Sheath-core conjugated fiber for supporter of water treatment separation membrane, supporter comprising same for water treatment separation membrane, water treatment separation membrane comprising same, and filter module comprising same
AssigneeToray Advanced Materials Korea Inc.
InventorsGeon Sang Lee, Sung Geun Cho, Song Jung Han, Do Hyun Kim
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Abstract
The present invention relates to a sheath-core conjugated fiber for a supporter of a water treatment separation membrane, the fiber being harmless to the human body without the elution of heavy metals and having excellent color transparency and strength, a supporter comprising the same for a water treatment separation membrane, a water treatment separation membrane comprising the same, and a filter module comprising the same.
Claims5
A sheath-core conjugated fiber for a supporter of a water treatment membrane, comprising a sheath and a core in a cross-sectional area ratio of 1:1.5 to 1:4.0,
- wherein the sheath comprises a polyester resin for sheath,
- wherein the polyester resin for sheath comprises a polycondensation product obtained by ester reaction and polycondensation reaction of an acid component;
- and a diol component,
- wherein the acid component comprises 20 to 40 mol % of isophthalic acid (IPA) and the remaining amount of terephthalic acid (TPA),
- wherein the diol component comprises 13 to 40 mol % of a compound represented by Chemical Formula 1-1 below and the remaining amount of a compound represented by Chemical Formula 1-4 below, or 0.1 to 5 mol % of a compound represented by Chemical Formula 1-2 below and the remaining amount of a compound represented by Chemical Formula 1-4 below:
- wherein the polyester resin for sheath has a carboxyl group (—COOH) content of (1.0 to 4.0)×107 eg/g.
Dependencies are inferred from the claim text.