CN105396373A - Preparation method of multilayer filtering material - Google Patents
Preparation method of multilayer filtering material Download PDFInfo
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- CN105396373A CN105396373A CN201510701479.6A CN201510701479A CN105396373A CN 105396373 A CN105396373 A CN 105396373A CN 201510701479 A CN201510701479 A CN 201510701479A CN 105396373 A CN105396373 A CN 105396373A
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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
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/067—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of fibres or filaments
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10064—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising at least two glass sheets, only one of which being an outer 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
-
- 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
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
-
- 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
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0618—Non-woven
-
- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1207—Heat-activated adhesive
- B32B2037/1215—Hot-melt adhesive
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to a preparation method of a multilayer filtering material. The method concretely comprises the following steps: mixing feldspar, soda ash, boric acid and limestone to prepare glass balls, melting the glass balls in combined kilns, carrying out one-time wire drawing on bushing plates, carrying out flame blowing in combustion chambers to form glass fibers, allowing the glass fibers to go through a cotton collecting chamber and to be combined with an adhesive at an outlet in order to form a multilayer glass cotton felt, laying a nonwoven fabric on the lower surface of the cotton felt under the action of a negative pressure fan, allowing the obtained material to enter a curing furnace, and curing to obtain the multilayer glass fiber filtering material. The glass fibers prepared through a flame blowing technology in the invention have the advantages of good uniformity, small diameter and high strength; and the multilayer glass fiber filtering material composed of the multilayer glass fiber cotton felt and the nonwoven cloth has the advantages of filtration of impurities with small particle diameters, maintenance of large dust capacity, long service, wide application, and realization of guaranteeing of the stability and reliability and reduction of the production cost through one-short forming of the produced filtering material.
Description
Technical field
The present invention relates to a kind of filtering material preparation method, especially relate to a kind of multiple filtration material preparation method, belong to filtering material field.
Background technology
Along with improving constantly of Chinese society, economic development and living standards of the people, the quality requirement of people to atmospheric environment will be more and more higher, had new cognition to the pure and fresh degree of air, had higher requirement to air-filtering ability, the application of filtering material is also more and more extensive.
Filtration is that liquid (or gas) in motive force or other External Force Acting low suspension liquid is through filtering material, solid particle and other materials are filtered medium and retain, thus make the operation that solid and other materials are separated with liquid (or gas).Therefore, require higher to filtering material, good mechanical performance, serviceability and strainability need be had.
Publication number is that the Chinese patent of 101332385A provides a kind of filtering material; it comprises as the upper and lower two-layer nonwoven of base material and compound and one or more layers composite bed therebetween; be characterized in; composite bed is made up of the granular activated carbon be wrapped between two-layer fibrous adhesive; seed activity layer of charcoal by one by one independently activated carbon granule be paved into; this structure had both kept the adsorptivity of active carbon, maintained again hardness and the deflection of filtering material.But this material structure is complicated, and particle capture efficiency is lower, and meanwhile, active carbon is lower as sorbing material dust containing capacity, the life-span of material is lower.
The Chinese patent that publication number is 1721035A provides a kind of manufacture method of puffy glass fiber filtration material, that glass is shot out formation filament by micropore jet under pressure after melting, then add that binding agent bonds, through multilayer build-up fluffy, and form smooth skin shape epidermis on two surfaces, finally add fire retardant on its surface.This product has good fire resistance, and manufacture craft is simple, but its glass fiber diameter prepared and porosity are comparatively large, can not the less particle of filter diameter, and filter effect is bad.
Glass fibre due to high-strength, corrosion-resistant, high temperature resistant, smooth hydrophobic, dimensionally stable indeformable, after dip coating process, improve again its wearability, be therefore a kind of desirable filtering material.It is compared with linen-cotton, more high temperature resistant and corrosion-resistant; Compared with chemical fibre, intensity is higher and size is more stable.Especially high temperature resistant, missing of ignition, do not burn, natural fiber, chemical fibre are incomparable especially, and therefore, glass fiber filter material achieves development at full speed.
The production method of current blanket of glass wool is mainly divided into two kinds, is centrifugal process and flame method respectively.Centrifugal process glass fiber diameter is comparatively large, intensity is low, and filter effect is bad.Flame method mineral wool is that melten glass is made glass marble, rod or block, it is made again to melt, form once silk, deliver in the flame of combustion chamber ejection under the traction of rubber roll, in cotton collecting chamber, outlet mixes with binding agent, deposits on guipure, finally, through curing oven solidification, make blanket of glass wool.The features such as burner blowing process production scale is little, small investment, occupation of land face are little, meanwhile, the glass fiber diameter adopting burner blowing process to prepare is little, flexible large and intensity high, therefore, the glass fibre that filtering material usually selects flame method to prepare.
Glass fiber composite filter material makes filter course with ultra-fine fibre glass, and do protective layer on its two sides or one side compound with synthetic fibers or natural fiber, thus improve the mechanical strength of filter paper.After compound, filter efficiency is high, dust containing capacity is large, resistance is little, mechanical strength is large, chemically stable high.Can be used for the solid impurity in filter oil, water, also can be used for the dust in filtered atmospheric and various particulate.Filter at senior aero oil, be used widely in the hydraulic oil filtering, nuclear power station filtration, pharmacy, chemical industry etc. of boats and ships and heavy-duty machinery Hydraulic Power Transmission System.
The glass fibre that the present invention adopts burner blowing process to prepare, by optimizing blowing process, obtains that fibre diameter is thin, the fiber of all even excellent performance of fiber architecture.Adopt combined type flame blowing device, the processbearing astrocyte compound glass cellucotton felt of the characteristic parameter ejection different-diameter of adjustment winding-up flame, lay the non-woven fabrics composition multistage composite type glass fiber filter cloth with filterability at glass fibre cotton felt.This glass fiber filter cloth has low pressure loss, high dirt capacity and high efficiency of dust filtration.
Summary of the invention
The object of the invention is to: a kind of multiple filtration material preparation method is provided, by combined type flame blowing device, the cotton felt of fiber multilayer of different-diameter of jetting, one-shot forming, simple and convenient.Preparation filter capacity is strong, efficiency is high and the filtering material of long service life, and is the supporting special purpose device of the method.Following technical scheme is that layer glass cellucotton felt of jetting is set forth for example.
The technical scheme adopted for realizing object of the present invention is: provide a kind of multiple filtration material.
A kind of multiple filtration material preparation method, is characterized in that carrying out according to following steps:
1. the raw material such as feldspar, soda ash, boric acid, brium carbonate, potash and lime stone mixes by a certain percentage, through melting, makes glass marble; Described glass marble diameter is 18 ~ 21mm, and chemical composition is: SiO
2be 60% ~ 65%, Al
2o
3be 3.5% ~ 5.0%, CaO be 4.0% ~ 4.5%, Na
2o is 15% ~ 20%, B
2o
3be 5% ~ 10%, BaO be 0% ~ 1.0%;
2. glass marble is poured respectively into melting in two kilns and obtain glass metal, respectively bushing is directed to the glass metal in two kilns and carries out a wire drawing, its wire drawing makes it disperse through rubber roll, and secondary wire drawing is carried out in the flame winding-up of combustion chamber becomes secondary silk, enters cotton collecting chamber; Described bushing be nickel-cadmium or platinum-rhodium alloy, bushing aperture is 3.5 ~ 4mm, bushing hole count 220 ~ 250; Described combustion gas is natural gas, liquefied gas or liquid-fuel oil; Described combustion chamber has two, and the flame of ejection is the mist of combustion gas and air, and its ratio is 3 ~ 4: 1;
3. secondary silk passes through from cotton collecting chamber, mix with binding agent in exit, become blanket of glass wool, cotton felt, under the effect of negative-pressure air fan, is adsorbed on the non-woven fabrics on the guipure upper strata collecting hopper body, along with the motion of collection web, the cellucotton felt of two kiln ejections is superimposed upon non-woven fabrics upper strata, through roller bearing, under the effect of negative-pressure air fan and binding agent, blanket of glass wool and non-woven fabrics are combined closely; Described binding agent is phenolic resins, epoxy resin or acrylate, and solid content is 50% ~ 65%, and viscosity is 11/s ~ 13/s; Described non-woven fabrics take polypropylene as melt spraying non-woven fabrics prepared by raw material, and density is 35 ~ 50g/m
2, thickness is 1.0 ~ 2.5mm, and porosity is 75% ~ 85%;
4. the cotton felt of compound glass moves together with guipure with non-woven fabrics, enters curing oven solidification, through coiler clot, becomes compound glass fiber filter material; The temperature of described curing oven is 180 ~ 220 DEG C, and carrier bar speed is 15 ~ 20m/min, and hardening time is 3 ~ 5min.
The flame combustion chamber temperature of described below is 1000 ~ 1250 DEG C, and the length of flame is 300 ~ 350mm, and pressure is 0.20 ~ 0.25MPa, and injecting velocity is 200 ~ 250m/s; Prepared glass fiber diameter is 4 ~ 6 μm, and the thickness of blanket of glass wool is 3 ~ 7mm.
The flame combustion chamber temperature of described top is 1300 ~ 1500 DEG C, and the length of flame is 350 ~ 400mm, and pressure is 0.25 ~ 0.30MPa, and injecting velocity is 250 ~ 300m/s; Prepared glass fiber diameter is 2 ~ 4 μm, and the thickness of blanket of glass wool is 3 ~ 7mm.
Thickness 6 ~ the 15mm of described a kind of compound glass fiber filter material, grammes per square metre 40 ~ 100g/m
2, the hot strength of warp-wise, broadwise is all at more than 700N/5cm.
The present invention compared with prior art, has the following advantages:
1. optimize the mixed proportion of natural gas and air, pressure, temperature and injecting velocity by simulation and experiment, glass fibre uniformity is better, diameter is less and intensity is higher to adopt blowing process to prepare.
2. the multistage glass fiber filter material that forms of compound glass cellucotton felt and non-woven fabrics, can the little impurity of filtering particle diameter, and keep again larger dirt capacity, filter efficiency is high, long service life, and Application comparison is extensive.
3. the present invention is easy to industrial production, produces filtering material one-shot forming, namely ensures the stable of product and reliability, again reduces production cost.
4. the dust efficiency of dust collection of the present invention to particle diameter < 5 μm reaches 99.8%, reaches 99.7% to the dust efficiency of dust collection of particle diameter < 2.5 μm.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of multiple filtration material preparation facilities.
Detailed description of the invention
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims and limited.
Embodiment 1
A kind of device preparing glass fiber filter material as shown in Figure 1, it comprises: kiln 10, bushing 20, once silk 30, rubber roll 40, combustion chamber 50, cotton collecting chamber 60, secondary silk 70, adhesive 80, blanket of glass wool 90,91, collects hopper body 100, negative-pressure air fan 110, conveyer 120, collection web 130, non-woven fabrics 140, roller bearing 150, curing oven 160, coiler 170.
A kind of multiple filtration material preparation method, is characterized in that carrying out according to following steps:
1. the raw material such as feldspar, soda ash, boric acid, brium carbonate, potash and lime stone mixes by a certain percentage, through melting, makes glass marble; Described glass marble diameter is 20mm, and chemical composition is: SiO
2be 64%, Al
2o
3be 4.5%, CaO be 4.3%, Na
2o is 18%, B
2o
3be 7%, BaO be 0.6%;
2. glass marble is poured respectively into melting in two kilns and obtain glass metal, respectively bushing is directed to the glass metal in two kilns and carries out a wire drawing, its wire drawing makes it disperse through rubber roll, and secondary wire drawing is carried out in the flame winding-up of combustion chamber becomes secondary silk, enters cotton collecting chamber; Described bushing be nickel-cadmium, bushing aperture is 3.8mm, bushing hole count 240; Described combustion gas is natural gas; Described combustion chamber has two, and the flame of ejection is the mist of combustion gas and air, and its ratio is 3: 1;
3. secondary silk passes through from cotton collecting chamber, mix with binding agent in exit, become blanket of glass wool, cotton felt, under the effect of negative-pressure air fan, is adsorbed on the non-woven fabrics on the guipure upper strata collecting hopper body, along with the motion of collection web, the cellucotton felt of two kiln ejections is superimposed upon non-woven fabrics upper strata, through roller bearing, under the effect of negative-pressure air fan and binding agent, blanket of glass wool and non-woven fabrics are combined closely; Described binding agent is phenolic resins, and solid content is 60%, and viscosity is 12/s; Described non-woven fabrics take polypropylene as melt spraying non-woven fabrics prepared by raw material, and density is 40g/m
2, thickness is 2.0mm, and porosity is 80%;
4. the cotton felt of compound glass moves together with guipure with non-woven fabrics, and enter curing oven solidification, coiler clot, becomes compound glass fiber filter material; The temperature of described curing oven is 200 DEG C, and carrier bar speed is 18m/min, and hardening time is 4min.
The flame combustion chamber temperature of described below is 1100 DEG C, and the length of flame is 320mm, and pressure is 0.22MPa, and injecting velocity is 230m/s; Prepared glass fiber diameter is 5 μm, and the thickness of blanket of glass wool is 5mm.
The flame combustion chamber temperature of described top is 1400 DEG C, and the length of flame is 370mm, and pressure is 0.27MPa, and injecting velocity is 280m/s; Prepared glass fiber diameter is 3 μm, and the thickness of blanket of glass wool is 5mm.
The thickness 8mm of described a kind of compound glass fiber filter material, grammes per square metre 600g/m
2, the hot strength 900N/5cm of warp-wise, the hot strength 950N/5cm of broadwise.
Above are only the single detailed description of the invention of the present invention, but design concept of the present invention is not limited thereto, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content not departing from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (4)
1. a multiple filtration material preparation method, is characterized in that carrying out according to following steps:
1. the raw material such as feldspar, soda ash, boric acid, brium carbonate, potash and lime stone mixes by a certain percentage, through melting, makes glass marble; Described glass marble diameter is 18 ~ 21mm, and chemical composition is: SiO
2be 60% ~ 65%, Al
2o
3be 3.5% ~ 5.0%, CaO be 4.0% ~ 4.5%, Na
2o is 15% ~ 20%, B
2o
3be 5% ~ 10%, BaO be 0% ~ 1.0%;
2. glass marble is poured respectively into melting in two kilns and obtain glass metal, respectively bushing is directed to the glass metal in two kilns and carries out a wire drawing, its wire drawing makes it disperse through rubber roll, and secondary wire drawing is carried out in the flame winding-up of combustion chamber becomes secondary silk, enters cotton collecting chamber; Described bushing be nickel-cadmium or platinum-rhodium alloy, bushing aperture is 3.5 ~ 4mm, bushing hole count 220 ~ 250; Described combustion gas is natural gas, liquefied gas or liquid-fuel oil; Described combustion chamber has two, and the flame of ejection is the mist of combustion gas and air, and its ratio is 3 ~ 4: 1;
3. secondary silk passes through from cotton collecting chamber, mix with binding agent in exit, become blanket of glass wool, cotton felt, under the effect of negative-pressure air fan, is adsorbed on the non-woven fabrics on the guipure upper strata collecting hopper body, along with the motion of collection web, the cellucotton felt of two kiln ejections is superimposed upon non-woven fabrics upper strata, through roller bearing, under the effect of negative-pressure air fan and binding agent, blanket of glass wool and non-woven fabrics are combined closely; Described binding agent is phenolic resins, epoxy resin or acrylate, and solid content is 50% ~ 65%, and viscosity is 11/s ~ 13/s; Described non-woven fabrics take polypropylene as melt spraying non-woven fabrics prepared by raw material, and grammes per square metre is 35 ~ 50g/m
2, thickness is 1.0 ~ 2.5mm, and porosity is 75% ~ 85%;
4. the cotton felt of compound glass moves together with guipure with non-woven fabrics, enters curing oven solidification, through coiler clot, becomes compound glass fiber filter material; The temperature of described curing oven is 180 ~ 220 DEG C, and carrier bar speed is 15 ~ 20m/min, and hardening time is 3 ~ 5min.
2. a kind of multiple filtration material preparation method according to claim 1, it is characterized in that the flame combustion chamber temperature of below is 1000 ~ 1250 DEG C, the length of flame is 300 ~ 350mm, and pressure is 0.20 ~ 0.25MPa, and injecting velocity is 200 ~ 250m/s; Prepared glass fiber diameter is 4 ~ 6 μm, and the thickness of blanket of glass wool is 3 ~ 7mm.
3. a kind of multiple filtration material preparation method according to claim 1, it is characterized in that the flame combustion chamber temperature of top is 1300 ~ 1500 DEG C, the length of flame is 350 ~ 400mm, and pressure is 0.25 ~ 0.30MPa, and injecting velocity is 250 ~ 300m/s; Prepared glass fiber diameter is 2 ~ 4 μm, and the thickness of blanket of glass wool is 3 ~ 7mm.
4. a kind of multiple filtration material preparation method according to claim 1, is characterized in that the thickness 6 ~ 15mm of compound glass fiber filter material, grammes per square metre 40 ~ 100g/m
2, the hot strength of warp-wise, broadwise is all at more than 700N/5cm.
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|---|---|---|---|
| CN201510701479.6A CN105396373A (en) | 2015-10-22 | 2015-10-22 | Preparation method of multilayer filtering material |
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Cited By (4)
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| CN106283910A (en) * | 2016-09-08 | 2017-01-04 | 南京航空航天大学 | A kind of environment-friendly highly efficient low flow resistance filter paper and preparation method thereof |
| CN108589027A (en) * | 2018-04-20 | 2018-09-28 | 苏州宏久航空防热材料科技有限公司 | A kind of light-weight water-proof composite glass fiber blanket and preparation method thereof |
| CN111495036A (en) * | 2020-03-27 | 2020-08-07 | 南京玻璃纤维研究设计院有限公司 | Glass fiber composite filter material, preparation method and application thereof |
| CN114031300A (en) * | 2021-12-14 | 2022-02-11 | 重庆纤维研究设计院股份有限公司 | Glass for glass fiber, and method for producing glass fiber |
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| CN108589027A (en) * | 2018-04-20 | 2018-09-28 | 苏州宏久航空防热材料科技有限公司 | A kind of light-weight water-proof composite glass fiber blanket and preparation method thereof |
| CN111495036A (en) * | 2020-03-27 | 2020-08-07 | 南京玻璃纤维研究设计院有限公司 | Glass fiber composite filter material, preparation method and application thereof |
| CN111495036B (en) * | 2020-03-27 | 2022-03-18 | 南京玻璃纤维研究设计院有限公司 | Glass fiber composite filter material, preparation method and application thereof |
| CN114031300A (en) * | 2021-12-14 | 2022-02-11 | 重庆纤维研究设计院股份有限公司 | Glass for glass fiber, and method for producing glass fiber |
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