成型方法和工艺对不同结构MCOC导光板光学性能的影响  

Effects of Molding Method and Processing Technology on Optical Performance of MCOC Light Guide Plate with Different Structures

作　　者：王鑫 张通 王静 WANG Xin;ZHANG Tong;WANG Jing(Mechanical Engineering College,Henan Engineering College,Zhengzhou 451191,China)

机构地区：[1]河南工程学院机械工程学院,郑州451191

出　　处：《中国塑料》2018年第11期61-65,共5页China Plastics

摘　　要：针对导光板透光性能,选取透光率和雾度作为光学指标,考察成型方法、主要工艺参数和制品结构对茂金属环烯烃聚合物(MCOC)导光板的光学性能的影响。结果表明,注压成型制品的透光率普遍要高于其他成型,最高可达到93.73%,雾度也要低于其他成型;随着模具温度的升高,所有制品的雾度基本上呈增长趋势,而熔体温度的变化未发现明显的规律;薄壁制品的透光率要高于厚壁制品,点槽制品透光率高于沟槽制品,雾度也要低于沟槽制品。Aiming at the concern about light performance of light guide plate(LGP)and taking light transmittance and haze as optical indices,the effects of molding method,process parameters and product structure on the optical performance of the LGP made from metallocene cycloolefin copolymer(MCOC)were investigated.The results indicated that the light transmittance of injection-compression molded LGP was normally higher than that of the ones molded by other methods.The injection-compression molding method made the LGP the highest value of 93.73%with a haze lower than other molding methods.With an increase in mold temperature,the haze tended to increase for all of the LGP products,and there was no remarkable change found in melt temperature.The light transmittance of thin-wall LGP was found to be higher than that of the thick wall one.Moreover,the light transmittance of the dot-slot structural LGP was higher than the groove structural one,but its haze was much lower.

关 键 词：导光板 透光率 注压成型 模具温度 点槽 

分 类 号：TQ320.5[化学工程—合成树脂塑料工业]