CN105238247A - Preparation method of waterborne polyurethane reflective insulation coating - Google Patents
Preparation method of waterborne polyurethane reflective insulation coating Download PDFInfo
- Publication number
- CN105238247A CN105238247A CN201510694914.7A CN201510694914A CN105238247A CN 105238247 A CN105238247 A CN 105238247A CN 201510694914 A CN201510694914 A CN 201510694914A CN 105238247 A CN105238247 A CN 105238247A
- Authority
- CN
- China
- Prior art keywords
- high near
- pigment
- infrared reflective
- component
- infrared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Paints Or Removers (AREA)
Abstract
一种水性聚氨酯反射隔热涂料的制备方法，该涂料含有甲组分和乙组分并按{4～10}:1勾兑而成，甲组分中含有水性多羟基丙烯酸树脂、高近红外反射白颜料、二氧化硅气凝胶、填料、高近红外反射黄颜料、高近红外反射棕颜料、高近红外反射红颜料、高近红外反射蓝颜料、高近红外反射黑颜料、去离子水以及助剂，乙组分中含有基于HDI的水性脂肪族聚异氰酸酯、丙二醇甲醚醋酸酯，制备方法含烘干处理、甲组分制备、乙组分制备及甲组分和乙组分的勾兑方式，该涂料具有较高的近红外反射率和较高的中远红外反射率以及较低的热导率，可应用于建筑物外墙，能显著减少外墙对太阳光辐射能量的吸收，降低室内温度，隔热温差可达10℃以上，减少空调能耗。A method for preparing a water-based polyurethane reflective heat-insulating coating. The coating contains component A and component B and is blended according to {4-10}:1. The component A contains water-based polyhydroxy acrylic resin, high near-infrared reflection White pigment, silica airgel, filler, high near-infrared reflective yellow pigment, high near-infrared reflective brown pigment, high near-infrared reflective red pigment, high near-infrared reflective blue pigment, high near-infrared reflective black pigment, deionized water As well as additives, component B contains HDI-based water-based aliphatic polyisocyanate, propylene glycol methyl ether acetate, and the preparation method includes drying treatment, preparation of component A, preparation of component B and blending of component A and component B In this way, the coating has high near-infrared reflectivity, high mid-to-far infrared reflectivity and low thermal conductivity. It can be applied to the exterior walls of buildings, which can significantly reduce the absorption of solar radiation energy by the exterior walls, and reduce the Indoor temperature, heat insulation temperature difference can reach more than 10 ℃, reduce air conditioning energy consumption.
Description
技术领域technical field
本发明属于涂料技术领域，尤其涉及到一种水性聚氨酯反射隔热涂料的制备方法。The invention belongs to the technical field of coatings, and in particular relates to a preparation method of a water-based polyurethane reflective heat-insulating coating.
背景技术Background technique
研究者在反射隔热涂料方面做了很多工作，己经有一些热反射涂料在某些领域得到应用，如申请号为201110114940.X的白色反射隔热涂料、申请号为201110096710.5的白色热反射节能涂料、专利号为ZL200910137811.5的一种低太阳吸收节能型中灰色船壳面漆、申请号为201110093093.3的一种具有反射隔热功能的彩色涂料等。Researchers have done a lot of work on reflective heat-insulating coatings, and some heat-reflecting coatings have been applied in certain fields, such as white reflective heat-insulating coatings with application number 201110114940.X, white heat-reflective energy-saving coatings with application number 201110096710. Coatings, patent number ZL200910137811.5, a low-solar-absorption energy-saving medium-gray hull finish paint, application number 201110093093.3, a color coating with reflective and heat-insulating functions, etc.
在水性反射隔热涂料方面，申请号为201010623863.6公开了一种海灰色水性聚氨酯热反射涂料及其用途，但其没有指明具体的降温效果。In terms of water-based reflective heat-insulating coatings, application number 201010623863.6 discloses a sea-gray water-based polyurethane heat-reflecting coating and its application, but it does not specify a specific cooling effect.
上述反射隔热涂料主要通过热反射或隔热单个机理进行降温，没有综合考虑到反射、隔热和辐射协同降温的问题，所采用的热反射颜料主要为有机颜料，存在易失效问题，而黑色通过红黄蓝三种颜料复配获得，多种颜料的使用增加了调色难度。The above-mentioned reflective and heat-insulating coatings mainly cool down through a single mechanism of heat reflection or heat insulation. The problem of synergistic cooling of reflection, heat insulation and radiation is not considered comprehensively. The heat-reflecting pigments used are mainly organic pigments, which are prone to failure, while black It is obtained by compounding three kinds of pigments, red, yellow and blue. The use of multiple pigments increases the difficulty of color matching.
发明内容Contents of the invention
针对上述问题，本发明提供了一种水性聚氨酯反射隔热涂料的制备方法，本发明通过选用水性脂肪族聚氨酯成膜物、低热导率二氧化硅气凝胶、高近红外反射复合氧化物颜料、高中远红外发射率填料和配方设计，研制出降温效果显著和施工性能良好的水性聚氨酯反射隔热涂料，具有较低的导热系数和高的近红外反射率及中远红外发射率，降温效果明显，可用于建筑、船舶、石化储罐和机车等暴露部位，提高舒适度并降低空调能耗。In view of the above problems, the present invention provides a method for preparing a water-based polyurethane reflective heat-insulating coating. The present invention selects water-based aliphatic polyurethane film formers, silica airgel with low thermal conductivity, and high near-infrared reflective composite oxide pigments. , High, medium and far-infrared emissivity fillers and formula design, developed a water-based polyurethane reflective heat-insulating coating with significant cooling effect and good construction performance, with low thermal conductivity and high near-infrared reflectivity and mid-to-far infrared emissivity, the cooling effect is obvious , can be used in exposed parts such as buildings, ships, petrochemical storage tanks and locomotives to improve comfort and reduce air-conditioning energy consumption.
为实现上述发明目的，本发明采用如下技术方案：In order to realize the above-mentioned purpose of the invention, the present invention adopts following technical scheme:
一种水性聚氨酯反射隔热涂料的制备方法，所述水性聚氨酯反射隔热涂料中由甲组分和乙组分勾兑而成，在甲组分中含有水性多羟基丙烯酸树脂、高近红外反射白颜料、二氧化硅气凝胶、填料、高近红外反射黄颜料、高近红外反射棕颜料、高近红外反射红颜料、高近红外反射蓝颜料、高近红外反射黑颜料、去离子水以及助剂，其中高近红外反射白颜料、高近红外反射黄颜料、高近红外反射棕颜料、高近红外反射红颜料、高近红外反射蓝颜料和高近红外反射黑颜料构成高近红外反射颜料系，在乙组分中含有基于HDI的水性脂肪族聚异氰酸酯、丙二醇甲醚醋酸酯，制备方法包含烘干处理、甲组分制备、乙组分制备及甲组分和乙组分的勾兑方式四个过程，本发明的特征如下：A method for preparing a water-based polyurethane reflective heat-insulating coating, the water-based polyurethane reflective heat-insulating coating is formed by blending component A and component B, and component A contains water-based polyhydroxy acrylic resin, high near-infrared reflective white Pigments, silica aerogels, fillers, high near-infrared reflective yellow pigments, high near-infrared reflective brown pigments, high near-infrared reflective red pigments, high near-infrared reflective blue pigments, high near-infrared reflective black pigments, deionized water and Additives, in which high near-infrared reflective white pigment, high near-infrared reflective yellow pigment, high near-infrared reflective brown pigment, high near-infrared reflective red pigment, high near-infrared reflective blue pigment and high near-infrared reflective black pigment constitute a high near-infrared reflective Pigment system, containing HDI-based water-based aliphatic polyisocyanate and propylene glycol methyl ether acetate in component B, the preparation method includes drying treatment, preparation of component A, preparation of component B and blending of component A and component B Mode four processes, the features of the present invention are as follows:
均按重量份的甲组分中：水性多羟基丙烯酸树脂52～61、高近红外反射白颜料5～25、二氧化硅气凝胶0.1～4.0、填料0.5～15.0、高近红外反射黄颜料0～1.5、高近红外反射棕颜料0～1.0、高近红外反射红颜料0～1.6、高近红外反射蓝颜料0～2.4、高近红外反射黑颜料0～1.1、去离子水1.0～19.5、助剂0.3～20.0；In component A in parts by weight: water-based polyhydroxy acrylic resin 52-61, high near-infrared reflective white pigment 5-25, silica airgel 0.1-4.0, filler 0.5-15.0, high near-infrared reflective yellow pigment 0～1.5, high near infrared reflection brown pigment 0～1.0, high near infrared reflection red pigment 0～1.6, high near infrared reflection blue pigment 0～2.4, high near infrared reflection black pigment 0～1.1, deionized water 1.0～19.5 , additives 0.3 ~ 20.0;
均按重量份的乙组分中：基于HDI的水性脂肪族聚异氰酸酯65～85；丙二醇甲醚醋酸酯15～35；In component B in parts by weight: HDI-based water-based aliphatic polyisocyanate 65-85; propylene glycol methyl ether acetate 15-35;
上述高近红外反射白颜料是磷酸锌钠、二氧化钛中的任一种，或是其两种；The above-mentioned high near-infrared reflective white pigment is any one of sodium zinc phosphate and titanium dioxide, or two of them;
上述填料是碳化硅、二氧化锆、石灰石、石膏中的任一种，或是其任两种，或是其任三种，或是四种；The above-mentioned filler is any one of silicon carbide, zirconia, limestone, and gypsum, or any two of them, or any three of them, or four of them;
上述高近红外反射黄颜料是铋、锌、磷混合氧化物Bi2O3-ZnO-P2O5；The above-mentioned high near-infrared reflection yellow pigment is bismuth, zinc, phosphorus mixed oxide Bi 2 O 3 -ZnO-P 2 O 5 ;
上述高近红外反射棕颜料是锰、锌、磷混合氧化物MnO2-ZnO-P2O5；The above-mentioned high near-infrared reflective brown pigment is manganese, zinc, phosphorus mixed oxide MnO 2 -ZnO-P 2 O 5 ;
上述高近红外反射红颜料是铁、锌、磷混合氧化物Fe3O4-ZnO-P2O5；The above-mentioned high near-infrared reflective red pigment is iron, zinc, phosphorus mixed oxide Fe 3 O 4 -ZnO-P 2 O 5 ;
上述高近红外反射蓝颜料是钴、锌、磷混合氧化物CoO-ZnO-P2O5；The above-mentioned high near-infrared reflective blue pigment is cobalt, zinc, phosphorus mixed oxide CoO-ZnO-P 2 O 5 ;
上述高近红外反射黑颜料是铜掺杂磷酸锌钠NaZn(Cu)PO4；The above-mentioned high near-infrared reflective black pigment is copper-doped sodium zinc phosphate NaZn(Cu)PO 4 ;
上述助剂中含有分散剂、消泡剂和润湿流平剂，分散剂的用量在助剂中占0.1～12.0重量份，消泡剂的用量在助剂中占0.1～5.8重量份，润湿流平剂的用量在助剂中占0.1～11.2重量份，分散剂是BYK190，消泡剂是BYK028、BYK019中的任一种，润湿流平剂是BYK345；The above-mentioned auxiliary agents contain dispersants, defoamers and wetting and leveling agents. The amount of dispersants accounts for 0.1-12.0 parts by weight in the auxiliary agents, and the amount of anti-foaming agents accounts for 0.1-5.8 parts by weight in the auxiliary agents. The amount of wet leveling agent accounts for 0.1-11.2 parts by weight in the additive, the dispersant is BYK190, the defoamer is any one of BYK028 and BYK019, and the wetting and leveling agent is BYK345;
上述基于HDI的水性脂肪族聚异氰酸酯是基于六亚甲基二异氰酯的水性脂肪族聚异氰酸酯；The above-mentioned water-based aliphatic polyisocyanate based on HDI is a water-based aliphatic polyisocyanate based on hexamethylene diisocyanate;
①烘干处理：将高近红外反射白颜料、高发射率填料、高近红外反射黄颜料、高近红外反射棕颜料、高近红外反射红颜料、高近红外反射蓝颜料、高近红外反射黑颜料、二氧化硅气凝胶及填料分别放入各自的烘箱中进行烘干，烘箱的温度控制在110±5℃，烘干的时间控制在2～12h，待自然冷却后分别袋装密封备用并做出对应的标识；①Drying treatment: High near-infrared reflective white pigment, high emissivity filler, high near-infrared reflective yellow pigment, high near-infrared reflective brown pigment, high near-infrared reflective red pigment, high near-infrared reflective blue pigment, high near-infrared reflective Put the black pigment, silica airgel and filler into their respective ovens for drying. The temperature of the oven is controlled at 110±5°C, and the drying time is controlled at 2-12 hours. After natural cooling, they are sealed in bags respectively. Reserve and make corresponding identification;
②甲组分制备：根据上述甲组分的重量份配比，将水性多羟基丙烯酸树脂、助剂和部分去离子水加入到高速分散机中，高速分散机的线速度控制在1.5～2.5m/s，分散搅拌的时间控制在5～45min，之后加入高近红外反射白颜料、高近红外反射黄颜料、高近红外反射棕颜料、高近红外反射红颜料、高近红外反射蓝颜料、高近红外反射黑颜料、二氧化硅气凝胶及填料，在3.5～5.0m/s的线速度内分散搅拌15～60min，待分散均匀后再采用砂磨研磨0.5～4h至粒度40μm以下，将其剩去离子水调节甲组分的粘度，经过滤包装后制备出甲组分；②Preparation of component A: According to the weight ratio of the above component A, add water-based polyhydroxy acrylic resin, additives and part of deionized water into the high-speed disperser, and control the line speed of the high-speed disperser at 1.5-2.5m /s, the time of dispersing and stirring is controlled at 5-45min, then add high near-infrared reflective white pigment, high near-infrared reflective yellow pigment, high near-infrared reflective brown pigment, high near-infrared reflective red pigment, high near-infrared reflective blue pigment, High near-infrared reflective black pigments, silica airgel and fillers are dispersed and stirred at a linear speed of 3.5-5.0m/s for 15-60 minutes, and after the dispersion is uniform, they are ground for 0.5-4 hours with a sand mill until the particle size is below 40μm. The remaining deionized water is used to adjust the viscosity of the first component, and the first component is prepared after filtering and packaging;
③乙组分制备：根据上述乙组分的重量份配比，将基于HDI的水性脂肪族聚异氰酸酯和丙二醇甲醚醋酸酯进行混合均匀即可制备出乙组分；③Preparation of Component B: According to the weight ratio of the above-mentioned Component B, the HDI-based water-based aliphatic polyisocyanate and propylene glycol methyl ether acetate are evenly mixed to prepare Component B;
④甲组分和乙组分的勾兑方式：甲组分:乙组分＝{4～10}:1，按此勾兑比例混合均匀即可制备出水性聚氨酯反射隔热涂料。④The blending method of component A and component B: component A:component B={4～10}:1, according to this blending ratio, the water-based polyurethane reflective heat insulation coating can be prepared by mixing evenly.
由于采用如上所述技术方案，本发明产生如下积极效果：Owing to adopting above-mentioned technical scheme, the present invention produces following positive effect:
1、本发明的水性聚氨酯反射隔热涂料具有较高的近红外反射率和较高的中远红外反射率以及较低的热导率，可应用于建筑物外墙，能显著减少外墙对太阳光辐射能量的吸收，降低室内温度，隔热温差可达10℃以上，进而减少空调能耗。1. The water-based polyurethane reflective heat-insulating coating of the present invention has higher near-infrared reflectivity, higher mid-to-far infrared reflectivity and lower thermal conductivity, can be applied to building exterior walls, and can significantly reduce the impact of exterior walls on the sun. The absorption of light radiation energy reduces the indoor temperature, and the temperature difference of heat insulation can reach more than 10°C, thereby reducing the energy consumption of air conditioning.
2、本发明的水性聚氨酯反射隔热涂料还可推广应用到厂房、化工容器、钢结构、地坪、船舶甲板及上层建筑等领域，起到降温效果，经济效果明显，市场应用前景广阔。2. The water-based polyurethane reflective heat-insulating coating of the present invention can also be extended and applied to the fields of factory buildings, chemical containers, steel structures, floors, ship decks and superstructures, etc., and has a cooling effect, obvious economic effects, and broad market application prospects.
具体实施方式detailed description
本发明是一种水性聚氨酯反射隔热涂料的制备方法，所述水性聚氨酯反射隔热涂料中由甲组分和乙组分勾兑而成，在甲组分中含有水性多羟基丙烯酸树脂、高近红外反射白颜料、二氧化硅气凝胶、填料、高近红外反射黄颜料、高近红外反射棕颜料、高近红外反射红颜料、高近红外反射蓝颜料、高近红外反射黑颜料、去离子水以及助剂。高近红外反射白颜料是磷酸锌钠、二氧化钛中的任一种，或是其两种。填料是碳化硅、二氧化锆、石灰石、石膏中的任一种，或是其任两种，或是其任三种，或是四种。高近红外反射黄颜料是铋、锌、磷混合氧化物Bi2O3-ZnO-P2O5。高近红外反射棕颜料是锰、锌、磷混合氧化物MnO2-ZnO-P2O5。高近红外反射红颜料是铁、锌、磷混合氧化物Fe3O4-ZnO-P2O5。高近红外反射蓝颜料是钴、锌、磷混合氧化物CoO-ZnO-P2O5。高近红外反射黑颜料是铜掺杂磷酸锌钠NaZn(Cu)PO4。助剂中含有分散剂、消泡剂和润湿流平剂，分散剂是BYK190，消泡剂是BYK028、BYK019中的任一种，润湿流平剂是BYK345，BYK190是一种水性聚氨酯体系多功能分散剂，BYK028和BYK019是一种水性聚氨酯体系有机硅消泡剂，BYK345是一种水性聚氨酯体系润湿流平剂，BYK190、BYK028、BYK019及BYK345均由拜耳公司生产。The invention relates to a preparation method of a water-based polyurethane reflective heat-insulating coating. The water-based polyurethane reflective heat-insulating coating is formed by blending component A and component B. The component A contains water-based polyhydroxy acrylic resin, high-near Infrared reflective white pigment, silica airgel, filler, high near-infrared reflective yellow pigment, high near-infrared reflective brown pigment, high near-infrared reflective red pigment, high near-infrared reflective blue pigment, high near-infrared reflective black pigment, Ionized water and additives. The high near-infrared reflective white pigment is any one of sodium zinc phosphate, titanium dioxide, or two of them. The filler is any one of silicon carbide, zirconia, limestone, and gypsum, or any two of them, or any three of them, or four of them. The high near-infrared reflection yellow pigment is bismuth, zinc and phosphorus mixed oxide Bi 2 O 3 -ZnO-P 2 O 5 . The brown pigment with high near-infrared reflection is manganese, zinc and phosphorus mixed oxide MnO 2 -ZnO-P 2 O 5 . The red pigment with high near-infrared reflection is Fe 3 O 4 -ZnO-P 2 O 5 mixed oxide of iron, zinc and phosphorus. The high near-infrared reflection blue pigment is cobalt, zinc, phosphorus mixed oxide CoO-ZnO-P 2 O 5 . The high near infrared reflective black pigment is copper doped sodium zinc phosphate NaZn(Cu)PO 4 . The additives contain dispersant, defoamer and wetting and leveling agent. The dispersing agent is BYK190, the defoaming agent is any one of BYK028 and BYK019, the wetting and leveling agent is BYK345, and BYK190 is a water-based polyurethane system Multifunctional dispersant, BYK028 and BYK019 are silicone defoamers for waterborne polyurethane system, BYK345 is a wetting and leveling agent for waterborne polyurethane system, BYK190, BYK028, BYK019 and BYK345 are all produced by Bayer.
在乙组分中含有基于HDI的水性脂肪族聚异氰酸酯和丙二醇甲醚醋酸酯。Contains HDI-based waterborne aliphatic polyisocyanate and propylene glycol methyl ether acetate in the B component.
在本发明的上述组分中：Among the above-mentioned components of the present invention:
1.用于反射隔热涂料的水性多羟基丙烯酸树脂和基于HDI的水性脂肪族聚异具有较低的可见光、红外光吸收率和较好的耐候性，水性多羟基丙烯酸树脂和基于HDI的水性脂肪族聚异氰酸酯勾兑后形成水性聚氨酯，水性聚氨酯含有大量键能较高的C＝N键、耐候性好，其分子结构中C-O-C、C＝O、O-H等吸热基团较少，而分子键能较大不易被太阳光照射而裂解，基于HDI的水性脂肪族聚异氰酸酯是基于六亚甲基二异氰酯的水性脂肪族聚异氰酸酯。1. Water-based polyhydroxy acrylic resin and HDI-based water-based aliphatic polyisocyanate for reflective insulation coatings have low visible light, infrared light absorption rate and good weather resistance, water-based polyhydroxy acrylic resin and HDI-based water-based Aliphatic polyisocyanate is blended to form water-based polyurethane. Water-based polyurethane contains a large number of C=N bonds with high bond energy and good weather resistance. There are few endothermic groups such as C-O-C, C=O, O-H in its molecular structure, and molecular bonds It can be relatively difficult to be cracked by sunlight, and the HDI-based water-based aliphatic polyisocyanate is a water-based aliphatic polyisocyanate based on hexamethylene diisocyanate.
2.选择高近红外反射颜料作为主要着色颜料，提高涂层的热反射性能。达到地球表面太阳光辐射能量分布大致为：紫外光5％、可见光45％、红外光50％。可见光部分的反射主要由涂料的颜色决定，颜色越深，可见光的反射率就越低。对于特定的颜色，如深灰色，可见光的反射率已经确定，所以总太阳能反射比主要由其红外反射率决定。调制深色热反射涂料的关键在于选择高近红外反射的深色颜料。本发明采用铜掺杂磷酸锌钠NaZn(Cu)PO4高近红外反射率深色材料作为黑色颜料，磷酸锌钠、二氧化钛中的任一种或是两种作为高近红外反射白色颜料，钴、锌、磷混合物CoO-ZnO-P2O5作为高近红外反射蓝色颜料，铁、锌、磷混合物Fe3O4-ZnO-P2O5作为高近红外反射红色颜料，铋、锌、磷混合混合物Bi2O3-ZnO-P2O5作为高近红外反射黄色颜料，锰、锌、磷混合物MnO2-ZnO-P2O5作为高近红外反射棕色颜料。高近红外反射白颜料、高近红外反射黄颜料、高近红外反射棕颜料、高近红外反射红颜料、高近红外反射蓝颜料和高近红外反射黑颜料构成高近红外反射颜料系，该颜料系应根据需求而定，这也是有些颜料用量为零的原因之一。2. Select high near-infrared reflective pigments as the main coloring pigments to improve the heat reflection performance of the coating. The energy distribution of solar radiation reaching the surface of the earth is roughly: 5% of ultraviolet light, 45% of visible light, and 50% of infrared light. The reflection of visible light is mainly determined by the color of the paint, the darker the color, the lower the reflectance of visible light. For a particular color, such as dark gray, the reflectance of visible light is already determined, so the total solar reflectance is mainly determined by its infrared reflectance. The key to formulating dark heat reflective coatings is to choose dark pigments with high near-infrared reflection. The present invention adopts copper-doped sodium zinc phosphate NaZn (Cu) PO 4 high near-infrared reflectance dark material as black pigment, any one or both in sodium zinc phosphate and titanium dioxide are used as high near-infrared reflection white pigment, cobalt , zinc, phosphorus mixture CoO-ZnO-P 2 O 5 as a high near-infrared reflective blue pigment, iron, zinc, phosphorus mixture Fe 3 O 4 -ZnO-P 2 O 5 as a high near-infrared reflective red pigment, bismuth, zinc , phosphorus mixture Bi 2 O 3 -ZnO-P 2 O 5 as high near-infrared reflective yellow pigment, manganese, zinc, phosphorus mixture MnO 2 -ZnO-P 2 O 5 as high near-infrared reflective brown pigment. High near-infrared reflective white pigments, high near-infrared reflective yellow pigments, high near-infrared reflective brown pigments, high near-infrared reflective red pigments, high near-infrared reflective blue pigments and high near-infrared reflective black pigments constitute high near-infrared reflective pigments. The pigment system should be determined according to the demand, which is one of the reasons why the amount of some pigments is zero.
3.添加填料可以提高涂层红外发射率：彩色涂层在可见光波段具有高的吸收率，在近红外波段也有一定的吸收，通过提高深色涂层的发射率，从而将到达其表面的太阳光辐射能量转化为热反射电磁波辐射到大气中，进而提高其降温性能。选择碳化硅、二氧化锆、石灰石、石膏作为功能填料，可使涂层能够以热发射的形式将吸收的热量辐射掉，从而促使被涂物体室内室外保持同样的降温速率。3. Adding fillers can increase the infrared emissivity of the coating: the colored coating has a high absorption rate in the visible light band, and also has a certain absorption in the near-infrared band. By increasing the emissivity of the dark coating, the sun that reaches its surface The energy of light radiation is converted into heat and reflects electromagnetic waves to radiate into the atmosphere, thereby improving its cooling performance. Choosing silicon carbide, zirconia, limestone, and gypsum as functional fillers can enable the coating to radiate the absorbed heat in the form of heat emission, thereby promoting the same cooling rate indoors and outdoors of the coated object.
4.二氧化硅气凝胶可以提高涂层的隔热效果：太阳光到达涂层表面，除了发生一部分反射，还有一部分进入涂层内部。超低热导率的二氧化硅气凝胶作为填料，可以极大减缓热量在涂层中的传导速率，为涂层辐射提供时间，从而极大提高涂层的隔热效果。4. Silica airgel can improve the heat insulation effect of the coating: when sunlight reaches the surface of the coating, in addition to a part of reflection, part of it enters the interior of the coating. Silica airgel with ultra-low thermal conductivity is used as a filler, which can greatly slow down the heat conduction rate in the coating and provide time for the coating to radiate, thereby greatly improving the thermal insulation effect of the coating.
下表是本发明的三个最佳实施例配比，但本发明并不限于三个实施例，未述部分以本发明的技术方案为准。本发明的水性聚氨酯反射隔热涂料是一种双组份化学反应固化型涂料，该涂料可采用双组份高压无气喷涂、高压有气喷涂、辊涂、刷涂进行涂装，推荐涂装的厚度为80μm。The following table is the ratio of the three best embodiments of the present invention, but the present invention is not limited to the three embodiments, and the undescribed part is subject to the technical solution of the present invention. The water-based polyurethane reflective heat-insulating coating of the present invention is a two-component chemical reaction curing coating. The coating can be coated by two-component high-pressure airless spraying, high-pressure air spraying, roller coating, and brushing. Recommended coating The thickness is 80 μm.
根据例上表并参见所述技术方案即可制备出三种水性聚氨酯反射隔热涂料。Three kinds of water-based polyurethane reflective heat-insulating coatings can be prepared according to the above table and referring to the technical scheme.
三个实施例的参考检测结果见下表。The reference detection results of the three embodiments are shown in the table below.
通过上表可以明显看出：上述各实施例涂层的太阳能反射率大于0.81，半球发射率大于0.86，隔热温差大于10℃，说明降温性能优异。而涂层耐盐雾性、耐紫外人工老化性以及耐候性等耐环境抗力指标均较高，说明涂层的耐候性很好。涂层的附着力大于4MPa，说明涂层的附着强度优异。It can be clearly seen from the above table that the solar reflectance of the coatings in the above embodiments is greater than 0.81, the hemispherical emissivity is greater than 0.86, and the heat insulation temperature difference is greater than 10°C, indicating that the cooling performance is excellent. The environmental resistance indicators such as salt spray resistance, ultraviolet artificial aging resistance and weather resistance of the coating are all high, indicating that the weather resistance of the coating is very good. The adhesion of the coating is greater than 4MPa, indicating that the adhesion of the coating is excellent.
总体而言，采用本发明技术方案制备出的水性聚氨酯反射隔热涂料，其主要技术指标的参考值要求见下表。In general, the reference value requirements of the main technical indicators of the water-based polyurethane reflective heat-insulating coating prepared by adopting the technical solution of the present invention are shown in the table below.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510694914.7A CN105238247A (en) | 2015-10-21 | 2015-10-21 | Preparation method of waterborne polyurethane reflective insulation coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510694914.7A CN105238247A (en) | 2015-10-21 | 2015-10-21 | Preparation method of waterborne polyurethane reflective insulation coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105238247A true CN105238247A (en) | 2016-01-13 |
Family
ID=55036083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510694914.7A Pending CN105238247A (en) | 2015-10-21 | 2015-10-21 | Preparation method of waterborne polyurethane reflective insulation coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105238247A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433431A (en) * | 2016-09-12 | 2017-02-22 | 大连辉华新材料有限公司 | Heat insulating material for recycling scrap polyurethane foam and preparation method of heat insulating material |
| CN107189660A (en) * | 2017-06-22 | 2017-09-22 | 广州市维思涂料科技有限公司 | A kind of composite liquefied granite coating of reflective insulation and preparation method thereof |
| CN108977018A (en) * | 2018-05-04 | 2018-12-11 | 无锡市海轮涂料有限公司 | A kind of ship heat-insulation and heat-preservation aqueous polyurethane finishing coat |
| EP4265662A1 (en) * | 2022-04-20 | 2023-10-25 | Saint-Gobain Weber France | Polyurethane-based coatings with high solar reflectance index |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559024A (en) * | 2010-12-30 | 2012-07-11 | 海洋化工研究院 | Aqueous polyurethane heat reflection coating and application thereof |
| GB2490900A (en) * | 2011-05-16 | 2012-11-21 | Akzo Nobel Coatings Int Bv | Infrared-reflective paint |
| CN104371531A (en) * | 2014-12-08 | 2015-02-25 | 中国海洋石油总公司 | High-reflective acrylic polyurethane coating composition |
| CN104530958A (en) * | 2014-12-08 | 2015-04-22 | 中国船舶重工集团公司第七二五研究所 | Dark low solar energy absorption coating and preparation method thereof |
| CN104559724A (en) * | 2015-01-14 | 2015-04-29 | 北京京能恒基新材料有限公司 | Water-tolerant and sewage-proof dual-component solar heat reflecting coating and preparation method thereof |
-
2015
- 2015-10-21 CN CN201510694914.7A patent/CN105238247A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559024A (en) * | 2010-12-30 | 2012-07-11 | 海洋化工研究院 | Aqueous polyurethane heat reflection coating and application thereof |
| GB2490900A (en) * | 2011-05-16 | 2012-11-21 | Akzo Nobel Coatings Int Bv | Infrared-reflective paint |
| CN104371531A (en) * | 2014-12-08 | 2015-02-25 | 中国海洋石油总公司 | High-reflective acrylic polyurethane coating composition |
| CN104530958A (en) * | 2014-12-08 | 2015-04-22 | 中国船舶重工集团公司第七二五研究所 | Dark low solar energy absorption coating and preparation method thereof |
| CN104559724A (en) * | 2015-01-14 | 2015-04-29 | 北京京能恒基新材料有限公司 | Water-tolerant and sewage-proof dual-component solar heat reflecting coating and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李东光等: "《实用化工产品配方与制备（九）》", 31 August 2013, 中国纺织出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433431A (en) * | 2016-09-12 | 2017-02-22 | 大连辉华新材料有限公司 | Heat insulating material for recycling scrap polyurethane foam and preparation method of heat insulating material |
| CN106433431B (en) * | 2016-09-12 | 2018-09-28 | 大连辉华新材料有限公司 | A kind of heat-barrier material and preparation method thereof of regeneration waste polyurethane foam |
| CN107189660A (en) * | 2017-06-22 | 2017-09-22 | 广州市维思涂料科技有限公司 | A kind of composite liquefied granite coating of reflective insulation and preparation method thereof |
| CN107189660B (en) * | 2017-06-22 | 2018-04-10 | 广州市维思涂料科技有限公司 | A kind of composite liquefied granite coating of reflective insulation and preparation method thereof |
| CN108977018A (en) * | 2018-05-04 | 2018-12-11 | 无锡市海轮涂料有限公司 | A kind of ship heat-insulation and heat-preservation aqueous polyurethane finishing coat |
| EP4265662A1 (en) * | 2022-04-20 | 2023-10-25 | Saint-Gobain Weber France | Polyurethane-based coatings with high solar reflectance index |
| WO2023203081A1 (en) * | 2022-04-20 | 2023-10-26 | Saint-Gobain Weber France | Polyurethane-based coatings with high solar reflectance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102690559B (en) | Aqueous heat-insulating anticorrosive paint | |
| CN105331220B (en) | A kind of composite metal roof insulation water-repellent paint and preparation method thereof | |
| CN101709193B (en) | Water-borne acrylic type water-proof heat-insulating paint | |
| CN114539861B (en) | A kind of water-based radiant refrigeration coating and preparation method thereof | |
| CN104861805B (en) | A kind of colourama reflection aqueous architectural coating and its compound method | |
| CN101200611A (en) | A heat-insulating coating with radiation heat insulation and barrier type and preparation method thereof | |
| WO2017028471A1 (en) | Water-based reflective heat-insulating faux stone texture coating system for construction and preparation method thereof | |
| CN103214905A (en) | Thermochromic heat insulation coating and preparation method thereof | |
| CN102002293B (en) | Thin multifunctional solar reflecting coating and preparation method thereof | |
| CN101210128A (en) | Thin type reflective insulation exterior wall paint | |
| CN103740215A (en) | High-performance architectural reflective thermal insulation coating, and preparation method and applications thereof | |
| CN103666147A (en) | Reflection, radiation and blocking type external wall heat insulation coating | |
| CN106380972B (en) | Colorful complex layer coating with incubation and thermal insulation function and preparation method thereof | |
| CN104530958A (en) | Dark low solar energy absorption coating and preparation method thereof | |
| CN101824258A (en) | Waterborne reflective heat-insulating building coating | |
| CN104745013A (en) | Heat-insulating coating for external wall | |
| CN102533011A (en) | Thermosetting reflection thermal insulation coating and preparation method thereof | |
| CN105238247A (en) | Preparation method of waterborne polyurethane reflective insulation coating | |
| CN102911579A (en) | Heat reflection-obstruction composite energy-saving coating material and preparation method thereof | |
| CN103396715A (en) | Colorful heat-reflection heat-insulation coating and production method thereof | |
| CN105778676A (en) | Heat-insulating, waterproof and environment-friendly paint and preparation method thereof | |
| CN106752565A (en) | The not heated aqueous coating of the solarization of environmental protection and energy saving | |
| CN114316657B (en) | Reflective heat-insulation building coating system | |
| CN105713453A (en) | Method for preparing heat-insulation pigment painting paste with high infrared reflectivity for buildings | |
| CN102746753A (en) | Exterior wall paint for waterborne fluorocarbon reflection heat insulation building and preparation method of exterior wall paint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |
|
| RJ01 | Rejection of invention patent application after publication |