聚合物复合材料薄膜极化及性能的研究

Study on Polarization and Properties of Polymer Composite Thin Film

制取了PbTiO3 纳米微晶与高透明度的聚合物PEK -C组成的复合材料薄膜 ,从介电性和有效场理论出发 ,对极化条件的优化进行了研究。通过测量极化后的复合材料的X -ray衍射 ,得知PbTiO3 微晶的c轴取向度达到 68% ,测量了 3 80nm～ 90 0nm的透过光谱 ,估算了极化前后光学带隙能量。

The polarization conditions of the composite of nano-crystal PbTiO 3 and high transparent polymer PEK-C were investigated.The best polarization condition of COPET was determined,Through the X-ray diffraction of polarized and unpolarized composite,it was obtained that the c axis orientation ratio η of nano-crystal PbTiO 3 was calculated to be 68%.The transparency spectra in the range 380nm～900nm was measured.The optical band-gaps energy of polarized and unpolarized composite were estimated.