共查询到20条相似文献,搜索用时 93 毫秒
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粉末涂料是一种完全不含有溶剂,以粉末形态使用的涂料,根据成模机理的不同可分为热塑性及热固性粉末涂料两类,应用粉末涂料进行涂装具有工艺简单,劳动生产率高,能源省,节约溶剂,无污染等优点,它已受到人们的重视,得到快速发展,热固性粉末涂料更因其涂膜装饰性好,机械强度高,耐化学腐蚀性优异而倍受青睐,在我国,热固性粉末涂料的开发起步于六十年代中期,但一直发展缓慢,直到八十年代才有长足的发展,近几年发展势头十分迅猛,涂料品种由较单一的 氧型向着环氧-聚酯型,聚酯型及环氧丙烯酸型,丙烯酸型多品种转化,其中聚酯型粉末涂料兼具有丙烯酸型和环氧型粉末涂料的优点,集耐候,高强度,耐腐蚀于一身,具有良好的发展前景。 相似文献
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环氧粉末涂料具有优良的附着力,很好的机械强度和防腐性,且生产工艺稳定,产品质量可靠,因此在粉末涂料总产量中一直处于领先地位,得到广泛应用。但是,由于环氧树脂本身性能的限制,装饰性不够理想,难于达到溶剂型涂料和其它类型如聚酯粉末涂料、丙烯酸粉末涂料的水平。 相似文献
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粉末涂料、涂装的国外现状及最新动向(Ⅱ) 总被引:3,自引:0,他引:3
2.2耐性粉末涂料为使粉末涂料能全面取代优质的合成树脂涂料,适用于户外产品的涂装,国外涂料公司开发了很多品牌的高耐候性粉末涂料(聚酯系或丙烯酸树脂系);轿车用高装饰性的低温固化型(140℃/30min)高耐候性的丙烯酸粉末罩光清漆也已商品化。铝建材用粉末涂料[1],建材的表面处理一般用阳极氧化法,在欧美采用粉末涂装的约占30%,在亚洲各国采用粉末涂料的也在增加。如从设计师和都市的景观而言,从选用与建筑物周围的环境相协调的色彩来考虑,涂装占优势,且涂装可保用20a,因此建材的表面处理向涂装转移。美… 相似文献
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《广东涂料与胶粘剂》2004,(3):9-9
粉末涂料金属建筑材料也以其优异的耐久性、装饰性和加工成形性等特点,广泛应用于建筑物的各个方面。自20世纪70年代初粉末涂料问世以来,其在铝建材方面的应用迅速增长。目前,粉末涂料在铝建材方面的应用已由欧洲扩大到美洲、澳洲、远东、中东和非洲。在铝建材的涂装中,具有代表性的粉末涂料品种有环氧树脂、聚酯树脂、丙烯酸树脂及有机硅树脂粉末涂料等。作为应用,如部分铝框 相似文献
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<正> 溶剂型涂料目前是涂料工业的主要品种。从节省资源,防止污染出发,全世界都在着重开发水性涂料、高固份涂料、粉末涂料、辐射固化涂料和低温固化涂料等。其中水性涂料居主导地位。继醋酸乙烯均聚物乳液之后,丙烯酸乳液已经广泛地用于建筑涂料中。但是,以乳胶漆代替传统的高装饰性工业用漆还存在着某些困难。对乳液合成工艺加以改进,完全 相似文献
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采用珠光颜料与粉末涂料干混方法,研制成珠光型纯聚酯粉末涂料。该粉末涂料既具有珠光装饰效果,又保持了纯聚酯粉末涂料固有的优异性能。讨论了不同色彩珠光颜料在粉末涂料中的显色效果、珠光颜料的用量选择及制备工艺。列举了金相纯聚酯粉末涂料及涂层的性能指标。 相似文献
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M. Barletta 《Progress in Organic Coatings》2011,72(3):498-510
Metal-flake powder coatings are a special class of metallic paint finishes composed of two superimposed layers: a pigmented decorative base coat and an overlaying transparent protective top coat. In the present investigation, a novel curing procedure for such bilayer coatings is proposed. Flash IR pre-curing of the base coat promotes the formation of a surface diffusion barrier and limits movement of the decorative pigments and metal flakes around their initial positions. Oven baking after deposition of the top coat then completes curing of the bilayer coating. The influence of the IR intensity and irradiation time on the final properties of bilayer coatings was investigated. The visual appearance, surface morphology and scratch resistance were evaluated. Experimental findings revealed that the hybrid IR/oven baking curing procedure is a viable method for obtaining bilayer powder coatings with outstanding properties in a shorter processing time and with considerable energy savings. 相似文献
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介绍了目前我国内墙涂料的主要品种,叙述了内墙涂料的应用现状,并展望了我国内墙涂料的发展。我国内墙涂料的主要品种有丙烯酸酯乳液类、叔醋乳液类、聚醋酸乙烯乳液类和乙烯-乙酸乙烯酯(VAE)乳液类等,并有有光、丝光和平光等;所存在的主要问题是低端产品用量大,且这类涂料的配方因多是原材料供应商所提供,不尽合理。内墙涂料将主要朝着健康型和精细型发展,高颜料体积浓度的低成本涂料通过不断的努力研究也将逐步趋于合理。 相似文献
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装饰性镀层由于其鲜艳的外观而日益受到人们的青睐。为提高装饰性镀层的耐蚀性,延长其使用寿命,开发出一种无色透明涂膜。该涂膜由新型改性聚合物树脂和多种助剂组成,具有良好的耐磨、抗蚀及抗紫外线照射性能,工艺简单,可广泛用于镀层的表面防护与装饰。 相似文献
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The design of an innovative protective and thermal insulating coating is investigated. The coating is composed of two superimposed layers; the innermost layer consists of dried beech dust dispersed in a diluted polyurethane binder, while the outermost layer is a conventional decorative hybrid epoxy-polyester powder coating. Each layer was sprayed on a metal substrate and baked at moderate temperature to consolidate the coatings and establish their full properties. The morphological features, mechanical response, protective and thermal insulating performance of the coatings were experimentally analysed by varying their structure and dried beech dust concentration in the binder. These coatings exhibit high potential in terms of thermal insulation and also show remarkable behaviour in terms of visual appearance, adhesion to the substrate and long lasting. 相似文献
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Licia Barchi Ugo Bardi Stefano Caporali Mauro Fantini Alessandro Scrivani Andrea Scrivani 《Progress in Organic Coatings》2010
This paper is dedicated to the study of electrodeposited aluminium layers as anticorrosion protective coatings on metallic substrates. The aim of this approach is to propose a non-toxic alternative to the traditional nickel–chromium coating, for anticorrosive and decorative purposes. Aluminium was electrodeposited on carbon steel substrates from chloroaluminate based ionic liquids with and without the addition of 1,10-phenantroline. In the first case, the Al deposits are dense but dull, while in the latter homogeneous and bright coatings suitable for decorative purposes were achieved. 相似文献