摘要
以聚甲基丙烯酸甲酯(PMMA)为基片,采用一种上下模差温热压印的方法,制备具有双面微结构的超薄导光板。利用Deform^2D软件对压印过程中上模温度、下模温度和压强进行了有限元模拟,分析了不同工艺参数对双面微结构复制质量和聚合物成型情况的影响。以微结构的复制率和照度均匀度为评判依据,通过具体实验对模拟结果进行验证并得到了合适的工艺条件。结果表明:Deform^2D软件对导光板加工工艺参数的模拟与实验情况较为一致,当上模板温度为113℃,下模板温度为100℃,压强为11 MPa时,超薄导光板的结构复制率可达90%以上,照度均匀度可达72%。
Taking polymethyl methacrylate （PMMA） as matrix, ultra-thin light guide plate with double-sided micro structure was produced by differential hot embossing. The upper die temperature, the lower die temperature and the pressure were simulated by Deform 2D software, and the influence of different process parameters on the replication quality and the molding process of the double-sided micro structure was analyzed. Moreover,based on the replication rate of micro structure and illumination uniformity, the simulation results were verified by specific experiments and the proper technological conditions were obtained. The results showed that the simulation of the processing parameters of the light guide plate by Deform software was in good agreement with the actual experimental results. When the upper template temperature was about 113 ℃ , the lower template temperature was about 100 % and the pressure was about 11 MPa, the structural replication rate of the ultra-thin light guide plate eould reach more than 90% , and the illumination uniformity could be up to 72%.
作者
曹亚楠
许红
吴大鸣
刘颖
李瑞
马廷月
CAO Yanan;XU Hong;WU Daming;LIU Ying;LI Rui;MA Tingyue(Engineering Research Center for Polymer Processing Equipment,Ministry of Education,College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)
出处
《塑料》
CAS
CSCD
北大核心
2018年第4期77-81,共5页
Plastics
关键词
热压印
超薄导光板
有限元模拟
工艺参数
复制率
hot embossing
ultra-thin light guide plate
finite element simulation
process parameters
replication rate
