CN104562444B - Electrostatic spraying nano-cobweb waterproof moisture-permeable film and preparation method thereof - Google Patents
Electrostatic spraying nano-cobweb waterproof moisture-permeable film and preparation method thereof Download PDFInfo
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- CN104562444B CN104562444B CN201410842872.2A CN201410842872A CN104562444B CN 104562444 B CN104562444 B CN 104562444B CN 201410842872 A CN201410842872 A CN 201410842872A CN 104562444 B CN104562444 B CN 104562444B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/732—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by fluid current, e.g. air-lay
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2600/00—Uses of garments specially adapted for specific purposes
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2600/00—Uses of garments specially adapted for specific purposes
- A41D2600/10—Uses of garments specially adapted for specific purposes for sport activities
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to an electrostatic spraying nano-cobweb waterproof moisture-permeable film and a preparation method thereof, in particular to a processing technology for preparing a nano-cobweb waterproof moisture-permeable film with electrostatic spraying emulsion by counterblast blowing assisted wet formation. The method specifically includes: in the process of electrostatic spraying, blowing liquid droplets with counterblast in the direction parallel to the spraying direction of polymer emulsion droplets, enabling the droplets to be stressed and deformed during drying in an electric field so as to form a liquid film, and further performing phase separation to form a two-dimensional web material of a stabilized hexagonal mesh structure. The nano-cobweb waterproof moisture-permeable film has the advantages that the cobweb coverage area is 100%, structural integrity is good, average pore size is 10-200nm, and the porosity is more than or equal to 80%; the waterproof moisture-permeable film is resistant to water pressure which is more than or equal to 120kPa, moisture permeable flux is more than or equal to 15000g/m2/d, and the waterproof moisture-permeable film has broad application prospect in the field of outdoor sportswear, field operation military uniform and the like.
Description
Technical field
The invention belongs to electrostatic spraying technical field, it is related to a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film and its preparation side
Method, more particularly to a kind of injection using back draught assists electrostatic spraying emulsion into the net to prepare nanometer spider web waterproof humidity-permeant film
Process technology.
Background technology
People are unavoidable in environment out of doors to meet with the vile weathers such as heavy rain, severe cold, and traditional dress is easily soaked by sleet and deposits
Be difficult to the defect discharged in time in perspiration, the viscous sense of discomfort such as wet, cold can be produced and even cause cold injury etc. to injure, therefore wear and
The clothing of tool waterproof and moisture-inhibiting (perspiring) function have become resists one of boisterous important channel.Waterproof Breathable microporous membrane is made
Core material for Waterproof Breathable function clothes is it is desirable to it has less aperture (to ensure preferable water proofing property) and higher
Voidage (to ensure higher moisture-inhibiting).Electrostatic spinning fiber film with its fibre diameter little, aperture is little, porosity is high etc., and structure is excellent
Gesture, has huge application potential in high performance water proof moisture-inhibiting microporous membrane manufacture field.Presently disclosed electrostatic spinning fiber base is prevented
The technology of water moisture-inhibiting microporous membrane includes：A kind of preparation method of permeable watertight polyurethane nanofiber film
(CN102517794A), a kind of High-efficiency waterproof moisture-permeable shell fabric and preparation method thereof (CN102632648A), a kind of Waterproof Breathable are many
Function and service micro-/ nano fabric and preparation method thereof (CN103388265A), Waterproof Breathable knit the preparation method of film, Waterproof Breathable
Fabric and preparation method thereof (CN103437072A), a kind of Waterproof Breathable composite membrane and preparation method thereof (CN103963393A) etc.
It is all that polymer solution is carried out electrostatic spinning, in the fibrous membrane of its preparation, aperture and porosity are still relatively low and be difficult to control
System, leads to waterproofing and moisture-penetration performances all relatively low (water pressure resistance ＜ 40kPa, moisture-inhibiting flux ＜ 9000g/m2/ d), thus limiting electrostatic
Spin the application performance of fiber base waterproof humidity-permeant film.
And the nanometer spider web being found in the recent period is a kind of novel electrostatic spinning fiber structure, this structure is typically found in ultra-fine
Between electrostatic spinning fiber support, it is the two-dimension netted fiber film material having similar to Aranea, soap bubble structure, fiber in net
Average diameter be 5～30nm, aperture is between 20～300nm.The technology of presently disclosed Static Spinning nanometer spider web includes：Specially
Sharp CN102704028A discloses " a kind of preparation method of meta-aramid nanometer spider web fibrous membrane ", and it is by configuring meta-aramid
Electrospinning raw material, and meta-aramid electrospinning raw material is added in electrostatic spinning apparatus carries out electrostatic spinning, prepared meta-aramid is received
Rice spider web fibrous membrane.Patent CN101564914 discloses a kind of " preparation of nanometer cobweb/nanometer fiber composite protective material
Method ",, by configuring certain density macromolecule electrospun solution and carrying out electrostatic spinning, spun silk is received with one layer of base material for it
Cover one layer of top material afterwards again, hot pressing obtains a nanometer spider web/nanofiber Multi-layer composite protective material.These patents are all will be poly-
Polymer solution carries out electrostatic spinning, though preparing the spider web structure that diameter is little, aperture is little, the network structure of its preparation is with fibre
Tie up as support and the composite that has nanometer spider web, its porosity is low, area coverage is little it is difficult to obtain being entirely spider web structure
Material it is impossible to meet the demand of Waterproof Breathable practical application.
Content of the invention
The technical problem to be solved is to provide a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film and its preparation
Method, in particular, provides a kind of utilization back draught and is blown the electrostatic spraying emulsion preparation nanometer spider web waterproof for supplementary meanss
The process technology of moisture permeable membrane, can prepare small-bore, high porosity, high area coverage (100%), controlled the having stably of size
The nanometer spider web waterproof humidity-permeant film of hexagonal meshes structure.Polymer emulsion during electrostatic spraying, by electric field force, sky
Atmidometer, back draught resistance, electrostatic repulsion and capillary comprehensive function.Emulsion droplet becomes under the effect of high voltage electric field power
Shape, shrinks because of capillary effect, is squeezed into thin liquid film by the effect of air drag and back draught resistance,
Also it is subject to the effect of electrostatic repulsion gradually to expand, liquid film is gradually thinning and quickly expands, and final warp splits into
Net.The nanometer spider web waterproof humidity-permeant film of size and structure controllable precise can be obtained by the present invention, thus improve it at family
The application power in the fields such as outer sportswear, field operation military uniform.
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film of the present invention, is during electrostatic spraying,
In the injection direction parallel to polymer emulsion drop, drop is blown with back draught, promotes drop to fly in the electric field
When stress deformation formed liquid film, and then be separated, receive substrate surface formed nanometer spider web waterproof humidity-permeant film；Described nanometer spider
Net waterproof humidity-permeant film is the two-dimension netted material with stable hexagonal meshes structure.Gained nanometer spider web waterproof humidity-permeant film resistance to
Hydraulic pressure >=120kPa, moisture-inhibiting flux >=15000g/m2/d.
As preferred technical scheme：
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as above, the injection of described back draught
Flow velocity is 1～100m/s.Back draught can be produced by the draught head between the inlet, outlet system of electrostatic spraying casing.In electrostatic
Injection casing has a gas handling system near the one side of base material, can be as back draught blowing device (with emulsion injection direction phase
Instead), the one side near injection jet pipe has a system of giving vent to anger.By adjusting the draught head between inlet, outlet system, it is possible to provide tool
There is the back draught of certain speed (1～100m/s).The effect of back draught is：Polymer emulsion in the presence of electrostatic field,
A large amount of charged drops can be produced, charged drop flies to reception pole plate in the presence of high electric field power, entering in electrostatic spraying unit,
The back draught that the draught head between system of giving vent to anger is led to can produce a counteracting force so as to be squeezed to charged drop
Gradually liquid film is become by drop, being conducive to working with other stress one promotes liquid film to split into net.
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as above, the property of described polymer emulsion
Matter：Mass concentration is 2～40%, and surface tension range is 10～50mN/m, and conductivity range is 0.05～10mS/cm.Because of it
Emulsion property is different, and in course of injection, the active force suffered by emulsion droplet is also different, institute therefore during electrostatic spraying
Technological parameter (voltage and air-flow injecting velocity) is also otherwise varied：
When emulsion electrical conductivity is 0.05～4.0mS/cm, voltage is 96～120kV；Emulsion electrical conductivity be 4.1～
During 7.0mS/cm, voltage is 76～95kV；When emulsion electrical conductivity is 7.1～10.0mS/cm, voltage is 50～75kV.
When emulsion surface tension is 10～25mN/m, air flow blowing speed is 1～35m/s；When emulsion surface tension is
During 26～35mN/m, air flow blowing speed is 36～65m/s；When emulsion surface tension is 36～50mN/m, air flow blowing speed
Spend for 66～100m/s.
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as above, described polymer emulsion is pure
Polymer emulsion or the polymer emulsion containing at least one inorganic salt.
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as above, described straight polymer emulsion is
Polyaminoester emulsion, polyacrylate dispersion, organic silicon emulsion, polystyrene emulsion, polyvinyl acetate emulsion, polylactic acid-own interior
Ester emulsion, polylactic acid-polyethylene glycol oxide emulsion, polyurethane acrylic emulsion copolymerization emulsion, interpolymer latex of polystyrene and acrylic ester,
One of vinyl acetate-acrylic copolymer emulsion, Silicone-Acrylic Copolymer Emulsion or arbitrarily several combinations.Institute
State straight polymer emulsion and emulsion property, the surface contained by different emulsions can be adjusted by the combination of a kind of or arbitrarily several emulsions
Active agent content and species are variant, and the surface tension of the emulsion being obtained after combination also has a scope (10～50mN/m), if
The surface tension of emulsion is less, emulsion droplet in the electric field flight when be easily stretched and through being separated into net, therefore required
Air flow blowing resistance is less, and corresponding air flow blowing speed is less.
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as above, described containing at least one no
The polymer emulsion of machine salt is the mixture of inorganic salt and straight polymer emulsion, and described inorganic salt is calcium chloride, lithium chloride, chlorine
Change potassium, sodium chloride, iron chloride, zinc chloride, barium chloride, magnesium chloride, sodium carbonate, sodium bicarbonate, potassium carbonate, silver nitrate, copper nitrate,
Any one or a few mixture in sodium nitrate, sodium sulfite and lithium bromide.The mechanism of action of inorganic salt is：Inorganic salt adds
It is added in polymer emulsion, these salt decompose generation cation and anion, increased the quantity of particle in emulsion, thus improving
Its electrical conductivity.The drop that the polymer emulsion of high conductivity is formed, the electric field force effect that it is subject to is larger, and then the sky being subject to
Also ratio is larger for the effect of atmidometer, is conducive to the compressive deformation of drop.
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as above, the addition of described inorganic salt
For described polymer emulsion gross mass 0.01～15%；Configuration process：First inorganic salt is added in deionized water, and ultrasonic
Then straight polymer emulsion is added thereto by 1～20 hour, and with magnetic stirring apparatuses continuous stirring 5～24 hours, prepares
Uniformly and stable emulsion.
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as above, described electrostatic spraying process
Voltage is 50～120kV, and receiving range is 10～50cm, and rate of flooding is 0.1～15mL/h, and 15～30 DEG C of temperature is relatively wet
Degree 15～90%.
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as above, described reception base material is to knit
Thing, wire netting, cellulose paper, aluminium foil or non-weaving cloth.
The nanometer spider web waterproof humidity-permeant film of the present invention, for having the two-dimension netted material of stable hexagonal meshes structure, spider
Net area coverage is 100%, and structural intergrity is good, and average pore size is 10～200nm, porosity of=80%.The present invention is obtained
Nanometer spider web waterproof humidity-permeant film can be used for preparing high water pressure resistance, the waterproof humidity-permeant film of high moisture-inhibiting, sportswear, field army out of doors
The fields such as clothes have broad application prospects.
Beneficial effect
(1) it is different from traditional nanometer spider web material prepared by electrostatic spinning, the present invention uses electrostatic spraying breast
Liquid net-forming technology, the nanometer spider web of preparation is not with fiber as support, entirely has stable hexagonal meshes structure, can
It is effectively increased area coverage, porosity and the connectedness of spider web material, can be used for preparing high water pressure resistance, the Waterproof Breathable of high moisture-inhibiting
Film, out of doors the field such as sportswear, field operation military uniform be with a wide range of applications.
(2) present invention is different from traditional electrostatic spraying technology, adopts back draught first parallel to polymer emulsion
The injection direction of drop is blown to drop, prepares the nanometer spider web Waterproof Breathable with stable hexagonal meshes structure
Film.By adjusting the draught head between inlet, outlet system in electrostatic spraying unit, produce different back draught speed, and tie
Close emulsion droplet others stressing conditions and realize the accurate tune to spider web waterproof humidity-permeant film area coverage, average pore size and porosity
Control.
(3) the nanometer spider web waterproof humidity-permeant film of present invention preparation, assumes effective bonding interconnection, and can tie between spider web
The emulsion property closing polymer regulates and controls to its morphosis, has extensive actual application prospect.
Brief description
Accompanying drawing is the electrostatic spraying schematic diagram of the present invention
In figure 1 is electrostatic spraying casing；2 is high-voltage DC power supply；3 is electrostatic spraying liquid-supplying system and injection syringe needle；4 are
Receive base material；5 is electrostatic spraying drop；6 is gas handling system；7 is system of giving vent to anger.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate this
Bright rather than limit the scope of the present invention.In addition, it is to be understood that after having read the content of present invention instruction, art technology
Personnel can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Fixed scope.
A kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film, for having the two-dimension netted material of stable hexagonal meshes structure
Material, spider web area coverage is 100%, and structural intergrity is good, and average pore size is 10～200nm, porosity of=80%, gained nanometer
Water pressure resistance >=the 120kPa of spider web waterproof humidity-permeant film, moisture-inhibiting flux >=15000g/m2/d.
Embodiment 1
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) calcium chloride is dissolved in deionized water, and ultrasonic 1 hour, then polyaminoester emulsion is dissolved in chloride
Change in the deionized water of calcium, and with 5 hours of magnetic stirring apparatuses continuous stirring, prepare uniform, stable emulsion；Described equal
In even emulsion, the mass concentration of polyaminoester emulsion is 40%, and the content of calcium chloride is the 0.01% of emulsion gross mass；Described breast
The electrical conductivity of liquid is 0.05mS/cm, and surface tension is 10mN/cm；
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material 4 is fabric, receiving range is 10cm；
(3) open high-voltage DC power supply 2, voltage is adjusted to 120kV, the ambient temperature of electrostatic spraying is 15 DEG C, relatively wet
Spend for 40%, emulsion is sprayed onto on reception base material 4 with the jet velocity of 0.5mL/h, adjusts gas handling system 6, system of giving vent to anger 7 simultaneously
Between draught head, so that back draught with the speed of 1m/s, electrostatic spraying drop 5 is blown, make drop in electric field force, sky
Net is split into, prepared nanometer spider web is prevented under atmidometer, back draught resistance, electrostatic repulsion and capillary comprehensive function
The feature of water moisture permeable membrane is 100% for spider web area coverage, and average pore size is 20nm, and porosity is 80%.The nanometer spider obtaining
The water pressure resistance of net waterproof humidity-permeant film is 120kPa, and moisture-inhibiting flux is 15000g/m2/d.
Embodiment 2
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) sodium chloride is added in deionized water, and ultrasonic 3 hours, then polyacrylate dispersion is dissolved in
In the deionized water of sodium chloride-containing, above-mentioned emulsion is placed in 8 hours of continuous stirring on magnetic stirring apparatuss, prepares uniformly, surely
Fixed emulsion；In described uniform emulsion, the mass concentration of polyacrylate dispersion is 35%, and the content of sodium chloride is that emulsion is total
The 15% of quality, the electrical conductivity of described emulsion is 4mS/cm, and surface tension is 50mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is wire netting, receiving range is 15cm；
(3) open high voltage power supply, voltage is adjusted to 96kV, the ambient temperature of electrostatic spraying is 15 DEG C, and relative humidity is
90%, emulsion is sprayed onto on reception base material with the jet velocity of 2mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 100m/s, makes drop in electric field force, air drag, back draught resistance
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is under power, electrostatic repulsion and capillary comprehensive function
Spider web area coverage is 100%, and average pore size is 60nm, and porosity is 85%.Obtain nanometer spider web waterproof humidity-permeant film resistance to
Hydraulic pressure is 123kPa, and moisture-inhibiting flux is 16000g/m2/d.
Embodiment 3
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) lithium chloride is added in deionized water, and ultrasonic 6 hours, then polystyrene emulsion is dissolved in and contains
In the deionized water of lithium chloride, above-mentioned emulsion is placed in 6 hours of continuous stirring on magnetic stirring apparatuss, prepares uniformly, stably
Emulsion；In described uniform emulsion, the mass concentration of polystyrene emulsion is 30%, and the content of lithium chloride is emulsion gross mass
1%, the electrical conductivity of described emulsion is 4.1mS/cm, and surface tension is 26mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is cellulose paper, receiving range is 50cm；
(3) open high voltage power supply, voltage is adjusted to 95kV, the ambient temperature of electrostatic spraying is 30 DEG C, and relative humidity is
50%, emulsion is sprayed onto on reception base material with the jet velocity of 6mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 36m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 100nm, and porosity is 90%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 125kPa, moisture-inhibiting flux is 15200g/m2/d.
Embodiment 4
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) potassium chloride and iron chloride are added in a certain amount of deionized water, and ultrasonic 20 hours, then by benzene second
Alkene-acrylate copolymer emulsion is dissolved in chloride containing potassium and the deionized water of iron chloride, and above-mentioned emulsion is placed in magnetic agitation
15 hours of continuous stirring on device, prepare emulsion uniformly, stable；In described uniform emulsion, cinnamic acrylic ester is common
The mass concentration of poly- emulsion is 2%, and the content of potassium chloride and iron chloride is the 1.5% of emulsion gross mass, the ratio of both mixing
For 1:4, the electrical conductivity of described emulsion is 7mS/cm, and surface tension is 25mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is aluminium foil, receiving range is 25cm；
(3) open high voltage power supply, voltage is adjusted to 76kV, the ambient temperature of electrostatic spraying is 20 DEG C, and relative humidity is
55%, emulsion is sprayed onto on reception base material with the jet velocity of 15mL/h, adjusts the draught head between inlet, outlet system simultaneously,
So that back draught with the speed of 35m/s, emulsion droplet is blown, make drop in electric field force, air drag, back draught resistance
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is under power, electrostatic repulsion and capillary comprehensive function
Spider web area coverage is 100%, and average pore size is 150nm, and porosity is 95%.Obtain nanometer spider web waterproof humidity-permeant film resistance to
Hydraulic pressure is 127kPa, and moisture-inhibiting flux is 15400g/m2/d.
Embodiment 5
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) zinc chloride is added in deionized water, and ultrasonic 4 hours, then organosilicon and polyvinyl acetate are mixed
Close emulsion to be dissolved in the deionized water of Containing Zinc Chloride, above-mentioned emulsion be placed in 24 hours of continuous stirring on magnetic stirring apparatuss,
Prepare emulsion uniformly, stable；In described uniform emulsion, the mass concentration of organosilicon and poly-vinegar acid mixed emulsion is
20%, both mixed proportions are 1:3, the content of zinc chloride is the 2% of emulsion gross mass.The electrical conductivity of described emulsion is
7.1mS/cm, surface tension is 36mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is cellulose paper, receiving range is 30cm；
(3) open high voltage power supply, voltage is adjusted to 75kV, the ambient temperature of electrostatic spraying is 22 DEG C, and relative humidity is
15%, emulsion is sprayed onto on reception base material with the jet velocity of 8mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 66m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 200nm, and porosity is 97%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 129kPa, moisture-inhibiting flux is 15600g/m2/d.
Embodiment 6
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) lithium bromide is added in deionized water, and ultrasonic 5 hours, then by polylactic acid-caprolactone emulsion and poly-
Lactic acid-polyethylene glycol oxide mixed emulsion is dissolved in the deionized water containing lithium bromide, and above-mentioned emulsion is placed on magnetic stirring apparatuss
14 hours of continuous stirring, prepare emulsion uniformly, stable；In described uniform emulsion, polylactic acid-caprolactone emulsion and poly-
The mass concentration of lactic acid-polyethylene glycol oxide mixed emulsion is 15%, and both mixed proportions are 2:3, the content of lithium bromide is breast
The 12% of liquid gross mass.The electrical conductivity of described emulsion is 10mS/cm, and surface tension is 35mN/cm.
(2) use electrostatic spraying device injection shown in the drawings, first pass through liquid-supplying system and emulsion is filled in jet pipe, connect
Receipts base material is non-weaving cloth, and receiving range is 50cm；
(3) open high voltage power supply, voltage is adjusted to 50kV, the ambient temperature of electrostatic spraying is 25 DEG C, and relative humidity is
35%, emulsion is sprayed onto on reception base material with the jet velocity of 5mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 65m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 190nm, and porosity is 99%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 130kPa, moisture-inhibiting flux is 15800g/m2/d.
Embodiment 7
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) barium chloride is dissolved in deionized water, and ultrasonic 10 hours, then by polyurethane acrylic emulsion copolymerization
Emulsion is dissolved in the deionized water of chloride containing barium, and with 20 hours of magnetic stirring apparatuses continuous stirring, prepares uniform, steady
Fixed emulsion；In described uniform emulsion, the mass concentration of polyurethane acrylic emulsion copolymerization emulsion is 10%, the containing of barium chloride
Measure 0.09% for emulsion gross mass；The electrical conductivity of described emulsion is 1mS/cm, and surface tension is 15mN/cm；
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material 4 is fabric, receiving range is 16cm；
(3) open high-voltage DC power supply 2, voltage is adjusted to 100kV, the ambient temperature of electrostatic spraying is 20 DEG C, relatively wet
Spend for 80%, emulsion is sprayed onto on reception base material 4 with the jet velocity of 0.1mL/h, adjusts gas handling system 6, system of giving vent to anger 7 simultaneously
Between draught head, so that back draught with the speed of 20m/s, electrostatic spraying drop 5 is blown, make drop in electric field force, sky
Net is split into, prepared nanometer spider web is prevented under atmidometer, back draught resistance, electrostatic repulsion and capillary comprehensive function
The feature of water moisture permeable membrane is 100% for spider web area coverage, and average pore size is 20nm, and porosity is 80%.The nanometer spider obtaining
The water pressure resistance of net waterproof humidity-permeant film is 133kPa, and moisture-inhibiting flux is 16000g/m2/d.
Embodiment 8
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) magnesium chloride is added in deionized water, and ultrasonic 3 hours, then by vinyl acetate-acrylic ester copolymer
Emulsion is dissolved in the deionized water of magnesium chloride containing, above-mentioned emulsion is placed in 10 hours of continuous stirring on magnetic stirring apparatuss, joins
Make uniform, stable emulsion；In described uniform emulsion, the mass concentration of vinyl acetate-acrylic copolymer emulsion is
32%, the content of magnesium chloride is the 10% of emulsion gross mass, and the electrical conductivity of described emulsion is 3mS/cm, and surface tension is 40mN/
cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is wire netting, receiving range is 15cm；
(3) open high voltage power supply, voltage is adjusted to 98kV, the ambient temperature of electrostatic spraying is 10 DEG C, and relative humidity is
60%, emulsion is sprayed onto on reception base material with the jet velocity of 3mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 80m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 60nm, and porosity is 85%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 123kPa, moisture-inhibiting flux is 15200g/m2/d.
Embodiment 9
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) sodium carbonate is added in deionized water, and ultrasonic 6 hours, then that silicone acrylate emulsion is molten
Solution, in the deionized water of containing sodium carbonate, above-mentioned emulsion is placed in 6 hours of continuous stirring on magnetic stirring apparatuss, is configured to all
Even, stable emulsion；In described uniform emulsion, the mass concentration of silicone acrylate emulsion is 30%, the containing of sodium carbonate
Measure 1% for emulsion gross mass, the electrical conductivity of described emulsion is 5mS/cm, and surface tension is 30mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is cellulose paper, receiving range is 50cm；
(3) open high voltage power supply, voltage is adjusted to 90kV, the ambient temperature of electrostatic spraying is 30 DEG C, and relative humidity is
60%, emulsion is sprayed onto on reception base material with the jet velocity of 12mL/h, adjusts the draught head between inlet, outlet system simultaneously,
So that back draught with the speed of 60m/s, emulsion droplet is blown, make drop in electric field force, air drag, back draught resistance
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is under power, electrostatic repulsion and capillary comprehensive function
Spider web area coverage is 100%, and average pore size is 100nm, and porosity is 90%.Obtain nanometer spider web waterproof humidity-permeant film resistance to
Hydraulic pressure is 125kPa, and moisture-inhibiting flux is 15400g/m2/d.
Embodiment 10
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) sodium bicarbonate is added in a certain amount of deionized water, and ultrasonic 20 hours, then by styrene-propene
Acid esters copolymer emulsion is dissolved in the deionized water containing sodium bicarbonate, and above-mentioned emulsion is placed in continuous stirring 15 on magnetic stirring apparatuss
Individual hour, prepares emulsion uniformly, stable；In described uniform emulsion, the quality of interpolymer latex of polystyrene and acrylic ester is dense
Spend for 5%, sodium bicarbonate content is the 1.5% of emulsion gross mass, the electrical conductivity of described emulsion is 6mS/cm, and surface tension is
20mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is aluminium foil, receiving range is 25cm；
(3) open high voltage power supply, voltage is adjusted to 80kV, the ambient temperature of electrostatic spraying is 20 DEG C, and relative humidity is
55%, emulsion is sprayed onto on reception base material with the jet velocity of 15mL/h, adjusts the draught head between inlet, outlet system simultaneously,
So that back draught with the speed of 30m/s, emulsion droplet is blown, make drop in electric field force, air drag, back draught resistance
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is under power, electrostatic repulsion and capillary comprehensive function
Spider web area coverage is 100%, and average pore size is 150nm, and porosity is 95%.Obtain nanometer spider web waterproof humidity-permeant film resistance to
Hydraulic pressure is 127kPa, and moisture-inhibiting flux is 15600g/m2/d.
Embodiment 11
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) potassium titanate is added in deionized water, and ultrasonic 4 hours, then by organosilicon and and polyurethane mixing
Emulsion is dissolved in the deionized water containing potassium titanate, above-mentioned emulsion is placed in 24 hours of continuous stirring on magnetic stirring apparatuss, joins
Make uniform, stable emulsion；In described uniform emulsion, the mass concentration of organosilicon and polyurethane mixed emulsion is 20%,
Both mixed proportions are 1:3, the content of potassium titanate is the 5% of emulsion gross mass, and the electrical conductivity of described emulsion is 8mS/cm, table
Face tension force is 42mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is cellulose paper, receiving range is 30cm；
(3) open high voltage power supply, voltage is adjusted to 55kV, the ambient temperature of electrostatic spraying is 22 DEG C, and relative humidity is
15%, emulsion is sprayed onto on reception base material with the jet velocity of 8mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 70m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 200nm, and porosity is 97%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 130kPa, moisture-inhibiting flux is 15800g/m2/d.
Embodiment 12
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) silver nitrate is added in deionized water, and ultrasonic 5 hours, then by polystyrene emulsion and polylactic acid-
Polyethylene glycol oxide mixed emulsion is dissolved in the deionized water containing silver nitrate, above-mentioned emulsion is placed on magnetic stirring apparatuss and continuously stirs
Mix 14 hours, prepare emulsion uniformly, stable；In described uniform emulsion, polystyrene emulsion and polylactic acid-polyoxygenated
The mass concentration of ethylene mixed emulsion is 15%, and both mixed proportions are 2:3, the content of silver nitrate is emulsion gross mass
12%.The electrical conductivity of described emulsion is 9mS/cm, and surface tension is 32mN/cm.
(2) use electrostatic spraying device injection shown in the drawings, first pass through liquid-supplying system and emulsion is filled in jet pipe, connect
Receipts base material is non-weaving cloth, and receiving range is 50cm；
(3) open high voltage power supply, voltage is adjusted to 55kV, the ambient temperature of electrostatic spraying is 25 DEG C, and relative humidity is
35%, emulsion is sprayed onto on reception base material with the jet velocity of 5mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 39m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 190nm, and porosity is 99%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 133kPa, moisture-inhibiting flux is 15200g/m2/d.
Embodiment 13
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) copper nitrate is dissolved in deionized water, and ultrasonic 1 hour, then by organic silicon-acrylate copolymerization breast
Liquid is dissolved in the deionized water containing copper nitrate, and with 5 hours of magnetic stirring apparatuses continuous stirring, prepares uniform, stable
Emulsion；In described uniform emulsion, the mass concentration of silicone acrylate emulsion is 31%, and the content of copper nitrate is breast
The 0.08% of liquid gross mass；The electrical conductivity of described emulsion is 0.1mS/cm, and surface tension is 20mN/cm；
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material 4 is fabric, receiving range is 10cm；
(3) open high-voltage DC power supply 2, voltage is adjusted to 110kV, the ambient temperature of electrostatic spraying is 15 DEG C, relatively wet
Spend for 40%, emulsion is sprayed onto on reception base material 4 with the jet velocity of 0.5mL/h, adjusts gas handling system 6, system of giving vent to anger 7 simultaneously
Between draught head, so that back draught with the speed of 10m/s, electrostatic spraying drop 5 is blown, make drop in electric field force, sky
Net is split into, prepared nanometer spider web is prevented under atmidometer, back draught resistance, electrostatic repulsion and capillary comprehensive function
The feature of water moisture permeable membrane is 100% for spider web area coverage, and average pore size is 20nm, and porosity is 80%.The nanometer spider obtaining
The water pressure resistance of net waterproof humidity-permeant film is 135kPa, and moisture-inhibiting flux is 16000g/m2/d.
Embodiment 14
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) sodium nitrate is added in deionized water, and ultrasonic 3 hours, then polyacrylate dispersion is dissolved in
In deionized water containing sodium nitrate, above-mentioned emulsion is placed in 8 hours of continuous stirring on magnetic stirring apparatuss, prepares uniformly, surely
Fixed emulsion；In described uniform emulsion, the mass concentration of polyacrylate dispersion is 36%, and the content of sodium nitrate is that emulsion is total
The 15% of quality, the electrical conductivity of described emulsion is 3.5mS/cm, and surface tension is 45mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is wire netting, receiving range is 15cm；
(3) open high voltage power supply, voltage is adjusted to 100kV, the ambient temperature of electrostatic spraying is 15 DEG C, and relative humidity is
90%, emulsion is sprayed onto on reception base material with the jet velocity of 2mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 95m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 60nm, and porosity is 85%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 123kPa, moisture-inhibiting flux is 15420g/m2/d.
Embodiment 15
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) sodium sulfite is added in deionized water, and ultrasonic 6 hours, then polystyrene emulsion is dissolved in
In deionized water containing sodium sulfite, above-mentioned emulsion is placed in 6 hours of continuous stirring on magnetic stirring apparatuss, prepare uniformly,
Stable emulsion；In described uniform emulsion, the mass concentration of polystyrene emulsion is 30%, and the content of sodium sulfite is emulsion
The 1% of gross mass, the electrical conductivity of described emulsion is 4.5mS/cm, and surface tension is 28mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is cellulose paper, receiving range is 50cm；
(3) open high voltage power supply, voltage is adjusted to 90kV, the ambient temperature of electrostatic spraying is 30 DEG C, and relative humidity is
50%, emulsion is sprayed onto on reception base material with the jet velocity of 6mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 60m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 100nm, and porosity is 90%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 125kPa, moisture-inhibiting flux is 15440g/m2/d.
Embodiment 16
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) calcium chloride, zinc chloride and iron chloride are added in a certain amount of deionized water, and ultrasonic 20 hours, then
Interpolymer latex of polystyrene and acrylic ester is dissolved in the deionized water of chloride containing calcium, zinc chloride and iron chloride, by above-mentioned emulsion
It is placed in 15 hours of continuous stirring on magnetic stirring apparatuss, prepare emulsion uniformly, stable；In described uniform emulsion, benzene second
The mass concentration of alkene-acrylate copolymer emulsion is 2%, and the content of calcium chloride, zinc chloride and iron chloride is emulsion gross mass
1.5%, the ratio of three's mixing is 1:2:4, the electrical conductivity of described emulsion is 6.5mS/cm, and surface tension is 20mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is aluminium foil, receiving range is 25cm；
(3) open high voltage power supply, voltage is adjusted to 86kV, the ambient temperature of electrostatic spraying is 20 DEG C, and relative humidity is
55%, emulsion is sprayed onto on reception base material with the jet velocity of 15mL/h, adjusts the draught head between inlet, outlet system simultaneously,
So that back draught with the speed of 23m/s, emulsion droplet is blown, make drop in electric field force, air drag, back draught resistance
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is under power, electrostatic repulsion and capillary comprehensive function
Spider web area coverage is 100%, and average pore size is 150nm, and porosity is 95%.Obtain nanometer spider web waterproof humidity-permeant film resistance to
Hydraulic pressure is 127kPa, and moisture-inhibiting flux is 15460g/m2/d.
Embodiment 17
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) extract the mix homogeneously emulsion of organic silicon emulsion and polyvinyl acetate emulsion；In this uniform emulsion, organosilicon
Mass concentration with polyvinyl acetate mixed emulsion is 20%, and both mixed proportions are 1:3, the electrical conductivity of described emulsion is
7.1mS/cm, surface tension is 36mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is cellulose paper, receiving range is 30cm；
(3) open high voltage power supply, voltage is adjusted to 75kV, the ambient temperature of electrostatic spraying is 22 DEG C, and relative humidity is
15%, emulsion is sprayed onto on reception base material with the jet velocity of 8mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 66m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 200nm, and porosity is 97%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 129kPa, moisture-inhibiting flux is 15640g/m2/d.
Embodiment 18
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) extract polyaminoester emulsion；In this emulsion, the mass concentration of polyaminoester emulsion is 15%, the conductance of described emulsion
Rate is 10mS/cm, and surface tension is 35mN/cm.
(2) use electrostatic spraying device injection shown in the drawings, first pass through liquid-supplying system and emulsion is filled in jet pipe, connect
Receipts base material is non-weaving cloth, and receiving range is 50cm；
(3) open high voltage power supply, voltage is adjusted to 50kV, the ambient temperature of electrostatic spraying is 25 DEG C, and relative humidity is
35%, emulsion is sprayed onto on reception base material with the jet velocity of 5mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 65m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 190nm, and porosity is 99%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 130kPa, moisture-inhibiting flux is 15680g/m2/d.
Embodiment 19
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) extract polyacrylate dispersion；In this emulsion, the mass concentration of polyacrylate dispersion is 40%, described breast
The electrical conductivity of liquid is 7mS/cm, and surface tension is 30mN/cm.
(2) use electrostatic spraying device injection shown in the drawings, first pass through liquid-supplying system and emulsion is filled in jet pipe, connect
Receipts base material is non-weaving cloth, and receiving range is 50cm；
(3) open high voltage power supply, voltage is adjusted to 76kV, the ambient temperature of electrostatic spraying is 25 DEG C, and relative humidity is
35%, emulsion is sprayed onto on reception base material with the jet velocity of 5mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 39m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 190nm, and porosity is 99%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 125kPa, moisture-inhibiting flux is 15880g/m2/d.
Embodiment 20
A kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, concretely comprises the following steps：
(1) extract the mix homogeneously emulsion of polystyrene emulsion, polylactic acid-caprolactone emulsion and polyvinyl acetate emulsion；
In this uniform emulsion, the mass concentration of organosilicon and polyvinyl acetate mixed emulsion is 20%, and both mixed proportions are 1:
2:3, the electrical conductivity of described emulsion is 7.5mS/cm, and surface tension is 36mN/cm.
(2) sprayed using electrostatic spraying casing 1 shown in the drawings, first pass through electrostatic spraying liquid-supplying system and injection syringe needle 3
Emulsion is filled in jet pipe, reception base material is cellulose paper, receiving range is 30cm；
(3) open high voltage power supply, voltage is adjusted to 56kV, the ambient temperature of electrostatic spraying is 22 DEG C, and relative humidity is
15%, emulsion is sprayed onto on reception base material with the jet velocity of 8mL/h, adjusts the draught head between inlet, outlet system simultaneously, make
Back draught is blown to emulsion droplet with the speed of 70m/s, make drop electric field force, air drag, back draught resistance,
Net is split into, the feature of prepared nanometer spider web waterproof humidity-permeant film is spider web under electrostatic repulsion and capillary comprehensive function
Area coverage is 100%, and average pore size is 200nm, and porosity is 97%.The water pressure resistance of the nanometer spider web waterproof humidity-permeant film obtaining
For 123kPa, moisture-inhibiting flux is 16020g/m2/d.
Claims (10)
1. a kind of preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film, is characterized in that：During electrostatic spraying, with reverse
Air-flow is blown to drop in the injection direction parallel to polymer emulsion drop, promote drop in the electric field flight when stress
Deformation forms liquid film, and then is separated, and forms nanometer spider web waterproof humidity-permeant film receiving substrate surface；Described nanometer spider web waterproof
Moisture permeable membrane is the two-dimension netted material with stable hexagonal meshes structure；The water pressure resistance of gained nanometer spider web waterproof humidity-permeant film >=
120kPa, moisture-inhibiting flux >=15000g/m2/d.
2. a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film according to claim 1 preparation method it is characterised in that
The property of described polymer emulsion：Mass concentration is 2～40%, and surface tension range is 10～50mN/m, and conductivity range is
0.05～10mS/cm.
3. a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film according to claim 1 preparation method it is characterised in that
The injection flow velocity of described back draught is 1～100m/s；When polymer emulsion surface tension is 10～25mN/m, back draught
Injecting velocity is 1～35m/s；When polymer emulsion surface tension be 26～35mN/m when, back draught injecting velocity be 36～
65m/s；When polymer emulsion surface tension is 36～50mN/m, back draught injecting velocity is 66～100m/s.
4. a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film according to claim 1 preparation method it is characterised in that
Described polymer emulsion is straight polymer emulsion or the polymer emulsion containing at least one inorganic salt.
5. a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film according to claim 4 preparation method it is characterised in that
Described straight polymer emulsion is polyaminoester emulsion, polyacrylate dispersion, organic silicon emulsion, polystyrene emulsion, poly-vinegar acid second
Alkene emulsion, polylactic acid-caprolactone emulsion, polylactic acid-polyethylene glycol oxide emulsion, polyurethane acrylic emulsion copolymerization emulsion, benzene second
One of alkene-acrylate copolymer emulsion, vinyl acetate-acrylic copolymer emulsion, Silicone-Acrylic Copolymer Emulsion
Or arbitrarily several combinations.
6. a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film according to claim 4 preparation method it is characterised in that
The described polymer emulsion containing at least one inorganic salt is the mixture of inorganic salt and straight polymer emulsion, described inorganic salt
For calcium chloride, lithium chloride, potassium chloride, sodium chloride, iron chloride, zinc chloride, barium chloride, magnesium chloride, sodium carbonate, sodium bicarbonate, carbon
Any one or a few mixture in sour potassium, silver nitrate, copper nitrate, sodium nitrate, sodium sulfite and lithium bromide.
7. a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film according to claim 6 preparation method it is characterised in that
The addition of described inorganic salt is the 0.01～15% of described polymer emulsion gross mass；Configuration process：First inorganic salt is added
To in deionized water, and ultrasonic 1～20 hour, then straight polymer emulsion is added thereto, and with magnetic stirring apparatuses even
Continuous stirring 5～24 hours, prepares uniformly and stable emulsion.
8. a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film according to claim 1 preparation method it is characterised in that
The voltage of described electrostatic spraying process is 50～120kV, and receiving range is 10～50cm, and rate of flooding is 0.1～15mL/h, temperature
15～30 DEG C of degree, relative humidity 15～90%；When polymer emulsion electrical conductivity be 0.05～4.0mS/cm when, voltage be 96～
120kV；When polymer emulsion electrical conductivity is 4.1～7.0mS/cm, voltage is 76～95kV；When polymer emulsion electrical conductivity is
During 7.1～10.0mS/cm, voltage is 50～75kV.
9. a kind of electrostatic spraying nanometer spider web waterproof humidity-permeant film according to claim 1 preparation method it is characterised in that
Described reception base material is fabric, wire netting, cellulose paper or aluminium foil.
10. a kind of nanometer obtained by preparation method of electrostatic spraying nanometer spider web waterproof humidity-permeant film as claimed in claim 1
Spider web waterproof humidity-permeant film, is characterized in that：Described nanometer spider web waterproof humidity-permeant film is the two dimension with stable hexagonal meshes structure
Web materials, spider web area coverage is 100%, and structural intergrity is good, and average pore size is 10～200nm, porosity of=80%, institute
Obtain the water pressure resistance >=120kPa of nanometer spider web waterproof humidity-permeant film, moisture-inhibiting flux >=15000g/m2/d.
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| CN107469631B (en) * | 2017-08-01 | 2019-11-08 | 东华大学 | Two-dimension netted superfine nanofiber composite fluid filtering material of one kind and preparation method thereof |
| CN107354587B (en) * | 2017-08-01 | 2019-12-31 | 东华大学 | Two-dimensional net-shaped superfine nanofiber material for air filtration and preparation method thereof |
| CN110891445B (en) * | 2018-06-21 | 2020-12-29 | 日本全信株式会社 | Laminated fabric for clothing and method for producing laminated fabric for clothing |
| CN109295507B (en) * | 2018-09-29 | 2020-01-14 | 福建歌士玮集团有限公司 | Preparation method of antibacterial, waterproof and moisture permeable electrospun nano composite material |
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| JP5009100B2 (en) * | 2007-08-31 | 2012-08-22 | 日本バイリーン株式会社 | Extra fine fiber nonwoven fabric, method for producing the same, and apparatus for producing the same |
| CN101929035B (en) * | 2009-06-24 | 2011-11-16 | 中国科学院理化技术研究所 | Warp-weft directional electrostatic spinning film-preparing device and application method thereof |
| JP2011127234A (en) * | 2009-12-15 | 2011-06-30 | Nanofactory Japan Co Ltd | Method for producing nanofiber |
| KR20120008230A (en) * | 2010-07-16 | 2012-01-30 | (주)엠엔에스 | Apparatus for production of ultrafine fiber with a nozzle having an electric insulating plate |
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| CZ2012834A3 (en) * | 2012-11-23 | 2013-11-06 | Nafigate Corporation, A.S. | Method of producing nanofibers by electrostatic spinning of polymer solution or polymer melt and apparatus for making the same |
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