CN107324667A - 一种自洁且屏蔽蓝光镀膜的制备方法 - Google Patents

一种自洁且屏蔽蓝光镀膜的制备方法 Download PDF

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CN107324667A
CN107324667A CN201710570850.9A CN201710570850A CN107324667A CN 107324667 A CN107324667 A CN 107324667A CN 201710570850 A CN201710570850 A CN 201710570850A CN 107324667 A CN107324667 A CN 107324667A
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张建平
张川
张千
张潇
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HEBEI MILSON TITANIUM DIOXIDE CO Ltd
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Abstract

本发明涉及一种自洁且屏蔽蓝光镀膜的制备方法,属于镀膜技术领域,该制备方法包括镀膜原料的制备以及镀膜成型两个部分,镀膜原料制备包括La‑C‑TiO2溶胶和SiO2‑TiO2溶胶的制备,La‑C‑TiO2溶胶的制备过程包含TiO2溶胶的制备,SiO2‑TiO2溶胶制备过程包含SiO2溶胶、TiO2溶胶的制备,镀膜成型过程包括SiO2膜成型、La‑C‑TiO2氧化物薄膜成型以及SiO2‑TiO2薄膜的成型,将三层膜分层镀到待镀膜体表面,待镀膜体材质可以为玻璃或者有机玻璃,该镀膜不但可以过滤具有危害的蓝光,还具有防雾、自洁性能,可以应用到眼镜、电子产品上。

Description

一种自洁且屏蔽蓝光镀膜的制备方法
技术领域
本发明属于镀膜技术领域,具体涉及一种自洁且屏蔽蓝光镀膜的制备方法。
背景技术
目前人们使用智能手机、电脑、电视等电子产品的时间约为白天的一半以上,长时间盯看电子产品,不但视力会下降,甚至眼睛会发生病变,电子产品中波长在400-455nm之间的蓝光对眼睛的伤害最大,蓝光波短能量高,能够穿透晶状体直达视网膜,蓝光照射视网膜时间过长或者能量过高时,视网膜色素上皮细胞会发生衰亡,上皮细胞的衰亡会导致光敏感细胞缺少养分从而引起视力损伤,而且这些损伤是不可逆的,基于上述原因,人们对于能够避免蓝光损伤的膜有很高的要求,而在抗蓝光膜方面的研究也逐渐得到重视。
发明内容
本发明克服了现有技术的不足,提供了一种自洁且屏蔽蓝光镀膜的制备方法,该制备方法经过三层膜的分步制备得到一体式的镀膜成品,该成品不仅具备较好的屏蔽有害蓝光的作用,而且还具备自洁功能,能够广泛应用于眼镜、贴膜等日常用品上。
本发明的具体技术方案是:
一种自洁且屏蔽蓝光镀膜的制备方法,关键点是,所述的制备方法包括以下步骤:
A、La-C-TiO2溶胶的制备
将硝酸镧、无水乙醇、去离子水、盐酸以及乙醇按照体积比(1.8-2):60:(5-8):(7-12):(20-23.2)进行混合,得到pH值为2-3的c溶液,将四丁基氢氧化铵与无水乙醇按照体积比1:(2.5-3.5)进行混合,得到d溶液,将c溶液逐滴滴入TiO2溶胶中并以1300r/min-1700r/min的速度进行搅拌,随后再逐滴滴入d溶液并搅拌均匀,c溶液和d溶液的滴加量与TiO2溶胶的体积比均为1:(17-21),得到La-C-TiO2溶胶;
B、SiO2-TiO2溶胶的制备
将SiO2溶胶加入到TiO2溶胶中,SiO2溶胶添加量与TiO2溶胶体积比为12.7:(52-56),800r/min-1200r/min搅拌25-35min,然后超声0.8-1.2h,得到的混合溶胶,即为SiO2-TiO2溶胶;
C、镀膜的制备
将待镀膜体浸入SiO2溶胶中,然后以5-6cm/min的速度向上提拉,随后放入真空干燥箱中,温度80-90℃,持续时间25-35min,干燥后放入马弗炉中煅烧,温度550-650℃,持续时间2.5-3.5h,自然冷却,在待镀膜体表面形成SiO2膜,得到a样品;
将a样品浸入La-C-TiO2溶胶中,然后以4.5-5.5cm/min的速度拉出,在马弗炉中以6-8℃/min加热至65-75℃烘干4-6min,再以6-8℃/min加热至180-220℃固化5-10min,最后以6-8℃/min加热至430-470℃,保持10-30min,自然冷却,在a样品SiO2膜表面形成La-C-TiO2氧化物薄膜,得到b样品;
将b样品浸入SiO2-TiO2溶胶中,然后以4.5-5.5cm/min的速度垂直向上拉出,在马弗炉中以6-8℃/min加热至60-80℃烘干4-6min,再以6-8℃/min加热至180-220℃固化5-10min,最后以6-8℃/min加热至400-500℃,保持10-30min,自然冷却,在b样品La-C-TiO2氧化物薄膜表面形成透明的SiO2-TiO2薄膜,最终在待镀膜体表面形成镀膜成品。
所述的步骤A中的TiO2溶胶制备过程如下:
将无水乙醇、50%的醋酸和水以体积比(70-90):1:(7-11)进行混合,形成a溶液,将无水乙醇和钛酸丁酯水溶液以体积比(3-5):1进行混合,搅拌均匀后形成b溶液;将a溶液逐滴加入b溶液中,a溶液的添加量与b溶液的体积比为(1.5-2.5):1,搅拌均匀后得到TiO2溶胶。
所述的步骤B中的TiO2溶胶制备过程如下:
8-12℃条件下,向无水乙醇中滴加硝酸,800-1200r/min搅拌25-35min,再加入钛酸丁酯,800-1200r/min搅拌25-35min,再滴加蒸馏水,无水乙醇、钛酸丁酯、蒸馏水和硝酸的体积之比为(45-55):2:1:0.05,800-1200r/min搅拌12-18min,得到TiO2溶胶。
所述的步骤B中的SiO2溶胶制备过程如下:
8-12℃条件下,将无水乙醇和正硅酸乙酯混合并以800-1200r/min搅拌25-35min,随后滴加硝酸并以800-1200r/min搅拌25-35min,再滴加蒸馏水,无水乙醇、正硅酸乙酯、蒸馏水和硝酸的体积比为(95-110):7:10:0.05,800-1200r/min搅拌25-35min,形成混合液,用超声波清洗机对该混合液进行超声0.8-1.2h,超声后静置1.5-2.5h,然后再次进行超声0.8-1.2h,得到SiO2溶胶。
本发明的有益效果是:本发明通过三层分步镀膜进行自洁且屏蔽蓝光镀膜的制备,三层膜包括由内向外制备的SiO2膜、La-C-TiO2氧化物薄膜以及SiO2-TiO2薄膜,La-C-TiO2氧化物薄膜和SiO2-TiO2薄膜分别具备屏蔽蓝光和自洁功能,而最内层的SiO2膜能够增加La-C-TiO2氧化物薄膜的附着力,使得三层膜体结合较好,形成一体式的自洁且屏蔽有害蓝光的镀膜成品。
具体实施方式
本发明涉及一种自洁且屏蔽蓝光镀膜的制备方法,该制备方法包括La-C-TiO2溶胶的制备、SiO2-TiO2溶胶的制备以及镀膜的制备,所制备的镀膜包括由内向外的SiO2膜、La-C-TiO2氧化物薄膜以及SiO2-TiO2薄膜,具体的制备过程通过具体实施例进行说明。
具体实施例,所述的制备方法包括以下步骤:
A、La-C-TiO2溶胶的制备
将8ml无水乙醇与0.1ml50%的醋酸水溶液混合,再加0.9ml水进行混合,形成a溶液,将8ml无水乙醇与2ml钛酸丁酯水溶液混合,1000r/min搅拌30min,形成b溶液;将a溶液逐滴加入b溶液中,a溶液的添加量与b溶液的体积比为2:1,搅拌均匀后得到TiO2溶胶;
将1.8ml硝酸镧溶于60ml无水乙醇中,加7ml去离子水,并加6.5ml盐酸至pH为2-3,最后添加乙醇得到100ml的c溶液,将25ml四丁基氢氧化铵与75ml无水乙醇混合,得到d溶液,将1ml的c溶液缓慢滴入TiO2溶胶中并1500r/min搅拌,随后再滴入1ml的d溶液并搅拌,得到La-C-TiO2溶胶;
B、SiO2-TiO2溶胶的制备
10℃条件下,将10ml无水乙醇和0.7ml正硅酸乙酯混合并1000r/min搅拌30min,随后滴加1滴硝酸并1000r/min搅拌30min,再滴加1ml蒸馏水并1000r/min搅拌30min,形成混合液,用超声波清洗机对该混合液进行超声1h,超声后静置2h,然后再次进行超声1h,得到SiO2溶胶;
10℃条件下,向50ml无水乙醇中滴加1滴硝酸,1000r/min搅拌30min,再加入2ml钛酸丁酯,1000r/min搅拌30min,再滴加1ml蒸馏水,快速搅拌15min,得到TiO2溶胶;
将SiO2溶胶加入到TiO2溶胶中,两者添加量的体积比为12.7:54,1000r/min搅拌30min,然后超声1h,得到的混合溶胶,即为SiO2-TiO2溶胶;
C、镀膜的制备
将待镀膜体,如玻璃或者有机玻璃,浸入SiO2溶胶中,然后以5.5cm/min的速度向上提拉,随后放入真空干燥箱中,温度85℃,持续时间30min,干燥后放入马弗炉中煅烧,温度600℃,持续时间3h,冷却后,得到涂有SiO2膜的待镀膜体;
将a样品浸入La-C-TiO2溶胶中,然后以5cm/min的速度拉出,在马弗炉中以7℃/min加热至70℃烘干5min,再以7℃/min加热至200℃固化8min,最后以7℃/min加热至450℃,保持20min,自然冷却,在待镀膜体的SiO2膜表面形成La-C-TiO2氧化物薄膜,得到b样品;
将b样品浸入SiO2-TiO2溶胶中,然后以5cm/min的速度垂直向上拉出,在马弗炉中以7℃/min加热至60-80℃烘干5min,再以7℃/min加热至200℃固化5-10min,最后以7℃/min加热至450℃,保持20min,自然冷却,在b样品La-C-TiO2氧化物薄膜表面形成透明的SiO2-TiO2薄膜,最终在待镀膜体表面形成镀膜成品。
本发明中的镀膜制备过程分为原料制备和镀膜成型两个部分,原料制备包括La-C-TiO2溶胶和SiO2-TiO2溶胶的制备,La-C-TiO2溶胶的制备过程包含TiO2溶胶的制备,SiO2-TiO2溶胶制备过程包含SiO2溶胶、TiO2溶胶的制备,镀膜成型过程包括SiO2膜成型、La-C-TiO2氧化物薄膜成型以及SiO2-TiO2薄膜的成型,将三层膜分层镀到待镀膜体表面,La-C-TiO2氧化物薄膜和SiO2-TiO2薄膜分别具备屏蔽蓝光和自洁功能,而最内层的SiO2膜能够增加La-C-TiO2氧化物薄膜的附着力,使得三层膜体结合较好,形成一体式的自洁且屏蔽有害蓝光的镀膜成品,该镀膜不但可以过滤具有危害的蓝光,还具有防雾、自洁性能,可以应用到眼镜、电子产品上,通过紫外可见光光度计分析本发明制备的镀膜成品,其可以屏蔽77.6%的有害蓝光,用接触角测试仪测试镀膜成品润湿的接触角为4.3度,具备自洁、防雾功能,因此可以用于眼睛、贴膜等对屏蔽蓝光或有自洁需求的用品上。

Claims (4)

1.一种自洁且屏蔽蓝光镀膜的制备方法,其特征在于,所述的制备方法包括以下步骤:
A、La-C-TiO2溶胶的制备
将硝酸镧、无水乙醇、去离子水、盐酸以及乙醇按照体积比(1.8-2):60:(5-8):(7-12):(20-23.2)进行混合,得到pH值为2-3的c溶液,将四丁基氢氧化铵与无水乙醇按照体积比1:(2.5-3.5)进行混合,得到d溶液,将c溶液逐滴滴入TiO2溶胶中并以1300r/min-1700r/min的速度进行搅拌,随后再逐滴滴入d溶液并搅拌均匀,c溶液和d溶液的滴加量与TiO2溶胶的体积比均为1:(17-21),得到La-C-TiO2溶胶;
B、SiO2-TiO2溶胶的制备
将SiO2溶胶加入到TiO2溶胶中,SiO2溶胶添加量与TiO2溶胶体积比为12.7:(52-56),800r/min-1200r/min搅拌25-35min,然后超声0.8-1.2h,得到的混合溶胶,即为SiO2-TiO2溶胶;
C、镀膜的制备
将待镀膜体浸入SiO2溶胶中,然后以5-6cm/min的速度向上提拉,随后放入真空干燥箱中,温度80-90℃,持续时间25-35min,干燥后放入马弗炉中煅烧,温度550-650℃,持续时间2.5-3.5h,自然冷却,在待镀膜体表面形成SiO2膜,得到a样品;
将a样品浸入La-C-TiO2溶胶中,然后以4.5-5.5cm/min的速度拉出,在马弗炉中以6-8℃/min加热至65-75℃烘干4-6min,再以6-8℃/min加热至180-220℃固化5-10min,最后以6-8℃/min加热至430-470℃,保持10-30min,自然冷却,在a样品SiO2膜表面形成La-C-TiO2氧化物薄膜,得到b样品;
将b样品浸入SiO2-TiO2溶胶中,然后以4.5-5.5cm/min的速度垂直向上拉出,在马弗炉中以6-8℃/min加热至60-80℃烘干4-6min,再以6-8℃/min加热至180-220℃固化5-10min,最后以6-8℃/min加热至400-500℃,保持10-30min,自然冷却,在b样品La-C-TiO2氧化物薄膜表面形成透明的SiO2-TiO2薄膜,最终在待镀膜体表面形成镀膜成品。
2.根据权利要求1所述的一种自洁且屏蔽蓝光镀膜的制备方法,其特征在于,所述的步骤A中的TiO2溶胶制备过程如下:
将无水乙醇、50%的醋酸和水以体积比(70-90):1:(7-11)进行混合,形成a溶液,将无水乙醇和钛酸丁酯水溶液以体积比(3-5):1进行混合,搅拌均匀后形成b溶液;将a溶液逐滴加入b溶液中,a溶液的添加量与b溶液的体积比为(1.5-2.5):1,搅拌均匀后得到TiO2溶胶。
3.根据权利要求1所述的一种自洁且屏蔽蓝光镀膜的制备方法,其特征在于,所述的步骤B中的TiO2溶胶制备过程如下:
8-12℃条件下,向无水乙醇中滴加硝酸,800-1200r/min搅拌25-35min,再加入钛酸丁酯,800-1200r/min搅拌25-35min,再滴加蒸馏水,无水乙醇、钛酸丁酯、蒸馏水和硝酸的体积之比为(45-55):2:1:0.05,800-1200r/min搅拌12-18min,得到TiO2溶胶。
4.根据权利要求1所述的一种自洁且屏蔽蓝光镀膜的制备方法,其特征在于,所述的步骤B中的SiO2溶胶制备过程如下:
8-12℃条件下,将无水乙醇和正硅酸乙酯混合并以800-1200r/min搅拌25-35min,随后滴加硝酸并以800-1200r/min搅拌25-35min,再滴加蒸馏水,无水乙醇、正硅酸乙酯、蒸馏水和硝酸的体积比为(95-110):7:10:0.05,800-1200r/min搅拌25-35min,形成混合液,用超声波清洗机对该混合液进行超声0.8-1.2h,超声后静置1.5-2.5h,然后再次进行超声0.8-1.2h,得到SiO2溶胶。
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