CN105817144A - Preparation method of water single channel polymer membrane - Google Patents
Preparation method of water single channel polymer membrane Download PDFInfo
- Publication number
- CN105817144A CN105817144A CN201610151803.6A CN201610151803A CN105817144A CN 105817144 A CN105817144 A CN 105817144A CN 201610151803 A CN201610151803 A CN 201610151803A CN 105817144 A CN105817144 A CN 105817144A
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- China
- Prior art keywords
- single channel
- preparation
- membrane
- adhesive tape
- water single
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Classifications
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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
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/122—Separate manufacturing of ultra-thin membranes
-
- 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
- B01D2325/00—Details relating to properties of membranes
- B01D2325/36—Hydrophilic membranes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a preparation method of a water single channel polymer membrane, relates to the field of single channel polymer membrane preparation method, and aims to provide a simple preparation method of a polymer membrane that allows unidirectional pass of water. The water single channel polymer membrane is prepared by peeling a hydrophilic polytetrafluoroethylene composite microfiltration membrane by an adhesive tape. The preparation method has the advantages that the operation is simple, the preparation method can be applied to massive production, the characteristic of water single channel can be given to the polymer membrane at a time, and the effect is good.
Description
Technical field
The present invention relates to the preparation method of a kind of water single channel polymeric membrane.
Background technology
The unidirectional transport of liquid is not on the premise of spending additional energy so that liquid removed on one's own initiative by relatively thin perforated membrane from some region, is therefore possible to prevent the pollution during fluid accumulation and associated fluid liquid transport.The characteristic of these uniquenesses is highly useful to fields such as development, desalinization, fuel cell, biomedical material and the intelligent textiles of new membrane isolation technics.These tempting development prospects promote that three-dimensional porous double-side membrane develops to having oriented control function direction.Some key elements about preparing liquid single channel film: (1) membrane material should be porous, facilitates passing through of drop；(2) membrane material should have asymmetrical wettability, such as side and shows as hydrophobicity, and opposite side shows as hydrophilic；(3) side of film should be sufficiently thin and another side is thicker, or membrane material should possess the gradient wettability in cross section.But, in order to make double single channel polymeric membrane have more actual application, it is necessary to overcome the obstacles such as such as complicated process, harsh preparation condition and high cost.
We have found that, business-like politef composite micro-filtration membrane be expanded PTFE (e-PTFE) microporous filter membrane special process is compounded on various base material (such as polyester felt, PET, PP non-woven fabrics etc.) laminating after filtrate both kept the intrinsic high chemical stability of politef, low-friction coefficient, high-low temperature resistant, anti-aging etc., molecule can be kept out, have again the characteristics such as the unrivaled breathability of general coated filter material, water proofing property.And use the mode selecting layer simply stripping off hydrophilic politef composite micro-filtration membrane, we can prepare the single pass polymeric membrane of water, the preparation method of water single channel polymeric membrane prepared by this mentality of designing is simple, can be with large-scale production, can disposably give polymeric membrane with water single channel characteristic, effect is preferable.
Summary of the invention
The present invention solves current most of water single channel material prepare loaded down with trivial details, cost is the highest, the problem that needs special installation; using adhesive tape to peel off politef composite micro-filtration membrane selects the mode of layer to prepare water single channel thin film; widen the preparation method of water single channel thin film, prepared water single channel polymeric membrane for scale and offer reference.
For realizing the object of the invention, it is provided that techniques below scheme: 1. the preparation method of a water single channel polymeric membrane, it is characterised in that comprise the following steps:
(1) using hydrophilic politef composite micro-filtration membrane as release liner；
(2) adhesive tape is attached to the i.e. selection aspect in front of hydrophilic politef composite micro-filtration membrane；
(3) selecting layer by adhesive tape peel-away removal, after stripping, remaining filter membrane is i.e. water single channel polymeric membrane.
As preferably, adhesive tape includes adhesive tape, aluminum foil and adhesive tape.
As preferably, hydrophilic politef composite micro-filtration membrane is composited with base material by politef.
As preferably, base material includes polyester felt, PET, PP non-woven fabrics.
The method have the benefit that the present invention utilizes adhesive tape to peel off composite membrane and selects the mode of layer to prepare water single channel polymeric membrane, both have effectively achieved the single channel characteristic of water, and provided a kind of pervasive mode preparing single channel functional membrane simultaneously.The water single channel polymeric membrane prepared according to the technology of the present invention can be widely applied to oil-water separation, Intelligent Measurement and the field such as micro-fluidic.
Accompanying drawing explanation
Fig. 1 is the digital photograph that the water single channel polymeric membrane that hydrophilic politef composite micro-filtration membrane selects layer to prepare peeled off by adhesive tape.
Fig. 2 is the digital photograph that the adhesive tape release surface water droplet of water single channel polymeric membrane of preparation passes through.
Fig. 3 is the intransitable digital photograph of reverse side water droplet of the water single channel polymeric membrane of preparation.
Fig. 4 is the adhesive tape release surface contact angle with water of the water single channel polymeric membrane of preparation.
Fig. 5 is the reverse side contact angle with water of the water single channel polymeric membrane of preparation.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is further described; but it is not limited thereto; every technical solution of the present invention is modified or equivalent, without deviating from the spirit and scope of technical solution of the present invention, all should contain in protection scope of the present invention.
Embodiment 1:
A. adhesive tape is attached to the front (selection aspect) of the hydrophilic politef composite micro-filtration membrane of PET base material；
B. the selection layer removing composite membrane, remaining filter membrane i.e. water single channel polymeric membrane after stripping is peeled off by adhesive tape.
Embodiment 2: with reference to embodiment 1, change adhesive tape into aluminum foil and adhesive tape.
Embodiment 3: with reference to embodiment 1 or 2, the filter membrane that politef hydrophylic filter membranes is PP nonwoven fabric base of PET base.
Embodiment 4: with reference to embodiment 3, the filter membrane that politef hydrophylic filter membranes is polyester felt base of PET base.
As shown in Figure 1, adhesive tape is utilized easily and effectively layer can be selected to peel away the politef of composite membrane.
As shown in Figure 2, the adhesive tape release surface of the water single channel polymeric membrane of preparation can allow water droplet to pass through effectively.
From the figure 3, it may be seen that the reverse side of water single channel polymeric membrane of preparation can stop water droplet to pass through effectively, merely lateral sprawl.
As shown in Figure 4, the adhesive tape release surface of the water single channel polymeric membrane of preparation presents hydrophobic performance, and water droplet can permeate in the past at short notice.
As shown in Figure 5, the reverse side of the water single channel polymeric membrane of preparation presents super hydrophilicity, close to 0o。
Claims (4)
1. the preparation method of a water single channel polymeric membrane, it is characterised in that comprise the following steps:
(1) using hydrophilic politef composite micro-filtration membrane as release liner；
(2) adhesive tape is attached to the i.e. selection aspect in front of hydrophilic politef composite micro-filtration membrane；
(3) selecting layer by adhesive tape peel-away removal, after stripping, remaining filter membrane is i.e. water single channel polymeric membrane.
The preparation method of a kind of water single channel polymeric membrane the most according to claim 1, it is characterised in that adhesive tape includes adhesive tape, aluminum foil and adhesive tape.
The preparation method of a kind of water single channel polymeric membrane the most according to claim 1, it is characterised in that hydrophilic politef composite micro-filtration membrane is composited with base material by politef.
The preparation method of a kind of water single channel polymeric membrane the most according to claim 3, it is characterised in that base material includes polyester felt, PET, PP non-woven fabrics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151803.6A CN105817144A (en) | 2016-03-17 | 2016-03-17 | Preparation method of water single channel polymer membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151803.6A CN105817144A (en) | 2016-03-17 | 2016-03-17 | Preparation method of water single channel polymer membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105817144A true CN105817144A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610151803.6A Pending CN105817144A (en) | 2016-03-17 | 2016-03-17 | Preparation method of water single channel polymer membrane |
Country Status (1)
| Country | Link |
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| CN (1) | CN105817144A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117732286A (en) * | 2023-12-18 | 2024-03-22 | 上海乐纯生物技术股份有限公司 | High-penetration gradient spongy structure ultrafiltration membrane and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553457A (en) * | 2010-12-23 | 2012-07-11 | 上海一鸣过滤技术有限公司 | Preparation method of microporous membrane with hydrophilicity and hydrophobicity |
| CN105126647A (en) * | 2015-09-10 | 2015-12-09 | 南京大学 | Preparation method for efficient oil-water separation composite ultrafiltration membrane |
-
2016
- 2016-03-17 CN CN201610151803.6A patent/CN105817144A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553457A (en) * | 2010-12-23 | 2012-07-11 | 上海一鸣过滤技术有限公司 | Preparation method of microporous membrane with hydrophilicity and hydrophobicity |
| CN105126647A (en) * | 2015-09-10 | 2015-12-09 | 南京大学 | Preparation method for efficient oil-water separation composite ultrafiltration membrane |
Non-Patent Citations (1)
| Title |
|---|
| HIROSHI YABU: "Superhydrophobic and Lipophobic Properties of Self-Organized Honeycomb and Pincushion Structures", 《LANGMUIR》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117732286A (en) * | 2023-12-18 | 2024-03-22 | 上海乐纯生物技术股份有限公司 | High-penetration gradient spongy structure ultrafiltration membrane and preparation method thereof |
| CN117732286B (en) * | 2023-12-18 | 2024-06-07 | 上海乐纯生物技术股份有限公司 | High-penetration gradient spongy structure ultrafiltration membrane and preparation method thereof |
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Application publication date: 20160803 |
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