Microchannel plastic film perfusion method and a microchannel plastic film perfusion machine

Abstract

The invention discloses a microchannel plastic film injection method and a microchannel plastic film injection machine. According to the microchannel plastic film injection method, the pressure difference technology formed by combining high pressure and vacuum is adopted, one end of a microchannel plastic film is arranged in liquid to be injected in a high pressure container, the other end of the microchannel plastic film is arranged in an empty cup of a vacuum container, under the combined pressure difference of the high pressure and the vacuum, and totally-enclosed injection of the microchannel plastic film is achieved. An injection process comprises four main procedures of high pressure end preparation, vacuum end preparation, high pressure injection and vacuum injection. The microchannel plastic film injection machine comprises a rack, a vacuum container cavity, a vacuum container sealing door, a vacuum container sealing piece, a connecting frame, a high pressure container cavity, a high pressure container sealing door and a high pressure container sealing piece. According to the microchannel plastic film injection method and the microchannel plastic film injection machine, the liquid is sealed in the high pressure container and the vacuum container and cannot be volatilized in the atmosphere, therefore, even if toxic and harmful liquid is injected, the pollution to the atmosphere cannot be caused, and environmental friendly injection is achieved.

Description

Technical field [0001] The invention relates to a microchannel plastic film perfusion method and a microchannel plastic film perfusion machine, belonging to the field of liquid microfilling, in particular to easy liquid perfusion of multiple microchannels. Background technique [0002] Microchannel plastic film is a new type of plastic film containing parallel hollow microchannels. The diameter of the microchannels is micron (10μm~500μm). For many years, the research group of Professor Xu Zhongbin of Zhejiang University has tracked the cutting-edge technology of international research, and has successfully developed a plastic film product with 19 microchannels within one centimeter width in cooperation with Huatai Plastic Co., Ltd. Microchannel plastic film has many advantages, such as not easy to be bent and closed, small footprint, high pressure bearing capacity, and good heat transfer performance. Therefore, it can be used in anti-counterfeiting packaging, perfume storage, mi...

AI Technical Summary

Problems solved by technology

In theory, the pressure can be greatly increased, but it is difficult to achieve in practice. The reason is that as the pressure difference increases, that is, the pressure of the high-pressure vessel increases, the seal between the micro-channel plastic film and the high-pressure vessel will leak. The maximum pressure difference that can be achieved is limited, that is, it is difficult to increase the perfusion productivity indefinitely

According to calculations, although the productivity of high-pressure infusion has improved compared with vacuum infusion, the increase is not large, mainly due to the limitation of sealing problems.

Environmental pollution problems caused by liquid volatilization also exist during high-pressure perfusion

[0008] Aiming at the problems of difficult liquid perfusion of micro-channel plastic film, low production efficiency, high cost of follow-up products, and environmental pollution, it is necessary to invent a new micro-channel plastic film perfusion method and perfusion machine

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