Title:
膜分離活性汚泥処理用半透膜用支持体
Document Type and Number:
Japanese Patent JP7328102
Kind Code:
B2
Abstract:
To provide a supporter for a semipermeable membrane for membrane separation activated sludge treatment which is excellent in solvent resistance, and in which adhesive strength between itself and a semipermeable membrane is high when a coating liquid for formation of the semipermeable membrane is applied thereon, and a roll is hard to get dirty when processing a thermal calendar.SOLUTION: A supporter for a semipermeable membrane for membrane separation activated sludge treatment contains drawn polyester fiber as main fiber, and contains core sheath type polyester composite fiber with a sheath part of crystalline copolymer polyester as binder fiber, and a change ΔH in enthalpy of cold crystallization peak of the core sheath type polyester composite fiber per unit mass of the supporter for semipermeable membrane by differential scanning calorimetry is 0.2 J/g or more.SELECTED DRAWING: None
Inventors:
Yuri Nogami
Application Number:
JP2019174445A
Publication Date:
August 16, 2023
Filing Date:
September 25, 2019
Export Citation:
Assignee:
Mitsubishi Paper Mills Co., Ltd.
International Classes:
B01D71/48; B01D69/10; C02F3/12; D04H1/435; D21H13/24; D21H15/10
Domestic Patent References:
| JP2019034304A | ||||
| JP2010194478A |
Foreign References:
| US20050006301 |