CN101805935A - Novel antistatic acrylic fiber and preparation method of antistatic acrylic fiber - Google Patents
Novel antistatic acrylic fiber and preparation method of antistatic acrylic fiber Download PDFInfo
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- CN101805935A CN101805935A CN 201010140562 CN201010140562A CN101805935A CN 101805935 A CN101805935 A CN 101805935A CN 201010140562 CN201010140562 CN 201010140562 CN 201010140562 A CN201010140562 A CN 201010140562A CN 101805935 A CN101805935 A CN 101805935A
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Abstract
The invention relates to a novel antistatic acrylic fiber which comprises a carbon nano tube and carbon black, wherein the weight percent of the carbon nano tube is 1%-15%, the weight percent of the carbon black is 1%-3%, and the weight percent range of polyacrylonitrile is 82%-98%. The invention also relates to a preparation method of the antistatic acrylic fiber, a wet spinning method is used for spinning the acrylic fiber, and a coagulating bath comprises a carbon nano tube, wherein the carbon nano tube accounts for 20wt%-25wt% of the coagulating bath. The invention also provides another preparation method of the antistatic acrylic fiber, a wet spinning method is used for spinning the acrylic fiber, and coagulating baths sequentially comprise a first coagulating bath and a second coagulating bath containing antistatic agent, wherein the first coagulating bath is a water solution containing 10wt% of polyacrylonitrile, and the temperature of the first coagulating bath is -5 DEG C-10 DEG C; the second coagulating bath containing antistatic agent is a water solution containing antistatic agent, and the temperature of the second coagulating bath is -5 DEG C-10 DEG C; and the antistatic agent accounts for 45wt%-55wt% of the second coagulating bath and is the carbon nano tube.
Description
Technical field
The present invention relates to the preparation method of a kind of novel antistatic acrylic fibers and antistatic acrylic fibers, the present invention utilizes existing wet spinning technology, the acrylic fibers as-spun fibre that still is in gel state is carried out quick modification handle, and obtains antistatic fibre.
Background technology
The preparation of antistatic acrylic fibers, generally by acrylic fibers are carried out antistatic modified the realization, usually adopt following several method: (1) fiber surface facture: the antistatic surface of fiber is handled general slaine that can conduct electricity or the surfactant with antistatic property of adopting, and adopts methods such as spray, dipping, coating that fiber and fabric thereof are carried out surface treatment.(2) chemic modified method: the antistatic group of method surface grafting that utilizes chemistry.(3) blending modification method: add antistatic additive (carbon black or CNT etc.) in spinning solution, co-blended spinning can be made into the durable antistatic acrylic fibers.
The required antistatic additive of blending modification method has specific requirement, and addition is many, the spinnability variation, and physical properties such as fibrous mechanical property are influenced, if reduce the antistatic additive addition, spinnability improves but the antistatic effect variation.
Fiber or fabric are carried out surface treatment,, easily come off, influence the persistence of its antistatic effect from fiber or fabric face through washing back antistatic additive at its surface sprinkling or dipping antistatic additive.
Surface grafting complex process cost is higher, is difficult to industrial applications.
Summary of the invention
The present invention utilizes existing wet spinning technology, the acrylic fibers as-spun fibre that still is in gel state is carried out quick modification handle, and obtains antistatic fibre.The antistatic additive that the present invention uses is the slurries of CNT slurries or CNT and carbon black.CNT having guaranteed that acrylic fibers have under the prerequisite of good antistatic behaviour, has improved the intensity of fiber with its excellent electric conductivity and mechanical property again greatly, has guaranteed the quality behind the modifying orlon; Improved the following degradation shortcoming that present some method of modifying makes quality aspects such as fiber spinnability reduction and fibrous mechanical property.
A kind of novel antistatic acrylic fibers of the present invention, these acrylic fibers contain CNT and carbon black, and wherein the percetage by weight of CNT is 1%-15%, and the percetage by weight of carbon black is 1%-3%, and the percetage by weight scope of polyacrylonitrile is 82%-98%.
As optimized technical scheme:
Aforesaid a kind of novel antistatic acrylic fibers, described CNT diameter is 1～100nm, and length is 2～10 microns, and the tube wall number of CNT is 1～70; Described carbon black resistivity is 0.1～10 Ω cm, density 1.80～1.85g/cm
3, the particle diameter of carbon black is 20～200nm; The number-average molecular weight of described polyacrylonitrile is 5～100,000.
The present invention also provides a kind of manufacture method of antistatic acrylic fibers, adopt wet spinning process to be spun into acrylic fiber, acrylic spinning stoste squeezes out the formation thread from spinneret orifice, through the coagulating bath coagulation forming is as-spun fibre, entering stretches and be washed to postprocessing working procedures obtains acrylic fiber, described coagulating bath contains CNT, and wherein to account for the percetage by weight of coagulating bath be 20%～25% to CNT.
Aforesaid a kind of novel antistatic acrylic fibers, described CNT diameter is 1～100nm, and length is 2～10 microns, and the tube wall number of CNT is 1～70, and the number-average molecular weight of described polyacrylonitrile is 5～100,000.
Aforesaid a kind of novel antistatic acrylic fibers, described coagulating bath also contains carbon black, and wherein to account for the percetage by weight of coagulating bath be 5%～10% to carbon black.
Aforesaid a kind of novel antistatic acrylic fibers, described carbon black resistivity are 0.1～10 Ω cm, density 1.80～1.85g/cm
3, the particle diameter of carbon black is 20～200nm.
The present invention also provides the manufacture method of another kind of antistatic acrylic fibers, adopt wet spinning process to be spun into acrylic fiber, acrylic spinning stoste squeezes out the formation thread from spinneret orifice, through the coagulating bath coagulation forming is as-spun fibre, entering stretches and be washed to postprocessing working procedures obtains acrylic fiber, described coagulating bath comprises first coagulating bath successively and contains second coagulating bath two parts of antistatic additive, described first coagulating bath is to contain the aqueous solution that percentage by weight is 10% polyacrylonitrile, temperature is-5 ℃～10 ℃, described second coagulating bath that contains antistatic additive is the aqueous solution that contains antistatic additive, temperature is-5 ℃～10 ℃, described antistatic additive accounts for the 45wt%～55wt% of second coagulating bath, and described antistatic additive is a CNT.
Aforesaid a kind of novel antistatic acrylic fibers, described CNT diameter is 1～100nm, and length is 2～10 microns, and the tube wall number of CNT is 1～70, and the number-average molecular weight of described polyacrylonitrile is 5～100,000.
Aforesaid a kind of novel antistatic acrylic fibers, described antistatic additive also includes carbon black, and the percetage by weight of CNT is 65%～75% in antistatic additive, and the percetage by weight of carbon black is 25%～35%.
Aforesaid a kind of novel antistatic acrylic fibers, described carbon black resistivity are at 0.1～10 Ω cm, and density 1.80～1.85g/cm3, the particle diameter of carbon black are 20～200nm.
The invention has the beneficial effects as follows:
Comparing characteristics of the present invention with prior art is, adopts the online method of modifying of wet spinning, makes antistatic acrylic fibers.The manufacture method of a kind of antistatic acrylic fibers of the present invention, at first prepare acrylic spinning stoste, then stoste is extruded from spinneret orifice and form thread, the stoste thread becomes as-spun fibre through coagulating bath, import the antistatic additive bath with as-spun fibre and carry out gel infiltration this moment, make antistatic additive be well-dispersed in as-spun fibre, it is carried out quick modification, carry out post processing at last.
A kind of novel antistatic acrylic fibers of the present invention, good spinnability, the electric conductivity of fiber has obtained good improvement, has increased the intensity of fiber simultaneously again, has improved mechanical property, has improved the quality of antistatic acrylic fibers.
The manufacture method of a kind of antistatic acrylic fibers of the present invention is carried out quick modification to the acrylic fibers as-spun fibre that still is in gel state and is handled, and obtains antistatic fibre.Simplify antistatic acrylic fibers manufacturing technique, save the production time, be easy to suitability for industrialized production.
The manufacture method of the antistatic acrylic fibers of another kind of the present invention, technology is simple, and antistatic additive can be scattered in the as-spun fibre surface well, and spinnability is improved well, and the fiber antistatic effect is lasting.
CNT having guaranteed that acrylic fibers have under the prerequisite of good antistatic behaviour, has improved the intensity of fiber with its excellent electric conductivity and mechanical property again greatly, has guaranteed the quality behind the modifying orlon; Improved the following degradation shortcoming that present some method of modifying makes quality aspects such as fiber spinnability reduction and fibrous mechanical property.
Description of drawings
Fig. 1 is a kind of schematic diagram of antistatic acrylic fibers processing technology
Fig. 2 is the schematic diagram of another kind of antistatic acrylic fibers processing technology
Wherein 1, antistatic additive surge-tank 2, measuring pump 3, antistatic additive groove 4, circulating pump 5, filter 6, the coagulating bath 7 that contains antistatic additive, rotating drum 8, first coagulating bath 9, second coagulating bath
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
A kind of novel antistatic acrylic fibers of the present invention, these acrylic fibers contain CNT and carbon black, and wherein the percetage by weight of CNT is 1%-15%, and the percetage by weight of carbon black is 1%-3%, and the percetage by weight scope of polyacrylonitrile is 82%-98%.
Wherein, described CNT diameter is 1～100nm, and length is 2～10 microns, and the tube wall number of CNT is 1～70; Described carbon black resistivity is 0.1～10 Ω cm, density 1.80～1.85g/cm
3, the particle diameter of carbon black is 20～200nm; The number-average molecular weight of described polyacrylonitrile is 5～100,000.
As shown in Figure 1, it is a kind of schematic diagram of antistatic acrylic fibers processing technology, adopt wet spinning process to be spun into acrylic fiber, the number-average molecular weight of described polyacrylonitrile is 5～100,000, CNT passes through antistatic additive surge-tank 1, measuring pump 2 successively, arrive coagulating bath 6 by circulating pump 4 and filter 5 again, be back to antistatic additive groove 3 again and continue and carry, constitute the antistatic additive circulatory system by circulating pump 4.Acrylic spinning stoste squeezes out the formation thread from spinneret orifice, the coagulating bath that contains CNT 6 coagulation formings that process has swing roller 7 are as-spun fibre, wherein to account for the percetage by weight of coagulating bath be 20% to CNT, the CNT diameter is 1nm, length is 2 microns, the tube wall number of CNT is 1, and entering stretches and be washed to postprocessing working procedures obtains acrylic fiber.Content of carbon nanotubes is 1% in the acrylic fiber that makes, and its fracture strength is 5.2CN/dtex, and corpus fibrosum resistivity is 3.12 * 10
6Ω cm.
As shown in Figure 1, it is a kind of schematic diagram of antistatic acrylic fibers processing technology, adopt wet spinning process to be spun into acrylic fiber, the number-average molecular weight of described polyacrylonitrile is 5～100,000, CNT and carbon black pass through antistatic additive surge-tank 1, measuring pump 2 successively, arrive coagulating bath 6 by circulating pump 4 and filter 5 again, be back to antistatic additive groove 3 again and continue and carry, constitute the antistatic additive circulatory system by circulating pump 4.Acrylic spinning stoste squeezes out the formation thread from spinneret orifice, the coagulating bath that contains CNT and carbon black 6 coagulation formings that process has swing roller 7 are as-spun fibre, wherein to account for the percetage by weight of coagulating bath be 25% to CNT, the CNT diameter is 20nm, length is 4 microns, and the tube wall number of CNT is 10, and the percetage by weight that carbon black accounts for coagulating bath is 8%, described carbon black resistivity is 0.1 Ω cm, density 1.80～1.85g/cm
3, the particle diameter of carbon black is 20nm, entering stretches and be washed to postprocessing working procedures obtains acrylic fiber.Content of carbon nanotubes is 5% in the acrylic fiber that makes, and its fracture strength is 7.6CN/dtex, and corpus fibrosum resistivity is 1.5 * 10
5Ω cm.
As shown in Figure 2, it is a kind of schematic diagram of antistatic acrylic fibers processing technology, adopt wet spinning process to be spun into acrylic fiber, the number-average molecular weight of described polyacrylonitrile is 5～100,000, acrylic spinning stoste squeezes out the formation thread from spinneret orifice, through coagulating bath and swing roller 7 coagulation formings is as-spun fibre, described coagulating bath comprises first coagulating bath 8 successively and contains second coagulating bath, 9 two parts of antistatic additive, CNT passes through antistatic additive surge-tank 1 successively, measuring pump 2, arrive second coagulating bath 9 by circulating pump 4 and filter 5 again, be back to antistatic additive groove 3 again and continue and carry, constitute the antistatic additive circulatory system by circulating pump 4.Described first coagulating bath is to contain the aqueous solution that percentage by weight is 10% polyacrylonitrile, temperature is-5 ℃, described second coagulating bath that contains antistatic additive is the aqueous solution that contains antistatic additive, temperature is-5 ℃, described antistatic additive accounts for the 45wt% of second coagulating bath, and described antistatic additive is a CNT.The CNT diameter is 40nm, and length is 6 microns, and the tube wall number of CNT is 30.As-spun fibre enters to stretch and be washed to postprocessing working procedures and obtains acrylic fiber, and content of carbon nanotubes is 10% in the acrylic fiber that makes, and its fracture strength is 8.0CN/dtex, and corpus fibrosum resistivity is 3.8 * 10
4Ω cm.
Embodiment 4
As shown in Figure 2, it is a kind of schematic diagram of antistatic acrylic fibers processing technology, adopt wet spinning process to be spun into acrylic fiber, the number-average molecular weight of described polyacrylonitrile is 5～100,000, acrylic spinning stoste squeezes out the formation thread from spinneret orifice, through coagulating bath and swing roller 7 coagulation formings is as-spun fibre, described coagulating bath comprises first coagulating bath 8 successively and contains second coagulating bath, 9 two parts of antistatic additive, CNT and carbon black pass through antistatic additive surge-tank 1 successively, measuring pump 2, arrive second coagulating bath 9 by circulating pump 4 and filter 5 again, be back to antistatic additive groove 3 again and continue and carry, constitute the antistatic additive circulatory system by circulating pump 4.Described first coagulating bath is to contain the aqueous solution that percentage by weight is 10% polyacrylonitrile, temperature is 10 ℃, described second coagulating bath that contains antistatic additive is the aqueous solution that contains antistatic additive, temperature is 10 ℃, described antistatic additive accounts for the 55wt% of second coagulating bath, and described antistatic additive is CNT and carbon black.Wherein the percetage by weight of CNT is 75%, and the percetage by weight of carbon black is 25%.The CNT diameter is 100nm, and length is 10 microns, and the tube wall number of CNT is 70, and described carbon black resistivity is 10 Ω cm, density 1.80～1.85g/cm
3, the particle diameter of carbon black is 200nm.As-spun fibre enters to stretch and be washed to postprocessing working procedures and obtains acrylic fiber, and content of carbon nanotubes is 15% in the acrylic fiber that makes, and its fracture strength is 8.8CN/dtex, and corpus fibrosum resistivity is 1.3 * 10
3Ω cm.
Claims (10)
1. novel antistatic acrylic fibers, it is characterized in that: these acrylic fibers contain CNT and carbon black, and wherein the percetage by weight of CNT is 1%-15%, and the percetage by weight of carbon black is 1%-3%, and the percetage by weight scope of polyacrylonitrile is 82%-98%.
2. a kind of novel antistatic acrylic fibers as claimed in claim 1 is characterized in that described CNT diameter is 1～100nm, and length is 2～10 microns, and the tube wall number of CNT is 1～70; Described carbon black resistivity is 0.1～10 Ω cm, density 1.80～1.85g/cm
3, the particle diameter of carbon black is 20～200nm; The number-average molecular weight of described polyacrylonitrile is 5～100,000.
3. the manufacture method of antistatic acrylic fibers, adopt wet spinning process to be spun into acrylic fiber, acrylic spinning stoste squeezes out the formation thread from spinneret orifice, through the coagulating bath coagulation forming is as-spun fibre, entering stretches and be washed to postprocessing working procedures obtains acrylic fiber, it is characterized in that: described coagulating bath contains CNT, and wherein to account for the percetage by weight of coagulating bath be 20%～25% to CNT.
4. a kind of novel antistatic acrylic fibers as claimed in claim 3 is characterized in that described CNT diameter is 1～100nm, and length is 2～10 microns, and the tube wall number of CNT is 1～70, and the number-average molecular weight of described polyacrylonitrile is 5～100,000.
5. a kind of novel antistatic acrylic fibers as claimed in claim 3 is characterized in that described coagulating bath also contains carbon black, and wherein to account for the percetage by weight of coagulating bath be 5%～10% to carbon black.
6. a kind of novel antistatic acrylic fibers as claimed in claim 4 is characterized in that, described carbon black resistivity is 0.1～10 Ω cm, density 1.80～1.85g/cm
3, the particle diameter of carbon black is 20～200nm.
7. the manufacture method of antistatic acrylic fibers, adopt wet spinning process to be spun into acrylic fiber, acrylic spinning stoste squeezes out the formation thread from spinneret orifice, through the coagulating bath coagulation forming is as-spun fibre, entering stretches and be washed to postprocessing working procedures obtains acrylic fiber, it is characterized in that: described coagulating bath comprises first coagulating bath successively and contains second coagulating bath two parts of antistatic additive, described first coagulating bath is to contain the aqueous solution that percentage by weight is 10% polyacrylonitrile, temperature is-5 ℃～10 ℃, described second coagulating bath that contains antistatic additive is the aqueous solution that contains antistatic additive, temperature is-5 ℃～10 ℃, described antistatic additive accounts for the 45wt%～55wt% of second coagulating bath, and described antistatic additive is a CNT.
8. a kind of novel antistatic acrylic fibers as claimed in claim 7 is characterized in that described CNT diameter is 1～100nm, and length is 2～10 microns, and the tube wall number of CNT is 1～70, and the number-average molecular weight of described polyacrylonitrile is 5～100,000.
9. a kind of novel antistatic acrylic fibers as claimed in claim 7 is characterized in that described antistatic additive also includes carbon black, and the percetage by weight of CNT is 65%～75% in antistatic additive, and the percetage by weight of carbon black is 25%～35%.
10. a kind of novel antistatic acrylic fibers as claimed in claim 9 is characterized in that, described carbon black resistivity is at 0.1～10 Ω cm, and density 1.80～1.85g/cm3, the particle diameter of carbon black are 20～200nm.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789863A (en) * | 2014-01-07 | 2014-05-14 | 江南大学 | Manufacturing method of white acrylic conductive fiber |
| CN105316824A (en) * | 2014-07-22 | 2016-02-10 | 句容市润龙纺织品有限公司 | Anti-static acrylic fiber and preparation method thereof |
| CN106498703A (en) * | 2016-10-08 | 2017-03-15 | 常州创索新材料科技有限公司 | A kind of preparation method of moisture absorption antistatic acrylic fiber fiber |
| CN107419367A (en) * | 2017-08-18 | 2017-12-01 | 东华大学 | A kind of antibacterial acrylic fibre and preparation method thereof |
| CN111334900A (en) * | 2020-03-05 | 2020-06-26 | 江西铜业技术研究院有限公司 | Preparation method and application of antistatic fiber |
| CN112725911A (en) * | 2020-12-22 | 2021-04-30 | 南通新帝克单丝科技股份有限公司 | High-dpf polyamide industrial yarn for electronic components and production method thereof |
| US11078608B2 (en) * | 2016-11-01 | 2021-08-03 | Teijin Limited | Fabric, method for manufacturing same, and fiber product |
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| CN1840750A (en) * | 2006-02-09 | 2006-10-04 | 东华大学 | Electrically conductive composite fibre containing carbon nanotube and method for making same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789863A (en) * | 2014-01-07 | 2014-05-14 | 江南大学 | Manufacturing method of white acrylic conductive fiber |
| CN105316824A (en) * | 2014-07-22 | 2016-02-10 | 句容市润龙纺织品有限公司 | Anti-static acrylic fiber and preparation method thereof |
| CN106498703A (en) * | 2016-10-08 | 2017-03-15 | 常州创索新材料科技有限公司 | A kind of preparation method of moisture absorption antistatic acrylic fiber fiber |
| US11078608B2 (en) * | 2016-11-01 | 2021-08-03 | Teijin Limited | Fabric, method for manufacturing same, and fiber product |
| CN107419367A (en) * | 2017-08-18 | 2017-12-01 | 东华大学 | A kind of antibacterial acrylic fibre and preparation method thereof |
| CN107419367B (en) * | 2017-08-18 | 2019-08-16 | 东华大学 | A kind of antibacterial acrylic fibre and preparation method thereof |
| CN111334900A (en) * | 2020-03-05 | 2020-06-26 | 江西铜业技术研究院有限公司 | Preparation method and application of antistatic fiber |
| CN112725911A (en) * | 2020-12-22 | 2021-04-30 | 南通新帝克单丝科技股份有限公司 | High-dpf polyamide industrial yarn for electronic components and production method thereof |
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Application publication date: 20100818 Assignee: Yiwu New Rainbow Art & Craft Carpet Co.,Ltd. Assignor: Donghua University Contract record no.: 2014330000279 Denomination of invention: Novel antistatic acrylic fiber and preparation method of antistatic acrylic fiber Granted publication date: 20121205 License type: Exclusive License Record date: 20140707 |
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