CN112578576A - 一种具有高硬度膜层结构的树脂镜片及其制备方法 - Google Patents
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Abstract
本发明公开了一种具有高硬度膜层结构的树脂镜片,包括树脂基片;涂覆于树脂基片的加硬液膜层,加硬液膜层至少浸涂4层;镀制于加硬液膜层上的二氧化硅膜层;镀制于二氧化硅膜层上的硝基纤维素膜层,硝基纤维素膜层含氮量低于15%;镀制于硝基纤维素膜层上的五氧化铌膜层与氧化铝膜层组合的复合膜层。本发明通过在树脂基片上涂覆至少4层的加硬液膜层,配合镀制的二氧化硅膜层、硝基纤维素膜层及复合膜层,提高树脂基片的硬度,解决以往树脂镜片容易划伤、易碎,无法保证其光学性能的麻烦。
Description
技术领域
本申请属于树脂镜片技术领域,具体地说,涉及一种具有高硬度膜层结构的树脂镜片及其制备方法。
背景技术
近年来,光学树脂镜片在国内外眼镜市场上需求越来越大,树脂镜片与玻璃镜片相比,具有质量轻、染色性能好、易于加工等优点,中高折射率光学树脂镜片更以高透光率、防紫外、超薄等特有的优势获得使用者的青睐。树脂镜片比较柔软,使用时容易被擦伤和划伤留下划痕,应用之前在其表面涂布耐磨涂层已被业内广泛公认。但这些耐磨涂层的存在会使体系变硬而降低镜片的抗冲击性,使镜片变脆易碎。故如何满足树脂镜片光学性能的同时,又能提高树脂镜片的硬度,防止其被划伤以及易碎,是本领域亟待解决的问题。
发明内容
有鉴于此,本申请所要解决的技术问题是提供了一种具有高硬度膜层结构的树脂镜片及其制备方法,用于解决以往树脂镜片容易划伤、易碎,无法保证其光学性能的麻烦。
为了解决上述技术问题,本发明公开了一种具有高硬度膜层结构的树脂镜片,包括树脂基片;
涂覆于树脂基片的加硬液膜层,加硬液膜层至少浸涂4层;
镀制于加硬液膜层上的二氧化硅膜层;
镀制于二氧化硅膜层上的硝基纤维素膜层,硝基纤维素膜层含氮量低于15%;
镀制于硝基纤维素膜层上的五氧化铌膜层与氧化铝膜层组合的复合膜层。
根据本发明一实施方式,其中上述复合膜层至少具有3层的五氧化铌膜层和2层的氧化铝膜层,且五氧化铌膜层与氧化铝膜层相互交替。
根据本发明一实施方式,其中上述加硬液膜层设置为有机硅。
根据本发明一实施方式,其中上述二氧化硅膜层厚度为20μm~200μm。
根据本发明一实施方式,其中上述复合膜层厚度为10μm~300μm。
本发明还公开了一种具有高硬度膜层结构的树脂镜片的制备方法,包括:
步骤a:树脂固化成型出树脂基片;
步骤b:将树脂基片夹持放入1号加硬液槽浸泡55s~60s清洗,成型出第一层加硬液膜层,糖度为17%~21%,温度为60℃±2℃;然后放入2号清水槽中清洗30s;取出夹持放入3号加硬液槽浸泡55s~60s,成型出第二层加硬液膜层,温度为60℃±2℃;然后放入4号清水槽中清洗30s;取出夹持放入5号加硬液槽浸泡55s~60s,成型出第三层加硬液膜层,糖度为17%~21%,温度为60℃±2℃;然后放入6号纯水槽清洗40s;取出夹持放入7号加硬液槽浸泡55s~60s,成型出第四层加硬液膜层,循环升温至45℃;然后放入8号空槽清水喷淋60s;取出烘干。
步骤c:在真空镀膜机内,采用真空镀膜工艺,在步骤b得到的树脂基片表面镀制二氧化硅膜层;
步骤d:将溅射室的气压抽至6.0×10-4Pa以下,通入纯度为99.999%的氩气,流量控制为10sccm,溅射室气压保持在0.25Pa,镀制硝基纤维素膜层;
步骤e:增加气压至3×10-3Pa,控制温度为45~65℃,镀制五氧化铌膜层与氧化铝膜层组合的复合膜层。
与现有技术相比,本申请可以获得包括以下技术效果:
通过在树脂基片上涂覆至少4层的加硬液膜层,配合镀制的二氧化硅膜层、硝基纤维素膜层及复合膜层,提高树脂基片的硬度,解决以往树脂镜片容易划伤、易碎,无法保证其光学性能的麻烦。
当然,实施本申请的任一产品必不一定需要同时达到以上所述的所有技术效果。
附图说明
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1是本申请实施例的具有高硬度膜层结构的树脂镜片示意图。
附图标记
树脂基片10,加硬液膜层20,二氧化硅膜层30,硝基纤维素膜层40,复合膜层50。
具体实施方式
以下将配合附图及实施例来详细说明本申请的实施方式,借此对本申请如何应用技术手段来解决技术问题并达成技术功效的实现过程能充分理解并据以实施。
请参考图1,图1是本申请实施例的具有高硬度膜层结构的树脂镜片示意图。如图所示,一种具有高硬度膜层结构的树脂镜片,包括树脂基片10;涂覆于树脂基片10的加硬液膜层20,加硬液膜层20至少浸涂4层;镀制于加硬液膜层20上的二氧化硅膜层30;镀制于二氧化硅膜层30上的硝基纤维素膜层40,硝基纤维素膜层40含氮量低于15%;镀制于硝基纤维素膜层40上的五氧化铌膜层与氧化铝膜层组合的复合膜层50。
在本发明一实施方式中,树脂基片10由树脂单体固化成型,表面涂覆有至少4层的加硬液膜层20,加硬液膜层20通过将树脂基片10沉浸于加硬液中成型,用于提高树脂基片10的硬度,增强抗刮花性能。二氧化硅膜层30通过真空离子溅射蒸镀,用于增强树脂基片10的增透和减反效果。硝基纤维素膜层40在光的催化效果下,能够大大吸收强光,增强杂散光的滤除效果。复合膜层50由五氧化铌膜层与氧化铝膜层组成,实现有害波段的蓝光红光吸收过滤,减小眼睛受损疲劳。
另外,硝基纤维素膜层40含氮量低于15%控制,用于提高其使用寿命的持久性。
优选地,复合膜层50至少具有3层的五氧化铌膜层和2层的氧化铝膜层,且五氧化铌膜层与氧化铝膜层相互交替,形成至少五层的有机膜层,充分吸收有害光,提高树脂基片10的增透性。另外,复合膜层50厚度为10μm~300μm,应用性强。
在一实施方式中,加硬液膜层20设置为有机硅,树脂基片10硬度提高明显。
另外,二氧化硅膜层30厚度为20μm~200μm,应用广泛。
本发明还公开了一种具有高硬度膜层结构的树脂镜片的制备方法,包括:
步骤a:树脂固化成型出树脂基片,选自市面常用的树脂单体成型;
步骤b:将树脂基片夹持放入1号加硬液槽浸泡55s~60s,成型出第一层加硬液膜层,糖度为17%~21%,温度为60℃±2℃;然后放入2号清水槽中清洗30s;取出夹持放入3号加硬液槽浸泡55s~60s,成型出第二层加硬液膜层,温度为60℃±2℃;然后放入4号清水槽中清洗30s;取出夹持放入5号加硬液槽浸泡55s~60s,成型出第三层加硬液膜层,糖度为17%~21%,温度为60℃±2℃;然后放入6号纯水槽清洗40s;取出夹持放入7号加硬液槽浸泡55s~60s,成型出第四层加硬液膜层,循环升温至45℃;然后放入8号空槽清水喷淋60s;取出烘干。在本步骤中,依次将树脂基片10夹持送入加硬液槽加硬,清洗槽清洗,完成加硬液膜层的成型,同时清水槽冲洗,去除部分杂质,保证镜片基体10成膜后的清洁度,提高膜层的均匀性。
步骤c:在真空镀膜机内,采用真空镀膜工艺,在步骤b得到的树脂基片表面镀制二氧化硅膜层;
步骤d:将溅射室的气压抽至6.0×10-4Pa以下,通入纯度为99.999%的氩气,流量控制为10sccm,溅射室气压保持在0.25Pa,镀制硝基纤维素膜层;
步骤e:增加气压至3×10-3Pa,控制温度为45~65℃,镀制五氧化铌膜层与氧化铝膜层组合的复合膜层。
综上所述,本发明通过在树脂基片上涂覆至少4层的加硬液膜层,配合镀制的二氧化硅膜层、硝基纤维素膜层及复合膜层,提高树脂基片的硬度,解决以往树脂镜片容易划伤、易碎,无法保证其光学性能的麻烦。
上述说明示出并描述了本申请的若干优选实施例,但如前所述,应当理解本申请并非局限于本文所披露的形式,不应看作是对其他实施例的排除,而可用于各种其他组合、修改和环境,并能够在本文所述申请构想范围内,通过上述教导或相关领域的技术或知识进行改动。而本领域人员所进行的改动和变化不脱离本申请的精神和范围,则都应在本申请所附权利要求的保护范围内。
Claims (6)
1.一种具有高硬度膜层结构的树脂镜片,其特征在于,包括:
树脂基片;
涂覆于所述树脂基片的加硬液膜层,所述加硬液膜层至少浸涂4层;
镀制于所述加硬液膜层上的二氧化硅膜层;
镀制于所述二氧化硅膜层上的硝基纤维素膜层,所述硝基纤维素膜层含氮量低于15%;
镀制于所述硝基纤维素膜层上的五氧化铌膜层与氧化铝膜层组合的复合膜层。
2.根据权利要求1所述的高硬度膜层结构的树脂镜片,其特征在于,其中所述复合膜层至少具有3层的所述五氧化铌膜层和2层的所述氧化铝膜层,且所述五氧化铌膜层与所述氧化铝膜层相互交替。
3.根据权利要求1所述的高硬度膜层结构的树脂镜片,其特征在于,其中所述加硬液膜层设置为有机硅。
4.根据权利要求1所述的高硬度膜层结构的树脂镜片,其特征在于,其中所述二氧化硅膜层厚度为20μm~200μm。
5.根据权利要求1所述的高硬度膜层结构的树脂镜片,其特征在于,其中所述复合膜层厚度为10μm~300μm。
6.一种根据权利要求1~7任一项所述具有高硬度膜层结构的树脂镜片的制备方法,其特征在于,包括:
步骤a:树脂固化成型出树脂基片;
步骤b:将树脂基片夹持放入1号加硬液槽浸泡55s~60s清洗,成型出第一层加硬液膜层,糖度为17%~21%,温度为60℃±2℃;然后放入2号清水槽中清洗30s;取出夹持放入3号加硬液槽浸泡55s~60s,成型出第二层加硬液膜层,温度为60℃±2℃;然后放入4号清水槽中清洗30s;取出夹持放入5号加硬液槽浸泡55s~60s,成型出第三层加硬液膜层,糖度为17%~21%,温度为60℃±2℃;然后放入6号纯水槽清洗40s;取出夹持放入7号加硬液槽浸泡55s~60s,成型出第四层加硬液膜层,循环升温至45℃;然后放入8号空槽清水喷淋60s;取出烘干;
步骤c:在真空镀膜机内,采用真空镀膜工艺,在步骤b得到的树脂基片表面镀制二氧化硅膜层;
步骤d:将溅射室的气压抽至6.0×10-4Pa以下,通入纯度为99.999%的氩气,流量控制为10sccm,溅射室气压保持在0.25Pa,镀制硝基纤维素膜层;
步骤e:增加气压至3×10-3Pa,控制温度为45~65℃,镀制五氧化铌膜层与氧化铝膜层组合的复合膜层。
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