CN104312419B - 一种具有抗菌功能的紫外光固化玻璃涂料及其制备方法 - Google Patents
一种具有抗菌功能的紫外光固化玻璃涂料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种具有抗菌效果的紫外光固化玻璃涂料,该紫外光固化抗菌玻璃涂料其特征在于由以下质量百分比的原料制备而成:聚氨酯丙烯酸树脂34-40%,环氧丙烯酸树脂34-40%,活性稀释剂20-25%,光引发剂2-5%,抗菌剂1-3%。本发明紫外光固化抗菌玻璃涂料固化速度快,具有很强的附着力,耐酸,耐盐,同时具有良好的抗菌能力,抑菌效果明显,可以用作家庭及公共场所玻璃材料的无菌表面处理。
Description
技术领域
本发明涉及紫外光固化涂料,具体是一种具有抗菌功能的紫外光固化玻璃涂料及其制备方法。
背景技术
随着人们生活水平的提高,人们的环境卫生意识日益增强。尤其是在幼儿园、医院等公共场所,环境中细菌的存在,加大了人们患病的几率。玻璃作为一种重要的建筑材料,其上附着的菌类如大肠杆菌,金黄色葡萄球菌等,会对人们身体健康产生重大威胁,为了预防细菌和病菌的感染,需要研发一种具有抗菌功能的玻璃涂料。紫外光固化涂料是一种具有低VOC排放、固化速度快、适合流水线生产的新型环保节能型涂料。研发具有抗菌功能的玻璃涂料,即在保证其固有的平整光滑、透明度好、附着力强、耐酸碱盐的基础上,制备具有抗菌功能的紫外光固化玻璃涂料具有重要的社会意义和经济价值。
近年紫外光固化涂料虽然发展很快,但由于玻璃表面非常光滑,如果不添加附着力促进剂等助剂,一般涂料很难在其表面附着,尽管现有的专利很多,但综合性能优异的市售紫外光固化玻璃涂料产品不多,兼备抗菌功能的产品更少。
发明内容
本发明目的在于提供一种具有抗菌性功能的紫外光固化玻璃涂料,且该涂料附着力、硬度以及耐酸碱盐等性能良好。
本发明提供的一种具有抗菌功能的紫外光固化玻璃涂料,组分按重量百分比计:二官能脂肪族聚氨酯丙烯酸树脂34-40%,二官能改性环氧丙烯酸树脂34-40%,活性稀释剂20-25%,光引发剂2-5%,抗菌剂1-3%;
所述活性稀释剂为1,6-己二醇二丙烯酸酯(HDDA);
所述光引发剂为2-羟基-2-甲基-1-苯基丙酮(1173)或1-羟基环己基苯基甲酮(184);
所述抗菌剂为2-辛基-4-异噻唑啉-3-酮(OIT)或碘丙炔基正丁胺甲酸酯(IPBC)。
本发明优选组分按重量百分比计:二官能脂肪族聚氨酯丙烯酸树脂40%,二官能改性环氧丙烯酸树脂34%,活性稀释剂1,6-己二醇二丙烯酸酯(HDDA)20%,光引发剂2-羟基-2-甲基-1-苯基丙酮(1173)4%,抗菌剂2-辛基-4-异噻唑啉-3-酮(OIT)或碘丙炔基正丁胺甲酸酯(IPBC)2%。
本发明提供的一种具有抗菌效果的紫外光固化玻璃涂料的制备方法,具体步骤为:
(1)按上述组分配比,将二官能脂肪族聚氨酯丙烯酸树脂、二官能改性环氧丙烯酸树脂、活性稀释剂、光引发剂、抗菌剂加入反应釜中搅拌,加热至45-55℃,搅拌10-15分钟,使之分散均匀透明;
(2)冷却到室温后,利用超声波脱气3-5分钟后,静止5-10分钟,即得均匀透明的具有抗菌效果的紫外光固化玻璃涂料。
与现有技术相比,本发明具有的有益效果:本发明制备的紫外光固化玻璃涂料,流平性好,不需要添加流平剂;附着力强,无需添加附着力促进剂;耐酸、盐、稀碱;本发明添加了IPBC或OIT抗菌成分,固化成膜后具有良好的抗菌效果,抗大肠杆菌、金黄色葡萄球菌率(24h菌落法)可以达到99%以上,抑菌圈效果明显;配方中不含易挥发的有机溶剂,对环境友好,可用作公共场所玻璃基材的各种无菌表面处理;涂料制备方法简单,具有良好的应用前景。
附图说明
图1实施例1与比较例涂料性能比较
图2抑菌圈测试法测试涂层抗菌性能实验
图3涂层抗大肠杆菌的抗菌性实验
图4涂层抗金色葡萄球菌的抗菌性实验
具体实施方式
本发明所使用的试剂:二官能脂肪族聚氨酯丙烯酸树脂、二官能改性环氧丙烯酸树脂、活性稀释剂1,6-己二醇二丙烯酸酯(HDDA),均为中山市千枼化工厂生产;光引发剂:2-羟基-2-甲基-1-苯基丙酮(1173)、1-羟基环己基苯基甲酮(184)、4-苯甲酰基-4’-甲基-二苯硫醚(BMS),均为北京英力科技公司生产;抗菌剂:上海晶纯生化科技股份有限公司生产。
实施例1
组分配方:
制备方法:
将二官能脂肪族聚氨酯丙烯酸树脂、二官能改性环氧丙烯酸树脂、活性稀释剂1,6-己二醇二丙烯酸酯、光引发剂1173、抗菌剂IPBC加入反应釜中搅拌,加热至45-55℃,搅拌10-15分钟,使之分散均匀透明;冷却到室温后,利用超声波脱气3-5分钟后,静止5-10分钟,即得均匀透明的具有抗菌效果的紫外光固化玻璃涂料。
将该涂料用涂布器涂在已经准备好的玻璃板上,膜厚度为75um,然后快速以每分钟5米的速度(大约5秒钟的光照时间)通过紫外固化仪进行固化。
实施例2
组分配方:
制备方法:同实施例1。
实施例3
组分配方:
制备方法:同实施例1。
实施例4
组分配方:
制备方法:同实施例1。
比较例1
组分配方:
制备方法:同实施例1。
比较例2
组分配方:
制备方法:同实施例1。
上述实施例和比较例组分配方成膜实验所具有的性能比较如表1。
表1实施例涂膜性能
注:固化时间:指干或棉球法。附着力(级数):划格法、且胶带粘拉不脱落;涂膜硬度:铅笔测量法;浸泡:室温静置72h.
从上表的测试结果可以看出:本发明提供的具有抗菌效果的紫外光固化玻璃涂料配方,流平性好,可形成均匀的涂层,不需要添加流平剂;固化速度快,附着力强,无需添加附着力促进剂;耐酸、盐、稀碱;特别是实施例1固化成膜后在高温38℃的室外暴晒30天无变化;而且制备方法简单,具有良好的应用前景。实施例1与比较例1、2成膜性能比较见图1。图1中比较例1成膜表面泛花;比较例2附着力差,胶带粘拉有脱落。
实施例7(抗菌测试—抑菌圈法)
实验配方:
具体步骤如下:
(1)平行称量两分环氧丙烯酸树脂、聚氨酯丙烯酸树脂、活性稀释剂、光引发剂加入反应釜中,然后在其中的反应釜(1)中加入2%的抗菌剂碘丙炔基正丁胺甲酸酯(IPBC),在其中的反应釜(2)中加入3%的抗菌剂碘丙炔基正丁胺甲酸酯(IPBC),然后同时将上述两个反应釜中的加入料搅拌,加热至45-55℃,搅拌10-15分钟,使之分散均匀透明;冷却到室温后,利用超声波脱气3-5分钟后,静止5-10分钟,即得均匀透明的涂料备用。
(2)将已灭菌并冷至50℃左右的牛肉膏蛋白胨琼脂培养基倒入无菌平皿,培养基厚度大约为3mm水平放置待凝固。
(3)将以上两个反应釜中的透明涂料分别在Whatman934-AH滤纸上进行双涂层,然后以每分钟4米的速度(大约7秒钟的光照时间)通过紫外固化仪进行固化,之后将涂层滤纸切成1英寸直径大小进行使用,同时切相同大小的滤纸做空白对照。
(4)将上述每个样品系列放入步骤(2)中已凝固的无菌平皿中,为防止滤纸太干,抗菌剂作用被抑制,在滤纸上滴加一滴75%的乙醇。然后用无菌吸管吸取0.2ml培养12h的大肠杆菌菌液加到无菌平皿中,用无菌三角涂棒涂布均匀。将平皿培养基置于37℃温箱中培养24小时后,观察效果,测试重复三次,结果见附图2。由图2可知,抗菌剂的加入量以2%为宜。
实施例8(抗菌测试—抑菌圈法)
实验配方:
具体步骤如下:
(1)平行称量三分环氧丙烯酸树脂、聚氨酯丙烯酸树脂、活性稀释剂、光引发剂(0.32g)加入反应釜中,然后在其中的反应釜(1)中加入抗菌剂2-辛基-4-异噻唑啉-3-酮(OIT),在其中的反应釜(2)中加入抗菌剂碘丙炔基正丁胺甲酸酯(IPBC),反应釜(3)中不加抗菌剂,做对比备用。然后同时将上述三个反应釜中的加入料搅拌,加热至45-55℃,搅拌10-15分钟,使之分散均匀透明;冷却到室温后,利用超声波脱气3-5分钟后,静止5-10分钟,即得均匀透明的涂料备用。
(2)将已灭菌并冷至50℃左右的牛肉膏蛋白胨琼脂培养基倒入无菌平皿,培养基厚度大约为3mm水平放置待凝固。以无菌操作将灭菌的不锈钢小管(外径为10毫米、孔径与孔距均为9毫米,管的两端要光滑),放置在培养基上打四个孔,将孔中的培养基用针头挑出,并以火焰封底,使培养基能充分的与平皿融合(以防药液渗漏,影响结果)。
(3)在上述打好的三个孔中分别加入(1)中三个反应釜中的透明的涂料0.2ml,快速以每分钟5米的速度(大约5秒钟的光照时间)通过紫外固化仪进行固化。另一孔加入无菌水作对比。
(4)用无菌吸管吸取0.2ml培养12h的大肠杆菌菌液,分别加到上述平皿中,用无菌三角涂棒涂布均匀。将平皿培养基置于37℃温箱中培养24小时后,观察效果,测试重复三次,结果见附图3。
(5)用无菌吸管吸取0.2ml培养12h的金色葡萄球菌,分别加到上述平皿中,用无菌三角涂棒涂布均匀。将平皿培养基置于37℃温箱中培养24小时后,观察效果,测试重复三次,结果见附图4。
由图3、4可知,本发明紫外光固化玻璃涂料具有较理想的抑菌圈,抗菌作用明显。
Claims (1)
1.一种具有抗菌功能的紫外光固化玻璃涂料,其特征在于原料组分配比和制备方法:
所述原料组分配比,按重量百分比计:二官能脂肪族聚氨酯丙烯酸树脂40%,二官能改性环氧丙烯酸树脂34%,活性稀释剂1,6-己二醇二丙烯酸酯20%,光引发剂2-羟基-2-甲基-1-苯基丙酮4%,抗菌剂2-辛基-4-异噻唑啉-3-酮或3-碘-2-丙炔基正丁胺甲酸酯2%;
所述制备方法,步骤为:
(1)将二官能脂肪族聚氨酯丙烯酸树脂、二官能改性环氧丙烯酸树脂、活性稀释剂、光引发剂、抗菌剂加入反应釜中搅拌,加热至45-55℃,搅拌10-15分钟;
(2)冷却到室温后,利用超声波脱气3-5分钟后,静止5-10分钟,即得具有抗菌效果的紫外光固化玻璃涂料。
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