Membrane thickness measuring device for nanofiber membrane

Abstract

The invention discloses a membrane thickness measuring device for a nanofiber membrane, and relates to a nanofiber membrane. The membrane thickness measuring device is provided with an air pressure pump, an air filter, a fixed-value pressure reducing valve, a throttling valve, a pneumatic switch valve, an air cylinder, a pressure sensor, a support net, a sealing ring, a movement mechanism and a data acquiring and processing system, wherein the air pressure pump is used for supplying an air source, and is connected with the air filter through an air guide tube; the fixed-value pressure reducing valve, the throttling valve and the pneumatic switch valve are connected in sequence between the air filer and the air cylinder through the air guide tube; the nanofiber membrane which is produced on line is arranged between the bottom of the air cylinder and a working platform of the movement mechanism; the pressure sensor is connected with a threaded hole in the lower end of the cylinder body of the air cylinder; a through hole is formed in the working platform over against the lower part of the air cylinder; the support net is laid above the through hole; the output end of the pressure sensor is connected with the input end of the data acquiring and processing system; the pressure sensor is arranged at the bottom of the air cylinder. The device adopts a simple principle, is easy to implement, and can be used for rapidly detecting the membrane thickness of a certain part of the nanofiber membrane within few seconds.

Description

technical field [0001] The invention relates to a nanofiber membrane, in particular to a nanofiber membrane thickness measuring device for online detection of the thickness uniformity of the electrospun nanofiber membrane. Background technique [0002] With its superior mechanical, optical and electrical properties, nanofibers are widely used in many fields such as filtration, noise reduction, sensors, protective clothing, drug release, biological scaffolds, flexible electronics and new energy. The key to its industrial application is to realize Batch manufacturing of nanofibers. At present, batch electrospinning technologies that can produce nanofibers on a large scale mainly include drum electrospinning and centrifugal electrospinning. Among them, Czech researchers have developed a "nano spider" device using drum electrospinning technology and successfully commercialized it. The thickness uniformity of the electrospun nanofiber membrane is an important index of the nanofi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an online nanofiber film thickness measurement device for the problems of difficulty in online judgment of thickness and uniformity in the production of existing nanofiber films

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