Intelligent magnetic drive self-repairing flexible pressure sensor and preparation method therefor
A pressure-sensitive sensor, self-healing technology, applied in the field of smart sensors, to achieve the effects of superior magnetic properties, excellent formability, and excellent self-healing properties
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Embodiment 1
[0039] The invention provides an intelligent magnetically driven self-repairing flexible pressure sensitive sensor and a preparation method thereof, comprising the following steps:
[0040] 1) Preparation of one-dimensional silver nanowire material
[0041]a) Ethylene glycol pretreatment: Add 50 mL of ethylene glycol into a three-necked flask and fully heat at 150°C for 10 minutes;
[0042] b) Add 1 mL of NaCl aqueous solution into the solution of a) and heat for 10 minutes; the concentration of NaCl aqueous solution is 0.002mol / L;
[0043] c) Dissolve 10 g of silver nitrate in ethylene glycol to form a 0.3 mol / L silver nitrate solution; dissolve 15 g of polyvinylpyrrolidone (PVP) in ethylene glycol to form a 0.4 mol / L PVP solution; Take 10 mL of silver nitrate solution and add it to the mixed solution b), and at the same time, take 30 mL of PVP solution and drop it slowly through the peristaltic pump, and the time is controlled within 50 minutes;
[0044] d) After the dropw...
Embodiment 2
[0061] The invention provides an intelligent magnetically driven self-repairing flexible pressure sensitive sensor and a preparation method thereof, comprising the following steps:
[0062] 1) Preparation of one-dimensional silver nanowire material
[0063] a) Ethylene glycol pretreatment: Add 65 mL of ethylene glycol into a three-necked flask and fully heat at 155°C for 15 minutes;
[0064] b) Add 1.5 mL of NaCl aqueous solution into the solution of a) and heat for 10 minutes; the concentration of NaCl aqueous solution is 0.0025mol / L;
[0065] c) Dissolve 15 g of silver nitrate in ethylene glycol to form a 0.35 mol / L silver nitrate solution; dissolve 12 g of polyvinylpyrrolidone (PVP) in ethylene glycol to form a 0.45 mol / L PVP solution; Take 12 mL of silver nitrate solution and add it to the mixed solution b), and at the same time, take 34 mL of PVP solution and drop it slowly through the peristaltic pump, and the time is controlled within 60 minutes;
[0066] d) After the...
Embodiment 3
[0083] The invention provides an intelligent magnetically driven self-repairing flexible pressure sensitive sensor and a preparation method thereof, comprising the following steps:
[0084] 1) Preparation of one-dimensional silver nanowire material
[0085] a) Ethylene glycol pretreatment: Add 70 mL of ethylene glycol into a three-necked flask and fully heat at 160°C for 20 minutes;
[0086] b) Add 2 mL of NaCl aqueous solution into the solution of a) and heat for 12 minutes; the concentration of NaCl aqueous solution is 0.003mol / L;
[0087] c) Dissolve 8 g of silver nitrate in ethylene glycol to form a 0.4 mol / L silver nitrate solution; dissolve 18 g of polyvinylpyrrolidone (PVP) in ethylene glycol to form a 0.5 mol / L PVP solution; Add 15 mL of silver nitrate solution to the mixed solution b), and at the same time, slowly drop in 35 mL of PVP solution through a peristaltic pump, and the time is controlled within 70 minutes;
[0088] d) After the dropwise addition, the above...
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