CN112029399B - 一种防雾涂料及其制备方法 - Google Patents

一种防雾涂料及其制备方法 Download PDF

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CN112029399B
CN112029399B CN202010822372.8A CN202010822372A CN112029399B CN 112029399 B CN112029399 B CN 112029399B CN 202010822372 A CN202010822372 A CN 202010822372A CN 112029399 B CN112029399 B CN 112029399B
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Abstract

一种防雾涂料，以重量份数计算，由以下成分制成：亲水氨基甲酸酯材料60‑70份、固化剂10‑15份、有机硅消泡剂0.005‑0.010份、流平剂0.01‑0.05份、润湿剂5‑10份、溶剂50‑60份、硅烷偶联剂0.05‑0.06份。所述防雾涂料具有优秀的防雾性及净化空气功能，它不仅可以有效防止玻璃表面遇到温差产生雾化，而且还可以净化室内周围环境空气，对于甲醛、异味及细菌均具有一定的中和和消灭功能。

Description

一种防雾涂料及其制备方法
技术领域
本发明属于涂料技术领域，具体涉及一种防雾涂料及其制备方法。
背景技术
基于纳米二氧化钛、二氧化硅的抗压防雾膜，是一种贴在室内玻璃上的一种高分子保护膜，由于此类材料，具有优秀的防雾性及净化空气功能，它不仅可以有效防止玻璃表面遇到温差产生雾化，而且还可以净化室内周围环境空气，对于甲醛、异味及细菌均具有一定的中和消灭功能，此外，由于此款防雾膜基材所使用的是高强度类聚酯基材，此类基材可以极大限度的减少玻璃破碎时的碎片飞散，减少玻璃的隐性伤害，以保障人身安全。因此有必要开发一种防雾涂料，用于生产防雾膜。
发明内容
本发明的目的在于提供一种防雾涂料及其制备方法，所述防雾涂料具有优秀的防雾性及净化空气功能，它不仅可以有效防止玻璃表面遇到温差产生雾化，而且还可以净化室内周围环境空气，对于甲醛、异味及细菌均具有一定的中和消灭功能。
本发明所述防雾涂料包括四层，第一层为抗压防雾层，第二层为聚对苯二甲酸乙二醇酯薄膜层，第三层为胶黏剂层，第四层为离合膜层。
本发明所述防雾涂料，以重量份数计算，由以下成分制成：
亲水氨基甲酸酯材料60-70份、固化剂10-15份、有机硅消泡剂0.005-0.010份、流平剂0.01-0.05份、润湿剂5-10份、溶剂50-60份、硅烷偶联剂0.05-0.06份。
其中所述的亲水氨基甲酸酯材料由如下方法制备：
（1）2.0mol一乙醇胺和0.6g催化剂氧化锂加入反应器中，氮气保护，连续搅拌，加热至60℃，滴加176g(2.0mol)碳酸乙烯酯，保温反应，直至一乙醇胺消耗完；
（2）1mol步骤（1）的产物和3毫升2.5％氢氧化锂甲醇溶液加入反应器中，安装回流冷凝器，加入4-6mol的丙烯酸，再加入2-3mol的纳米二氧化钛连续搅拌，并加热至115-120℃，连续搅拌反应4小时，最后加入氢氧化钠调节pH值至中性，甲醇收集蒸出。
步骤（2）中的丙烯酸要过量，是因为最后与氢氧化钠生成的丙烯酸钠，在后续的涂料配方中你可以起到分散剂的作用。
所述的固化剂为六亚甲基二异氰酸酯。
所述的有机硅消泡剂为DF-2953。
所述的流平剂为丙烯酸类流平剂。
所述的硅烷偶联剂为KH550。
所述的溶剂为乙酸乙酯。
本发明所述防雾涂料的制备方法如下：
(1)在搅拌釜内加入1/2的溶剂，在搅拌状态下依次加入消泡剂、亲水氨基甲酸酯材料，2500-3000转/分下搅拌1-2小时，得到组分A。
(2)将另外1/2的溶剂、流平剂、润湿剂和硅烷偶联剂混合搅拌均匀，得到组分B；
(3)将固化剂和组分B加入组分A中，边搅拌边投料，2000-3000转/分下分散1-2小时，得到抗压防雾层涂料。
本发明的有益效果如下：所述防雾涂料具有优秀的防雾性及净化空气功能，它不仅可以有效防止玻璃表面遇到温差产生雾化，而且还可以净化室内周围环境空气，对于甲醛、异味及细菌均具有一定的中和消灭功能。
具体实施方式
实施例1
抗压防雾层配方：
亲水氨基甲酸酯材料65份、六亚甲基二异氰酸酯12份、消泡剂DF-29530.008份、丙烯酸类流平剂金团KEPERSURF-1570.04份、润湿剂PetroAA6份、溶剂50份，硅烷偶联剂KH5500.05份，其中溶剂为乙酸乙酯。
其中亲水氨基甲酸酯材料制备方法如下：
（1）2.0mol一乙醇胺和0.6g催化剂氧化锂加入反应器中，氮气保护，连续搅拌，加热至60℃，滴加176g碳酸乙烯酯，保温反应，直至一乙醇胺消耗完；
（2）1mol步骤（1）的产物和3毫升2.5％氢氧化锂甲醇溶液加入反应器中，安装回流冷凝器，加入6mol的丙烯酸，再加入3mol的纳米二氧化钛连续搅拌，并加热至115-120℃，连续搅拌反应4小时，最后加入氢氧化钠调节pH值至中性，甲醇收集蒸出。
其中抗压防雾层涂料的制备方法如下：
(1)在搅拌釜内加入1/2的溶剂，在搅拌状态下依次加入消泡剂、亲水氨基甲酸酯材料，3000转/分下搅拌2小时，得到组分A。
(2)将另外1/2的溶剂、流平剂、润湿剂和硅烷偶联剂混合搅拌均匀，得到组分B；
(3)将固化剂和组分B加入组分A中，边搅拌边投料，2000转/分下分散2小时，得到抗压防雾层涂料。
聚对苯二甲酸乙二醇酯薄膜层的配方如下：
聚对苯二甲酸乙二醇酯100份、抗氧剂10101份，钛酸酯偶联剂3份；成核剂二氧化硅0.6份、耐紫外光老化剂UV5710.5份。
聚对苯二甲酸乙二醇酯薄膜层的制备方法如下：
（1）将各物料按比例称好，放入高速混合机中混合均匀，混合时间7分钟，混合转速1100转/分钟，然后放出物料；
（2）将上述混配好的物料投入到双螺杆挤出机中挤出片材，然后进行四辊压延，压延温度为250℃，然后在190℃范围内双向拉伸，即得所述聚对苯二甲酸乙二醇酯薄膜层,膜厚为15μm。
所述防雾涂料的制备方法如下：
（1）将抗压防雾层涂料上机涂布，基材为聚对苯二甲酸乙二醇酯薄膜层；
（2）然后上胶二甲基硅油，附上离合膜即可。
其中，聚对苯二甲酸乙二醇酯薄膜层的厚度为15μm，抗压防雾层的厚度为20μm，胶黏剂层的厚度为10μm，离合膜层的厚度为10μm。
实施例1的技术性能指标如下：
1）剥离力：≥600-900gf/25mm；
2）厚度：70±2um；
3）透光率：≥90%；
4）雾度：≤1.0；
5）水滴角：≤15°且液面快速均匀摊开，经与70℃以上的水蒸气接触5S再分离（往返10次）；
6）耐磨性≥100次（0000#钢丝绒+1KG砝码）；
7）气味：无；
8）空气净化相关指数（来源于-广东省微生物分析检测中心）
9）甲醛去除率：95.9%；
10)大肠杆菌杀菌率：12.9%；
11)金黄色葡萄球菌杀菌率：12.7%；
12)白色念珠球菌杀菌率：18.96%；
13)铜绿假单胞菌杀菌率：15.30%。
对比例1
与实施例1的唯一不同点在于，亲水氨基甲酸酯材料的制备过程中丙烯酸不过量，后续加入等量的丙烯酸钠分散剂，所得涂层水滴角为26°。
对比例2
与实施例1的唯一不同点在于，涂层中的纳米二氧化钛在制备涂料时加入，而不是制备亲水氨基甲酸酯材料时加入，雾度为11。

Claims (1)

1.一种防雾涂料，其特征在于，以重量份数计算，由以下成分制成：
亲水氨基甲酸酯材料65份、六亚甲基二异氰酸酯12份、消泡剂DF-29530 .008份、丙烯酸类流平剂金团KEPERSURF-1570.04份、润湿剂PetroAA6份、溶剂50份，硅烷偶联剂KH5500.05份，其中溶剂为乙酸乙酯；
所述的亲水氨基甲酸酯材料由如下方法制备：
（1）2.0mol一乙醇胺和0 .6g催化剂氧化锂加入反应器中，氮气保护，连续搅拌，加热至60℃，滴加176g碳酸乙烯酯，保温反应，直至一乙醇胺消耗完；
（2）1mol步骤（1）的产物和3毫升2.5％氢氧化锂甲醇溶液加入反应器中，安装回流冷凝器，加入6mol的丙烯酸，再加入3mol的纳米二氧化钛连续搅拌，并加热至115-120℃，连续搅拌反应4小时，最后加入氢氧化钠调节pH值至中性，甲醇收集蒸出。
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Citations (3)

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