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考察了搅拌方式、涂膜方式、养护方式对聚合物水泥防水涂料、高弹厚质丙烯酸酯防水涂料、单组分聚氨酯防水涂料拉伸性能的影响,分析得出上述防水涂料最合适的施工操作方法,并提出了不同种类防水涂料的施工工艺改进方法。 相似文献
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随着当前我国科技水平的不断提高和建筑行业的持续发展,在建筑工程中越来越多的新型防水涂料得到广泛的应用,其不仅可以提高整体的建设效果,还有助于解决在以往建设中存在的渗水问题。文章对防水涂料进行了概述,阐述了我国建筑防水涂料的现状,说明了防水涂料的特点,分析了防水涂料的具体应用,探讨了防水涂料的发展趋势。 相似文献
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介绍了国内聚氨酯防水涂料产品品种和标准发展演变的过程,对即将颁布实施的聚氨酯防水涂料新国标中列入的三大类产品即:通用型聚氨酯防水涂料(Ⅰ类),铁路桥梁非通行部位用高强度聚氨酯防水涂料(Ⅱ类)和桥梁、停车场、上人屋面等部位用聚氨酯防水涂料(Ⅲ类)的发展方向作了详细分析阐述,指出发展环保型聚氨酯防水涂料是大势所趋。 相似文献
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介绍了聚合物水泥防水涂料近期的进展.聚合物水泥防水涂料的机械喷涂施工处于起步阶段,由于其效率和施工质量,机械喷涂施工聚合物水泥防水涂料将会普遍.聚合物水泥防水涂料的环境保护标准愈来愈严格.自闭性聚合物水泥防水涂料自从国家标准实施以来在愈合机理的探究和产品研发上取得较大进展.最后对聚合物水泥防水涂料的发展方向做了预测. 相似文献
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Study on restraining frost growth at initial stage by hydrophobic coating and hygroscopic coating 总被引:2,自引:0,他引:2
For finding an effective method of restraining frost growth, the growing processes of frost on the surfaces of normal copper, hydrophobic coating (car wax coating) and hygroscopic coating (glycerol coating) were studied experimentally. The processes were recorded by photography. The quantitative analysis to the experimental images by digital image processing method was conducted. The results indicate that there is evident effect of hydrophobic coating and hygroscopic coating on frost growth at initial stage. Compared to normal copper surface, frost on the hydrophobic coating surface and on the hygroscopic coating surface appears later with lower frost height, sparse distribution and less aggradations of ice crystals. There is no evident effect of hygroscopic coating thickness on frost height. However, there is evident effect of hygroscopic coating thickness on frost height. The thicker the coating is, the effect on frost growth is bigger. Therefore, frost growth can be restrained by both hydrophobic coating and hygroscopic coating at the initial stage of its formation, and application of hydrophobic coating and hygroscopic coating to heat exchanger in refrigeration and air conditioning equipments would be promising. 相似文献
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介绍了建筑涂料的定义及分类,阐述了建筑涂料的主要技术性能指标的含义和作用,分析了涂料的特点,并对溶剂型建筑涂料与水性建筑涂料进行了比较,最后对建筑外墙涂料的施工工艺及质量控制进行了论述,从而为建筑外墙涂料的材料选用及施工提供了理论依据。 相似文献
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钢结构表面涂层材料抗风沙冲蚀力学性能研究 总被引:1,自引:0,他引:1
分析了内蒙古中西部地区风沙冲蚀环境特征,通过测定钢结构涂层的厚度、密度、硬度、弹性模量、柔韧性、涂层与基材附着力等级等指标,研究了钢结构涂层材料抗冲蚀力学性能和不同风沙环境特征参数对涂层冲蚀的影响.结果表明:钢结构涂层的涂层硬度和弹性模量较小,而其柔韧性较大,涂层与基材附着力等级高;在风沙冲蚀过程中,涂层的冲蚀失重量均随着风沙流冲蚀速度的增大而显著增加,随着冲蚀下沙量的增加而增加,其在低角度冲蚀下的冲蚀失重量要大于高角度下的冲蚀失重量. 相似文献
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This paper reports the results of an experimental study of degradation in fire protection performance of two types of intumescent coating after different cycles of accelerated hydrothermal aging tests. Intumescent coating (without top coating) was applied to steel plate to make a test specimen. After subjecting the specimen to the aging test, fire test was carried out to obtain the steel plate temperature. In order to help understand the aging mechanism of intumescent coating, TGA tests, XPS tests and FTIR tests were also conducted on the intumescent coating after the accelerated aging test. In total, tests were performed on 56 intumescent coating protected steel specimens, of which 16 specimens were applied with type-U intumescent coating and the other 40 with type-A intumescent coating. Results of the degradation mechanism study reveal that the hydrophilic components of intumescent coating move to the surface of the coating and can be dissolved by moisture in the air, which can destroy the intended chemical reactions of these components with others and deter formation of the desired effective intumescent char. The consequence of this is reduced expansion of the intumescent coating and increased effective thermal conductivity. Compared to specimens without hydrothermal aging, after 42 cycles of hydrothermal aging (to simulate 20 years of exposure to an assumed exposure environment), the effective thermal conductivity of type-U intumescent coating was 50% higher and that of type-A intumescent coating 100% higher than that of the fresh coating. These increases in effective thermal conductivities resulted in increases in steel temperatures of up to 150 °C and 220 °C higher than the steel temperatures of the specimens without hydrothermal aging for the type-U intumescent coating and type-A intumescent coating specimens, respectively. 相似文献
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复合纳米TiO2建筑涂料 总被引:14,自引:0,他引:14
介绍了一种通过增强涂料功能性以提高建筑涂料质量的新方法 ,使之成为一种新型的多功能复合纳米建筑涂料。重点介绍了制备复合纳米TiO2 的几种方法 ,以解决为使涂料具有更多功能所添加的纳米TiO2 的分散性问题。同时论述了纳米TiO2 在建筑涂料中的应用情况 ,展望了纳米技术在建筑涂料中的应用前景 相似文献
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建筑外墙的装饰随着社会的发展日趋多样化,外墙涂饰在建筑外墙装饰中的应用越来越广泛。外墙涂饰的常见通病是外墙裂缝,影响涂饰的美观和装饰效果,所以外墙裂缝的防治至关重要。在涂饰基面墙体和抹灰、抗裂措施等严格按要求施工是高档外墙涂饰的基础。在涂饰施工中采用高品质的防水腻子、抗碱封闭底漆是提供优秀外墙涂饰产品的前提。新型外墙涂饰采用合成树脂幕墙涂饰系统是可以替代金属幕墙、石材幕墙、瓷砖的节能、环保且成本相对较低的建筑外墙装饰,是新型材料合成的新工艺装饰系统。 相似文献