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US 10,239,021 B2Granted
Fouling resistant coating for filtration membranes and methods of producing and using same
AssigneeTeledyne Scientific & Imaging, LLC
InventorsRahul Ganguli, Vivek Mehrotra, Tony Ten-Luen Liao
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Abstract
A conformal coating that resists fouling by waterborne contamination in aquatic environments, a method for fabricating the coating, and a filter having such a coating are disclosed. The coating comprises a hydrophilic polymer and a surfactant wherein the surfactant undergoes a phase change upon exposure to a saline solution. Also disclosed are in situ methods for regenerating anti-fouling filters having the fouling resistant coating.
Claims2
A filtration membrane, comprising:
- a membrane comprising coated pores, said pores coated with a coating solution comprising:
- N-erucyl-N,N-bis(2-hydroxyethyl)-N-methyl ammonium chloride (EMHAC),
- wherein the concentration of EMHAC in said coating solution is greater than 20 wt %;
- and
- polydopamine, said coating solution comprising less than 1% polydopamine;
- such that the thickness of the resulting coating is less than or equal to 20 nm.
3 more elements
Dependencies are inferred from the claim text.