Bacterial cellulose flexible composite piezoelectric film and preparation method thereof
A technology of bacterial cellulose, piezoelectric thin film, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, materials for piezoelectric devices or electrostrictive devices Selecting other directions can solve problems such as toxicity and increase the cost of material production.
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Embodiment 1
[0030] A preparation method of bacterial cellulose flexible composite piezoelectric film, said method comprising the following steps:
[0031] (1) Prepare a mixed aqueous solution containing zinc acetate and vanadium pentoxide, wherein the concentration of zinc acetate is 50 mM, and the concentration of vanadium pentoxide is 15 mM, and soak the bacterial cellulose wet film in it for 12 hours.
[0032] (2) Prepare an aqueous solution containing zinc acetate and vanadium pentoxide, then mix the aqueous solution containing zinc acetate and vanadium pentoxide with diethylene glycol at a volume ratio of 1:4 to obtain zinc acetate, vanadium pentoxide and diethylene glycol A mixed solution of glycol; in the mixed solution containing zinc acetate, vanadium pentoxide and diethylene glycol, the concentration of zinc acetate is controlled to be 10 mM, and the concentration of vanadium pentoxide is 1mM;
[0033] Immerse the bacterial cellulose soaked in step (1) into a mixed solution cont...
Embodiment 2
[0039] A preparation method of bacterial cellulose flexible composite piezoelectric film, said method comprising the following steps:
[0040](1) Prepare a mixed aqueous solution containing zinc acetate and vanadium pentoxide, wherein the concentration of zinc acetate is 40 mM, and the concentration of vanadium pentoxide is 10 mM, and soak the bacterial cellulose wet film in it for 24 hours.
[0041] (2) Prepare an aqueous solution containing zinc acetate and vanadium pentoxide, then mix the aqueous solution containing zinc acetate and vanadium pentoxide with diethylene glycol at a volume ratio of 1:3 to obtain zinc acetate, vanadium pentoxide and diethylene glycol A mixed solution of glycol; in the mixed solution containing zinc acetate, vanadium pentoxide and diethylene glycol, the concentration of zinc acetate is controlled to be 20mM, and the concentration of vanadium pentoxide is 2mM;
[0042] Immerse the bacterial cellulose soaked in step (1) into a mixed solution contai...
Embodiment 3
[0048] A preparation method of bacterial cellulose flexible composite piezoelectric film, said method comprising the following steps:
[0049] (1) Prepare a mixed aqueous solution containing zinc acetate and vanadium pentoxide, wherein the concentration of zinc acetate is 50 mM, and the concentration of vanadium pentoxide is 5 mM, and soak the bacterial cellulose wet film in it for 48 hours.
[0050] (2) Prepare an aqueous solution containing zinc acetate and vanadium pentoxide, then mix the aqueous solution containing zinc acetate and vanadium pentoxide with diethylene glycol at a volume ratio of 1:4 to obtain zinc acetate, vanadium pentoxide and diethylene glycol A mixed solution of glycol; in the mixed solution containing zinc acetate, vanadium pentoxide and diethylene glycol, the concentration of zinc acetate is controlled to be 10 mM, and the concentration of vanadium pentoxide is 1mM;
[0051] Immerse the bacterial cellulose soaked in step (1) into a mixed solution conta...
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