CN106519778A - Conductive and magnetic-conductive polyaniline modified carbon fiber preparation method - Google Patents
Conductive and magnetic-conductive polyaniline modified carbon fiber preparation method Download PDFInfo
- Publication number
- CN106519778A CN106519778A CN201610989002.7A CN201610989002A CN106519778A CN 106519778 A CN106519778 A CN 106519778A CN 201610989002 A CN201610989002 A CN 201610989002A CN 106519778 A CN106519778 A CN 106519778A
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- Prior art keywords
- carbon fiber
- magnetic powder
- conductive
- hour
- modified carbon
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/61—Polyamines polyimines
-
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
Abstract
The invention discloses a conductive and magnetic-conductive polyaniline modified carbon fiber preparation method, which comprises the steps: 1, ultrasonically dispersing nanometer magnetic powder into water, adding oleic acid and sodium dodecyl benzene sulfonate, heating to 75 to 85 DEG C, keeping the temperature for at least one hour and cooling to a room temperature to obtain magnetic powder dispersion liquid; 2, adding short carbon fiber and aniline hydrochloride into the magnetic powder dispersion liquid, ultrasonically dispersing in 3 to 10 DEG C for at least one hour, adding ammonium persulfate solution and performing in-site polymerization reaction for 12 to 18 hours in 5 to 15 DEG C; 3, alternatively washing reaction products through hydrochloric acid and acetone, washing until the pH is 7, filtering and drying to obtain the polyaniline modified carbon fiber. According to the preparation method, the surface of the carbon fiber is wrapped by a layer of conductive polymer conductive polyaniline; thus, the dispersity of the carbon fiber in a paint system is improved.
Description
Technical field
The present invention relates to field of material technology, more particularly to a kind of preparation side of electro and magneto conductive polyaniline modified carbon fiber
Method.
Background technology
With the high speed development of computer and network technologies, people enter " information age ", and electromagnetic wave is used as transmission letter
The carrier of breath comes into household electrical appliance, communication, computer and information equipment, electric tool, aerospace industry, science and technology, medical science etc.
The every field of social life.Various electronic products all adopt engineering plastic section as shell, and engineering plastics are crossed almost to electromagnetism
It is " transparent ", this electromagnetic environment allowed in the confined space unprecedentedly deteriorates, brings a series of social problem and environment to ask
Topic.Such as electromagnetic interference, the harm that electromagnetic information is divulged a secret and electromagnetic radiation is brought to health.
In order to eliminate electromagnetic interference and electromagnetic radiation, it is necessary to carry out electromagnetic shielding process to which.The method of electromagnetic shielding has：
L conductive filler is kneaded with resin, makes conductive plasticss in cabinet molding by ().The electric conductivity of this plastics and conduction
The species of filler is relevant with property, but conduction fills out the processing characteristics that the addition trembled has a strong impact on plastics, causes which to be difficult to make again
Miscellaneous shape, and the shield effectiveness of current conductive plastic enclosure is typically not ideal.(2) cover one layer in frosting to lead
Electrolemma, concrete grammar have：Electrically-conducting paint, metal sputtering, vacuum metal aluminize, electroplate or chemical plating metal film, pastes metal film
Deng.
Wherein, electrically-conducting paint is because which is easy to use, effect is good and be used widely.
The quality of electromagnetic screen coating performance is heavily dependent on the preparation process of coating.The system of electromagnetic screen coating
Standby technique includes the curing process of the pretreating process of raw material, the dispersing technology of coating, the construction technology of coating and coating. each
The electric conductivity and shield effectiveness and physical and mechanical propertiess of part all appreciable impact coatings.The surface area of short carbon fiber is big, surface
Can be high, the moisture in easy absorption air so that the affinity between carbon fiber and resin declines affects carbon fiber in coating body
Dispersion in system, and the acicular texture of carbon fiber itself also determines it which has very big oil factor, it is difficult in coating system
In be uniformly dispersed.Whether the dispersion of coating uniformly affects the formation of carbon fiber guiding electric network in coating, final to affect leading for coating
Electrical and shield effectiveness.The construction of coating directly determines the quality of coating, so as to affect the electric conductivity and shield effectiveness of coating.
The content of the invention
It is an object of the invention to propose a kind of preparation method of electro and magneto conductive polyaniline modified carbon fiber, carbon is enabled to
The dispersive property of fiber is improved.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of preparation method of electro and magneto conductive polyaniline modified carbon fiber, including：
(1) nano-magnetic powder ultrasound wave is distributed in water, adds Oleic acid and dodecylbenzene sodium sulfonate, be warmed up to 75-85
DEG C and be incubated at least 1 hour, be cooled to room temperature, obtain magnetic powder dispersion liquid；
(2) short carbon fiber and aniline hydrochloride are added into the magnetic powder dispersion liquid, ultrasonic disperse at least 1 is little at 3-10 DEG C
When, add ammonium persulfate solution, the home position polymerization reaction 12-18 hour at 5-15 DEG C；
(3) replace washing reaction product with acetone with hydrochloric acid, it is 7 to be washed to pH, is filtered, and drying obtains the polyaniline
Modified carbon fiber.
The polyaniline-modified carbon fiber that the present invention is prepared, is magnetic powder coating modification carbon fiber.
Contribution of the preparation method of the present invention to prior art is the proposition of technological process, as technological parameter,
The consumption and proportion of such as individual material, belonging to those skilled in the art can be voluntarily true according to concrete technology, specific requirement
Fixed, the present invention no longer with regard to its optimization and is repeated.
As carbon fiber is needle-like filler in itself, oil factor is big, and the cohesiveness between carbon fiber is very strong, easily rolls into a ball
It is poly-, the poor dispersion in coating system.Although with the coupling agent modified dispersibility that can improve carbon fiber, improvement is not very
Substantially, and coupling agent molecule is coated on carbon fiber surface, the seriality of conductive path can be affected, so as to the electric conductivity to coating
Can impact.The present invention coats one layer of conducting polymer electrically conductive polyaniline in carbon fiber surface, improves carbon fiber in coating
Dispersibility in system.As polyaniline is after protonic acid doping, continuous conductive path can be formed, so carbon modified
Electric conductivity also will not be impacted after coating modification for fiber.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Embodiment 1
A kind of preparation method of electro and magneto conductive polyaniline modified carbon fiber, including：
(1) nano-magnetic powder ultrasound wave is distributed in water, adds Oleic acid and dodecylbenzene sodium sulfonate, be warmed up to 75 DEG C simultaneously
Insulation at least 1 hour, is cooled to room temperature, obtains magnetic powder dispersion liquid；
(2) by short carbon fiber and the aniline hydrochloride addition magnetic powder dispersion liquid, ultrasonic disperse at least 1 hour at 3 DEG C, plus
Enter ammonium persulfate solution, home position polymerization reaction 12 hours at 5 DEG C；
(3) replace washing reaction product with acetone with hydrochloric acid, it is 7 to be washed to pH, is filtered, and drying obtains the polyaniline
Modified carbon fiber.
Embodiment 2
A kind of preparation method of electro and magneto conductive polyaniline modified carbon fiber, including：
(1) nano-magnetic powder ultrasound wave is distributed in water, adds Oleic acid and dodecylbenzene sodium sulfonate, be warmed up to 85 DEG C simultaneously
Insulation at least 1 hour, is cooled to room temperature, obtains magnetic powder dispersion liquid；
(2) by short carbon fiber and the aniline hydrochloride addition magnetic powder dispersion liquid, ultrasonic disperse at least 1 hour at 10 DEG C,
Add ammonium persulfate solution, home position polymerization reaction 18 hours at 15 DEG C；
(3) replace washing reaction product with acetone with hydrochloric acid, it is 7 to be washed to pH, is filtered, and drying obtains the polyaniline
Modified carbon fiber.
Embodiment 3
A kind of preparation method of electro and magneto conductive polyaniline modified carbon fiber, including：
(1) nano-magnetic powder ultrasound wave is distributed in water, adds Oleic acid and dodecylbenzene sodium sulfonate, be warmed up to 80 DEG C simultaneously
Insulation at least 1 hour, is cooled to room temperature, obtains magnetic powder dispersion liquid；
(2) by short carbon fiber and the aniline hydrochloride addition magnetic powder dispersion liquid, ultrasonic disperse at least 1 hour at 5 DEG C, plus
Enter ammonium persulfate solution, home position polymerization reaction 16 hours at 10 DEG C；
(3) replace washing reaction product with acetone with hydrochloric acid, it is 7 to be washed to pH, is filtered, and drying obtains the polyaniline
Modified carbon fiber.
The preparation method of embodiment 1-3 is coating one layer of conducting polymer electrically conductive polyaniline in carbon fiber surface, improves
Dispersibility of the carbon fiber in coating system.
Claims (1)
1. a kind of preparation method of electro and magneto conductive polyaniline modified carbon fiber, including：
(1) nano-magnetic powder ultrasound wave is distributed in water, adds Oleic acid and dodecylbenzene sodium sulfonate, be warmed up to 75-85 DEG C simultaneously
Insulation at least 1 hour, is cooled to room temperature, obtains magnetic powder dispersion liquid；
(2) by short carbon fiber and the aniline hydrochloride addition magnetic powder dispersion liquid, ultrasonic disperse at least 1 hour at 3-10 DEG C, plus
Enter ammonium persulfate solution, the home position polymerization reaction 12-18 hour at 5-15 DEG C；
(3) replace washing reaction product with acetone with hydrochloric acid, it is 7 to be washed to pH, is filtered, and drying obtains described polyaniline-modified
Carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989002.7A CN106519778A (en) | 2016-11-10 | 2016-11-10 | Conductive and magnetic-conductive polyaniline modified carbon fiber preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989002.7A CN106519778A (en) | 2016-11-10 | 2016-11-10 | Conductive and magnetic-conductive polyaniline modified carbon fiber preparation method |
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| CN106519778A true CN106519778A (en) | 2017-03-22 |
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| CN201610989002.7A Pending CN106519778A (en) | 2016-11-10 | 2016-11-10 | Conductive and magnetic-conductive polyaniline modified carbon fiber preparation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217491A (en) * | 2017-07-24 | 2017-09-29 | 巩义市泛锐熠辉复合材料有限公司 | The method that polyaniline-coated is modified chopped carbon fiber |
| CN110156345A (en) * | 2019-05-31 | 2019-08-23 | 金旸（厦门）新材料科技有限公司 | A kind of electroconductive glass fibre and electroconductive glass fibre enhancing nylon material and preparation method thereof |
| CN111180221A (en) * | 2020-01-06 | 2020-05-19 | 山东光韵智能科技有限公司 | Resin-based carbon fiber composite permanent magnet conductive contact and manufacturing method thereof |
| CN112813519A (en) * | 2020-12-31 | 2021-05-18 | 河北艾科瑞纤维有限公司 | Preparation method of magnetic acrylic fiber and magnetic acrylic fiber |
| CN114369955A (en) * | 2021-12-30 | 2022-04-19 | 山东仁丰特种材料股份有限公司 | Method for preparing high-performance electromagnetic shielding paper by using carbon fibers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009513A (en) * | 2016-06-13 | 2016-10-12 | 杭州超探新材料科技有限公司 | Preparing method of carbon fiber/polyaniline wave-absorbing electromagnetic shielding composite |
-
2016
- 2016-11-10 CN CN201610989002.7A patent/CN106519778A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106009513A (en) * | 2016-06-13 | 2016-10-12 | 杭州超探新材料科技有限公司 | Preparing method of carbon fiber/polyaniline wave-absorbing electromagnetic shielding composite |
Non-Patent Citations (3)
| Title |
|---|
| 喻冬秀: "导电导磁改性短碳纤维的制备及电磁特性的研究", 《无机材料学报》 * |
| 喻冬秀: "导电导磁聚苯胺包覆短碳纤维的研究", 《化工新型材料》 * |
| 喻冬秀等: "聚苯胺包覆短碳纤维的制备及电磁性能研究", 《高校化学工程学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217491A (en) * | 2017-07-24 | 2017-09-29 | 巩义市泛锐熠辉复合材料有限公司 | The method that polyaniline-coated is modified chopped carbon fiber |
| CN107217491B (en) * | 2017-07-24 | 2019-08-09 | 巩义市泛锐熠辉复合材料有限公司 | The method of the modified chopped carbon fiber of polyaniline-coated |
| CN110156345A (en) * | 2019-05-31 | 2019-08-23 | 金旸（厦门）新材料科技有限公司 | A kind of electroconductive glass fibre and electroconductive glass fibre enhancing nylon material and preparation method thereof |
| CN111180221A (en) * | 2020-01-06 | 2020-05-19 | 山东光韵智能科技有限公司 | Resin-based carbon fiber composite permanent magnet conductive contact and manufacturing method thereof |
| CN112813519A (en) * | 2020-12-31 | 2021-05-18 | 河北艾科瑞纤维有限公司 | Preparation method of magnetic acrylic fiber and magnetic acrylic fiber |
| CN114369955A (en) * | 2021-12-30 | 2022-04-19 | 山东仁丰特种材料股份有限公司 | Method for preparing high-performance electromagnetic shielding paper by using carbon fibers |
| CN114369955B (en) * | 2021-12-30 | 2023-04-25 | 山东仁丰特种材料股份有限公司 | Method for preparing high-performance electromagnetic shielding paper by using carbon fiber |
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