CN103721581A - Hydrophilic PVDF (polyvinylidene fluoride) ultrafiltration membrane - Google Patents
Hydrophilic PVDF (polyvinylidene fluoride) ultrafiltration membrane Download PDFInfo
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- CN103721581A CN103721581A CN201310688681.0A CN201310688681A CN103721581A CN 103721581 A CN103721581 A CN 103721581A CN 201310688681 A CN201310688681 A CN 201310688681A CN 103721581 A CN103721581 A CN 103721581A
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- ultrafiltration membrane
- polyvinylidene fluoride
- hydrophilic pvdf
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Abstract
The invention discloses a hydrophilic PVDF (polyvinylidene fluoride) ultrafiltration membrane which is prepared by the following raw materials in parts by mass: 45 parts of propylene carbonate, 5-8 parts of polymethyl methacrylate with average molecular weight of 60000, 1-5 parts of adipic acid, 6-9 parts of polyoxyethylene with average molecular weight of 30000, 55 parts of gamma-butyrolactone, and 45 parts of polyvinylidene fluoride with average molecular weight of 250000. The PVDF ultrafiltration membrane has better chemical cleaning resistance and hydrophilicity, high strength, great flux, good toughness and excellent pollution resistance.
Description
Technical field
The present invention relates to hydrophilic PVDF ultrafiltration membrane.
Background technology
Most commercial super, micro-filtration membrane effect is all undesirable, cannot meet industrial requirement.At present super, the most employing phase separation of micro-filtration membrane legal system is standby, the film of making comprises the large cavity structure of finger-like mostly, and membrane aperture skewness, intensity difference are used easy fracture of wire in sewage, membrane lifetime is short, is unsuitable for applying in membrane biological reactor process.
Summary of the invention
The object of the present invention is to provide a kind of hydrophilic PVDF ultrafiltration membrane, it has good chemically-resistant cleaning and hydrophily, and intensity is high, flux is large, good toughness, has good contamination resistance.
For achieving the above object, technical scheme of the present invention is a kind of hydrophilic PVDF ultrafiltration membrane of design, by following raw material, is made:
45 mass parts propylene carbonates,
The polymethyl methacrylate that 5～8 mass parts mean molecule quantities are 60000,
1～5 adipic acid,
The polyoxyethylene that 6～9 mass parts mean molecule quantities are 30000,
55 mass parts gamma-butyrolactons,
The Kynoar that 45 mass parts mean molecule quantities are 250000.
Advantage of the present invention and beneficial effect are: a kind of hydrophilic PVDF ultrafiltration membrane is provided, and it has good chemically-resistant cleaning and hydrophily, and intensity is high, flux is large, good toughness, has good contamination resistance.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
The concrete technical scheme of implementing of the present invention is:
Embodiment 1
A kind of hydrophilic PVDF ultrafiltration membrane, by following raw material, made:
45 mass parts propylene carbonates,
The polymethyl methacrylate that 5 mass parts mean molecule quantities are 60000,
1 adipic acid,
The polyoxyethylene that 6 mass parts mean molecule quantities are 30000,
55 mass parts gamma-butyrolactons,
The Kynoar that 45 mass parts mean molecule quantities are 250000.
Embodiment 2
A kind of hydrophilic PVDF ultrafiltration membrane, by following raw material, made:
45 mass parts propylene carbonates,
The polymethyl methacrylate that 8 mass parts mean molecule quantities are 60000,
5 adipic acids,
The polyoxyethylene that 9 mass parts mean molecule quantities are 30000,
55 mass parts gamma-butyrolactons,
The Kynoar that 45 mass parts mean molecule quantities are 250000.
Embodiment 3
A kind of hydrophilic PVDF ultrafiltration membrane, by following raw material, made:
45 mass parts propylene carbonates,
The polymethyl methacrylate that 5.8 mass parts mean molecule quantities are 60000,
1.5 adipic acids,
The polyoxyethylene that 6.9 mass parts mean molecule quantities are 30000,
55 mass parts gamma-butyrolactons,
The Kynoar that 45 mass parts mean molecule quantities are 250000.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. hydrophilic PVDF ultrafiltration membrane, is characterized in that, by following raw material, is made:
45 mass parts propylene carbonates,
The polymethyl methacrylate that 5～8 mass parts mean molecule quantities are 60000,
1～5 adipic acid,
The polyoxyethylene that 6～9 mass parts mean molecule quantities are 30000,
55 mass parts gamma-butyrolactons,
The Kynoar that 45 mass parts mean molecule quantities are 250000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310688681.0A CN103721581A (en) | 2013-12-17 | 2013-12-17 | Hydrophilic PVDF (polyvinylidene fluoride) ultrafiltration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310688681.0A CN103721581A (en) | 2013-12-17 | 2013-12-17 | Hydrophilic PVDF (polyvinylidene fluoride) ultrafiltration membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103721581A true CN103721581A (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310688681.0A Pending CN103721581A (en) | 2013-12-17 | 2013-12-17 | Hydrophilic PVDF (polyvinylidene fluoride) ultrafiltration membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103721581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536572A (en) * | 2016-01-18 | 2016-05-04 | 江苏工程职业技术学院 | Portable water purification suction pipe prepared from ultrafiltration film wires |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879418A (en) * | 2010-08-18 | 2010-11-10 | 天津工业大学 | Preparation method of polyvinylidene fluoride modified film |
| CN101890312A (en) * | 2010-04-23 | 2010-11-24 | 苏州膜华材料科技有限公司 | Hydrophilic PVDF ultrafiltration membrane and preparation method |
| CN103055720A (en) * | 2012-12-31 | 2013-04-24 | 刘沙河 | Hydrophilic modified PVDF and PU mixed taper hole ultrafilteration membrane and preparation method thereof |
-
2013
- 2013-12-17 CN CN201310688681.0A patent/CN103721581A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890312A (en) * | 2010-04-23 | 2010-11-24 | 苏州膜华材料科技有限公司 | Hydrophilic PVDF ultrafiltration membrane and preparation method |
| CN101879418A (en) * | 2010-08-18 | 2010-11-10 | 天津工业大学 | Preparation method of polyvinylidene fluoride modified film |
| CN103055720A (en) * | 2012-12-31 | 2013-04-24 | 刘沙河 | Hydrophilic modified PVDF and PU mixed taper hole ultrafilteration membrane and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536572A (en) * | 2016-01-18 | 2016-05-04 | 江苏工程职业技术学院 | Portable water purification suction pipe prepared from ultrafiltration film wires |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140416 |