CN105462460B - 一种抗污、耐指纹不锈钢板水性涂料及其制备方法 - Google Patents
一种抗污、耐指纹不锈钢板水性涂料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种抗污、耐指纹不锈钢板水性涂料及其制备方法。由重量百分比的55‑70％羟基改性水性聚酯树脂，8‑15％甲醚化氨基树脂，3‑5％改性硅溶胶，2‑4％中和剂，0.1‑0.3％润湿剂，0‑0.2％流变助剂，0.1‑1.5％消泡剂，0.1‑0.5％流平剂，3‑6％水性聚乙烯蜡和聚四氟乙烯蜡混合浆，1‑3％附着力促进剂，1‑3％纳米无机盐，0.2‑0.5％催化剂，3‑5％助溶剂，1‑8.5％去离子水制备得到。具有优异的抗指纹印迹性能，疏水疏油性能优异，抗指纹涂层水接触角、油接触角大，低滑动角；易于油污滑落；耐磨性，和抗老化性优异。同时环保、健康、方法简单。
Description
技术领域
本发明涉及特种水性涂料材料领域，具体为一种抗污、耐指纹不锈钢板水性涂料涂料及其制备方法。
背景技术
用于加工件的烘烤涂料，基本上采用传统油性烘烤涂料，容易造成对人体严的危害和环境严重的污染，带来安全方面的隐患。现今全世界提倡低碳排放，绿色环保，更须研发水性烘烤涂料。专利CN101215438B公开了一种抗污耐老化不锈钢涂料及其制备方法，这种丙烯酸树脂不锈钢涂料具有优越的耐老化能力和抗紫外性能,但大量的有机溶剂排放，造成严重环境空气污染，在日益严格要求环保政策及整顿下，难以继续生产，急需环保的替代工艺和产品。
发明内容
本发明的目的在于提供一种抗指纹涂层水接触角、油接触角大；低滑动角；易于油污滑落；耐磨性和抗老化性优异的抗污、耐指纹不锈钢板水性涂料。
为实现上述目的，本发明提供一种抗污、耐指纹不锈钢板水性涂料，其特征在于，由如下重量比的成分制备得到，
进一步，由如下重量比的成分制备得到，
进一步，所述中和剂为二甲基乙醇胺。
进一步，所述润湿剂为聚醚改性硅氧烷。
进一步，所述消泡剂为不含有机硅的憎水性固体及破泡聚合物的混合物。
进一步，所述水性聚乙烯蜡和聚四氟乙烯蜡混合浆中水性聚乙烯蜡和聚四氟乙烯蜡的质量比为1:2。
进一步，所述纳米无机盐为纳米二氧化钛、纳米氧化锌、纳米二氧化锆或纳米二氧化硅中的一种或一种以上，所述纳米无机盐颗粒的粒径小于20纳米。
进一步，所述催化剂为磺酸胺化合物。
进一步，所述助溶剂为丙二醇或丁醇或异丙醇。
本发明还提供所述抗污、耐指纹不锈钢板水性涂料的制备方法，其特征在于，步骤为，
按照各原材料所需的配比，将羟基改性水性聚酯树脂加入中和剂调整PH到8.5，再将改性硅溶胶，润湿剂，流变助剂，水性聚乙烯蜡和聚四氟乙烯蜡混合浆，纳米无机盐，助溶剂混合均匀，以1500～2000转/分钟的转速搅拌均匀，再球磨1小时；再在800转/分搅拌下慢慢加入消泡剂，流平剂，催化剂，附着力促进剂，去离子水，搅拌15-30分钟，再加入甲醚化氨基树脂搅拌均匀经过150-200目筛网过滤后即可。
本发明所述羟基改性水性聚酯树脂为55-70％，低于55％，成膜物质不够，影响密度，从而影响整体性能，高于70％，成膜物质过多，表面回粘，固化不良，浪费材料；所述甲醚化氨基树脂所含比例为8-15％，低于8％，硬度过软，高于15％，硬度过高，漆膜脆；助剂催化剂、改性硅溶胶、消泡剂、流平剂都不能超过本发明要求的量，过量(催化剂高于0.5％、改性硅溶胶高于5％、消泡剂高于1.5％、流平剂高于0.5％)则会造成表面瑕疵，过低(催化剂低于0.2％、改性硅溶胶低于3％、消泡剂低于0.1％、流平剂低于0.1％)又失效；所述纳米无机盐颗粒也不能过多，超过3％则下沉，影响涂料稳定性能。
本发明采用硬质耐磨的纳米无机盐使不锈钢板的表面具有玻璃的硬度及耐磨性，使不锈钢制品具有更为优秀的耐污和抗老化性能远高于普通的有机涂层，具有卓越的耐磨损和耐刮擦特性，具有广泛地市场应用情景，采用水溶性聚合物，无VOC排放，环保绿色，符合国家新环保法要求。改性聚酯树脂，高强的附着力，更好的耐酸碱、腐蚀性，优异的保护性能及加工性能
优点体现为：
(1)由于本发明的水性烘烤涂料无苯类有机物，不会对人体健康造成严重危害，不燃不爆，使用的设备及工具，被加工的部件都可用水清洗。同时具有优异的抗指纹印迹性能，技术沉积的疏水疏油膜层(抗指纹涂层)是目前为止真正意义的抗指纹薄膜，疏水疏油性能优异。
(2)该技术过程比较简单，容易操作。
(3)抗指纹涂层水接触角、油接触角大(水接触角大于115°，油性十六烷接触角大于60°)；低滑动角；易于油污滑落；耐磨性(耐磨性达20000转)和抗老化性优异。
(4)涂层不含重金属铬、不需经酸或碱处理，无甲醛或有机溶剂排放，保护环境和保证人体健康。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例旨在用于解释本发明，而不能理解为对本发明的限制。实施例中未注明具体技术或条件者，按照本领域内的文献所描述的技术或条件或者按照产品说明书进行。所用试剂或仪器未注明生产厂商者，均为可以通过市购获得的常规产品。
所述羟基改性水性聚酯树脂是BD8086；
所述甲醚化氨基树脂为氰特的CYMEL303，CYMEL688，CYMEL325；
所述改性硅溶胶是德立信GAL；
所述中和剂为二甲基乙醇胺；
润湿剂为聚醚改性硅氧烷；
所述流变助剂是罗门哈斯RM2020流平增稠；
所述消泡剂为BYK011，不含有机硅的憎水性固体及破泡聚合物的混合物；
所述流平剂是水性流平剂BYK-333；
所述附着力促进剂是油高Tego410；
所述纳米无机盐为纳米二氧化钛、纳米氧化锌、纳米二氧化锆或纳米二氧化硅中的一种或几种，纳米无机盐颗粒的粒径小于20纳米；
所述催化剂为磺酸胺化合物；
所述助溶剂为丙二醇或丁醇或异丙醇；
实施例1：抗污、耐指纹不锈钢板水性涂料的制备
原料：见表1。
制备步骤：a、先将配方中的羟基改性水性聚酯树脂加入中和剂调整PH到8.5，再将改性硅溶胶，润湿剂，流变助剂，水性聚乙烯蜡和聚四氟乙烯蜡(1:2质量比)混合浆，纳米无机盐，助溶剂混合均匀，以1500～2000转/分钟的转速搅拌均匀，再球磨1小时；
b、再在800转/分搅拌下慢慢加入消泡剂，流平剂，催化剂，附着力促进剂，去离子水，搅拌15-30分钟，再加入甲醚化氨基树脂搅拌均匀经过150-200目筛网过滤后即可包装成品。
c、上述涂料用170-180℃温度烘烤10min制得涂层样品。
效果验证结果见表2。检测方法具体为：涂膜外观：自然光下0.5米间距任意角度目测；厚度：GB/T13452.2-2008色漆和清漆厚度测定；耐指纹测试：凡士林；耐冲击50kg.cm：GB/T 1732-1993漆膜耐冲击测定法；铅笔硬度：GB/T6739-2006色漆和清漆铅笔硬度测定；弯曲检测方法为GB/T6742-2007色漆和清漆弯曲试验；接触角：将液滴滴于固体样品表面,通过显微镜头与相机获得液滴的外形图像,再运用数字图像处理和一些算法将图像中的液滴的接触角计算出来.运用全自动接触角测量仪；耐盐雾：GB/T1771-2007色漆和清漆耐中性盐雾性能测试。
实施例2：抗污、耐指纹不锈钢板水性涂料的制备
原料：见表1。
制备步骤：同实施例1。
结果见表2。检测方法同实施例1。
实施例3：抗污、耐指纹不锈钢板水性涂料的制备
原料：见表1。
制备步骤：同实施例1。
结果见表2。检测方法同实施例1。
实施例4：抗污、耐指纹不锈钢板水性涂料的制备
原料：见表1。
制备步骤：同实施例1。
结果见表2。检测方法同实施例1。
实施例5：抗污、耐指纹不锈钢板水性涂料的制备
原料：见表1。
制备步骤：同实施例1。
结果见表2。检测方法同实施例1。
表1各实施例所用原料的配方表(重量％)
表2各实施例所得抗污、耐指纹不锈钢板水性涂料的效果验证结果表
从表2可以看出，疏水耐指纹效果都比较好，性能都比较不错，但由于南北冬夏差异，具体客户具体配方可在范围内做调整，尽可能满足客户需求。
从表2可以看出，本发明实施例1-5的抗污、耐指纹不锈钢板水性涂料的涂膜外观，厚度，耐指纹测试，耐冲击50kg.cm，铅笔硬度，弯曲，接触角，耐盐雾均符合要求。说明本发明的抗污、耐指纹不锈钢板水性涂料具有优异的抗指纹印迹性能，疏水疏油性能优异，抗指纹涂层水接触角、油接触角大；低滑动角；易于油污滑落；耐磨性，和抗老化性优异。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在不脱离本发明的原理和宗旨的情况下在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。
Claims (8)
1.一种抗污、耐指纹不锈钢板水性涂料，其特征在于，由如下重量比的成分制备得到，
所述改性硅溶胶为德立信GAL；所述纳米无机盐为纳米二氧化钛、纳米氧化锌或纳米二氧化硅中的一种或一种以上，所述纳米无机盐颗粒的粒径小于20纳米；所述抗污、耐指纹不锈钢板水性涂料的制备方法为：按照各原材料所需的配比，将羟基改性水性聚酯树脂加入中和剂调整p H到8.5，再将改性硅溶胶，润湿剂，流变助剂，水性聚乙烯蜡和聚四氟乙烯蜡混合浆，纳米无机盐，助溶剂混合均匀，以1500～2000转/分钟的转速搅拌均匀，再球磨1小时；再在800转/分搅拌下慢慢加入消泡剂，流平剂，催化剂，附着力促进剂，去离子水，搅拌15-30分钟，再加入甲醚化氨基树脂搅拌均匀经过150-200目筛网过滤后即可。
2.权利要求1所述抗污、耐指纹不锈钢板水性涂料，其特征在于，由如下重量比的成分制备得到，
3.权利要求1或2所述抗污、耐指纹不锈钢板水性涂料，其特征在于，所述中和剂为二甲基乙醇胺。
4.权利要求1或2所述抗污、耐指纹不锈钢板水性涂料，其特征在于，所述润湿剂为聚醚改性硅氧烷。
5.权利要求1或2所述抗污、耐指纹不锈钢板水性涂料，其特征在于，所述消泡剂为不含有机硅的憎水性固体及破泡聚合物的混合物。
6.权利要求1或2所述抗污、耐指纹不锈钢板水性涂料，其特征在于，所述水性聚乙烯蜡和聚四氟乙烯蜡混合浆中水性聚乙烯蜡和聚四氟乙烯蜡的质量比为1:2。
7.权利要求1或2所述抗污、耐指纹不锈钢板水性涂料，其特征在于，所述催化剂为磺酸胺化合物。
8.权利要求1或2所述抗污、耐指纹不锈钢板水性涂料，其特征在于，所述助溶剂为丙二醇或丁醇或异丙醇。
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| CN102807807A (zh) * | 2012-08-07 | 2012-12-05 | 杭州传化涂料有限公司 | 一种用于金属卷材的涂料 |
| CN103013337A (zh) * | 2011-09-28 | 2013-04-03 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种金属防护涂料和热镀锌金属材料及热镀铝锌金属材料 |
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| CN102070966A (zh) * | 2011-01-14 | 2011-05-25 | 东南大学 | 一种基于有机无机杂化的耐指纹涂料及其制备方法 |
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