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WO2025000161A1 - 一种色彩及贮存稳定的效应颜料建筑涂料及其制备方法 - Google Patents

一种色彩及贮存稳定的效应颜料建筑涂料及其制备方法 Download PDF

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Publication number
WO2025000161A1
WO2025000161A1 PCT/CN2023/102234 CN2023102234W WO2025000161A1 WO 2025000161 A1 WO2025000161 A1 WO 2025000161A1 CN 2023102234 W CN2023102234 W CN 2023102234W WO 2025000161 A1 WO2025000161 A1 WO 2025000161A1
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Prior art keywords
preparation
color
effect pigment
prepared
building coating
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French (fr)
Inventor
马安荣
黄银庆
池钟慷
黄东辉
胡祥顺
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Shanghai Sanyin Madepaint Co Ltd
Shanghai Sanyin Paint Technology CoLtd
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Shanghai Sanyin Madepaint Co Ltd
Shanghai Sanyin Paint Technology CoLtd
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Priority to PCT/CN2023/102234 priority Critical patent/WO2025000161A1/zh
Publication of WO2025000161A1 publication Critical patent/WO2025000161A1/zh
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/10—Homopolymers or copolymers of methacrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/10—Homopolymers or copolymers of methacrylic acid esters
    • C09D133/12—Homopolymers or copolymers of methyl methacrylate

Definitions

  • the invention relates to the field of coatings, in particular to a color and storage-stable effect pigment architectural coating and a preparation method thereof.
  • Effect pigment paint is a kind of metallic glitter paint, which refers to a type of paint with a granular glittering effect made with transparent organic pigments or flake effect pigments such as aluminum powder, pearl powder, copper and gold powder, etc.
  • the flake pigments in the paint film shine and glitter, showing a strong metallic texture, and with the change of observation angle, it presents rich layers of light and dark and tonal changes, giving people a luxurious and gorgeous visual impact, thus becoming the mainstream of topcoat coating, and its usage has exceeded 70% of the demand for topcoat coating.
  • effect pigment coatings have attractive application prospects, after being used outdoors for a period of time, they will cause color distortion due to aging and other reasons. In addition, the storage stability of effect pigment architectural coatings is poor, which has always restricted the application of this coating.
  • the present invention adopts modified natural mica flakes, which are coated with silica aerogel and then added with a specific dispersant system, which not only ensures the color stability of the coating during long-term use, but also greatly improves the storage stability of the coating due to the presence of the dispersion system, and the coating has good freeze-thaw performance.
  • the purpose of the present invention is to provide a color and storage-stable effect pigment architectural coating and a preparation method thereof in order to overcome the defects of the above-mentioned prior art.
  • the coating obtained by the preparation method not only has a long-lasting color, but also has good storage stability, and has a wide range of application prospects.
  • the acrylic polymer dispersant emulsion is prepared by the following method: in a solvent, methyl methacrylate, hydroxyethyl methacrylate and 1,6-hexanediol dimethacrylate are polymerized under the action of an initiator and a surfactant to obtain an acrylic polymer dispersant emulsion.
  • the natural mica flakes modified with silicon dioxide and iron oxide are prepared by the following method: mixing the natural mica flakes with water, adding the orthosilicic acid solution, stirring for reaction, and filtering to obtain the first reactant; placing the first reactant in a vapor deposition reactor, and performing iron red vapor diffusion and penetration treatment under vacuum conditions.
  • the time of the gas phase diffusion infiltration treatment is preferably 60 to 90 minutes.
  • the drying temperature is preferably 120-140°C, and the calcination temperature is preferably 500-550°C.
  • the catalyst may be a tin compound, preferably dibutyltin oxide or tin isooctanoate.
  • the solvent is preferably deionized water.
  • the initiator is preferably a peroxide initiator, more preferably ammonium persulfate or dibenzoyl peroxide.
  • the surfactant is preferably AEROSOL EF-810 surfactant purchased from Solvay.
  • the polyurethane modified acrylic resin is preferably prepared by the following method: mixing hydroxy acrylate and isocyanate and heating them to react to obtain a polyurethane prepolymer; adding an organic solvent and polymerizing the polyurethane prepolymer with methyl methacrylate to obtain the polyurethane modified acrylic resin.
  • the invention also provides architectural coating containing effect pigments prepared by the preparation method.
  • the architectural coating may further include various additives.
  • step (3) If an auxiliary agent is included, it is added in step (3).
  • the present invention Compared with the prior art, the present invention has the following beneficial effects: the present invention adopts modified natural mica flakes, which are coated with silica aerogel and then added with a specific dispersant system, which not only ensures the color stability of the coating during long-term use, but also greatly improves the storage stability of the coating due to the presence of the dispersion system, and the coating has good freeze-thaw properties.
  • Storage stability test Store the pigment at 20°C and 40°C for 10 weeks to observe whether there is any sedimentation or deterioration, and to observe the color change of the coating after drying.
  • Freeze-thaw stability test method First, the pH of the pigment (measured at 23°C) and its viscosity at shear loads of 10s-1, 100s-1 and 1000s-1 were determined [measured at 23°C using a rotational viscometer (Rheolab QC equipment from Anton Paar, with C-LTD80/QC adjustment system)]. 200 g of the corresponding pigment was then stored at -18°C for 8 hours in a tightly sealed glass bottle and subsequently kept at room temperature for 16 hours. This procedure was repeated 4 more times. The pH and viscosity were then determined again, and the sedimentation characteristics of the pigment were evaluated.
  • natural mica flakes modified with silicon dioxide and iron oxide natural mica flakes with a particle size of 10-15 ⁇ m are mixed with water, and then the orthosilicic acid solution is slowly added, stirred for reaction, and the first reactant is obtained by suction filtration; the first reactant is placed in a vapor deposition reactor, and subjected to iron red vapor diffusion and penetration treatment for 70 minutes under vacuum conditions, and then dried at 120°C for 1 hour and calcined at 500°C for 2 hours.
  • the acrylic polymer dispersant emulsion is prepared by the following method: in a solvent (deionized water), methyl methacrylate, hydroxyethyl methacrylate and 1,6-hexanediol dimethacrylate are polymerized at 70° C. under the action of an initiator (ammonium persulfate) and a surfactant (AEROSOL EF-810 of Solvay) to obtain the acrylic polymer dispersant emulsion; wherein the mass ratio of methyl methacrylate, hydroxyethyl methacrylate and 1,6-hexanediol dimethacrylate is 2:1:1.
  • the polyurethane modified acrylic resin is prepared by the following method: hydroxy acrylate and isocyanate are mixed in a mass ratio of 1:1.2 and heated to react to obtain a polyurethane prepolymer; an organic solvent (propylene glycol ethyl ether) is added, and the polyurethane prepolymer and methyl methacrylate are polymerized for 3 hours under the initiation of ammonium persulfate; the isocyanate is diphenylmethane diisocyanate.
  • natural mica flakes modified with silicon dioxide and iron oxide natural mica flakes with a particle size of 10-15 ⁇ m are mixed with water, and then the orthosilicic acid solution is slowly added, stirred for reaction, and the first reactant is obtained by suction filtration; the first reactant is placed in a vapor deposition reactor, and subjected to iron red vapor diffusion and penetration treatment for 80 minutes under vacuum conditions, and then dried at 130°C for 1 hour and calcined at 550°C for 2 hours.
  • the acrylic polymer dispersant emulsion is prepared by the following method: in a solvent (deionized water), methyl methacrylate, hydroxyethyl methacrylate and 1,6-hexanediol dimethacrylate are polymerized at 80° C. under the action of an initiator (ammonium persulfate) and a surfactant (AEROSOL EF-810 of Solvay) to obtain the acrylic polymer dispersant emulsion; wherein the mass ratio of methyl methacrylate, hydroxyethyl methacrylate and 1,6-hexanediol dimethacrylate is 1:1:1.
  • the polyurethane modified acrylic resin is prepared by the following method: hydroxy acrylate and isocyanate are mixed in a mass ratio of 1:1.5 and heated to react to obtain a polyurethane prepolymer; an organic solvent (propylene glycol ethyl ether) is added, and the polyurethane prepolymer and methyl methacrylate are polymerized for 3 hours under the initiation of ammonium persulfate; the isocyanate is hexamethylene diisocyanate.
  • step (2) of the preparation method of this example when the acid value of the system reaches 4 mg KOH/g, the reaction is stopped, and the other preparation methods and parameter conditions are the same as those in Example 1 to prepare the architectural coating. Its performance is tested.
  • step (2) of the preparation method of this example polycaprolactone diol is used to replace polycarbonate diol, and the other preparation methods and parameter conditions are the same as those in Example 1 to prepare the architectural coating. The performance of the coating is tested.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

一种色彩及贮存稳定的效应颜料建筑涂料及其制备方法，该效应颜料建筑涂料的制备方法包括下述步骤：将二氧化硅与氧化铁共同改性的天然云母片、二氧化硅气凝胶与环己烷混合，分散均匀；然后加入二聚酸和聚碳酸酯二醇，在催化剂的作用下反应，当体系酸值达到7~10mg KOH/g时，停止反应并加入甲基乙基酮，搅拌均匀；然后再加入丙烯酸酯类聚合物分散剂乳液、聚氨酯改性丙烯酸树脂、水后，分散均匀即可。上述制备方法制得的效应颜料建筑涂料不仅色彩长久保持，而且涂料的贮存稳定性较佳，有着广泛的使用前景。

Description

一种色彩及贮存稳定的效应颜料建筑涂料及其制备方法 技术领域
本发明涉及涂料领域，尤其是涉及一种色彩及贮存稳定的效应颜料建筑涂料及其制备方法。
 背景技术
效应颜料涂料是一种金属闪光漆，是指以透明有机颜料或片状效应颜料如铝粉、珠光粉、铜金粉等配制成的具有颗粒状闪烁效果的一类涂料，涂装后在光源照射下，漆膜中的片状颜料交辉闪烁，呈现出强烈的金属质感，并且随着观察角度的变化呈现出层次丰富的明暗和色调变化，给人以奢华艳丽的视觉冲击，因而成为面漆涂装的主流，其用量已超过面漆涂装需求的70%。
虽然效应颜料涂料有着诱人的应用前景，但其在室外使用一段时间后，由于老化等原因会导致色彩失真，而且效应颜料建筑涂料的贮存稳定性较差，也一直制约着该涂料的应用。
本发明采用改性的天然云母片，通过二氧化硅气凝胶包覆后，再添加特定的分散剂体系，不仅保证了涂料长久使用色彩的稳定性，而且由于分散体系的存在，大大提高了涂料的贮存稳定性，且涂料具有良好的冻融性能。
 发明内容
本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种色彩及贮存稳定的效应颜料建筑涂料及其制备方法。该制备方法得到的涂料不仅色彩长久保持，而且涂料的贮存稳定性较佳，有着广泛的使用前景。
本发明通过以下技术方案解决上述技术问题：
一种含效应颜料的建筑涂料的制备方法，其包括下述步骤：
（1）将二氧化硅与氧化铁共同改性的天然云母片、二氧化硅气凝胶与环己烷混合，分散均匀；
（2）加入二聚酸和聚碳酸酯二醇，在催化剂的作用下反应，当体系酸值达到7~10mg KOH/g时，停止反应并加入甲基乙基酮，搅拌均匀；
（3）加入丙烯酸酯类聚合物分散剂乳液、聚氨酯改性丙烯酸树脂、水后，分散均匀，即可；所述的丙烯酸酯类聚合物分散剂乳液通过下述方法制得：在溶剂中，甲基丙烯酸甲酯、甲基丙烯酸羟乙酯、1,6-己二醇二甲基丙烯酸酯在引发剂和表面活性剂的作用下，聚合反应，得到丙烯酸酯类聚合物分散剂乳液。
其中，所述的二氧化硅与氧化铁共同改性的天然云母片通过下述方法制得：将天然云母片与水混合后，加入原硅酸溶液，搅拌反应，抽滤得第一反应物；将第一反应物放入气相沉积反应器中，真空条件下进行铁红气相扩散渗透处理，即可。
其中，所述的气相扩散渗透处理的时间较佳的为60~90min。
其中，在气相扩散渗透处理后较佳的进行烘干、煅烧；所述的烘干的温度较佳的为120~140℃，所述的煅烧的温度较佳的为500~550℃。
步骤（2）中，所述的催化剂可选择锡类化合物，优选二丁基氧化锡或异辛酸锡。
步骤（3）中，所述的溶剂较佳的为去离子水。
步骤（3）中，所述的引发剂较佳的为过氧类引发剂，更佳的为过硫酸铵或过氧化二苯甲酰。
步骤（3）中，所述的表面活性剂较佳的为购置于索尔维的AEROSOL EF-810表面活性剂。
步骤（3）中，所述的聚氨酯改性丙烯酸树脂较佳的通过下述方法制得：将羟基丙烯酸酯和异氰酸酯混合加热反应，得到聚氨酯预聚物；加入有机溶剂，将所述聚氨酯预聚物与甲基丙烯酸甲酯聚合反应，即得。
本发明还提供了由上述制备方法制得的含效应颜料的建筑涂料。
在本发明优选的实施例中，该建筑涂料还可包括各种助剂。
如果包括助剂，则助剂在步骤（3）中加入。
与现有技术相比，本发明具有以下有益效果：本发明采用改性的天然云母片，通过二氧化硅气凝胶包覆后，再添加特定的分散剂体系，不仅保证了涂料长久使用色彩的稳定性，而且由于分散体系的存在，大大提高了涂料的贮存稳定性，且涂料具有良好的冻融性能。
 实施方式
下面结合具体实施例对本发明进行详细说明。
储存稳定性测试：将颜料在20℃、40℃条件下储存10周后观察是否有沉积变质，并用于干燥后涂层的色彩变化。
冻融稳定性测试方法：首先测定颜料的pH(在23℃下测量)以及在10s-1，100s-1和1000s-1的剪切负荷下测定其粘度【使用旋转粘度计（来自Anton Paar的Rheolab QC设备，具有C-LTD80/QC调节系统）在23℃下测量】。然后在紧密密封的玻璃瓶中将200g相应颜料-18℃下储存8小时，随后在室温下保持16小时。将该程序再重复4次。然后再次测定pH和粘度，并评价颜料的沉降特性。
实施例
制备二氧化硅与氧化铁共同改性的天然云母片：将粒径为10~15μm的天然云母片与水混合后，缓慢加入原硅酸溶液，搅拌反应，抽滤得第一反应物；将第一反应物放入气相沉积反应器中，真空条件下进行铁红气相扩散渗透处理70min，然后在120℃烘干1h、在500℃煅烧2h得到。
本实施例的含效应颜料的建筑涂料通过下述步骤制得：
（1）将上述得到的二氧化硅与氧化铁共同改性的天然云母片、二氧化硅气凝胶与环己烷混合，搅拌分散均匀；
（2）加入二聚酸和聚碳酸酯二醇，在催化剂二丁基氧化锡的作用下反应，当体系酸值达到8mg KOH/g时，停止反应并加入甲基乙基酮，搅拌均匀；
（3）加入丙烯酸酯类聚合物分散剂乳液、聚氨酯改性丙烯酸树脂、水后，分散均匀，即可。
该丙烯酸酯类聚合物分散剂乳液通过下述方法制得：在溶剂（去离子水）中，甲基丙烯酸甲酯、甲基丙烯酸羟乙酯、1,6-己二醇二甲基丙烯酸酯在引发剂（过硫酸铵）和表面活性剂（索尔维的AEROSOL EF-810）的作用下，70℃聚合反应，得到丙烯酸酯类聚合物分散剂乳液；其中甲基丙烯酸甲酯、甲基丙烯酸羟乙酯、1,6-己二醇二甲基丙烯酸酯的质量比为2：1：1。
该聚氨酯改性丙烯酸树脂通过下述方法制得：将羟基丙烯酸酯和异氰酸酯按质量比1：1.2混合加热反应，得到聚氨酯预聚物；加入有机溶剂（丙二醇乙醚），将所述聚氨酯预聚物与甲基丙烯酸甲酯在过硫酸铵的引发作用下，聚合反应3h，即可；该异氰酸酯选用二苯基甲烷二异氰酸酯。
将本实施例的颜料在20℃、40℃条件下储存10周后，未观察到有沉积变质，pH值基本不变，用于干燥后涂层的色彩没有变化。
按照上述冻融循环测试后，测试结果如下表：
。
实施例
制备二氧化硅与氧化铁共同改性的天然云母片：将粒径为10~15μm的天然云母片与水混合后，缓慢加入原硅酸溶液，搅拌反应，抽滤得第一反应物；将第一反应物放入气相沉积反应器中，真空条件下进行铁红气相扩散渗透处理80min，然后在130℃烘干1h、在550℃煅烧2h得到。
本实施例的含效应颜料的建筑涂料通过下述步骤制得：
（1）将上述得到的二氧化硅与氧化铁共同改性的天然云母片、二氧化硅气凝胶与环己烷混合，搅拌分散均匀；
（2）加入二聚酸和聚碳酸酯二醇，在催化剂异辛酸锡的作用下反应，当体系酸值达到10mg KOH/g时，停止反应并加入甲基乙基酮，搅拌均匀；
（3）加入丙烯酸酯类聚合物分散剂乳液、聚氨酯改性丙烯酸树脂、水后，分散均匀，即可。
该丙烯酸酯类聚合物分散剂乳液通过下述方法制得：在溶剂（去离子水）中，甲基丙烯酸甲酯、甲基丙烯酸羟乙酯、1,6-己二醇二甲基丙烯酸酯在引发剂（过硫酸铵）和表面活性剂（索尔维的AEROSOL EF-810）的作用下，80℃聚合反应，得到丙烯酸酯类聚合物分散剂乳液；其中甲基丙烯酸甲酯、甲基丙烯酸羟乙酯、1,6-己二醇二甲基丙烯酸酯的质量比为1：1：1。
该聚氨酯改性丙烯酸树脂通过下述方法制得：将羟基丙烯酸酯和异氰酸酯按质量比1：1.5混合加热反应，得到聚氨酯预聚物；加入有机溶剂（丙二醇乙醚），将所述聚氨酯预聚物与甲基丙烯酸甲酯在过硫酸铵的引发作用下，聚合反应3h，即可；该异氰酸酯选用六亚甲基二异氰酸酯。
将本实施例的颜料在20℃、40℃条件下储存10周后，未观察到有沉积变质，pH值基本不变，用于干燥后涂层的色彩没有变化。
按照上述冻融循环测试后，测试结果如下表：
。
对比例1
该例制备方法的步骤（2）体系酸值达到4mg KOH/g时，停止反应，其他制备方法及参数条件均同实施例1，制得建筑涂料。测试其性能。
将本例的颜料在20℃条件下储存10周后，未观察到有沉积变质，pH值基本不变，用于干燥后涂层的色彩没有变化；但在40℃条件下储存10周后，有观察到少许沉积，用于干燥后涂层的色彩变得黯淡，亮度明显降低。
按照上述冻融循环测试后，测试结果如下表：
。
对比例2
该例制备方法的步骤（2）中由聚己内酯二醇替换掉聚碳酸酯二醇，其他制备方法及参数条件均同实施例1，制得建筑涂料。测试其性能。
将本例的颜料在20℃条件下储存10周后，未观察到有沉积变质，pH值基本不变，用于干燥后涂层的色彩没有变化；但在40℃条件下储存10周后，有观察到明显沉积，用于干燥后涂层的色彩变得黯淡，亮度明显降低。
按照上述冻融循环测试后，测试结果如下表：
。
从上述比较可以看出，对比例1和2的涂料在高温存储条件下容易沉积变质，且涂层色彩也会变得黯淡，亮度明显降低；冻融循环后粘度升高明显，大大影响了产品质量。而本发明的实施例得到的涂料没有明显的变化，且经过冻融循环后粘度也没有显著上升，说明本发明的涂料具有良好的冻融性能。
必须加以强调的是，上述的详细说明是针对本发明可行实施例的具体说明，但该实施例并非用以限制本发明的专利范围，凡未脱离本发明技艺精神所为的等效实施或变更，均应包含于本发明的专利范围中。

Claims (10)

  1. 一种含效应颜料的建筑涂料的制备方法，其包括下述步骤：
    （1）将二氧化硅与氧化铁共同改性的天然云母片、二氧化硅气凝胶与环己烷混合，分散均匀；
    （2）加入二聚酸和聚碳酸酯二醇，在催化剂的作用下反应，当体系酸值达到7~10mg KOH/g时，停止反应并加入甲基乙基酮，搅拌均匀；
    （3）加入丙烯酸酯类聚合物分散剂乳液、聚氨酯改性丙烯酸树脂、水后，分散均匀，即可；所述的丙烯酸酯类聚合物分散剂乳液通过下述方法制得：在溶剂中，甲基丙烯酸甲酯、甲基丙烯酸羟乙酯、1,6-己二醇二甲基丙烯酸酯在引发剂和表面活性剂的作用下，聚合反应，得到丙烯酸酯类聚合物分散剂乳液。
  2. 如权利要求1所述的制备方法，其特征在于，所述的二氧化硅与氧化铁共同改性的天然云母片通过下述方法制得：将天然云母片与水混合后，加入原硅酸溶液，搅拌反应，抽滤得第一反应物；将第一反应物放入气相沉积反应器中，真空条件下进行铁红气相扩散渗透处理，即可。
  3. 如权利要求2所述的制备方法，其特征在于，所述的气相扩散渗透处理的时间较佳的为60~90min。
  4. 如权利要求2所述的制备方法，其特征在于，在气相扩散渗透处理后进行烘干、煅烧；所述的烘干的温度较佳的为120~140℃，所述的煅烧的温度较佳的为500~550℃。
  5. 如权利要求1所述的制备方法，其特征在于，步骤（2）中，所述的催化剂为锡类化合物，优选二丁基氧化锡或异辛酸锡。
  6. 如权利要求1所述的制备方法，其特征在于，步骤（3）中，所述的溶剂为去离子水。
  7. 如权利要求1所述的制备方法，其特征在于，步骤（3）中，所述的引发剂为过氧类引发剂，更佳的为过硫酸铵或过氧化二苯甲酰。
  8. 如权利要求1所述的制备方法，其特征在于，步骤（3）中，所述的表面活性剂为购置于索尔维的AEROSOL EF-810表面活性剂。
  9. 如权利要求1所述的制备方法，其特征在于，步骤（3）中，所述的聚氨酯改性丙烯酸树脂较佳的通过下述方法制得：将羟基丙烯酸酯和异氰酸酯混合加热反应，得到聚氨酯预聚物；加入有机溶剂，将所述聚氨酯预聚物与甲基丙烯酸甲酯聚合反应，即得。
  10. 一种由如权利要求1~9中任一项所述的制备方法制得的含效应颜料的建筑涂料。
PCT/CN2023/102234 2023-06-25 2023-06-25 一种色彩及贮存稳定的效应颜料建筑涂料及其制备方法 Pending WO2025000161A1 (zh)

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* Cited by examiner, † Cited by third party
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EP0695791A2 (en) * 1994-08-02 1996-02-07 Basf Corporation Refinish paint containing special effect pigment
WO2007043633A2 (en) * 2005-10-11 2007-04-19 Kansai Paint Co., Ltd. Effect pigment-containing, water-borne base coating compositions
CA3030637A1 (en) * 2016-07-13 2018-01-18 Kansai Paint Co., Ltd. Effect pigment dispersion
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