Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Atmospheric water collection nanofiber membrane with sandwich structure and preparation method thereof
The invention discloses an atmospheric water collection nanofiber membrane with a sandwich structure and a preparation method of the atmospheric water collection nanofiber membrane, and belongs to the technical field of textile science. The preparation method comprises the following steps: firstly, respectively preparing hydrophilic and hydrophobic nanofiber membranes with controllable internal pore diameters and a fiber diameter of 50-200nm and a pore diameter of 57-1.8 mm through electrostatic spinning, and then coating a layer of hydrophilic nanofiber membrane loaded with hygroscopic metal salt with two layers of hydrophobic nanofiber membranes, the atmospheric water collection nanofiber membrane with the hydrophobic-hydrophilic-hydrophobic sandwich structure is prepared. The two outer hydrophobic nanofiber membranes in the prepared atmospheric water collection nanofiber membrane can limit captured water in the hydrophilic layer, so that leakage of collected liquid water and metal salt is effectively prevented, and the captured water can be released in the form of water vapor under sunlight; continuous circulating water absorption/desorption of atmospheric water is achieved, and the service life of the atmospheric water collecting device is prolonged.
本发明公开了一种三明治结构的大气集水纳米纤维膜及其制备方法，属于纺织科学技术领域。本发明首先通过静电纺丝分别制备纤维直径在50‑200nm之间、孔径在57nm‑1.8mm之间的内部孔径可控的亲水、疏水纳米纤维膜，然后采用两层疏水纳米纤维膜包裹一层负载吸湿性金属盐的亲水纳米纤维膜，制得疏水‑亲水‑疏水三明治结构的大气集水纳米纤维膜。本发明制备的大气集水纳米纤维膜中外面两层疏水性的纳米纤维膜可以将捕获到的水限制在亲水层中，有效防止所收集到的液态水和金属盐的泄漏，并可在太阳光下将捕获到的水以水蒸气的形式释放出来，实现大气水的持续循环吸水/解吸，提高大气水收集装置的使用寿命。
Atmospheric water collection nanofiber membrane with sandwich structure and preparation method thereof
The invention discloses an atmospheric water collection nanofiber membrane with a sandwich structure and a preparation method of the atmospheric water collection nanofiber membrane, and belongs to the technical field of textile science. The preparation method comprises the following steps: firstly, respectively preparing hydrophilic and hydrophobic nanofiber membranes with controllable internal pore diameters and a fiber diameter of 50-200nm and a pore diameter of 57-1.8 mm through electrostatic spinning, and then coating a layer of hydrophilic nanofiber membrane loaded with hygroscopic metal salt with two layers of hydrophobic nanofiber membranes, the atmospheric water collection nanofiber membrane with the hydrophobic-hydrophilic-hydrophobic sandwich structure is prepared. The two outer hydrophobic nanofiber membranes in the prepared atmospheric water collection nanofiber membrane can limit captured water in the hydrophilic layer, so that leakage of collected liquid water and metal salt is effectively prevented, and the captured water can be released in the form of water vapor under sunlight; continuous circulating water absorption/desorption of atmospheric water is achieved, and the service life of the atmospheric water collecting device is prolonged.
本发明公开了一种三明治结构的大气集水纳米纤维膜及其制备方法，属于纺织科学技术领域。本发明首先通过静电纺丝分别制备纤维直径在50‑200nm之间、孔径在57nm‑1.8mm之间的内部孔径可控的亲水、疏水纳米纤维膜，然后采用两层疏水纳米纤维膜包裹一层负载吸湿性金属盐的亲水纳米纤维膜，制得疏水‑亲水‑疏水三明治结构的大气集水纳米纤维膜。本发明制备的大气集水纳米纤维膜中外面两层疏水性的纳米纤维膜可以将捕获到的水限制在亲水层中，有效防止所收集到的液态水和金属盐的泄漏，并可在太阳光下将捕获到的水以水蒸气的形式释放出来，实现大气水的持续循环吸水/解吸，提高大气水收集装置的使用寿命。
Atmospheric water collection nanofiber membrane with sandwich structure and preparation method thereof
一种三明治结构的大气集水纳米纤维膜及其制备方法
FU SHAOHAI (Autor:in) / LIU XIAOJIE (Autor:in) / ZHANG DIANDIAN (Autor:in) / YU ZHIHUA (Autor:in) / ZHOU ZHIJUAN (Autor:in) / LEE SUNG-JIN (Autor:in)
08.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
D01D
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
,
Mechanische Verfahren oder Vorrichtungen für die Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
/
D01F
Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
,
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
/
D04H
Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material
,
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
/
D06M
Behandeln von Fasern, Fäden, Garnen, Textilgut, Federn oder aus solchen Materialien hergestelltem Fasergut, soweit nicht anderweitig in Klasse D06 vorgesehen
,
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
/
E03B
Anlagen oder Verfahren zum Gewinnen, Sammeln oder Verteilen von Wasser
,
INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
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