论文部分内容阅读
用热蒸发和磁控溅射的物理镀膜方法和溶胶凝胶化学涂布的方法相结合制备了有机和无机复合纳米光学变色薄膜。光学变色薄膜为多层薄膜 ,当有自然光进入光学变色薄膜时 ,随着入射光和视角的变化在薄膜上可以看到明显的光变色效果。这种薄膜可以单独或与油墨组合作为一种新颖的防伪材料。根据多层复合膜光干涉原理经设计和计算确定薄膜为PET/Cr/介质 /Al膜系结构。介质分别是有机高聚物和SiO2 。SiO2 是多孔纳米材料 ,用溶胶凝胶方法制备 ,通过调节催化和凝胶的方式和条件 ,折射率在 1.15～ 1.4 5之间。介绍了制作方法和薄膜特性
Organic and inorganic composite nanochromic films were prepared by a physical coating method of thermal evaporation and magnetron sputtering and a sol-gel chemical coating method. Optical discoloration film is a multi-layer film, when natural light into the optical discoloration film, with the incident light and viewing angle changes can be seen in the film obvious photochromic effect. This film can be used alone or in combination with ink as a novel anti-counterfeit material. According to the principle of multi-layer composite film optical interference, the film is determined to be PET / Cr / dielectric / Al film structure by calculation and design. Media are organic polymer and SiO2. SiO2 is a porous nanomaterial prepared by a sol-gel method. The refractive index is between 1.15 and 1.4 5 by adjusting the manner and conditions of catalysis and gelation. The production method and film characteristics are introduced