CN106861292A - A kind of woven filtrate of organic fiber and preparation method - Google Patents
A kind of woven filtrate of organic fiber and preparation method Download PDFInfo
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- CN106861292A CN106861292A CN201710107162.9A CN201710107162A CN106861292A CN 106861292 A CN106861292 A CN 106861292A CN 201710107162 A CN201710107162 A CN 201710107162A CN 106861292 A CN106861292 A CN 106861292A
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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
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/08—Interconnection of layers by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
- B32B2262/0269—Aromatic polyamide fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Woven Fabrics (AREA)
Abstract
The invention provides a kind of woven filtrate of organic fiber, including organic woven cloth layer, polytetrafluoroethylene (PTFE) impregnation process layer, polytetrafluorethylecoatings coatings, polytetrafluoroethylmicroporous microporous membrane；Polytetrafluoroethylene (PTFE) impregnation process layer, polytetrafluorethylecoatings coatings, polytetrafluoroethylmicroporous microporous membrane are followed successively by above the organic fiber machine-woven fabric layer, are polytetrafluoroethylene (PTFE) impregnation process layer below the organic fiber machine-woven fabric layer；The organic fiber machine-woven fabric layer is double-decker.The frivolous softness of product filtrate of the invention, shakes during deashing.
Description
Technical field
Organic fiber is used the present invention relates to a kind of Environmental-protecting dust-removing filtering material of industrial fumes filtering, especially one kind
It is primary raw material, the high accuracy woven filtrate of antistatic organic fiber being made up of woven method.
Background technology
Environmental Protection in China situation is increasingly severe, the serious conditions for persistently occurring haze besieged city in recent years.Industrial dust is haze
Main reason, control is very urgent.It is national to have put into effect some policies, control soot emissions and improvement air in succession
Pollution, specifically includes《" 12 " energy-conserving and environment-protective industrial development planning》、《Ten measures of prevention and control of air pollution》、《Atmosphere pollution
Prevent and treat action plan》、《GB4915-2013 cement industry atmosphere pollutants emission standardses》Etc. policy and measure.It is industrial
Pollutant mainly has flue dust, SO2、SO3、NOx、CO2、N2And some other harmful substances, heavy metal etc., due to operating mode not
The characteristics of with its each, is also not quite similar.
With frequently occurring for haze weather, the social growing interest to industrial fumes emission reduction, industrial fumes has been triggered to make
For haze weather main " arch-criminal " turns into limit row, emission reduction object.The industry such as steel, chemical industry, cement is quick in support national economy
While development, serious environmental pollution is also brought, be one of primary discharge source of industrial fumes, be domestic pollution emission reduction
Major fields.Major pollutants are carbon dioxide, sulfur dioxide, nitrogen oxides, fluoride, powder during all types of industries is produced
The materials such as dirt, are characterized in that waste gas has certain corrosivity, and the light thin harmfulness of dust is big.Therefore, it is weight that industrial fumes are administered
In it is weight.
The high temperature filtrate that current industrial smoke filtering industry sack cleaner is used is broadly divided into organic fiber and inorganic
The big classification of fiber two, wherein organic fiber filtrate is mainly with the presence of non-woven filtrate form, including PTFE, P84, aramid fiber, virtue
The acupunctures such as sulfone synthetic fibre, PPS, acrylic, polypropylene fibre, polyamide fibre or spun lacing lacing felt filter material etc..Above-mentioned filtrate belongs to non-woven filtrate, is to adopt
With acupuncture or the non-woven felt class filtrate of spun lacing processing technology processing procedure, one is acupuncture lacing felt filter material base cloth layer because needle stick injuries are caused
Strength declines, and the tensile strength of filtrate is than relatively low, and poor dimensional stability, long-term use is fragile；Two is that such filtrate makes for a long time
With rear, dust blocks filtrate easily in filtrate building up inside, directly results in SR rising, influence dust pelletizing system
Normal operation, or even influence being normally carried out for production.
The content of the invention
There is filtrate and easily block in the present invention, filtrate is strong for the industrial fumes filtering existing high temperature filtering material of industry
The problems such as power is relatively low, SR is higher, there is provided a kind of strength is high, the high accuracy of heat-proof corrosion resistant, low cost, long service life is prevented
The organic woven filtrate of electrostatic.
A kind of woven filtrate of organic fiber, including organic woven cloth layer, polytetrafluoroethylene (PTFE) impregnation process layer, polytetrafluoro
Vinyl coating, polytetrafluoroethylmicroporous microporous membrane；It is followed successively by polytetrafluoroethylene (PTFE) dipping above the organic fiber machine-woven fabric layer
Reason layer, polytetrafluorethylecoatings coatings, polytetrafluoroethylmicroporous microporous membrane, are polytetrafluoroethylene (PTFE) below the organic fiber machine-woven fabric layer
Impregnation process layer, the organic fiber machine-woven fabric layer is double-decker.
Preferably, the organic fiber machine-woven fabric layer thickness is 0.6-0.8mm, the polytetrafluoroethylene (PTFE) impregnation process thickness
It is 10-30 μm to spend, and the thickness of the polytetrafluorethylecoatings coatings is 50-200 μm, and the polytetrafluoroethylmicroporous microporous membrane thickness is
10-30μm。
Preferably, the double-decker is diclinic line or satin weave.
Preferably, the conductive fiber is carbon fiber or metallic fiber.
Preferably, covered by high temperature hot pressing mode between the polytetrafluorethylecoatings coatings and polytetrafluoroethylmicroporous microporous membrane
Close.
Preferably, the organic fiber machine-woven fabric layer uses organic fiber chopped fiber with conductive fiber for warp thread is prepared
Into.
Described organic fiber is included but is not limited to：PTFE fiber, P84 fibers, aramid fiber, polysulphonamide fiber, PPS are fine
Dimension, acrylic fiber, polypropylene fiber, nylon fibre.
Another aspect of the invention is the preparation method of the woven filtrate of the organic fiber, comprise the following steps：
Preparation → arrangement → inspection → polytetrafluorethylecoatings coatings treatment → the polytetrafluoroethylene (PTFE) of organic fiber machine-woven fabric layer covers
Film → coiled operation → test package.
Preferably, the preparation of the organic fiber machine-woven fabric layer includes that step is as follows：Organic short fiber pretreatment → spinning
Operation, the pre- shredding of organic short fiber+antistatic fibre → main shredding → hopper mixing → combing → drafting → rove → thin network connection
Conjunction machine resultant yarn → warping and expanded, adds conductive fiber, weft yarn expanding processing → weave cotton cloth → check in warp thread.
Preferably, the organic short fiber pretreatment is will uniformly to be spread out after organic short fiber bale breaking, sprinkling 1-3%'s
The antistatic additive aqueous solution, 12 hours are stood at a temperature of 20-25 DEG C.
Preferably, the preparation of the organic fiber machine-woven fabric layer includes that step is as follows：Organic fiber long filament → spinning → whole
Through with it is expanded, conductive fiber, weft yarn expanding processing → weave cotton cloth → check are added in warp thread.
It is described arrangement be by antistatic organic fiber cloth carry out impregnation process, destarch treatment, volatilization treatment, drying and processing,
Thermal finalization is processed.According to the difference of raw material, overall starching amount control is in 5-10%, 95-99 DEG C for the treatment of temperature of volatilization, drying temperature
110-200 DEG C, 140-300 DEG C of heat setting temperature；
The good polyflon of pre-coordination is coated in filter material surface, coating by the polytetrafluorethylecoatings coatings treatment
20-200 μm of thickness, speed 1.5-3m/min, 140-320 DEG C of sintering temperature；
The polyfluortetraethylefilm film coated is that the antistatic organic fiber cloth after coating is processed is thin with polytetrafluoroethylene (PTFE) micropore
Film is introduced into laminating machine simultaneously, carries out the laminating polytetrafluoroethylmicroporous microporous membrane processing in surface, will be thin by way of high temperature hot pressing
Film is combined together with antistatic organic fiber cloth, and 140 DEG C -360 DEG C of coated temperature, pressure is 0.2-0.3MPa, the speed of service
2-4m/min。
Preferably, 150-160 DEG C of the drying temperature of PPS fiber filterings, 180-200 DEG C of heat setting temperature, sintering temperature
220-240 DEG C, 230-250 DEG C of coated temperature.
Preferably, 160-180 DEG C of the drying temperature of aramid fiber filtrate, 220-240 DEG C of heat setting temperature, sintering temperature
250-270 DEG C, 280-290 DEG C of coated temperature.
Preferably, 180-200 DEG C of the drying temperature of PTFE fiber filtrate, 260-270 DEG C of heat setting temperature, sintering temperature
300-320 DEG C, 350-360 DEG C of coated temperature.
Product of the present invention has following functions：
1st, surface filtration, high precision.Filter material surface is by laminating polytetrafluoroethylene (PTFE) micropore is thin again after polytetrafluorethylecoatings coatings
Film, realizes conversion of the in-depth filtration to surface filtration, is prevented effectively from filtrate inside laying dust, reduces system operation resistance.Can be with height
Effect trapping PM2.5 micronic dusts, realize the even lower dust emissions of ＜ 10mg.
2nd, strength is high, and organic fiber filtering is made using organic fiber yarn is woven, and yarn strength does not lose, higher than similar pin
More than 1.5 times of thorn filtrate；Extend the service life of filtrate.
3rd, antistatic, conductive fiber is added in spinning, warping or weaving, filtrate is had antistatic effect, is contributed to
The trapping of fine dust and the deashing of filtrate.
4th, deashing is good, and the laminating polytetrafluoroethylmicroporous microporous membrane of filter material surface, dust-cleaning efficiency is high；The frivolous softness of filtrate,
Shaken during deashing.
5th, energy-saving, dust pelletizing system running resistance is low, reduces fan energy consumption more than 25%；Required deashing pressure is small, clearly
Grey number of times is few, saves compressed air.
Brief description of the drawings
Fig. 1 is the woven filter material layer structural representation of organic fiber of the invention.
Specific embodiment
In order to the present invention is better described, with reference to the accompanying drawing in the embodiment of the present invention, in the embodiment of the present invention
Technical scheme is clearly and completely described.
As shown in figure 1, the woven filtrate of organic fiber of the invention includes layer 1, the polytetrafluoroethylene (PTFE) leaching of organic woven cloth
Stain process layer 2, polytetrafluorethylecoatings coatings 3, polytetrafluoroethylmicroporous microporous membrane 4.
The high accuracy woven filtrate of antistatic organic fiber of an object of the present invention is realized, is using high-quality organic fiber
The high accuracy woven filtrate of antistatic organic fiber of weaving yarns.
The woven filtrate of high accuracy antistatic organic fiber is not lost due to yarn strength, the overall machinery strength of filtrate compared with
Height, is more than 1.5 times of acupuncture lacing felt filter material, can bear long-term filtering deashing motion without producing damage.
The woven filtrate of high accuracy antistatic organic fiber adds conductive fiber during spinning and warping, after being made filtrate
With antistatic effect.
The preparation technology for realizing the high accuracy woven filtrate of antistatic organic fiber of the second object of the present invention is to use to have
Machine chopped fiber or organic filament are raw material, are first spun into the organic yarn for meeting technological requirement, and cloth is then weaved into again, after pass through
Arrangement processing and coating processing are crossed, polyfluortetraethylefilm film coated processing is finally carried out, high accuracy antistatic organic fiber is made woven
Filtrate.
Described organic fiber is included but is not limited to：PTFE fiber, P84 fibers, aramid fiber, polysulphonamide fiber, PPS are fine
Dimension, acrylic fiber, polypropylene fiber, nylon fibre etc..
The concrete technology flow process of the woven filtrate of high accuracy antistatic organic fiber of the invention is as follows：
Scheme one：(the pre- shredding of organic short fiber+antistatic fibre → main shredding of organic short fiber pretreatment → spinning process
→ hopper mixing → combing → drafting → rove → thin network combination machine resultant yarn) → warping and it is expanded (conductive fiber is added in warp thread,
Weft yarn expanding processing) → weave cotton cloth → check → arrange (impregnation process, destarch treatment, volatilization treatment, drying and processing, thermal finalization) →
Inspection → polytetrafluorethylecoatings coatings treatment → polyfluortetraethylefilm film coated → coiled operation → test package, is made with antistatic work(
The woven filtrate of high accuracy organic fiber of effect.
Scheme two：Organic fiber long filament → spinning → warping and it is expanded (add conductive fiber in warp thread, weft yarn it is expanded plus
Work) → weave cotton cloth → check → arrange (impregnation process, destarch treatment, volatilization treatment, drying and processing, thermal finalization) → inspection → poly- four
PVF coating treatment → polyfluortetraethylefilm film coated → coiled operation → test package, is made the high accuracy with antistatic effect
Organic woven filtrate.
Described fiber pretreatment is will uniformly to be spread out after organic short fiber bale breaking, sprays the antistatic additive water of 1-3%
Solution, 12 hours are stood at a temperature of 20-25 DEG C, the purpose is to make organic short fiber fully absorb antistatic additive, are reduced and are spun
Electrostatic effect during knitting, improves the spinnability of fiber, it is ensured that the crudy of product.
Described conductive fiber includes but is not limited to carbon fiber, metallic fiber etc., it is preferable that carbon fiber.
Described spinning process is the process that organic short fiber or long filament are spun into the organic yarn for meeting technological requirement,
Including：The pre- shredding of organic short fiber+conductive fiber, main shredding, hopper mixing, combing, drafting, rove, thin network combination machine resultant yarn
Deng production link, according to technological requirement, organic yarn of required line density is made.
Described warping process is that organic fiber yarn is made into warp beam, and period can add appropriate leading according to technological requirement
Electric fiber improves the electric conductivity of product, the overall content ＜ 10% of conductive fiber as warp thread.
Described expanded operation is that organic fiber yarn is carried out into expanding processing, makes yam surface that tubercle, looped pile etc. is presented fluffy
Loose state, improves the dust catching efficiency of product, expanded irregularity ＜ 1%.
Described operation of weaving cotton cloth is that weaving turns into antistatic organic fiber according to Product Process requirement by warp beam and buiky yarn
Cloth, fabric lines is from double-deckers such as diclinic line, satin weaves, it is ensured that product has preferable mechanical property and strainability.
Described arranging process is that antistatic organic fiber cloth is carried out into impregnation process, destarch treatment, volatilization treatment, drying
Treatment, thermal finalization etc. arrange processing, and overall starching amount control is in 5-10%, 95-99 DEG C for the treatment of temperature of volatilization, drying temperature 110-
200 DEG C, 140-300 DEG C of heat setting temperature.Arranging process purpose is to improve tensile strength, temperature tolerance, corrosion resistance, the chi of product
The performance indications such as very little stability, better meet the use requirement of operating mode, increase the service life；
Arranging the introducing coating machine of the antistatic organic fiber cloth after processing carries out coating processing.Described coating procedure be by
Antistatic organic fiber cloth after thermal finalization processing is introduced into coating machine, and the good polyflon of pre-coordination is coated in
Filter material surface, 50-200 μm of coating layer thickness, speed 1.5-3m/min, 140-320 DEG C of sintering temperature.Processed by coating and improve anti-
The filtering deashing property of electrostatic organic fiber cloth, is that element task is carried out in follow-up overlay film processing.
Described coating processes are that the antistatic organic fiber cloth after coating is processed is same with polytetrafluoroethylmicroporous microporous membrane
When be introduced into laminating machine, carry out surface laminating polytetrafluoroethylmicroporous microporous membrane processing, by way of high temperature hot pressing by film with
Antistatic organic fiber cloth is combined together, 140 DEG C -360 DEG C of coated temperature, and pressure is 0.2-0.3MPa, speed of service 2-4m/
min.The filtering deashing property for improving antistatic organic fiber cloth is processed by overlay film, in-depth filtration turning to surface filtration is realized
Change；
The organic woven filtrate of described high accuracy antistatic, with high temperature resistant, corrosion-resistant, tensile strength high, dimensionally stable,
The distinguishing features such as filtering deashing good, high-efficiency low-resistance long-life, efficiently trapping PM2.5 micronic dusts, realize dust concentration ＜ 10mg/
Nm3Minimum discharge.
Embodiment 1
(the pre- shredding of aramid fiber short fibre+antistatic fibre → main shredding → hopper of aramid fiber short fibre pretreatment → spinning process
Mixing → combing → drafting → rove → thin network combination machine resultant yarn) → warping and expanded (conductive fiber is added in warp thread, weft yarn is swollen
Change processing) → weave cotton cloth → check → arrange (impregnation process, destarch treatment, volatilization treatment, drying and processing, thermal finalization) → inspection →
Polytetrafluorethylecoatings coatings treatment → polyfluortetraethylefilm film coated → coiled operation → test package, is made the height with antistatic effect
The woven filtrate of precision aramid fiber.
Uniformly spread out after aramid fiber short fibre bale breaking, the antistatic additive aqueous solution of sprinkling 1% stands at a temperature of 23 DEG C
12 hours, the purpose is to make aramid fiber short fibre fully absorb antistatic additive, the electrostatic effect in fabrication processes is reduced, improve fiber
Spinnability, it is ensured that product quality.
Spinning process is the process that aramid fiber short fibre is spun into the aramid yarn for meeting technological requirement, including：Aramid fiber is short
The pre- shredding of fiber+antistatic fibre, main shredding, hopper mixing, combing, drafting, rove, thin network combination machine resultant yarn etc. produce ring
Section, according to technological requirement, is made the aramid yarn of required line density；Described antistatic fibre include but is not limited to carbon fiber,
Metallic fiber etc., it is preferable that carbon fiber.
An aramid yarn part delivers to warping process and is made that warp beam is stand-by, can add appropriate conduction according to technological requirement
Fiber improves the electric conductivity of product, the overall content ＜ 10% of conductive fiber as warp thread.
Another part aramid yarn delivers to expanded operation and carries out expanding processing, makes yam surface that tubercle, looped pile etc. is presented fluffy
Loose state, improves the dust catching efficiency of product, it is desirable to expanded irregularity ＜ 1%；It is made aramid fiber buiky yarn stand-by.
The beam of a loom that warping process is made is arranged on loom and weaves, and aramid fiber buiky yarn is introduced as weft yarn, according to product
Technological requirement, weaving turns into antistatic aryl fiber cloth, and fabric lines is from double-layered structure's structures such as diclinic line, satin weaves, it is ensured that
Product has preferable mechanical property and strainability；
Arranging process be by antistatic aryl fiber cloth carry out impregnation process, destarch treatment, volatilization treatment, drying and processing,
Thermal finalization etc. arranges processing, and overall starching amount control is in 10%, 99 DEG C for the treatment of temperature of volatilization, 170 DEG C of drying temperature, thermal finalization temperature
240 DEG C of degree.Arranging process purpose is that the performances such as tensile strength, temperature tolerance, corrosion resistance, the dimensional stability of raising product refer to
Mark, better meets the use requirement of operating mode, increases the service life；
Arranging the introducing coating machine of the antistatic aryl fiber cloth after processing carries out coating processing.Polytetrafluorethylecoatings coatings be by
Antistatic aryl fiber cloth after thermal finalization processing is introduced into coating machine, and the good polyflon of pre-coordination is coated in
Filter material surface, 100 μm of coating layer thickness, speed 2m/min, 260 DEG C of sintering temperature.Processed by coating and improve antistatic aramid fiber fibre
The filtering deashing property of cloth is tieed up, is that basis is carried out in follow-up overlay film processing；
Coating antistatic aryl fiber cloth is introduced into laminating machine simultaneously with polytetrafluoroethylmicroporous microporous membrane, carries out surface laminating
Polytetrafluoroethylmicroporous microporous membrane is processed, and film is combined together with antistatic aryl fiber cloth by way of high temperature hot pressing,
280 DEG C of coated temperature, pressure is 0.3MPa, speed of service 3m/min.Processed by overlay film and improve antistatic aryl fiber cloth
Filtering deashing property, realizes conversion of the in-depth filtration to surface filtration.
The described high accuracy woven filtrate of antistatic aramid fiber, with high temperature resistant, corrosion-resistant, tensile strength high, dimensionally stable,
The distinguishing features such as filtering deashing good, high-efficiency low-resistance long-life, efficiently trapping PM2.5 micronic dusts, realize dust concentration ＜ 10mg/
Nm3Minimum discharge.
The woven media performance parameter list of antistatic aramid fiber
Embodiment 2
PPS long filaments → spinning → warping and expanded (conductive fiber, weft yarn expanding processing are added in warp thread) → weave cotton cloth → examine
Test → arrange at (impregnation process, destarch treatment, volatilization treatment, drying and processing, thermal finalization) → inspection → polytetrafluorethylecoatings coatings
Reason → polyfluortetraethylefilm film coated → coiled operation → test package, is made the woven filtrates of high accuracy PPS with antistatic effect.
Spinning process is the process that PPS long filaments are spun into the PPS yarns for meeting technological requirement, and a PPS yarn parts are sent
It is made that warp beam is stand-by to warping process, according to technological requirement appropriate conductive fiber can be added as warp thread, improves product
Electric conductivity, the overall content ＜ 10% of conductive fiber.
Another part PPS yarns deliver to expanded operation and carry out expanding processing, make yam surface that tubercle, looped pile etc. is presented fluffy
State, improves the dust catching efficiency of product, it is desirable to expanded irregularity ＜ 1%；It is made PPS buiky yarns stand-by.
The beam of a loom that warping process is made is arranged on loom and weaves, and PPS buiky yarns are introduced as weft yarn, according to product work
Skill requirement, weaving turns into antistatic PPS fiber cloths, and fabric lines is from double-layered structure's structures such as diclinic line, satin weaves, it is ensured that product
With preferable mechanical property and strainability；
Arranging process is that antistatic PPS fiber cloths are carried out into impregnation process, destarch treatment, volatilization treatment, drying and processing, heat
Sizing etc. arranges processing, and overall starching amount control is in 5%, 95 DEG C for the treatment of temperature of volatilization, 150 DEG C of drying temperature, heat setting temperature
180℃.Arranging process purpose is the performance indications such as tensile strength, temperature tolerance, corrosion resistance, the dimensional stability of raising product,
The use requirement of operating mode is better met, is increased the service life；
Arranging the introducing coating machine of the antistatic PPS fiber cloths after processing carries out coating processing.Polytetrafluorethylecoatings coatings be by
Antistatic PPS fiber cloths after thermal finalization processing are introduced into coating machine, and the good polyflon of pre-coordination is coated in
Filter material surface, 200 μm of coating layer thickness, speed 3m/min, 240 DEG C of sintering temperature.Processed by coating and improve antistatic PPS fibers
The filtering deashing property of cloth, is that basis is carried out in follow-up overlay film processing；
Coating antistatic PPS fiber cloths are introduced into laminating machine simultaneously with polytetrafluoroethylmicroporous microporous membrane, carry out surface laminating
Polytetrafluoroethylmicroporous microporous membrane is processed, and film is combined together with antistatic PPS fiber cloths by way of high temperature hot pressing, is covered
230 DEG C of film temperature, pressure is 0.2MPa, speed of service 2m/min.The filtering for improving antistatic PPS fiber cloths is processed by overlay film
Deashing property, realizes conversion of the in-depth filtration to surface filtration.
The described high accuracy antistatic woven filtrates of PPS, with high temperature resistant, corrosion-resistant, tensile strength high, dimensionally stable,
The distinguishing features such as filtering deashing good, high-efficiency low-resistance long-life, efficiently trapping PM2.5 micronic dusts, realize dust concentration ＜ 10mg/
Nm3Minimum discharge.
The woven media performance parameter list of antistatic PPS fibers
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, and appoints
What those familiar with the art disclosed herein technical scope in, the change that can be readily occurred in or replacement,
Should all be included within the scope of the present invention.
Claims (10)
1. the woven filtrate of a kind of organic fiber, it is characterised in that including organic woven cloth layer, polytetrafluoroethylene (PTFE) impregnation process
Layer, polytetrafluorethylecoatings coatings, polytetrafluoroethylmicroporous microporous membrane；Polytetrafluoroethyl-ne is followed successively by above the organic fiber machine-woven fabric layer
Alkene impregnation process layer, polytetrafluorethylecoatings coatings, polytetrafluoroethylmicroporous microporous membrane, are poly- below the organic fiber machine-woven fabric layer
Tetrafluoroethene impregnation process layer；The organic fiber machine-woven fabric layer is double-decker；The organic fiber machine-woven fabric layer is used to be had
Machine fiber chopped fiber is with conductive fiber for warp thread is prepared from.
2. the woven filtrate of organic fiber according to claim 1, it is characterised in that the double-decker is diclinic line or satin
Line.
3. the woven filtrate of organic fiber according to claim 1, it is characterised in that the conductive fiber is carbon fiber or gold
Category fiber.
4. the woven filtrate of organic fiber according to claim 1, it is characterised in that the organic fiber machine-woven fabric layer thickness
It is 0.6-0.8mm, the polytetrafluoroethylene (PTFE) impregnation process thickness degree is 10-30 μm, the thickness of the polytetrafluorethylecoatings coatings is
50-200 μm, the polytetrafluoroethylmicroporous microporous membrane thickness is 10-30 μm.
5. the woven filtrate of organic fiber according to claim 1, it is characterised in that the polytetrafluorethylecoatings coatings and poly- four
It is laminating by high temperature hot pressing mode between PVF microporous membrane.
6. the method for preparing any described woven filtrates of organic fiber of claim 1-5, it is characterised in that including following step
Suddenly：
Preparation → arrangement → inspection → polytetrafluorethylecoatings coatings treatment → the polyfluortetraethylefilm film coated of organic fiber machine-woven fabric layer →
Coiled operation → test package.
7. the preparation method of the woven filtrate of organic fiber according to claim 6, it is characterised in that the organic fiber machine
The preparation of nonwoven fabric layer includes that step is as follows：Organic short fiber pretreatment → spinning process, organic short fiber+antistatic fibre is opened in advance
Pine → main shredding → hopper mixing → combing → drafting → rove → thin network combination machine resultant yarn → warping and expanded, addition in warp thread
Conductive fiber, weft yarn expanding processing → weave cotton cloth → check.
8. the preparation method of the woven filtrate of organic fiber according to claim 7, it is characterised in that the organic short fiber
Pretreatment is will uniformly to be spread out after organic short fiber bale breaking, the antistatic additive aqueous solution of 1-3% is sprayed, in 20-25 DEG C of temperature
Degree is lower to stand 12 hours.
9. the preparation method of the woven filtrate of organic fiber according to claim 6, it is characterised in that the organic fiber machine
The preparation of nonwoven fabric layer includes that step is as follows：Organic fiber long filament → spinning → warping and expanded, adds conductive fiber, latitude in warp thread
Yarn expanding processing → weave cotton cloth → check.
10. the preparation method of the woven filtrate of organic fiber according to claim 6, it is characterised in that the arrangement be by
Antistatic organic fiber cloth carries out impregnation process, destarch treatment, volatilization treatment, drying and processing, thermal finalization treatment；Overall starching amount
It is 5-10%, volatilize 95-99 DEG C for the treatment of temperature, 110-200 DEG C of drying temperature, 140-300 DEG C of heat setting temperature；
The good polyflon of pre-coordination is coated in filter material surface, coating layer thickness by the polytetrafluorethylecoatings coatings treatment
20-200 μm, speed 1.5-3m/min, 140-320 DEG C of sintering temperature；
The polyfluortetraethylefilm film coated is that the antistatic organic fiber cloth after coating is processed is same with polytetrafluoroethylmicroporous microporous membrane
When be introduced into laminating machine, carry out surface laminating polytetrafluoroethylmicroporous microporous membrane processing, by way of high temperature hot pressing by film with
Antistatic organic fiber cloth is combined together, 140 DEG C -360 DEG C of coated temperature, and pressure is 0.2-0.3MPa, speed of service 2-4m/
min。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064249A (en) * | 2019-04-30 | 2019-07-30 | 浙江华基环保科技有限公司 | A kind of processing method of pure polytetrafluoroethylene (PTFE) filter cloth |
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