Compound electret membrane, preparation method thereof and use thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING ZHONGYING MOBILE TECH SERVICE
- Publication Date
- 2009-10-21
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a composite electret film and its preparation method and application, belonging to the field of medical equipment. Background technique
[0002] Electrets are a class of functional dielectric materials that can store space charges and dipole charges for a long time. Using the external field effect and microcurrent effect of electret can effectively regulate the biological electret state and the whole process of metabolism, and play a role in the electrolysis regulation of organism tissue cells, the conduction induction of nerve signals and the repair of tissue electret state , so as to achieve the purpose of treating diseases.
[0003] Electret materials such as PTFE (polytetrafluoroethylene), FEP (polyfluoroethylene propylene copolymer) have excellent static charge ability and biocompatibility, and have functions such as antibacterial ability and adjustable electret state of biological tissues. It has become a research hotsp...