CN107019958A - A kind of conducting filtration material and its production method - Google Patents
A kind of conducting filtration material and its production method Download PDFInfo
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- CN107019958A CN107019958A CN201610072283.XA CN201610072283A CN107019958A CN 107019958 A CN107019958 A CN 107019958A CN 201610072283 A CN201610072283 A CN 201610072283A CN 107019958 A CN107019958 A CN 107019958A
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- woven fabrics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/009—Condensation or reaction polymers
- D04H3/011—Polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0654—Support layers
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Filtering Materials (AREA)
Abstract
The present invention discloses a kind of conducting filtration material and its production method, the conducting filtration material is made up of spun-bonded non-woven fabrics fid layer, middle conductive black layer, polytetrafluoroethylporous porous membrane layer, the one side of the spun-bonded non-woven fabrics fid layer has been hair side, and it is air effluent face layer that this, which plays hair side, the polytetrafluoroethylporous porous membrane layer flows into surface layer for air, and the fiber breakpoint number average value for playing hair side of the spun-bonded non-woven fabrics fid layer is 106~108Individual/m2.The conducting filtration material of the present invention has the characteristics of air permeability is high, arresting efficiency is high, crushing is low, can be applied to antistatic gas filtration field, such as painting dressing automobiles, building materials application, Hardware fitting powder body coating line.
Description
Technical field
The present invention relates to a kind of conducting filtration material and its production method.
Background technology
The conduction being made up of polytetrafluoroethylene film, conductive black layer and spun-bonded non-woven fabrics supporting layer is used in the market
Filtering material is applied in noble and unsullied production environment as filter, the filter, such as the spraying of Automobile paint and hardware building materials
Application etc., so that dust and electrostatic produced by filtering out workshop.However, spun-bonded non-woven fabrics are used as conducting filtration material
Supporting layer, although the firm softness needed for conducting filtration material can be ensured, but the air permeability of spun-bonded non-woven fabrics compares polytetrafluoroethyl-ne
Alkene perforated membrane it is low, and after overlay film formed conducting filtration material air permeability substantially reduce, so cause final conduction
Filtering material crushing is larger.
Therefore, in order to solve in the problem, current art to have by being embossed filtering material processing, and lead to
Cross the height of control embossing boss to regulate and control the air permeability of filtering material, and then adjust the operation crushing of filtrate.Pass through pressure
Although flower working process can reach the purpose of the air permeability of reduction operation crushing and increase filtering material, filtering material is caught
Collection efficiency is but significantly reduced.
As disclosed air filtration equipment by setting multiple pressures to surface of filter medium in Chinese publication CN103857455
Flower protruding part, in the case where not increasing air filter unit weight, suppresses the pressure loss of air filter unit.This is special
The purpose that reduction operating pressure loses has been reached by changing the height of filtering material embossed surface protruding part in profit, but
Reduce the arresting efficiency of filtering material.
And for example publication US005527569A discloses a kind of conducting filtration material, the conducting filtration material by spunbond without
Spin layer of cloth, metal conducting layer and conductive polytetrafluoroethylene floor to constitute, because metal conducting layer has selected metal or metal oxygen
Compound is used as main conductive medium, although can improve the antistatic property of conducting filtration material, but improves conducting filtration
The production cost of material, and conducting filtration material after use contains metal or metal oxide, is unfavorable for reclaiming reprocessing.
The content of the invention
Present invention aims at provide the conducting filtration material that a kind of air permeability is high, arresting efficiency is high, crushing is low.
Another object of the present invention is to provide, a kind of technique is simple, cost is low, the life of the conducting filtration material of province's energy
Production method.
The technical solution of the present invention is as follows：The conducting filtration material of the present invention be by spun-bonded non-woven fabrics fids layer,
Middle conductive black layer, polytetrafluoroethylporous porous membrane layer are constituted, and the one side of the spun-bonded non-woven fabrics fid layer has been hair side,
And it is air effluent face layer that this, which plays hair side, the polytetrafluoroethylporous porous membrane layer flows into surface layer, the spun-bonded non-woven fabrics for air
The fiber breakpoint number average value for playing hair side of fid layer is 106~108Individual/m2。
The fluffing for playing hair side of spun-bonded non-woven fabrics fid layer is highly 200~800 μ in the conducting filtration material of the present invention
m。
In the conducting filtration material of the present invention spun-bonded non-woven fabrics fids layer rise hair side section thickness increment rate be 2.0~
8.0%。
The warp-wise confficient of static friction that plays hair side of the spunbond without anti-cloth fid layer is in the conducting filtration material of the present invention
0.700~1.000, broadwise confficient of static friction is 0.900~1.100.
The warp-wise coefficient of kinetic friction for playing hair side of spun-bonded non-woven fabrics fid layer is in the conducting filtration material of the present invention
0.400~0.600, the broadwise coefficient of kinetic friction is 0.500~0.700.
Spun-bonded non-woven fabrics fid layer is made up of Nonwoven Cloth of Long Polyester Fibres in the conducting filtration material of the present invention.
Under pressure 125Pa, in conducting filtration material of the invention the air permeability of spun-bonded non-woven fabrics supporting layer be 12.0~
18.0cm3/cm2/s。
The grammes per square metre of spun-bonded non-woven fabrics fid layer is 200~300g/m in the conducting filtration material of the present invention2。
Under pressure 125Pa, the air permeability of conducting filtration material of the invention is 8.8~11.2cm3/cm2/s。
The beneficial effects of the invention are as follows：The conducting filtration material of the present invention solves conventional conducting filtration material gas permeable degree
It is low, the problem of arresting efficiency is low, and the present invention using the spun-bonded non-woven fabrics of fluffing is used as conducting filtration material due to air effluent face
Supporting layer, the air of material flow into face and are used as the filter layer of conducting filtration material, obtained conductive mistake using Teflon membranes
Filter material material has the characteristics of air permeability is high, arresting efficiency is high, crushing is low.The conducting filtration material of the present invention can be applied to antistatic
Gas filtration field, such as painting dressing automobiles, building materials application, Hardware fitting powder body coating line.
Embodiment
The conducting filtration material of the present invention is by spun-bonded non-woven fabrics fid layer, middle conductive black layer, polytetrafluoroethylene (PTFE)
What porous membrane layer was constituted, the one side of the spun-bonded non-woven fabrics fid layer has been hair side, and it is air effluent face layer that this, which plays hair side,
The polytetrafluoroethylporous porous membrane layer flows into surface layer, the fiber breakpoint for playing hair side of the spun-bonded non-woven fabrics fid layer for air
Number average value is 106~108Individual/m2.Compared with needle punched non-woven fabrics, spunlace non-woven cloth, melt spraying non-woven fabrics and woven fabric, due to spinning
Bonded non-woven fabrics have a higher firm softness, thus can as conducting filtration material of the present invention supporting layer, and spun-bonded non-woven fabrics
Advantage relative to chemical adhesion non-woven fabrics is that chemical adhesion non-woven fabrics introduces chemical adhesive, in the process of actual use
Middle chemical adhesive such as may go bad, come off at the phenomenon, the filter efficiency and service life of the overall filtrate of influence.The present invention
One side to spun-bonded non-woven fabrics carries out fluffing processing, the air permeability increase of spun-bonded non-woven fabrics after fluffing processing, and reason is by rising
After hair processing, the PFY for constituting spun-bonded non-woven fabrics is broken, the complexing reduction between PFY, so as to reduce
The resistance of filtrate, the air permeability of spun-bonded non-woven fabrics will increase, so that the air permeability increase of overall conducting filtration material.
The present invention plays hair side as air effluent face from spun-bonded non-woven fabrics, if regarding non-hair side of spun-bonded non-woven fabrics as air
If effluent face, then the hair side that rises for the spun-bonded non-woven fabrics that are bound to is fitted with PTFE film, now, due to spun-bonded non-woven fabrics table after fluffing
Face is coarse, influences the compactness of PTFE film；On the other hand, tiny conductive black particle will be blocked between fluffing fracture fiber
Space, the air permeability of spun-bonded non-woven fabrics is diminished, reduce the fluffing processing effect of spun-bonded non-woven fabrics.Therefore, the present invention will
The hair side that rises of spun-bonded non-woven fabrics is used as air effluent face.
Because conductive black particle diameter is small, Stability Analysis of Structures, chemical composition is single, and specific surface area is big and porosity is high, also has
Excellent resistive performance, can assign product conduction or antistatic property.Therefore, conductive black is incorporated into conducting filtration by the present invention
In the intermediate layer of material, so not only make conducting filtration material that there is excellent antistatic property, and the hole of conductive black
It is smaller that rate makes the air permeability of monolithic conductive filtering material reduce amplitude to a certain extent.
The polytetrafluoroethylporous porous film of the present invention has that ultra-thin light weight, membrane pore structure are uniform and stable, porosity is high, resistance
It is small, the advantages of filter efficiency is high, and polytetrafluoroethylene (PTFE) has that inoxidizability is strong, heat endurance is high, hydrophobicity good and flame retardancy
Excellent feature.And polytetrafluoroethylporous porous membrane is a kind of gas separation membrane material of function admirable, therefore by polytetrafluoroethylene (PTFE)
Porous membrane layer can improve the strainability of conducting filtration material as air filtration surface layer.
The fiber breakpoint number average value for playing hair side of spun-bonded non-woven fabrics fid layer is 10 in conducting filtration material of the present invention6
~108Individual/m2.Here the fiber breakpoint number for playing hair side has referred to the breakpoint sum of fiber in the unit area of hair side.If spun
The fiber breakpoint number average value for playing hair side of bonded non-woven fabrics fid layer is less than 106Individual/m2If, illustrate after fluffing processing, constitute
The PFYs of spun-bonded non-woven fabrics not being broken fully, the complexing between PFY be also wound around it is relatively good,
So the air permeability of spun-bonded non-woven fabrics is with regard to step-down；If the fiber breakpoint number average value for playing hair side of spun-bonded non-woven fabrics fid layer
Less than 108Individual/m2If, that is, the PFY number of fracture for constituting spun-bonded non-woven fabrics increases, although the air permeability meeting of spun-bonded non-woven fabrics
Increase, but the firm softness and intensity decreases of spun-bonded non-woven fabrics will certainly be caused, so as to reduce the use of conducting filtration material
Life-span.Air permeability and firm softness and intensity in view of conducting filtration material, a hair side for spun-bonded non-woven fabrics fid layer
Fiber breakpoint number average value preferably 9.6 × 106~6.7 × 107Individual/m2。
The fluffing for playing hair side of spun-bonded non-woven fabrics fid layer is highly 200~800 μ in the conducting filtration material of the present invention
m.Here fluffing height has referred to the vertical length for playing wool fibre breakpoint and a hair side of hair side.If spun-bonded non-woven fabrics are supported
The fluffing for the playing hair side height of material layer is too low, then the complexing constituted between the PFY of spun-bonded non-woven fabrics is still good,
The air permeability of so spun-bonded non-woven fabrics does not reach the effect of increase；If the fluffing for playing hair side of spun-bonded non-woven fabrics fid layer is high
Du Taigao, then hair side fibre shedding will have been caused in actual use deashing, so as to influence the use of conducting filtration material
Life-span.
In the conducting filtration material of the present invention after the fluffing of spun-bonded non-woven fabrics fids layer thickness increment rate be 2.0~
8.0%.Because spun-bonded non-woven fabrics are after fluffing processing, thickness, which has, to be accordingly increased.Here thickness increment rate after fluffing=
(thickness after fluffing processing-thickness for processing of not fluffing)/and do not fluff processing thickness × 100%.After the fluffing of spun-bonded non-woven fabrics
Thickness increment rate is highly relevant with playing wool fibre breakpoint number and fluffing, if thickness increment rate is too low, plays wool fibre breakpoint number
It is few, and it is highly low to fluff, then and the complexing constituted between the PFY of spun-bonded non-woven fabrics is still good, and this just makes spunbond
Non-woven fabrics does not reach the effect of air permeability increase；If it is too high to play gross thickness increment rate, i.e., wool fibre breakpoint is increased simultaneously
Number and fluffing height, this reduces the intensity of spun-bonded non-woven fabrics and firm softness, so as to reduce the use longevity of spun-bonded non-woven fabrics
Life.
The warp-wise confficient of static friction that plays hair side of the spunbond without anti-cloth fid layer is in the conducting filtration material of the present invention
0.700~1.000, broadwise confficient of static friction is 0.900~1.100.If the warp that plays hair side of the spunbond without anti-cloth fid layer
To confficient of static friction it is excessive if, then spun-bonded non-woven fabrics rise hair side fiber breakpoint number it is more, fibre pick height it is higher, it is so right
The damage of spun-bonded non-woven fabrics is excessive, and this reduces the service life of spun-bonded non-woven fabrics；If spunbond is without anti-cloth fid layer
Rise hair side warp-wise confficient of static friction it is too small if, then spun-bonded non-woven fabrics rise hair side breakpoint number it is few and fluff it is highly low, spunbond without
The air permeability for spinning cloth does not reach the effect of increase.
The warp-wise coefficient of kinetic friction for playing hair side of spun-bonded non-woven fabrics fid layer is in the conducting filtration material of the present invention
0.400~0.600, the broadwise coefficient of kinetic friction is 0.500~0.700.Spun-bonded non-woven fabrics play the numerical value of the coefficient of kinetic friction of hair side
Size and confficient of static friction numerical value are proportional, and coefficient of static friction values is big, and corresponding coefficient of kinetic friction value is also bigger than normal；Confficient of static friction
Value is small, and corresponding coefficient of static friction values is also less than normal.
Spun-bonded non-woven fabrics fid layer is made up of Nonwoven Cloth of Long Polyester Fibres in the conducting filtration material of the present invention.Due to poly-
Ester has good mechanical property, and folding resistance is good, and polyester has the characteristics such as oil resistant, resistance to fat, acid and alkali-resistance so that gas and
Vapor permeability is low, and polyester also has excellent resistant of high or low temperature in addition, using spun-bonded non-woven fabrics branch made from PFY
Timbering can be used for a long time in 120 DEG C of temperature ranges, and short-period used is resistant to 150 DEG C of high temperature, be resistant to -70 DEG C of low temperature, and no matter
Under high temperature, very little still is influenceed on its mechanical performance at low temperature.
Spun-bonded non-woven fabrics fid is laminated by fluffing processing in the present invention, the spun-bonded non-woven fabrics support after fluffing processing
The air permeability of material layer is bigger than the air permeability without fluffing processing, and fluffing processing stage determines spun-bonded non-woven fabrics fid layer
Air permeability, although the degree of fluffing processing can increase air permeability greatly, can reduce the firm softness of spun-bonded non-woven fabrics fid,
Eventually influence the service life of spun-bonded non-woven fabrics；Then, fluffing processing stage is low, does not reach the function of increase air permeability, no
Meet the target designed and developed.Therefore, under pressure 125Pa, spun-bonded non-woven fabrics supporting layer in conducting filtration material of the invention
Air permeability be preferably 12.0~18.0cm3/cm2/s。
The grammes per square metre of spun-bonded non-woven fabrics fid layer is 200~300g/m in the conducting filtration material of the present invention2.If spunbond
If the grammes per square metre of non-woven fabrics fid layer is too high, the production cost of conducting filtration material can be increased, and make conducting filtration material
Firm softness increase, be unfavorable for discounting, the assembling in later stage etc. process；If the grammes per square metre of spun-bonded non-woven fabrics fid layer is too low
Words, the firm softness of conducting filtration material will be reduced, so that cause conducting filtration material to be damaged when deashing is inversely blown greatly, and then
It has impact on the service life of conducting filtration material.
The thickness of spun-bonded non-woven fabrics fid layer of the present invention is between 0.39~0.78mm, if spun-bonded non-woven fabrics fid
If the thickness of layer is excessively thin, fitted more closely between fiber in spun-bonded non-woven fabrics, air permeability is low；If spun-bonded non-woven fabrics fid
Fit between fiber loose, spun-bonded non-woven fabrics are supported if the thickness of layer is blocked up, in spun-bonded non-woven fabrics during reverse deashing injection
Layer damage is big.
The carbon black pellet particle diameter of conductive black layer of the present invention is 5~10 μm, if the particle diameter of conductive black particle is bigger, is spun
Space in bonded non-woven fabrics between fiber and fiber is more easily plugged, the air permeability of spun-bonded non-woven fabrics fids layer drastically under
Drop, causes the air permeability reduction of final obtained conducting filtration material；And the conductive black layer surface out-of-flatness formed, with gathering
Make PolytetrafluoroethylFilm Film tension force uneven during tetrafluoroethene is film adhered, cause to reduce poly- four during use
The service life of PVF；If the particle diameter of conductive black particle is smaller, in conductive process, carbon black conductive fluid can not be very
Disperse well, conductive black particle will be agglomerated together, so as to not only make the Surface Machining of spun-bonded non-woven fabrics fid layer not
Uniformly, and because the spun-bonded non-woven fabrics support surface with carbon black pellet is uneven, to follow-up polytetrafluoroethylstephanoporate stephanoporate
The Compound Machining of film will also result in certain influence, and the particles filled fiber in spun-bonded non-woven fabrics of conductive black condensed with
In space between fiber, again such that the air permeability of spun-bonded non-woven fabrics fid layer drastically declines, the filter material in deduster
Resistance is very high, and crushing is very big.
The carbon black pellet adhesion amount of conductive black layer is 6~10g/m in the present invention2If, conductive black particle adhesion amount
More than 10g/m2If, although the electric conductivity of conducting filtration material can be improved, but be the increase in conductive black layer thickness,
Influence the air permeability of conducting filtration material；If conductive black particle adhesion amount is less than 6g/m2If, the thickness of conductive black layer
Reduction, electric conductivity reduction.In view of the electric conductivity and air permeability of conducting filtration material, the carbon black pellet of conductive black layer is attached
The amount of wearing is preferably 7~9g/m2。
Poly tetrafluoroethylene is under pressure 125Pa in the present invention, and air permeability is 15.0~30.0cm3/cm2/s.If poly- four
The air permeability of fluoride porous film is excessive, although can improve the air permeability of conducting filtration material, but conducting filtration material is caught
Collection efficiency can be reduced；If the air permeability of polytetrafluoroethylporous porous membrane is too low, although the filtering of conducting filtration material can be improved
Efficiency, but the air permeability of conducting filtration material is reduced, and improve the operation crushing of conducting filtration material.In view of conduction
The air permeability of filtering material, filter efficiency and operation crushing, the air permeability preferably 18.0 of polytetrafluoroethylporous porous membrane~
25.0cm3/cm2/s。
Under pressure 125Pa, the air permeability of conducting filtration material of the invention is 8.8~13.2cm3/cm2/s.Such as Tab phenolphthaleinum
If the air permeability of electric filter material is too high, although operation crushing can be reduced, but at the same time also reduce conducting filtration material
The arresting efficiency of material；If the air permeability of conducting filtration material is too low, although filter efficiency can be improved, but improved
The operation crushing of filter material material.
The production method of conducting filtration material, comprises the following steps in the present invention：
（1）The preparation of conductive supporting material：By particle size is 5~10 μm of conductive black particle dispersion spraying, printing or soaks
Stain in spun-bonded non-woven fabrics fids layer it is non-on hair side, then dried in 120~160 DEG C of baking ovens, be made conductive and prop up
Timbering；
（2）The preparation of conducting filtration material：One side and polytetrafluoroethylene (PTFE) in conductive supporting material with conductive black particle is more
Pore membrane temperature be 150~280 DEG C, pressure be to carry out hot pressing under 0.1~0.25MPa, 10~30m/min of linear velocity to be combined, most
Whole finished product.
Above-mentioned steps（1）Described in carbon black pellet dispersion liquid in, it is necessary to add the adhesive and dispersant necessarily matched,
Its object is to conductive black dispersion liquid uniform conduction can be formed when spraying, printing or being impregnated in spun-bonded non-woven fabrics surface
Silica aerogel layer, and make it that the carbon black pellet of conductive black layer is difficult for drop-off.Drying temperature is between 120~160 DEG C, main to consider
Decentralized medium to conductive black dispersion liquid is water, and drying temperature should be higher than that 100 DEG C, but if drying temperature is too high, can make
Core sheath fibers shape in spun-bonded non-woven fabrics changes, and causes the reduction of conductive support layer air permeability, it is contemplated that core sheath fibers shape
Shape do not change and conductive support layer air permeability, preferably 130~150 DEG C of above-mentioned conductive support layer drying temperature.
Step（1）In fluffing processing is carried out to the one sides of spun-bonded non-woven fabrics, the method for fluffing processing is by spun-bonded non-woven fabrics
At the uniform velocity in feeding raising machine, by controlling pan feeding speed and hooking thorn contact strength with draw point or bur, obtain one side of the invention and rise
The spun-bonded non-woven fabrics of hair.
Above-mentioned steps（2）One side and polytetrafluoroethylporous porous membrane in the middle material by conductive supporting with conductive black particle
Temperature be 150~280 DEG C, pressure be to carry out hot pressing under 0.1~0.25MPa, 10~30m/min of speed to be combined.If compound
Temperature is less than if 150 DEG C, does not reach PTFE film and is combined required energy so that the laminating fastness of final PTFE film is low, leads
The service life of monolithic conductive filtering material is caused to reduce；If combined temp is higher than 280 DEG C, it can cause in recombination process
The core sheath fibers flattening of spun-bonded non-woven fabrics layer in conductive support layer, finally making the air permeability of conducting filtration material reduces.Consider
The factors such as service life and air permeability to conducting filtration material, preferably 180~230 DEG C of combined temp.Above-mentioned composite pressure
Why 0.1~0.25MPa is selected, be because if composite pressure is less than 0.1MPa so that the patch of polytetrafluoroethylporous porous membrane
Fastness reduction is closed, does not reach the requirement used；If composite pressure is higher than 0.25MPa, in the compound of polytetrafluoroethylporous porous membrane
During, due to the hypertonia of polytetrafluoroethylporous porous membrane, it may occur that the probability increase of rupture, production efficiency reduction.Consider
To the laminating fastness and the factor, pressure preferably 0.12~0.2MPa such as qualification rate of composite finished product of polytetrafluoroethylporous porous membrane.
Why the recombination velocity of above-mentioned polytetrafluoroethylporous porous membrane selects 10~30m/min, is because recombination velocity is less than 10m/
Min, not only top and bottom rolls action time increases in low production efficiency, and recombination process so that spun-bonded non-woven fabrics fiber deformation
Possibility increase；If recombination velocity is more than 30m/min, the compound fastness of polytetrafluoroethylporous porous membrane can be so caused to drop
It is low, so as to reduce the service life of conducting filtration material.
The present invention is explained in more detail below by embodiment, but the present invention is not restricted by the embodiments, this hair
The assay method of bright each physical property of conducting filtration material is as follows.
【Grammes per square metre】
Filtering filtrate is cut into 20cm × 20cm square dice, the unit area gram of the filtering filtrate is calculated from weight
Weight, average measurement 3 times, final result takes the average value of 3 times.
【Air permeability】
Based on ISL1096 measurement standards, using frazier type fabric breathability method of testing, the air permeability of the filtrate is measured, is surveyed
Amount position is randomly selected 10 points and is measured, results averaged.
【Coefficient of friction】
Using measuring method B specified in FZ/T01054-2012 standards, tester is the coefficient of friction of Japanese INTEC productions
Device is determined, the abrasive material that test is selected is meets cotton patch lining cloth as defined in GB/T7568.2, using the cotton patch lining cloth through always
Friction testing is carried out, cotton patch lining cloth tests replacing once every time.The warp-wise of sample and the PVvalue testing of broadwise are surveyed respectively
Examination 3 times, coefficient of friction result takes the average value of 3 times.
【Breakpoint number】
Use SEM（SEM）Shoot spun-bonded non-woven fabrics plays hair side, and the length of shooting figure panel region is indicated during shooting
And width, and the number for shooting fiber breakpoint in picture region is correctly calculated, shoot 10 times, the result of final breakpoint number takes 10
Secondary average value.Its computational methods is as follows：
The number of fiber breakpoint number=shooting picture point of interruption/（Shoot the width of length × shooting picture of picture）, the unit of breakpoint number
For individual/m2。
【Fluffing height】
Fluffing height has referred to the vertical length for playing wool fibre breakpoint and a hair side of hair side.Height of fluffing is by scanning electron
Obtained by being measured microscopically, survey 10 times, results averaged.
【Thickness increment rate】
Thickness d 1 of the spun-bonded non-woven fabrics without fluffing processing is measured by SEM, then measured after fluffing processing
The thickness d 2 of spun-bonded non-woven fabrics, the computational methods of the thickness increment rate of the spun-bonded non-woven fabrics are as follows：
Thickness increment rate=(d2-d1)/d1 × 100%.
【Remaining crushing】
After VDI 3926 determination experiment, the residual pressure loss of test filtering filtrate.
【VDI3926 arresting efficiency ＆ exit concentrations】
The performance of standard test filtering material based on VDI3926, the size of laboratory sample is a diameter of 150mm.The powder of feeding
Dust concentration is in 5.0 ± 0.5g/m3, filtration velocity is 2m/min（Air quantity 1.85m3/h）.Experimental sequence is 30 times+stabilisation at initial stage
5000 times+last 30 times.Initial stage, the method for 30 times and last 30 times was：With the extension of run time, filtering material two sides
Pressure difference can be raised gradually, when pressure difference reaches 1000Pa, and pulse of air carries out deashing, Ran Houjin to the dust on filtering material surface
The next process of row, the process repeats 30 times, and experimental period is recorded during experiment（t/s）With the change of pressure,
The dust weight M through filtering material is weighed simultaneously（g）.Stabilization procedures refer to during operation, using 5s as between the time
Every carrying out deashing to filtering material, deashing pressure is 5bar, and deashing number of times is 5000 times.
The weight M/ (1.85 × time t/3600) of dust concentration C=transmission filtering material dust is exported, dust concentration is exported
C unit is g/m3；
Arresting efficiency=(1- exports dust concentration C/5) × 100%.
【Sheet resistance】
Provided to determine the sheet resistance of conductive material according to DIN94345, clip 120mm × 120mm each 5 pieces of sample is surveyed
Averaged after fixed.
Embodiment 1
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
It is 1.0 × 10 to spin cloth and play the fiber breakpoint number of hair side6Individual/m2, fluffing height be 800 μm, section thickness increment rate be 6.8%, survey
The warp-wise confficient of static friction for obtaining spunbond polyester non-woven fabrics hair side is that 0.700, broadwise confficient of static friction is that 0.900, warp-wise is moved
Coefficient of friction is that 0.400, the broadwise coefficient of kinetic friction is 0.500, grammes per square metre 200g/m2, air permeability 13.9cm3/cm2/s；
（2）The preparation of conductive supporting material：It is 10 μm of conductive black particle, acrylic resin and pure water with weight by particle size
Than for 17：3：Homogeneous dispersion is sprayed at step by 80 proportions into conductive black dispersion liquid（1）In obtained spunbond
To be then 10g/m with content on non-hair side of non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length and be
Conductive supporting material is made in 120 DEG C of baking oven, to be dried with 12m/min speed in 24m, temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 15.0cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane temperature be 200 DEG C, pressure be that 150KPa, linear velocity are
Heat lamination is carried out under 10m/min makes its integration, and finally obtained thickness is that 0.43mm, grammes per square metre are 210g/m2, air permeability be
8.8cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is played to hair side as air effluent face layer, polytetrafluoro
Ethene porous membrane layer is that air flows into surface layer, evaluates the conducting filtration material of the present invention, its each physical property is referring to table 1.
Embodiment 2
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
Spin the fiber breakpoint number 5.2 × 10 that cloth plays hair side6Individual/m2, fluffing height be 476 μm, section thickness increment rate be 2.0%, measure
The warp-wise confficient of static friction that spunbond polyester non-woven fabrics plays hair side is that to be that 0.923, warp-wise is dynamic rub 0.788, broadwise confficient of static friction
It is that 0.486, the broadwise coefficient of kinetic friction is 0.583, grammes per square metre 300g/m to wipe coefficient2, air permeability 12.0cm3/cm2/s；
（2）The preparation of conductive supporting material：It is 5 μm of conductive black particle, acrylic resin and pure water with weight by particle size
Than for 17：3：Homogeneous dispersion is sprayed at step by 80 proportions into conductive black dispersion liquid（1）In obtained spunbond
To be then 6g/m with content on non-hair side of non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length and be
Conductive supporting material is made in 130 DEG C of baking oven, to be dried with 12m/min speed in 24m, temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 20.9cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane temperature be 200 DEG C, pressure be that 150KPa, linear velocity are
Heat lamination is carried out under 10m/min makes its integration, and finally obtained thickness is that 0.65mm, grammes per square metre are 306g/m2, air permeability be
9.2cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is played to hair side as air effluent face layer, polytetrafluoro
Ethene porous membrane layer is that air flows into surface layer, evaluates the conducting filtration material of the present invention, its each physical property is referring to table 1.
Embodiment 3
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
Spin the fiber breakpoint number 9.6 × 10 that cloth plays hair side6Individual/m2, fluffing height be 523 μm, section thickness increment rate be 6.5%, measure
The warp-wise confficient of static friction that spunbond polyester non-woven fabrics plays hair side is that to be that 0.956, warp-wise is dynamic rub 0.853, broadwise confficient of static friction
It is that 0.462, the broadwise coefficient of kinetic friction is 0.621, grammes per square metre 240g/m to wipe coefficient2, air permeability 15.6cm3/cm2/s；
（2）The preparation of conductive supporting material：It is 8 μm of conductive black particle, acrylic resin and pure water with weight by particle size
Than for 17：3：Homogeneous dispersion is sprayed at step by 80 proportions into conductive black dispersion liquid（1）In obtained spunbond
To be then 7g/m with content on non-hair side of non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length and be
Conductive supporting material is made in 140 DEG C of baking oven, to be dried with 12m/min speed in 24m, temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 27.6cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane temperature be 200 DEG C, pressure be that 150KPa, linear velocity are
Heat lamination is carried out under 10m/min makes its integration, and finally obtained thickness is that 0.49mm, grammes per square metre are 247g/m2, air permeability be
9.6cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is played to hair side as air effluent face layer, polytetrafluoro
Ethene porous membrane layer is that air flows into surface layer, evaluates the conducting filtration material of the present invention, its each physical property is referring to table 1.
Embodiment 4
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
Spin the fiber breakpoint number 2.3 × 10 that cloth plays hair side7Individual/m2, fluffing height be 660 μm, section thickness increment rate be 7.6%, measure
The warp-wise confficient of static friction that spunbond polyester non-woven fabrics plays hair side is that to be that 0.988, warp-wise is dynamic rub 0.936, broadwise confficient of static friction
It is that 0.523, the broadwise coefficient of kinetic friction is 0.672, grammes per square metre 260g/m to wipe coefficient2, air permeability 16.2cm3/cm2/s；
（2）The preparation of conductive supporting material：It is 7 μm of conductive black particle, acrylic resin and pure water with weight by particle size
Than for 17：3：Homogeneous dispersion is sprayed at step by 80 proportions into conductive black dispersion liquid（1）In obtained spunbond
To be then 8g/m with content on non-hair side of non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length and be
Conductive supporting material is made in 140 DEG C of baking oven, to be dried with 12m/min speed in 24m, temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 22.6cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane temperature be 200 DEG C, pressure be that 150KPa, linear velocity are
Heat lamination is carried out under 10m/min makes its integration, and finally obtained thickness is that 0.51mm, grammes per square metre are 268g/m2, air permeability be
10.2cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is played to hair side as air effluent face layer, poly- four
Fluoride porous film layer flows into surface layer for air, evaluates the conducting filtration material of the present invention, its each physical property is referring to table 1.
Embodiment 5
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
Spin the fiber breakpoint number 6.7 × 10 that cloth plays hair side7Individual/m2, fluffing height be 436 μm, section thickness increment rate be 4.3%, measure
The warp-wise confficient of static friction that spunbond polyester non-woven fabrics plays hair side is that to be that 1.068, warp-wise is dynamic rub 0.872, broadwise confficient of static friction
It is that 0.579, the broadwise coefficient of kinetic friction is 0.636, grammes per square metre 260g/m to wipe coefficient2, air permeability 17.6cm3/cm2/s；
（2）The preparation of conductive supporting material：It is 8 μm of conductive black particle, acrylic resin and pure water with weight by particle size
Than for 17：3：Homogeneous dispersion is printed in step by 80 proportions into conductive black dispersion liquid（1）In obtained spunbond
To be then 8g/m with content on non-hair side of non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length and be
Conductive supporting material is made in 140 DEG C of baking oven, to be dried with 12m/min speed in 24m, temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 25.5cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane temperature be 200 DEG C, pressure be that 150KPa, linear velocity are
Heat lamination is carried out under 10m/min makes its integration, and finally obtained thickness is that 0.55mm, grammes per square metre are 268g/m2, air permeability be
11.2cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is played to hair side as air effluent face layer, poly- four
Fluoride porous film layer flows into surface layer for air, evaluates the conducting filtration material of the present invention, its each physical property is referring to table 1.
Embodiment 6
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
Spin the fiber breakpoint number 1.0 × 10 that cloth plays hair side8Individual/m2, fluffing height be 200 μm, section thickness increment rate be 8.0%, measure
The warp-wise confficient of static friction that spunbond polyester non-woven fabrics plays hair side is that to be that 1.100, warp-wise is dynamic rub 1.000, broadwise confficient of static friction
It is that 0.600, the broadwise coefficient of kinetic friction is 0.700, grammes per square metre 280g/m to wipe coefficient2, air permeability 18.0cm3/cm2/s；
（2）The preparation of conductive supporting material：It is 9 μm of conductive black particle, acrylic resin and pure water with weight by particle size
Than for 17：3：Homogeneous dispersion is impregnated in step by 80 proportions into conductive black dispersion liquid（1）In obtained spunbond
To be then 7g/m with content on non-hair side of non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length and be
Conductive supporting material is made in 160 DEG C of baking oven, to be dried with 12m/min speed in 24m, temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 30.0cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane temperature be 200 DEG C, pressure be that 150KPa, linear velocity are
Heat lamination is carried out under 10m/min makes its integration, and finally obtained thickness is that 0.62mm, grammes per square metre are 287g/m2, air permeability be
10.6cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is played to hair side as air effluent face layer, poly- four
Fluoride porous film layer flows into surface layer for air, evaluates the conducting filtration material of the present invention, its each physical property is referring to table 1.
Comparative example 1
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
It is 1.0 × 10 to spin cloth and play the fiber breakpoint number of hair side4Individual/m2, fluffing height be 620 μm, section thickness increment rate be 5.2%, survey
The warp-wise confficient of static friction for obtaining spunbond polyester non-woven fabrics hair side is that 0.510, broadwise confficient of static friction is that 0.630, warp-wise is moved
Coefficient of friction is that 0.280, the broadwise coefficient of kinetic friction is 0.290, grammes per square metre 255g/m2, air permeability 10.9cm3/cm2/s；
（2）The preparation of conductive supporting material：From particle size for 9 μm conductive black particle, acrylic resin and pure water with weight
Amount is than being 17：3：Homogeneous dispersion is sprayed at step by 80 proportions into conductive black dispersion liquid（1）In obtained spin
To be then 8g/m with content on non-hair side of bonded non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length
For 24m, conductive supporting material is made in 150 DEG C of baking oven, to be dried with 12m/min speed in temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 21.3cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane is combined, then by hot pressing temperature be 200 DEG C, pressure be
150KPa, linear velocity are to carry out heat lamination under 10m/min to make its integration, and finally obtained thickness is that 0.53mm, grammes per square metre are 263g/
m2, air permeability be 7.6cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is risen into hair side to flow out as air
Surface layer, polytetrafluoroethylporous porous membrane layer flows into surface layer for air, evaluates the conducting filtration material, its each physical property is referring to table 2.
Comparative example 2
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
It is 5.2 × 10 to spin cloth and play the fiber breakpoint number of hair side5Individual/m2, fluffing height be 580 μm, section thickness increment rate be 5.0%, survey
The warp-wise confficient of static friction for obtaining spunbond polyester non-woven fabrics hair side is that 0.698, broadwise confficient of static friction is that 0.733, warp-wise is moved
Coefficient of friction is that 0.268, the broadwise coefficient of kinetic friction is 0.389, grammes per square metre 250g/m2, air permeability 11.3cm3/cm2/s；
（2）The preparation of conductive supporting material：From particle size for 8 μm conductive black particle, acrylic resin and pure water with weight
Amount is than being 17：3：Homogeneous dispersion is sprayed at step by 80 proportions into conductive black dispersion liquid（1）In obtained spin
To be then 10g/m with content on non-hair side of bonded non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length
For 24m, conductive supporting material is made in 140 DEG C of baking oven, to be dried with 12m/min speed in temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 20.6cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane is combined, then by hot pressing temperature be 200 DEG C, pressure be
150KPa, linear velocity are to carry out heat lamination under 10m/min to make its integration, and finally obtained thickness is that 0.52mm, grammes per square metre are 260g/
m2, air permeability be 8.6cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is risen into hair side to flow out as air
Surface layer, polytetrafluoroethylporous porous membrane layer flows into surface layer for air, evaluates the conducting filtration material, its each physical property is referring to table 2.
Comparative example 3
（1）The preparation of spun-bonded non-woven fabrics fid：The spunbond polyester non-woven fabrics got ready is at the uniform velocity sent into raising machine, passes through control
Pan feeding speed and hook thorn contact strength with draw point or bur, obtain the spunbond polyester non-woven fabrics that one side is fluffed, the spunbond polyester without
It is 9.6 × 10 to spin cloth and play the fiber breakpoint number of hair side9Individual/m2, fluffing height be 560 μm, section thickness increment rate be 8.3%, survey
The warp-wise confficient of static friction for obtaining spunbond polyester non-woven fabrics hair side is that 0.982, broadwise confficient of static friction is that 1.156, warp-wise is moved
Coefficient of friction is that 0.528, the broadwise coefficient of kinetic friction is 0.794, grammes per square metre 255g/m2, air permeability 17.8cm3/cm2/s；
（2）The preparation of conductive supporting material：From particle size for 8 μm conductive black particle, acrylic resin and pure water with weight
Amount is than being 17：3：Homogeneous dispersion is sprayed at step by 80 proportions into conductive black dispersion liquid（1）In obtained spin
To be then 10g/m with content on non-hair side of bonded non-woven fabrics2The spunbond polyester nonwoven of carbon black pellet be arranged in length
For 24m, conductive supporting material is made in 140 DEG C of baking oven, to be dried with 12m/min speed in temperature；
（3）The preparation of conducting filtration material：By step（2）In have the one side of conductive black particle in obtained conductive supporting material
It is 24.7cm with air permeability3/cm2/ s polytetrafluoroethylporous porous membrane is combined, then by hot pressing temperature be 200 DEG C, pressure be
150KPa, linear velocity are to carry out heat lamination under 10m/min to make its integration, and finally obtained thickness is that 0.58mm, grammes per square metre are 265g/
m2, air permeability be 12.3cm3/cm2/ s conducting filtration material.Obtained spunbond polyester non-woven fabrics is played into hair side and is used as air stream
Go out surface layer, polytetrafluoroethylporous porous membrane layer flows into surface layer for air, evaluates the conducting filtration material, its each physical property is referring to table 2.
Comparative example 4
（1）It is 0.106, warp-wise dynamic friction system for 0.081, broadwise confficient of static friction to use the warp-wise confficient of static friction without fluffing
Number is that 0.032, the broadwise coefficient of kinetic friction is that 0.067, grammes per square metre is 260g/m2, air permeability 10.2cm3/cm2/ s spunbond polyester without
Cloth is spun, then selection particle size is 8 μm of conductive black particle, acrylic resin and pure water using weight ratio as 17：3：80
Homogeneous dispersion is sprayed at the one side of spun-bonded non-woven fabrics, then will be with content by proportions into conductive black dispersion liquid
9g/m2The spunbond polyester nonwoven of carbon black pellet be arranged in length for 24m, temperature is in 140 DEG C of baking oven, with 12m/min's
Speed is dried, and conductive supporting material is made；
（2）By step（1）In one side and air permeability in obtained conductive supporting material with conductive black particle be 22.6cm3/
cm2/ s polytetrafluoroethylporous porous membrane is combined, then by hot pressing temperature be 200 DEG C, pressure be that 150KPa, linear velocity are 10m/
Heat lamination is carried out under min makes its integration, and finally obtained thickness is that 0.51mm, grammes per square metre are 269g/m2, air permeability be 7.0cm3/
cm2/ s conducting filtration material.It regard obtained spunbond polyester non-woven fabrics as air effluent face layer, polytetrafluoroethylporous porous membrane layer
Surface layer is flowed into for air, the conducting filtration material is evaluated, its each physical property is referring to table 2.
Table 1
Table 2
Claims (10)
1. a kind of conducting filtration material, it is characterised in that：The conducting filtration material is led by spun-bonded non-woven fabrics fid layer, centre
Electric silica aerogel layer, polytetrafluoroethylporous porous membrane layer are constituted, and the one side of the spun-bonded non-woven fabrics fid layer has been hair side, and this
Hair side is air effluent face layer, and the polytetrafluoroethylporous porous membrane layer flows into surface layer, the spun-bonded non-woven fabrics fid for air
The fiber breakpoint number average value for playing hair side of layer is 106~108Individual/m2。
2. conducting filtration material according to claim 1, it is characterised in that：The fluffing of the spun-bonded non-woven fabrics fid layer
The fluffing in face is highly 200~800 μm.
3. conducting filtration material according to claim 1, it is characterised in that：The fluffing of the spun-bonded non-woven fabrics fid layer
Face section thickness increment rate is 2.0~8.0%.
4. the conducting filtration material according to claim 1 or 2 or 3, it is characterised in that：The spunbond is without anti-cloth fid layer
Rise hair side warp-wise confficient of static friction be 0.700~1.000, broadwise confficient of static friction be 0.900~1.100.
5. the conducting filtration material according to claim 1 or 2 or 3, it is characterised in that：The spun-bonded non-woven fabrics fid layer
Rise hair side the warp-wise coefficient of kinetic friction be 0.400~0.600, the broadwise coefficient of kinetic friction be 0.500~0.700.
6. conducting filtration material according to claim 1, it is characterised in that：The spun-bonded non-woven fabrics fid layer is by gathering
Ester continuous yarn non-woven fabrics are constituted.
7. the conducting filtration material according to claim 1 or 2 or 3, it is characterised in that：Under pressure 125Pa, the spunbond
The air permeability of non-woven fabrics supporting layer is 12.0~18.0cm3/cm2/s。
8. conducting filtration material according to claim 1, it is characterised in that：The grammes per square metre of the spun-bonded non-woven fabrics fid layer
For 200~300g/m2。
9. conducting filtration material according to claim 1, it is characterised in that：Under pressure 125Pa, the conducting filtration material
Air permeability be 8.8~11.2cm3/cm2/s。
10. the production method of conducting filtration material described in a kind of claim 1, it is characterised in that：Comprise the following steps：
（1）The preparation of conductive supporting material：By particle size is 5~10 μm of conductive black particle dispersion spraying, printing or soaks
Stain in spun-bonded non-woven fabrics fids layer it is non-on hair side, then dried in 120~160 DEG C of baking ovens, be made conductive and prop up
Timbering；
（2）The preparation of conducting filtration material：One side and polytetrafluoroethylene (PTFE) in conductive supporting material with conductive black particle is more
Pore membrane temperature be 150~280 DEG C, pressure be to carry out hot pressing under 0.1~0.25MPa, 10~30m/min of linear velocity to be combined, most
Whole finished product.
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| CN201610072283.XA CN107019958A (en) | 2016-02-02 | 2016-02-02 | A kind of conducting filtration material and its production method |
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| CN201610072283.XA CN107019958A (en) | 2016-02-02 | 2016-02-02 | A kind of conducting filtration material and its production method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664530A (en) * | 2018-12-19 | 2019-04-23 | 南京九思高科技有限公司 | A kind of improved antistatic flow-guiding screen and its preparation method and application |
| WO2019174597A1 (en) * | 2018-03-14 | 2019-09-19 | 东丽纤维研究所（中国）有限公司 | Filter material |
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| CN1752319A (en) * | 2005-10-14 | 2006-03-29 | 无锡双象超纤材料股份有限公司 | Raising method for elastic non-woven base fabric |
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| CN2086753U (en) * | 1991-04-11 | 1991-10-16 | 辽宁省朝阳市衬布总厂 | Thermally molten adhesive lining for weft and warp |
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Application publication date: 20170808 |