Method for manufacturing self-healing hydrogel-filled separation membrane for water treatment
AssigneesYale University, Kolon Global Corporation
InventorsBezawit Asheber Getachew, Sang-ryoung Kim, Jae-hong Kim, Seung-joon Kim, Seong-kyun Yim, Moon-sun Kang
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Abstract
A method for manufacturing a self-healing hydrogel-filled separation membrane for water treatment includes soaking a porous support comprising pores in a monomer solution to fill the pores with the solution, removing the excessively filled monomer solution from the porous support, and forming a hydrogel in the pores by crosslinking the monomer. The separation membrane does not require an additional repair process when damage occurs to the separation membrane and can exhibit superior self-healing effect and physical stability.
Claims10
A method for manufacturing a self-healing separation membrane for water treatment, the method comprising:
- soaking a porous support having pores in a monomer solution to fill the pores with the monomer solution;
- removing an excessively filled monomer solution from the porous support;
- and
- forming a hydrogel in the pores by irradiating UV to the filled monomer solution without a photoinitiator to form a covalent bonding between the porous support and monomers of the filled monomer solution and polymerize the monomers through graft polymerization,
- wherein the porous support is formed of a polymer selected from the group consisting of polyethersulfone and polysulfone;
- the monomer solution comprises at least 20 wt % of the monomers;
- and
- the monomers are at least one selected from the group consisting of acrylamidoxime, N-acryloyl tris(hydroxymethyl)methylamine, N,N-diethylacrylamide, N,N-dimethylacrylamide, 2-(N,N-dimethylamino)ethyl acrylate, 2-(N,N-dimethylamino)ethyl methacrylate, N-[3-(N,N-dimethylamino)propyl]methacrylamide, dodecyl methacrylamide, N-(hydroxymethyl)acrylamide, N-methacryloylacrylamide, octylacrylamide, acrylamido-2-methyl-1-propanesulfonic acid (AMPS), and (3-acrylamidopropyl) trimethyl ammonium chloride (APTAC).
Dependencies are inferred from the claim text.