摘要
随着电子显示行业发展,超薄玻璃得到广泛应用,当玻璃厚度降低至0.1 mm以下,超薄玻璃开始呈现明显的柔韧性,为卷对卷(Roll-to-Roll)生产制造方式提供了可能。本文基于两点弯曲法原理,设计开发超薄玻璃柔韧性表征实验方法,通过系统验证实验,实验装置本身的影响因素包括数码相机拍摄频率和玻璃弯曲轨迹的3点拟合软件,当相机拍摄频率大于10帧/s可获得连续图像,有利于临界曲率半径分析。玻璃试样最佳尺寸规格要求长度为本征长度(可弯曲最小圆的长度)一半,宽度为50 mm左右,挡板加载速率为5 mm/s时,可提高实验结果的精度。
With the development of electronic display industry,ultra-thin glass has been widely used.When the thickness of glass is reduced down to less than 0.1 mm,the ultra-thin glass begins to possess distinct flexibility,which provides the possibility for roll-to-roll manufacturing.Based on the principle of two-point bending method,this paper designs and develops an experimental method to characterize the flexibility of ultra-thin glass.Through systematic verification experiments,the influences of the experimental device itself including the shooting frequency of digital camera and the three-point fitting software of glass bending trajectory on the results of flexibility measurements were investigated.When the shooting frequency of the camera is more than 10 frames per second,continuous images can be obtained,which is beneficial for determining the critical radius of curvature.The optimum length of glass sample should be half the intrinsic length(the length of the minimum bendable circle),and width should be about 50 mm.The pushing rate of baffle should be 5 mm/s so that the best experimental results can be obtained.
作者
王为
张微尘
田英良
李建峰
李永明
孙诗兵
吕锋
WANG Wei;ZHANG Weichen;TIAN Yingliang;LI Jianfeng;LI Yongming;SUN Shibing;LV Feng(College of Material Science and Engineering,Beijing University of Technology,Beijing 100124,China;National Glassware Quality Inspection&Testing Center,Qixian 030900,China)
出处
《玻璃与搪瓷》
CAS
2019年第6期1-6,共6页
Glass & Enamel
基金
国家重点研发计划资助项目(2017YFB0310201-04)
关键词
超薄玻璃
柔韧性
拍摄频率
试样尺寸
加载速率
ultra-thin glass
flexibility
shooting frequency
sample size
loading rate
