导电聚丙烯板材的压电和声学特性研究

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图分类号：TQ325.1 文献标识码：A 文章编号：1004-8901（2025）02-0014-04

Research on the Piezoelectric and Acoustic Characteristics of Conductive Polypropylene Plates

LI Fei-yun，JU Xin-yi，LIU Fang-jun，YOU Feng，YAO Jun-long，YAO Chu，JIANG Xue-liang （WuhanInstituteof Technology，WuhanHubei 4302O5，China）

AbstractAfinitelemntmodelofteacousicstructurecouplingsysteofodutiepolypropeneplatesistablisedtstdteiflu enceoftetypndizeofpiezetrimateralsndtevolumetricatiofpezoeletricmateralstoonductiematrixonteezelectric efectTheresultsshowthatwhenasinglevarableangedandtheotherparametersremainuchanged，thepotentialgeneratedyleadir conate titanate（PZT-5H）at 4000Hz is 30.10μV higher than that of barium titanate （BaTiO3 ）.In addition，when the size of the piezoelectric particlesis3m，theotetialgneratedyheittrctureistegestWhentevolumetricatiofpiezelectricartiestooductie matrix is1：10，the average potential is 85.84μV higher than when the ratio is g：10 ，and the piezoelectric effect of the unit structure is effectivelyenancdhesiulatioesultsprovidefvoableteoreicalsisfomprovingteeonversioeficecfoductieol propylene materials and promoting the application of piezoelectric materials in the field of noise control.

Keywords：piezoelectric effect；finite element；acoustic-structure coupling doi：10.3969/j.issn.1004-8901.2025.02.003

噪声污染，特别是低频噪声日益严重，传统多孔材料在低频吸声效果较差，亟需开发新型低频吸声材料以应对复杂环境中的噪声问题[1]。（剩余5501字）