New Invention Profile
| Publication No: | IN202311033473 [India] | Application No: | IN202311033473 |
| Title: | Thin film composite membrane with regenerative coating having antifouling/antiscaling property and method of preparation thereof | ||
| Publication Date: | 15-11-2024 | File Date: | 11-05-2023 |
| Inventor(s): | Jewrajka Suresh Kumar; Bera Parthapratim; Biswas Arka | ||
| IPC Classification: | B01D 69/12, B01D 61/02, B01D 67/00, B01D 71/56, C02F 1/44 | ||
| Abstract: | The present invention provides a thin film composite nanofiltration membrane with regenerative coating of polyethyleneimine of low molecular weight and a process for the preparation thereof. The polyethyleneimine coating can be removed and recoated to restore the efficiency of the thin film composite membrane. This helps to reuse the same membrane in cost effective manner. The process involves the preparation of polysulfone support membrane and then interfacial polymerization between piperazine and trimesoyl chloride on top of the support to obtain pristine thin film composite nanofiltration membrane. The prepared thin film composite nanofiltration membrane was coated by dipping in aqueous solution of low molecular weight branched polyethyleneimine. The polyethyleneimine coated membrane was stable in the pH range of 3-9 . The polyethyleneimine coating can be easily removed by the circulation of water of pH range 2 or 9.5 for 1 h and can be recoated again by dipping in polyethyleneimine (0.1% w/v) for 30 m. |
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CSIR-Central Salt & Marine Chemicals Research Institute[CSIR-CSMCRI]
: director[at]csmcri[dot]res[dot]in
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: director[at]csmcri[dot]res[dot]in
:91-278- 2569496 Ext. 6000, 6010
:https://www.csmcri.res.in
Industrial Applications
Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes]
Composites [Materials]
Nanomaterials [Materials]