CN114917775A - Modified microporous membrane material - Google Patents
Modified microporous membrane material Download PDFInfo
- Publication number
- CN114917775A CN114917775A CN202210638947.XA CN202210638947A CN114917775A CN 114917775 A CN114917775 A CN 114917775A CN 202210638947 A CN202210638947 A CN 202210638947A CN 114917775 A CN114917775 A CN 114917775A
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- CN
- China
- Prior art keywords
- microporous membrane
- membrane material
- ether
- modified microporous
- containing resin
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/52—Polyethers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/22—Thermal or heat-resistance properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/30—Chemical resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a modified microporous membrane material, which comprises a blending product formed by combining an ether-containing resin and PAI powder, wherein the ether-containing resin can be selected from polyphenylene sulfide or comprises a polymer material: (a) a phenyl moiety, (b) a ketone and/or sulfone moiety, and (c) an ether moiety. The invention has the beneficial effects that: the modified microporous membrane material has the advantages that the characteristics can be guaranteed when the working temperature is too high, the modified microporous membrane material has a flame retardant effect, and meanwhile, under the conditions of long-time direct sunlight, radioactive ray irradiation, external pollution or other conditions, the modified microporous membrane material cannot be discolored or embrittled on the surface, can be normally used, is stable in microporous structure, uniform in pore size and good in permeability, is convenient to replace and operate when being applied to a high-efficiency filter, and can be used for clearing away substances filtered out more easily, so that the efficient wave-passing effect is guaranteed.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a modified microporous membrane material.
Background
The microporous membrane material is a microporous membrane formed by raw materials through puffing and stretching, and is covered on various fabrics and base materials by a special process to form a novel filtering material.
However, in the existing microporous film material, the whole material often shrinks due to overhigh working temperature, the high temperature resistance is weak, the material does not have a flame retardant effect, and is easily affected by temperature to generate a spontaneous combustion phenomenon, so as to cause dangerous situations such as fire and the like, and meanwhile, under the conditions of long-time direct sunlight, radiation irradiation, external pollution or other situations, the surface of the microporous film material can be discolored, embrittled and the like, so as to affect the normal use effect: most microporous membrane materials have asymmetric microporous structures, different pore sizes and poor permeability, and when the microporous membrane materials are applied to a high-efficiency filter, the microporous membrane materials are difficult to replace, filtered substances are difficult to remove, and the wave passing effect of the high-efficiency filter is easily influenced.
Disclosure of Invention
The present invention aims to provide a modified microporous membrane material to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a modified microporous membrane material comprising the product of blending an ether containing resin selected from polyphenylene sulfide or comprising a polymeric material: (a) a phenyl moiety, (b) a ketone and/or sulfone moiety, and (c) an ether moiety.
Preferably, the ether-containing resin is a homopolymer having a repeating unit of the following general formula (1) and/or (2):
preferably, E' represents an oxygen atom or a direct link, B and D are 0 or 1, m, w, r, s, z, t and v each independently represent 0 or 1, and the Ar group is selected from one or more of aryl, arylene and derivatives thereof.
Preferably, the ether-containing resin has a molecular weight Mw of at least 2 ten thousand and more.
Preferably, the ether containing resin has a melt index of at least 5g/10 min.
Preferably, the purity of the carbon nano tube is more than 70%.
Advantageous effects
The modified microporous membrane material provided by the invention can ensure the characteristics of the material when the working temperature is too high, has a flame-retardant effect, can be normally used without the conditions of color change, embrittlement and the like on the surface of the modified microporous membrane material under the conditions of long-time direct sunlight, radioactive ray irradiation, external pollution or other conditions, has a stable microporous structure, uniform pore size and good permeability, is convenient to replace and operate when being applied to a high-efficiency filter, is easier to remove filtered substances, and ensures a high-efficiency wave-passing effect.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Examples
A modified microporous membrane material comprising the following components: (I) an ether-containing resin; (II) PAI powder; the ether containing resin may be selected from polyphenylene sulfide or polymeric materials comprising moieties as described below: a phenyl moiety, (b) a ketone and/or sulfone moiety, and (c) an ether moiety.
Further, the ether-containing resin is a homopolymer having a repeating unit of the following general formula (1) and/or (2):
wherein E' represents an oxygen atom or a direct link, B and D are 0 or 1, m, w, r, s, z, t, v independently represent 0 or 1; the Ar group is selected from one or more of aryl, arylene and derivatives thereof.
Further, the ether containing resin preferably comprises repeating units of the formula:
wherein t is 1 And w 1 Independently represent 0 or 1, v 1 Represents 0, 1 or 2. Preferred polymeric materials have the repeating unit wherein t 1 ＝1，v 1 0 and w 1 ＝0；t 1 ＝0，v 1 0 and w 1 ＝0；t 1 ＝0，w 1 ＝1，v 1 2; or t 1 ＝0，v 1 1 and w 1 0. More preferably t 1 ＝1，v 1 0 and w 1 0; or t 1 ＝0，v 1 0 and w 1 0. Most preferably t 1 ＝1，v 1 0 and w 1 ＝0。
In a preferred embodiment, the ether-containing resin is selected from the group consisting of polyetheretherketone, polyetherketone, polyetherketoneetherketoneketone, polyetheretherketoneketone, and polyetherketoneketone;
in a more preferred embodiment the polymeric material is selected from polyetherketone and polyetheretherketone, in a particularly preferred embodiment the polymeric material is polyetheretherketone.
Molecular weight M of Ether-containing resins W At least 2 ten thousand or more, preferably 20 ten thousand or more, more preferably 30 ten thousand or more, and preferably in the range of 55 to 90 ten thousand.
The melt index of the ether containing resin is at least 5g/10min, preferably 7-25g/10 min.
The ether containing resin can have a Tg of less than 260 ℃, e.g., less than 230 ℃ or less than 210 ℃, and in some cases, the Tg can be less than 200 ℃, 190 ℃, or 180 ℃.
In a preferred embodiment, the ether containing resin is used in an amount of 55 to 90 wt%, preferably at least 60 wt%, more preferably at least 70 wt%, more preferably at least 80 wt%.
Further, the ether containing resin has a tensile strength of at least 50MPa, preferably at least 60MPa, more preferably at least 75 MPa. The tensile strength is preferably 85 to 120MPa, more preferably 85 to 95 MPa.
The ether containing resin has a flexural strength of at least 120MPa, preferably 135 to 170MPa, more preferably 140 to 160 MPa.
The ether-containing resin has a flexural modulus of at least 1GPa, preferably at least 2GPa, more preferably at least 3GPa, preferably in the range of 3.5 to 4.5GPa, more preferably 3.6 to 4.0 GPa.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the content of the present invention within the scope of the protection of the present invention.
Claims (6)
1. A modified microporous membrane material comprising the product of blending an ether containing resin selected from polyphenylene sulfide or comprising a polymeric material: (a) a phenyl moiety, (b) a ketone and/or sulfone moiety, and (c) an ether moiety.
2. The modified microporous membrane material of claim 1, wherein: the ether-containing resin is a homopolymer having a repeating unit of the following general formula (1) and/or (2):
3. the modified microporous membrane material of claim 2, wherein: e' represents an oxygen atom or is directly connected, B and D are 0 or 1, m, w, r, s, z, t and v independently represent 0 or 1, and Ar group is selected from one or more of aryl, arylene and derivatives thereof.
4. The modified microporous membrane material of claim 1, wherein: the ether-containing resin has a molecular weight Mw of at least 2 ten thousand and more.
5. The modified microporous membrane material of claim 1, wherein: the ether containing resin has a melt index of at least 5g/10 min.
6. The modified microporous membrane material of claim 1, wherein: the purity of the carbon nano tube is more than 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210638947.XA CN114917775A (en) | 2022-06-07 | 2022-06-07 | Modified microporous membrane material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210638947.XA CN114917775A (en) | 2022-06-07 | 2022-06-07 | Modified microporous membrane material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114917775A true CN114917775A (en) | 2022-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210638947.XA Pending CN114917775A (en) | 2022-06-07 | 2022-06-07 | Modified microporous membrane material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114917775A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004002658A (en) * | 2001-12-28 | 2004-01-08 | Policell Technologies Inc | Thermally activated porous membrane and its application to storage battery |
| JP2005338204A (en) * | 2004-05-25 | 2005-12-08 | Jsr Corp | Electrochromic display element |
| JP2012167181A (en) * | 2011-02-14 | 2012-09-06 | Daicel Corp | Porous film containing inorganic particle, and method for producing the same |
| KR20120126912A (en) * | 2011-05-13 | 2012-11-21 | 이수복 | Microporous Thin Film Type Nonwoven Fabric |
| JP2016013544A (en) * | 2014-06-13 | 2016-01-28 | ダイキン工業株式会社 | Porous membrane |
| KR20170029399A (en) * | 2016-09-19 | 2017-03-15 | 삼성에스디아이 주식회사 | Method for manufacturing porous film, the porous film, and electro-chemical battery or separator comprising the porous film |
-
2022
- 2022-06-07 CN CN202210638947.XA patent/CN114917775A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004002658A (en) * | 2001-12-28 | 2004-01-08 | Policell Technologies Inc | Thermally activated porous membrane and its application to storage battery |
| JP2005338204A (en) * | 2004-05-25 | 2005-12-08 | Jsr Corp | Electrochromic display element |
| JP2012167181A (en) * | 2011-02-14 | 2012-09-06 | Daicel Corp | Porous film containing inorganic particle, and method for producing the same |
| KR20120126912A (en) * | 2011-05-13 | 2012-11-21 | 이수복 | Microporous Thin Film Type Nonwoven Fabric |
| JP2016013544A (en) * | 2014-06-13 | 2016-01-28 | ダイキン工業株式会社 | Porous membrane |
| KR20170029399A (en) * | 2016-09-19 | 2017-03-15 | 삼성에스디아이 주식회사 | Method for manufacturing porous film, the porous film, and electro-chemical battery or separator comprising the porous film |
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