电子皮肤具有和人体皮肤相似的功能,可以对机械、温度、化学、生物和光学等刺激做出应激反应。聚偏氟乙烯(PVDF)薄膜不仅具有压电性、热电性和铁电性,而且还具有生物兼容性、柔韧性、高稳定性和抗腐蚀性,是制作电子皮肤的最佳材料。本研究以仿生学为基础,以厚度20μm(与人体皮肤的厚度近似)的PVDF薄膜作为电子皮肤的智能敏感元件,设计了具有压电性能和热电性能的新型电子皮肤。利用ANSYS软件建立仿真模型,验证了电子皮肤的热电性和压电性,确定了电子皮肤的最佳内径为4mm,正常的工作温度在0～80℃。
Electronic skin has the same function as human skin,which can response to mechanical,temperature,chemical,biological and optical stimuli and so on.A polyvinylidene fluoride(PVDF) film as a smart sensitive element for bionic skin with the thickness of 20μm (approximately the thickness of human skin) was presented.PVDF was not only piezoelectric,thermoelectric and ferroelectricity,but also had biocompatibility,flexibility,high stability and corrosion resistance.So it was one of the best materials for making bionic skin.Based on bionics,a novel electronic skin with piezoelectric and thermoelectric properties was designed.Using ANSYS software to establish the simulation model to determine the best internal high of electronic skin was 4mm.The thermoelectricity and piezoelectricity of electronic skin were verified by ANSYS,and the temperature range for the normal operation of electronic skin was determined to be 0～80℃.The beneficial scientific support for the development of bionic skin in the field of medicine and intelligent robot was provided.
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基金资助
国家自然科学基金青年科学基金项目(51303062)—准1-3型陶瓷-PVDF复合纳米纤维有序阵列的制备及压电性能研究;山西省青年科技研究基金(201701D221104)—基于多功能传感器的单臂机器人智能控制技术研究;山西省重点研发计划项目(201703D121002)—智能抓取在机器人柔性生产线中的研究与应用;山西省软科学研究一般项目(2017041014-2)—工匠精神引领高职创新人才培养的探索与研究
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