Abstract
Abstract The thermally stimulated discharge (TSD) spectra of three types of rat skin treated and untreated by negative polypropylene (PP) electret were measured. The natural rat skin shows an excellent electret effect due to the lamellar lipid structure, reticular structure of collagen and protein space structure related hydrogen bond network and non-covalent bond system. Hydration intensifies the skin electret effect. Electret could change the lamellar lipid structure and charge state of skin surface by alteration of dipolar orientation, intermolecular non-covalent action and protein transformation from α helix to β sheet. The regulation of skin electret effect depends on tightly bound water.
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