CN106268031A - A kind of fiber crops/graphite composite high-performance filtering material and preparation method thereof - Google Patents
A kind of fiber crops/graphite composite high-performance filtering material and preparation method thereof Download PDFInfo
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- CN106268031A CN106268031A CN201610645096.6A CN201610645096A CN106268031A CN 106268031 A CN106268031 A CN 106268031A CN 201610645096 A CN201610645096 A CN 201610645096A CN 106268031 A CN106268031 A CN 106268031A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
-
- 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
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
-
- 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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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of fiber crops/graphite composite high-performance filtering material, belong to filtering material field, including upper nonwoven layer, fiber crops/graphite fibre composite bed and lower nonwoven layer, described fiber crops/graphite fibre composite bed is positioned at described upper nonwoven layer and the centre of described lower nonwoven layer.The invention has the beneficial effects as follows: by flaxen fiber and graphite fibre combing, mixing combing, lapping, acupuncture becomes drainage screen felt, by upper and lower two-layer nonwoven layer reinforcement effect, it is prepared as a kind of composite highly effective high performance filtering material felt, give the feature that its filtering accuracy is high, filtration resistance is low and filter efficiency is high, utilize fiber odd-shaped cross section adsorption and fiber itself to have chemical to filter simultaneously, opposing chemical attack effect, gives filter felt and has high efficiency filter performance and good filtering both chemical pollutant performance.
Description
Technical field
The present invention relates to filtering material field, a kind of composite highly effective high-performance filtration material and system thereof
Preparation Method.
Background technology
Because environmental problem constantly deteriorates, haze is increasingly severe, and PM2.5 causes the concern of all departments.According to statistics, 2013
The first half of the year in year, PM2.5 part-time in Beijing was up to 950mg/m3, 74 city PM2.5 of China are 70mg/m3, WHO
Require as 25mg/m3, it is serious that the city such as Beijing produces haze situation, serious to environment, has had a strong impact on people
The quality of life of the people.So pore size filter and filtering accuracy to filtering material are had higher requirement, generally conventional acupuncture
Filtering accuracy is 99%, and overlay film is 99.999%, and the filtering accuracy of high efficiency filter material is 99.99-99.999%.
Wherein, the shortcoming that overlay film has poor air permeability, cost is high and resistance is high, high efficiency filter material is improving filter efficiency
With under filtering accuracy premise, overcome poor air permeability, the technical barriers such as resistance is high the most simultaneously.
The ultimate principle of high-efficiency air filtering material dedusting is to utilize the irregular form of filter media fibre itself, gives it bigger
Specific surface area, by the Coulomb force between molecule, increases the adsorption to dust, especially less to granularity, micropartical
Fiber filters, and forms one layer of fine and close dust cake, and microfibre net can play high efficiency filter effect.With traditional machinery
Type air filter is compared, and when identical effect, its resistance is only the 10-30% of mechanical type filter, more empty than mechanical type
Air filter about order of magnitude lower, and filter efficiency can be promoted to 99.99%-99.999%.
Meanwhile, the filtering material of existing market substantially has certain physical filtering effect, but inhales substantially free of chemistry
The attached filter effect that waits, or portioned product uses chemical reagent to process absorption, but exist not environmentally and without problems such as sustainabilities.
Along with economic development, living standard improves, has higher requirement filtering material, does not require nothing more than efficient physical and filters effect
Rate, proposes higher requirement also for chemical filtering and absorption thereof.Natural fiber is used to be used in filtering material industry also at present
Compare less.
Summary of the invention
The first object of the present invention is to provide a kind of composite high-performance filtering material, and it overcomes fiber crops, graphite fibre Gao Mo
Amount, is difficult to processing characteristic, gives filtering material simultaneously and has that filtering accuracy is high, filtration resistance is low, filter efficiency is high, also having concurrently
The property learned filters, natural anticorrosion loses, absorption abnormal flavour effect.
In order to reach above-mentioned purpose, the solution of the present invention is:
A kind of fiber crops/graphite composite high-performance filtering material, including upper nonwoven layer, fiber crops/graphite fibre composite bed and under
Nonwoven layer, described fiber crops/graphite fibre composite bed is positioned at described upper nonwoven layer and the centre of described lower nonwoven layer.
Preferably, described fiber crops/graphite fibre composite bed grammes per square metre is 600-1200g/m2；Thickness is 2.5-4.5mm.
Preferably, the material of described upper nonwoven layer and described lower nonwoven layer is PET or PPS fiber；Grammes per square metre is
150-300g/m2；Thickness is 0.8-1.2mm.
Preferably, described fiber crops/graphite fibre composite fibre layer includes that flaxen fiber and graphite fibre, described flaxen fiber content account for
The 40-80% of described composite fibre layer grammes per square metre, graphite fibre accounts for the 20-60% of described fiber crops/graphite fibre composite bed grammes per square metre.
Preferably, described flaxen fiber average fineness is 5um-15um, and fibre length is 20-82mm；Described graphite fibre line
Density is 1.0-3.0D, and fibre length is 51-76mm.
The second object of the present invention is to provide the preparation method of above-mentioned fiber crops/graphite composite high-performance filtering material, described
By pinprick reinforcement and functional between fiber crops/graphite fibre composite bed and described upper nonwoven layer and described lower nonwoven layer
Final finishing obtains described filtering material.Using the double paving technique of double comb, it is non-to allow fiber crops/graphite composite fiber web stacking is added in upper and lower two-layer
Woven cloths stratum reticulare, carries out pinprick reinforcement.Levels nonwoven layer is allowed to serve the effect of protection fiber crops/graphite composite fibre layer,
Avoid, in filter process, being broken up by air-flow.
Preferably, described pinprick reinforcement technique, use 4 needing machines, latter two is that dystopy is to thorn machine, first acupuncture frequency
Rate and the degree of depth are respectively 150-250r/min, 12-14mm, and second punch frequency and the degree of depth are respectively 200-350r/min, 7-
9mm, the 3rd road punch frequency and the degree of depth be respectively 250-400r/min, 4-6mm, and the 4th road punch frequency and the degree of depth are respectively
250-400r/min、2-4mm。
Preferably, described functional topical finishing includes press polish successively, singes and impregnate.
Preferably, because Nomex exists bigger fragility, described press polish uses soft rubber roller rod gently to press.
Preferably, natural gas is used to singe processs, the speed singed by firepower 7-7.5bar and the Nomex of control flame
Degree 35-40m/min controls the operation singed, to ensure cloth cover effect.By burning surface hairiness, fiber surface is made to keep one
Determining smoothness, this can reduce adsorbing powder dust filter bag surface, can improve cleaning efficiency simultaneously.
Preferably, described dipping uses soft rubber roller, surfacing, reduces adhesion, effectively controls impregnation resin content.Pressure roller is
0.5MPa, grammes per square metre is 20-30g/m2, speed is 5m/min, employing feature of environmental protection high-temp glue such as soft acrylic glue: silicone oil: silicon
Alkane coupling agent: water composite solution etc. so that it is graphite fibre fully bonds with flaxen fiber, plays enhancing compound action.
Preferably, the feature of environmental protection high-temp glue that described dipping uses, each component weight ratio is soft acrylic glue: silicone oil:
Silane coupler: water=(2-6): (0.5-2.0): (10-15): (75-87).
Preferably, described fiber crops/graphite fibre composite bed by flaxen fiber, graphite fibre through shredding, mixing, carding, paving
Net, pre-needling molding and obtain.
Preferably, described preparation fiber crops/graphite composite fibre composite bed pre-needling molding uses 1 needing machine, uses abnormity
Taper pin, punch frequency and the degree of depth are respectively 250-500r/min, 6-8mm.
Preferably, in laid process, owing to fibre cohesion is little, between each dolly, drawing-off is little, little vehicle speed 25-on this
40m/min, lapping carriage 30-45m/min, under little vehicle speed 8-15m/min.
Preferably, because poly-graphite fibre high-strength and high-modulus amount, single fiber curling is little, uses titanium alloy pin at carding process
Cloth, carding machine speed is 600-800r/min.
Preferably, in described opening processes, first carrying out pre-shredding twice at blade type pin cloth, flaxen fiber uses sawtooth pattern pin cloth
Carry out pre-shredding together so that it is the abundant shredding of fiber, then mix with graphite fibre together with pre-shredding, adjust opening, simultaneously
NON IONIC SOFTNER is added in mixed process.
Compared with prior art, the invention has the beneficial effects as follows:
After using said structure, a kind of composite highly effective high-performance filtration material that the present invention relates to and preparation method thereof, its
By in flaxen fiber and graphite fibre combing, mixing combing, lapping, acupuncture becomes filtering material, non-woven by upper and lower two-layer
Layer of cloth reinforcement effect, is prepared as a kind of composite highly effective high performance filtering material felt, gives that its filtering accuracy is high, filtration resistance is low
The feature high with filter efficiency, utilizes fiber odd-shaped cross section adsorption and fiber filter to have chemical simultaneously and filters, resist and support
Resist chemical effect, gives filter felt and has high efficiency filter functional filtering both chemical pollutant performance.
Accompanying drawing explanation
Fig. 1 is the structure chart that the present invention is preferred；
Wherein, 1, upper nonwoven layer；2, fiber crops/graphite fibre composite bed；3, lower nonwoven layer.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that concrete reality described herein
Execute example only in order to explain the present invention, be not intended to limit the present invention.
A kind of fiber crops/graphite composite high-performance filtering material, including upper nonwoven layer 1, fiber crops/graphite fibre composite bed 2 and
Lower nonwoven layer 3, described fiber crops/graphite fibre composite bed 2 is positioned at described upper nonwoven layer 1 and described lower nonwoven layer 3
Centre.
One preferred embodiment in, described fiber crops/graphite fibre composite bed grammes per square metre is 600-1200；Thickness is 2.5-
4.5mm。
One preferred embodiment in, the material of described upper nonwoven layer and described lower nonwoven layer be PET or
PPS fiber；Grammes per square metre is 150-300g/m2；Thickness is 0.8-1.2mm.
One preferred embodiment in, described fiber crops/graphite fibre composite fibre layer includes flaxen fiber and graphite fibre, institute
Stating flaxen fiber content and account for the 40-80% of described composite fibre layer grammes per square metre, graphite fibre accounts for described fiber crops/graphite fibre composite bed grammes per square metre
20-60%.
One preferred embodiment in, described flaxen fiber average fineness is 5um-15um, and fibre length is 20-82mm；
Described graphite fibre line density is 1.0-3.0D, and fibre length is 51-76mm.
The present embodiment also provides for the preparation method of above-mentioned fiber crops/graphite composite high-performance filtering material, described fiber crops/graphite fibre
Obtained by pinprick reinforcement and functional topical finishing between composite bed 2 and described upper nonwoven layer 1 and described lower nonwoven layer 3
To described filtering material.Use the double paving technique of double comb, allow fiber crops/graphite composite fibre stratum reticulare 2 be superimposed upon upper and lower two-layer non-weaving cloth
Stratum reticulare, carries out pinprick reinforcement.Levels nonwoven layer is allowed to serve the effect of protection fiber crops/graphite composite fibre layer, it is to avoid
In filter process, broken up by air-flow.
One preferred embodiment in, described pinprick reinforcement technique, use 4 needing machines, latter two is that dystopy is to thorn
Machine, first punch frequency and the degree of depth are respectively 150-250r/min, 12-14mm, second punch frequency and the degree of depth and are respectively
200-350r/min, 7-9mm, the 3rd road punch frequency and the degree of depth be respectively 250-400r/min, 4-6mm, the 4th road acupuncture frequency
Rate and the degree of depth are respectively 250-400r/min, 2-4mm.
One preferred embodiment in, described functional topical finishing includes press polish successively, singes and impregnate.
One preferred embodiment in, because of Nomex exist bigger fragility, described press polish use soft rubber roller rod enter
The light pressure of row.
One preferred embodiment in, use natural gas to singe processs, by control the firepower 7-7.5bar of flame with
Speed 35-40m/min that Nomex is singed controls the operation singed, to ensure cloth cover effect.By burning surface hairiness, make
Fiber surface keeps certain smoothness, and this can reduce adsorbing powder dust filter bag surface, can improve cleaning efficiency simultaneously.
One preferred embodiment in, described dipping use soft rubber roller, surfacing, reduce adhesion, effectively control
Impregnation resin content processed.Pressure roller is 0.5MPa, and grammes per square metre is 20-30g/m2, speed is 5m/min, uses feature of environmental protection high-temp glue such as soft propylene
Acid glue: silicone oil: silane coupler: water composite solution etc. so that it is graphite fibre fully bonds with flaxen fiber, plays enhancing compound
Effect.
One preferred embodiment in, described dipping use feature of environmental protection high-temp glue, each component weight ratio is soft third
Olefin(e) acid glue: silicone oil: silane coupler: water=(2-6): (0.5-2.0): (10-15): (75-87).
One preferred embodiment in, described fiber crops/graphite fibre composite bed by flaxen fiber, graphite fibre through shredding, mixed
Conjunction, carding, lapping, pre-needling molding and obtain.
One preferred embodiment in, described preparation fiber crops/graphite composite bed pre-needling molding use 1 needing machine, adopt
Profiled taper pin, punch frequency and the degree of depth is used to be respectively 250-500r/min, 6-8mm.
One preferred embodiment in, in laid process, owing to fibre cohesion is little, between each dolly, drawing-off is little,
Little vehicle speed 25-40m/min, lapping carriage 30-45m/min on this, under little vehicle speed 8-15m/min.
One preferred embodiment in because poly-graphite fibre high-strength and high-modulus amount, single fiber curling is little, in combing
Cheng Caiyong titanium alloy pin cloth, carding machine speed is 600-800r/min.
One preferred embodiment in, in described opening processes, first carry out pre-shredding twice, flaxen fiber at blade type pin cloth
Use sawtooth pattern pin cloth to carry out pre-shredding together so that it is the abundant shredding of fiber, then mix with graphite fibre together with pre-shredding, adjust
Opening, adds NON IONIC SOFTNER in mixed process simultaneously.
The preparation method of several fiber crops/graphite composite high-performance filtering material is described below, is specifically described high-performance of the present invention
The technique of filtering material and performance characteristics.
Embodiment one:
Shredding mixes: this nonwoven layer with 40% flaxen fiber and the graphite fibre of 60%, this flaxen fiber average the most carefully
Degree is 5um-15um, and fibre length is 20-82mm, and graphite fibre line density is 1.0-3.0D, and fibre length is 51-76mm, first
Carrying out pre-shredding twice at blade type pin cloth, flaxen fiber uses sawtooth pattern pin cloth to carry out pre-shredding together so that it is the abundant shredding of fiber,
Mix together with pre-shredding with graphite fibre again, adjust opening, in mixed process, add NON IONIC SOFTNER simultaneously.
Carding: because poly-graphite fibre high-strength and high-modulus amount, single fiber curling is little, uses titanium to close at carding process
Acupuncture needle cloth, carding machine speed is 750r/min.
Cross lapping: fibre cohesion is little, between each dolly, drawing-off is little.In laid process, owing to fibre cohesion is little,
Between each dolly, drawing-off is little, little vehicle speed 25m/min, lapping carriage 30m/min on this, under little vehicle speed 10m/min.
Pre-needling: cross lapping flaxen fiber out and graphite fibre composite fiber web, through pre-needling, are prepared as fiber crops/graphite
Fiber composite.
The double paving of double combs: use the double paving technique of double comb, makes fiber crops/graphite fibre composite bed and two-layer out non-from carding machine
Woven webs is combined, and controlling nonwoven web grammes per square metre is 50g/m2, lapping 5 layers altogether.Fiber crops/graphite fibre composite laminate is allowed to be added in two
In the middle of layer nonwoven layer.Non-woven layer is allowed to serve the effect of protection Nomex, it is to avoid in filter process, to be rushed by air-flow
Dissipate.
Pinprick reinforcement: use 4 needing machines, in acupuncture course, uses 4 needing machines, uses profiled taper pin, first
Punch frequency and the degree of depth are respectively 70r/min, 8-12mm, when the later stage reinforces into Nomex filtering material, use 4 acupunctures
Machine, latter two is dystopy to thorn machine, and first punch frequency and the degree of depth are respectively 150r/min, 12mm, second punch frequency
And the degree of depth is respectively 250r/min, 7mm, the 3rd road punch frequency and the degree of depth are respectively 300r/min, 4mm, the 4th road acupuncture frequency
Rate and the degree of depth are respectively 300r/min, 3mm.
Functional processing
1, press polish: because Nomex exists bigger fragility, the present invention uses soft rubber roller rod gently to press.Upper roll temperature is
90, lower roll temperatures is 120, and pressure is 0.25Mpa, and speed is 8.0m/min.
2. singe: use natural gas to singe processs, the speed singed by firepower 6bar and the Nomex of control flame
35m/min controls the operation singed, to ensure cloth cover effect.By burning surface hairiness, fiber surface is made to keep certain light
Slippery, this can reduce adsorbing powder dust filter bag surface, can improve cleaning efficiency simultaneously.
3. dipping: use soft rubber roller, surfacing, reduce adhesion, effectively control impregnation resin content.Pressure roller is 0.5MPa,
Grammes per square metre is 20g/m2, speed is 5m/min, employing feature of environmental protection high-temp glue such as soft acrylic glue: silicone oil: silane coupler: water
=4:1:12:83 etc. so that it is graphite fibre fully bonds with flaxen fiber, play enhancing compound action.
Embodiment two:
Shredding mixes: this nonwoven layer with 60% flaxen fiber and the graphite fibre of 40%, elder generation is carried out at blade type pin cloth
Pre-shredding twice, flaxen fiber uses sawtooth pattern pin cloth to carry out pre-shredding together so that it is the abundant shredding of fiber, then with graphite fibre
Mix pre-shredding together, adjust opening, in mixed process, add NON IONIC SOFTNER simultaneously.
Carding: because poly-graphite fibre high-strength and high-modulus amount, single fiber curling is little, uses titanium alloy at carding process
Pin cloth, carding machine speed is 750r/min.
Cross lapping: fibre cohesion is little, between each dolly, drawing-off is little.In laid process, owing to fibre cohesion is little,
Between each dolly, drawing-off is little, little vehicle speed 35m/min, lapping carriage 40m/min on this, under little vehicle speed 12m/min.
Pre-needling: cross lapping flaxen fiber out and graphite fibre composite fiber web, through pre-needling, are prepared as fiber crops/graphite
Fiber composite.
The double paving of double combs: use the double paving technique of double comb, makes fiber crops/graphite fibre composite bed and two-layer out non-from carding machine
Woven webs is combined, and controlling non-woven every layer of fibre web grammes per square metre is 40g/m2, lapping 5 layers altogether.Allow fiber crops/graphite fibre composite bed superposition
In the middle of two-layer nonwoven layer.Non-woven layer is allowed to serve the effect of protection Nomex, it is to avoid in filter process, by air-flow
Break up.
Pinprick reinforcement: use 4 needing machines, in acupuncture course, uses 4 needing machines, uses profiled taper pin, first
Punch frequency and the degree of depth are respectively 120r/min, 10mm, when the later stage reinforces into Nomex filtering material, use 4 needing machines,
Latter two is dystopy to thorn machine, and first punch frequency and the degree of depth are respectively 220r/min, 14mm, second punch frequency and deep
Degree is respectively 300r/min, 8mm, and the 3rd road punch frequency and the degree of depth be respectively 350r/min, 5mm, the 4th road punch frequency and
The degree of depth is respectively 300r/min, 3mm.
Functional processing
1, press polish: because Nomex exists bigger fragility, the present invention uses soft rubber roller rod gently to press.Upper roll temperature is
100, lower roll temperatures is 130, and pressure is 0.3Mpa, and speed is 8.0m/min.
2. singe: use natural gas to singe processs, the speed singed by firepower 5.5bar and the Nomex of control flame
35m/min controls the operation singed, to ensure cloth cover effect.By burning surface hairiness, fiber surface is made to keep certain light
Slippery, this can reduce adsorbing powder dust filter bag surface, can improve cleaning efficiency simultaneously.
3. dipping: use soft rubber roller, surfacing, reduce adhesion, effectively control impregnation resin content.Pressure roller is 0.5MPa,
Grammes per square metre is 20-30g/m2, speed is 5m/min, employing feature of environmental protection high-temp glue such as soft acrylic glue: silicone oil: silane coupled
Agent: water=5:1.5:13.5:80 etc. so that it is graphite fibre fully bonds with flaxen fiber, plays enhancing compound action.
Described above illustrate and describes the preferred embodiments of the present invention, as previously mentioned, it should be understood that the present invention not office
Be limited to form disclosed herein, be not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and
Environment, and can be changed by above-mentioned teaching or the technology of association area or knowledge in invention contemplated scope described herein
Dynamic.And the change that those skilled in the art are carried out and change are without departing from the spirit and scope of the present invention, the most all should be appended by the present invention
In scope of the claims.
Claims (10)
1. fiber crops/graphite composite high-performance filtering material, it is characterised in that include that nonwoven layer, fiber crops/graphite fibre are multiple
Closing layer and lower nonwoven layer, described fiber crops/graphite fibre composite bed is positioned at described upper nonwoven layer and described lower non-weaving cloth
The centre of layer.
2. a kind of fiber crops/graphite composite high-performance filtering material as claimed in claim 1, it is characterised in that described fiber crops/graphite is fine
Dimension composite bed grammes per square metre is 600-1200g/m2；Thickness is 2.5-4.5mm.
3. a kind of fiber crops/graphite composite high-performance filtering material as claimed in claim 1, it is characterised in that described fiber crops/graphite is fine
Dimension composite fibre layer includes that flaxen fiber and graphite fibre, described flaxen fiber content account for the 40-80% of described composite fibre layer grammes per square metre,
Graphite fibre accounts for the 20-60% of described fiber crops/graphite fibre composite bed grammes per square metre.
4. a kind of fiber crops/graphite composite high-performance filtering material as claimed in claim 1, it is characterised in that described flaxen fiber is put down
All fineness are 5um-15um, and fibre length is 20-82mm；Described graphite fibre line density is 1.0-3.0D, and fibre length is 51-
76mm。
5. a preparation method for fiber crops/graphite composite high-performance filtering material, its feature as described in any one of Claims 1 to 4
It is, is added by acupuncture between described fiber crops/graphite fibre composite bed and described upper nonwoven layer and described lower nonwoven layer
Gu and functional topical finishing obtains described filtering material.
6. the preparation method of fiber crops/graphite composite high-performance filtering material as claimed in claim 5, it is characterised in that described fiber crops/
Graphite fibre composite bed is obtained, institute through shredding, mixing, carding, lapping, pre-needling molding by flaxen fiber, graphite fibre
Stating in opening processes, first carry out pre-shredding twice at blade type pin cloth, flaxen fiber uses sawtooth pattern pin cloth to carry out pre-shredding together, then
Mixing with graphite fibre together with pre-shredding, add NON IONIC SOFTNER simultaneously in mixed process, described preparation fiber crops/graphite is combined
Fleece felt pre-needling molding uses 1 needing machine, uses profiled taper pin, and punch frequency and the degree of depth are respectively 250-500r/
min、6-8mm。
7. the preparation method of fiber crops/graphite composite high-performance filtering material as claimed in claim 5, it is characterised in that described pin
Thorn reinforcement process, uses 4 needing machines, rear two be dystopy to the machine of thorn, first punch frequency and the degree of depth are respectively 150-
250r/min, 12-14mm, second punch frequency and the degree of depth be respectively 200-350r/min, 7-9mm, the 3rd road punch frequency
And the degree of depth is respectively 250-400r/min, 4-6mm, the 4th road punch frequency and the degree of depth are respectively 250-400r/min, 2-4mm.
8. the preparation method of fiber crops/graphite composite high-performance filtering material as claimed in claim 5, it is characterised in that described merit
Press polish can be included successively, singes and impregnate by property Final finishing.
9. the preparation method of fiber crops/graphite composite high-performance filtering material as claimed in claim 8, it is characterised in that described leaching
Stain uses soft rubber roller, and pressure roller is 0.5MPa, and it is 20-30g/m that dipping emulsion filter felt increases grammes per square metre2, speed is 5m/min.
10. the preparation method of fiber crops/graphite composite high-performance filtering material as claimed in claim 9, it is characterised in that described leaching
The feature of environmental protection high-temp glue that stain uses, each component weight ratio is soft acrylic glue: silicone oil: silane coupler: water=(2-6):
(0.5-2.0): (10-15): (75-87).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645096.6A CN106268031B (en) | 2016-08-09 | 2016-08-09 | A kind of fiber crops/graphite composite high-performance filtering material and preparation method thereof |
Applications Claiming Priority (1)
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| CN114589998A (en) * | 2022-03-07 | 2022-06-07 | 苏州碳创新材料技术开发有限公司 | Flame-retardant breathable needle-punched non-woven material and preparation method thereof |
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| CN114589998A (en) * | 2022-03-07 | 2022-06-07 | 苏州碳创新材料技术开发有限公司 | Flame-retardant breathable needle-punched non-woven material and preparation method thereof |
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