CN109572123A - Woven knitting composite construction based high-temp-resistant environmental protection filtrate of one kind and preparation method thereof - Google Patents
Woven knitting composite construction based high-temp-resistant environmental protection filtrate of one kind and preparation method thereof Download PDFInfo
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- CN109572123A CN109572123A CN201811367124.8A CN201811367124A CN109572123A CN 109572123 A CN109572123 A CN 109572123A CN 201811367124 A CN201811367124 A CN 201811367124A CN 109572123 A CN109572123 A CN 109572123A
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
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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
-
- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
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- 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
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/026—Knitted fabric
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
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- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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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
- B01D2239/10—Filtering material manufacturing
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- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
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- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- 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
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- 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
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- 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
- B32B2262/14—Mixture of at least two fibres made of different materials
Abstract
The invention discloses a kind of woven knitting composite construction based high-temp-resistant environmental protection filtrate and preparation method thereof, which is to weave after fiber spun yarn into woven knitting composite construction base fabric；The composite fibre net that fiber is formed through mixing, combing, lapping is laid on the upper and lower surface of composite construction base fabric respectively, base fabric and web are reinforced with oval pricker to carry out arranging again is prepared.The present invention utilizes the woven structural stability and suitable type for being knitted compound base fabric, and oval pricker prepares high-tenacity, high temperature resistance filtration material to the lesser characteristic of the damage of base fabric, keep filter structure close, strongly high, saves material, extend the service life of filtrate.
Description
Technical field
The invention belongs to filter with separation material field, more particularly, to a kind of woven knitting composite construction Ji Naigao
Warm environmental protection filtrate and preparation method thereof.
Background technique
Sack cleaner is a kind of dry type dust filtration device, and the main filtration using fabric is to subtle, drying
Dust is captured, and is able to satisfy emission request, harmless effect to reach filtered air.Existing heat resistance filter bag one
As use using fibers such as P84, PPS, PTFE, aramid fiber, basalt, glasses as raw material, using nonwovens process, pierce and process through needle
It forms, pricker is all made of triangle, trifoil cross-section.In order to enhance the strength of filtrate, have among filtrate woven or knitting
Base fabric.The strength of filtrate is provided jointly by surface layer fibre web and base fabric, and the contribution rate of strength respectively may be about 30% and 70%.
Filtrate is during pinprick reinforcement, with the high speed reciprocating motion up and down of pricker, needle point and barb impact base fabric and
The short fibre of fibre web leads to fibrous fracture or damage, and filtrate strength declines, and service life significantly reduces.
Summary of the invention
The purpose of the present invention is overcoming the above deficiency, provide a kind of woven knitting composite construction based high-temp-resistant environmental protection filtrate and
Preparation method, utilization is woven, is knitted the structural stability and suitable type of compound base fabric, and oval pricker is to the damage of base fabric
Hurt lesser characteristic and prepare high-tenacity, high temperature resistance filtration material, extends the service life of filtrate.
To achieve the goals above, the present invention provides a kind of woven knitting composite construction based high-temp-resistant environmental protection filtrate, including
The woven knitting composite construction base fabric as made of knitted structure and machine-knitted structure braiding, it is woven to be knitted the upper and lower of composite construction base fabric
Surface is laid with composite fibre net, and the surface of the composite fibre net of any one side is equipped with micro porous filtration membrane coat.
The knitted structure of woven knitted composite material base fabric of the present invention is that stocking yarn uses plain stitch, double rib group
It knits or rib construction；The machine-knitted structure is that warp thread and weft yarns form.The stocking yarn, warp thread and weft yarn are inorfil
High-performance fiber Single Fiber or two kinds of fibers composite fibre yarn.The preferred glass of the inorfil or basalt are fine
Dimension, the preferred P84, PPS of high-performance fiber, PTFE, aramid fiber.
Woven knitting composite construction base fabric density of the present invention is 50-250g/m2, preferably 100-250g/m2。
Composite fibre net of the present invention is to cross interleaved mode multilayer by single layer fibre Netcom to be paved into, the composite fibre net
Density be 100-300g/m2, preferably 100-250g/m2, the single layer fibre reticular density is 15-25g/m2。
Filtrate of the present invention is with a thickness of 1.5-3.0mm, density 250-600g/m2, preferably 300-600g/m2。
The preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate of the present invention, is by fiber spun yarn
Afterwards, weaving is at woven knitting composite construction base fabric；The composite fibre net point that fiber is formed through mixing, combing, lapping, pre-needling
Be not laid on the upper and lower surface of composite construction base fabric, with oval pricker to base fabric and web carry out pinprick reinforcement carry out again it is whole
Reason is prepared.
Woven knitting composite construction base fabric is by the plain stitch using stocking yarn braiding, interlock described in the above method
Or the knitted structure and use warp thread of rib construction and the plain woven structure of weft yarns weave.The yarn of use be by
Fiber is made through cotton carding, at item, rove, spinning process.
Fiber described in the above method be one or both of inorfil or the short fibre of high-performance fiber fiber by grab cotton,
Shredding, the silvalin being mixed or basaltic buiky yarn.The fiber inorganic fiber or the short fibre of high-performance fiber, are adopted
The short fibre for being 30-90.0mm with 1.2-9D, length, basalt fibre select zero twisted yarn, twisted yarn or rove.Wherein, silvalin
The line density of line selects twisted yarn, line density 150-300dtex, twist 35- in 3-10dtex, basalt yam stocking yarn
50 twirls/50cm, basalt warp, weft yarn select rove, line density 600-2400dtex.
Pre-needling condition described in the above method are as follows: bestock: 1250 pieces/m, needling density 800-840 Ci/㎝2, needle
Pierce depth 11mm, web velocity 4m/min.
The condition of the thorn of needle described in the above method are as follows: needling density 210-2000 thorn/cm2, depth of needling 7-13mm, plant needle
1000-3000 pieces of density/m, web output speed 0.5-2.5m/min.Pricker used has two ribs, on every rib there are two
Briar tooth, briar tooth are spaced with briar tooth.
Arrangement described in the above method is to singe, be formed and coating；Wherein, singing is the short and small fibre for removing filter material surface
Dimension, sizing mainly improve the thermal stability of filtrate, and coating is to coat micro porous filtration membrane coat in fabric surface, enhances filtrate
Filter efficiency.The coating can be that (aperture is for PTFE ultrafiltration membrane coat (aperture be 0.01~0.1 μm) or ceramic membrane coat
0.8nm~1 μm).
It is above-mentioned it is woven knitting composite construction based high-temp-resistant environmental protection filtrate preparation method specifically includes the following steps:
(1) composite fibre net is made through combing, lapping and pre-needling process in fiber；
(2) yarn is made through cotton carding, at item, rove, spinning process in fiber；Yarn uses plain group as stocking yarn
Knit, interlock or rib construction are knitted structure, yarn, using plain woven structure, is woven into machine as warp thread and weft yarn
Weaving knitting composite structure base fabric；
(3) layer tiles composite fibre net respectively in woven knitting composite construction base fabric, acupuncture apparatus is transported to, by planting
Filtrate is made in the upper and lower reciprocal pinprick reinforcement of oval pricker high speed on needle plate；
(4) filtrate is by singing, being formed and coating obtains final products.
The filtrate of above method preparation is with a thickness of 1.5-3.0mm, weight 250-600g/m2, vertically and horizontally ultimate strength 900-
1600N/5cm, Air permenbility 100-200L/dm2·min。
Compared with prior art, the invention has the benefit that
(1) woven knitting compound base fabric is a kind of new structure (CWK) fabric, wherein existing mutually handed over by warp thread and weft yarn
Knit the machine-knitted structure to be formed, and have by stocking yarn bending into coil, and mutually wear and the knitted structure that is formed, be two kinds of knots
Structure it is compound.Base fabric of the present invention has merged woven and knitting technology simultaneously, and base fabric is made to have structural stability and suitable type.
(2) oval pricker cross section in same needle thorn diameter is maximum, wink when pricker pumps, with base fabric
Between contact most mild, the damage of base fabric and short fibre of non-woven layer is less, strongly than same fiber, specification filtrate of the same race raising
10% or more.It can prolong the service life.
(3) fiber environmental that uses of the present invention and can Wear-resistant, high-temperature resistant, short fibre is also beneficial to avoid being needled damage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of woven knitting composite construction based high-temp-resistant environmental protection filtrate of the present invention.
Fig. 2 is the structural schematic diagram of woven knitting composite construction base fabric of the present invention.
Fig. 3 is the structural schematic diagram of oval pricker of the present invention.
Fig. 4 is the sectional view of oval pricker of the present invention.
In figure: the woven knitting composite construction base fabric of 1-, 2- composite fibre net, 3- filter membrane coat, 4- stocking yarn, 5- warp
Yarn, 6- weft yarn.
Specific embodiment
Below in conjunction with the specific embodiment preferred embodiment that the present invention will be described in more detail.
According to Fig. 1 and the woven knitting composite construction based high-temp-resistant environmental protection filtrate of one kind shown in Fig. 2, including by knitted structure
With woven knitting composite construction base fabric 1 made of machine-knitted structure braiding, the upper and lower surface of the woven knitting composite construction base fabric 1
It is laid with composite fibre net 2,2 surface of composite fibre net of any one side is equipped with filtering membrane coat 3.
The knitted structure of woven knitted composite material base fabric 1 of the present invention is that stocking yarn 4 uses plain stitch, double rib
Tissue or rib construction, the machine-knitted structure are that warp thread 5 and weft yarn 6 are interwoven.The composite fibre net 2 is by single layer fibre
Netcom crosses interleaved mode multilayer and is paved into.
Embodiment 1
By the PTFE chopped strand of 3.2D*51mm, composite fibre net is formed after shredding, combing, lapping and pre-needling
2, density 100g/m2。
Pre-needling: bestock: 1250 pieces/m, 840 Ci/㎝ of needling density2, depth of needling 11mm, web velocity 4m/
min。
Woven knitting composite construction base fabric 1 is using 3.2dtex*51mmPTFE chopped strand through cotton carding, at item, rove, thin
Yarn made of yarn process, stocking yarn 4 form 1+1 rib-loop bottom tissue, and warp thread 5 and weft yarn 6 are organized with being lining into straight mode
In, warp thread 5 serves as a contrast in the wale of ground tissue, and weft yarn 6 serves as a contrast between ground tissue coil and warp thread, forms 2 layers of weft yarn 6 and 2
Layer warp thread 5.It include 4 mailles in cellular construction, 2 warp thread 5 and 4 piece weft yarns, 6,2 warp thread 5 are served as a contrast respectively in front coil
Within stringer and within purl loop stringer, 4 weft yarns 6 are lining into same row and are separated into 2 groups, such as Fig. 2 by warp thread
It is shown.Base fabric through it is close be 62/5cm, filling density is 57/5cm, and base fabric density is 210g/m2, through being 1011.4N to strength, break
Splitting elongation is 13.7%, and broadwise strength is 1081.7N, elongation at break 20.1%.
The upper layer of woven knitting composite construction base fabric 1 tiles composite fibre net 2 respectively, is transported to acupuncture apparatus, by
The oval pricker high speed being implanted on needle plate carries out reciprocal needle thorn up and down, forms filtrate；Filtrate through singing, be formed, coating work
Sequence, described singe is the small short fibers for removing filter material surface, and coating is to apply PTFE ultrafiltration membrane coat in filtrate side.
Needing machine (model: SPN-250 type, Shantou Sanhui Nonwoven Machinery Factory Co., Ltd.'s production) in above-mentioned needle-punching run
Punch frequency is 430 times/min, bestock 3000 pieces/m, breadth 2500mm, web output speed 1.5m/min, needle thorn
1040 thorns of density/cm2, depth of needling 9mm.
The pricker of needing machine is that (pricker model 15*18*40*3DT, Germany, manufacturer George Grosz are public for oval pricker
Department).Pricker has two ribs, and there are two briar tooths on every rib, and briar tooth is spaced with briar tooth, and the distance between every two briar tooth is
3.18mm as shown in Figure 3 and Figure 4.
Manufactured high-strength high temperature resistance filtration material, density 410g/m after pinprick reinforcement2, through being 990.3N, fracture to strength
Elongation is 11.8%, and broadwise strength is 972.1N, elongation at break 10.1%.
Embodiment 2
By short fine and 1.6D*61mm the short fibre of PPS of the PTFE of 3.2D*51mm, by shredding, mixing, combing, cross lapping
After pre-needling, composite fibre net 2, density 120g/m are formed2。
Pre-needling: bestock: 1250 pieces/m, needling density pierces 800 thorns/cm2, depth of needling 11mm, web velocity
4m/min。
Woven knitting composite construction base fabric 1 is using 3.2dtex*51mmPTFE chopped strand through cotton carding, at item, rove, thin
Yarn made of yarn process, stocking yarn 4 form 1+1 rib-loop bottom tissue, and warp thread 5 and weft yarn 6 are organized with being lining into straight mode
In, warp thread 5 serves as a contrast in the wale of ground tissue, and weft yarn 6 serves as a contrast between ground tissue coil and warp thread, forms 2 layers of weft yarn 6 and 2
Layer warp thread 5.It include 4 mailles in cellular construction, 2 warp thread 5 and 4 piece weft yarns, 6,2 warp thread 5 are served as a contrast respectively in front coil
Within stringer and within purl loop stringer, 4 weft yarns 6 are lining into same row and are separated into 2 groups, such as Fig. 2 by warp thread
It is shown.Through it is close be 82/5cm, filling density is 76/5cm, and base fabric density is 200g/m2, through being 1011.4N to strength, fracture is stretched
Long rate is 13.7%, and broadwise strength is 1081.7N, elongation at break 20.1%.
The upper layer of woven knitting composite construction base fabric 1 tiles composite fibre net 2 respectively, is transported to acupuncture apparatus, by
The oval pricker high speed being implanted on needle plate carries out reciprocal needle thorn up and down, forms filtrate；Filtrate through singing, be formed, coating work
Sequence, described singe is the small short fibers for removing filter material surface, and coating is to coat ceramic membrane coat on one side in filtrate.
Needing machine (model: SPN-250 type, Shantou Sanhui Nonwoven Machinery Factory Co., Ltd.'s production) in above-mentioned needle-punching run
Punch frequency is 450 times/min, bestock 3000 pieces/m, breadth 2500mm, web output speed 1.5m/min, needle thorn
1040 thorns of density/cm2；Depth of needling is 9mm.
The pricker of needing machine is that (pricker model 15*18*40*3DT, Germany, manufacturer George Grosz are public for oval pricker
Department).Pricker has two ribs, and there are two briar tooths on every rib, and briar tooth is spaced with briar tooth, and the distance between every two briar tooth is
3.18mm as shown in Figure 3 and Figure 4.
Manufactured high-strength high temperature resistance filtration material, density 440g/m after pinprick reinforcement2, through being 983.1N, fracture to strength
Elongation is 11.4%, and broadwise strength is 977.3N, elongation at break 18.3%.
Claims (14)
1. a kind of woven knitting composite construction based high-temp-resistant environmental protection filtrate, it is characterised in that including by knitted structure and machine-knitted structure
The upper and lower surface of woven knitting composite construction base fabric (1) made of braiding, woven knitting composite construction base fabric (1) is laid with mixing
The surface of web (2), the composite fibre net (2) of any one side is equipped with micro porous filtration membrane coat (3).
2. woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 1, it is characterised in that described woven
The knitted structure for being knitted composite construction base fabric (1) is stocking yarn (4) using plain stitch, interlock or rib construction braiding
It forms；The machine-knitted structure is interwoven by warp thread (5) and weft yarn (6).
3. woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 2, it is characterised in that stocking yarn
(4), warp thread (5) and weft yarn (6) are respectively the Single Fiber of inorfil or high-performance fiber or the composite fibre of two kinds of fibers
Yarn.
4. woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 1, it is characterised in that described woven
Knitting composite construction base fabric (1) density is 50-250g/m2。
5. woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 1, it is characterised in that the mixing
Web (2) is to cross interleaved mode multilayer by single layer fibre Netcom to be paved into；The density of the composite fibre net (2) is 100-
300g/m2, the single layer fibre reticular density is 15-25g/m2。
6. woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 1, it is characterised in that the filtrate
With a thickness of 1.5-3.0mm, density 250-600g/m2。
7. a kind of preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate described in claim 1, feature exist
After this method is by fiber spun yarn, weave into woven knitting composite construction base fabric；By fiber through mixing, combing, lapping,
The composite fibre net that pre-needling is formed is laid on the upper and lower surface of composite construction base fabric respectively, with oval pricker to base fabric and fibre
Dimension net progress pinprick reinforcement, which carries out arranging again, to be prepared.
8. the preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 7, feature exist
In the woven knitting composite construction base fabric by using the plain stitch of stocking yarn braiding, interlock or rib construction
The plain woven structure of knitted structure and use warp thread and weft yarns weaves.
9. the preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 8, feature exist
In the fiber be one or both of inorfil or the short fibre of high-performance fiber fiber by grab cotton, shredding, mixing make
At silvalin or basaltic buiky yarn.
10. the preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 9, feature exist
In the fiber inorganic fiber or the short fibre of high-performance fiber, use 1.2-9D, length for the short fibre of 30-90.0mm, basalt is fine
Dimension selects zero twisted yarn, twisted yarn or rove.
11. the preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 10, feature
It is the line density of the fiber yarn in 3-10dtex, basalt yam stocking yarn selects twisted yarn, line density 150-
300dtex, the twist are that 35-50 twists/50 ㎝, and basalt warp, weft yarn select rove, line density 600-2400dtex.
12. the preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 7, feature exist
In the pre-needling condition are as follows: bestock: 1250 pieces/m, needling density 800-840 Ci/㎝2, depth of needling 11mm, fibre
Tie up net spee 4m/min.
13. the preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 7, feature exist
In the condition of needle thorn are as follows: needling density 210-2000 thorn/cm2, depth of needling 7-13mm, 1000-3000 pieces of bestock/
M, web output speed 0.5-2.5m/min；Pricker used has two ribs, and there are two briar tooth, briar tooth and briar tooth phases on every rib
Between arrange.
14. the preparation method of woven knitting composite construction based high-temp-resistant environmental protection filtrate according to claim 7, feature exist
It is to singe, be formed and coating in the arrangement；The coating is to coat the filter membrane with fine aperture in fabric surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367124.8A CN109572123A (en) | 2018-11-16 | 2018-11-16 | Woven knitting composite construction based high-temp-resistant environmental protection filtrate of one kind and preparation method thereof |
| PCT/CN2018/119191 WO2020098015A1 (en) | 2018-11-16 | 2018-12-04 | Woven and knitted composite structure base high-temperature resistant environmentally friendly filter material and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367124.8A CN109572123A (en) | 2018-11-16 | 2018-11-16 | Woven knitting composite construction based high-temp-resistant environmental protection filtrate of one kind and preparation method thereof |
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| Publication Number | Publication Date |
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| CN109572123A true CN109572123A (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN (1) | CN109572123A (en) |
| WO (1) | WO2020098015A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110987249A (en) * | 2019-12-09 | 2020-04-10 | 武汉纺织大学 | Fabric type pressure sensor with controllable performance and method for adjusting and controlling pressure sensing performance |
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