聚合物光盘基板材料的研究进展

光盘是一种以非接触方式记录/再现信息的信息记录介质，主要由基板、记录层和保护层组成。其中，基板材料所用的光学塑料是光盘生产的主要原材料，对光盘的性能和成本构成至关重要。本文综述了聚合物光盘基板材料的研究现状及其发展趋势。光盘基板材料主要包括传统的聚碳酸酯（PC），聚甲基丙烯酸甲酯（PMMA）、环氧树脂以及近年发展起来的非晶环烯烃聚合物。研制具有较低的双折射、吸湿性、固化成型收缩率以及较高的存储密度和存储寿命的光盘基板材料是聚合物光盘基板材料的一个重要研究领域。

Progress in the Study of Polymer Materials for Optical Disk Substrate

The optical disc is a kind of optical recording medium to record/reproduce information in non-touching manners, which mainly consists of substrate layer, recording layer and protection layer. The raw material used to manufacture optical disc is optical plastics, which determines the performance and cost of optical disc. The study on polymer materials for optical disc substrate and the tendency of development were reviewed in this paper. The current polymer materials for optical disc substrate usually include polycarbonate (PC), poly (methyl methacrylate) (PMMA), epoxy resins and noncrystalline cyclo-olefin copolymer developed in recent years. Developing new polymer materials for the optical disc substrate that possess low birefringence, low hygroscopicity, low shrinkage, and improved density and longevity of storage is an important research area of polymeric substrates for optical disc.