CN107160720A - A kind of high efficiency composition protects the preparation method of filter material - Google Patents
A kind of high efficiency composition protects the preparation method of filter material Download PDFInfo
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- CN107160720A CN107160720A CN201710366584.8A CN201710366584A CN107160720A CN 107160720 A CN107160720 A CN 107160720A CN 201710366584 A CN201710366584 A CN 201710366584A CN 107160720 A CN107160720 A CN 107160720A
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- melt
- blown
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- efficiency composition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Filtering Materials (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses the preparation method that a kind of high efficiency composition protects filter material, melt-blown composite base material, micro/nano fibrous membrane material and melt-blown material are stacked together successively, hot pressing obtains composite protective filter material.Appropriate polymeric powder is added in dicyandiamide solution, stirs to powder be completely dissolved at room temperature, that is, obtain electrostatic spinning solution；Using electrostatic spinning apparatus, the macromolecule spinning solution of above-mentioned preparation on even application on composite base material is being meltblown, i.e., one layer of micro/nano fibrous membrane material layer is formd on melt-blown composite base material；The covering melt-blown drop cloth material on nano fibrous membrane, is made high efficiency composition protection filter material after hot-pressing processing.The present invention is effectively improved the filter effect of simple melt-blown composite filter material, solve the problem of filtration resistance filters the sharp increase with time increase, the cleaning of screen pack is more facilitated simultaneously, be a kind of filter efficiency height, durable, the preparation method of high efficiency composition protection filter material easy to clean.
Description
Technical field
The invention belongs to technical field of air purification, a kind of high efficiency composition protection filter material is particularly related to
Preparation method.
Background technology
Common melt-blown combined filtration net materials or HEPA nets have that pollutant carrying capacity is strong, corrosion-resistant, make in the prior art
With long lifespan, low cost and other advantages, but HEPA nets are with the growth of use time, its filtration resistance can sharp increase, simultaneously
Filter effect is also decreased obviously.And micro/nano fibrous membrane material specific surface area is big, porosity is high, and filter efficiency is high, but its intensity is not high.Base
In disadvantages mentioned above of the prior art, if it is possible to develop it is a kind of will melt-blown composite filter material and nano fibrous membrane it is compound and
Into high efficiency composition filter material, an important breakthrough in screen pack field will be protected as air cleaning.
The content of the invention
The present invention has that there is provided a kind of filter efficiency height, durable, easy to clean to overcome the shortcomings of prior art
High efficiency composition protect filter material preparation method.
The present invention is achieved by the following technical solutions：A kind of high efficiency composition protects the preparation method of filter material,
Melt-blown composite base material, micro/nano fibrous membrane material and melt-blown material are stacked together successively, hot pressing prepares high efficiency composition and prevented
Filter material is protected, following steps are specifically included：
A, prepare electrostatic spinning solution：
Appropriate polymeric powder is added in dicyandiamide solution, stirs to powder be completely dissolved at room temperature, that is, obtain electrostatic spinning
Solution, wherein room temperature be 15~28 DEG C, spinning solution use mass concentration for 8~15% PAN solution；
B, electrostatic spinning：
Using electrostatic spinning apparatus, the macromolecule spinning solution of above-mentioned preparation on even application on composite base material is being meltblown, that is, is being existed
One layer of micro/nano fibrous membrane material layer is formd on melt-blown composite base material；Electrostatic spinning apparatus, which is selected, pin or needleless liquid level Static Spinning
Silk machine, when electrostatic spinning apparatus works, the voltage range of high pressure generator is 0~100kV, and shower nozzle connects to melt-blown composite base material
It is 8.5~25cm to receive distance, and the flow of spinning solution is 0.8~50ml/h；
C, hot pressing：
The covering melt-blown drop cloth material on micro/nano fibrous membrane material layer, is made high efficiency composition protection filtering web material after hot pressing
Material；Hot pressing pressure is 0.1~10MPa, and hot pressing temperature is 50~120 DEG C.
The melt-blown that composite base material is any identical or different two kinds of materials in PET, PA, PU, PC and PS material is meltblown to be combined,
The filter effect of composite base material is 75~95%（TSI8130 is under the conditions of NaCl aerosols 32L/min）, resistance is in 10~30Pa
In the range of.
Melt-blown material is any one in PET, PA, PU, PC and PS material, and the filter effect of melt-blown material is 5%（TSI8130
Under the conditions of NaCl aerosols 32L/min）, resistance≤10Pa.
Nano fibrous membrane is by one in polyacrylonitrile, Kynoar, nylon 6, nylon66 fiber, polystyrene and polyurethane
Kind or the micro/nano fibrous membrane material that is prepared by electrostatic spinning of different materials, the fibre diameter of nano fibrous membrane for 100~
300nm, micro/nano fibrous membrane material is the one or more in any water insoluble polymer that can be used in electrostatic spinning.
As the preferred embodiment of the present invention, the electrostatic spinning apparatus in step b selects needleless liquid level electrostatic spinning machine,
The voltage range of high pressure generator is 60~80kV, and the distance of shower nozzle to melt-blown composite base material is 9~15cm, and the flow of solution is
20~80ml/h.Hot pressing pressure in step c is 0.5MPa, and hot pressing temperature is 80 DEG C.
High efficiency composition protection filter material of the present invention is detected using TSI8130 strainabilities tester, molten in NaCl gas
Flow adhesive is 32L/Min, and filter efficiency is 99.5%~99.998%, and filtration resistance is 40~160Pa.
The beneficial effects of the invention are as follows：Melt-blown composite filter material is combined by the present invention with nano fibrous membrane, makes one kind
High efficiency composition filter material, screen pack is protected the present invention relates to the high efficiency composition of the field such as civilian, commercial and medical filtering
The preparation method of material, using the method for the present invention, obtained filter material have filter efficiency efficiently, it is durable, clear
Wash the advantages of facilitating.It is of the invention compared with existing filter material, the present invention in high efficiency composition protection filter material it is existing
Improve the filter effect of simple melt-blown composite filter material with imitating, asking for filtration resistance filtering sharp increase with time increase is solved again
Topic, while make the cleaning of screen pack more facilitate, the present invention is a kind of filter efficiency height, durable, easy to clean efficient
The preparation method of composite protective filter material.
Embodiment
To become apparent the present invention, the present invention is described in further detail in conjunction with specific embodiment.
Embodiment 1：A kind of high efficiency composition protects the preparation method of filter material, and the preparation method will be meltblown composite base
Material, micro/nano fibrous membrane material and melt-blown material are stacked together successively, and high efficiency composition protection filter material is made in hot pressing.
Wherein melt-blown composite base material is PET and PP composite base materials, and the filter effect of composite base material is 85%（TSI 8130 is in NaCl
Under the conditions of aerosol 32L/min）, resistance is 18Pa or so.Micro/nano fibrous membrane material is PAN nanofibers, distribution of fiber diameters
In 100~300nm, average fibre diameter is 248nm.Melt-blown material is PP melt-blown nonwoven cloth materials, and the filter effect of melt-blown material is
5%（TSI 8130 is under the conditions of NaCl aerosols 32L/min）, resistance is 5Pa or so.
The preparation method of high efficiency composition protection filter material of the present invention comprises the following steps：
Step 1：Prepare the spinning solution of DMF；
Step 2：On above-mentioned melt-blown composite base material, the good electrostatic spinning solution of above-mentioned configuration is sprayed using electrostatic spinning apparatus,
PAN nanofiber film layer is formed on melt-blown composite base material；Electrostatic spinning apparatus is needleless hair style electrostatic spinning machine.
When electrostatic spinning apparatus works, the voltage of high pressure generator is 55~70kV；Shower nozzle to melt-blown composite base material away from
From for 10~20cm；The flow of spinning solution is 45~70mL/h；Environment temperature is 25 DEG C, and envionmental humidity is 45%.
Step 3：PP melt-blown nonwoven cloth materials are covered in step 2, hot pressing obtains high efficiency composition protection filter material, heat
Pressure pressure is 0.5MPa, and hot pressing temperature is 80 DEG C.
High efficiency composition obtained above protection filter material is subjected to the test of the strainabilities of TSI 8130：It is molten in NaCl gas
Glue flow velocity is under the conditions of 32L/min, the filter efficiency of combined filtration net materials is 99.84%, and filtration resistance is 90.3Pa.
Embodiment 2：A kind of high efficiency composition protects the preparation method of filter material, and the preparation method will be meltblown composite base
Material, micro/nano fibrous membrane material and melt-blown material are stacked together successively, and high efficiency composition protection filter material is made in hot pressing.
It is PET and PP composite base materials to be meltblown composite base material, and the filter effect of composite base material is 95%（TSI 8130 is molten in NaCl gas
Under the conditions of glue 32L/min）, resistance is 23Pa or so.Micro/nano fibrous membrane material is PVDF nanofibers, and distribution of fiber diameters exists
150~400nm, average fibre diameter is 288nm.Melt-blown material is PP melt-blown nonwoven cloth materials, and the filter effect of melt-blown material is 5%
（TSI8130 is under the conditions of NaCl aerosols 32L/min）, resistance is 5Pa or so.
The preparation method of high efficiency composition protection filter material of the present invention comprises the following steps：
Step 1：Prepare the spinning solution of PVDF DMF；
Step 2：On above-mentioned melt-blown composite base material, the good electrostatic spinning solution of above-mentioned configuration is sprayed using electrostatic spinning apparatus,
PVDF nanofiber film layer is formed on melt-blown composite base material, electrostatic spinning apparatus is needle-based electrostatic spinning machine.
When electrostatic spinning apparatus works, the voltage of high pressure generator is 18~30kV；Shower nozzle to melt-blown composite base material away from
It is 25~30mL/h from the flow for 10~20cm, spinning solution, environment temperature is 25 DEG C, and envionmental humidity is 45%.
Step 3：PP melt-blown nonwoven cloth materials are covered in step 2, hot pressing obtains high efficiency composition protection filter material, heat
Pressure pressure is 0.3MPa, and hot pressing temperature is 80 DEG C.
High efficiency composition obtained above protection filter material is subjected to the test of the strainabilities of TSI 8130：It is molten in NaCl gas
Glue flow velocity is under the conditions of 32L/min, the filter efficiency of combined filtration net materials is 99.96%, and filtration resistance is 110.8Pa.
Finally it should be noted that these are only embodiments of the invention, the present invention is not intended to limit, above content is only used to
Illustrate the side of technical scheme, rather than limiting the scope of the invention, all use equivalent substitutions or equivalent transformation
The technical scheme that formula is obtained, all falls within protection scope of the present invention, skill of the one of ordinary skill in the art to the present invention
Simple modification or equivalent substitution that art scheme is carried out, all without departing from the spirit and scope of technical solution of the present invention.
Claims (6)
1. a kind of high efficiency composition protects the preparation method of filter material, it is characterised in that：The high efficiency composition protects screen pack
The preparation method of material is that melt-blown composite base material, micro/nano fibrous membrane material and melt-blown material are stacked together successively, hot pressing
It is standby to obtain high efficiency composition protection filter material, specifically include following steps：
A, prepare electrostatic spinning solution：
Appropriate polymeric powder is added in dicyandiamide solution, stirs to powder be completely dissolved at room temperature, that is, obtain electrostatic spinning
Solution, wherein room temperature be 15~28 DEG C, spinning solution use mass concentration for 8~15% PAN solution；
B, electrostatic spinning：
Using electrostatic spinning apparatus, the macromolecule spinning solution of above-mentioned preparation on even application on composite base material is being meltblown, that is, is being existed
One layer of micro/nano fibrous membrane material layer is formd on melt-blown composite base material, electrostatic spinning apparatus, which is selected, pin or needleless liquid level Static Spinning
Silk machine；
C, hot pressing：
The covering melt-blown drop cloth material on micro/nano fibrous membrane material layer, is made high efficiency composition protection screen pack after hot-pressing processing
Material, hot pressing pressure is 0.1~10MPa, and hot pressing temperature is 50~120 DEG C.
2. a kind of high efficiency composition according to claim 1 protects the preparation method of filter material, it is characterised in that：It is described
It is meltblown the melt-blown that composite base material is any identical or different two kinds of materials in PET, PA, PU, PC and PS to be combined, the melt-blown material
For any one in PET, PA, PU, PC and PS material.
3. a kind of high efficiency composition according to claim 1 protects the preparation method of filter material, it is characterised in that：It is described
Nano fibrous membrane is by the one or more in polyacrylonitrile, Kynoar, nylon 6, nylon66 fiber, polystyrene and polyurethane
The micro/nano fibrous membrane material that material is prepared by electrostatic spinning, the fibre diameter of nano fibrous membrane is 100~300nm.
4. a kind of high efficiency composition according to claim 1 protects the preparation method of filter material, it is characterised in that：It is described
Electrostatic spinning apparatus in step b selects needleless liquid level electrostatic spinning machine, when electrostatic spinning apparatus works, the electricity of high pressure generator
Pressure scope is 0~100kV, and the reception distance of shower nozzle to melt-blown composite base material is 8.5~25cm, and the flow of spinning solution is 0.8
~50ml/h.
5. a kind of high efficiency composition according to claim 4 protects the preparation method of filter material, it is characterised in that：High pressure
The voltage range of generator is 60~80kV, and the distance of shower nozzle to melt-blown composite base material is 9~15cm, the flow of solution is 20~
80ml/h。
6. a kind of high efficiency composition according to claim 1 protects the preparation method of filter material, it is characterised in that：It is described
Hot pressing pressure in step c is 0.5MPa, and hot pressing temperature is 80 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710366584.8A CN107160720A (en) | 2017-05-23 | 2017-05-23 | A kind of high efficiency composition protects the preparation method of filter material |
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| CN201710366584.8A CN107160720A (en) | 2017-05-23 | 2017-05-23 | A kind of high efficiency composition protects the preparation method of filter material |
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| CN107160720A true CN107160720A (en) | 2017-09-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049026A (en) * | 2018-01-08 | 2018-05-18 | 青岛大学 | A kind of preparation method of thermoplastic polyurethane nano fibrous membrane |
| CN110787532A (en) * | 2019-11-08 | 2020-02-14 | 西安工程大学 | Nano-fiber haze-preventing gauze material and preparation method thereof |
| CN112877917A (en) * | 2020-12-31 | 2021-06-01 | 上海工程技术大学 | Method for manufacturing double-layer efficient air filtering material |
| CN113413684A (en) * | 2021-08-25 | 2021-09-21 | 江苏新视界先进功能纤维创新中心有限公司 | Polylactic acid nano double-layer fiber membrane filter element and preparation method thereof |
| CN113509916A (en) * | 2020-04-09 | 2021-10-19 | 宁波方太厨具有限公司 | Preparation method of composite nanofiber filtering membrane for adsorbing formaldehyde |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049026A (en) * | 2018-01-08 | 2018-05-18 | 青岛大学 | A kind of preparation method of thermoplastic polyurethane nano fibrous membrane |
| CN110787532A (en) * | 2019-11-08 | 2020-02-14 | 西安工程大学 | Nano-fiber haze-preventing gauze material and preparation method thereof |
| CN113509916A (en) * | 2020-04-09 | 2021-10-19 | 宁波方太厨具有限公司 | Preparation method of composite nanofiber filtering membrane for adsorbing formaldehyde |
| CN112877917A (en) * | 2020-12-31 | 2021-06-01 | 上海工程技术大学 | Method for manufacturing double-layer efficient air filtering material |
| CN113413684A (en) * | 2021-08-25 | 2021-09-21 | 江苏新视界先进功能纤维创新中心有限公司 | Polylactic acid nano double-layer fiber membrane filter element and preparation method thereof |
| CN113413684B (en) * | 2021-08-25 | 2021-11-19 | 江苏新视界先进功能纤维创新中心有限公司 | Polylactic acid nano double-layer fiber membrane filter element and preparation method thereof |
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Application publication date: 20170915 |
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