论文部分内容阅读
研究了一种高性能聚碳酸酯(PC)薄膜。将PC粉末配成不同浓度的聚碳酸酯溶液,用旋转涂覆法在玻璃衬底上制备了均匀透明的聚碳酸酯薄膜,并对材料和薄膜的热性能及光学性能等分别进行了表征。对材料通过示差扫描量热法(DSC)测得了玻璃化转变温度;对薄膜用紫外光谱法测量了吸收谱及光损耗,并用棱镜耦合仪测量了其折射率、膜厚及折射率随温度的变化;另外,还分析了不同实验条件对材料成膜性的影响。实验结果表明,这种新型聚碳酸酯材料具有高玻璃化温度和低吸收损耗等优点,适用于制作光波导器件芯层。
A high performance polycarbonate (PC) film was studied. The PC powder was dubbed into different concentrations of polycarbonate solution. A uniform and transparent polycarbonate film was prepared on the glass substrate by spin coating. The thermal and optical properties of the material and the film were characterized respectively. The glass transition temperature of the material was measured by differential scanning calorimetry (DSC). The absorption and optical loss of the film were measured by ultraviolet spectroscopy. The refractive index, film thickness and refractive index of the film were measured with the temperature In addition, the influence of different experimental conditions on the film-forming property was also analyzed. The experimental results show that this new type of polycarbonate has the advantages of high glass transition temperature and low absorption loss, which is suitable for the fabrication of optical waveguide device core.