CN1944782A - Method for preparing super fine light conductive fibre - Google Patents
Method for preparing super fine light conductive fibre Download PDFInfo
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- CN1944782A CN1944782A CN 200610032518 CN200610032518A CN1944782A CN 1944782 A CN1944782 A CN 1944782A CN 200610032518 CN200610032518 CN 200610032518 CN 200610032518 A CN200610032518 A CN 200610032518A CN 1944782 A CN1944782 A CN 1944782A
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Abstract
The process of preparing super fine light conductive fiber includes the following steps: electrically spinning polymer to form super fine light polymer fiber; and 2. chemically plating the super fine light polymer fiber. The prepared super fine light conductive fiber has the features diameter smaller than 1 micron, length smaller than 50 microns, density smaller than 2 g/cu cm and high conductivity. It may be used as the conductive filler for conducting adhesive in circuit board and electrode in the electronic industry, and the conducting adhesive has excellent conductivity and high stability.
Description
Technical field
The present invention relates to a kind of super fine light conductive fibre preparation method.
Background technology
As widely used conductive adhesive in the electronics industry, mix by conductive materials such as metal dust, metal fibre or sheet metal and polymeric matrix usually at present.For reaching the favorable conductive ability, need the metallic packing of big loading usually since the density of metal normally polymer 3-18 doubly, so not only the consumption of metallic packing is big, and metal free settling in polymer makes the glue instability.In conductive filler commonly used, gold, silver have good electric conductivity and corrosion resistance, but price is expensive.Copper has good electric conductivity but is oxidized easily, has patented technology silver-plated on copper powder [CN1826665] at present, thereby not only can guarantee electric conductivity but also reduced cost.In order to reduce the density of conductive filler, thereby to reduce consumption and improve settlement issues, have the technology [SAMPL Journal 19,6] of on non-metal powder chemical plating or plated metal, just but the plating powder still needs big loading to obtain better electric conductivity.Metallized fibre can promptly have good electrical conductivity at less loading, but the polymers for general use staple fibre is because diameter thick (general 1-10 μ m), when plating behind the metal conductive component as conductive adhesive, the occasion ultra-fine at ask for something still is restricted.Polymer electrospun can prepare the ultra-fine polymer fibre [Nanotechnology of diameter from several nanometers to several microns, 7,216], the polymer fiber diameter that general electrostatic spinning is collected is that tens nanometers are between the hundreds of nanometer, it is ground into tens microns length, still has bigger draw ratio.But because the normally nonconducting insulator of polymer will obtain conductive fiber and must plate metal level on the polymer fiber after the electrospinning.
Summary of the invention
The purpose of this invention is to provide that a kind of loading is little, the preparation method of the super fine light conductive fibre of good electrical conductivity.
The objective of the invention is to realize in the following way: a kind of preparation method of super fine light conductive fibre is characterized in that: comprising: (a) polymer prepares the superthin light polymer fiber by electrospinning; (b) chemical plating metal on the superthin light polymer fiber.
Polymer is selected polyethylene for use, polypropylene, polyvinyl chloride, polystyrene, polyacrylonitrile, polyethylene glycol oxide, polyvinyl alcohol, polyester, PVP, polyamide, polymethyl methacrylate, polyurethane, polyvinylidene fluoride, polyvinylidene fluoride-copolymerization-hexafluoropropene.
Can adopt polymer solution to carry out electrospinning and prepare the superthin light polymer fiber, also can adopt polymer melt to carry out electrospinning and prepare the superthin light polymer fiber.
The used solvent of polymer solution is selected carrene for use, chloroform, oxolane, acetone, methyl alcohol, ethanol, formic acid, acetate, dimethyl formamide, dimethylacetylamide, toluene.
Voltage is 1-40kV during electric spinning superfine lightweight polymeric fiber.
The diameter of electric spinning superfine lightweight polymeric fiber is 1nm-5 μ m, and fibre length is selected for use in 10 μ m-1cm scopes, and fibre density is 1.0-2.5g/cm
3
The superthin light polymer fiber is carried out carrying out chemical plating after sensitization, the activation processing.
Used sensitizing solution contains stannous chloride, or titanium trichloride, hydrochloric acid, tin bar and their mixture.
Used activating solution contains stannous chloride, palladium salt, silver salt, hydrochloric acid, boric acid, acetate, ammoniacal liquor and their mixture.
The superthin light polymer fiber is silver-plated in chemical plating fluid, nickel, copper, gold or their alloy.
The present invention has following beneficial effect, the superthin light polymer fiber has ultra-fine (can obtain diameter＜1 μ m, length＜50 μ m), lightweight (density≤2g/cm
3) characteristics.Can be used as in the electronics industry circuit board and electrode with the conductive filler in the conductive adhesive, not only loading is little, and this class conductive fiber of only filling 10-50wt% can obtain good electrical conductivity in the polymeric matrix, and (specific insulation is 1 * 10
-1-1 * 10
-4And this class conductive fiber is at polymeric matrix free settling not, the glue good stability of preparation Ω cm).
Description of drawings
Fig. 1 is a preparation process schematic diagram of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with specific embodiment:
As shown in Figure 1, preparation process is: the polymer dissolution of 5-30% is after corresponding solvent, pack in the syringe (3), the syringe that is filled with water (2) push rod average rate under the effect of circulating pump (1) presses down syringe (3), open high voltage source (4), polymer liquid on the syringe needle (positive pole) drops in and flies to negative pole under the effect of high voltage electric field and form fiber, drops in the collection cups (5).According to the length requirement of required fiber, with tunica fibrosa grinding and sieving in high speed machine, fiber is through sensitization (6), and back chemical plating metal (8) is handled in activation (7), after the drying (9), obtains the conductive fiber (10) of superthin light.
Embodiment 1:
15g polyacrylonitrile (PAN) is dissolved in the 100g dimethyl formamide (DMF), under the high pressure of 10-30 kilovolt, carries out electrostatic spinning, the superfine polypropylene nitrile fiber that obtains.Sieve after blending at a high speed, can obtain diameter is 0.01-1 μ m, the staple fibre of required different length.Through sensitizing solution (stannous chloride 10g/L, hydrochloric acid 50mL/L) sensitization, activating solution (palladium bichloride 0.3g/L, hydrochloric acid 10g/L) activation is then at chemical bronze plating liquid (copper sulphate 10g/L, sodium potassium tartrate tetrahydrate 40g/L, potassium hydroxide 20g/L, formaldehyde 15g/L) copper facing is 30 minutes in, and through filtering and drying, promptly obtaining density is 1.9g/cm
3The copper facing conductive fiber.
Embodiment 2:
75g polyacrylonitrile (PAN) is dissolved in the 500g dimethyl formamide (DMF), under the high pressure of 10-30 kilovolt, carries out electrostatic spinning, the superfine polypropylene nitrile fiber that obtains.Sieve after blending at a high speed, can obtain diameter is 0.01-1 μ m, the staple fibre of required different length.Through sensitizing solution (stannous chloride 10g/L, hydrochloric acid 50mL/L) sensitization, activating solution (palladium bichloride 0.3g/L, hydrochloric acid 10g/L) activation is then at chemical plating liquid (silver nitrate 5g/L, potassium hydroxide 2g/L, invert sugar 0.7g/L) in silver-plated 5 minutes, through filtering and dry, promptly obtaining density was 2g/cm
3Silver-plated conductive fiber.
Claims (10)
1, a kind of preparation method of super fine light conductive fibre is characterized in that: comprising: (a) polymer prepares the superthin light polymer fiber by electrospinning; (b) chemical plating metal on the superthin light polymer fiber.
2, the preparation method of super fine light conductive fibre according to claim 1, it is characterized in that: polymer is selected polyethylene for use, polypropylene, polyvinyl chloride, polystyrene, polyacrylonitrile, polyethylene glycol oxide, polyvinyl alcohol, polyester, PVP, polyamide, polymethyl methacrylate, polyurethane, polyvinylidene fluoride, polyvinylidene fluoride-copolymerization-hexafluoropropene.
3, the preparation method of super fine light conductive fibre according to claim 1, it is characterized in that: can adopt polymer solution to carry out electrospinning and prepare the superthin light polymer fiber, also can adopt polymer melt to carry out electrospinning and prepare the superthin light polymer fiber.
4, the preparation method of super fine light conductive fibre according to claim 3 is characterized in that: the used solvent of polymer solution is selected carrene for use, chloroform, oxolane, acetone, methyl alcohol, ethanol, formic acid, acetate, dimethyl formamide, dimethylacetylamide, toluene.
5, the preparation method of super fine light conductive fibre according to claim 1 is characterized in that: voltage is 1-40kV during electric spinning superfine lightweight polymeric fiber.
6, the preparation method of super fine light conductive fibre according to claim 1 is characterized in that: the diameter of electric spinning superfine lightweight polymeric fiber is 1nm-5 μ m, and fibre length is selected for use in 10 μ m-1cm scopes, and fibre density is 1.0-2.0g/cm
3
7, the preparation method of super fine light conductive fibre according to claim 1 is characterized in that: the superthin light polymer fiber is carried out carrying out chemical plating after sensitization, the activation processing.
8, the preparation method of super fine light conductive fibre according to claim 7 is characterized in that: used sensitizing solution contains stannous chloride or titanium trichloride, hydrochloric acid, tin bar.
9, the preparation method of super fine light conductive fibre according to claim 7 is characterized in that: used activating solution contains stannous chloride, palladium salt, silver salt, hydrochloric acid, boric acid, acetate, ammoniacal liquor.
10, the preparation method of super fine light conductive fibre according to claim 1 is characterized in that: the superthin light polymer fiber is silver-plated in chemical plating fluid, nickel, copper, gold or their alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100325189A CN100436701C (en) | 2006-11-03 | 2006-11-03 | Method for preparing super fine light conductive fibre |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100325189A CN100436701C (en) | 2006-11-03 | 2006-11-03 | Method for preparing super fine light conductive fibre |
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| CN1944782A true CN1944782A (en) | 2007-04-11 |
| CN100436701C CN100436701C (en) | 2008-11-26 |
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| CNB2006100325189A Expired - Fee Related CN100436701C (en) | 2006-11-03 | 2006-11-03 | Method for preparing super fine light conductive fibre |
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Cited By (8)
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| CN102409531A (en) * | 2011-09-02 | 2012-04-11 | 东华大学 | Method for preparing electrospun composite nanoscale fiber felt containing nanoscale palladium particles |
| CN102633275A (en) * | 2011-02-15 | 2012-08-15 | 长春理工大学 | Bead chain manganese borate Mn2BO3 one-dimensional nano-fiber and preparation method thereof |
| CN103668529A (en) * | 2012-09-06 | 2014-03-26 | 北京服装学院 | Method of preparing compound conductive fibers, compound conductive fibers obtained by method and application of compound conductive fibers |
| CN105802092A (en) * | 2016-05-17 | 2016-07-27 | 武汉理工大学 | Fluorine-containing polymer/conductive fiber dielectric material and preparation method thereof |
| CN108588942A (en) * | 2018-04-10 | 2018-09-28 | 常熟市翔鹰特纤有限公司 | A kind of acrylic fibers copper facing-boron alloy electrically conductive filament and preparation method thereof |
| CN110894677A (en) * | 2019-11-08 | 2020-03-20 | 东华大学 | Conductive nanofiber membrane and preparation method thereof |
| CN110926663A (en) * | 2019-12-03 | 2020-03-27 | 东华大学 | Preparation method of washable wearable high-sensitivity pressure sensor |
| CN111455423A (en) * | 2020-05-13 | 2020-07-28 | 太仓市金鹿电镀有限公司 | Electroplating method of plasma modified material |
Family Cites Families (6)
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| CN1192568A (en) * | 1997-03-03 | 1998-09-09 | 马明朴 | Conductive fiber core flexible cable and process for producing same |
| WO2005021845A1 (en) * | 2003-08-28 | 2005-03-10 | Sabanci Universitesi | Metal coated nano fibres |
| CZ20032421A3 (en) * | 2003-09-08 | 2004-11-10 | Technická univerzita v Liberci | Process for producing nanofibers of polymer solution by electrostatic spinning and apparatus for making the same |
| CN1283854C (en) * | 2004-05-31 | 2006-11-08 | 吉林大学 | Electrical spinning method for making metal nanometer particles in order in high-polymer nanometer fibre |
| CN100402200C (en) * | 2005-11-21 | 2008-07-16 | 谢广文 | Method for preparing nano metal pipe by template chemical plating process |
| CN100469954C (en) * | 2006-03-22 | 2009-03-18 | 浙江大学 | Preparation of acrylon nano fiber membrane carrier materials and use thereof |
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2006
- 2006-11-03 CN CNB2006100325189A patent/CN100436701C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102633275A (en) * | 2011-02-15 | 2012-08-15 | 长春理工大学 | Bead chain manganese borate Mn2BO3 one-dimensional nano-fiber and preparation method thereof |
| CN102409531A (en) * | 2011-09-02 | 2012-04-11 | 东华大学 | Method for preparing electrospun composite nanoscale fiber felt containing nanoscale palladium particles |
| CN102409531B (en) * | 2011-09-02 | 2013-10-09 | 东华大学 | Method for preparing electrospun composite nanoscale fiber felt containing nanoscale palladium particles |
| CN103668529A (en) * | 2012-09-06 | 2014-03-26 | 北京服装学院 | Method of preparing compound conductive fibers, compound conductive fibers obtained by method and application of compound conductive fibers |
| CN103668529B (en) * | 2012-09-06 | 2015-10-21 | 北京服装学院 | Prepare composite conducting fiber method, the composite conducting fiber obtained thus and application thereof |
| CN105802092A (en) * | 2016-05-17 | 2016-07-27 | 武汉理工大学 | Fluorine-containing polymer/conductive fiber dielectric material and preparation method thereof |
| CN108588942A (en) * | 2018-04-10 | 2018-09-28 | 常熟市翔鹰特纤有限公司 | A kind of acrylic fibers copper facing-boron alloy electrically conductive filament and preparation method thereof |
| CN110894677A (en) * | 2019-11-08 | 2020-03-20 | 东华大学 | Conductive nanofiber membrane and preparation method thereof |
| CN110894677B (en) * | 2019-11-08 | 2022-03-04 | 东华大学 | Conductive nanofiber membrane and preparation method thereof |
| CN110926663A (en) * | 2019-12-03 | 2020-03-27 | 东华大学 | Preparation method of washable wearable high-sensitivity pressure sensor |
| CN111455423A (en) * | 2020-05-13 | 2020-07-28 | 太仓市金鹿电镀有限公司 | Electroplating method of plasma modified material |
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|---|---|
| CN100436701C (en) | 2008-11-26 |
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