摘要:
RO membranes using chlorinated water as a feed stream maybe protected from damage by the chlorine with a protective layer including reactive nitrogen which forms chloramines on the surface of the membrane that reduce chlorine penetration. This protective layer also provides substantial anti-fouling capabilities, whether used with a chlorinated or unchlorinated feed stream because the chloramines are anti-bacterial. Although chlorine is lost in use, the anti-fouling layer or coating can be recharged with additional chlorine without damaging the discrimination layer. The anti-fouling layer or coating may be advantageously used with Thin film composite, TFC, membranes for use in forward and reverse osmosis may include nanoparticles, monohydrolyzed and/or di-hydrolyzed TMC, and/or alkaline earth alkaline metal complexes or other additives.
摘要:
Provided is a spiral separation membrane element equipped with: a water collection pipe; a separation membrane which is wound around the periphery of the water collection pipe, which has a supply-side surface and a percolation-side surface, and which has a band-shaped region provided to at least one end of the supply-side surface in the length direction of the water collection pipe; and a flow path material which is thermally sealed to the band-shaped region.
摘要:
A poly(methyl methacrylate) (PMMA) membrane having a highly porous, reticulated, 3-D structure suitable for lateral flow diagnostic applications is described. Also described is a method for producing a poly(methyl methacrylate) (PMMA) membrane that comprises the steps of mixing a suitable amount of PMMA, a solvent and a optionally one of either a co-solvent or a non-solvent to produce a solution, casting a thin film of the solution onto a support, and removal of the solvent from the solution to produce the PMMA membrane. A lateral flow diagnostic device comprising a highly porous PMMA membrane as a reaction membrane is also described.
摘要:
A microporous structure includes an array of nano wires and a coating about the nano wires of the array. The coating defines pores between the nano wires.
摘要:
Disclosed is an air-permeable filter with an adhesive layer. This air-permeable filter is imparted with oil repellency and includes: a porous membrane having a surface coated with an oil-repellent agent; and an adhesive layer disposed on the surface. The oil-repellent agent contains a linear fluorine-containing hydrocarbon group represented by (1) -R 1 C 5 F 10 CH 2 C 4 F 9 or (2) -R 2 C 6 F 13 , where R 1 and R 2 are each independently an alkylene group having 1 to 12 carbon atoms or a phenylene group. This air-permeable filter is imparted with oil repellency without significantly reducing its adhesive strength to the adhesive layer.
摘要:
The present disclosure relates to improved semipermeable membranes based on acrylonitrile copolymers for use in dialyzers for the extracorporeal treatment of blood in conjunction with hemodialysis, hemofiltration or hemodiafiltration. The present disclosure further relates to methods of producing such membranes.
标题翻译:WASSERDICHTE ATMUNGSAKTIVE MEMBRAN,WASSERDICHTE ATMUNGSAKTIVE KOMPONENTE DAMIT,WASSERDICHTE ATMUNGSAKTIVE STRUKTUR UND WASSERDICHTEKLANGDURCHLÄSSIGEMEMBRAN