摘要
将不同含量的经过邻苯二甲酸改性后的锆酸铅纳米纤维与聚偏氟乙烯进行复合,并通过旋涂法在ITO底电极上制备获得锆酸铅/聚偏氟乙烯复合厚膜.详细研究了锆酸铅纳米纤维微观形貌以及其含量对纳米复合厚膜的介电和储能性能的影响.结果显示,与纯的聚偏氟乙烯厚膜相比,锆酸铅/聚偏氟乙烯复合厚膜具有更高的介电常数以及储能性能.特别是当锆酸铅纳米纤维的质量分数为30%时,此时的纳米复合厚膜在3 636 k V/cm的电场下可以获得最大的储能密度7. 62 J/cm3和较高的储能效率61. 5%.同时,该组分的锆酸铅/聚偏氟乙烯复合厚膜表现出良好的温度稳定性.
Polyvinylidene Fluoride(PVDF)was compounded with different content of PbZrO3 nanofibers(PZ NFs)modified by phthalic acid.PZ/PVDF composites films were fabricated on ITO substrate by using a spin-coating method.The effects of PZ NFs content on the microstructure,dielectric properties and energy-storage performance were investigated.Compared with the pure PVDF polymer thick films,PZ/PVDF composites thick films exhibit a large enhancement in dielectric properties and energy-storage performance.Particularly,a giant recoverable energy-storage density of 7.62 J/cm^3 and the corresponding efficiency of 61.5%were obtained in the PZ/PVDF nanocomposites films loaded with 30%PZ NFs in mass fraction at 3 636 kV/cm.Moreover,the PZ/PVDF composites films loaded with 30%PZ NFs in mass fraction also displayed good energy-storage stability over a large temperature range.
作者
王健
李雍
郝喜红
WANG Jian;LI Yong;HAO Xi-hong(Materials and Metallurgy School,Inner Mongolia University of Science and Technology,Baotou 014010,China)
出处
《内蒙古科技大学学报》
CAS
2018年第4期311-316,363,共7页
Journal of Inner Mongolia University of Science and Technology
基金
内蒙古自然科学基金资助项目(2015JQ04
2017BS0503)
国家自然科学基金资助项目(51702169)
内蒙古自治区大学创新研究团队计划资助项目(NMGIRT-A1605)
内蒙古自治区大学青年科技人才计划
内蒙古自治区草原人才计划
包头创新指导基金资助项目(CX2017-58)
关键词
聚偏氟乙烯
反铁电
纳米复合厚膜
储能性能
PVDF
antiferroelectric
nanocomposited thick films
energy-storage performances
