FIELD: membrane technologies.
SUBSTANCE: invention relates to membrane technologies and can be used for modification of nanoporous membranes in order to improve their hydrophobic properties to increase efficiency of membrane contactors, and can be used in membrane gas/liquid contactors to increase gas mix components extraction efficiency. Method of modifying the surface of the nanoporous membrane involves hydrophobisation of the surface of the membrane by forming a coating from compounds which form fluorine-containing functional groups.
EFFECT: technical result is creation of modified nanoporous polymer membrane with improved hydrophobic properties.
3 cl, 8 dwg, 1 tbl, 8 ex
Title | Year | Author | Number |
---|---|---|---|
MEMBRANE CONTACTOR FOR CLEANING NATURAL AND TECHNOLOGICAL GASES FROM ACID COMPONENTS | 2018 |
|
RU2672452C1 |
METHOD OF RETRIEVING COMPONENTS FROM NATURAL AND PETRACTION OF TECHNOLOGICAL GAS MIXTURES ON NANOPOROUS MEMBRANES | 2016 |
|
RU2626645C1 |
ABSORPTION-CONDENSATION METHOD OF DRYING NATURAL AND PROCESS GAS MIXTURES ON NANOPOROUS MEMBRANES | 2019 |
|
RU2729243C1 |
METHOD FOR INCREASING SELECTIVITY OF NANOPOROUS MEMBRANES FOR EXTRACTION OF CONDENSED COMPONENTS FROM GAS MIXTURES AND MODIFIED MEMBRANE OBTAINED USING SAID METHOD | 2017 |
|
RU2696445C2 |
COMPOSITE MEMBRANE FOR DRYING NATURAL AND PROCESS GAS MIXTURES BASED ON GRAPHENE OXIDE INTERCALATED WITH HYDROXYLATED FULLERENE DERIVATIVES | 2019 |
|
RU2730320C1 |
SURFACE PROCESSING FOR POLYMER MEMBRANE MATERIALS | 2011 |
|
RU2467790C1 |
METHOD OF PROCESSING POLYMER MEMBRANE MATERIAL SURFACE | 2011 |
|
RU2468856C1 |
METHODS FOR MANUFACTURE OF HIGHLY SELECTIVE MEMBRANES WITH FACILITATED TRANSFER | 2019 |
|
RU2783529C2 |
COMPOSITE MEMBRANE ON BASIS OF HIGHLY POROUS VITREOUS POLYMERS | 2012 |
|
RU2491983C1 |
COMPOSITE MEMBRANE FOR DRYING GAS MIXTURES BASED ON A MICROPOROUS POLYMER IN POROUS MATRIX | 2018 |
|
RU2720247C1 |
Authors
Dates
2020-04-15—Published
2018-12-27—Filed