CN112500934A - 一种中性的半水基液晶玻璃清洗剂及其清洗方法 - Google Patents
一种中性的半水基液晶玻璃清洗剂及其清洗方法 Download PDFInfo
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Abstract
本发明揭示了一种中性的半水基液晶玻璃清洗剂，所述清洗剂的pH为7~7.5，其组成（质量百分比）为：50％～70％不饱和烃，15％～45％醇醚溶剂，0.5％～2.5％有机溶剂，8％～25％非离子表面活性剂，余量为去离子水。本发明的有益效果为：本发明的清洗剂不含苯、氯、重金属等物质，温和无刺激，无腐蚀性，符合绿色环保要求。且对液晶光学玻璃清洗效果好，去污效率高，同时对清洗后玻璃进行了信赖性测试，该清洗剂清洗玻璃后不影响产品(玻璃)的质量。
Description
技术领域
本发明涉及一种清洗剂，尤其涉及一种中性的半水基液晶玻璃清洗剂及其清洗方法。
背景技术
液晶可分为热致液晶、溶致液晶。热致液晶是指由单一化合物或由少数化合物的均匀混合物形成的液晶。通常在一定温度范围内才显现液晶相的物质。典型的长棒形热致液晶的分子量一般在200～500g/mol左右。溶致液晶是一种包含溶剂化合物在内的两种或多种化合物形成的液晶，是在溶液中溶质分子浓度处于一定范围内时出现液晶相，它的溶剂主要是水或其它极性分子液剂。这种液晶中引起分子排列长程有序的主要原因是溶质与溶剂分子之间的相互作用，而溶质分子之间的相互作用是次要的。当通电时导通，排列变得有秩序，使光线容易通过；不通电时排列混乱，阻止光线通过。让液晶如闸门般地阻隔或让光线穿透。从技术上简单地说，液晶面板包含了两片相当精致的无钠玻璃素材，称为Substrates，中间夹着一层液晶。当光束通过这层液晶时，液晶本身会排排站立或扭转呈不规则状，因而阻隔或使光束顺利通过。大多数液晶都属于有机复合物，由长棒状的分子构成。在自然状态下，这些棒状分子的长轴大致平行。将液晶倒入一个经精良加工的开槽平面，液晶分子会顺着槽排列，所以假如那些槽非常平行，则各分子也是完全平行的。液晶是一种介于晶体状态和液态状态之间的中间物质。它兼有液体和晶体的某些特点，表现出一些独特的性质。
玻璃经过液晶灌注工艺后，表面残留有部分液晶残液等污垢牢固的附着在玻璃表面，特别是在封胶口附近，液晶的残留若不去除将对后续工序产生较大影响。现有技术一般采用以下三种进行处理：(1)直接用清水刷洗。但液晶不直接溶于水，此方法费时费力，且刷洗不干净；(2)采用市面上的强碱性药水加水稀释后刷洗。但此方法对液晶残液等污垢的去除效果不佳，而且对皮肤、工件、金属设备具有较大的腐蚀性，不适合使用；(3)玻璃灌注液晶后不做处理，直接在超声波前加入浸泡工艺初步去除表面大部分的污垢，但此方法成本更高，且玻璃表面污垢干结后更难清洗。
发明内容
鉴于现有技术存在上述缺陷，本发明的目的在于提供一种中性的半水基液晶玻璃清洗剂及其清洗方法。
本发明的目的，将通过以下技术方案得以实现：
一种中性的半水基液晶玻璃清洗剂，所述清洗剂的pH为7～7.5，其组成(质量百分比)为：
优选地，所述清洗剂的组成和重量份数为，
优选地，所述不饱和烃为异构碳氢溶剂、烯烃、直链碳氢溶剂中的一种或一种以上组合。
优选地，所述不饱和烃为直连烯烃。
优选地，所述不饱和烃为十二烯烃或十四烯烃中的一种或两种的组合。
优选地，所述醇醚溶剂为二乙二醇丁醚、乙二醇丁醚、乙二醇乙醚、乙二醇乙醚醋酸酯与乙二醇甲醚醋酸酯中的一种或一种以上的组合。所述醇醚溶剂可以起到辅助清洗作用，对一些表面活性剂难以去除的有机类脏污起到很好的效果，同时能减少表面活性剂的用量。
优选地，所述非离子表面活性剂为烷基酚聚氧乙烯醚、烷基磺酸盐类或直链烷基苯磺酸盐中一种或一种以上的组合。所述非离子表面活性剂具有降低表面张力、增加渗透性的作用，同时可以增加清洗剂的清洗能力。
优选地，所述非离子表面活性剂为质量比为1：(2～3)的烷基酚聚氧乙烯醚和直链烷基苯磺酸盐的组合。
优选地，所述有机溶剂为苯酚、方酸、油醇、1,1,1-三氟-2,4-戊二酮中的一种或一种以上组合。优选地，所述有机溶剂为油醇，用于提升对一些特殊油渍的溶解力，并且可以降低清洗剂的泡沫，减少清洗剂在玻璃表面再次附着的可能性。
优选地，以上任意一种所述的一种中性的半水基液晶玻璃清洗剂的使用方法，按比例配置清洗剂，并用水进行1～20倍的稀释，在超声波清洗仪中，对液晶光学玻璃进行15～30秒清洗。
本发明的有益效果为：本发明的清洗剂不含苯、氯、重金属等物质，温和无刺激，无腐蚀性，符合绿色环保要求。且对液晶光学玻璃清洗效果好，去污效率高，同时对清洗后玻璃进行了信赖性测试，该清洗剂清洗玻璃后不影响产品(玻璃)的质量。
具体实施方式
以下便结合实施例，对本发明的具体实施方式作进一步的详述，以使本发明技术方案更易于理解、掌握。
实施例1
一种中性的半水基液晶玻璃清洗剂，包括以下成分：
| 异构碳氢溶剂 | 50％ |
| 二乙二醇丁醚 | 15％ |
| 方酸 | 0.7％ |
| 烷基酚聚氧乙烯醚 | 15％ |
| 去离子水 | 余量 |
清洗方法：
按以上按比例配置清洗剂，并用水进行20倍的稀释，在超声波清洗仪中，对液晶光学玻璃进行30秒清洗。
实施例2
一种中性的半水基液晶玻璃清洗剂，包括以下成分：
| C12碳氢溶剂 | 75％ |
| 乙二醇丁醚 | 35％ |
| 苯酚 | 2％ |
| 烷基磺酸钠 | 8％ |
| 去离子水 | 余量 |
其清洗方法如实施例1。
实施例3
一种中性的半水基液晶玻璃清洗剂，包括以下成分：
其清洗方法如实施例1。
实施例4
一种中性的半水基液晶玻璃清洗剂，包括以下成分：
| 十二烯烃 | 50％ |
| 乙二醇乙醚醋酸酯 | 45％ |
| 油醇 | 2％ |
| 直连烷基苯磺酸钠 | 12％ |
| 去离子水 | 余量 |
其清洗方法如实施例1。
对本发明中实施例1-4中的清洗剂在50℃-60℃下对液晶玻璃进行超声波清洗30秒，并通过显微镜进行效果观察，其清洗测试结果如表1所示。
表1：各个实施例的清洗效果表
| 实施例 | 显微镜下观测清洗良品率 |
| 实施例1 | 90％ |
| 实施例2 | 94％ |
| 实施例3 | 92％ |
| 实施例4 | 97％ |
为更好的验证本发明的中性清洗剂与现有技术中碱性和酸性清洗剂的清洗效果，进行了进一步的对比，其中，良品率中仅统计残留液晶、白点等与清洗剂相关的合格率。
本发明尚有多种实施方式，凡采用等同变换或者等效变换而形成的所有技术方案，均落在本发明的保护范围之内。
Claims (10)
1.一种中性的半水基液晶玻璃清洗剂，其特征在于：所述清洗剂的pH为7～7.5，其组成(质量百分比)为：
2.如权利要求1所述的一种中性的半水基液晶玻璃清洗剂，其特征在于：所述清洗剂的组成和重量份数为，
3.如权利要求2所述的一种中性的半水基液晶玻璃清洗剂，其特征在于：所述不饱和烃为异构碳氢溶剂、烯烃、直链碳氢溶剂中的一种或一种以上组合。
4.如权利要求2所述的一种中性的半水基液晶玻璃清洗剂，其特征在于：所述不饱和烃为直连烯烃。
5.如权利要求4所述的一种中性的半水基液晶玻璃清洗剂，其特征在于：所述不饱和烃为十二烯烃或十四烯烃中的一种或两种的组合。
6.如权利要求2所述的一种中性的半水基液晶玻璃清洗剂，其特征在于：所述醇醚溶剂为二乙二醇丁醚、乙二醇丁醚、乙二醇乙醚、乙二醇乙醚醋酸酯与乙二醇甲醚醋酸酯中的一种或一种以上的组合。
7.如权利要求2所述的一种中性的半水基液晶玻璃清洗剂，其特征在于：所述非离子表面活性剂为烷基酚聚氧乙烯醚、烷基磺酸盐类或直链烷基苯磺酸盐中一种或一种以上的组合。
8.如权利要求2所述的一种中性的半水基液晶玻璃清洗剂，其特征在于：所述非离子表面活性剂为质量比为1：(2～3)的烷基酚聚氧乙烯醚和直链烷基苯磺酸盐的组合。
9.如权利要求2所述的一种中性的半水基液晶玻璃清洗剂，其特征在于：所述有机溶剂为苯酚、方酸、油醇、1,1,1-三氟-2,4-戊二酮中的一种或一种以上组合。
10.如权利要求1-9中任意一种所述的一种中性的半水基液晶玻璃清洗剂的清洗方法，其特征在于：按比例配置清洗剂，并用水进行1～20倍的稀释，在超声波清洗仪中对液晶光学玻璃，进行15～30秒清洗。
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