CAJ | 학술논문

制备均苯型聚酰亚胺/纳米三氧化二铝复合薄膜，通过超声机械共混法对纳米颗粒进行物理分散，使用扫描电镜（SEM）、红外光谱（FT-IR）分别对复合材料表面微观形貌和结构进行了表征与研究，通过介电谱测试系统对PI复合材料进行电性能方面的分析研究。结果发现：纳米颗粒分散均匀，超声波对纳米颗粒有很好的分散效果；频率在102～105Hz之间， PI复合薄膜介电常数和介电损耗角正切随纳米Al2O3含量质量分数的增加而增大。
제비균분형취선아알/납미삼양화이려복합박막，통과초성궤계공혼법대납미과립진행물리분산，사용소묘전경（SEM）、홍외광보（FT-IR）분별대복합재료표면미관형모화결구진행료표정여연구，통과개전보측시계통대PI복합재료진행전성능방면적분석연구。결과발현：납미과립분산균균，초성파대납미과립유흔호적분산효과；빈솔재102～105Hz지간， PI복합박막개전상수화개전손모각정절수납미Al2O3함량질량분수적증가이증대。
Polypyromellitimide/nano-alumina composite films were prepared. Nano-particles were dispersed by ultrasonic-mechanical mixing method. The surface morphology and structure of PI composite film were examined and characterized by SEM and FTIR spectrometer, and the electrical properties were researched by use of dielectric spectroscopy test system. The results showed that dielectric constant and the dielectric loss of composite film improve when the content of nano-alumina was increasing between 102~105Hz.