A kind of flexible thermocouple temperature sensor and preparation method thereof
A temperature sensor, thermocouple technology, applied in chemical instruments and methods, thermometers, thermometers with directly sensitive electrical/magnetic components, etc., can solve the problems of difficult temperature measurement and bending, and achieve temperature response speed Fast, easy to bend, small size effect
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Embodiment 1
[0031] (1) Weigh 50mg of Bi 2 Te 3 The powder and 10 mg of CNTs were dispersed in 50 mL of deionized water, mixed evenly, and then filtered under a pressure of 0.06 MPa to form a film. Continuously feed Ar gas at a rate of 3°C / min to 400°C, keep it warm for 2 hours, and then naturally cool to room temperature to obtain Bi 2 Te 3 / CNTs composite P-type film;
[0032] Take 25 mL of MXene dispersion with a concentration of 2 mg / mL and 10 mL of CNTs dispersion with a concentration of 1 mg / mL, mix them evenly, and filter them under a pressure of 0.06 MPa to form a film to obtain an N-type film.
[0033] (2) Select polyimide film as the flexible substrate, and assemble the flexible P-type film and N-type film on the two surfaces of the flexible substrate respectively; one end where the P-type film and N-type film are in contact is connected with conductive silver paste; Lead out a conductive silver wire, fix it with conductive silver paste, place it in a vacuum oven at 60°C for ...
Embodiment 2
[0036] (1) Weigh 60mg of Bi 2 Te 3 The powder and 20 mg of CNTs were dispersed in 60 mL of deionized water, mixed evenly, and then filtered under a pressure of 0.08 MPa to form a film. Continuously feed Ar at a rate of 4°C / min to 500°C, keep it warm for 2 hours, and then naturally cool to room temperature to obtain Bi 2 Te 3 / CNTs composite P-type film.
[0037] Take 15 mL of MXene dispersion with a concentration of 4 mg / mL and 20 mL of CNTs dispersion with a concentration of 1 mg / mL, mix them evenly, and filter them under a pressure of 0.08 MPa to form a film to obtain an N-type film.
[0038] (2) Select the polyimide film as the flexible substrate, assemble the P-type film and the N-type film on the two surfaces of the flexible substrate respectively, and connect one end of the flexible P-type film and the N-type film with conductive silver paste; Lead out a conductive silver wire, fix it with conductive silver paste, place it in a positive air oven at 70°C for 1 hour, a...
Embodiment 3
[0041] (1) Weigh 50mg of Bi 2 Te 3 The powder and 20 mg of CNTs were dispersed in 50 mL of deionized water, mixed evenly, and then filtered under a pressure of 0.1 MPa to form a film. Continuously feed Ar at a rate of 4°C / min to 500°C, keep it warm for 2 hours, and then naturally cool to room temperature to obtain Bi 2 Te 3 / CNTs composite P-type film.
[0042]Take 5 mL of MXene dispersion with a concentration of 8 mg / mL and 10 mL of CNTs dispersion with a concentration of 2 mg / mL, mix them evenly, and filter them under a pressure of 0.1 MPa to form a film to obtain an N-type film.
[0043] (2) Select the polyimide film as the flexible substrate, assemble the P-type film and the N-type film on the two surfaces of the flexible substrate respectively, and connect one end of the flexible P-type film and the N-type film with conductive silver paste; Lead out a conductive silver wire, fix it with conductive silver paste, place it in a vacuum oven at 80°C for 1 hour, and dry it....
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