Lead-free piezoelectric ceramic fiber passive pressure thermoelectronic skin material and preparation method

Abstract

The application discloses a lead-free piezoelectric ceramic fiber passive pressure thermogenic electronic skin material and a preparation method thereof, and relates to the technical field of flexible electronics for medical treatment. The specific preparation method comprises the following steps: a chitosan solution A is prepared into a thermogenic-sensor film through a flow casting process; a chitosan solution B is coated on the upper surface of the thermogenic-sensor film, and a chitosan solution C is coated on the lower surface of the thermogenic-sensor film; drying, solidification and sterilization treatment are performed to obtain the electronic skin material; the material has high biocompatibility, and the conductivity is improved to 10 ‑3 S / cm, the piezoelectric coefficient d 33 = 35 pC / N, the thermogenic temperature is controlled within 38-42 DEG C with an error of ± 0.4 DEG C, the degradation period is simultaneously controlled to adapt to the wound healing period, the skin friendliness is good, and there is no irritation.

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