Nuclear pore membrane ultraviolet light sensitization device and method

Abstract

The invention relates to a nuclear pore membrane batch sensitization device. This device is mainly used for batch sensitization treatment of nuclear pore membranes, and its main application fields include nuclear pore membrane product processing, nuclear pore membrane preparation, etc. A nuclear pore membrane ultraviolet light sensitization device, its main feature is to include an unwinder, an ultraviolet sensitizer and a winder; The sensitizing roller and the winding roller on the winding machine pass through the unwinding machine, the ultraviolet sensitizing machine and the winding machine in sequence; The bracket is equipped with an ultraviolet LED surface light source and heat-insulating glass, and a cooling water tank is provided under the heat-insulating glass. connect. The device has the advantages of low working temperature, short sensitization time, high production efficiency, long service life, etc., and can carry out ultraviolet light sensitization treatment of nuclear pore membranes in batches.

Description

technical field [0001] The invention relates to a nuclear pore membrane batch sensitization device. This device is mainly used for batch sensitization treatment of nuclear pore membranes, and its main application fields include nuclear pore membrane product processing, nuclear pore membrane preparation, etc. Background technique [0002] Nuclear pore membrane, also known as nuclear microporous membrane or heavy ion microporous membrane, is formed by punching holes in the insulating material film with heavy ions and then chemically etching to expand the pores. The etching process is mainly to immerse the irradiated membrane material in an alkaline etching liquid. Alkaline liquid generally adopts 2-8 mol / liter sodium hydroxide solution, and the etching temperature is generally 50-80°C. [0003] The ideal channel shape of the nuclear pore membrane product is cylindrical, and the actual nuclear pore membrane product is biconical. The nuclear pore membrane has large surface po...

AI Technical Summary

Problems solved by technology

This kind of pore taper mainly has two effects: (1) The performance of nuclear pore membrane products with large pore size deteriorates: the smaller inner pores cause the gas or liquid flux of the nuclear pore membrane to decrease, which makes the performance of the nuclear pore membrane worse

(2) Nuclear pore membranes with small pore sizes cannot be produced

The disadvantage of this method is that it takes a long time, cannot be continuously sensitized, and the production efficiency is not high

[0005] UV light sensitization on the market usually uses a UV curing machine, but this kind of UV curing machine cannot be used to sensitize the nuclear pore membrane

First, this kind of UV curing machine is suitable for parts samples, which are placed on the conveyor belt for irradiation, and are not suitable for the installation of nuclear pore membranes.

Second, if the curing machine on the market is used, if the power of the lamp is too low, it will take several hours for sensitization;

If the power of the lamp is too high, it is likely to generate a lot of heat, which will cause the surface of the nuclear pore membrane to be deformed by heat, and the pores will be annealed and cannot be etched.

Third, the nuclear pore membrane needs to be sensitized on both sides, and the curing machine can usually only sensitize one side, and the sensitization on one side will cause a difference in the pore size of the upper and lower surfaces

Therefore, none of the UV curing equipment on the market can meet the requirements.

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