CN108893073A - 一种光学级疏水疏油防污防蓝光屏幕保护膜 - Google Patents

一种光学级疏水疏油防污防蓝光屏幕保护膜 Download PDF

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CN108893073A
CN108893073A CN201810582922.6A CN201810582922A CN108893073A CN 108893073 A CN108893073 A CN 108893073A CN 201810582922 A CN201810582922 A CN 201810582922A CN 108893073 A CN108893073 A CN 108893073A
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金国华
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SUZHOU XILIN OPTOELECTRONICS TECHNOLOGY INDUSTRY Co Ltd
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Abstract

本发明涉及一种光学级疏水疏油防污防蓝光屏幕保护膜。通过在基材层和保护层之间设置高折射率的第一折射材质层和低折射率的第二折射材质层，增加保护膜的透光性能，透光率高达98%以上；将蓝光吸收剂整合到上PET保护层中，大大提高了保护膜的防蓝光效果，阻隔有害蓝光达到83%以上；基材上下表面涂布有可降解的环保型有机硅压敏胶层作为离型剂层；采用无毒环保的PMA（丙二醇甲醚醋酸酯）、PGDA（丙二醇二醋酸酯）和乙酸乙酯作为溶剂，环保无毒无污染；离型膜和基材间离型力较轻，易撕、无残留；本发明的保护膜具有较强的抗静电性能、耐磨防刮性能及疏水疏油防指纹效果，各项性能指标达标。

Description

一种光学级疏水疏油防污防蓝光屏幕保护膜
技术领域
本发明属于保护膜技术领域，涉及一种光学级疏水疏油防污防蓝光屏幕保护膜。
背景技术
保护膜是一种用来保护已损坏表面的薄膜，其目的是防止受保护基材表面在运输、装配或加工过程中受到损害或污染，保护膜一直贴在受保护基材表面。随着电子科技产品的发展，特别是高端电子产品屏幕、半导体、FPC/PCB电路板工艺的不断精进，对其表面的封装保护及过程加工保护要求不断提高，特别是针对其保护材料的柔韧性、挺度、耐候性、洁净度及稳定性要求不断升级，现代平板显示器、TFT薄膜屏幕、LED、荧光灯及液晶显示器等都有背光源，其通过强大的电子流激发的光源中均有异常高的蓝光，蓝光是可见光的重要组成部分，它包括对人体有害的380nm-410nm的高能短波蓝光和对人体有益的420-500nm的短波蓝光，高能短波蓝光具有极高的能量，能够穿透晶状体直达视网膜，导致视网膜色素上皮细胞衰老，从而导致光敏细胞缺少养分而引起视力损失。现有的光学保护膜其功能性比较单一，现有技术中的防蓝光保护膜通常防蓝光效果较低或者将对人体有益的420nm-450nm的短波蓝光也过滤掉。
发明内容
发明的目的：本发明提供了一种光学级疏水疏油防污防蓝光屏幕保护膜。
技术方案：为了实现以上目的，本发明公开了一种光学级疏水疏油防污防蓝光屏幕保护膜，包括光学级的基材，所述基材表面经过电晕处理，电晕处理的基材的上下表面均涂布有可降解的环保型有机硅压敏胶层，基材下表面的有机硅压敏胶层下端复合有PET离型膜层，基材上表面的有机硅压敏胶层上端由下往上依次复合有第一折射材质层、第二折射材质层和上PET保护层，所述上PET保护层中添加有蓝光吸收剂；所述第一折射材质层、第二折射材质层和上PET保护层之间通过添加有抗静电剂的OCA胶层固定连接。
优选地，所述光学级基材为光学级PET基材，厚度为50-100μm，透光率≥98％％。
优选地，所述可降解的环保型有机硅压敏胶层包括以下重量份的组分：乙烯基硅油5-45份、甲基硅油3-8份、羟基生胶2-10份、甲基生胶5-45份、乙烯基生胶5-60份、甲基MQ树脂10-45份、乙烯基MQ树脂10-40份、含氢硅油0.2-5份、八甲基环四硅氧烷0.05-1份、铂金催化剂0.05-4份、甲苯10-30份、PMA 10-30份、PGDA 10-40份、乙酸乙酯10-50份。采用无毒环保的PMA(丙二醇甲醚醋酸酯)、PGDA(丙二醇二醋酸酯)和乙酸乙酯作为溶剂代替部分甲苯、二甲苯、乙基苯等有害有机溶剂，降低了有机溶剂的毒害性，PMA(丙二醇甲醚醋酸酯)分子中既有醚键、又有羰基、同时还含有烷基，既有非极性部分，又有极性部分，溶解性强；PGDA(丙二醇二醋酸酯)是一种安全低毒净味的中高沸点溶剂；乙酸乙酯，具有优异的溶解性、快干性，用途广泛。
优选地，所述OCA胶层包括以下重量份的组分：丙烯酸乙酯5-45份、丙烯酸丁酯10-55份、丙烯酸异辛酯5-40份、醋酸乙烯酯4-35份、丙烯酯10-25份、丙烯酰胺10-35份、苯乙烯10-45份、甲基丙烯酸甲酯10-45份、丙烯酸甲酯10-66份、甲基丙烯酸8-36份、丙烯酸8-45份、甲基丙烯酸羟乙酯2-18份、甲基丙烯酸羟丙酯2-15份、二氨基乙基甲基丙烯酸酯15-50份、异氰酸酯0.2-35份、二异氰酸酯0.5-40份、纳米氮化硅2-4份、硅酸酯偶联剂1-3份、抗静电剂1-3份。加入纳米氮化硅并且通过硅酸酯偶联剂分散于OCA胶中，提高了OCA胶的耐热稳定性，抗静电剂的加入提高了保护膜的抗静电效果。本发明所述的二异氰酸酯为甲苯二异氰酸酯、二苯基甲烷二异氰酸酯或对苯二异氰酸酯中的任一种。
优选地，所述上PET保护层为PET材质层，包括以下重量份的组分：PET 100-120份、蓝光吸收剂0.05-0.5份、乙酸乙酯4-8份、二氧化硅粒子10-20份、纳米氧化锌8-12份粒子、纳米蒙脱土10-20份、纳米二硫化钼8-12份、纳米二氧化钛10-16份、纳米碳化硅1-2份、三烷氧基硅基丙基全氟聚醚10-20份、铂金催化剂1-3份、UV固化剂3-5份、乙二胺3-6份。提高了保护膜的防蓝光性能；其中二氧化硅粒子直径为3-5μm，可以大大提高保护膜的防眩性能；纳米蒙脱土、纳米碳化硅和纳米氧化锌大大提高保护膜的耐磨性能；纳米二硫化钼和纳米二氧化钛大大提高了保护膜的光亮度，可以进一步提高了保护膜的透光率；三烷氧基硅基丙基全氟聚醚大大提高了上PET保护层的疏水疏油防指纹性能。
优选地，所述蓝光吸收剂为偶氮类、甲川类、酮亚酰胺类、偶氮金属络合类、萘酰亚胺类、硝基二苯胺类、氨基酮类、硝基类、蒽醌类，喹啉类、苯并噻唑类、苯并咪唑类、苯并蒽酮类、内酯型染料或金属氧化物中的一种或几种的混合物。
优选地，所述第一折射材质层为高折射率材质层，其中，高折射率材质层为氧化铝；所述第二折射材质层为低折射率材质层，其中所述低折射率材质层为氮化硅。
上述技术方案可以看出，本发明具有如下有益效果：
(1)通过在基材层和保护层之间设置第一折射材质层和第二折射材质层且第一折射材质层为高折射率材质层，第二折射材质层为低折射率材质层，增加保护膜的透光性能，透光率高达98％以上；
(2)将蓝光吸收剂整合到上PET保护层中，大大提高了保护膜的防蓝光效果，阻隔有害蓝光达到83％以上；
(3)基材上下表面涂布有可降解的环保型有机硅压敏胶层作为离型剂层；采用无毒环保的PMA(丙二醇甲醚醋酸酯)、PGDA(丙二醇二醋酸酯)和乙酸乙酯作为溶剂代替传统的甲苯、二甲苯、乙基苯等有害有机溶剂，环保无毒无污染，PMA(丙二醇甲醚醋酸酯)分子中既有醚键、又有羰基、同时还含有烷基，既有非极性部分，又有极性部分，溶解性强；PGDA(丙二醇二醋酸酯)是一种安全低毒净味的中高沸点溶剂；乙酸乙酯，具有优异的溶解性、快干性，用途广泛；离型膜和基材间离型力较轻，易撕、无残留；
(4)本发明的保护膜具有较强的抗静电性能、耐磨防刮性能及疏水疏油防指纹效果，各项性能指标达标。
附图说明
图1为本发明的保护膜结构示意图。
其中，1-基材，2-PET离型膜层，3-有机硅压敏胶层，4-第一折射材质层，5-第二折射材质层，6-上PET保护层，7-OCA胶层。
具体实施方式
下面结合附图对本发明的实施例进行详细的描述。
如图1所示，本发明公开了一种光学级疏水疏油防污防蓝光屏幕保护膜，包括光学级的基材1，所述基材1表面经过电晕处理，电晕处理的基材1的上下表面均涂布有可降解的环保型有机硅压敏胶层3，基材1下表面的有机硅压敏胶层3下端复合有PET离型膜层2，基材1上表面的有机硅压敏胶层3上端由下往上依次复合有第一折射材质层4、第二折射材质层5和上PET保护层6，所述上PET保护层6中添加有蓝光吸收剂；所述第一折射材质层4、第二折射材质层5和上PET保护层6之间通过添加有抗静电剂的OCA胶层7固定连接。
表1为本发明所述的可降解的环保型有机硅压敏胶层组成成分表(单位：份)；表2为本发明所述的OCA胶层组成成分表(单位：份)；表3为本发明所述的上PET保护层组成成分表(单位：份)；对比例1-4中有机硅压敏胶组分和实施例3相同具体配方见表1，对比例1-4中OCA胶层组成成分通实施例3；对比例1上PET保护层组成成分不含蓝光吸收剂，其余组分同实施例3，对比例2中上PET保护层组成成分不含三烷氧基硅基丙基全氟聚醚其余组分同实施例3，对比例3中上PET保护层不含纳米蒙脱土、纳米碳化硅和纳米氧化其余组分同实施例3，对比例4上PET保护层中不含纳米二硫化钼和纳米二氧化钛其余组分同实施例3具体见表3；表4为实施例1-3和对比文件1-4的保护膜的基本性能。
表1本发明所述的可降解的环保型有机硅压敏胶层组成成分表(单位：份)
表2本发明所述的OCA胶层组成成分表(单位：份)
表3本发明所述的上PET保护层组成成分表(单位：份)
表4为实施例1-3和对比文件1-4的保护膜的基本性能
从上述表格可以看出本发明实施例1-3制备的保护膜性能优异，光学性能达标，透光率高，防蓝光效果较好，对于有害高能蓝光阻隔可达83％以上，同时不影响有益蓝光的透过，产品各项性能达标，疏水疏油效果优异，防指纹效果好。
以上所述仅是本发明的优选实施方式，应指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进，这些改进也应视为本发明的保护范围。

Claims (7)

1.一种光学级疏水疏油防污防蓝光屏幕保护膜，其特征在于：包括光学级的基材，所述基材表面经过电晕处理，电晕处理的基材的上下表面均涂布有可降解的环保型有机硅压敏胶层，基材下表面的有机硅压敏胶层下端复合有PET离型膜层，基材上表面的有机硅压敏胶层上端由下往上依次复合有第一折射材质层、第二折射材质层和上PET保护层，所述上PET保护层中添加有蓝光吸收剂；所述第一折射材质层、第二折射材质层和上PET保护层之间通过添加有抗静电剂的OCA胶层固定连接。
2.根据权利要求1所述的一种光学级疏水疏油防污防蓝光屏幕保护膜，其特征在于：所述光学级基材为光学级PET基材，厚度为50-100μm，透光率≥98%%。
3.根据权利要求1所述的一种光学级疏水疏油防污防蓝光屏幕保护膜，其特征在于：所述可降解的环保型有机硅压敏胶层包括以下重量份的组分：乙烯基硅油5-45份、甲基硅油3-8份、羟基生胶2-10份、甲基生胶5-45份、乙烯基生胶5-60份、甲基MQ树脂10-45份、乙烯基MQ树脂10-40份、含氢硅油0.2-5份、八甲基环四硅氧烷0.05-1份、铂金催化剂0.05-4份、甲苯10-30份、PMA 10-30份、PGDA 10-40份、乙酸乙酯10-50份。
4.根据权利要求1所述的一种光学级疏水疏油防污防蓝光屏幕保护膜，其特征在于：所述OCA胶层包括以下重量份的组分：丙烯酸乙酯5-45份、丙烯酸丁酯10-55份、丙烯酸异辛酯5-40份、醋酸乙烯酯4-35份、丙烯酯10-25份、丙烯酰胺10-35份、苯乙烯10-45份、甲基丙烯酸甲酯10-45份、丙烯酸甲酯10-66份、甲基丙烯酸8-36份、丙烯酸8-45份、甲基丙烯酸羟乙酯2-18份、甲基丙烯酸羟丙酯2-15份、二氨基乙基甲基丙烯酸酯15-50份、异氰酸酯0.2-35份、二异氰酸酯0.5-40份、纳米氮化硅2-4份、硅酸酯偶联剂1-3份、抗静电剂1-3份。
5.根据权利要求1所述的一种光学级疏水疏油防污防蓝光屏幕保护膜，其特征在于：所述上PET保护层为PET材质层，包括以下重量份的组分：PET 100-120份、蓝光吸收剂0.05-0.5份、乙酸乙酯4-8份、二氧化硅粒子10-20份、纳米氧化锌8-12份粒子、纳米蒙脱土10-20份、纳米二硫化钼8-12份、纳米二氧化钛10-16份、纳米碳化硅1-2份、三烷氧基硅基丙基全氟聚醚10-20份、铂金催化剂1-3份、UV固化剂3-5份、乙二胺3-6份。
6.根据权利要求1或5所述的一种光学级疏水疏油防污防蓝光屏幕保护膜，其特征在于：所述蓝光吸收剂为偶氮类、甲川类、酮亚酰胺类、偶氮金属络合类、萘酰亚胺类、硝基二苯胺类、氨基酮类、硝基类、蒽醌类，喹啉类、苯并噻唑类、苯并咪唑类、苯并蒽酮类、内酯型染料或金属氧化物中的一种或几种的混合物。
7.根据权利要求1所述的一种光学级疏水疏油防污防蓝光屏幕保护膜，其特征在于：所述第一折射材质层为高折射率材质层，其中，高折射率材质层为氧化铝；所述第二折射材质层为低折射率材质层，其中所述低折射率材质层为氮化硅。
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Application publication date: 20181127