction).Arrange first anode roller 2, second plate roller 7 and the first minus plate 6 in first electrolytic cell 4, first anode roller 2 is connected the positive pole of dc source with second plate roller 7, and the first minus plate 6 connects the negative pole of power supply.In order to improve electric conductivity, anode roller and minus plate all adopt graphite material, and the object arranging two anode rollers controls being uniformly distributed of power line in electrolytic cell, thus reach the object of carbon fiber surface uniform treatment.Two guide rollers of the first electrolytic cell 4 owing to will be immersed in acid electrolyte, so the present invention adopts the ceramic material of acid corrosion-resistant, ceramic roller surface through polishing, prevent from causing damage to carbon fiber.After the first electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (O of oxygen element and carbon in surface-element composition
iS/ C
iS) bring up to more than 0.15.
Carbon fiber 1 enters the second electrolytic cell 8 from the first electrolytic cell 4 through the second guide roller 5, second plate roller 7, the 6th guide roller 17, the form of the second electrolytic cell 8 is identical with the first electrolytic cell, and the electrolyte that the second electrolytic cell 8 adopts is completely different from the first electrolytic cell 4, for improving the content of carbon fiber surface nitrogen element, second electrolytic cell adopts the alkaline electrolyte solution of Nitrogen element, and the present invention adopts the ammonia spirit (NH of mass fraction 5%
4oH).After the second electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (N of nitrogen element and carbon in surface-element composition
iS/ C
iS) bring up to more than 0.1.
Due to the first electrolytic cell 4 employing is acidic electrolyte bath, and the second electrolytic cell 8 adopts alkaline electrolyte, containing the carbon fibre tow of acidic electrolyte bath after entering the second electrolytic cell, the acid-base neutralization reaction of a part can be caused, reduce the effect of carbon fiber surface electrolytic treatments, therefore, the present invention arranges an air purge set 9 between the first electrolytic cell and the second electrolytic cell, most of acidic electrolyte bath on carbon fiber can be purged, avoid bringing the second electrolytic cell into.
Carbon fiber through the process of two-stage electrolytic surface enters rinsing bowl 12 through the 7th guide roller 18, the 3rd guide roller 11, and the object of washing removes the electrolyte solution entrained by carbon fiber surface, and washing adopts deionized water, and temperature is greater than 50 DEG C.In the present invention, because the second electrolytic cell 8 is ammonia spirit, so the object of washing removes ammoniacal liquor and corresponding ammonium salt, in order to improve water washing effect, present invention employs the mode of ultrasonic wave water washing, supersonic generator 13 is placed on the top of distance carbon fibre tow 1 ~ 2cm, the power of supersonic generator and will selecting suitably with the distance of carbon fibre tow, otherwise can cause damage to carbon fiber.The 3rd guide roller 11 in rinsing bowl, the 4th guide roller 14 adopt ceramic material equally, avoid corrosion.
Carbon fiber after washing enters drying process through the 4th guide roller 14, the 5th guide roller 15, and the present invention adopts roller dryers 16, and the diameter of roller is at more than 400mm, and adopt Steam Heating, control roll drum surface temperature is 105 DEG C.Roller adopts stainless steel, plating hard chromium on surface through grinding and buffing, fineness (Ra) is greater than 0.2.The number of roller can be 1 ~ 4, determine according to the speed of service of tow, object ensures that tow has enough time of staying at roller surface, thus the moisture that drying fibrous surface is carried, the carbon fiber moisture of drying through roller controls usually below 0.1%.
Embodiment 2:
First electrolytic cell 4 adopt mass fraction be 3% electrolyte sulfuric acid, surface treatment electricity is 25C/g, second electrolytic cell 8 does not carry out surface treatment and directly enters washing, washing adopts deionized water, flow is 500 ls/h, temperature is 75 DEG C, and adopts ultrasonic wave water washing mode, and roller baking temperature is 120 DEG C.
The element adopting XPS to detect through above-mentioned Treatment of Carbon surface forms, wherein OIS/CIS=0.25, NIS/CIS=0.03, the interlaminar shear strength (ILSS) adopting 3 short beam methods (with reference to GB GB3357-82) to test carbon fiber and maleimide resin composite is 108MPa.Result gathers in table 1.
Carbon fiber surface due to nitrogen content lower, so also lower with the ILSS of maleimide resin composite.
Embodiment 3:
First electrolytic cell 4 does not carry out surface treatment and directly enters the second electrolytic cell 8, second electrolytic cell 8 adopt mass fraction be 3% ammonia spirit, surface treatment electricity is 25C/g, washing adopts deionized water, flow is 500 ls/h, temperature is 75 DEG C, and adopts ultrasonic wave water washing mode, and roller baking temperature is 120 DEG C.
The element adopting XPS to detect through above-mentioned Treatment of Carbon surface forms, wherein O
iS/ C
iS=0.12, N
iS/ C
iS=0.21, the ILSS adopting 3 short beam method test carbon fibers and maleimide resin composite is 117MPa.The results are summarized in table 1.
Carbon fiber surface due to oxygen content lower, so also lower with the ILSS of maleimide resin composite.
Embodiment 4:
First electrolytic cell employing mass fraction is the electrolyte sulfuric acid solution of 3%, surface treatment electricity is 25C/g, second electrolytic cell adopts mass fraction to be the ammonia spirit of 3%, surface treatment electricity is 25C/g, washing adopts deionized water, and flow is 500 ls/h, and temperature is 75 DEG C, and adopting ultrasonic wave water washing mode, roller baking temperature is 120 DEG C.
The element adopting XPS to detect through above-mentioned Treatment of Carbon surface forms, wherein O
iS/ C
iS=0.28, NI
s/ C
iS=0.21, the ILSS adopting 3 short beam method test carbon fibers and maleimide resin composite is 140MPa.The results are summarized in table 1.
Carbon fiber surface oxygen content and nitrogen content are all higher, so also higher with the ILSS of maleimide resin composite.
Meanwhile, the line density of carbon fiber, TENSILE STRENGTH and lousiness amount are tested, the results are summarized in table 2.
Embodiment 5:
Adopt the surface treatment mode identical with embodiment 4, but difference from Example 4 is not adopt ultrasonic wave water washing mode, but adopts common water-washing method.
The element adopting XPS to detect through above-mentioned Treatment of Carbon surface forms, wherein OI
s/ C
iS=0.27, N
iS/ CI
s=0.22, the ILSS adopting 3 short beam method test carbon fibers and maleimide resin composite is 120MPa.The results are summarized in table 1.
Carbon fiber surface oxygen content and nitrogen content are all higher, but be also only 120MPa with the ILSS of maleimide resin composite, be significantly less than the 140MPa in embodiment 4, reason is that embodiment 5 does not adopt ultrasonic wave water washing mode, carbon fibre tow surface may remain electrolyte solution, causes the ILSS of composite to reduce.
Embodiment 6:
Adopt the surface treatment identical with embodiment 4 and water-washing method, but difference from Example 4 is the drying mode not having roller drying, but adopts common heated-air drying mode.
The line density of carbon fiber, TENSILE STRENGTH and lousiness amount are tested, the results are summarized in table 2.
Carbon fiber adopts roller drying mode, decreases the lousiness amount of carbon fiber, improves the TENSILE STRENGTH of carbon fiber.
Embodiment 7:
As different from Example 1, surface-treated electric current is 5C/g, and temperature is room temperature DEG C.
Electrolyte in first electrolytic cell 4 adopts nitric acid electrolyte solution, and concentration is 5% (mass fraction).After the first electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (O of oxygen element and carbon in surface-element composition
iS/ C
iS) bring up to 0.19.
Second electrolytic cell 8 adopts the ammonia spirit (NH of mass fraction 5%
4oH).After the second electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (N of nitrogen element and carbon in surface-element composition
iS/ C
iS) bring up to 0.12.
Embodiment 8:
As different from Example 1, surface-treated electric current is 20C/g, and temperature is 30 DEG C.
Electrolyte in first electrolytic cell 4 adopts nitric acid electrolyte solution, and concentration is 4.9% (mass fraction).After the first electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (O of oxygen element and carbon in surface-element composition
iS/ C
iS) bring up to 0.179.
Second electrolytic cell 8 adopts the ammonia spirit (NH of mass fraction 4.9%
4oH).After the second electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (N of nitrogen element and carbon in surface-element composition
iS/ C
iS) bring up to 0.103.
Embodiment 9:
As different from Example 1, surface-treated electric current is 40C/g, and temperature is 35 DEG C.
Electrolyte in first electrolytic cell 4 adopts nitric acid electrolyte solution, and concentration is 2.5% (mass fraction).After the first electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (O of oxygen element and carbon in surface-element composition
iS/ C
iS) bring up to 0.17.
Second electrolytic cell 8 adopts the ammonia spirit (NH of mass fraction 2.5%
4oH).After the second electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (N of nitrogen element and carbon in surface-element composition
iS/ C
iS) bring up to 0.12.
Embodiment 10:
As different from Example 1, surface-treated electric current is 50C/g, and temperature is 50 DEG C.
Electrolyte in first electrolytic cell 4 adopts nitric acid electrolyte solution, and concentration is 1% (mass fraction).After the first electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (O of oxygen element and carbon in surface-element composition
iS/ C
iS) bring up to 0.175.
Second electrolytic cell 8 adopts the ammonia spirit (NH of mass fraction 1%
4oH).After the second electrolytic treatments, detect the element composition of carbon fiber surface by x-ray photoelectron power spectrum (XPS), the ratio (N of nitrogen element and carbon in surface-element composition
iS/ C
iS) bring up to 0.125.
Table 1: the carbon fiber surface element composition that different embodiment obtains and the interlaminar shear strength with maleimide resin composite;
Table 2: the carbon fiber line density that different embodiment obtains, TENSILE STRENGTH and lousiness amount situation.
Table 1
Table 2
In sum, the present invention adopts two sections of anodized modes, and while raising carbon fiber surface oxygen content, the content of nitrogen also increases simultaneously, then add compatibility and the interface cohesion of carbon fiber and resinamines simultaneously.The present invention adopts supersonic generator in water-washing process, improves washing efficiency, and the drying after washing adopts hot-rolling heating, little to the damage of carbon fiber, and carbon fiber fluffing is less, and the TENSILE STRENGTH of carbon fiber increases, and floor space is little, good economy performance.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention, every according in technical spirit of the present invention to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.
Claims (9)
1. a polyacrylonitrile carbon fiber surface treatment method, is characterized in that, adopts two sections of anode electrolysis oxidation processes modes.
2. a polyacrylonitrile carbon fiber surface processing device, it is characterized in that, comprise the first electrolytic cell and the second electrolytic cell, using first anode roller and second plate roller as anode in the first described electrolytic cell, and using the first minus plate as negative electrode, acidic electrolyte solution is adopted to be that electrolyte carries out electrochemical anodic oxidation, using second plate roller and third anode roller as anode in the second described electrolytic cell, and using the second minus plate as negative electrode, alkaline electrolyte solution is adopted to be that electrolyte carries out electrochemical anodic oxidation, surface-treated electric current is 5 ~ 50C/g, temperature is room temperature ~ 50 DEG C.
3. polyacrylonitrile carbon fiber surface processing device according to claim 2, is characterized in that, described acidic electrolyte solution is any one in hydrochloric acid electrolyte solution, electrolyte sulfuric acid solution or nitric acid electrolyte solution.
4. polyacrylonitrile carbon fiber surface processing device according to claim 2, is characterized in that, described alkaline electrolyte solution is ammonia spirit.
5. polyacrylonitrile carbon fiber surface processing device according to claim 2, is characterized in that, described anode roller and minus plate are graphite material.
6. polyacrylonitrile carbon fiber surface processing device according to claim 2, is characterized in that, arranges an air purge set between the first described electrolytic cell and the second electrolytic cell.
7. polyacrylonitrile carbon fiber surface processing device according to claim 2, it is characterized in that, also comprise the rinsing bowl be connected with the second electrolyzer outlet place, arrange a supersonic generator in described rinsing bowl, described supersonic generator is arranged on relative to 1 ~ 2cm place above processed polyacrylonitrile carbon fiber tow.
8. polyacrylonitrile carbon fiber surface processing device according to claim 7, is characterized in that, also comprises the drier being arranged on rinsing bowl end.
9. polyacrylonitrile carbon fiber surface processing device according to claim 8, it is characterized in that, described drier is roller dryers, the diameter of roller is at more than 400mm, adopt Steam Heating, roller surface temperature is greater than 100 DEG C, and roller adopts stainless steel, plating hard chromium on surface through grinding and buffing, fineness is greater than 0.2.
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| CN107385735A (en) * | 2017-08-07 | 2017-11-24 | 中安信科技有限公司 | System for the washing and drying of carbon fiber, starching and dryness finalization |
| CN108457075A (en) * | 2018-05-30 | 2018-08-28 | 江苏恒神股份有限公司 | A kind of device for surface treatment of carbon fibers |
| CN108486692A (en) * | 2018-04-16 | 2018-09-04 | 中国科学院宁波材料技术与工程研究所 | A kind of processing method and system of high-strength high-modules carbon fibre |
| CN109023563A (en) * | 2017-06-08 | 2018-12-18 | 中国石油化工股份有限公司 | Build the preparation method of enhancing polyacrylonitrile chopped strand |
| CN109161947A (en) * | 2018-08-30 | 2019-01-08 | 北京化工大学 | High modulus carbon fiber surface treatment method and device and its application |
| CN114182453A (en) * | 2021-12-22 | 2022-03-15 | 张家港市港鹰实业有限公司 | Carbon fiber surface treatment device and use method thereof |
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| CN108486692A (en) * | 2018-04-16 | 2018-09-04 | 中国科学院宁波材料技术与工程研究所 | A kind of processing method and system of high-strength high-modules carbon fibre |
| CN108486692B (en) * | 2018-04-16 | 2024-01-02 | 中国科学院宁波材料技术与工程研究所 | High-strength high-modulus carbon fiber processing method and system |
| CN108457075A (en) * | 2018-05-30 | 2018-08-28 | 江苏恒神股份有限公司 | A kind of device for surface treatment of carbon fibers |
| CN109161947A (en) * | 2018-08-30 | 2019-01-08 | 北京化工大学 | High modulus carbon fiber surface treatment method and device and its application |
| CN114182453A (en) * | 2021-12-22 | 2022-03-15 | 张家港市港鹰实业有限公司 | Carbon fiber surface treatment device and use method thereof |
| CN114182453B (en) * | 2021-12-22 | 2023-12-05 | 张家港市港鹰实业有限公司 | Carbon fiber surface treatment device and application method thereof |
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