Wool keratin-based biologically compatible lead-free nanometer piezoelectric power generation apparatus and preparation method thereof
A wool keratin, piezoelectric power generation technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc. problems such as the use of electric power generation devices, to achieve the effect of reducing biological toxicity and stabilizing output electrical performance
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[0041] figure 2 Shows a flow chart of a preparation method of a wool keratin-based biocompatible lead-free nano-piezoelectric power generation device according to an embodiment of the present invention, as figure 2 Shown, this preparation method comprises the following steps:
[0042] Step 1, preparing wool keratin solution;
[0043] Step 2, preparing bismuth lanthanum iron titanate nanofibers by electrospinning;
[0044] Step 3, preparing wool keratin-bismuth lanthanum iron titanate piezoelectric composite layer;
[0045] Step 4, spin coating and installing the indium tin oxide electrode; spin coating the wool keratin-bismuth lanthanum iron titanate piezoelectric composite material on the lower indium tin oxide electrode plate at 600-700 rpm for 30-40 seconds;
[0046] Step 5, polyethylene terephthalate substrate; after the piezoelectric composite material is dried, attach the upper layer indium tin oxide electrode plate to the upper surface of the wool keratin-bismuth l...
Embodiment 1
[0061] Such as figure 1 Shown, the present invention provides a kind of bismuth lanthanum based on iron titanate Bi 4 LaTi 3 FeO 15 ) and biocompatible lead-free nanopiezoelectric generators from wool keratin. It includes a piezoelectric composite layer 1, an upper layer of indium tin oxide electrode 2u, a polyethylene terephthalate substrate 2u, a lower layer of indium tin oxide electrode 2d, a polyethylene terephthalate substrate 2d and an external circuit 4, specifically The preparation process is:
[0062] (1) Prepare wool keratin solution
[0063] Step 1, oxidation. Rinse and dry 5g of wool, then oxidize it in 6 wt% potassium monopersulfate complex aqueous solution at 30°C and 200 rpm, and add supersaturated sodium hydroxide solution until the pH of the solution reaches 3.5-5. The oxidized fibers were rinsed with deionized water and filtered four times until the pH of the solution reached 7.
[0064] Step 2, deoxidation. Mix the washed fibers with urea, sodium bis...
Embodiment 2
[0082] Such as figure 1 Shown, the present invention provides a kind of bismuth based on iron titanate Bi 5 Ti 3 FeO 15 and biocompatible lead-free nanopiezoelectric generators from wool keratin. It includes a piezoelectric composite layer 1, an upper layer of indium tin oxide electrode 2u, a polyethylene terephthalate substrate 2u, a lower layer of indium tin oxide electrode 2d, a polyethylene terephthalate substrate 2d and an external circuit 4, specifically The preparation process is:
[0083] (1) Prepare wool keratin solution
[0084] Step 1, oxidation. Rinse and dry 5g of wool, then oxidize it in 6 wt% potassium monopersulfate complex aqueous solution at 30°C and 200 rpm, and add supersaturated sodium hydroxide solution until the pH of the solution reaches 3.5-5. The oxidized fibers were rinsed with deionized water and filtered four times until the pH of the solution reached 7.
[0085] Step 2, deoxidation. Mix the washed fibers with urea, sodium bisulfite and sod...
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