摘要
以聚甲基丙烯酸甲酯(PMMA)为基体,通过原位复合的方法制备含纳米SiO_2的复合材料。用紫外-可见分光光度计(UVPC)和傅里叶红外光谱仪(FT-IR)研究复合材料的光谱特性。结果表明:当掺入少量纳米SiO_2时,复合材料的反射谱峰和透射谱峰均发生一定程度的红移;当纳米SiO_2含量超过一定量时,复合材料透过率显著降低。此外,依据Frrsnel's公式和Beer's定律计算了复合材料的光学常数。
Poly （methyl methacrylate） （PMMA） doped nano-SiO2 were prepared by in situ polymeriza- tion. The absorption spectrum and reflection spectrum of composite materials were recorded by ultraviolet- visible spectrophotometer （UVPC） and Fourier transform infrared spectroscopy （FT-IR） spectrophotome- ter independently. Results showed that the reflect spectrum and the transmission spectrum had a obvious pick shift to a long wavelength. When the content of doped nano-SiO2 exceeded a certain amount, the transmission would decreased rapidly. The optical constants of composite material were calculated based on the Fresnel＇s formulae and the Lambert-Beer＇s law.
出处
《南京工业大学学报（自然科学版）》
CAS
北大核心
2012年第4期101-104,共4页
Journal of Nanjing Tech University(Natural Science Edition)
基金
江苏省自然科学基金资助项目(BK2010553)
关键词
复合材料
原位
光学常数
composite material
in situ
optical constant
