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1. WO2020134836 - MULTI-DIMENSIONAL HYDROPHILIC-HYDROPHOBIC COMPOSITE NANOFIBER MEMBRANE AND PREPARATION METHOD THEREOF

Publication Number WO/2020/134836
Publication Date 02.07.2020
International Application No. PCT/CN2019/121564
International Filing Date 28.11.2019
IPC
B32B 27/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
02in the form of fibres or filaments
B01D 71/26 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
26Polyalkenes
B01D 71/42 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
40Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
42Polymers of nitriles, e.g. polyacrylonitrile
B01D 71/34 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
30Polyalkenyl halides
32containing fluorine atoms
34Polyvinylidene fluoride
B01D 71/48 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
48Polyesters
B01D 71/68 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
66Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
68Polysulfones; Polyethersulfones
CPC
A62B 18/02
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
18Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes ; or incorporating a pump or compressor for reducing the inhalation effort
02Masks
B01D 67/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
67Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B01D 69/02
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
02characterised by their properties
B01D 69/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
10Supported membranes; Membrane supports
B01D 71/26
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
26Polyalkenes
B01D 71/34
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06Organic material
30Polyalkenyl halides
32containing fluorine atoms
34Polyvinylidene fluoride
Applicants
  • 中国科学院深圳先进技术研究院 SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES [CN]/[CN]
Inventors
  • 高明 GAO, Ming
  • 李佳 LI, Jia
  • 黄逸凡 HUANG, Yifan
  • 喻学锋 YU, Xuefeng
Agents
  • 北京市诚辉律师事务所 BEIJING CHENGHUI LAW FIRM
Priority Data
201811599708.826.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) MULTI-DIMENSIONAL HYDROPHILIC-HYDROPHOBIC COMPOSITE NANOFIBER MEMBRANE AND PREPARATION METHOD THEREOF
(FR) MEMBRANE DE À BASE DE NANOFIBRES COMPOSITES HYDROPHILE-HYDROPHOBE MULTIDIMENSIONNELLE ET SON PROCÉDÉ DE PRÉPARATION
(ZH) 一种多维度亲疏水结构复合纳米纤维膜及其制备方法
Abstract
(EN)
A multi-dimensional hydrophilic-hydrophobic composite nanofiber membrane and a preparation method thereof. The multi-dimensional hydrophilic-hydrophobic composite nanofiber membrane comprises a first hydrophobic layer (1), a first hydrophilic layer (2), a second hydrophilic layer (3), and a second hydrophobic layer (4) sequentially provided from top to bottom. A water contact angle of the first hydrophobic layer (1) and a water contact angle of the second hydrophobic layer (4) are greater than 90 degrees. A water contact angle of the first hydrophilic layer (2) and a water contact angle of the second hydrophilic layer (3) are less than 70 degrees. The second hydrophobic layer (4) is a nanofiber-based membrane. The above composite nanofiber membrane having a multi-dimensional hydrophilic-hydrophobic gradient structure is prepared by means of plasma technology and electrospinning technology. The membrane material achieves directional adsorption and fixation of particulate matter, and has a good filtration effect.
(FR)
La présente invention concerne une membrane à base de nanofibres composites hydrophile-hydrophobe multidimensionnelle et son procédé de préparation. La membrane à base de nanofibres composites hydrophile-hydrophobe multidimensionnelle comprend une première couche hydrophobe (1), une première couche hydrophile (2), une seconde couche hydrophile (3), et une seconde couche hydrophobe (4) disposées séquentiellement de haut en bas. Un angle de contact avec l'eau de la première couche hydrophobe (1) et un angle de contact avec l'eau de la seconde couche hydrophobe (4) sont supérieurs à 90 degrés. Un angle de contact avec l'eau de la première couche hydrophile (2) et un angle de contact avec l'eau de la seconde couche hydrophile (3) sont inférieurs à 70 degrés. La seconde couche hydrophobe (4) est une membrane à base de nanofibres. Ladite membrane à base de nanofibres composite présentant une structure de gradient hydrophile-hydrophobe multidimensionnelle est préparée au moyen d'une technologie de plasma et d'une technologie d'électrofilage. Le matériau de la membrane permet une adsorption directionnelle et une fixation de matière particulaire, et possède un bon effet de filtration.
(ZH)
一种多维度亲疏水结构复合纳米纤维膜及其制备方法。这种多维度亲疏水结构复合纳米纤维膜包括由上至下依次设置的第一疏水层(1)、第一亲水层(2)、第二亲水层(3)、第二疏水层(4);其中,第一疏水层(1)和第二疏水层(4)的水接触角分别大于90度,第一亲水层(2)和第二亲水层(3)的水接触角分别小于70度;第二疏水层(4)为纳米纤维基膜。利用等离子体技术和静电纺丝技术制备得到上述多维度亲疏水梯度结构复合纳米纤维膜。此膜材料可以实现颗粒物的定向吸附固定,具备较好的过滤效果。
Also published as
Latest bibliographic data on file with the International Bureau