Composite Membrane for Industrial Water Filtration
A technology of nanofiltration membrane and filtration membrane, which is applied in the direction of chemical instruments and methods, membranes, membrane technology, etc., and can solve the problems of high manufacturing and operating costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment approach 1A
[0027] Exemplary Embodiment 1A: PES Nanofiber Membrane
[0028] PES nanofibrous membranes can be prepared on PET support fabrics. PES was dissolved in a DMF solution, wherein PES comprised 20% to 30% by weight of the solution. More specifically, in the resulting PES membrane figure 1 In the imaging shown, a 25% by weight solution of PES was used. Load the DMF / PES polymer solution into the electrospinning machine. During the electrospinning process, the applied voltage was in the working range of 40 kV to 50 kV. The receiving distance is in the range of about 150mm to 200mm. The solution flow rate into the nozzles ranged from 0.5 ml to 1 ml per hour per nozzle. An electrospinning machine can have multiple jets (eg, 4 to 8 jets on a multi-jet machine can be used). figure 1The resulting PES polymer film applied to a PET support material is depicted in , which shows a SEM micrograph of PES nanofibers at 1000X magnification using a 25% solution of PES in DMF.
Embodiment approach 1B
[0029] Exemplary Embodiment 1B: PES Nanofiber Membrane
[0030] PES nanofibrous membranes can be prepared on PET support fabrics. PES was dissolved in the DMAc solution, wherein PES comprised 20% to 30% by weight of the solution. More specifically, in the obtained PES membrane figure 2 In the imaging shown in , a 23% by weight solution of PES was used. Load the DMAc / PES polymer solution into the electrospinning machine. During the electrospinning process, the applied voltage was in the working range of 40 kV to 50 kV. The receiving distance is in the range of about 150mm to 200mm. The solution flow rate into the nozzles ranged from 0.5 ml to 1 ml per hour per nozzle. An electrospinning machine can have multiple jets (eg, 4 to 8 jets on a multi-jet machine can be used). figure 2 The resulting PES polymer film applied to a PET support material is depicted in , which shows a SEM micrograph of PES nanofibers at 5000X magnification using a 23% solution of PES in DMAc.
Embodiment approach 2A
[0031] Exemplary Embodiment 2A: Nanoporous Polyamide Membrane
[0032] Nanoporous polyamide membranes for active separations can be prepared for application on PES filter membranes. TEGDA was dissolved in deionized water to obtain a 1.5% by weight TEGDA solution. TMC was dissolved in hexane to obtain a 0.15% by weight TMC solution. The aqueous and hexane solutions were loaded into different syringes in the electrospinning machine for spraying through different spray heads. Under the following operating parameters set, these solutions were simultaneously electrostatically sprayed onto the PES nanofiber filter membrane. During electrostatic spraying, the applied voltage has a working range of 40kV to 50kV. The receiving distance is in the range of about 200mm to 300mm. The solution flow rate into the nozzles ranged from 30ml to 40ml per hour per nozzle. In this process, two spray heads were used, one for aqueous solution and the other for hexane solution. The resulting pol...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| water contact angle | aaaaa | aaaaa |
| water contact angle | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More