CN106835707B - A kind of stainless steel fibre and preparation method thereof based on bamboo fibre doped polyaniline - Google Patents
A kind of stainless steel fibre and preparation method thereof based on bamboo fibre doped polyaniline Download PDFInfo
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Abstract
The present invention provides a kind of stainless steel fibre and preparation method thereof based on bamboo fibre doped polyaniline, contain the film of the bamboo fibre doped polyaniline of lattice structure stainless steel fibre and core-shell structure including surface, it is dissolved in doping acid solution the preparation method comprises the following steps: the bamboo fibre after aniline monomer and surface active is mixed, forms solution A；It dissolves ammonium persulfate into another doping acid solution, is denoted as solution B；The two is cooled to 0 DEG C after mixing evenly respectively, for use；Using the mixture of perchloric acid and ethylene glycol as electrolyte, electrochemical treatments etching is carried out to stainless steel fibre to electrode using four electrode electro Chemical cell platinum, stainless steel fibre is taken out and is rinsed, is placed in hydrofluoric acid and corrodes, nitrogen is dry；Solution B is stirred into 30min, is inserted into stainless steel fibre, solution A is added dropwise, the oxidative polymerization at 0 DEG C after completion of the reaction takes out stainless steel fibre, washs drying to get the stainless steel fibre based on bamboo fibre doped polyaniline is arrived.
Description
Technical field
The invention belongs to conductive polymer material technical fields, and in particular to it is a kind of based on bamboo fibre doped polyaniline not
Become rusty steel fibre and preparation method thereof.
Background technique
Conducting polymer is also referred to as conducting polymer, has special molecular structure and excellent physical and chemical performance, in electricity
Before the fields such as container, sensor, fuel cell, anticorrosive metal and the degradation of organic matter conductor photocatalysis have a wide range of applications
Scape.
Conducting polymer can be divided 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 type 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 contain aromatic monocyclic, polycyclic and heterocycle mostly, mainly have polyaniline,
Polypyrrole and polythiophene etc. are the emphasis of conductive polymer material 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, are combined by dispersion, lamination, overlay coating etc., have
Have metallic conductivity, conductive coating, conductive rubber, anti-static material and in terms of have important application.
As research discovery polyaniline can make the current potential of stainless steel fibre maintain stable passivation region domain, it is at anode
Guard mode, polyaniline are more and more in the application and research of anti-corrosion of metal engineering field.Chinese patent CN 104451826A is public
A kind of stainless steel surface polyaniline-polyvinylpyrrolidone composite membrane opened and preparation method thereof will contain aniline and polyethylene
The aqueous sulfuric acid of pyrrolidones is electrolyte, using cyclic voltammetry in one strata aniline of stainless steel surface electrochemical deposition-
Polyvinylpyrrolidone composite membrane, to improve the corrosion protection effect of stainless steel base.Chinese patent CN 102876037B is disclosed
Electrochemical in-situ polymerization prepare metal/polyaniline/composite plastic film method, be by the stainless steel plate that cellular plastic film wraps up
Anode obtains polyaniline/Plastic conductive composite membrane through electrochemical deposition using aniline-acid solution as electrolyte, by polyaniline/
Plastic conductive composite membrane is cathode, and silver ion solution is electrolyte, and it is multiple to obtain metal/polyaniline/plastics through electrochemical deposition
Film is closed, finally under inert gas or vacuum environment, heated heat preservation obtains conductive composite film.It can by the above-mentioned prior art
Know, currently based on polyaniline the arrangement of stainless steel surface be all it is simple polymerize using aniline monomer in stainless steel surface, gather
Aniline is very limited to the functional performance raising of stainless steel, and therefore, the modification for stainless steel fibre and polyaniline film will be advantageous
In assigning, stainless steel material is more functional.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of stainless steel fibre based on bamboo fibre doped polyaniline and its
Preparation method prepares the film to form the bamboo fibre doped polyaniline of core-shell structure 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 stainless steel
The adsorption capacity, electromagnetic shielding performance and Corrosion Protection of stainless steel fibre are improved in the surface of fiber.
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 are bamboo fibre, and the shell is polyaniline, and dot matrix knot is contained on the stainless steel fibre surface
Structure.
As a preferred embodiment of the above technical solution, the film of the bamboo fibre doped polyaniline is poly- using in situ chemical oxidation
Legal to be prepared, the stainless steel fibre is prepared by electrochemical corrosion.
The present invention also provides a kind of preparation methods of stainless steel fibre based on bamboo fibre doped polyaniline, including following step
It is rapid:
(1) using one of sulfuric acid, hydrochloric acid, phosphoric acid and dodecyl benzene sulfonic acid as raw material, configuration doping acid solution will
It is uniformly divided into two parts, spare；
(2) it weighs suitable aniline monomer to mix with the bamboo fibre after surface active, after standing 30min, be added into
In a copy of it doping acid solution of step (1) preparation, it is denoted as solution A；It weighs appropriate oxidant ammonium persulfate and is dissolved in step (1)
In another doping acid solution of preparation, it is denoted as solution B；Above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively,
For use；
(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,
Stainless steel fibre powers on anode and is etched, and under 20-30V voltage, reacts 40-60s, stainless steel fibre is taken out, is spent
It after ionized water gently rinses, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed under nitrogen atmosphere dry 3.5-4.5h, obtain
Contain the stainless steel fibre of lattice structure in surface；
(4) solution B of step (2) preparation is stirred into 30min, lattice structure is contained on the surface of inserting step (3) preparation
Stainless steel fibre, the solution A of a dropping step (2) preparation, 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 to get the stainless steel fibre based on bamboo fibre doped polyaniline is arrived.
As a preferred embodiment of the above technical solution, in the step (1), the concentration for adulterating acid solution is 1mol/L.
As a preferred embodiment of the above technical solution, in the step (2), bamboo fibre after surface active the preparation method comprises the following steps:
Bamboo fibre is activated 30-120min by ultraviolet irradiation or oxygen gas plasma.
As a preferred embodiment of the above technical solution, 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 a preferred embodiment of the above technical solution, in the step (2), the bamboo fibre of surface active and the quality of aniline monomer
Than for 1:1-4, content of the bamboo fibre of surface active in solution A is 0.15-0.25g/ml.
As a preferred embodiment of the above technical solution, in the step (2), mole of aniline monomer in ammonium persulfate and solution A
Than being 1.2.
As a preferred embodiment of the above technical solution, in the step (3), 304 stainless steel fibre of model of stainless steel fibre,
The preprocess method of stainless steel fibre are as follows: polish 304 stainless steel fibres with phosphatization silicon sand paper, through acetone, isopropyl acetone or first
Pure and mild deionized water cleaning, is dried with nitrogen, spare.
As a preferred embodiment of the above technical solution, 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, and wherein perchloric acid is the perchloric acid that content is 8-15%, and ethylene glycol is that content is
The ethylene glycol of 85-92%.
Compared with prior art, the invention has the following advantages:
(1) stainless steel fibre prepared by the present invention based on bamboo fibre doped polyaniline uses the stainless steel of chemical etching
As substrate, the electrolyte that chemical etching uses, as main component, is added perchloric acid and improves electrolysis fiber using ethylene glycol
The electric conductivity of liquid, ratio, voltage and polarization time by adjusting electrolyte obtain dot matrix type stainless steel fibre, to having in water
The machine object especially absorption property of PAHs is good, not can cause environmental pollution in adsorption process, can be effectively improved water quality, reduces
Pollution.
(2) stainless steel fibre prepared by the present invention based on bamboo fibre doped polyaniline is made using bamboo fibre doped polyaniline
For film, bamboo fibre doped polyaniline improves bamboo fibre surface reactive group using ultraviolet radiation or plasma-activated processing
The activity of group, then by various sizes of bamboo fibre doped polyaniline, convenient for playing conductive polyaniline shell and dielectric
Bamboo fibre stratum nucleare between synergistic effect, improve film to shielding electromagnetic waves ability, and film is uniform is attached to a little
Formation stainless steel fibre surface, neither influence stainless steel lattice structure, but it is poly- in stainless steel fibre surface attachment bamboo fibre doping
Aniline film, it is simple and fast effective.
(3) the stainless steel fibre preparation method prepared by the present invention based on bamboo fibre doped polyaniline 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, electromagnetic shielding performance and corrosion resistance improve the application field of stainless steel fibre.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail, herein illustrative examples and explanation of the invention
For explaining the present invention, but it is 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 spare.
(2) bamboo fibre is activated the bamboo fibre after 90min obtains surface active by oxygen gas plasma, 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 denoted as
Solution A, wherein the bamboo fibre after 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, and the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:2, and the bamboo fibre of surface active is in solution A
Content is 0.2g/ml.
(3) by oxidant ammonium persulfate be dissolved in another doping acid solution in, be denoted as solution B, wherein ammonium persulfate with it is molten
The molar ratio of aniline monomer is 1.2 in liquid A.
(4) above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively, for use.
(5) 304 stainless steel fibres are polished with phosphatization silicon sand paper, it is clear through acetone, isopropyl acetone or methanol and deionized water
It washes, is dried with nitrogen, spare, the wherein component of stainless steel fibre, by weight percentage, comprising: C 0.08%, Si 1%, Mn
2%, P 0.045%, S 0.03%, Ni 9.2%, Cr 18.8%, remaining is iron.
(6) using volume ratio be 1:9 8% perchloric acid and 85% ethylene glycol mixture as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to stainless steel fibre to electrode: center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, stainless steel fibre powers on anode and is etched, and under 25V voltage, reacts 50s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed in nitrogen atmosphere
Lower dry 3.5h obtains 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, solution A is slowly added dropwise,
Oxidative polymerization 4h after completion of the reaction takes out stainless steel fibre at 0 DEG C, is washed repeatedly with deionized water and sewage ethyl alcohol
It is colorless and transparent to filtrate and neutrality is presented, stainless steel fibre of the drying to obtain based on bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 2:
(1) using one of hydrochloric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two
Part, it is spare.
(2) bamboo fibre is activated the bamboo fibre after 120min obtains surface active by ultraviolet irradiation, 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 denoted as molten
Liquid A, wherein the bamboo fibre after surface active weighs the quality of the bamboo fibre of 40 mesh surface actives and the bamboo fibre of 80 mesh surface actives
Than for 4:5, the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:4, the bamboo fibre of surface active containing in solution A
Amount is 0.15g/ml.
(3) by oxidant ammonium persulfate be dissolved in another doping acid solution in, be denoted as solution B, wherein ammonium persulfate with it is molten
The molar ratio of aniline monomer is 1.2 in liquid A.
(4) above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively, for use.
(5) 304 stainless steel fibres are polished with phosphatization silicon sand paper, it is clear through acetone, isopropyl acetone or methanol and deionized water
It washes, is dried with nitrogen, spare, the wherein component of stainless steel fibre, by weight percentage, comprising: C 0.07%, Si 1.1%,
Mn 1.8%, P 0.05%, S 0.02%, Ni 10%, Cr 18%, remaining is iron.
(6) using volume ratio be 1:9 8% perchloric acid and 92% ethylene glycol mixture as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to stainless steel fibre to electrode: center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, stainless steel fibre powers on anode and is etched, and under 20V voltage, reacts 60s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed in nitrogen atmosphere
Lower dry 4.5h obtains 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, solution A is slowly added dropwise,
Oxidative polymerization 1h after completion of the reaction takes out stainless steel fibre at 0 DEG C, is washed repeatedly with deionized water and sewage ethyl alcohol
It is colorless and transparent to filtrate and neutrality is presented, stainless steel fibre of the drying to obtain based on bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 3:
(1) using one of phosphoric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two
Part, it is spare.
(2) bamboo fibre is activated the bamboo fibre after 60min obtains surface active by oxygen gas plasma, 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 denoted as
Solution A, wherein the bamboo fibre after 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, and the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:1, and the bamboo fibre of surface active is in solution A
Content is 0.25g/ml.
(3) by oxidant ammonium persulfate be dissolved in another doping acid solution in, be denoted as solution B, wherein ammonium persulfate with it is molten
The molar ratio of aniline monomer is 1.2 in liquid A.
(4) above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively, for use.
(5) 304 stainless steel fibres are polished with phosphatization silicon sand paper, it is clear through acetone, isopropyl acetone or methanol and deionized water
It washes, is dried with nitrogen, spare, the wherein component of stainless steel fibre, by weight percentage, comprising: C 0.09%, Si 0.9%,
Mn 2.2%, P 0.04%, S 0.05%, Ni 8%, Cr 20%, remaining is iron.
(6) using volume ratio be 1:9 15% perchloric acid and 85% ethylene glycol mixture as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to stainless steel fibre to electrode: center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, stainless steel fibre powers on anode and is etched, and under 30V voltage, reacts 40s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed in nitrogen atmosphere
Lower dry 4h obtains 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, solution A is slowly added dropwise,
Oxidative polymerization 12h after completion of the reaction takes out stainless steel fibre at 0 DEG C, is washed repeatedly with deionized water and sewage ethyl alcohol
It is colorless and transparent to filtrate and neutrality is presented, stainless steel fibre of the drying to obtain based on bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 4:
(1) using one of dodecyl benzene sulfonic acid as raw material, the doping acid solution 100mL of 1mol/L is configured, by it
Uniformly it is divided into two parts, it is spare.
(2) bamboo fibre is activated the bamboo fibre after 30min obtains surface active by ultraviolet irradiation, by aniline monomer
It is mixed with the bamboo fibre after surface active, after standing 30min, is added into a copy of it doping acid solution, is denoted as solution
A, wherein the bamboo fibre after surface active weighs the mass ratio of the bamboo fibre of 40 mesh surface actives and the bamboo fibre of 80 mesh surface actives
For 7:3, the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:3, content of the bamboo fibre of surface active in solution A
For 0.15g/ml.
(3) by oxidant ammonium persulfate be dissolved in another doping acid solution in, be denoted as solution B, wherein ammonium persulfate with it is molten
The molar ratio of aniline monomer is 1.2 in liquid A.
(4) above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively, for use.
(5) 304 stainless steel fibres are polished with phosphatization silicon sand paper, it is clear through acetone, isopropyl acetone or methanol and deionized water
It washes, is dried with nitrogen, spare, the wherein component of stainless steel fibre, by weight percentage, comprising: C 0.09%, Si 0.9%,
Mn 2.2%, P 0.04%, S 0.05%, Ni 8%, Cr 20%, remaining is iron.
(6) using volume ratio be 1:9 15% perchloric acid and 85% ethylene glycol mixture as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to stainless steel fibre to electrode: center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, stainless steel fibre powers on anode and is etched, and under 30V voltage, reacts 40s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed in nitrogen atmosphere
Lower dry 3.5-4.5h obtains 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, solution A is slowly added dropwise,
Oxidative polymerization 8h after completion of the reaction takes out stainless steel fibre at 0 DEG C, is washed repeatedly with deionized water and sewage ethyl alcohol
It is colorless and transparent to filtrate and neutrality is presented, stainless steel fibre of the drying to obtain based on bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 5:
(1) using one of sulfuric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two
Part, it is spare.
(2) bamboo fibre is activated the bamboo fibre after 30min obtains surface active by oxygen gas plasma, 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 denoted as
Solution A, wherein the bamboo fibre after 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, and the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:4, and the bamboo fibre of surface active is in solution A
Content is 0.2g/ml.
(3) by oxidant ammonium persulfate be dissolved in another doping acid solution in, be denoted as solution B, wherein ammonium persulfate with it is molten
The molar ratio of aniline monomer is 1.2 in liquid A.
(4) above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively, for use.
(5) 304 stainless steel fibres are polished with phosphatization silicon sand paper, cleans, is dried with nitrogen through acetone and deionized water, it is standby
With.
(6) using volume ratio be 1:9 10% perchloric acid and 90% ethylene glycol mixture as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to stainless steel fibre to electrode: center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, stainless steel fibre powers on anode and is etched, and under 20V voltage, reacts 60s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed in nitrogen atmosphere
Lower dry 4.5h obtains the stainless steel fibre that lattice structure is contained on surface, wherein the component of stainless steel fibre, by weight percentage
Meter, comprising: 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, solution A is slowly added dropwise,
Oxidative polymerization 6h after completion of the reaction takes out stainless steel fibre at 0 DEG C, is washed repeatedly with deionized water and sewage ethyl alcohol
It is colorless and transparent to filtrate and neutrality is presented, stainless steel fibre of the drying to obtain based on bamboo fibre doped polyaniline at 40 DEG C.
Embodiment 6:
(1) using one of hydrochloric acid as raw material, the doping acid solution 100mL of 1mol/L is configured, it is uniformly divided into two
Part, it is spare.
(2) bamboo fibre is activated the bamboo fibre after 100min obtains surface active by oxygen gas plasma, 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
For 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, and the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:4, and the bamboo fibre of surface active is in solution A
Content be 0.2g/ml.
(3) by oxidant ammonium persulfate be dissolved in another doping acid solution in, be denoted as solution B, wherein ammonium persulfate with it is molten
The molar ratio of aniline monomer is 1.2 in liquid A.
(4) above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively, for use.
(5) 304 stainless steel fibres are polished with phosphatization silicon sand paper, cleans, is dried with nitrogen through isopropyl acetone and deionized water, it is standby
With.
(6) using volume ratio be 1:9 11% perchloric acid and 90% ethylene glycol mixture as electrolyte, using four
Electrode electro Chemical cell platinum carries out electrochemical treatments to stainless steel fibre to electrode: center is stainless steel fibre, and periphery is in steady
Determine three platinum electrodes of triangular structure, stainless steel fibre powers on anode and is etched, and under 30V voltage, reacts 45s, will
Stainless steel fibre takes out, and after gently being rinsed with deionized water, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed in nitrogen atmosphere
Lower dry 4h obtains the stainless steel fibre that lattice structure is contained on surface, wherein the component of stainless steel fibre, by weight percentage
Meter, comprising: 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, solution A is slowly added dropwise,
Oxidative polymerization 10h after completion of the reaction takes out stainless steel fibre at 0 DEG C, is washed repeatedly with deionized water and sewage ethyl alcohol
It is colorless and transparent to filtrate and neutrality is presented, stainless steel fibre of the drying to obtain based on bamboo fibre doped polyaniline at 40 DEG C.
Through detecting, the stainless steel fibre based on bamboo fibre doped polyaniline of embodiment 1-6 preparation is to the adsorptivity of biphenyl
Can, it is as follows to the electromagnetic wave shielding performance of 8.2-12.4Ghz and the result of antiseptic property:
| 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 prepared by the present invention based on bamboo fibre doped polyaniline has good absorption
Performance, electromagnetic shielding performance and antiseptic property.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (9)
1. a kind of stainless steel fibre based on bamboo fibre doped polyaniline, it is characterised in that: described to adulterate polyphenyl based on bamboo fibre
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；
The preparation method of the stainless steel fibre based on bamboo fibre doped polyaniline, comprising the following steps:
(1) using one of sulfuric acid, hydrochloric acid, phosphoric acid and dodecyl benzene sulfonic acid as raw material, configuration doping acid solution, by it
It is even to be divided into two parts, it is spare；
(2) it weighs suitable aniline monomer to mix with the bamboo fibre after surface active, after standing 30min, is added into step
(1) in a copy of it doping acid solution prepared, it is denoted as solution A；It weighs appropriate oxidant ammonium persulfate and is dissolved in step (1) preparation
Another doping acid solution in, be denoted as solution B；Above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively, to
With；
(3) using the mixture of perchloric acid and ethylene glycol as electrolyte, using four electrode electro Chemical cell platinum to electrode to stainless
Steel fibre carries out electrochemical treatments: center is stainless steel fibre, and periphery is three platinum electrodes in stable triangle structure, stainless
Steel fibre powers on anode and is etched, and under 20-30V voltage, reacts 40-60s, stainless steel fibre is taken out, deionization is used
It after water gently rinses, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed under nitrogen atmosphere dry 3.5-4.5h, obtain surface
Stainless steel fibre containing lattice structure；
(4) solution B of step (2) preparation is stirred into 30min, the stainless of lattice structure is contained on the surface of inserting step (3) preparation
Steel fibre, the solution A of a dropping step (2) preparation, the oxidative polymerization 1-12h at 0 DEG C, after completion of the reaction, by stainless steel fibre
Dimension is taken out, washing, is dried at 40 DEG C to get the stainless steel fibre based on bamboo fibre doped polyaniline is arrived.
2. a kind of preparation method of the stainless steel fibre based on bamboo fibre doped polyaniline, which comprises the following steps:
(1) using one of sulfuric acid, hydrochloric acid, phosphoric acid and dodecyl benzene sulfonic acid as raw material, configuration doping acid solution, by it
It is even to be divided into two parts, it is spare；
(2) it weighs suitable aniline monomer to mix with the bamboo fibre after surface active, after standing 30min, is added into step
(1) in a copy of it doping acid solution prepared, it is denoted as solution A；It weighs appropriate oxidant ammonium persulfate and is dissolved in step (1) preparation
Another doping acid solution in, be denoted as solution B；Above-mentioned solution A and solution B are cooled to 0 DEG C after mixing evenly respectively, to
With；
(3) using the mixture of perchloric acid and ethylene glycol as electrolyte, using four electrode electro Chemical cell platinum to electrode to stainless
Steel fibre carries out electrochemical treatments: center is stainless steel fibre, and periphery is three platinum electrodes in stable triangle structure, stainless
Steel fibre powers on anode and is etched, and under 20-30V voltage, reacts 40-60s, stainless steel fibre is taken out, deionization is used
It after water gently rinses, is placed in hydrofluoric acid corrodes at room temperature, be subsequently placed under nitrogen atmosphere dry 3.5-4.5h, obtain surface
Stainless steel fibre containing lattice structure；
(4) solution B of step (2) preparation is stirred into 30min, the stainless of lattice structure is contained on the surface of inserting step (3) preparation
Steel fibre, the solution A of a dropping step (2) preparation, the oxidative polymerization 1-12h at 0 DEG C, after completion of the reaction, by stainless steel fibre
Dimension is taken out, washing, is dried at 40 DEG C to get the stainless steel fibre based on bamboo fibre doped polyaniline is arrived.
3. a kind of preparation method of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 2, special
Sign is: in the step (1), the concentration for adulterating acid solution is 1mol/L.
4. a kind of preparation method of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 2, special
Sign is: in the step (2), bamboo fibre after surface active the preparation method comprises the following steps: by bamboo fibre by ultraviolet irradiation or
Oxygen gas plasma is activated 30-120min.
5. a kind of preparation method of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 2, special
Sign is: 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.
6. a kind of preparation method of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 2, special
Sign is: in the step (2), the bamboo fibre of surface active and the mass ratio of aniline monomer are 1:1-4, and the bamboo of surface active is fine
Tieing up the content in solution A is 0.15-0.25g/mL.
7. a kind of preparation method of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 2, special
Sign is: in the step (2), the molar ratio of aniline monomer is 1.2 in ammonium persulfate and solution A.
8. a kind of preparation method of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 2, special
Sign is: in the step (3), 304 stainless steel fibre of model of stainless steel fibre, and the preprocess method of stainless steel fibre
Are as follows: 304 stainless steel fibres are polished with phosphatization silicon sand paper, are cleaned through acetone, isopropyl acetone or methanol and deionized water, nitrogen is blown
It is dry, it is spare.
9. a kind of preparation method of stainless steel fibre based on bamboo fibre doped polyaniline according to claim 2, special
Sign is: 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 the perchloric acid that content is 8-15%, and ethylene glycol is the ethylene glycol that content is 85-92%.
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