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6 外墙乳胶漆的分类及性能要求
根据所使用乳液的不同,外墙乳胶漆可分为硅丙乳胶漆、聚氨酯丙烯酸乳胶漆、纯丙乳胶漆、苯丙乳胶漆和醋丙乳胶漆等.其中苯丙乳胶漆和纯丙乳胶漆因为性能满足要求,价格适中,是目前广泛使用的两种乳胶漆;由于硅丙乳胶漆的拒水性、透气性好,耐沾污性和耐久性优良,所以价格也较高,应用于一些性能要求较高的工... 相似文献
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通过平行对比试验,研究市场上的硅丙乳液在性能上的差异,并且与外墙纯丙和苯丙乳液中具有代表性的品牌进行对比,得出硅丙与纯丙和苯丙乳液在性能上的差异。 相似文献
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《上海涂料》2005,43(11):44-45
上海焦化化工发展商社地址:上海市龙吴路4394号产品:色素炭黑系列。乐意涂料(上海)有限公司地址:上海市青浦区徐泾镇明珠路528号产品:腻子;真石漆;三合一腻子底漆;油性封墙底漆;砂壁漆;特配弹性腻子;金属外墙漆;水性外墙封墙底漆;底漆;纯丙外墙漆;内墙漆;CLA超强抗污外墙漆;陶瓷乳胶漆;陶瓷内墙漆;工程色漆;弹性外墙漆;硅丙耐污外墙漆;外墙乳胶漆;内墙乳胶漆;木器漆;外保温系统;水性木器漆。苏州美亚美建筑涂料有限公司地址:江苏省吴江市莘塔府时路51号产品:改性苯丙乳液;弹性乳液;硅纯丙乳液;纯天然真石漆;弹性外墙涂料;外墙丝光乳胶漆;… 相似文献
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通过合成环氧改性硅丙乳液,选择功能性防锈颜填料、防锈剂及各种助剂,调整适当的PVC,配制成各项性能较好的水性防锈乳胶漆。 相似文献
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高性能外墙建筑涂料用树脂的开发 总被引:7,自引:1,他引:7
高性能外墙建筑涂料将是我国跨世纪的外墙涂料的主流产品。所谓高性能是指“三高一低”,即高耐候性、高耐沾污性、高保色性和低毒性。介绍了该涂料用有机硅丙烯酸树脂及粉状丙烯酸树脂的开发及其技术诀窍。 相似文献
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添加2-羟基-4-丙烯氧基二苯甲酮到硅丙乳液,制得抗紫外线硅丙乳液。考察了乳液的防晒指数(SPF值)和2-羟基-4-丙烯氧基二苯甲酮用量的关系。通过耐水性考察,确定了2-羟基-4-丙烯氧基二苯甲酮的最佳用量。实验结果表明:硅丙乳液的抗紫外线能力随着2-羟基-4-丙烯氧基二苯甲酮用量的增加而增强,2-羟基-4-丙烯氧基二苯甲酮的最佳用量为3%。用制备的抗紫外线硅丙乳液配制外墙仿砖涂料,根据JG/T 24—2000《合成树脂乳液砂壁状建筑涂料》标准检测所配制外墙仿砖涂料的相关性能,检测结果表明:制得的外墙仿砖涂料性能优良。 相似文献
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The development of glossy topcoat one-pot exterior paint formulations using water-based polyurethane/acrylates hybrid binders as well as the assessment of its properties through different conventional tests is discussed in this work. Polyurethane (PU) anionomer having 2-ethoxymethacrylate terminal groups was prepared following a prepolymer mixing process. This prepolymer was chain extended in aqueous solution and after addition of acrylic monomers radical polymerized. Paints were prepared using titanium dioxide as unique pigment. Panels coated with air-dried paints with three pigment to volume concentration (PVC) values were subjected to standardized tests including adhesion, flexibility, gloss and color determination. Accelerated weathering tests were carried out to evaluate changes in properties, especially gloss and color, of painted panels. Solvent-based acrylic and polyurethane paints were included as high gloss quality reference coatings. It was found that air-dried formulations based on hybrid polyurethane/acrylic with up to 50 wt.% of acrylic component, show a gloss as high as 70 and the relative gloss change after accelerated weathering test is lower than the pure solvent-based acrylic and polyurethane paints. 相似文献
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耐沾污性——硅丙外墙乳胶涂料的研制与应用 总被引:1,自引:0,他引:1
通过对硅丙乳液、颜填料、助剂等的选择,研制了耐沾污性——硅丙乳胶涂料,经过一年多的实际应用,涂膜颜色鲜艳,附着力强,耐候性、耐沾污性佳,技术指标超过国际优等品的要求。 相似文献
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W. J. Grigsby 《Journal of Coatings Technology and Research》2018,15(6):1273-1282
Condensed tannins, also known as proanthocyanidins, have been added as functional additives to acrylic-based clear coatings to promote polymer coating longevity and also stabilize timber color on accelerated and exterior weathering. When added at <?0.5% w/w content, native tannins and tannins modified with maleate groups extended coating performance >?20% compared to commercial hindered amine light stabilizers (HALS) and phenolic stabilizers used at comparable coating loadings. Other tannin chemical modifications such as methylcarboxylate groups were also associated with greater coating longevity beyond that achieved with the synthetic UV and antioxidant additives. This study has also revealed that tannin addition to acrylic coatings can act to photostabilize timber coloring on exterior exposure. While tannin use can contribute color to coatings, any color was rapidly bleached on UV exposure with a dependency on tannin content, degree of modification, and coating formulation pH. Moreover, through manipulating tannin addition levels, this tannin decolorization could offset typical wood darkening associated with UV exposure to provide low or no wood color change over longer exposure periods. With the photooxidative stability efficacy of tannins established on exterior exposure, condensed tannins in native and modified form offer potential as sustainable functional additives for the coatings sector. 相似文献