CN107325331A - 一种柔性显示器基质材料制备方法 - Google Patents

一种柔性显示器基质材料制备方法 Download PDF

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CN107325331A
CN107325331A CN201710419054.5A CN201710419054A CN107325331A CN 107325331 A CN107325331 A CN 107325331A CN 201710419054 A CN201710419054 A CN 201710419054A CN 107325331 A CN107325331 A CN 107325331A
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宋雪萍
杨爽
聂双喜
谢秋霞
刘秀宇
姜言
张坤
王双飞
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Guangxi University
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Abstract

本发明公开一种柔性显示器基质材料制备方法。该方法通过1)乙酰化纳米纤丝纤维素制备成膜、2)膜负压浸渍丙烯酸树脂和3)复合材料紫外光下固化三个步骤完成制备柔性显示器基质材料。本发明的优点：本发明提供了一种环境友好型柔性显示器基质材料的制备方法，并且赋予该柔性显示器基材较好的透光率、热性能、柔韧性以及表面平整度。

Description

一种柔性显示器基质材料制备方法
技术领域
本发明属于纳米纤丝纤维素复合材料领域，具体是一种柔性显示器基质材料制备方法。
背景技术
纳米纤丝纤维素与高分子材料复合，可使材料获得更优异的性能。根据高分子材料的结构、性能和应用的要求，纳米纤丝纤维素可作为增强相用于纳米复合材料的制备中，以提高复合材料的强度和降低生产成本，同时可开发环境友好型和高效的不同材料。因此纳米纤丝纤维素可为柔性屏幕、太阳能电池、柔性电极材料及导电纸提供新型的纳米复合材料基体。
光电子技术和柔性电子材料在过去十年中得到了快速地增长，在电子显示器领域，柔性屏幕优势明显，具有体积轻薄、功耗低、设备的续航能力长、可弯曲和柔韧性佳等优点。柔性屏幕的成功，量产不仅重大利好于新一代高端智能手机的制造，也因其低功耗、可弯曲的特性对可穿戴式设备的应用带来深远的影响，未来柔性屏幕将随着个人智能终端的不断渗透而广泛应用。目前研究成功的柔性显示器基材还存在效率、寿命、工艺操作性和成本等几方面的不足，因此尚未产业化。但预计3～5年内，柔性屏幕将有望大规模地运用到手机、可穿戴智能产品上。
在绿色复合材料的背景下，新的可生物降解的、柔软的和透明的纳米纤丝纤维素膜和再生纤维素膜(物)基板，引起了人们的关注，一些学者认为纳米纤丝纤维素复合材料具有作为柔性显示器基板的潜力。
发明内容
本发明的目的是提供一种柔性显示器基质材料制备方法。
本发明解决上述技术问题的技术方案如下：
一种柔性显示器基质材料制备方法，其特征在于：以乙酰化纳米纤丝纤维素和添加了活性稀释剂和光引发剂的丙烯酸树脂为原料，首先对纳米纤丝纤维素进行乙酰化改性处理，得到乙酰化纳米纤丝纤维素，然后通过真空抽滤法对乙酰化纳米纤丝纤维素抽滤制备成膜。将乙酰化纳米纤丝纤维素膜与添加了活性稀释剂和光引发剂的丙烯酸树脂通过负压浸渍后光固化制成一种改性纳米纤丝纤维素复合材料，操作步骤如下：
1.乙酰化纳米纤丝纤维素制备成膜：
取绝干量约为0.3g乙酰化纳米纤丝纤维素稀释至浓度为0.02％的悬浮液150mL，搅拌2h后使用直径90mm，孔径10～15μm，底层垫有孔径为0.22μm的亲水型聚四氟乙烯有机滤膜的G2砂芯漏斗进行真空抽滤制备乙酰化纳米纤丝纤维素膜,待乙酰化纳米纤丝纤维素均匀地成膜后将乙酰化纳米纤丝纤维素湿膜连同有机过滤膜一同取出，在乙酰化纳米纤丝纤维素膜上盖上一片有机过滤膜，并在有机过滤膜上覆盖滤纸，然后将样品用两块玻璃板平压夹持加予30N的压力，置于室温下干燥12h，再移到55℃的干燥箱中干燥24h，最终获得干燥的、平整光滑的乙酰化纳米纤丝纤维素膜；
2.膜负压浸渍丙烯酸树脂：
将步骤1)中制备好的乙酰化纳米纤丝纤维素膜在-0.09Mpa～-0.15Mpa压力下添加乙酰化纳米纤丝纤维素膜质量的0.2％～0.8％活性稀释剂和乙酰化纳米纤丝纤维素膜质量的10％～20％光引发剂的丙烯酸树脂中浸渍12h，浸渍结束后取出乙酰化纳米纤丝纤维素膜，使用小型涂布机刮去乙酰化纳米纤丝纤维素膜表面多余的丙烯酸树脂。
3.复合材料紫外光下固化：
将步骤2)中浸渍丙烯酸树脂的乙酰化纳米纤丝纤维素膜放入紫外光固化机中，在1000W的紫外光下固化3min～5min，最终获得复合材料，即柔性显示器基质材料。
本发明的优点：本发明提供了一种环境友好型柔性显示器基质材料的制备方法，并且赋予该柔性显示器基材较好的透光率、热性能、柔韧性以及表面平整度。
具体实施方式
以下结合具体实施例，对本发明作进一步详细说明。
实施例1
一种柔性显示器基质材料制备方法如下：
1.乙酰化纳米纤丝纤维素制备成膜：
取绝干量约为0.3g乙酰化纳米纤丝纤维素稀释至浓度为0.02％的悬浮液150mL，搅拌2h后使用直径90mm，孔径10～15μm，底层垫有孔径为0.22μm的亲水型聚四氟乙烯有机滤膜的G2砂芯漏斗进行真空抽滤制备乙酰化纳米纤丝纤维素膜,待乙酰化纳米纤丝纤维素均匀地成膜后将乙酰化纳米纤丝纤维素湿膜连同有机过滤膜一同取出，在乙酰化纳米纤丝纤维素膜上盖上一片有机过滤膜，并在有机过滤膜上覆盖滤纸，然后将样品用两块玻璃板平压夹持加予30N的压力，置于室温下干燥12h，再移到55℃的干燥箱中干燥24h，最终获得干燥的、平整光滑的乙酰化纳米纤丝纤维素膜。
2.膜负压浸渍丙烯酸树脂：
将步骤1中制备好的乙酰化纳米纤丝纤维素膜在-0.15Mpa压力下添加乙酰化纳米纤丝纤维素膜质量的0.2％～0.8％活性稀释剂和乙酰化纳米纤丝纤维素膜质量的10％～20％光引发剂的丙烯酸树脂中浸渍12h，浸渍结束后取出乙酰化纳米纤丝纤维素膜，使用小型涂布机刮去乙酰化纳米纤丝纤维素膜表面多余的丙烯酸树脂。
3.复合材料紫外光下固化：
将步骤2中浸渍丙烯酸树脂的乙酰化纳米纤丝纤维素膜放入紫外光固化机中，在1000W的紫外光下固化3min，最终获得复合材料，即柔性显示器基质材料。
实施例2
一种柔性显示器基质材料制备方法如下：
1.乙酰化纳米纤丝纤维素制备成膜：
取绝干量约为0.3g乙酰化纳米纤丝纤维素稀释至浓度为0.02％的悬浮液150mL，搅拌2h后使用直径90mm，孔径10～15μm，底层垫有孔径为0.22μm的亲水型聚四氟乙烯有机滤膜的G2砂芯漏斗进行真空抽滤制备乙酰化纳米纤丝纤维素膜,待乙酰化纳米纤丝纤维素均匀地成膜后将乙酰化纳米纤丝纤维素湿膜连同有机过滤膜一同取出，在乙酰化纳米纤丝纤维素膜上盖上一片有机过滤膜，并在有机过滤膜上覆盖滤纸，然后将样品用两块玻璃板平压夹持加予30N的压力，置于室温下干燥12h，再移到55℃的干燥箱中干燥24h，最终获得干燥的、平整光滑的乙酰化纳米纤丝纤维素膜。
2.膜负压浸渍丙烯酸树脂：
将步骤1中制备好的乙酰化纳米纤丝纤维素膜在-0.12Mpa压力下添加乙酰化纳米纤丝纤维素膜质量的0.2％～0.8％活性稀释剂和乙酰化纳米纤丝纤维素膜质量的10％～20％光引发剂的丙烯酸树脂中浸渍12h，浸渍结束后取出乙酰化纳米纤丝纤维素膜，使用小型涂布机刮去乙酰化纳米纤丝纤维素膜表面多余的丙烯酸树脂。
3.复合材料紫外光下固化：
将步骤2中浸渍丙烯酸树脂的乙酰化纳米纤丝纤维素膜放入紫外光固化机中，在1000W的紫外光下固化4min，最终获得复合材料，即柔性显示器基质材料。
实施例3
一种柔性显示器基质材料制备方法如下：
1.乙酰化纳米纤丝纤维素制备成膜：
取绝干量约为0.3g乙酰化纳米纤丝纤维素稀释至浓度为0.02％的悬浮液150mL，搅拌2h后使用直径90mm，孔径10～15μm，底层垫有孔径为0.22μm的亲水型聚四氟乙烯有机滤膜的G2砂芯漏斗进行真空抽滤制备乙酰化纳米纤丝纤维素膜,待乙酰化纳米纤丝纤维素均匀地成膜后将乙酰化纳米纤丝纤维素湿膜连同有机过滤膜一同取出，在乙酰化纳米纤丝纤维素膜上盖上一片有机过滤膜，并在有机过滤膜上覆盖滤纸，然后将样品用两块玻璃板平压夹持加予30N的压力，置于室温下干燥12h，再移到55℃的干燥箱中干燥24h，最终获得干燥的、平整光滑的乙酰化纳米纤丝纤维素膜。
2.膜负压浸渍丙烯酸树脂：
将步骤1中制备好的乙酰化纳米纤丝纤维素膜在-0.09Mpa压力下添加乙酰化纳米纤丝纤维素膜质量的0.2％～0.8％活性稀释剂和乙酰化纳米纤丝纤维素膜质量的10％～20％光引发剂的丙烯酸树脂中浸渍12h，浸渍结束后取出乙酰化纳米纤丝纤维素膜，使用小型涂布机刮去乙酰化纳米纤丝纤维素膜表面多余的丙烯酸树脂。
3.复合材料紫外光下固化：
将步骤2中浸渍丙烯酸树脂的乙酰化纳米纤丝纤维素膜放入紫外光固化机中，在1000W的紫外光下固化5min，最终获得复合材料，即柔性显示器基质材料。

Claims (1)

1.一种柔性显示器基质材料制备方法，其特征在于：以乙酰化纳米纤丝纤维素和添加了活性稀释剂和光引发剂的丙烯酸树脂为原料，首先对纳米纤丝纤维素进行乙酰化改性处理，得到乙酰化纳米纤丝纤维素，然后通过真空抽滤法对乙酰化纳米纤丝纤维素抽滤制备成膜。将乙酰化纳米纤丝纤维素膜与添加了活性稀释剂和光引发剂的丙烯酸树脂通过负压浸渍后光固化制成一种改性纳米纤丝纤维素复合材料，操作步骤如下：
1)乙酰化纳米纤丝纤维素制备成膜：
取绝干量约为0.3g乙酰化纳米纤丝纤维素稀释至浓度为0.02％的悬浮液150mL，搅拌2h后使用直径90mm，孔径10～15μm，底层垫有孔径为0.22μm的亲水型聚四氟乙烯有机滤膜的G2砂芯漏斗进行真空抽滤制备乙酰化纳米纤丝纤维素膜，待乙酰化纳米纤丝纤维素均匀地成膜后将乙酰化纳米纤丝纤维素湿膜连同有机过滤膜一同取出，在乙酰化纳米纤丝纤维素膜上盖上一片有机过滤膜，并在有机过滤膜上覆盖滤纸，然后将样品用两块玻璃板平压夹持加予30N的压力，置于室温下干燥12h，再移到55℃的干燥箱中干燥24h，最终获得干燥的、平整光滑的乙酰化纳米纤丝纤维素膜；
2)膜负压浸渍丙烯酸树脂：
将步骤1)中制备好的乙酰化纳米纤丝纤维素膜在-0.09Mpa～-0.15Mpa压力下添加乙酰化纳米纤丝纤维素膜质量的0.2％～0.8％活性稀释剂和乙酰化纳米纤丝纤维素膜质量的10％～20％光引发剂的丙烯酸树脂中浸渍12h，浸渍结束后取出乙酰化纳米纤丝纤维素膜，使用小型涂布机刮去乙酰化纳米纤丝纤维素膜表面多余的丙烯酸树脂；
3)复合材料紫外光下固化：
将步骤2)中浸渍丙烯酸树脂的乙酰化纳米纤丝纤维素膜放入紫外光固化机中，在1000W的紫外光下固化3min～5min，最终获得复合材料，即柔性显示器基质材料。
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