Abstract:
PURPOSE: A hybrid porous structure, a method for manufacturing the hybrid porous structure, a separating membrane including the hybrid porous structure, and a water treatment device including the same are provided to function as a separating membrane for variety of separating target materials. CONSTITUTION: A hybrid porous structure(10) includes a non-porous template(2), an ionic polymer coating layer(1), pores, and necks. The necks are in connection with pores arranged at the center part of a spherical body. A method for manufacturing the hybrid porous structure includes the following steps of: forming a laminate by laminating a plurality of spherical particles for forming macropores to be bordered in a three dimensional direction; forming a non-porous template by injecting a material for forming the non-porous template and curing; forming a non-porous template with densely laminated spherical macropores by dissolving and removing the spherical particles for forming macropores; and coating the inner surface of the macropores of the non-porous template with an ionic polymer solution to form an ionic polymer coating layer, and forming the hybrid porous structure.
Abstract:
PURPOSE: A separating membrane, a manufacturing method of the same, and a composite membrane including the same are provided to form a water treatment module with high energy efficiency. CONSTITUTION: A separating membrane includes polyacyrlonitrile-based copolymer(301). The polyacyrlonitrile-based copolymer includes hydrophobic side chains or hydrophobic repeating units(303). The separating membrane includes a skin layer(101) and a porous layer(102). The thickness ratio of the skin layer to the porous layer is 0.01 or less. The thickness of the skin layer is 1um or less.
Abstract:
Provided are a hybrid porous structure which comprises a matrix including a plurality of first pores interconnected toward 3D direction and porous materials including second pores filling some or entire of each first pore; the use of the same as a separation membrane; and a manufacturing method thereof.
Abstract:
The present invention provides: an organic/inorganic hybrid compound with fouling resistance including a vinyl based first structure unit block including a polygonal oligomer silsesquioxane core and one or more arms connected to at least one Si of polygonal oligomer silsesquioxane, wherein the arms include at least one hydrophilic group on a side chain, and a vinyl based second structure unit block including a hydrophobic group on a side chain; and a fouling resistant membrane including the same. [Reference numerals] (AA) SRC15 (comparative example 3); (BB) SBC13 (example 1); (CC) SBC13 (example 2)
Abstract:
PURPOSE: A separating membrane, a manufacturing method of the same, and a forward osmosis water treatment apparatus including the separating membrane are provided to improve intensity and porosity by including esterified cellulose ether with high molecular weight. CONSTITUTION: A separating membrane includes one or more polymers with structure units represented by chemical formula 1. The contact angle of the separating membrane is in a range between 50 and 65 degrees. A manufacturing method of the polymers with the structural units includes the following steps: a cellulose ether compound with at least one hydroxyl group by etherifying a cellulose compound; and the cellulose ether compound is esterified to obtain esterified cellulose ether.
Abstract:
복수의가상의구형체형상이 3차원방향으로서로접하도록쌓인가상의적층체에서상기가상의구형체간의간극을메우는형상의비다공성템플레이트(template); 및상기가상의적층체형상내부에존재하도록상기비다공성템플레이트내부에적층된이온성고분자코팅층을포함하는혼성다공성구조체가제공된다. 상기가상의구형체내부의중심부에기공이형성될수 있다. 상기혼성다공성구조체는두 개의상기가상의구형체형상이접하는영역에형성된기공인네크(neck)를복수개 포함할수 있다. 상기네크는상기구형체내부의중심부에존재하는기공과연결(interconnected)될수 있다.
Abstract:
A forward osmosis water treatment device using a separating membrane as a forward osmosis water treatment device which includes a polymer layer in which a function group having an osmosis draw solute inside an osmosis draw solution and chemical affinity is introduced is provided. The present invention relates to a forward osmosis water treatment device which includes a feed solution containing separation target materials; a osmosis draw solution receiving unit having osmosis concentration higher than that of the feed water; a first housing unit including a separation membrane arranged between the feed water receiving unit and the osmosis draw solution receiving unit; a second housing unit for storing the osmosis draw solution which supplies the osmosis draw solution to the first housing unit and recovers the osmosis draw solution; and a recovery device which separates and recovers the solute of the osmosis draw solution.