用于智能包装及物流监控的PVDF压电薄膜传感器研究  

Research on PVDF Piezoelectric Thin Film Sensors for Smart Packaging and Logistics Monitoring

作　　者：魏昌洲[1] 唐霞 张韬 张一帆 WEI Changzhou;TANG Xia;ZHANG Tao;ZHANG YiFan(School of Mechanical Technology,Wuxi Institute of Technology,Wuxi Jiangsu 214121,China)

机构地区：[1]无锡职业技术学院机械技术学院,江苏无锡214121

出　　处：《传感技术学报》2024年第11期1856-1863,共8页Chinese Journal of Sensors and Actuators

基　　金：江苏自然科学基金项目(BK20201142);国家自然科学基金项目(51605280);江苏省高等教育教改研究立项课题项目(2021JSJG464);江苏省产学研合作项目(BY2019043)。

摘　　要：在物联网+时代,物流运输监管需要包装智能化。智能包装能够记录运输过程中的物流信息,并提供给用户及监管部门。结合现有包装生产技术,研制一种低成本、一次性使用、可量产的柔性压电传感器十分必要。用PVDF压电墨水,通过涂布的方法在柔性基底上制备了高性能压电薄膜。实验证明,不同溶剂对PVDF薄膜的结晶度及晶相形成有较大影响。晶相优化后的压电薄膜经过进一步电晕极化,其压电性能提高了一倍。用极化后的压电薄膜制备的压电传感器具有良好的柔性/共型性、优异的耐弯曲性和鲁棒性。其循环冲击测试结果证明压电传感器具有可重复和持久使用性。这一PVDF柔性压电薄膜传感器可直接印刷在包装箱体或包装膜上,用于智能物流监测。In the IOT+era,intelligent packaging is high demanded by consumers and the logistic agencies for transportation safety,security,tracing ability and big data management.For integrating with the existed packaging manufacturing and realizing low cost,one time use and high-volume manufacturing,the flexible piezoelectrical sensors are the solution providers.PVDF ink is used to coat the piezoelectric thin film for sensors.Experimental results show that the PVDF lattice structures are high depended on the solvent used for ink formation.In addition,the high voltage corona treatment could re-align the molecules for more phase formation to encourage piezo effects.The optimized PVDF piezoelectric sensors exhibit high piezoelectricity,flexibility,robustness,and repeatable performances.This flexible piezo sensor can be direct printed on the packages for tracking and security applications.

关 键 词：柔性压电传感器 PVDF墨水 涂布印刷 智能包装 

分 类 号：TB41[一般工业技术] TQ342[化学工程—化纤工业]