CN108376573B - A method of high shielding effect flexibility form film is prepared using nano-silver thread - Google Patents

A method of high shielding effect flexibility form film is prepared using nano-silver thread Download PDF

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Publication number
CN108376573B
CN108376573B CN201810167725.8A CN201810167725A CN108376573B CN 108376573 B CN108376573 B CN 108376573B CN 201810167725 A CN201810167725 A CN 201810167725A CN 108376573 B CN108376573 B CN 108376573B
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nano
parts
silver thread
thin film
shielding effect
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CN108376573A (en
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罗勇
竹文坤
姚卫棠
周建
王茜
雷佳
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Sichuan Shuhan Zhibo Technology Co ltd
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Southwest University of Science and Technology
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/16Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00Manufacture or treatment of nanostructures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/14Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports

Abstract

The invention discloses a kind of methods for preparing high shielding effect flexibility form film using nano-silver thread, comprising: (1) preparation of nano-silver thread;(2) assembling body thin film is prepared using Lang Gemiaoer-Buji trick;(3) assembling body thin film is modified;(4) modification assembling body thin film is immersed in modified graphene solution, adds condensing agent, reacts, it is washed, dry, obtain high shielding effect flexibility form film.Nano-silver thread prepared by the present invention is had excellent performance, electric conductivity, light transmittance and stability are greatly improved, high shielding effect flexible shielding form film is prepared using overlength nano-silver thread simultaneously, obtained film can be directly used for window fitting, and need not destroy window structure, easily realize low square resistance, shield effectiveness is preferable, light transmittance is high, high shielding effect, high flexibility.

Description

A method of high shielding effect flexibility form film is prepared using nano-silver thread
Technical field
The present invention relates to a kind of preparation methods of film, and in particular to a kind of to prepare high shielding effect flexibility view using nano-silver thread The method of window film.
Background technique
High shielding effect flexibility form film is most important for many photoelectric devices and component, liquid crystal flat panel display, etc. It is mostly used as electrode in the electronic devices such as ion display screen, touch-control plate, Organic Light Emitting Diode and solar battery.Together When, also it is widely used as antistatic coating and electromagnetic shielding material.The metal oxidation of the multi-purpose doping of general transparent conductive film Object is prepared, and most commonly used is tin indium oxide (ITO) conductive film, and the electric conductivity and translucency of ITO is excellent.So And the brittleness of ever-increasing preparation cost, indium tin oxide films and the high-temperature process in preparation process limit it Application in the following photoelectric device, especially flexible photoelectric device.In recent years, such as single-walled carbon nanotube, graphene, nano silver The new conductive material such as line continues to bring out out.Using above-mentioned conductive material prepare high shielding effect flexibility form film become be expected to replace For the material of indium tin oxide films.Wherein, nano-silver thread is a kind of ultra-thin metal wire of nanoscale, except having excellent leading for silver Electrically, due to nanometer size effect, nano-silver thread is weaker in visible light region absorption, has excellent translucency and bend resistance Property.Since nano-silver thread is a kind of direct band gap wide-band gap material, forbidden bandwidth reaches 3.37ev, in the transmission of visible light wave range Rate is very high, up to 90% or more, and raw material have it is from a wealth of sources, resourceful, nontoxic, pollution-free, environmental-friendly, in hydrogen etc. Stability is better than the advantages of indium tin oxide films form in gas ions.Therefore, nano-silver thread electrically conducting transparent form is considered as most It is possible that the form material of substitution tin indium oxide, the application of nano-silver thread electrically conducting transparent form will bring significant society's effect Benefit.Currently, prepare the generally existing instrument and equipment valuableness of nano-silver thread, complex technical process, it is at high cost the problems such as, be unable to satisfy big Scale prepares the actual demand of high quality nano silver wire.Hence it is imperative that developing a kind of technology, it is equal can efficiently to prepare size One, the nano-silver thread of good conductivity.Prepare high shielding effect flexibility form film using nano-silver thread simultaneously there is also technologies it is immature, The problems such as film performance of preparation is poor.
Summary of the invention
It is excellent it is an object of the invention to solve at least the above problems and/or defect, and provide at least to will be described later Point.
In order to realize these purposes and other advantages according to the present invention, a kind of utilization nano-silver thread preparation Gao Ping is provided The method for imitating flexible form film, comprising the following steps:
Step 1: the polyethylene of 30~50 1~1.5mol/L of parts by volume is adjoined pyrrolidone using high-voltage electrostatic spinning apparatus Ethylene glycol solution is ejected into reactor;The silver nitrate ethylene glycol solution of 20~40 0.5~1mol/L of parts by volume is placed in simultaneously In ultrasonic atomizer, it is aerosol by silver nitrate ethylene glycol solution ultrasonic atomizatio, aerosol is passed through in reactor by carrier gas, The temperature being arranged in reactor is 120~160 DEG C, is stirred to react 30~60min, obtains reaction solution;In the reactor It fills the polyethylene that 50~100 parts by volume concentration are 0.3~0.5mol/L and adjoins pyrrolidone ethylene glycol solution and 1~5 parts by volume 0.1 The Klorvess Liquid of~0.3mol/L;
Step 2: the acetone solvent for being three times in reaction solution is added into the reaction solution of step 1, then ultrasound produces gained Object is placed in the centrifuge that revolving speed is 4500r/min and is centrifugated 30min, and after discarding upper solution, precipitating is dispersed in 50- The volume fraction of 100 parts by volume be 95% dehydrated alcohol in get arrive nano-silver thread;
Step 3: after nano-silver thread, amphiphilic solvent and nonpolar solvent are mixed, obtained dispersion liquid;Using Lang Gemiaoer-Buji trick after being assembled dispersion liquid on gas-liquid interface, forms the single layer of orderly one-dimensional nano line Film;Then again the single thin film of the one-dimensional nano line from water-air interfacial migration to substrate on, reached by the control number of plies To the control to assembly film thickness, assembling body thin film is obtained;
Step 4: 10~20 mass parts assembling body thin film is taken to be added in 80~100 parts of dressing agents, surpass at 80~100 DEG C 30~60min of sound is filtered, dry, obtains modification assembling body thin film;1~5 mass parts graphene powder is dispersed in 1000 In mass parts deionized water, after sodium hydroxide is added, then mix with postassium hypochlorite, after ultrasonic reaction, washed be dried to obtain changes Property graphene;The mass ratio of the graphene powder and sodium hydroxide is 1:30;The graphene powder and strong oxidizer Mass ratio is 1:10;
Step 5: preparing the modified graphene solution of 1~2g/L, it is molten that modification assembling body thin film is immersed in modified graphene In liquid, condensing agent is added, reacts 1~3h, it is washed, dry, obtain high shielding effect flexibility form film.
Preferably, in the step 1, the polyethylene of 30~50 1~1.5mol/L of parts by volume is adjoined into pyrrolidone ethylene glycol Solution extraction is into the syringe with stainless steel syringe needle and is fixed on the propulsion pump for being equipped with high voltage electrostatic equipment, will be stainless In steel needle head intercalation reaction device, certain high pressure then is set using high voltage electrostatic equipment on the stainless steel syringe needle of syringe, Propulsion pump fltting speed is set simultaneously, polyethylene is adjoined into pyrrolidone ethylene glycol solution solution and is ejected into reactor;It is described not It is 10~20mL/h that the internal diameter of rust steel needle head, which is 0.5~1mm, promotes the fltting speed of pump, the size of high-pressure electrostatic be 6~ 12kV。
Preferably, in the step 1, the power of ultrasonic atomizatio is 1~10kW, and frequency is 1.8~2.4MHz, atomization Rate is 20~100kg/h;The carrier gas is inert gas, and flow rate of carrier gas is 5~20L/min.
Preferably, further include following procedure between the step 1 neutralization procedure two: high-voltage pulse is added in reaction solution In electric field processing chamber, handled using high-pressure pulse electric;The parameter of high-pressure pulse electric processing are as follows: impulse amplitude is 8~12KV, pulse frequency are 800~1000Hz, and pulse width is 8~12us, and the processing time is 60-90min.
Preferably, in the step 3, amphiphilic solvent is n,N-Dimethylformamide, and nonpolar solvent is three chloromethanes Alkane;The volume ratio of the amphiphilic solvent and nonpolar solvent is 1:1~2;In the dispersion liquid, the concentration of nano-silver thread is 0.01~0.05g/mL.
Preferably, in the step 4, the frequency of the ultrasound used during modification assembling body thin film is obtained as 30 ~45KHz, and ultrasound uses intermitant irradiation, intermittent time when intermitant irradiation is 15~20s/5~10s.
Preferably, the dressing agent includes the raw material of following parts by weight: 10~20 parts of glutamic acid, 1~5 part of citric acid, 2 ~5 parts of polyvinyl alcohol, 0.1~0.3 part of picoline, 1~3 part of propylene glycol diglycidylether, 1~2 part of 1- ethyl -3- methyl Imidazole lactic acid, 0.5~1 part of Sodium Polyacrylate, 2~5 parts of γ-(2,3- glycidoxy) propyl trimethoxy silicanes, 10~30 Part acetone, 50~80 parts of water.
Preferably, the reaction process in the step 5 are as follows: by modification assembling body thin film, modified graphene solution and contracting Mixture is placed in sealing container, and being passed through nitrogen thereto is saturated nitrogen, and the sealing container is then placed in 1.5MeV, 30mA 60~90min of radiation treatment is carried out in electron accelerator.
Preferably, the radiation dose rate that uses of irradiating is 100~200kGy/h, irradiation dose for 200~ 400kGy。
Preferably, the dosage of the condensing agent is modify assembly film quality 1/5~1/6;The condensing agent is Mass ratio is 1- ethyl-(3- dimethylaminopropyl) carbodiimide hydrochloride and n-hydroxysuccinimide of 1:3.
The present invention is include at least the following beneficial effects: nano-silver thread prepared by the present invention is had excellent performance, electric conductivity, light transmittance And stability is greatly improved, while preparing high shielding effect flexible shielding form film using overlength nano-silver thread, obtains To film can be directly used for window fitting, and need not destroy window structure, easily realize that low square resistance, shield effectiveness are preferable, thoroughly Light rate is high, high shielding effect, high flexibility.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.
Specific embodiment:
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification Text can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more The presence or addition of a other elements or combinations thereof.
Embodiment 1:
A method of high shielding effect flexibility form film is prepared using nano-silver thread, comprising the following steps:
Step 1: it is molten that the polyethylene of 30 parts by volume 1.5mol/L adjoined pyrrolidone ethylene glycol using high-voltage electrostatic spinning apparatus Liquid is drawn into the syringe with stainless steel syringe needle and is fixed on the propulsion pump for being equipped with high voltage electrostatic equipment, by stainless steel In syringe needle intercalation reaction device, certain high pressure then is set using high voltage electrostatic equipment on the stainless steel syringe needle of syringe, together When setting promote pump fltting speed, polyethylene is adjoined into pyrrolidone ethylene glycol solution solution and is ejected into reactor;Simultaneously by 20 bodies The silver nitrate ethylene glycol solution of product part 1mol/L is placed in ultrasonic atomizer, is atomization by silver nitrate ethylene glycol solution ultrasonic atomizatio Aerosol is passed through in reactor by object by carrier gas, and the temperature being arranged in reactor is 160 DEG C, is stirred to react 60min, Obtain reaction solution;The polyethylene that 100 parts by volume concentration are 0.3mol/L is filled in the reactor adjoins pyrrolidone ethylene glycol solution With the Klorvess Liquid of 1 parts by volume 0.1mol/L;The internal diameter of the stainless steel syringe needle is 0.5mm, promotes the fltting speed of pump Size for 10mL/h, high-pressure electrostatic is 8kV;The power of ultrasonic atomizatio is 5kW, frequency 2.4MHz, atomization rates 80kg/ h;The carrier gas is inert gas, flow rate of carrier gas 20L/min;
Step 2: the acetone solvent for being three times in reaction solution is added into the reaction solution of step 1, then ultrasound produces gained Object is placed in the centrifuge that revolving speed is 4500r/min and is centrifugated 30min, and after discarding upper solution, precipitating is dispersed in 100 bodies The volume fraction of part is accumulated to arrive nano-silver thread in 95% dehydrated alcohol;
Step 3: after nano-silver thread, amphiphilic solvent and nonpolar solvent are mixed, obtained dispersion liquid;Using Lang Gemiaoer-Buji trick after being assembled dispersion liquid on gas-liquid interface, forms the single layer of orderly one-dimensional nano line Film;Then again the single thin film of the one-dimensional nano line from water-air interfacial migration to substrate on, reached by the control number of plies To the control to assembly film thickness, assembling body thin film is obtained;Amphiphilic solvent is n,N-Dimethylformamide, and nonpolarity is molten Agent is chloroform;The volume ratio of the amphiphilic solvent and nonpolar solvent is 1:1;In the dispersion liquid, nano-silver thread Concentration is 0.01g/mL;
Step 4: 20 mass parts assembling body thin film is taken to be added in 100 parts of dressing agents, and the ultrasound 60min at 100 DEG C, filtering, It is dry, obtain modification assembling body thin film;5 mass parts graphene powders are dispersed in 1000 mass parts deionized waters, are added After entering sodium hydroxide, then mix with postassium hypochlorite, it is washed to be dried to obtain modified graphene after ultrasonic reaction;The graphite The mass ratio of alkene powder and sodium hydroxide is 1:30;The mass ratio of the graphene powder and strong oxidizer is 1:10;Wherein, it obtains The frequency of the ultrasound used during assembling body thin film to modification is for 45KHz, and ultrasound is using intermitant irradiation, when intermitant irradiation Intermittent time be 15s/10s;
Step 5: preparing the modified graphene solution of 2g/L, modification assembling body thin film is immersed in modified graphene solution In, condensing agent is added, 3h is reacted, it is washed, dry, obtain high shielding effect flexibility form film;The dosage of the condensing agent is Modify the 1/5 of assembly film quality;The condensing agent is 1- ethyl-(3- dimethylaminopropyl) carbon that mass ratio is 1:3 Diimmonium salt hydrochlorate and n-hydroxysuccinimide.
Wherein, after tested and statistics, the diameter about 42nm of nano-silver thread obtained in step 2, length about 40um, major diameter Than being 952;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 88%, sheet resistance For 30 Ω/sq.
Embodiment 2:
A method of high shielding effect flexibility form film is prepared using nano-silver thread, comprising the following steps:
Step 1: the polyethylene of 50 parts by volume 1mol/L is adjoined pyrrolidone ethylene glycol solution using high-voltage electrostatic spinning apparatus It is drawn into the syringe with stainless steel syringe needle and is fixed on the propulsion pump for being equipped with high voltage electrostatic equipment, by stainless pin In head intercalation reaction device, certain high pressure then is set using high voltage electrostatic equipment on the stainless steel syringe needle of syringe, simultaneously Setting promotes pump fltting speed, and polyethylene is adjoined pyrrolidone ethylene glycol solution solution and is ejected into reactor;Simultaneously by 30 volumes The silver nitrate ethylene glycol solution of part 0.8mol/L is placed in ultrasonic atomizer, is atomization by silver nitrate ethylene glycol solution ultrasonic atomizatio Aerosol is passed through in reactor by object by carrier gas, and the temperature being arranged in reactor is 150 DEG C, is stirred to react 60min, Obtain reaction solution;The polyethylene that 100 parts by volume concentration are 0.5mol/L is filled in the reactor adjoins pyrrolidone ethylene glycol solution With the Klorvess Liquid of 3 parts by volume 0.2mol/L;The internal diameter of the stainless steel syringe needle is 1mm, the fltting speed of propulsion pump is 15mL/h, high-pressure electrostatic size be 12kV;The power of ultrasonic atomizatio is 10kW, frequency 2MHz, atomization rates 50kg/h; The carrier gas is inert gas, flow rate of carrier gas 15L/min;
Step 2: the acetone solvent for being three times in reaction solution is added into the reaction solution of step 1, then ultrasound produces gained Object is placed in the centrifuge that revolving speed is 4500r/min and is centrifugated 30min, and after discarding upper solution, precipitating is dispersed in 80 bodies The volume fraction of part is accumulated to arrive nano-silver thread in 95% dehydrated alcohol;
Step 3: after nano-silver thread, amphiphilic solvent and nonpolar solvent are mixed, obtained dispersion liquid;Using Lang Gemiaoer-Buji trick after being assembled dispersion liquid on gas-liquid interface, forms the single layer of orderly one-dimensional nano line Film;Then again the single thin film of the one-dimensional nano line from water-air interfacial migration to substrate on, reached by the control number of plies To the control to assembly film thickness, assembling body thin film is obtained;Amphiphilic solvent is n,N-Dimethylformamide, and nonpolarity is molten Agent is chloroform;The volume ratio of the amphiphilic solvent and nonpolar solvent is 1:2;In the dispersion liquid, nano-silver thread Concentration is 0.03g/mL;
Step 4: 10 mass parts assembling body thin film is taken to be added in 80 parts of dressing agents, the ultrasound 45min at 80 DEG C is filtered, and is done It is dry, obtain modification assembling body thin film;3 mass parts graphene powders are dispersed in 1000 mass parts deionized waters, are added After sodium hydroxide, then mix with postassium hypochlorite, it is washed to be dried to obtain modified graphene after ultrasonic reaction;The graphene The mass ratio of powder and sodium hydroxide is 1:30;The mass ratio of the graphene powder and strong oxidizer is 1:10;Wherein, it obtains The frequency of the ultrasound used during modification assembling body thin film is for 45KHz, and ultrasound is using intermitant irradiation, when intermitant irradiation Intermittent time is 15s/10s;
Step 5: preparing the modified graphene solution of 2g/L, modification assembling body thin film is immersed in modified graphene solution In, condensing agent is added, 3h is reacted, it is washed, dry, obtain high shielding effect flexibility form film;The dosage of the condensing agent is Modify the 1/6 of assembly film quality;The condensing agent is 1- ethyl-(3- dimethylaminopropyl) carbon that mass ratio is 1:3 Diimmonium salt hydrochlorate and n-hydroxysuccinimide.
Wherein, after tested and statistics, the diameter about 43nm of nano-silver thread obtained in step 2, length about 42um, major diameter Than being 976;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 89%, sheet resistance For 28 Ω/sq.
Embodiment 3:
Further include following procedure between the step 1 neutralization procedure two: high-voltage pulse electric field processing chamber is added in reaction solution In, it is handled using high-pressure pulse electric;The parameter of the high-pressure pulse electric processing are as follows: impulse amplitude 12KV, pulse Frequency is 1000Hz, and pulse width 12us, the processing time is 90min;
Remaining technical process and parameter with it is identical in embodiment 1.
Wherein, after tested and statistics, the diameter about 40nm of nano-silver thread obtained in step 2, length about 45um, major diameter Than being 1125;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 91%, side Resistance is 26 Ω/sq.
Embodiment 4:
Further include following procedure between the step 1 neutralization procedure two: high-voltage pulse electric field processing chamber is added in reaction solution In, it is handled using high-pressure pulse electric;The parameter of the high-pressure pulse electric processing are as follows: impulse amplitude 10KV, pulse Frequency is 800Hz, and pulse width 10us, the processing time is 60min;
Remaining technical process and parameter with it is identical in embodiment 1.
Wherein, after tested and statistics, the diameter about 40nm of nano-silver thread obtained in step 2, length about 45um, major diameter Than being 1125;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 90%, side Resistance is 27 Ω/sq.
Embodiment 5:
The dressing agent includes the raw material of following parts by weight: 20 parts of glutamic acid, 5 parts of citric acids, 2 parts of polyvinyl alcohol, 0.3 part Picoline, 2 parts of propylene glycol diglycidylethers, 2 parts of 1- ethyl-3-methylimidazole lactic acid, 1 part of Sodium Polyacrylate, 2 parts of γ- (2,3- glycidoxy) propyl trimethoxy silicane, 30 parts of acetone, 80 parts of water.
Remaining technical process and parameter with it is identical in embodiment 1.
Wherein, after tested and statistics, the diameter about 42nm of nano-silver thread obtained in step 2, length about 40um, major diameter Than being 952;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 91%, sheet resistance For 26 Ω/sq.
Embodiment 6:
The dressing agent includes the raw material of following parts by weight: 15 parts of glutamic acid, 2 parts of citric acids, 2 parts of polyvinyl alcohol, 0.3 part Picoline, 2 parts of propylene glycol diglycidylethers, 1 part of 1- ethyl-3-methylimidazole lactic acid, 1 part of Sodium Polyacrylate, 5 parts of γ- (2,3- glycidoxy) propyl trimethoxy silicane, 10 parts of acetone, 80 parts of water.
Remaining technical process and parameter with it is identical in embodiment 1.
Wherein, after tested and statistics, the diameter about 42nm of nano-silver thread obtained in step 2, length about 40um, major diameter Than being 952;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 91.8%, side Resistance is 26 Ω/sq.
Embodiment 7:
Reaction process in the step 5 are as follows: be placed in modification assembling body thin film, modified graphene solution and condensing agent In sealing container, being passed through nitrogen thereto is saturated nitrogen, then accelerates the electronics that the sealing container is placed in 1.5MeV, 30mA Radiation treatment 90min is carried out in device;The radiation dose rate used that irradiates is 100kGy/h, irradiation dose 400kGy.
Remaining technical process and parameter with it is identical in embodiment 1.
Wherein, after tested and statistics, the diameter about 42nm of nano-silver thread obtained in step 2, length about 40um, major diameter Than being 952;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 92.5%, side Resistance is 24 Ω/sq.
Embodiment 8:
Reaction process in the step 5 are as follows: be placed in modification assembling body thin film, modified graphene solution and condensing agent In sealing container, being passed through nitrogen thereto is saturated nitrogen, then accelerates the electronics that the sealing container is placed in 1.5MeV, 30mA Radiation treatment 60min is carried out in device;The radiation dose rate used that irradiates is 200kGy/h, irradiation dose 300kGy.
Remaining technical process and parameter with it is identical in embodiment 1.
Wherein, after tested and statistics, the diameter about 42nm of nano-silver thread obtained in step 2, length about 40um, major diameter Than being 952;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 92.8%, side Resistance is 24 Ω/sq.
Embodiment 9:
Reaction process in the step 5 are as follows: be placed in modification assembling body thin film, modified graphene solution and condensing agent In sealing container, being passed through nitrogen thereto is saturated nitrogen, then accelerates the electronics that the sealing container is placed in 1.5MeV, 30mA Radiation treatment 60min is carried out in device;The radiation dose rate used that irradiates is 200kGy/h, irradiation dose 300kGy.
Remaining technical process and parameter with it is identical in embodiment 6.
Wherein, after tested and statistics, the diameter about 42nm of nano-silver thread obtained in step 2, length about 40um, major diameter Than being 952;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 93.5%, side Resistance is 22 Ω/sq.
Embodiment 10:
Further include following procedure between the step 1 neutralization procedure two: high-voltage pulse electric field processing chamber is added in reaction solution In, it is handled using high-pressure pulse electric;The parameter of the high-pressure pulse electric processing are as follows: impulse amplitude 10KV, pulse Frequency is 800Hz, and pulse width 10us, the processing time is 60min;
Remaining technical process and parameter with it is identical in embodiment 9.
Wherein, after tested and statistics, the diameter about 40nm of nano-silver thread obtained in step 2, length about 45um, major diameter Than being 1125;Average light transmission rate of the high shielding effect flexibility form film obtained in step 5 in visible light region is 94.3%, Sheet resistance is 20 Ω/sq.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details and example shown and described herein.

Claims (3)

1. a kind of method for preparing high shielding effect flexibility form film using nano-silver thread, which comprises the following steps:
Step 1: the polyethylene of 30~50 1~1.5mol/L of parts by volume is adjoined pyrrolidone second two using high-voltage electrostatic spinning apparatus Alcoholic solution is ejected into reactor;The silver nitrate ethylene glycol solution of 20~40 0.5~1mol/L of parts by volume is placed in ultrasound simultaneously In atomizer, it is aerosol by silver nitrate ethylene glycol solution ultrasonic atomizatio, aerosol is passed through in reactor by carrier gas, is arranged Temperature in reactor is 120~160 DEG C, is stirred to react 30~60min, obtains reaction solution;It is filled in the reactor The polyethylene that 50~100 parts by volume concentration are 0.3~0.5mol/L adjoin pyrrolidone ethylene glycol solution and 1~5 parts by volume 0.1~ The Klorvess Liquid of 0.3mol/L;
Step 2: the acetone solvent for being three times in reaction solution is added into the reaction solution of step 1, then ultrasound sets products therefrom In being centrifugated 30min in the centrifuge that revolving speed is 4500r/min, after discarding upper solution, precipitating is dispersed in 50-100 body The volume fraction of part is accumulated to arrive nano-silver thread in 95% dehydrated alcohol;
Step 3: after nano-silver thread, amphiphilic solvent and nonpolar solvent are mixed, obtained dispersion liquid;Using bright lattice Miao Er-Buji trick after being assembled dispersion liquid on gas-liquid interface, forms the single thin layer of orderly one-dimensional nano line Film;Then again the single thin film of the one-dimensional nano line from water-air interfacial migration to substrate on, reached by the control number of plies Control to assembly film thickness obtains assembling body thin film;
Step 4: 10~20 mass parts assembling body thin film is taken to be added in 80~100 parts of dressing agents, the ultrasound 30 at 80~100 DEG C ~60min is filtered, dry, obtains modification assembling body thin film;1~5 mass parts graphene powder is dispersed in 1000 mass In part deionized water, after sodium hydroxide is added, then mix with postassium hypochlorite, it is washed to be dried to obtain modified stone after ultrasonic reaction Black alkene;The mass ratio of the graphene powder and sodium hydroxide is 1:30;The quality of the graphene powder and strong oxidizer Than for 1:10;
Step 5: preparing the modified graphene solution of 1~2g/L, modification assembling body thin film is immersed in modified graphene solution In, condensing agent is added, 1~3h is reacted, it is washed, dry, obtain high shielding effect flexibility form film;
In the step 1, the polyethylene of 30~50 1~1.5mol/L of parts by volume is adjoined into pyrrolidone ethylene glycol solution and is drawn into band Have in the syringe of stainless steel syringe needle and be fixed on the propulsion pump for being equipped with high voltage electrostatic equipment, stainless steel syringe needle is inserted into anti- It answers in device, certain high pressure then is set using high voltage electrostatic equipment on the stainless steel syringe needle of syringe, while propulsion is set Fltting speed is pumped, polyethylene is adjoined into pyrrolidone ethylene glycol solution solution and is ejected into reactor;The stainless steel syringe needle it is interior Diameter is 0.5~1mm, the fltting speed of propulsion pump is 10~20mL/h, the size of high-pressure electrostatic is 6~12kV;
In the step 1, the power of ultrasonic atomizatio is 1~10kW, and frequency is 1.8~2.4MHz, atomization rates are 20~ 100kg/h;The carrier gas is inert gas, and flow rate of carrier gas is 5~20L/min;
Further include following procedure between the step 1 neutralization procedure two: reaction solution be added in high-voltage pulse electric field processing chamber, It is handled using high-pressure pulse electric;The parameter of the high-pressure pulse electric processing are as follows: impulse amplitude is 8~12KV, pulse Frequency is 800~1000Hz, and pulse width is 8~12us, and the processing time is 60-90min;
In the step 3, amphiphilic solvent is n,N-Dimethylformamide, and nonpolar solvent is chloroform;It is described amphiphilic The volume ratio of solvent and nonpolar solvent is 1:1~2;In the dispersion liquid, the concentration of nano-silver thread is 0.01~0.05g/mL;
In the step 4, the frequency of the ultrasound used during modification assembling body thin film is obtained as 30~45KHz, and ultrasound Using intermitant irradiation, intermittent time when intermitant irradiation is 15~20s/5~10s;
The dressing agent includes the raw material of following parts by weight: 10~20 parts of glutamic acid, 1~5 part of citric acid, 2~5 parts of polyethylene Alcohol, 0.1~0.3 part of picoline, 1~3 part of propylene glycol diglycidylether, 1~2 part of 1- ethyl-3-methylimidazole lactic acid, 0.5~1 part of Sodium Polyacrylate, 2~5 parts of γ-(2,3- glycidoxy) propyl trimethoxy silicanes, 10~30 parts of acetone, 50 ~80 parts of water;
The dosage of the condensing agent is modify assembly film quality 1/5~1/6;The condensing agent is that mass ratio is 1:3's 1- ethyl-(3- dimethylaminopropyl) carbodiimide hydrochloride and n-hydroxysuccinimide.
2. the method for preparing high shielding effect flexibility form film using nano-silver thread as described in claim 1, which is characterized in that institute State the reaction process in step 5 are as follows: modification assembling body thin film, modified graphene solution and condensing agent are placed in sealing container, Being passed through nitrogen thereto is saturated nitrogen, and then the sealing container is placed in the electron accelerator of 1.5MeV, 30mA and carries out spoke According to 60~90min of processing.
3. the method for preparing high shielding effect flexibility form film using nano-silver thread as claimed in claim 2, which is characterized in that institute The radiation dose rate for irradiating and using is stated as 100~200kGy/h, irradiation dose is 200~400kGy.
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