CN103981720B - Polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof - Google Patents
Polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof Download PDFInfo
- Publication number
- CN103981720B CN103981720B CN201410241476.4A CN201410241476A CN103981720B CN 103981720 B CN103981720 B CN 103981720B CN 201410241476 A CN201410241476 A CN 201410241476A CN 103981720 B CN103981720 B CN 103981720B
- Authority
- CN
- China
- Prior art keywords
- aramid fiber
- fiber
- arf
- composite conducting
- polyaniline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to a kind of polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof.Level and smooth and the chemical inertness that tool is stronger of aramid fiber surface, is difficult to adsorption of aniline monomer and obtains composite conducting fiber.The present invention take aramid fiber as base material, sodium hydroxide solution is used to carry out surface etch to it, aramid fiber surface is made to produce obvious pitting defects, based on Fu Lide-Kerafyrm thatch reaction, use epoxychloropropane to carry out surface modification to its aramid fiber, the phenyl ring of aramid fiber molecular backbone is introduced the larger epoxide group of reactivity, makes aniline can as active site, glycerol polymerization on aramid fiber, prepares composite conducting fiber.The present invention carries out surface modification to aramid fiber, reduces the chemical inertness on its surface, and the composite conducting fiber resistivity of preparation is low, and electric conductivity is superior.
Description
Technical field
The present invention relates to a kind of conductive fiber, be specifically related to a kind of polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof.
Background technology
In numerous conducting polymer, polyaniline (PANI) has higher conductance, and raw material is cheap, stable performance, and synthetic method is simple, the clear and doping level of Doping Mechanism can control, and thus becomes current and is hopeful one of Structural electric Polymer material obtaining commercial Application most.But because molecule chain rigidity and the intermediate polarity interaction of chain make its dissolubility extremely low, be dissolved in any organic solvent hardly, bring difficulty to the film forming of doped polyaniline and processing, seriously hamper its large-scale promotion application in every field.Therefore the processing characteristics improving polyaniline is the key problem in technology promoting that polyaniline is practical.Existing research shows, can be overcome the shortcoming of its poor in processability by polyaniline composite modification technology, obtains and has polyfunctional composite, expand its Application Areas.
Aramid fiber (Aramidfiber, ARF) is a kind of novel high-tech synthetic fiber, has superhigh intensity, high-modulus, high temperature resistant, acid-fast alkali-proof and the premium properties such as lightweight, is the novel special purpose synthetic fiber of a class.Because ARF has the advantages such as superhigh intensity, high-modulus, high temperature resistant and acid-fast alkali-proof, being applied to prepare composite fibre not only can make fiber have good electric conductivity, the mechanical property of matrix fiber can also be kept preferably, by the compound both PANI and ARF, preparation PANI/ARF composite conducting fiber, be prepare one of the most promising method of PANI conductive fiber at present, it makes the extensive use of PANI material become possibility.But the surface smoothing of ARF and have stronger chemical inertness, is difficult to the active basic point finding reaction on ARF surface, therefore prepares PANI/ARF composite conducting fiber, need to carry out surface modification treatment to improve its surface reaction activity to ARF.
Summary of the invention
The object of this invention is to provide a kind of polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof, surface modification is carried out to aramid fiber, reduce the chemical inertness of aramid fiber surface, be beneficial to the compound of both PANI and ARF.
The technical solution adopted in the present invention is:
The preparation method of polyaniline-modifying aramid fiber composite conducting fiber, is characterized in that:
Realized by following steps:
Step one: the grease of cleaning aramid fiber surface, get the undressed aramid fiber of 2g, be placed in 100mL acetone, ultrasonic 30min, then clean with distilled water, and be placed in the sodium dodecyl sulfate aqueous solution that mass fraction is 5%, ultrasonic 30min again, it is last that with distilled water, cleaning, drying are for subsequent use repeatedly;
Cleaned aramid fiber is put into the sodium hydroxide solution that mass fraction is 1%, in stirred under reflux temperature 2h, is washed till filtrate in neutral with distilled water afterwards, dries, prepare the ARF of alkali treatment, be designated as SH-ARF;
Step 2: add 1.5gSH-ARF fiber in there-necked flask, adds 150mL epoxychloropropane, starts to stir, and system is warming up to 95
oc, stirs 3h, between this stage of reaction, repeatedly adds 1g anhydrous Aluminum chloride on a small quantity in batches, by product suction filtration after fully reacting, clean with distilled water flushing, afterwards 60
osoak 1h with the sodium hydroxide solution of 5% under C, be washed till filtrate in neutral with distilled water after being disposed, and be dried, prepare epoxychloropropane modified ARF fiber, be designated as ECP-ARF;
Step 3: 0.1-1gECP-ARF is soaked in 15-90min in 1-5mL aniline, then join 90mL molal volume concentration is in the hydrochloric acid solution of 0.5-3mol/L simultaneously, at 0-35
ounder C condition, drip ammonium persulfate solution 20mL, the mol ratio controlling ammonium persulfate and aniline monomer is (0.5:1)-(2.5:1), cause aniline monomer at ECP-ARF surface aggregate, after reaction 9h, by product suction filtration, be washed till filtrate in neutral with distilled water, dry under room temperature, be prepared into polyaniline-modifying aramid fiber composite conducting fiber.
Described aramid fiber is para-aramid fiber or meta-aramid fibers.
As described in polyaniline-modifying aramid fiber composite conducting fiber of obtaining of the preparation method of polyaniline-modifying aramid fiber composite conducting fiber.
The present invention has the following advantages:
The present invention carries out surface modification with epoxychloropropane to aramid fiber, and the molecular backbone of aramid fiber is introduced the epoxide group that reactivity is larger, to reduce the chemical inertness on ARF surface.Meanwhile, aniline can as active site, glycerol polymerization on ARF, thus is more conducive to preparing the lower PANI/ARF composite conducting fiber of resistivity, and resistivity is 2.0 × 10
5Ω m-7.5 × 10
5within the scope of Ω m.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be described in detail.
The present invention take ARF as base material, uses sodium hydroxide solution to etch it, makes ARF surface produce obvious pitting defects.Then, based on Fu Lide-Kerafyrm thatch reaction (Friedel-Craftsreaction, parental materials on phenyl ring), epoxychloropropane (ECP) is used to carry out surface modification to its ARF, phenyl ring is introduced the epoxide group that reactivity is larger, make aniline can as active site, glycerol polymerization on ARF, thus the PANI/ECP-ARF composite conducting fiber of preparation excellent electric conductivity.Specifically realized by following steps:
Step one: the grease of cleaning aramid fiber surface, get the undressed aramid fiber of 2g (para-aramid fiber or meta-aramid fibers), be placed in 100mL acetone, ultrasonic 30min, then clean with distilled water, and be placed in the sodium dodecyl sulfate aqueous solution that mass fraction is 5%, ultrasonic 30min again, it is last that with distilled water, cleaning, drying are for subsequent use repeatedly;
Cleaned aramid fiber is put into the sodium hydroxide solution that mass fraction is 1%, in stirred under reflux temperature 2h, is washed till filtrate in neutral with distilled water afterwards, dries, prepare the ARF of alkali treatment, be designated as SH-ARF;
Step 2: add 1.5gSH-ARF fiber in there-necked flask, adds 150mL epoxychloropropane, starts to stir, and system is warming up to 95
oc, stirs 3h, between this stage of reaction, repeatedly adds 1g anhydrous Aluminum chloride on a small quantity in batches, by product suction filtration after fully reacting, clean with distilled water flushing, afterwards 60
osoak 1h with the sodium hydroxide solution of 5% under C, be washed till filtrate in neutral with distilled water after being disposed, and be dried, prepare epoxychloropropane modified ARF fiber, be designated as ECP-ARF;
Step 3: 0.1-1gECP-ARF is soaked in 15-90min in 1-5mL aniline, then join 90mL molal volume concentration is in the hydrochloric acid solution of 0.5-3mol/L simultaneously, at 0-35
ounder C condition, drip ammonium persulfate solution 20mL, the mol ratio controlling ammonium persulfate and aniline monomer is (0.5:1)-(2.5:1), cause aniline monomer at ECP-ARF surface aggregate, after reaction 9h, by product suction filtration, be washed till filtrate in neutral with distilled water, dry under room temperature, be prepared into polyaniline-modifying aramid fiber composite conducting fiber.
Embodiment 1:
Step one: the grease of cleaning aramid fiber surface, get the undressed aramid fiber of 2g (para-aramid fiber or meta-aramid fibers), be placed in 100mL acetone, ultrasonic 30min, then clean with distilled water, and be placed in the sodium dodecyl sulfate aqueous solution that mass fraction is 5%, ultrasonic 30min again, it is last that with distilled water, cleaning, drying are for subsequent use repeatedly;
Cleaned aramid fiber is put into the sodium hydroxide solution that mass fraction is 1%, in stirred under reflux temperature 2h, is washed till filtrate in neutral with distilled water afterwards, dries, prepare the ARF of alkali treatment, be designated as SH-ARF;
Step 2: add 1.5gSH-ARF fiber in there-necked flask, adds 150mL epoxychloropropane, starts to stir, and system is warming up to 95
oc, stirs 3h, between this stage of reaction, repeatedly adds 1g anhydrous Aluminum chloride on a small quantity in batches, by product suction filtration after fully reacting, clean with distilled water flushing, afterwards 60
osoak 1h with the sodium hydroxide solution of 5% under C, be washed till filtrate in neutral with distilled water after being disposed, and be dried, prepare epoxychloropropane modified ARF fiber, be designated as ECP-ARF;
Step 3: 0.1gECP-ARF is soaked in 15min in 1mL aniline, then join 90mL molal volume concentration is in the hydrochloric acid solution of 0.5mol/L simultaneously, 0
ounder C condition, drip ammonium persulfate solution 20mL, the mol ratio controlling ammonium persulfate and aniline monomer is 0.5:1, cause aniline monomer at ECP-ARF surface aggregate, after reaction 9h, by product suction filtration, filtrate is washed till in neutral with distilled water, dry under room temperature, be prepared into polyaniline-modifying aramid fiber composite conducting fiber, recording its resistivity is 7.5 × 10
5Ω m.
Embodiment 2:
Step one: the grease of cleaning aramid fiber surface, get the undressed aramid fiber of 2g (para-aramid fiber or meta-aramid fibers), be placed in 100mL acetone, ultrasonic 30min, then clean with distilled water, and be placed in the sodium dodecyl sulfate aqueous solution that mass fraction is 5%, ultrasonic 30min again, it is last that with distilled water, cleaning, drying are for subsequent use repeatedly;
Cleaned aramid fiber is put into the sodium hydroxide solution that mass fraction is 1%, in stirred under reflux temperature 2h, is washed till filtrate in neutral with distilled water afterwards, dries, prepare the ARF of alkali treatment, be designated as SH-ARF;
Step 2: add 1.5gSH-ARF fiber in there-necked flask, adds 150mL epoxychloropropane, starts to stir, and system is warming up to 95
oc, stirs 3h, between this stage of reaction, repeatedly adds 1g anhydrous Aluminum chloride on a small quantity in batches, by product suction filtration after fully reacting, clean with distilled water flushing, afterwards 60
osoak 1h with the sodium hydroxide solution of 5% under C, be washed till filtrate in neutral with distilled water after being disposed, and be dried, prepare epoxychloropropane modified ARF fiber, be designated as ECP-ARF;
Step 3: 0.2gECP-ARF is soaked in 30min in 2mL aniline, then join 90mL molal volume concentration is in the hydrochloric acid solution of 1mol/L simultaneously, 20
ounder C condition, drip ammonium persulfate solution 20mL, the mol ratio controlling ammonium persulfate and aniline monomer is 1:1, cause aniline monomer at ECP-ARF surface aggregate, after reaction 9h, by product suction filtration, filtrate is washed till in neutral with distilled water, dry under room temperature, be prepared into polyaniline-modifying aramid fiber composite conducting fiber, recording its resistivity is 6.0 × 10
5Ω m.
Embodiment 3:
Step one: the grease of cleaning aramid fiber surface, get the undressed aramid fiber of 2g (para-aramid fiber or meta-aramid fibers), be placed in 100mL acetone, ultrasonic 30min, then clean with distilled water, and be placed in the sodium dodecyl sulfate aqueous solution that mass fraction is 5%, ultrasonic 30min again, it is last that with distilled water, cleaning, drying are for subsequent use repeatedly;
Cleaned aramid fiber is put into the sodium hydroxide solution that mass fraction is 1%, in stirred under reflux temperature 2h, is washed till filtrate in neutral with distilled water afterwards, dries, prepare the ARF of alkali treatment, be designated as SH-ARF;
Step 2: add 1.5gSH-ARF fiber in there-necked flask, adds 150mL epoxychloropropane, starts to stir, and system is warming up to 95
oc, stirs 3h, between this stage of reaction, repeatedly adds 1g anhydrous Aluminum chloride on a small quantity in batches, by product suction filtration after fully reacting, clean with distilled water flushing, afterwards 60
osoak 1h with the sodium hydroxide solution of 5% under C, be washed till filtrate in neutral with distilled water after being disposed, and be dried, prepare epoxychloropropane modified ARF fiber, be designated as ECP-ARF;
Step 3: 1gECP-ARF is soaked in 90min in 5mL aniline, then join 90mL molal volume concentration is in the hydrochloric acid solution of 3mol/L simultaneously, 35
ounder C condition, drip ammonium persulfate solution 20mL, the mol ratio controlling ammonium persulfate and aniline monomer is 2.5:1, cause aniline monomer at ECP-ARF surface aggregate, after reaction 9h, by product suction filtration, filtrate is washed till in neutral with distilled water, dry under room temperature, be prepared into polyaniline-modifying aramid fiber composite conducting fiber, recording its resistivity is 2.0 × 10
5Ω m.
Content of the present invention is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading description of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
Claims (3)
1. the preparation method of polyaniline-modifying aramid fiber composite conducting fiber, is characterized in that:
Realized by following steps:
Step one: the activation processing of aramid fiber surface:
The grease of cleaning aramid fiber surface, gets the undressed aramid fiber of 2g, is placed in 100mL acetone, ultrasonic 30min, then cleans with distilled water, and is placed in the sodium dodecyl sulfate aqueous solution that mass fraction is 5%, ultrasonic 30min again, finally with distilled water, cleaning, drying are for subsequent use repeatedly;
Cleaned aramid fiber is put into the sodium hydroxide solution that mass fraction is 1%, in stirred under reflux temperature 2h, is washed till filtrate in neutral with distilled water afterwards, dries, prepare the ARF of alkali treatment, be designated as SH-ARF;
Step 2: SH-ARF's is epoxychloropropane modified:
In there-necked flask, add 1.5gSH-ARF fiber, add 150mL epoxychloropropane, start to stir, system is warming up to 95
oc, stirs 3h, between this stage of reaction, repeatedly adds 1g anhydrous Aluminum chloride on a small quantity in batches, by product suction filtration after fully reacting, clean with distilled water flushing, afterwards 60
osoak 1h with the sodium hydroxide solution of 5% under C, be washed till filtrate in neutral with distilled water after being disposed, and be dried, prepare epoxychloropropane modified ARF fiber, be designated as ECP-ARF;
Step 3: prepare polyaniline-modifying aramid fiber composite conducting fiber:
0.1-1gECP-ARF is soaked in 15-90min in 1-5mL aniline, then join 90mL molal volume concentration is in the hydrochloric acid solution of 0.5-3mol/L simultaneously, at 0-35
ounder C condition, drip ammonium persulfate solution 20mL, the mol ratio controlling ammonium persulfate and aniline monomer is (0.5:1)-(2.5:1), cause aniline monomer at ECP-ARF surface aggregate, after reaction 9h, by product suction filtration, be washed till filtrate in neutral with distilled water, dry under room temperature, be prepared into polyaniline-modifying aramid fiber composite conducting fiber.
2. the preparation method of polyaniline according to claim 1-modifying aramid fiber composite conducting fiber, is characterized in that:
Described aramid fiber is para-aramid fiber or meta-aramid fibers.
3. polyaniline-modifying aramid fiber composite conducting fiber of obtaining of the preparation method of polyaniline-modifying aramid fiber composite conducting fiber as claimed in claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410241476.4A CN103981720B (en) | 2014-06-03 | 2014-06-03 | Polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410241476.4A CN103981720B (en) | 2014-06-03 | 2014-06-03 | Polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103981720A CN103981720A (en) | 2014-08-13 |
| CN103981720B true CN103981720B (en) | 2016-04-20 |
Family
ID=51273876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410241476.4A Active CN103981720B (en) | 2014-06-03 | 2014-06-03 | Polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103981720B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193499A (en) * | 2017-12-20 | 2018-06-22 | 苏州禾川化学技术服务有限公司 | A kind of fiber metallizing treatment process |
| CN110628215B (en) * | 2019-10-08 | 2022-04-26 | 陕西科技大学 | Polyaniline/aramid nanofiber conductive composite film and preparation method thereof |
| CN110761077B (en) * | 2019-10-20 | 2022-05-13 | 南京理工大学 | Conductive polyaniline @ aramid nanofiber composite film material and preparation method thereof |
| CN110725124A (en) * | 2019-12-04 | 2020-01-24 | 中国科学院兰州化学物理研究所 | Interface enhancement method for para-aramid-polytetrafluoroethylene blended fiber fabric |
| CN111653433B (en) * | 2020-06-09 | 2021-11-30 | 陕西科技大学 | Polyaniline/silver nanowire cotton fiber capacitor electrode material and preparation method thereof |
| CN115679705A (en) * | 2021-07-21 | 2023-02-03 | 北京服装学院 | Conductive fiber and conductive fabric as well as preparation method and application thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000017576A (en) * | 1998-06-26 | 2000-01-18 | Toray Ind Inc | Modified polyester-based fiber-structured material and production thereof |
| CN101768856B (en) * | 2009-12-29 | 2011-12-28 | 陕西科技大学 | Super hydrophobic cotton fabric and preparation method thereof |
| CN101798752B (en) * | 2010-03-08 | 2012-01-11 | 西安交通大学 | Chemical method for activating aramid fiber surface |
| CN102337679A (en) * | 2010-07-27 | 2012-02-01 | 五邑大学 | Novel method for preparing polyaniline composite conductive fabric |
| CN102002868B (en) * | 2010-11-30 | 2012-01-11 | 常熟市宝沣特种纤维有限公司 | Normal-pressure dyeing method of meta-aramid yarn |
| CN103225210B (en) * | 2013-05-17 | 2014-09-17 | 苏州大学 | Surface grafting modified aramid fiber and preparation method thereof |
-
2014
- 2014-06-03 CN CN201410241476.4A patent/CN103981720B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103981720A (en) | 2014-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103981720B (en) | Polyaniline-modifying aramid fiber composite conducting fiber and preparation method thereof | |
| CN103981693B (en) | Polyaniline-alkali aramid fiber composite conducting fiber and preparation method thereof | |
| CN103981692B (en) | A kind of method of aramid fiber surface organic modification | |
| RU2016130030A (en) | CARBON FIBERS AND HIGH QUALITY FIBERS FOR COMPOSITE MATERIALS | |
| CN104211879B (en) | Method for preparing high-solid-content graphene oxide grafted polyacrylate composite emulsion by using in-situ method | |
| CN106554324A (en) | Metal-organic framework material and preparation method and application based on imidazoles salt form part | |
| CN105860086A (en) | Preparation method for hyperbranched polymer grafted carbon nanotube based on click chemistry | |
| CN102977292B (en) | Amphiphilic cross-linked fluoropolymer and application thereof in preparation of ultra-amphiphobic surface | |
| JP2008063319A5 (en) | ||
| CN105803672A (en) | Preparation method of conductive nanofiber membrane | |
| CN103709815A (en) | Water dispersible super-amphiphobic microsphere, preparation method and application thereof | |
| CN106750051A (en) | Modified Nano material of heteropoly acid stability and preparation method thereof in a kind of raising PEM | |
| CN107623137A (en) | A kind of preparation method of functional graphene oxide doping polybenzimidazole membrane | |
| CN108538630A (en) | A kind of preparation method of biomass carbon/graphene flexible compound film | |
| CN103709882A (en) | Super-amphiphobic surface with universality and its preparation method | |
| CN104923176A (en) | Dendritic high-density solid amine fiber material and preparation method therefor | |
| CN106146836A (en) | A kind of preparation method of conducting polymer/regenerated celulose fibre composite | |
| CN106519287A (en) | Preparation method of cellulose based conductive hydrogel | |
| CN106065020A (en) | A kind of preparation method of polymer solar battery small molecule receptor | |
| CN104437119A (en) | Polymer microporous membrane based on polyvinyl chloride ion liquid and preparation method of polymer microporous membrane | |
| CN103560259A (en) | POSS (Polyhedral Oligomeric Silsesquioxane) crosslinking type sulfonated polyimide proton exchange membrane as well as preparation method thereof | |
| CN103554353A (en) | Crosslinking fluorine-containing nanoparticle, and preparation method and application thereof | |
| CN103709379A (en) | Aromatic sulfonated poly ketone and preparation method thereof | |
| CN1148338C (en) | Fluorine-containing trifluorostyrene monomer and its synthesis and use | |
| CN109180934A (en) | A kind of preparation method of solvent-free meta-aramid fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |