Parallel synthesizer and synthesis method for gas-sensitive film based on micro-droplet premixing and transfer-printing
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A synthesis device and gas-sensitive film technology, applied in printing devices, devices for coating liquid on the surface, printing, etc., can solve problems such as uneven mixing of components, achieve simple structure, solve uneven mixing of components, and achieve high precision high effect
Active Publication Date: 2017-03-29
HUAZHONG UNIV OF SCI & TECH
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[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a parallel synthesis device and preparation method of a gas-sensitive film based on droplet premixing and transfer printing. The film-forming principle and characteristics of the synthesis device, further research and design on the structural characteristics and synthesis process of the parallel synthesis device, combined with the array peristaltic pump, the array micro-droplet needle and the air-tight automatic micro-sampler, quantitative micro-droplet The pre-mixing method is used to precisely control the type and content of the components of the gas-sensing material, and the quantitative droplet pre-mixing method is used to realize the quantitative uniform mixing of different components of the gas-sensing material. Quantitative droplet transfer printing of gas-sensitive material premix, using image positioning camera and pre-positioned film to achieve precise positioning and shaping of gas-sensitive film, this device can quickly prepare a large number of gas-sensitive films with different components, and solve the problem of existing inkjet Solve the problem of uneven mixing of components in the printing parallel synthesis method, and at the same time avoid the problem of clogging during the printing process
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[0042] A method for parallel synthesis of gas-sensitive membranes based on droplet premixing and transfer printing provided by the present invention is characterized in that the method comprises the following steps:
[0043] (a) adopt the parallel synthesis device based on droplet premixing and transfer-printed gas-sensitive film described in claim 1, the communication interface 12 of this parallel synthesis device is connected with PC;
[0044] (b) first fix the substrate 8 of the pre-positioned film and the array premix chamber 6 on the corresponding positions on the stage;
[0045] (c) According to the set raw material composition, inject different types of gas-sensitive raw materials with different contents into the designated raw material bottles of the array raw material chamber 17;
[0046] (d) Establish a rectangular coordinate system with the guide rail of the three-dimensional sliding table 16 as the xyz direction, use the image positioning camera 3 to obtain the ori...
Embodiment
[0051] Synthesis of Pt-modified CuO and WO by a gas-sensitive membrane parallel synthesis device based on droplet premixing and transfer printing 3 The preparation method of the binary gas-sensitive membrane material, its specific process is as follows:
[0052] (a) Turn on the power switch 15, insert a USB data cable into the USB communication interface 12, connect the control module with the PC through the USB data cable, and realize the communication between the PC terminal and the control module.
[0053] (b) Fix the organic positioning film substrate and the array pre-mixing chamber respectively on the corresponding positions on the stage.
[0054] (c) H 2 PtCl 6 ·6H 2 O solution, CuO suspension and WO 3 Take 5mL of the suspension and inject it into bottles No. 1, 2, and 3 of the raw material chamber respectively.
[0055] (d) Run the control software on the PC, and make the origin coincide with the positioning point of the premix chamber through software correction....
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Abstract
The invention belongs to the technical field of synthesis of a gas-sensitive film and more particularly relates to a parallel synthesizer and a synthesis method for the gas-sensitive film based on micro-droplet premixing and transfer-printing. The parallel synthesizer for the gas-sensitive film comprises a limiting objective table, a control module, a three-dimensional sliding table, a micro-droplet premixing module and a micro-droplet transfer-printing module; the micro-droplet premixing module can realize premixing of gas-sensitive raw materials by combination of an array peristaltic pump and an array micro-droplet syringe needle; and the micro-droplet transfer-printing module can realize quantitative micro-dropping and precise positioning and shaping of the gas-sensitive film in a transfer-printing process by co-coordination of an airtight automatic micro-syringe, an image positioning camera and a substrate of a prefabricated positioning film. The invention also discloses a preparation method of the gas-sensitive film. The parallel synthesizer provided by the invention can realize quantitative and uniform mixing of gas-sensitive materials which are different in materials and components, can be used for precisely and rapidly preparing various types of gas-sensitive films, can also prevent the problem of blocking in a printing process, and is applicable to nL-level quantitative micro-droplet premixing and transfer-printing of a nanometer gas-sensitive raw material suspension of which the size is not larger than 1 micron.
Description
technical field [0001] The invention belongs to the technical field of gas-sensitive film synthesis, and more specifically, relates to a parallel synthesis device and synthesis method of a gas-sensitive film based on droplet premixing and transfer printing, which can accurately and quickly prepare various gas-sensitive films, and can simultaneously Avoid jamming problems during printing. Background technique [0002] In the prior art, the screening of gas-sensing membranes based on the method of "combinatorial materials science" can greatly improve the efficiency of optimizing high-performance gas-sensing membranes. "Combinatorial materials science" consists of two key processes: parallel synthesis and high-throughput characterization. Among them, parallel synthesis refers to the high-speed and simultaneous synthesis of a large number of materials with different components; high-throughput characterization refers to the simultaneous characterization of the properties of a l...
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