A permeable membrane preparation device

Abstract

The invention provides a permeable membrane preparation device, which facilitates the preparation and transfer of the membrane, and keeps the membrane flat during the transfer process, thereby improving the accuracy of the membrane permeability test. The permeable membrane preparation device includes a tray and a film-forming plate. The tray has a first film-forming surface, and the film-forming plate has a second film-forming surface. When the tray and the film-forming plate are combined, the first film-forming surface and the second film-forming surface The surfaces jointly form the surface for forming the permeable membrane; when the tray is separated from the film-forming plate, the film-forming plate can drive the permeable membrane to separate from the tray. When the tray is combined with the film forming plate, the first film forming surface and the second film forming surface are located in the same horizontal plane.

Description

technical field

[0001] The invention relates to the field of membrane permeability testing, in particular to a permeable membrane preparation device. Background technique

[0002] The following background art is provided to help the reader understand the present invention and is not to be admitted as prior art.

[0003] Membrane permeability testing is used to detect the speed and extent of small molecule substances passing through the membrane. Conducting a membrane permeability test begins with the preparation of the permeable membrane and then mounting the permeable membrane on a diffusion cell. Usually, the polymer to be tested is dissolved in an organic solvent to form an organic solution, and then the organic solution is poured on a flat surface. After the organic solvent is volatilized, a permeable membrane is formed, and then the permeable membrane is cut into the desired shape and transferred. Mounted on diffusion cell. Due to the thin thickness of the permeable ...

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