CN106474821A - Compound filtering material containing composite fibre ply of paper and its manufacture method - Google Patents
Compound filtering material containing composite fibre ply of paper and its manufacture method Download PDFInfo
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- CN106474821A CN106474821A CN201510527286.3A CN201510527286A CN106474821A CN 106474821 A CN106474821 A CN 106474821A CN 201510527286 A CN201510527286 A CN 201510527286A CN 106474821 A CN106474821 A CN 106474821A
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- composite fibre
- filtering material
- compound filtering
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Abstract
The present invention discloses a kind of Compound filtering material containing composite fibre ply of paper and its manufacture method.According to a kind of Compound filtering material of the present invention, including：Substrate layer；And it is arranged on one or more filter membranous layers on described substrate layer, wherein said substrate layer is composite fibre ply of paper, and described composite fibre ply of paper includes wood pulp cellulose and synthetic fibers.Described synthetic fibers include polyster fibre.
Description
Technical field
The application be related to field of air filtration and in particular to one kind be applied to airfiltering Compound filtering material and its
Manufacture method.
Background technology
Air filter (Air Filter) is a kind of air (gas) defecator, for dust-proof.For example,
Air filter can be used for electronics, machinery, communication equipment dust-proof, for the dust-proof cleaning of microelectronic industry
Workshop and clean room, for the clean operating room of medical domain, the laboratory for scientific research field and cleaning
Room etc..
An airfiltering free-revving engine be remove particulate matter in air (gas) (for example, dust,
Sandy soil, pollen, antibacterial).At present, the predominantly organic tool of particulate in air removal technology filter, absorption,
Electrostatic precipitation, anion and plasma method and the filtration of electrostatic electret etc..In the scheme of mechanical filter, filter
Film layer is based on granules in the air for the number of mechanisms such as spreading effect, interception effect, the inertia effect, sieve effects
Thing realizes capture.For mechanical filter scheme, the filter material (filter element) of filter is to obtain good filtration to imitate
One of key factor of fruit.
Prior art includes kinds of schemes to manufacture filter material.Typical filter material includes the fibrous paper as substrate layer
Layer and other layers (as filter membranous layer).The specific example of fiber paper may include terylene (PET) fibrous layer,
Polypropylene (PP) fibrous layer, wood pulp fiber layer etc..
Content of the invention
The present invention is intended to provide a kind of Compound filtering material, it has improved fiber paper.Specifically, improve
Fiber paper compare pure terylene ply of paper there is more preferable heat stability and breathability, compare pure wood pulp fiber layer
There is enhanced paper strength, embody more preferable tearing strength, tensile property and percentage elongation.Simultaneously this
Improved fiber paper has eco-friendly feature.
According to an aspect of the present invention, a kind of Compound filtering material is proposed, including：Substrate layer；And be arranged on
One or more filter membranous layers on described substrate layer, wherein said substrate layer is composite fibre ply of paper, and described mixing is fine
Dimension ply of paper includes wood pulp cellulose and synthetic fibers.
According to an aspect of the present invention, in aforesaid Compound filtering material, described synthetic fibers include polyster fibre and
Polypropylene fibre.
According to an aspect of the present invention, in aforesaid all kinds of Compound filtering material, wood pulp in described composite fibre ply of paper
The content of fiber is the 5%-95% of the quality of composite fibre ply of paper.
According to an aspect of the present invention, in aforesaid all kinds of Compound filtering material, described wood pulp cellulose include following in
At least one：The softwood pulp fiber such as Pinus massoniana Lamb, larch, Pinus koraiensis, PiceameyeriRehd. Et Wils. or birch, poplar, basswood,
The hardwood pulp fiber such as Eucalyptus, maple.
According to an aspect of the present invention, in aforesaid all kinds of Compound filtering material, the quantitation of described composite fibre ply of paper
For 100g/m2～1050g/m2, thickness is 0.1mm-2.5mm.
According to an aspect of the present invention, in aforesaid all kinds of Compound filtering material, one or more of filter membranous layer bags
Include laminating polytetrafluoroethylmicroporous microporous membrane on described composite fibre paper, the hole of described polytetrafluoroethylmicroporous microporous membrane
Gap rate is 65%-95%, and average pore size is 0.005um-3.5um, and thickness is 0.5um-8.5um.
According to an aspect of the present invention, a kind of method manufacturing Compound filtering material is proposed, including：Preparation mixing is fine
Dimension ply of paper, described composite fibre ply of paper includes wood pulp cellulose and synthetic fibers；And by described composite fibre ply of paper and
One or more filter membranous layers are combined as Compound filtering material.
According to an aspect of the present invention, in aforesaid method, described synthetic fibers are polyster fibre or polypropylene
Fiber.
According to an aspect of the present invention, in aforesaid all kinds of method, one or more of filter membranous layers include gathering
Tetrafluoroethene microporous membrane, the porosity of described polytetrafluoroethylmicroporous microporous membrane is 65%-95%, and average pore size is
0.005um-3.5um, thickness is 0.5um-8.5um；Described wood pulp cellulose include following at least one：Horse hair
The softwood pulp fiber such as pine, larch, Pinus koraiensis, PiceameyeriRehd. Et Wils. or the broad-leaved such as birch, poplar, basswood, Eucalyptus, maple
Wood pulp cellulose.
According to an aspect of the present invention, in aforesaid all kinds of method, by described composite fibre ply of paper and one or
The step that multiple filter membranous layers are combined as Compound filtering material includes：Heat pressing process or glue are passed through on described composite fibre ply of paper
The laminating polytetrafluoroethylmicroporous microporous membrane of adhering process, the hot pressing temperature of wherein said heat pressing process is 85 DEG C -225 DEG C,
Hot pressing pressure is 0.05MPa-10.0MPa, and laminating speed is 0.005m/m-15.0m/m, described adhesion process
For dispensing or gluing.
Brief description
It is that they are included and constitute the one of the application in order to provide further understanding of the invention including accompanying drawing
Part, accompanying drawing shows embodiments of the invention, and plays the explanation principle of the invention together with this specification
Effect.In accompanying drawing：
Fig. 1 is the schematic diagram of the Compound filtering material according to embodiments of the invention.
Fig. 2 is the schematic diagram of the method for the manufacture Compound filtering material according to embodiments of the invention.
Specific embodiment
In the following description, with reference to each embodiment, present invention is described.However, the technology of this area
Personnel will be recognized that and can replace and/or attached in the case of neither one or multiple specific detail or with other
Each embodiment implemented together by adding method, material or assembly.In other situations, not shown or do not describe in detail
Known structure, material or operation so as not to make various embodiments of the present invention aspects obscure.Similarly, it is
The purpose explained, elaborates specific quantity, material and configuration, to provide to embodiments of the invention
Comprehensive understanding.However, the present invention can be implemented in the case of not having specific detail.Further, it should be understood that accompanying drawing
Shown in each embodiment be illustrative to represent and be not drawn necessarily to scale.
The exemplary construction of Compound filtering material
With reference to Fig. 1, it illustrates the schematic diagram of Compound filtering material 100 according to an embodiment of the invention.As schemed
Show, Compound filtering material 100 includes substrate layer, for example, fiber paper 101, it primarily serves the work of supporting layer
With.Realize in scene some, fiber paper 101 is also referred to as " filter paper ".Further, as Fig. 1 institute
Show, Compound filtering material 100 includes filter membranous layer 102, filter membranous layer 102 includes, for example, polytetrafluoroethylene PTFE
Microporous membrane.Exemplary PTFE microporous membrane can have three-dimensional netted loose structure.For example, PTFE
Microporous membrane can stretch thin for a kind of expanded PTFE (expended PTFE) solid with loose structure
Film.Expanded PTFE is made up of the special processing method such as polyflon drawn, high resilience
And pliability, there is the tridimensional network that microfibre connects and formed.As an example, PTFE micropore
The porosity of film can be 65%-95%.As an example, the average pore size of PTFE microporous membrane can be
0.005um-3.5um.As an example, PTFE micropore film thickness can be 0.5um-8.5um.However, needing to refer to
Go out is that the present invention is not required for filter membranous layer 102 and is necessary for PTFE microporous membrane, and it can also be that other play
The filter membranous layer of micro particle filtering effect.
According to embodiments of the invention, the fiber paper 101 in Compound filtering material 100 can be composite fibre ply of paper.
Specifically, fiber paper 101 is not conventional synthetic fiber layer or wood pulp fiber layer, but fine by wood pulp
The composite fibre ply of paper that peacekeeping polyster fibre is mixed to prepare.Polyster fibre refers to by organic dibasic acid and dihydroxylic alcohols
The synthetic fibers through spinning gained for the terylene macromolecular material of polycondensation.As an example, composite fibre ply of paper
The content of the wood pulp cellulose in 101 is the 5%-95% of the quality of composite fibre ply of paper 101.Fine to wood pulp
Dimension source be not restricted, as an example, wood pulp cellulose may include following at least one：Pinus massoniana Lamb,
The softwood pulp fiber such as larch, Pinus koraiensis, PiceameyeriRehd. Et Wils. or the broad-leaved such as birch, poplar, basswood, Eucalyptus, maple
Wood pulp cellulose.As an example, the polyster fibre in composite fibre ply of paper 101 is can be terylene long fibre,
It can also be polyester staple fiber.As an example, the cardboard of composite fibre ply of paper 101 quantification of for 100g/m2～
1050g/m2, thickness is 0.1mm-2.5mm.
The present invention is not restricted to the cardboard form of composite fibre ply of paper 101.As an example, composite fibre paper
The cardboard of layer 101 can be plate or corrugated type.
Composite fibre ply of paper 101 and filter membranous layer 102 are combined together by appropriate ways.For example, in mixing
Fiber paper 101 layer surface passes through hot pressing or the laminating one layer of PTFE microporous membrane of gluing technology mode.Adopting
In the case of taking adhesion process, can be in the way of using dispensing or gluing.
Compound filtering material 100 according to embodiments of the present invention is by taking by polyster fibre and wood pulp cellulose mixing
The composite fibre ply of paper 101 becoming, improves the performance of Compound filtering material 100.Taking polyster fibre and wood pulp
In the embodiment of fiber mixing, polyster fibre has stable chemical performance, fibre fineness is big, intensity is high, hot
Contractility is good, and the features such as antistatic behaviour is good, wood pulp cellulose then has the advantage of good permeability, composite fibre paper
The advantage that layer 101 make use of both polyster fibre and wood pulp cellulose to a great extent, compensate for respective not
Foot.
Table 1 show Compound filtering material according to the present invention with conventional be the filter material of base material using pure terylene ply of paper
Contrast.As can be seen that in the case of identical grammes per square metre, the two realizes identical filter efficiency, but the present invention
Compound filtering material resistance lower (breathability is more preferable).
| Project | Composite wood pulp fibers filter paper | Pure terylene composite filter paper |
| Grammes per square metre, g/ | 130 | 130 |
| Filter efficiency, (%, PM0.3) | 99.995 | 99.995 |
| Resistance, (32L/min) | 89.3Pa | 156.7Pa |
Table 1
Above embodiment provides polyster fibre and the implementation of wood pulp cellulose mixing.However, the present invention is not
It is limited to this.It is also possible to take other synthetic fibers that this area uses, example in substituting embodiment
As PP (polypropylene) fiber.
The example processing technology of Compound filtering material
The method that Fig. 2 illustrates to make Compound filtering material according to an embodiment of the invention.
As shown in Fig. 2 in step 201, providing filter membranous layer." offer " of step 201 should make broad sense
Explain, it may include the available filter membranous layer of offer business, or prepares filter membranous layer as needed.
In step 202, provide composite fibre ply of paper." offer " of step 202 should be interpreted broadly,
It may include the available composite fibre ply of paper of offer business, or preparation composite fibre ply of paper.Fine in preparation mixing
During dimension ply of paper, polyster fibre and wood pulp cellulose are carried out proportioning according to required ratio, thus being obtained mixed
Condensating fiber ply of paper.
In step 203, composite fibre ply of paper and filter membranous layer are combined as Compound filtering material.Can be glued by suitable
Composite fibre ply of paper and filter membranous layer are combined by knot mechanism.For example, existed by hot pressing or gluing technology mode
The laminating one layer of PTFE microporous membrane of composite fibre ply of paper 101 layer surface.When taking heat pressing process, hot pressing
Temperature can be 85 DEG C -225 DEG C, and hot pressing pressure can be 0.05MPa-10.0MPa, and laminating speed is
0.005m/m-15.0m/m.In the case of taking adhesion process, can be in the way of using dispensing or gluing.Need
It is again noted that these are only example it is also possible to select other bonding modes known in the art.
In above-mentioned technique, although describing step 201 prior to step 202, those skilled in the art should manage
Solution, step 201 and step 202 can take other process timing sequence, and for example, step 202 is prior to step
201, or step 201 carried out with step 202 simultaneously.The sequential that these those skilled in the art can envision becomes
Change and each fall within the scope of the present invention.
Experimental example
Experimental example 1
By porosity be 65%, average pore size 0.35um, thickness be 0.5um microporous teflon membran with
Grammes per square metre be 550g, Pinus koraiensis wood pulp cellulose content be 55% composite fibre ply of paper, in hot pressing temperature 100
DEG C, carry out hot pressing cladding under conditions of pressure 0.25MPa, laminating speed 0.5m/m.Prepared composite fibre
Laminating microporous teflon membran Compound filtering material, its PM0.3 filter efficiency 99.98%, radial direction strength 320.2N,
Broadwise strength 192.8N.
Experimental example 2
By porosity be 75%, average pore size 1.35um, thickness be 5.5um microporous teflon membran with
Grammes per square metre be 750g, maple wood pulp cellulose content be 75% composite fibre ply of paper, in hot pressing temperature 120
DEG C, carry out hot pressing cladding under conditions of pressure 0.75MPa, laminating speed 5m/m.Prepared composite fibre
Laminating microporous teflon membran Compound filtering material, its PM0.3 filter efficiency 99.95%, radial direction strength 310.2N,
Broadwise strength 198.7N.
Experimental example 3
By porosity be 85%, average pore size 2.35um, thickness be 7.5um microporous teflon membran with
Grammes per square metre be 1000g, basswood wood pulp cellulose content be 85% composite fibre ply of paper, in hot pressing temperature 160
DEG C, carry out hot pressing cladding under conditions of pressure 1.25MPa, laminating speed 10m/m.Prepared composite fibre
Laminating microporous teflon membran Compound filtering material, its PM0.3 filter efficiency 99.83%, radial direction strength 330.2N,
Broadwise strength 202.8N.
In conjunction with above embodiment and experimental example it can be seen that hinge structure of the present invention realizes following improvement：
A. the present invention has more preferable heat stability and breathability with comparing using the paper filter material of polyster fibre；
B. the form of the polyster fibre used by the present invention and wood pulp cellulose interaction mixing expands paper filter material and exists
The range of field of air filtration.The composite fibre paper filter material of the present invention is obtaining same filter efficiency
On the basis of can improve tearing strength, tensile property and the elongation characteristics of filter material.
C. the composite fibre paper filter material of the present invention is in terms of tearing strength, tensile property and percentage elongation and traditional
The speciality paper of pure wood pulp cellulose quite or is better than traditional pure wood pulp cellulose speciality paper.
Industrial applicability
The Compound filtering material of the present invention and its processing technology are applied to the various fields of demand air purity, including
But it is not limited to：Dust-proof, the air filtration of the plant equipment such as gas turbine of electronic communication equipment, dust-proof cleaning
Workshop and clean room, clean operating room, R＆D units and toilet etc..
Claims (10)
1. a kind of Compound filtering material, including：
Substrate layer；And
It is arranged on the one or more filter membranous layers on described substrate layer,
Wherein said substrate layer is composite fibre ply of paper, and described composite fibre ply of paper includes wood pulp cellulose and synthesis is fine
Dimension.
2. Compound filtering material as claimed in claim 1 is it is characterised in that described synthetic fibers include polyster fibre
And polypropylene fibre.
3. Compound filtering material as claimed in claim 1 or 2 it is characterised in that in described composite fibre ply of paper wood
The content of pulp fibres is the 5%-95% of the quality of composite fibre ply of paper.
4. Compound filtering material as claimed in claim 1 or 2 it is characterised in that described wood pulp cellulose include following
In at least one：The softwood pulp fiber such as Pinus massoniana Lamb, larch, Pinus koraiensis, PiceameyeriRehd. Et Wils. or birch, poplar, basswood,
The hardwood pulp fiber such as Eucalyptus, maple.
5. Compound filtering material as claimed in claim 1 or 2 is it is characterised in that the determining of described composite fibre ply of paper
Measure as 100g/m2～1050g/m2, thickness is 0.1mm-2.5mm.
6. Compound filtering material as claimed in claim 1 or 2 is it is characterised in that one or more of filter membranous layer
Including laminating polytetrafluoroethylmicroporous microporous membrane on described composite fibre paper, described polytetrafluoroethylmicroporous microporous membrane
Porosity is 65%-95%, and average pore size is 0.005um-3.5um, and thickness is 0.5um-8.5um.
7. a kind of method manufacturing Compound filtering material, including：
Preparation composite fibre ply of paper, described composite fibre ply of paper includes wood pulp cellulose and synthetic fibers；And
Described composite fibre ply of paper and one or more filter membranous layer are combined as Compound filtering material.
8. method as claimed in claim 7 is it is characterised in that described synthetic fibers are polyster fibre or poly- third
Alkene fiber.
9. method as claimed in claim 7 or 8 it is characterised in that：
One or more of filter membranous layers include polytetrafluoroethylmicroporous microporous membrane, described polytetrafluoroethylmicroporous microporous membrane
Porosity be 65%-95%, average pore size be 0.005um-3.5um, thickness be 0.5um-8.5um；
Described wood pulp cellulose include following at least one：The needles such as Pinus massoniana Lamb, larch, Pinus koraiensis, PiceameyeriRehd. Et Wils.
The hardwood pulp fiber such as wood pulp cellulose or birch, poplar, basswood, Eucalyptus, maple.
10. method as claimed in claim 7 or 8 is it is characterised in that by described composite fibre ply of paper and one
Or the step that multiple filter membranous layer is combined as Compound filtering material includes：
Pass through heat pressing process or the laminating polytetrafluoroethylmicroporous microporous membrane of adhesion process on described composite fibre ply of paper,
The hot pressing temperature of wherein said heat pressing process is 85 DEG C -225 DEG C, and hot pressing pressure is 0.05MPa-10.0MPa,
Laminating speed is 0.005m/m-15.0m/m, and described adhesion process is dispensing or gluing.
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| CN201510527286.3A CN106474821A (en) | 2015-08-25 | 2015-08-25 | Compound filtering material containing composite fibre ply of paper and its manufacture method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115075041A (en) * | 2022-05-18 | 2022-09-20 | 华南理工大学 | High-air-permeability paper bag and preparation method and application thereof |
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