Nuclear track membrane online haze feedback production method

Abstract

The invention discloses an on-line haze feedback production method for a nuclear track membrane. The method comprises the following steps: controlling the advancing speed of a membrane material through a winding and unwinding device; etching the membrane material through an etching device to obtain a nuclear track membrane; cleaning the etching liquid on the nuclear track membrane through a cleaning device; drying the cleaned nuclear track membrane through a drying device; detecting the nuclear track membrane through haze detection equipment to obtain a real-time haze detection result and a real-time light transmittance detection result; and according to the real-time haze detection result and the real-time light transmittance detection result, operating parameters of the winding and unwinding device and the etching device are adjusted in real time. The method can achieve the real-time detection of the thickness and pores of the nuclear track membrane on a production line through haze and light transmittance detection, facilitates the automatic feedback production, is simple in detection method, and is high in detection speed. Equipment cost can be greatly saved, production efficiency is improved, and production waste is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear pore membrane production, in particular to a nuclear pore membrane online haze feedback production method. BACKGROUND

[0002] In the production of nuclear pore membranes, the production of nuclear pore membranes is completed by etching the film material. Whether the produced nuclear pore membrane is qualified is generally judged by two indexes, one is the thickness of the nuclear pore membrane obtained after etching, and the other is the pore parameter of the nuclear pore membrane obtained after etching. The thickness of the nuclear pore membrane affects the strength effect of the nuclear pore membrane, and the pore parameter of the nuclear pore membrane affects the filtering and flux effects of the nuclear pore membrane.

[0003] The existing technology generally detects the pore parameter of the nuclear pore membrane product by microscopic observation and image detection, and detects the thickness information of the nuclear pore membrane by a laser thickness gauge. For example, the prior art CN113050564A discloses a nuclear pore membrane etching line self-feedback linkage production control device, which specifically discloses a method of detecting the thickness information of the nuclear pore membrane by a laser thickness gauge and feeding back to the production line to control the passing speed and etching parameters of the nuclear pore membrane during etching, and controlling the production quality of the nuclear pore membrane.

[0004] However, in this method, the detection of the thickness information and the pore parameter of the nuclear pore membrane is carried out separately. Although the detection of the thickness information of the nuclear pore membrane can be carried out in real time and feedback, the pore parameter of the nuclear pore membrane product cannot be detected in real time on the production line because it is detected by microscopic observation and image detection. The production quality of the nuclear pore membrane cannot be known in real time, and the self-feedback automatic production problem of the nuclear pore membrane cannot be completely solved. SUMMARY

[0005] The present application provides a nuclear pore membrane online haze feedback production method to solve the problem that the production quality of the nuclear pore membrane cannot be known in real time in the prior art, and the self-feedback automatic production problem of the nuclear pore membrane cannot be completely solved.

[0006] In one aspect, the present application provides a nuclear pore membrane online haze feedback production method, comprising:

[0007] controlling the film material running speed by a winding and unwinding device;

[0008] etching the film material by an etching device to obtain a nuclear pore membrane;

[0009] cleaning the etching liquid on the nuclear pore membrane by a cleaning device;

[0010] drying the cleaned nuclear pore membrane by a drying device;

[0011] detecting the nuclear pore membrane by a haze detection device to obtain real-time haze detection results and real-time light transmittance detection results;

[0012] adjusting operation parameters of the unwinding and winding device and the etching device according to the real-time haze detection result and the real-time light transmittance detection result.

[0013] In a possible implementation, the unwinding and winding device comprises an unwinding end, a winding end and a turning shaft, the unwinding and winding device sends out the film material through the unwinding end, the unwinding and winding device winds up the nuclear pore membrane after etching, cleaning, drying and detection through the winding end, the unwinding and winding device is provided with a turning shaft on the etching device, the cleaning device and the drying device, and the turning shaft is used to control the film material to change the running direction on the production line.

[0014] In a possible implementation, the etching device comprises an etching tank, an etching liquid injection device, an etching liquid dilution device and a temperature control device, the etching tank is used to hold and discharge the etching liquid, the etching liquid injection device is used to add new etching liquid into the etching tank, the etching liquid dilution device is used to add distilled water into the etching tank to dilute the concentration of the etching liquid, and the temperature control device is used to control and display the temperature of the etching liquid in the etching tank in real time.

[0015] In a possible implementation, the real-time haze detection result is the haze value of the nuclear pore membrane detected by the haze detection device in real time when the nuclear pore membrane passes through.

[0016] In a possible implementation, the real-time light transmittance detection result is the light transmittance value of the nuclear pore membrane detected by the haze detection device in real time when the nuclear pore membrane passes through.

[0017] In a possible implementation, the haze value is used to reflect the finished product thickness qualification information of the nuclear pore membrane.

[0018] In a possible implementation, the light transmittance value is used to reflect the finished product pore qualification information of the nuclear pore membrane, and the finished product pore qualification information is information about whether the parameters of the pores and the inter-pore gaps of the nuclear pore membrane meet the standards.

[0019] In a possible implementation, the haze value is screened by a threshold method to reflect the finished product thickness qualification information of the nuclear pore membrane.

[0020] In a possible implementation, the light transmittance value is screened by a threshold method to reflect the finished product pore qualification information of the nuclear pore membrane.

[0021] In a possible implementation, the operation parameters of the unwinding and winding device and the etching device comprise the running speed of the unwinding and winding device and the concentration and temperature of the etching liquid in the etching device.

[0022] The nuclear pore membrane online haze feedback production method has the following advantages:

[0023] (1) The haze and light transmittance detection can achieve real-time detection of the thickness and pores of the nuclear pore membrane on the production line, and automatic feedback production is facilitated.

[0024] (2) The detection method is simple and fast, which can greatly save equipment cost, improve production efficiency, and reduce production waste. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0026] Figure 1 The flowchart of the nuclear pore membrane online haze feedback production method provided by the embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] Figure 1 The flowchart of the nuclear pore membrane online haze feedback production method provided by the embodiment of the present application; the embodiment of the present application provides a nuclear pore membrane online haze feedback production method, which comprises:

[0029] The film material advancing speed is controlled by the winding and unwinding device;

[0030] The film material is etched by the etching device to obtain a nuclear pore membrane;

[0031] The etching liquid on the nuclear pore membrane is cleaned by the cleaning device;

[0032] The cleaned nuclear pore membrane is dried by the drying device;

[0033] The nuclear pore membrane is detected by the haze detection equipment to obtain real-time haze detection results and real-time light transmittance detection results;

[0034] The operating parameters of the winding and unwinding device and the etching device are adjusted in real time according to the real-time haze detection results and real-time light transmittance detection results.

[0035] Exemplary, the unwinding and winding device controls the running speed of the film material on the production line, which affects the etching time of the film material in the etching device, the etching device controls the concentration and temperature of the etching liquid, and cooperates with the unwinding and winding device to control the variable parameters of the production of nuclear pore membrane etching, the etched film material is washed and dried by the washing device and the drying device, and the finished product nuclear pore membrane is made, then the haze value and the light transmittance are detected in real time through the haze detection equipment connected with the unwinding and winding device and the etching device, and then the detection results are screened in real time through the threshold method, wherein the change of the haze value is mainly related to the thickness of the nuclear pore membrane, and the change of the light transmittance is mainly related to the pore parameter of the nuclear pore membrane. When the thickness of the nuclear pore membrane is large, the haze value is high, but due to the direct light transmission of the pore, the light transmittance is not greatly affected. When the thickness of the nuclear pore membrane is unchanged and the pore parameter changes, the effect on the light transmittance is more obvious, and the effect on the haze value is not great. According to the detection data of qualified finished product nuclear pore membrane of various specifications, a threshold value is set, the real-time quality of the currently produced nuclear pore membrane can be judged through the threshold value and the real-time detection of the haze value and the light transmittance, and then the speed of the unwinding and winding device and the concentration and temperature of the etching liquid in the etching device are dynamically adjusted according to the parameter. Improve the yield rate and production efficiency of the nuclear pore membrane.

[0036] In a possible embodiment, the unwinding and winding device includes an unwinding end, a winding end and a turning shaft, the unwinding and winding device sends out the film material through the unwinding end, the unwinding and winding device winds up the nuclear pore membrane after etching, cleaning, drying and detection through the winding end, and the unwinding and winding device is provided with a turning shaft on the etching device, the washing device and the drying device, and the turning shaft is used to control the running direction of the film material on the production line.

[0037] Exemplary, the unwinding and winding device controls the running speed of the production line through the unwinding end and the winding end, and controls the film material to enter the etching device for etching first, then to the washing device for washing the residual etching liquid, and then to the drying equipment for drying the cleaning solution to become a finished product nuclear pore membrane.

[0038] In a possible embodiment, the etching device includes an etching tank, an etching liquid injection device, an etching liquid dilution device and a temperature control device, the etching tank is used to hold the etching liquid and discharge the etching liquid, the etching liquid injection device is used to add new etching liquid to the etching tank, the etching liquid dilution device is used to add distilled water to the etching tank to dilute the concentration of the etching liquid, and the temperature control device is used to control and display the temperature of the etching liquid in the etching tank in real time.

[0039] In an example, the etching tank is a container of etching solution, the etching tank can accommodate various sizes of membrane materials to enter the etching solution through a turning shaft and then to turn out of the etching solution through the turning shaft, the etching solution injection device, the etching solution dilution device and the temperature control device are arranged on the etching tank, the etching solution injection device and the etching solution dilution device are adjusted in real time according to the production parameters and the detection parameters of the haze detection device, so as to control the concentration of the etching solution in the etching tank. The temperature control device adjusts and controls the temperature of the etching solution in the etching tank in real time according to the production parameters and the detection parameters of the haze detection device and displays the temperature value.

[0040] In a possible embodiment, the real-time haze detection result is the haze value of the nuclear pore membrane detected by the haze detection device in real time when the nuclear pore membrane passes through, and the real-time light transmittance detection result is the light transmittance value of the nuclear pore membrane detected by the haze detection device in real time when the nuclear pore membrane passes through.

[0041] In a possible embodiment, the haze value is used to reflect the finished product thickness qualification information of the nuclear pore membrane, and the light transmittance value is used to reflect the finished product pore qualification information of the nuclear pore membrane. The finished product pore qualification information is information about whether the parameters of the pores and the pore gaps of the nuclear pore membrane meet the standards.

[0042] In an example, the pore number information of the finished product pore qualification information of the nuclear pore membrane is reflected by the light transmittance value, and the pore distribution information of the finished product pore qualification information of the nuclear pore membrane is reflected by the distribution of the light transmittance value.

[0043] In a possible embodiment, the haze value is screened by a threshold method to reflect the finished product thickness qualification information of the nuclear pore membrane, and the light transmittance value is screened by a threshold method to reflect the finished product pore qualification information of the nuclear pore membrane.

[0044] Although the preferred embodiments of the present application have been described, those skilled in the art who have the benefit of the basic inventive concept can make further changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0045] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A haze feedback production method for nuclear pore membrane lines, characterized in that, include: The speed of the membrane material is controlled by the unwinding and rewinding device; The membrane material is etched using an etching device to obtain a nuclear pore membrane; The etching solution on the nuclear pore membrane is cleaned using a cleaning device; The cleaned nuclear pore membrane is dried using a drying device; Real-time haze and real-time transmittance results are obtained by detecting the nuclear pore membrane using a haze detection device. The operating parameters of the winding and unwinding device and the etching device are adjusted in real time based on the real-time haze detection results and the real-time transmittance detection results.

2. The haze feedback production method on a nuclear pore membrane line according to claim 1, characterized in that, The unwinding and winding device includes an unwinding end, a winding end, and a steering shaft. The unwinding and winding device feeds out the membrane material through the unwinding end and takes up the nuclear pore membrane after etching, cleaning, drying, and testing through the winding end. The unwinding and winding device is equipped with a steering shaft on the etching device, cleaning device, and drying device. The steering shaft is used to control the membrane material to change its running direction on the production line.

3. The haze feedback production method on a nuclear pore membrane line according to claim 1, characterized in that, The etching apparatus includes an etching tank, an etching solution injection device, an etching solution dilution device, and a temperature control device. The etching tank is used to hold and release the etching solution. The etching solution injection device is used to add new etching solution to the etching tank. The etching solution dilution device is used to add distilled water to the etching tank to dilute the concentration of the etching solution. The temperature control device is used to control and display the temperature of the etching solution in the etching tank in real time.

4. The haze feedback production method on a nuclear pore membrane line according to claim 1, characterized in that, The real-time haze detection result is the haze value of the nuclear pore membrane detected in real time by the haze detection device as the nuclear pore membrane passes through.

5. The haze feedback production method on a nuclear pore membrane line according to claim 4, characterized in that, The real-time transmittance detection result is the transmittance value of the nuclear pore membrane detected in real time by the haze detection device as the nuclear pore membrane passes through.

6. The haze feedback production method on a nuclear pore membrane line according to claim 5, characterized in that, The haze value is used to reflect the finished thickness qualification information of the nuclear pore membrane.

7. The haze feedback production method on a nuclear pore membrane line according to claim 6, characterized in that, The transmittance value is used to reflect the finished product pore quality information of the nuclear pore membrane, which is the information on whether the parameters of the pores and pore gaps of the nuclear pore membrane meet the standards.

8. The haze feedback production method on a nuclear pore membrane line according to claim 7, characterized in that, The haze value is used to screen and reflect the finished thickness qualification information of the nuclear pore membrane through a threshold method.

9. The haze feedback production method on a nuclear pore membrane line according to claim 8, characterized in that, The transmittance value is used to screen and reflect the finished pore quality information of the nuclear pore membrane through a threshold method.

10. The haze feedback production method on a nuclear pore membrane line according to claim 9, characterized in that, The operating parameters of the winding and unwinding device and the etching device include the operating speed of the winding and unwinding device and the concentration and temperature of the etching solution in the etching device.

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