基于塑料镜片防水加硬抗老化光学薄膜的研制

发布时间：2018-05-03 23:28

  本文选题：光学薄膜 + 光学塑料　； 参考：《长春理工大学》2016年硕士论文

【摘要】：因为光学塑料新的应用不断出现,所以对膜层的要求就更加严格。光学塑料表面硬度差,在温度升高后容易发生膜裂的现象一直制约着光学塑料制品的进一步发展。本课题主要解决现有光学塑料镜片表面易划伤、高温时容易发生膜裂的问题。选取机械性能稳定的Ti3O5、SiO2和LSA作为高、低折射率材料,依据光学薄膜理论,借助TFCalc软件设计膜系,通过电子束加热蒸发和离子源辅助沉积薄膜,在膜系的最外层用电阻加热法镀制防水膜。通过选择新材料LSA作为连接层,增强了塑料镜片与膜层的附着力,解决了膜层与塑料镜片膨胀系数不匹配的问题,提高了塑料镜片的抗温能力。通过不断优化工艺参数,在光学塑料基底上得到400-700nm反射率R=0.9%的减反膜。在经过耐磨测试后,塑料表面硬度明显提高,摩擦后测得憎水角到大于110°,在高温125℃加热100min后,没有发生膜裂现象。研究塑料镜片的镀膜技术,对塑料光学元件的应用和发展具有一定的促进作用。
[Abstract]:As new applications of optical plastics continue to emerge, the requirements for film coating are more stringent. The surface hardness of optical plastics is poor, and the film cracking is easy to occur after the increase of temperature, which has been restricting the further development of optical plastic products. This paper mainly solves the problem that the surface of the optical plastic lens is easily scratched and the film crack is easy to occur at high temperature. Ti3O5SiO2 and LSA, which have stable mechanical properties, are selected as high and low refractive index materials. According to the theory of optical thin film, the film system is designed by TFCalc software, and the film is deposited by electron beam heating evaporation and ion source assisted deposition. A waterproof film is deposited on the outermost layer of the film by resistance heating. By selecting the new material LSA as the connecting layer, the adhesion between the plastic lens and the film is enhanced, the problem of the mismatch of the expansion coefficient between the film and the plastic lens is solved, and the temperature resistance of the plastic lens is improved. The antireflection film with 400-700nm reflectivity of 0.9% was obtained on the optical plastic substrate by optimizing the process parameters. After wear resistance test, the hardness of plastic surface was obviously improved, and the hydrophobic angle was measured to be more than 110 掳after friction. After heating 100min at high temperature of 125 鈩，

本文编号：1840578