CN106835707A - A kind of stainless steel fibre based on bamboo fibre doped polyaniline and preparation method thereof - Google Patents
A kind of stainless steel fibre based on bamboo fibre doped polyaniline and preparation method thereof Download PDFInfo
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Abstract
The present invention provides a kind of stainless steel fibre based on bamboo fibre doped polyaniline and preparation method thereof, including the film of the bamboo fibre doped polyaniline of lattice structure stainless steel fibre and core-shell structure is contained on surface, and preparation method is：Bamboo fibre after aniline monomer and surface active is mixed and is dissolved in doping acid solution, form solution A；Dissolve ammonium persulfate into another doping acid solution, be designated as solution B；It is cooled to 0 DEG C after both are stirred respectively, it is stand-by；Using the mixture of perchloric acid and ethylene glycol as electrolyte, electrochemical treatments etching is carried out to electrode pair stainless steel fibre using four electrode electro Chemical cell platinum, stainless steel fibre is taken out and is rinsed, be placed in hydrofluoric acid and corrode, nitrogen is dried；Solution B is stirred into 30min, stainless steel fibre is inserted, solution A is added dropwise, the oxidative polymerization at 0 DEG C after completion of the reaction, stainless steel fibre is taken out, wash drying, that is, obtain the stainless steel fibre based on bamboo fibre doped polyaniline.
Description
Technical field
The invention belongs to conducting polymer composite technical field, and in particular to it is a kind of based on bamboo fibre doped polyaniline not
Rust steel fibre and preparation method thereof.
Background technology
Conducting polymer is also referred to as conducting polymer, with special molecular structure and excellent physical and chemical performance, in electricity
Before the fields such as container, sensor, fuel cell, anticorrosive metal and organic matter conductor photocatalysis degraded have a wide range of applications
Scape.
Conducting polymer can be divided into by structure and preparation method：Structural conductive macromolecular and composite conductive polymer.
Structural conductive macromolecular can be classified into Ionic conductivity macromolecule again according to the species of conducting carriers and electron type is conductive high
Molecule.The high molecular carrier of Ionic conductivity is mainly negative ions；The carrier of electron type conducting polymer be electronics or
Hole, mainly conjugated polymer, this kind of conducting polymer mostly contain aromatic monocyclic, polycyclic and heterocycle, mainly have polyaniline,
Polypyrrole and polythiophene etc., are the emphasis of conducting polymer composite research and development.Composite conductive polymer refers in macromolecule
The conductive materials such as a considerable amount of metals or carbon are added in polymer, is composited by dispersion, lamination, overlay coating etc., had
There is metallic conductivity, have important application at aspects such as electrically-conducting paint, conductive rubber, anti-static material and electromagnetic shielding materials.
As research finds that polyaniline can make the current potential of stainless steel fibre maintain stable passivation region domain, anode is at
Guard mode, polyaniline is more and more in the application and research of anti-corrosion of metal engineering field.Chinese patent CN 104451826A are public
A kind of stainless steel surfaces polyaniline-polyvinylpyrrolidone composite membrane opened and preparation method thereof, will contain aniline and polyethylene
The aqueous sulfuric acid of pyrrolidones be electrolyte, using cyclic voltammetry the strata aniline of stainless steel surfaces electrochemical deposition one-
Polyvinylpyrrolidone composite membrane, is acted on the corrosion protection for improving stainless steel base.Chinese patent CN 102876037B are disclosed
The electrochemical in-situ polymerization method for preparing metal/polyaniline/composite plastic film, be by the stainless steel plate that cellular plastic film is wrapped up
Anode, with aniline-acid solution as electrolyte, polyaniline/Plastic conductive composite membrane is obtained through electrochemical deposition, by polyaniline/
Plastic conductive composite membrane is negative electrode, and silver ion solution is electrolyte, obtains metal/polyaniline/plastics through electrochemical deposition multiple
Film is closed, finally under inert gas or vacuum environment, heated insulation obtains conductive composite film.Can by above-mentioned prior art
Know, it is all that simple utilization aniline monomer is polymerized in stainless steel surfaces to be currently based on polyaniline in the arrangement of stainless steel surfaces, is gathered
Aniline improves very limited to the functional performance of stainless steel, therefore, will be favourable for stainless steel fibre and the modified of polyaniline film
In the imparting more features of stainless steel material.
The content of the invention
The technical problem to be solved in the present invention be to provide a kind of stainless steel fibre based on bamboo fibre doped polyaniline and its
Preparation method, the film of the bamboo fibre doped polyaniline to form core-shell structure is prepared using in situ chemical oxidative polymerization method, electrification
Corrosion preparation forms surface and contains lattice structure stainless steel fibre, and the film of bamboo fibre doped polyaniline is covered in into stainless steel
The surface of fiber, improves adsorption capacity, capability of electromagnetic shielding and the Corrosion Protection of stainless steel fibre.
In order to solve the above technical problems, the technical scheme is that：
A kind of stainless steel fibre based on bamboo fibre doped polyaniline, the stainless steel based on bamboo fibre doped polyaniline
Fiber includes the film of stainless steel fibre and bamboo fibre doped polyaniline, and the film of the bamboo fibre doped polyaniline is shell core knot
Structure, the stratum nucleare of the core-shell structure is bamboo fibre, and the shell is polyaniline, and dot matrix knot is contained on the stainless steel fibre surface
Structure.
Used as the preferred of above-mentioned technical proposal, the film of the bamboo fibre doped polyaniline is poly- using in situ chemical oxidation
Legal to be prepared from, the stainless steel fibre is prepared from by electrochemical corrosion.
The present invention also provides a kind of preparation method of the stainless steel fibre based on bamboo fibre doped polyaniline, including following step
Suddenly：
(1) using a kind of as raw material in sulfuric acid, hydrochloric acid, phosphoric acid and DBSA, doping acid solution is configured, will
It is uniformly divided into two parts, standby；
(2) weigh appropriate aniline monomer to be mixed with the bamboo fibre after surface active, after standing 30min, be added into
In a copy of it doping acid solution prepared by step (1), solution A is designated as；Weigh appropriate oxidant ammonium persulfate and be dissolved in step (1)
In another doping acid solution for preparing, solution B is designated as；0 DEG C is cooled to after above-mentioned solution A and solution B are stirred respectively,
It is stand-by；
(3) using the mixture of perchloric acid and ethylene glycol as electrolyte, using four electrode electro Chemical cell platinum to electrode pair
Stainless steel fibre carries out electrochemical treatments：Center is stainless steel fibre, and periphery is three platinum electrodes in stable triangle structure,
The stainless steel fibre positive pole that switches on power is etched, and under 20-30V voltages, reacts 40-60s, and stainless steel fibre is taken out, and is spent
After ionized water is gently rinsed, it is placed at room temperature in hydrofluoric acid and corrodes, be subsequently placed under nitrogen atmosphere and dry 3.5-4.5h, obtains
Contain the stainless steel fibre of lattice structure in surface；
(4) solution B for preparing step (2) stirs 30min, and lattice structure is contained on surface prepared by inserting step (3)
Stainless steel fibre, solution A prepared by dropwise addition step (2), the oxidative polymerization 1-12h at 0 DEG C, after completion of the reaction, will be stainless
Steel fibre takes out, washing, is dried at 40 DEG C, that is, obtain the stainless steel fibre based on bamboo fibre doped polyaniline.
Used as the preferred of above-mentioned technical proposal, in the step (1), the concentration of the acid solution that adulterates is 1mol/L.
Used as the preferred of above-mentioned technical proposal, in the step (2), the preparation method of the bamboo fibre after surface active is：
Bamboo fibre is passed through into ultraviolet irradiation or oxygen gas plasma activation process 30-120min.
Used as the preferred of above-mentioned technical proposal, in the step (2), the bamboo fibre after surface active contains 40 mesh and 80 mesh
The mass ratio of the bamboo fibre of two kinds of sizes, the bamboo fibre of 40 mesh surface actives and 80 mesh surface actives is 3-7:3-7.
As the preferred of above-mentioned technical proposal, in the step (2), the bamboo fibre of surface active and the quality of aniline monomer
Than being 1:1-4, the content of the bamboo fibre of surface active in solution A is 0.15-0.25g/ml.
As the preferred of above-mentioned technical proposal, in the step (2), in ammonium persulfate and solution A aniline monomer mole
Than being 1.2.
As the preferred of above-mentioned technical proposal, in the step (3), the stainless steel fibre of model 304 of stainless steel fibre,
The preprocess method of stainless steel fibre is：304 stainless steel fibre phosphatization silica sand paper are polished, through acetone, isopropyl acetone or first
Alcohol and deionized water are cleaned, nitrogen drying, standby.
As the preferred of above-mentioned technical proposal, in the step (3), in the electrolyte of the mixture of perchloric acid and ethylene glycol
The volume ratio of perchloric acid and ethylene glycol is 1:9, wherein perchloric acid is that content is the perchloric acid of 8-15%, and ethylene glycol is for content
The ethylene glycol of 85-92%.
Compared with prior art, the invention has the advantages that：
(1) stainless steel fibre based on bamboo fibre doped polyaniline prepared by the present invention uses the stainless steel of chemical etching
Used as substrate, using ethylene glycol as main component, addition perchloric acid improves electrolysis to the electrolyte that chemical etching is used to fiber
The electric conductivity of liquid, obtains dot matrix type stainless steel fibre, to having in water by the ratio, voltage and the polarization time that adjust electrolyte
The absorption property of machine thing especially PAHs is good, and environment will not be polluted in adsorption process, can be effectively improved water quality, reduces
Pollution.
(2) stainless steel fibre based on bamboo fibre doped polyaniline prepared by the present invention is made using bamboo fibre doped polyaniline
It is film, bamboo fibre doped polyaniline improves bamboo fibre surface reactive group using ultraviolet radiation or plasma-activated treatment
The activity of group, then by various sizes of bamboo fibre doped polyaniline, is easy to play conductive polyaniline shell and dielectric
Bamboo fibre stratum nucleare between cooperative effect, improve film to shielding electromagnetic waves ability, and film is homogeneous is attached to a little
Formation stainless steel fibre surface, neither influences stainless steel lattice structure, and poly- in the doping of stainless steel fibre surface attachment bamboo fibre
Aniline film, simple and fast is effective.
(3) the stainless steel fibre preparation method based on bamboo fibre doped polyaniline prepared by the present invention is simple, controllability
By force, the stainless steel fibre of preparation has lattice structure, and surface simultaneously covers bamboo fibre doped polyaniline film, assigns stainless steel fibre
Excellent adsorptivity, capability of electromagnetic shielding and corrosion resistance, improve the application field of stainless steel fibre.
Specific embodiment
Describe the present invention in detail below in conjunction with specific embodiment, herein illustrative examples of the invention and explanation
It is for explaining the present invention but not as a limitation of the invention.
Embodiment 1：
(1) using sulfuric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two parts, it is standby.
(2) bamboo fibre by bamboo fibre after oxygen gas plasma activation process 90min obtains surface active, by aniline
Monomer is mixed with the bamboo fibre after surface active, after standing 30min, is added into a copy of it doping acid solution, is designated as
Bamboo fibre after solution A, wherein surface active weighs the matter of the bamboo fibre of 40 mesh surface actives and the bamboo fibre of 80 mesh surface actives
Amount is than being 3:7, the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:2, the bamboo fibre of surface active is in solution A
Content is 0.2g/ml.
(3) oxidant ammonium persulfate is dissolved in another doping acid solution, is designated as solution B, wherein ammonium persulfate with it is molten
The mol ratio of aniline monomer is 1.2 in liquid A.
(4) it is cooled to 0 DEG C after above-mentioned solution A and solution B stirring respectively, it is stand-by.
(5) 304 stainless steel fibre phosphatization silica sand paper are polished, it is clear through acetone, isopropyl acetone or methyl alcohol and deionized water
Wash, nitrogen drying is standby, wherein the component of stainless steel fibre, by weight percentage, including：C 0.08%, Si 1%, Mn
2%, P 0.045%, S 0.03%, Ni 9.2%, Cr 18.8%, remaining is iron.
(6) it is 1 by volume ratio:The mixture of the perchloric acid of the 8% of 9 and 85% ethylene glycol as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to electrode pair stainless steel fibre：Center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, the stainless steel fibre positive pole that switches on power is etched, and under 25V voltages, reacts 50s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed at room temperature in hydrofluoric acid and corrodes, and is subsequently placed in nitrogen atmosphere
Under dry 3.5h, obtain the stainless steel fibre that lattice structure is contained on surface.
(7) solution B is stirred into 30min, insertion surface contains the stainless steel fibre of lattice structure, is slowly added dropwise solution A,
Oxidative polymerization 4h at 0 DEG C, after completion of the reaction, stainless steel fibre is taken out, with deionized water and sewage ethanol cyclic washing
To filtrate water white transparency and neutrality is presented, drying to obtain is based on the stainless steel fibre of bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 2：
(1) using the one kind in hydrochloric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two
Part, it is standby.
(2) bamboo fibre by bamboo fibre after ultraviolet irradiation activation process 120min obtains surface active, by aniline list
Body is mixed with the bamboo fibre after surface active, after standing 30min, is added into a copy of it doping acid solution, is designated as molten
Bamboo fibre after liquid A, wherein surface active weighs the quality of the bamboo fibre of 40 mesh surface actives and the bamboo fibre of 80 mesh surface actives
Than being 4:5, the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:4, bamboo fibre containing in solution A of surface active
It is 0.15g/ml to measure.
(3) oxidant ammonium persulfate is dissolved in another doping acid solution, is designated as solution B, wherein ammonium persulfate with it is molten
The mol ratio of aniline monomer is 1.2 in liquid A.
(4) it is cooled to 0 DEG C after above-mentioned solution A and solution B stirring respectively, it is stand-by.
(5) 304 stainless steel fibre phosphatization silica sand paper are polished, it is clear through acetone, isopropyl acetone or methyl alcohol and deionized water
Wash, nitrogen drying is standby, wherein the component of stainless steel fibre, by weight percentage, including：C 0.07%, Si 1.1%,
Mn 1.8%, P 0.05%, S 0.02%, Ni 10%, Cr 18%, remaining is iron.
(6) it is 1 by volume ratio:The mixture of the perchloric acid of the 8% of 9 and 92% ethylene glycol as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to electrode pair stainless steel fibre：Center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, the stainless steel fibre positive pole that switches on power is etched, and under 20V voltages, reacts 60s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed at room temperature in hydrofluoric acid and corrodes, and is subsequently placed in nitrogen atmosphere
Under dry 4.5h, obtain the stainless steel fibre that lattice structure is contained on surface.
(7) solution B is stirred into 30min, insertion surface contains the stainless steel fibre of lattice structure, is slowly added dropwise solution A,
Oxidative polymerization 1h at 0 DEG C, after completion of the reaction, stainless steel fibre is taken out, with deionized water and sewage ethanol cyclic washing
To filtrate water white transparency and neutrality is presented, drying to obtain is based on the stainless steel fibre of bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 3：
(1) using the one kind in phosphoric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two
Part, it is standby.
(2) bamboo fibre by bamboo fibre after oxygen gas plasma activation process 60min obtains surface active, by aniline
Monomer is mixed with the bamboo fibre after surface active, after standing 30min, is added into a copy of it doping acid solution, is designated as
Bamboo fibre after solution A, wherein surface active weighs the matter of the bamboo fibre of 40 mesh surface actives and the bamboo fibre of 80 mesh surface actives
Amount is than being 5:6, the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:1, the bamboo fibre of surface active is in solution A
Content is 0.25g/ml.
(3) oxidant ammonium persulfate is dissolved in another doping acid solution, is designated as solution B, wherein ammonium persulfate with it is molten
The mol ratio of aniline monomer is 1.2 in liquid A.
(4) it is cooled to 0 DEG C after above-mentioned solution A and solution B stirring respectively, it is stand-by.
(5) 304 stainless steel fibre phosphatization silica sand paper are polished, it is clear through acetone, isopropyl acetone or methyl alcohol and deionized water
Wash, nitrogen drying is standby, wherein the component of stainless steel fibre, by weight percentage, including：C 0.09%, Si 0.9%,
Mn 2.2%, P 0.04%, S 0.05%, Ni 8%, Cr 20%, remaining is iron.
(6) it is 1 by volume ratio:The mixture of the perchloric acid of the 15% of 9 and 85% ethylene glycol as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to electrode pair stainless steel fibre：Center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, the stainless steel fibre positive pole that switches on power is etched, and under 30V voltages, reacts 40s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed at room temperature in hydrofluoric acid and corrodes, and is subsequently placed in nitrogen atmosphere
Under dry 4h, obtain the stainless steel fibre that lattice structure is contained on surface.
(7) solution B is stirred into 30min, insertion surface contains the stainless steel fibre of lattice structure, is slowly added dropwise solution A,
Oxidative polymerization 12h at 0 DEG C, after completion of the reaction, stainless steel fibre is taken out, with deionized water and sewage ethanol cyclic washing
To filtrate water white transparency and neutrality is presented, drying to obtain is based on the stainless steel fibre of bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 4：
(1) using a kind of as raw material in DBSA, the doping acid solution 100mL of 1mol/L is configured, by it
Uniformly it is divided into two parts, it is standby.
(2) bamboo fibre by bamboo fibre after ultraviolet irradiation activation process 30min obtains surface active, by aniline monomer
Mixed with the bamboo fibre after surface active, after standing 30min, be added into a copy of it doping acid solution, be designated as solution
Bamboo fibre after A, wherein surface active weighs the mass ratio of the bamboo fibre of 40 mesh surface actives and the bamboo fibre of 80 mesh surface actives
It is 7:3, the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:3, the content of the bamboo fibre of surface active in solution A
It is 0.15g/ml.
(3) oxidant ammonium persulfate is dissolved in another doping acid solution, is designated as solution B, wherein ammonium persulfate with it is molten
The mol ratio of aniline monomer is 1.2 in liquid A.
(4) it is cooled to 0 DEG C after above-mentioned solution A and solution B stirring respectively, it is stand-by.
(5) 304 stainless steel fibre phosphatization silica sand paper are polished, it is clear through acetone, isopropyl acetone or methyl alcohol and deionized water
Wash, nitrogen drying is standby, wherein the component of stainless steel fibre, by weight percentage, including：C 0.09%, Si 0.9%,
Mn 2.2%, P 0.04%, S 0.05%, Ni 8%, Cr 20%, remaining is iron.
(6) it is 1 by volume ratio:The mixture of the perchloric acid of the 15% of 9 and 85% ethylene glycol as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to electrode pair stainless steel fibre：Center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, the stainless steel fibre positive pole that switches on power is etched, and under 30V voltages, reacts 40s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed at room temperature in hydrofluoric acid and corrodes, and is subsequently placed in nitrogen atmosphere
Under dry 3.5-4.5h, obtain the stainless steel fibre that lattice structure is contained on surface.
(7) solution B is stirred into 30min, insertion surface contains the stainless steel fibre of lattice structure, is slowly added dropwise solution A,
Oxidative polymerization 8h at 0 DEG C, after completion of the reaction, stainless steel fibre is taken out, with deionized water and sewage ethanol cyclic washing
To filtrate water white transparency and neutrality is presented, drying to obtain is based on the stainless steel fibre of bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 5：
(1) using the one kind in sulfuric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two
Part, it is standby.
(2) bamboo fibre by bamboo fibre after oxygen gas plasma activation process 30min obtains surface active, by aniline
Monomer is mixed with the bamboo fibre after surface active, after standing 30min, is added into a copy of it doping acid solution, is designated as
Bamboo fibre after solution A, wherein surface active weighs the matter of the bamboo fibre of 40 mesh surface actives and the bamboo fibre of 80 mesh surface actives
Amount is than being 3:7, the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:4, the bamboo fibre of surface active is in solution A
Content is 0.2g/ml.
(3) oxidant ammonium persulfate is dissolved in another doping acid solution, is designated as solution B, wherein ammonium persulfate with it is molten
The mol ratio of aniline monomer is 1.2 in liquid A.
(4) it is cooled to 0 DEG C after above-mentioned solution A and solution B stirring respectively, it is stand-by.
(5) 304 stainless steel fibre phosphatization silica sand paper are polished, is cleaned through acetone and deionized water, nitrogen drying is standby
With.
(6) it is 1 by volume ratio:The mixture of the perchloric acid of the 10% of 9 and 90% ethylene glycol as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to electrode pair stainless steel fibre：Center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, the stainless steel fibre positive pole that switches on power is etched, and under 20V voltages, reacts 60s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed at room temperature in hydrofluoric acid and corrodes, and is subsequently placed in nitrogen atmosphere
Under dry 4.5h, obtain the stainless steel fibre that lattice structure is contained on surface, wherein the component of stainless steel fibre, by weight percentage
Meter, including：C 0.07%, Si 0.85%, Mn 2.2%, P 0.05%, S 0.02%, Ni 10%, Cr 18%, remaining is
Iron.
(7) solution B is stirred into 30min, insertion surface contains the stainless steel fibre of lattice structure, is slowly added dropwise solution A,
Oxidative polymerization 6h at 0 DEG C, after completion of the reaction, stainless steel fibre is taken out, with deionized water and sewage ethanol cyclic washing
To filtrate water white transparency and neutrality is presented, drying to obtain is based on the stainless steel fibre of bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 6：
(1) using the one kind in hydrochloric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two
Part, it is standby.
(2) bamboo fibre by bamboo fibre after oxygen gas plasma activation process 100min obtains surface active, by benzene
Amine monomers are mixed with the bamboo fibre after surface active, after standing 30min, are added into a copy of it doping acid solution, note
It is solution A, wherein the bamboo fibre after surface active weighs the bamboo fibre of 40 mesh surface actives and the bamboo fibre of 80 mesh surface actives
Mass ratio is 7:3, the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:4, the bamboo fibre of surface active is in solution A
Content be 0.2g/ml.
(3) oxidant ammonium persulfate is dissolved in another doping acid solution, is designated as solution B, wherein ammonium persulfate with it is molten
The mol ratio of aniline monomer is 1.2 in liquid A.
(4) it is cooled to 0 DEG C after above-mentioned solution A and solution B stirring respectively, it is stand-by.
(5) 304 stainless steel fibre phosphatization silica sand paper are polished, is cleaned through isopropyl acetone and deionized water, nitrogen drying is standby
With.
(6) it is 1 by volume ratio:The mixture of the perchloric acid of the 11% of 9 and 90% ethylene glycol as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to electrode pair stainless steel fibre：Center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, the stainless steel fibre positive pole that switches on power is etched, and under 30V voltages, reacts 45s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed at room temperature in hydrofluoric acid and corrodes, and is subsequently placed in nitrogen atmosphere
Under dry 4h, obtain the stainless steel fibre that lattice structure is contained on surface, wherein the component of stainless steel fibre, by weight percentage
Meter, including：C 0.08%, Si 0.9%, Mn 1.9%, P 0.05%, S 0.05%, Ni 8%, Cr 20%, remaining is iron.
(7) solution B is stirred into 30min, insertion surface contains the stainless steel fibre of lattice structure, is slowly added dropwise solution A,
Oxidative polymerization 10h at 0 DEG C, after completion of the reaction, stainless steel fibre is taken out, with deionized water and sewage ethanol cyclic washing
To filtrate water white transparency and neutrality is presented, drying to obtain is based on the stainless steel fibre of bamboo fibre doped polyaniline at 40 DEG C.
After testing, adsorptivity of the stainless steel fibre based on bamboo fibre doped polyaniline that prepared by embodiment 1-6 to biphenyl
The result of energy, the electromagnetic wave shielding performance to 8.2-12.4Ghz and antiseptic property is as follows：
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| To the recovery of standard addition (%) of biphenyl | 98.5 | 95.1 | 96.2 | 97.4 | 97.1 | 96.9 |
| Electromagnet shield effect (dB) | 48 | 42 | 36 | 45 | 43 | 39 |
| Anti-corrosion potential raising value (mV) | 70 | 66 | 68 | 71 | 69 | 68 |
As seen from the above table, the stainless steel fibre based on bamboo fibre doped polyaniline that prepared by the present invention has good absorption
Performance, capability of electromagnetic shielding and antiseptic property.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should be covered by claim of the invention.
Claims (10)
1. a kind of stainless steel fibre based on bamboo fibre doped polyaniline, it is characterised in that：It is described based on bamboo fibre adulterate polyphenyl
The stainless steel fibre of amine includes the film of stainless steel fibre and bamboo fibre doped polyaniline, the bamboo fibre doped polyaniline it is thin
Film is core-shell structure, and the stratum nucleare of the core-shell structure is bamboo fibre, and the shell is polyaniline, and the stainless steel fibre surface contains
There is lattice structure.
2. a kind of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 1, it is characterised in that：It is described
The film of bamboo fibre doped polyaniline is prepared from using in situ chemical oxidative polymerization method, and the stainless steel fibre is by electrification
Corrosion is learned to be prepared from.
3. a kind of preparation method of the stainless steel fibre based on bamboo fibre doped polyaniline, it is characterised in that comprise the following steps：
(1) using a kind of as raw material in sulfuric acid, hydrochloric acid, phosphoric acid and DBSA, doping acid solution is configured, its is equal
It is even to be divided into two parts, it is standby；
(2) weigh appropriate aniline monomer to be mixed with the bamboo fibre after surface active, after standing 30min, be added into step
(1) in a copy of it doping acid solution for preparing, it is designated as solution A；Weigh appropriate oxidant ammonium persulfate and be dissolved in step (1) preparation
Another doping acid solution in, be designated as solution B；0 DEG C is cooled to after above-mentioned solution A and solution B are stirred respectively, is treated
With；
(3) it is stainless to electrode pair using four electrode electro Chemical cell platinum using the mixture of perchloric acid and ethylene glycol as electrolyte
Steel fibre carries out electrochemical treatments：Center is stainless steel fibre, and periphery is three platinum electrodes in stable triangle structure, stainless
The steel fibre positive pole that switches on power is etched, and under 20-30V voltages, reacts 40-60s, and stainless steel fibre is taken out, and uses deionization
After water is gently rinsed, it is placed at room temperature in hydrofluoric acid and corrodes, be subsequently placed under nitrogen atmosphere and dry 3.5-4.5h, obtains surface
Stainless steel fibre containing lattice structure；
(4) solution B for preparing step (2) stirs 30min, and the stainless of lattice structure is contained on surface prepared by inserting step (3)
Steel fibre, is added dropwise solution A prepared by step (2), and the oxidative polymerization 1-12h at 0 DEG C is after completion of the reaction, fine by stainless steel
Dimension is taken out, washing, is dried at 40 DEG C, that is, obtain the stainless steel fibre based on bamboo fibre doped polyaniline.
4. the preparation method of a kind of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 3, it is special
Levy and be：In the step (1), the concentration of the acid solution that adulterates is 1mol/L.
5. the preparation method of a kind of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 3, it is special
Levy and be：In the step (2), the preparation method of the bamboo fibre after surface active is：By bamboo fibre by ultraviolet irradiation or
Oxygen gas plasma activation process 30-120min.
6. the preparation method of a kind of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 3, it is special
Levy and be：In the step (2), the bamboo fibre after surface active contains two kinds of sizes of 40 mesh and 80 mesh, 40 mesh surface actives
The mass ratio of the bamboo fibre of bamboo fibre and 80 mesh surface actives is 3-7:3-7.
7. the preparation method of a kind of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 3, it is special
Levy and be：In the step (2), the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:1-4, the bamboo of surface active is fine
It is 0.15-0.25g/ml to tie up the content in solution A.
8. the preparation method of a kind of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 3, it is special
Levy and be：In the step (2), ammonium persulfate is 1.2 with the mol ratio of aniline monomer in solution A.
9. the preparation method of a kind of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 3, it is special
Levy and be：In the step (3), the stainless steel fibre of model 304 of stainless steel fibre, the preprocess method of stainless steel fibre
For：304 stainless steel fibre phosphatization silica sand paper are polished, is cleaned through acetone, isopropyl acetone or methyl alcohol and deionized water, nitrogen blows
It is dry, it is standby.
10. the preparation method of a kind of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 3, it is special
Levy and be：In the step (3), the volume ratio of perchloric acid and ethylene glycol is in the electrolyte of the mixture of perchloric acid and ethylene glycol
1:9, wherein perchloric acid is that content is the perchloric acid of 8-15%, and ethylene glycol is that content is the ethylene glycol of 85-92%.
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| CN1186091A (en) * | 1996-12-25 | 1998-07-01 | 中国科学院长春应用化学研究所 | Preparation of mixed polyaniline aqueous solution and dispersant liquid |
| CN1733820A (en) * | 2005-08-26 | 2006-02-15 | 重庆大学 | Preparation method of composite acids doped with conductive polyaniline |
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| CN1186091A (en) * | 1996-12-25 | 1998-07-01 | 中国科学院长春应用化学研究所 | Preparation of mixed polyaniline aqueous solution and dispersant liquid |
| CN1733820A (en) * | 2005-08-26 | 2006-02-15 | 重庆大学 | Preparation method of composite acids doped with conductive polyaniline |
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