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CN103173058A - 着色薄片 - Google Patents

着色薄片 Download PDF

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Publication number
CN103173058A
CN103173058A CN2012105644788A CN201210564478A CN103173058A CN 103173058 A CN103173058 A CN 103173058A CN 2012105644788 A CN2012105644788 A CN 2012105644788A CN 201210564478 A CN201210564478 A CN 201210564478A CN 103173058 A CN103173058 A CN 103173058A
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Prior art keywords
pigment
thin slice
substrate
layer
painted thin
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Inventor
于淑芳
P·L·雷德蒙
R·彼基曼尼
林海晖
P·J·M·李奇比
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Silberline Manufacturing Co Inc
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Silberline Manufacturing Co Inc
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Publication of CN103173058A publication Critical patent/CN103173058A/zh
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Abstract

本发明描述了一种着色薄片,其包括基片、附着层、彩色颜料层和一保护层,以及一种制造所述着色薄片的方法。公开的着色薄片能在涂料组合物中提供优异的鲜亮色彩效应。色彩效应可以取决于基片和/或彩色颜料层所用是材料。

Description

着色薄片
技术领域
本发明主要涉及效应颜料(effect pigment),特别是涉及效应颜料的设计及其制造方法。
背景技术
效应颜料可以包括有涂层的铝片或有涂层的云母片。前者可以表现出金属效应,而后者则可以表现出珠光效应。近年来,对着色效应颜料的需求有大幅提高。
着色效应颜料的制备方法已见诸描述。例如,US6599355、US6500251和US6648957公开了这样一种方法,该方法用高折射率的金属氧化物层涂覆或用高低折射率的金属氧化物交替层涂覆薄片基片,其中金属氧化物包括TiO2、Zr2O3和Fe2O3。US2011/0126735、US5116664、US6794037、US6325847、US5308394和US6800125公开了以金属粒子层作为反射层的涂层。
利用有机分子产生颜色也已公开。例如,US5931996涉及一种着色铝颜料,包括涂有金属酸酯衍生的金属氧化物层的片状铝基片,其中金属氧化物单层包含至少一种彩色颜料。此颜料的制备包括在有溶剂存在下混合基色颜料(ground color)与铝片。
US5037475公开了一种着色金属颜料的制备方法。在此方法中,含双键的羧酸聚合物首先吸附在金属颜料的表面上,然后彩色颜料再吸附到该修饰表面上。
EP0278633B1(US4755229)描述了基于云母的着色薄片(platelet)的制备方法,其中在云母和彩色颜料存在下,通过加入阳离子多价金属来沉淀含阴离子基团的聚合物。
US6203909B1涉及包括基片和着色剂的复合颜料,其中所述基片和着色剂分别涂有离子或可电离化合物。基片涂层的电荷与着色剂涂层的电荷相反。
US6113683涉及包括珠光颜料和第二颜料的着色珠光颜料,其中,含羟基的聚合物用作珠光颜料和第二颜料的相互吸收率(mutual absorbance)的附着促进剂。
US5156678描述了一种效应颜料,其包括涂覆了有机染料的干扰颜料的,其中所述染料是直接附着在所述干扰颜料上而无需借助粘合剂或其它辅助材料的薄膜。
US6533858涉及着色薄片,包括薄片基片,其表面涂覆有包括阴离子聚合物和水不溶性着色薄片的第一层和包括水合氧化铝或水合铝-铈氧化物与水解硅烷偶联剂涂层的组合的第二层。
就所需色彩效应而言,上述着色薄片的色彩密度较低,或有溶剂渗出的问题。
发明内容
本发明公开了可以提供优异色彩效应的着色薄片及其制备方法。所公开的方法可用于获得所公开的着色薄片,并能提供经济有效的生产着色薄片的方法。
所公开的着色薄片可以包括基片、附着层、彩色颜料层以及保护层。所用的基片可以是不透明或透明的,并且可以包含金属,如铝,金属氧化物,如氧化铝,合成二氧化硅,云母,沸石、玻璃等。在一个实施例中,附着层包括有机层。在一个实施例中,所述附着层为有机单层。在另一实施例中,所述附着层是季铵化层。
在一种实施方式中,所公开的方法包括:在基片上形成附着层,将彩色颜料附着到该附着层上,然后形成保护层。在一个实施例中,所述附着层的形成包括将季铵化试剂加入基片上形成的包含叔胺的有机层。
所公开的着色薄片可用在涂料、油墨、塑料以及其他通用工业涂料中。
附图说明
图1A和1B为所公开的着色薄片的数个实施方式的示意图。
图2A和2B为图1A和1B所示实施方式的示意图。
图3A和3B显示了所公开着色薄片的高放大率SEM(表面电镜扫描)图像。图3A是涂覆前,所公开着色薄片中所含基片的表面照片。图3B是多层涂覆后,所公开着色薄片的表面。
具体实施方式
以下对包括基片、附着层、彩色颜料层和保护层的着色薄片以及生产该着色薄片的方法进行说明。在涂料组合物中使用所公开的着色薄片可以得到相当鲜亮的色彩。使用所公开的着色薄片得到的色彩效应取决于基片所使用的材料和/或含有彩色颜料的彩色颜料层。术语“薄片”在本文是指透明的,金属性的,白色或着色的矿物或任何形式的彩色颜料,其在液体介质中不溶并且适合用于油墨、油漆和塑料组合物。术语“彩色颜料”是指可以赋予颜色的无机或有机粒子。
如图1A所示,着色薄片10包括基片12。在一实施例中,基片可以是包封的薄片。基片12的大小可以是适于形成效应颜料的任意大小。在一实施方式中,基片12的直径可以在5μm~700μm的范围内,厚度为5nm~500nm。可以用场发射扫描电子显微镜(FESEM)测量其直径和厚度。在此实施例中,从基片的顶视图观察来测量直径,并从基片的横截面视图来测量厚度。
在一实施例中,基片12可以是适用于形成效应颜料的任何材料,包括非金属和金属基片。在一实施例中,基片是非金属基片。在本文中,术语“金属”是指,在基片中存在的金属元素的氧化态为零。在本文中,术语“非金属”是指,在基片中存在的元素的氧化态不为零。基片12可以包括玻璃、氧化硅以及云母。在其它实施例中,基片12可以包括金属,比如铝,以及金属氧化物,比如氧化铝。在某些情况下,用于基片12的材料可以决定着色薄片10的色彩效应,下文将详述。
基片12可以为附着层15所包覆。在一实施例中,附着层15是有机单层。在本文中,术语“有机单层”是指这样一种层,该层包含含有有机链的分子,例如,主链上含有约2至30个碳原子的杂原子有机化合物(heteroorganiccompound)。杂原子有机化合物可以包含氨基。在一些实施例中,杂原子有机化合物是可水解化合物的水解产物。在一些实施例中,可水解化合物是氨基硅烷。
在一实施例中,有机单层15可以包括氨基硅烷单层。可用的氨基硅烷的实例包括3-(N,N-二甲基氨基丙基)三甲氧基硅烷,(N,N-二甲基-3-氨基丙基)甲基二甲氧基硅烷,(二甲基氨基)甲基乙氧基硅烷,N-正丁基-氮杂-2,2-二甲氧基硅代环戊烷,双(3-三甲氧基硅烷基丙基)-N-甲胺,N-烯丙基-氮杂-2,2-二甲氧基硅代环戊烷,双(2-羟乙基)-3-氨基丙基三乙氧基硅烷,N,N’-双(羟乙基)-N,N’-双(三甲氧基硅烷基丙基)乙二胺,双(甲基二甲氧基硅烷基丙基)-N-甲胺。
在一实施例中,以起始基片12的重量计,制备薄片10的过程中,有机单层15中氨基硅烷的含量是0.1至20%的范围内。
在一实施例中,有机单层15所包括的有机链可以含有叔胺基团。叔胺基团可以位于沿有机链的任何位置,比如说,在有机链的中部或者有机链的末端。
在某些实施例中,附着层15的厚度可以在0.01nm-50nm的范围内。
附着层15还可以涂覆有彩色颜料层18。彩色颜料层18可以包括彩色颜料。彩色颜料可以是,但不限于,喹吖啶酮,苝,紫环酮(perinone),硫靛颜料,偶氮颜料,重氮颜料,苯并咪唑颜料,萘颜料,金属络合物颜料,异吲哚啉酮颜料,异吲哚啉颜料,靛蓝,喹酞酮颜料,二恶嗪类颜料,蒽醌,和二酮吡咯并吡咯(DPP)。
彩色颜料层18中含有的彩色颜料的粒径为0.1nm至200nm。在一实施例中,彩色颜料层18包括的彩色颜料为具有平均粒径0.1nm至200nm的纳米粒子。
在另一实施方式中,附着层15可以包括季铵化的胺基,它提高附着层15和彩色颜料层18中彩色颜料之间的电荷-电荷相互作用。术语“季铵化的”在本文中指季铵化试剂,它是通过化学键与叔胺基结合以产生季胺的小分子反应物。术语“季胺”在本文中是指其中的氮原子连接有四个基团并带有正电荷的阳离子胺盐。
所述的季铵化试剂可以是具有通式R-X的烷基卤化物,其中R是烷基,X是卤基。在一实施例中,X是Cl、Br或I。在另一实施例中,季铵化试剂可以是碳酸二丙酯、碳酸二苄酯、碳酸二乙酯或碳酸二甲酯。
彩色颜料层还涂覆有保护层25。在一实施例中,保护层25是氧化物层。保护层25可以起到保护着色薄片10表面上粒子的功能。保护层25可以包括SiO2,TiO2,和/或ZrO2。在其它实施例中,保护层25可以是金属粒子层或聚合物层。金属粒子层可以包括银,铜和/或镍。聚合物层可以包括聚苯乙烯(PS),聚甲基丙烯酸甲酯(PMMA),聚甲基丙烯酸酯(PMA),2-羟基乙基甲基丙烯酸酯,甲基丙烯酸缩水甘油酯,和/或二甲基氨基乙基甲基丙烯酸酯。
着色薄片10还可以涂覆有任选层(未示出),以便与所需的树脂体系合用。例如,着色薄片10可以涂覆有含亲水性官能团的有机层,从而改善与水性树脂体系的相容性。
如图1B所示,在另一实施方式中,着色薄片20包括基片12。在一实施方式中,着色薄片20的基片12包括位于基片12表面上的官能团。所述官能团可以是适用于硅烷化基片12表面的任何官能团。在一实施例中,该官能团可以是羟基。在一实施方式中,基片12是玻璃薄片。
基片12上可以涂覆有第一氧化物层32。所述第一氧化物层32可以包括,但不限于,SiO2、TiO2、ZrO2和Fe2O3。在一实施方式中,基片12包括云母,和所述第一氧化物层包括Fe2O3或TiO2
所述第一氧化物层32还可以涂覆有第二氧化物层36。第二氧化物层可以包括SiO2、TiO2、或ZrO2
第二氧化物层36可以涂覆有附着层15。在一个实施例中,可利用所述第二氧化物层36来提高附着层15的附着效率。
附着层15还可以涂覆有彩色颜料层18,彩色颜料层18可涂覆有保护层25。
图1A和图1B显示的彩色颜料层18是与附着层15和保护层25分开的。然而,如图2A和图2B所示,应理解,彩色颜料层18包含的彩色颜料粒子42黏附在包含于附着层15中的有机链45上,其附着位点可以是沿各有机链45的任何位置,比如,图2A和2B所示的有机链的中部。由此,彩色颜料层18的诸组分可以存在于附着层15和/或保护层25中。还应理解,各有机链45可以具有各种取向。
用于制备所公开的着色薄片的本发明方法可以包括在反应器中混合基片12和乙二醇醚。以最终浆料的重量计,基片12的加入量可以是,但并不限于,1%至30%,优选5%至20%的百分比范围内。
可在室温下混合基片和乙二醇醚,然后加入催化剂,例如碱和/或水,以便进行后续的硅烷化,包括形成二氧化硅层和附着层。然后,可将反应器温度升至40°C-60°C。任选将二氧化硅层成形试剂加入该混合物。然后,可加热反应温度至70℃-80℃,1小时。
二氧化硅层成形试剂可以是,但不限于,原硅酸四乙酯,和原硅酸四甲酯。以起始基片的重量计,二氧化硅层成形试剂和催化剂的加入量为:二氧化硅层成形试剂为0.1%-10%的范围内,催化剂为1%-20%。
完成上述反应后,可以将有机单层成形试剂加入该混合物。有机单层成形试剂可以包括氨基硅烷。可用的氨基硅烷包括3-(N,N-二甲基氨基丙基)三甲氧基硅烷,(N,N-二甲基-3-氨基丙基)甲基二甲氧基硅烷,(二甲氨基)甲基乙氧基硅烷,N-正丁基-氮杂-2,2-二甲氧基硅代环戊烷,双(3-三甲氧基硅烷基丙基)-N-甲胺,N-烯丙基-氮杂-2,2-二甲氧基硅代环戊烷,双(2-羟乙基)-3-氨基丙基三乙氧基硅烷,N,N’-双(羟乙基)-N,N’-双(三甲氧基硅烷基丙基)乙二胺,以及双(甲基二甲氧基硅烷基丙基)-N-甲胺。以起始基片重量计,有机单层成形试剂的添加量可以是,但不限于,0.1%-10%的范围内。可以先搅拌包含有机单层成形试剂的混合物,再加热至约75℃。
然后,向上述混合物添加彩色颜料分散体可以形成彩色颜料层18。颜料分散体可以如下制备:将彩色颜料与乙二醇醚PM乙酸酯混合并将混合物振荡数小时。可用的彩色颜料包括喹吖啶酮、苝、紫环酮(perinone)、硫靛颜料、偶氮颜料、重氮颜料、苯并咪唑颜料、萘颜料、金属络合物颜料、异吲哚啉酮颜料、异吲哚啉颜料、靛蓝、喹酞酮颜料、二恶嗪类颜料、蒽醌类和二酮吡咯并吡咯(DPP)。
以基片的重量计,彩色颜料的加入量可以为:0.1%至20%的范围内。在一实施例中,以基片的重量计,彩色颜料的加入量是7.2重量%。
可以搅拌包含颜料分散体的混合物。在一实施例中,还可以向混合物中加入二氧化硅层成形试剂。
任选地,还可以先将季铵化试剂加入混合物,再加入彩色颜料分散体以增强或调节彩色颜料和基片12之间的相互作用。所用的季铵化试剂可以是具有通式RX的烷基卤化物,其中R是烷基,X是卤基。在一实施例中,X是Cl、Br或I。在另一实施例中,季铵化试剂可以是碳酸二丙酯、碳酸二苄酯、碳酸二乙酯或碳酸二甲酯。在一实施例中,将烷基或芳基溴和包括聚(N,N-二甲基氨基乙基甲基丙烯酸酯)(PDMAEMA)的涂层一起使用。在此实施例中,涂覆基片上的叔胺基团被溴化物季铵化,从而为附着层15提供正电荷。因此,附着层15和带负电荷的彩色颜料之间的粘合力增强了。应理解,涂覆基片的涂层内材料,例如烷基链的选择可以极大地影响吸附动力学和着色薄片的最终性能。例如,使用更长碳链的烷基或芳基溴可提高疏水性,将极性基团,例如羟基掺入烷基或芳基溴可能增加亲水性,等等。
在使用的季铵化试剂的实施例中,所述的彩色颜料层是通过与附着层15产生的电荷反应-电相互作用形成,其中粘附层15具有负的Zeta电位。Zeta电位是粒子存在表面电荷所致。
一旦上述反应完成后,将反应混合物冷却。在一实施例中,将混合物冷却至30°C以下。然后将混合物过滤,例如,用布氏漏斗作真空过滤。然后将所得的糊状物用乙二醇醚PM乙酸酯洗涤,再收集。
应理解,所公开方法的上述反应条件和反应时间可以根据所用的试剂进行调整。
在还有另一实施方式中,着色薄片10或20可用于涂料组合物中。所述涂料组合物包括着色薄片10或20以及载体。所述“载体”组分包括基础液体或溶剂、成膜组分和相关添加剂的掺混物。载体包括,但不限于,如下所述:丙烯酸乳液,水可稀释性(water reducible)烷基树脂系统,水可稀释性烷基/三聚氰胺交联系统,水性环氧系统,聚酯乳液,以及水可稀释性聚酯/三聚氰胺涂料。在一些实施例中,载体可以是清漆。术语“清漆”在本文中是指符合ISO12944标准的溶剂掺混物配制的树脂混合物。所述的清漆可以包括丙烯酸类树脂。在其他实施例中,该涂料组合物还可以包括稀释剂。本文的术语“稀释剂”是指快速干燥的有机溶剂,如芳香族或酮类溶剂的掺混物。
在某些情况下,所公开的着色薄片在涂料组合物中体现出优异的色彩效应,色彩效应取决于所公开的着色薄片中使用的材料。术语“色彩效应”在本文中是指采用国际照明委员会(CIE)规定的CIE实验室色彩空间系统进行的比色评估。遵循ASTM E-2194和DIN6175-2标准,利用多角度分光光度计在15°、25°、45°、75°和110°的不同角度测量CIE实验室评估值(CIElab value),所述多角度分光光度计具有D65光源和10°观察角。色彩坐标(L*,b*的)与亮度(L)和颜色(a*和b*)有关。其中a*表示红色/绿色容量,b*表示蓝色/黄色容量。
在一实施例中,所公开的着色薄片可以提供亮红色的色彩效应。在一实施方式中,提供亮红色色彩效应的着色薄片可包括的基片12是云母。基片12可用包含氧化铁的氧化物层32包覆。其它可用于着色薄片以便显现红色色彩效应的有用基片材料包括含氧化铁涂布的铝。在利用氧化铁涂布的云母的实施例中,可用二氧化硅层涂覆氧化铁涂布的云母,而二氧化硅层可以由附着层15包覆。在一实施例中,附着层15可包含以上10所述的材料,包括氨基硅烷。附着层15可以由含有彩色颜料的彩色颜料层18包覆。可用于着色薄片以便提供红色色彩效应的合适彩色颜料包括,但不限于:二萘嵌苯,喹吖啶酮,蒽醌,二酮吡咯并吡咯,和二噁嗪。
本发明所用术语“亮红色色彩效应”表示利用CIE实验室颜色空间系统的比色评估是亮红色。例如,使用D65光源和10°观察角的多角度分光光度计测定如下CIE实验室评估值:
Figure BDA00002632995200081
在一实施例中,公开的着色薄片可以提供的色彩效应是亮深蓝色。在一实施方式中,提供亮深蓝色色彩效应的着色薄片含有的基片12是涂布二氧化钛的云母。其它可用于着色薄片以提供亮深蓝色色彩效应的其它有用的基片12材料包括铝、玻璃、金属氧化物涂覆的基片。在利用涂布二氧化钛的云母作为基片12的实施例中,涂布二氧化钛的云母基片12可用附着层15涂覆。在一实施例中,附着层15可包含以上10所述的材料,其包括氨基硅烷。附着层15可以由含有彩色颜料的彩色颜料层18包覆。可用于着色薄片以便提供亮深蓝色色彩效应的合适彩色颜料包括,但不限于:酞菁、普鲁士蓝、钴蓝。
本发明所用术语“亮深蓝色色彩效应”表示利用CIE实验室颜色空间系统的比色评估是亮深蓝色。例如,使用D65光源和10°观察角的多角度分光光度计测定如下CIE实验室评估值:
Figure BDA00002632995200082
在另一实施方式中,着色薄片10或20可用于制品的涂层中。该制品包括含有着色薄片10或20的涂层。
实施例
实施例1
PM乙酸酯中的彩色颜料粒子分散体
将5.4g的喹吖啶酮彩色颜料加入铝罐中,然后加入乙二醇醚PM乙酸酯。在此之后,用油漆振动器振荡该混合物2小时,从而制得4%的彩色颜料分散体。
实施例2
在带冷凝器的1升反应容器中,将75g氧化铁涂布的云母分散到400g乙二醇醚PM乙酸酯中并搅拌,其中铁氧化物涂布的云母的粒径为10-60μm(D50=25μm)。30分钟后,将5%的水和4%的氨水(以氧化铁涂布的云母的重量计)加入分散体,并将所得混合物搅拌30分钟。然后,将混合物的温度升高至50℃。加入6%的原硅酸四乙酯(TEOS)并搅拌。在此之后,将温度升高到75℃并维持1小时。然后加入2%的3-(N,N-二甲基氨基丙基)三甲氧基硅烷,并将混合物搅拌一小时。加入实施例1所得的彩色颜料分散体,并对混合物搅拌30分钟。向混合物中加入第二部分的TEOS12%。一小时后,过滤浆液,并用乙二醇醚PM乙酸酯洗涤3次。
实施例3
同实施例2,不同点在于:将75克氧化铁涂布的云母分散在乙二醇醚PM中并用乙二醇醚PM作最后的洗涤。
实施例4
在带冷凝器的1升反应容器中,将75g氧化铁涂布的云母分散到400g乙二醇醚PM乙酸酯中并搅拌,其中铁氧化物涂布的云母的粒径为10-60μm(D50=25μm)。30分钟后,将5%的水和4%的氨水(以氧化铁涂布的云母的重量计)加入分散体,并对所得混合物搅拌30分钟。然后,将混合物的温度升高至50℃。加入6%的原硅酸四乙酯(TEOS)并搅拌。在此之后,将温度升高到75℃,并维持1小时。然后加入2%的3-(N,N-二甲基氨基丙基)三甲氧基硅烷,搅拌得到的混合物一小时。然后,加入2%的碳酸二丙酯,并搅拌1小时。加入实施例1所得的彩色颜料分散体,搅拌所得混合物30分钟。向混合物中加入第二部分的TEOS12%。一小时后,过滤浆液,并用乙二醇醚PM乙酸酯洗涤3次。
实施例5
将75g二氧化钛涂布的双色云母分散到400g乙二醇醚PM乙酸酯中并搅拌,其中二氧化钛涂布的云母的粒径为10-60μm(D50=25μm)。30分钟后,将4%的氨水(以二氧化钛涂布的云母的重量计)加入分散体并搅拌30分钟。然后,将混合物的温度升高至50℃。加入6%的原硅酸四乙酯(TEOS)并搅拌。在此之后,将温度升高到75℃,并维持1小时。然后加入2%的3-(N,N-二甲基氨基丙基)三甲氧基硅烷,并搅拌混合物一小时。加入实施例1所得的彩色颜料分散体,并搅拌混合物30分钟。然后向混合物中加入第二部分的TEOS12%。一小时后,过滤浆液,并用乙二醇醚PM乙酸酯洗涤3次。
实施例6
PM乙酸酯中的彩色颜料粒子分散体
将5.4g的酞菁蓝颜料加入铝罐中,然后,加入乙二醇醚PM乙酸酯。在此之后,用油漆振动器振荡该罐2小时,从而制得4%的彩色颜料分散体。
实施例7
将2g二氧化钛涂布的淡蓝色云母基片分散到18g乙二醇醚PM乙酸酯中并搅拌。30分钟后,加入4g实施例6中所得的有机颜料分散体,并搅拌30分钟。然后,加入0.25g的3-(N,N-二甲基氨基丙基)三甲氧基硅烷和0.2g碳酸二丙酯,并将混合物搅拌30分钟。接着,加入0.5g水并搅拌30分钟。在此之后,将温度升高到75℃,并维持1小时。然后,加入0.5g原硅酸四乙酯(TEOS)并搅拌。一小时后,过滤浆液并用乙二醇醚PM乙酸酯洗涤3次。与原始加入的淡蓝色基片相比,所制得的颜料非常鲜亮,蓝色更深。
实施例8
为了评估实施例2得到的彩色颜料所提供的色彩效应,取1g实施例2制备的着色薄片与专用汽车修补漆树脂系统混合,其包括三份清漆和一份稀释剂。最终涂料的颜料含量为17%(重量)。最终涂料在Speedmixer(DAC150FVZ-K)(购自Flackteck公司)分散30秒。使用刮涂棒(14号)在一张黑白墨水纸板上制备有色清漆的刮样膜。将薄膜置于温度为95°F的烘箱中干燥,然后用三份清漆和一份稀释剂在薄膜顶部施涂一透明涂层。用X-Rite MA68II多角度分光光度计在15°、25°、45°、75°和110°的不同角度测定CIE实验室评估值。用D65光源和10°的观察角测量报告的色坐标(L,a*值,b*)。L为亮度,a*表示红色/绿色,b*表示蓝色/黄色。如表1所示的(如实施例2制备的样本),将单片刮样膜在白色背景中测量。
对比例8
除了使用1g实施例2的氧化铁涂布的起始云母替代实施例2中制备的着色薄片,余同实施例8。CIE实验室测试结果如表2所示。
表1
Figure BDA00002632995200111
表2
Figure BDA00002632995200112
从上述的表1和2可以清楚地看出,与利用实施例2的起始基片提供的相比,使用实施例2中得到的着色薄片能提供更高的a*值(更正的a*值)这些结果表明,实施例2中得到的着色薄片可以提供相当优异的亮红色色彩效应。
实施例9
除了将1g实施例7而不是实施例2中制备的着色薄片在树脂系中分散,余同实施例8,且仅有基础涂覆膜是通过刮涂而得,即,并没有施涂透明涂层。CIE实验室测试数据的结果如表3所示。
对比例9
除了使用1g实施例7中二氧化钛涂布的起始云母而不是实施例7中制备的着色薄片,余同实施例9。CIE实验室测试数据的结果如表4所示。
表3
表4
Figure BDA00002632995200122
从以上的表3和4中可以清楚地看出,比使用实施例7的起始基片所提供的相比,使用实施例7中得到着色薄片提供更负的b*值。这些结果表明,实施例7中得到的着色薄片可以提供相当优异的亮深蓝色色彩效应。
SEM图像分析
利用干净的实验抹刀将样品经由一片双面导电碳胶带固定在一块铝棒上。先用氮气吹走多余的粉末,再引入SEM的分析室。所有样品处理需使用清洁的镊子和手套。将样品置入分析室,然后真抽空至<1×10-5托。所有显微镜检查在15毫米的工作距离进行。图3A是在涂布前的基片SEM图像,图3B是多层涂覆后表面的SEM图像。
如上所讨论的,本文的一种或多种颜料可以用在涂料、油墨、塑料以及其他通用工业涂料中。
虽然已结合一些具体的实施方式描述了本发明的颜料和方法,但是本领域技术人员明白,可以在本发明的权限和范围内实现本发明颜料和方法的其它目的和改进方案。本发明的各种方面以及公开形式能很好地适用于实现其他优点。所公开的细节不应视作对权利要求的限制。

Claims (19)

1.一种着色薄片,包括:
基片;
包覆所述基片的附着层;以及
彩色颜料层,所述彩色颜料层包括附着于所述附着层的彩色颜料。
2.如权利要求1所述的着色薄片,其特征在于,所述基片为非金属。
3.如权利要求1所述的着色薄片,其特征在于,所述基片包括选自下组的至少一种:玻璃、氧化硅、云母,和氧化铝。
4.如权利要求1所述的着色薄片,其特征在于,还包括包覆所述基片的氧化物层。
5.如权利要求4所述的着色薄片,其特征在于,所述的氧化物层包括选自下组的至少一种:氧化铁、二氧化硅、二氧化钛以及二氧化锆。
6.如权利要求1所述的着色薄片,其特征在于,还包括保护附着层上的彩色颜料的保护层。
7.如权利要求6所述的着色薄片,其特征在于,所述保护层是氧化物层、金属粒子层或聚合物层。
8.如权利要求7所述的着色薄片,其特征在于,所述保护层是包括至少一种选自下组的氧化物层:SiO2、TiO2以及ZrO2
9.如权利要求1所述的着色薄片,其特征在于,所述基片是云母,所述基片涂覆有氧化铁,所述彩色颜料包括选自下组的至少一种:喹吖啶酮、苝、蒽醌、二酮吡咯并吡咯,和二噁嗪。
10.如权利要求1所述的着色薄片,其特征在于,所述基片是云母,所述基片涂覆有二氧化钛,所述彩色颜料包括选自下组的至少一种:酞菁、普鲁士蓝和钴蓝。
11.如权利要求1所述的着色薄片,其特征在于,所述附着层包括氨基。
12.如权利要求11所述的着色薄片,其特征在于,所述氨基是叔氨基。
13.如权利要求1所述的着色薄片,其特征在于,所述彩色颜料包括选自下组的至少一种:喹吖啶酮、苝、环酮、硫靛颜料、偶氮颜料、重氮颜料、苯并咪唑颜料、萘颜料、金属络合物颜料、异吲哚啉酮颜料、异吲哚啉颜料、靛蓝、喹酞酮颜料、二噁嗪类颜料、蒽醌和二酮吡咯并吡咯(DPP)。
14.一种制备权利要求1所述的着色薄片的方法,包括:
将基片分散在溶剂中以形成基片分散体;
向所述基片分散体中加入氨基硅烷以形成附着层;和
向所述基片分散体中加入彩色颜料分散体以形成彩色颜料层。
15.如权利要求14所述的方法,其特征在于,所述彩色颜料分散体通过向溶剂中加入彩色颜料而形成。
16.一种涂料组合物,包括:
权利要求1所述的着色薄片,和
载体。
17.如权利要求16所述的涂料组合物,其特征在于,所述涂料组合物具有亮红色色彩效应。
18.如权利要求16所述的涂料组合物,其特征在于,所述涂料组合物具有亮深蓝色色彩效应。
19.一种制品,包括:
具有涂层的表面,所述涂层含有权利要求1所述的着色薄片。
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