Solvent water detection element based on conductive macromolecular compound and manufacturing method thereof
A conductive polymer and solvent moisture technology, applied in the direction of material resistance, can solve the problems of unsuitable determination of moisture content, difficulty in popularization, high price, etc., to improve long-term stability and response reproducibility, easy measurement, water absorption Reduced effect
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Embodiment 1
[0029] 1) cleaning the surface photolithography and evaporating the ceramic substrate with interdigitated gold electrodes, and drying for later use;
[0030] 2) Prepare an aqueous solution of polystyrene sulfonic acid with a concentration of 0.15 g / ml, add aniline distilled under reduced pressure in an amount of 10 ml of aniline per liter of polystyrene sulfonic acid aqueous solution, and stir at 0°C for 1 hour , then dropwise add an aqueous solution with a concentration of 0.05 g / ml ammonium persulfate, the volume ratio of polystyrene sulfonic acid aqueous solution to ammonium persulfate aqueous solution is 2:1, after stirring and mixing, let it stand for at least 12 hours, precipitate with acetone, pump Filter, wash with acetone, and vacuum-dry at room temperature for 24 hours to obtain polyaniline nanoparticles;
[0031] 3) Under ultrasonic vibration, the polyaniline nanoparticles prepared in step 2) are formulated into an aqueous solution with a concentration of 20 mg / ml, ...
Embodiment 2
[0034] 1) cleaning the surface photolithography and evaporating the ceramic substrate with interdigitated gold electrodes, and drying for later use;
[0035]2) Prepare an aqueous solution of polystyrene sulfonic acid with a concentration of 0.05 g / ml, add aniline distilled under reduced pressure, and add 10 ml of aniline per liter of polystyrene sulfonic acid aqueous solution, and stir for 1 hour at 0°C , then dropwise add an aqueous solution with a concentration of 0.05 g / ml ammonium persulfate, the volume ratio of polystyrene sulfonic acid aqueous solution to ammonium persulfate aqueous solution is 2:1, after stirring and mixing, let it stand for at least 12 hours, precipitate with acetone, pump Filter, wash with acetone, and vacuum-dry at room temperature for 24 hours to obtain polyaniline nanoparticles;
[0036] 3) Under ultrasonic vibration, the polyaniline nanoparticles prepared in step 2) are formulated into an aqueous solution with a concentration of 50 mg / ml, and then...
Embodiment 3
[0039] 1) cleaning the surface photolithography and evaporating the ceramic substrate with interdigitated gold electrodes, and drying for later use;
[0040] 2) Prepare an aqueous solution of polystyrene sulfonic acid with a concentration of 0.20 g / ml, add aniline distilled under reduced pressure in an amount of 10 ml of aniline per liter of polystyrene sulfonic acid aqueous solution, and stir at 0°C for 1 hour , then dropwise add an aqueous solution with a concentration of 0.05 g / ml ammonium persulfate, the volume ratio of polystyrene sulfonic acid aqueous solution to ammonium persulfate aqueous solution is 2:1, after stirring and mixing, let it stand for at least 12 hours, precipitate with acetone, pump Filter, wash with acetone, and vacuum-dry at room temperature for 24 hours to obtain polyaniline nanoparticles;
[0041] 3) Under ultrasonic vibration, the polyaniline nanoparticles prepared in step 2) are formulated into an aqueous solution with a concentration of 5 mg / ml, a...
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Abstract
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