CN108559340A - 乳胶漆的制备方法 - Google Patents

乳胶漆的制备方法 Download PDF

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CN108559340A
CN108559340A CN201810492342.8A CN201810492342A CN108559340A CN 108559340 A CN108559340 A CN 108559340A CN 201810492342 A CN201810492342 A CN 201810492342A CN 108559340 A CN108559340 A CN 108559340A
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朱力
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Abstract

本发明公开了一种乳胶漆的制备方法，将苯丙乳液、聚氨酯增稠剂、二羟甲基甲酸、正磷酸铵、亚硝酸钠依次加入浆料中，搅拌得到乳胶漆。二丁基马来酸锡、正磷酸铵的引入能够增强涂膜的网络结构效应，进而增大涂膜的交联度，从而改善了涂膜的硬度、强度、耐水性、耐化学品性等性能，而且表干时间短。本发明提供一种制备过程简单，且彻底摒弃了有机助溶剂的使用，环保无污染，达到真正意义上的环境友好的无VOC乳胶漆及其制备方法。

Description

乳胶漆的制备方法
技术领域
本发明属于粘接剂领域，具体涉及一种乳胶漆。
背景技术
以水作为溶剂的乳胶漆，主要由水、乳液、颜填料、和各种助剂组成，它具有无毒、无污染、耐水、耐擦洗等优点而被消费者所青睐，是目前应用范围比较广的装饰材料之一现有乳胶漆的主要缺点是使用时施工复杂，并且其耐候性、附着力、耐洗刷性和耐久性差，主要原因是其配方中缺少重要的功能性助剂材料。
发明内容
本发明的目的是提供一种乳胶漆的制备方法，提供一种制备过程简单，且彻底摒弃了有机助溶剂的使用，环保无污染，达到真正意义上的环境友好的无VOC乳胶漆及其制备方法。
为达到上述发明目的，本发明采用如下技术方案：
一种乳胶漆的制备方法，包括以下步骤，搅拌下，将苯丙乳液、聚氨酯增稠剂、二羟甲基甲酸、正磷酸铵、亚硝酸钠依次加入浆料中，搅拌得到乳胶漆；所述浆料的制备方法为，向水性醇酸树脂中加入二丁基马来酸锡和丙二醇，于70℃下搅拌反应1小时；再加入硅灰石、硅酸铝，继续搅拌3小时，再加入二(丙烯酸)-1,6-己二醇酯、己烯基双硬脂酰胺，继续搅拌0.5小时，然后加入丙烯酸异辛脂、甲基羟乙基纤维素，继续搅拌15分钟后再加入水，然后于室温搅拌2小时，得到浆料。
本发明还公开了一种浆料的制备方法，为向水性醇酸树脂中加入二丁基马来酸锡和丙二醇，于70℃下搅拌反应1小时；再加入硅灰石、硅酸铝，继续搅拌3小时，再加入二(丙烯酸)-1,6-己二醇酯、己烯基双硬脂酰胺，继续搅拌0.5小时，然后加入丙烯酸异辛脂、甲基羟乙基纤维素，继续搅拌15分钟后再加入水，然后于室温搅拌2小时，得到浆料。
本发明在乳胶漆配方中添加了硅灰石、硅酸铝，结合二羟甲基甲酸、正磷酸铵使漆膜可以长期抑制细菌等微生物的生长，提高了漆膜的美观和使用性能，使涂膜的装饰功能更持久；丁基马来酸锡减少了常规增稠剂的用量，降低了成本。
上述技术方案中，所述苯丙乳液的固含量为65％；水性醇酸树脂的数均分子量为2000～5000；硅灰石的粒径为300～350纳米；硅酸铝的粒径为500～550纳米。
上述技术方案中，苯丙乳液、聚氨酯增稠剂、二羟甲基甲酸、正磷酸铵、亚硝酸钠、浆料的质量比为100∶5∶12∶5∶2∶50；水性醇酸树脂、二丁基马来酸锡、丙二醇、硅灰石、硅酸铝、二(丙烯酸)-1,6-己二醇酯、己烯基双硬脂酰胺、丙烯酸异辛脂、甲基羟乙基纤维素、水的质量比为100∶35∶52∶35∶20∶10∶15∶25∶45∶162。
上述技术方案中，搅拌得到乳胶漆时的搅拌速度为1500rpm；室温搅拌2小时时的搅拌速度为3500rpm。其余搅拌为常规搅拌，通过两个搅拌速度限定可提高配方分散性能。
上述乳胶漆的制备方法制备的乳胶漆。
本发明在制备时不需借助任何有机助溶剂和小分子乳化剂，通过混合亲水性树脂和固化剂，可有效提高体系固含量，提高涂膜的固化速度，降低产品成本。二丁基马来酸锡、二(丙烯酸)-1,6-己二醇酯、己烯基双硬脂酰胺的引入能够增强涂膜的网络结构效应，进而增大涂膜的交联度，从而改善了涂膜的硬度、强度、耐水性、耐化学品性等性能，而且表干时间短，成膜性能可与溶剂型产品媲美，具有良好的社会和经济效益。
与现有技术相比本发明的有益效果为：
本发明所提供的水性乳胶漆，不含有害挥发性溶剂，有利于环境保护和使用者的身心健康。本发明提供的水性漆的柔韧性极强，在受到外力的作用下，不易被受损。本发明提供的漆附着力强、分散性能好，具有很好的成膜性能，不易开裂，水性漆中几乎不含挥发性溶剂，使用时安全性高。
本发明提供一种乳胶漆有效地节约了能源，同时比传统的油性漆更加环保、安全，对环境污染小，不会影响所包装物的安全、卫生；涂布后形成的漆层坚韧，光亮度高，附着力强，而且印刷适应性广，后续印刷加工性能极佳。
本发明为单组份，稀释剂为水，成本低、环保，稀释后直接喷涂施工，施工方便，固化温度低，干燥速度快，提高了施工效率，节约了资源，降低了成本。干燥后的涂膜平整、丰满、光亮，具有优良的保光性和保色性，机械性能、耐水、耐腐蚀性优异，涂膜耐油污、耐高温；产品贮存稳定性好，且性价比高，具有优异的装饰效果和防护作用。
具体实施方式
本实施例中，苯丙乳液的固含量为65％；水性醇酸树脂的数均分子量为2000～5000；硅灰石的粒径为300～350纳米；硅酸铝的粒径为500～550纳米。苯丙乳液、聚氨酯增稠剂、二羟甲基甲酸、正磷酸铵、亚硝酸钠、浆料的质量比为100∶5∶12∶5∶2∶50；水性醇酸树脂、二丁基马来酸锡、丙二醇、硅灰石、硅酸铝、二(丙烯酸)-1,6-己二醇酯、己烯基双硬脂酰胺、丙烯酸异辛脂、甲基羟乙基纤维素、水的质量比为100∶35∶52∶35∶20∶10∶15∶25∶45∶162。
实施例一
向水性醇酸树脂中加入二丁基马来酸锡和丙二醇，于70℃下搅拌反应1小时；再加入硅灰石、硅酸铝，继续搅拌3小时，再加入二(丙烯酸)-1,6-己二醇酯、己烯基双硬脂酰胺，继续搅拌0.5小时，然后加入丙烯酸异辛脂、甲基羟乙基纤维素，继续搅拌15分钟后再加入水，然后于室温3500rpm搅拌2小时，得到浆料。
实施例二
一种乳胶漆的制备方法，包括以下步骤，搅拌下，将苯丙乳液、聚氨酯增稠剂、二羟甲基甲酸、正磷酸铵、亚硝酸钠依次加入实施例一的浆料中，1500rpm搅拌得到乳胶漆，表干时间26分钟，剥离强度为205N/(2.5cm)，附着力1级，耐磨性8年不脱落，耐盐水(3％氯化钠)650小时，弹性模量0.52MPa。
对比例一
一种乳胶漆的制备方法，包括以下步骤，搅拌下，将苯丙乳液、聚氨酯增稠剂、常规消泡剂、常规流平剂、亚硝酸钠依次加入实施例一的浆料中，1500rpm搅拌得到乳胶漆，表干时间46分钟，剥离强度为168N/(2.5cm)，附着力1级，耐磨性3年不脱落，耐盐水(3％氯化钠)610小时，弹性模量0.46MPa。
苯丙乳液、聚氨酯增稠剂、常规消泡剂、常规流平剂、亚硝酸钠、浆料的质量比为100∶5∶12∶5∶2∶50。
对比例二
一种乳胶漆的制备方法，除了浆料不含有硅灰石、硅酸铝，其他与实施例二一样，得到的乳胶漆表干时间32分钟，剥离强度为188N/(2.5cm)，附着力1级，耐磨性4年不脱落，耐盐水(3％氯化钠)520小时，弹性模量0.33MPa。
500KWh下测试紫外黄变性能，实施例一、对比例一、对比例二的△b分别为0.42、1.99、2.03；实施例一、对比例一、对比例二的的耐洗刷性项目为7100次、4800次、5600次。
经国标方法检测和实际应用证实，产品主要技术指标稳定，具有耐候性好、附着力强、防霉、抑菌、耐洗刷性强、持久水洗复新、耐久性优、施工快捷、方便等优点。
本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。

Claims (10)

1.一种乳胶漆的制备方法，其特征在于，包括以下步骤，搅拌下，将苯丙乳液、聚氨酯增稠剂、二羟甲基甲酸、正磷酸铵、亚硝酸钠依次加入浆料中，搅拌得到乳胶漆；所述浆料的制备方法为，向水性醇酸树脂中加入二丁基马来酸锡和丙二醇，于70℃下搅拌反应1小时；再加入硅灰石、硅酸铝，继续搅拌3小时，再加入二(丙烯酸)-1,6-己二醇酯、己烯基双硬脂酰胺，继续搅拌0.5小时，然后加入丙烯酸异辛脂、甲基羟乙基纤维素，继续搅拌15分钟后再加入水，然后于室温搅拌2小时，得到浆料。
2.根据权利要求1所述乳胶漆的制备方法，其特征在于，所述苯丙乳液的固含量为65％。
3.根据权利要求1所述乳胶漆的制备方法，其特征在于，水性醇酸树脂的数均分子量为2000～5000。
4.根据权利要求1所述乳胶漆的制备方法，其特征在于，硅灰石的粒径为300～350纳米。
5.根据权利要求1所述乳胶漆的制备方法，其特征在于，硅酸铝的粒径为500～550纳米。
6.根据权利要求1所述乳胶漆的制备方法，其特征在于，苯丙乳液、聚氨酯增稠剂、二羟甲基甲酸、正磷酸铵、亚硝酸钠、浆料的质量比为100∶5∶12∶5∶2∶50。
7.根据权利要求1所述乳胶漆的制备方法，其特征在于，水性醇酸树脂、二丁基马来酸锡、丙二醇、硅灰石、硅酸铝、二(丙烯酸)-1,6-己二醇酯、己烯基双硬脂酰胺、丙烯酸异辛脂、甲基羟乙基纤维素、水的质量比为100∶35∶52∶35∶20∶10∶15∶25∶45∶162。
8.根据权利要求1所述乳胶漆的制备方法，其特征在于，搅拌得到乳胶漆时的搅拌速度为1500rpm。
9.根据权利要求1所述乳胶漆的制备方法，其特征在于，室温搅拌2小时时的搅拌速度为3500rpm。
10.根据权利要求1所述乳胶漆的制备方法制备的乳胶漆。
CN201810492342.8A 2018-05-22 2018-05-22 乳胶漆的制备方法 Pending CN108559340A (zh)

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