Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 6. Отображено 6.
06-12-2018 дата публикации

METHOD FOR DIRECTLY GROWING ULTRATHIN POROUS GRAPHENE SEPARATION MEMBRANE

Номер: WO2018218644A1
Автор: QUAN, Xie, WEI, Gaoliang, CHEN, Shuo, YU, Hongtao
Принадлежит:

A method for directly growing an ultrathin porous graphene separation membrane. The method comprises: (1) coating, on a metal foil, an etching agent, an organic solvent, and a high-molecular polymer, performing calcination at a high temperature under an oxygen-free condition, and removing the metal substrate and reaction products, so as to obtain a single-layer or multi-layer porous graphene separation membrane; or (2) coating a solution of an etching agent or a dispersion solution on a metal foil, then covering a layer of organic high-molecular polymer thin film, performing calcination at a high temperature under an oxygen-free condition, and removing the metal substrate and reaction products, so as to obtain a single-layer or multi-layer porous graphene separation membrane. According to the method, a porous graphene separation membrane can be grown directly, without the need to prepare graphene raw materials in advance, and the pore size of the prepared graphene membrane is adjustable ...

Подробнее
Номер записи: 1
11-09-2015 дата публикации

METHOD FOR PREPARING CARBON NANOTUBE HOLLOW FIBER MEMBRANE ON LARGE SCALE

Номер: WO2015131436A1
Автор: QUAN, Xie, WEI, Gaoliang, CHEN, Shuo, YU, Hongtao
Принадлежит:

The present invention relates to the technical field of membranes. Disclosed is a method for preparing a carbon nanotube hollow fiber membrane on a large scale. The method comprises: putting carbon nanotubes into a solution mixture of concentrated nitric acid and concentrated sulfuric acid, maintaining the temperature at 40-80°C for 0.5-6 h, taking the carbon nanotubes out; dispersing the acidified carbon nanotubes and polyvinyl butyral into an organic solvent to prepare a membrane casting solution; feeding the membrane casting solution and water simultaneously through a spinning head of a spinning machine with the membrane casting solution being used as a shell liquid and the water being used as a core liquid, spinning into a water coagulating bath in a manner that the ratio of the shell liquid flow rate to the core liquid flow rate is 0.5-5:1, the carbon nanotubes, the polyvinyl butyral and the organic solvent being in a weight ratio of 1:0.2-1:4-8; and performing calcination under oxygen-free ...

Подробнее
Номер записи: 2
07-04-2023 дата публикации

Flexible carbon nanotube conductive hollow fiber membrane and large-scale preparation method thereof

Номер: CN115920666A
Автор: JEON SEOB, ZHANG YONGKE, CHEN SHUO, WEI GAOLIANG, DU LEI
Принадлежит:

The invention discloses a flexible carbon nanotube conductive hollow fiber membrane and a large-scale preparation method thereof. The large-scale preparation method of the flexible carbon nanotube conductive hollow fiber membrane comprises the following steps: firstly, ultrasonically stirring and dispersing polyvinylpyrrolidone, carbon nanotubes, polyvinyl butyral and a silane coupling agent into an organic solvent according to a certain mass ratio, and standing and defoaming to obtain a spinning solution; and extruding the spinning solution and water into a water coagulating bath through a spinning head according to a certain flow ratio to obtain the carbon nanotube hollow fiber membrane. The preparation method is safe, simple and efficient, and does not need expensive chemical reagents and equipment.

Подробнее
Номер записи: 3
11-08-2023 дата публикации

Preparation method of conductive carbon nanotube-polyvinylidene fluoride composite hollow fiber membrane and electrochemical coupling membrane separation assembly

Номер: CN116571101A
Автор: JEON SEOB, DU LEI, WEI GAOLIANG, CHEN SHUO
Принадлежит:

The invention discloses a preparation method of a conductive carbon nanotube-polyvinylidene fluoride composite hollow fiber membrane and an electrochemical coupling membrane separation assembly, and belongs to the technical field of separation membrane preparation. The preparation method comprises the following steps: using a carbon nanotube as a conductive filler, enhancing the dispersibility of the carbon nanotube in polyvinylidene fluoride by using a dispersant, preparing a composite hollow fiber membrane through a wet spinning process, and carrying out conductive packaging and connection on the hollow fiber membrane to construct an electrochemical coupling membrane separation assembly capable of realizing combination of an electrochemical effect and a membrane separation function. The anti-pollution capacity of the separation membrane is enhanced, and the contradiction between permeability and selectivity is relieved. The hollow fiber membrane provided by the invention is simple in ...

Подробнее
Номер записи: 4
12-05-2023 дата публикации

Phase change heat storage type multistage heat recovery fresh air handling unit and operation method

Номер: CN116105348A
Автор: PAN MINGZHONG, HUANG WEI, ZHANG QI, JIANG CHUANBO, WEI GAOLIANG
Принадлежит:

The invention discloses a phase change heat storage type multi-stage heat recovery fresh air handling unit and method. The phase change heat storage type multi-stage heat recovery fresh air handling unit comprises an air inlet section, a pre-cooling coil pipe section, a preheating coil pipe section, a solution dehumidification section, a re-cooling coil pipe section, a re-heating coil pipe section, an air feeder section and a heat recovery box which communicate in sequence. A preheating coil pipe of the preheating coil pipe section is connected with one end of a heat recovery coil pipe of the heat recovery box through a pipeline to form a circulation loop, and a circulation water pump I is arranged on a circulation pipeline of the heat recovery box. Under the summer working condition, the part of heat is used for regeneration of a dehumidification solution, so that the cooling capacity needed after traditional deep freezing dehumidification is reduced, and meanwhile, the reheat needed by ...

Подробнее
Номер записи: 5
23-06-2023 дата публикации

Self-supporting MXene hollow fiber membrane as well as preparation method and application thereof

Номер: CN116272419A
Автор: CHEN SHUO, YUAN CHENGYU, ZHANG QI, WEI GAOLIANG, JEON SEOB
Принадлежит:

The invention relates to a self-supporting MXene hollow fiber membrane as well as a preparation method and application thereof. A single fiber of the hollow fiber membrane is composed of an internal supporting layer and an external functional layer, the supporting layer is a three-dimensional structure supporting layer formed by MXene, and the functional layer is an MXene layer; the inner aperture of the single fiber is 350 to 450 [mu] m; the outer aperture is 550 to 650 [mu] m; the sum of the thicknesses of the supporting layer and the functional layer is the difference between the outer aperture and the inner aperture of a single fiber; and the thickness of the functional layer is 70-150 nm. MXene and a high polymer are mixed, the mixture is spun into a film through a dry-wet method, high-temperature treatment is carried out in a nitrogen or argon atmosphere, on one hand, the high polymer is decomposed through the high temperature, on the other hand, hydroxyl (-OH) on the surface of MXene ...

Подробнее
Номер записи: 6