共查询到19条相似文献,搜索用时 140 毫秒
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为将绿色环保的辐射固化技术用于制备金属防腐涂料,分别选用了聚氨酯丙烯酸酯、双酚A型环氧丙烯酸酯以及改性双酚A型环氧丙烯酸酯作为涂料的主要成膜物质,选用紫外光(UV)、电子束(EB)2种固化方式以及5种辐照剂量(80 kGy、160 kGy、240 kGy、320 kGy、400 kGy)制备了一系列辐射固化防腐涂层。通过凝胶含量、双键转化率、基础性能、吸水率、电化学阻抗谱测试和盐雾试验探究了不同辐射固化方式和辐照剂量对涂层固化程度以及性能的影响。结果表明:多数情况下EB固化涂层的双键转化率和凝胶含量大于UV固化涂层;辐照剂量越大,涂层的双键转化率和凝胶含量越高;对于分子链刚性较大的树脂体系,辐照剂量过大时会严重影响涂层的附着力,致使涂层耐腐蚀性下降;对于分子链柔性较好的树脂体系,EB固化涂层由于固化程度较高,其耐腐蚀性优于UV固化涂层,且随着辐照剂量增加,涂层硬度、附着力和耐腐蚀性都有所提高;对于分子链柔性适中的树脂体系,EB固化涂层和UV固化涂层都具有较高的固化程度及较强的附着力,两者的耐腐蚀性并没有明显差异。 相似文献
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UV固化水性木器涂料的性能及影响因素 总被引:3,自引:2,他引:1
介绍了UV固化水性木器涂料与传统UV固化涂料、水性木器涂料的比较优势,侧重讨论了影响聚氨酯-丙烯酸酯水分散体UV固化动力学的影响因素,从而导出提高其UV固化速度与反应程度的可行方法,以及优于传统UV固化涂料的性能。 相似文献
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介绍了UV(紫外光固化)涂料的性能特点及钢琴外壳用UV面漆的涂饰工艺。通过UV涂料与NC(硝基涂料)、PU(聚氨酯涂料)、PE(聚酯涂料)的性能及涂装工艺的对比,探讨了UV涂料在钢琴涂饰中的发展方向。 相似文献
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紫外光固化涂料及其研究进展 总被引:8,自引:0,他引:8
介绍了紫外光(UV)固化涂料的特点及固化机理,综述了UV固化纳米涂料、UV固化有机硅涂料、UV固化超支化聚合物涂料等改良型UV固化涂料以及UV固化水性涂料和UV固化粉末涂料的研究进展。 相似文献
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紫外光(UV)固化涂料是以采用辐射固化技术为特征的环保节能型涂料。固化材料的各组分中,预聚物是光固化树脂的主体,它的性能基本决定了固化后材料的主要性能。重点讨论各类不同丙烯酸酯官能度化合物在紫外光固化涂料中的选用及配合,讨论了它们对涂料表面附着力、硬度、耐磨、耐腐等性能的影响。 相似文献
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综述了粉末涂料的特点、UV固化技术的优点和两者结合的优势 ,指出了 UV固化技术在涂料中发展的前景。 相似文献
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紫外光固化涂料的研究进展及发展趋势 总被引:1,自引:0,他引:1
紫外光固化涂料是一种新型绿色环保节能涂料,近年来发展迅速。本文重点综述了紫外光固化涂料的国内外发展概况,介绍了光固化涂料的固化原理、组成及性能,阐述了其研究及应用现状,指出水性化和粉末化将是紫外光固化涂料未来的发展方向。 相似文献
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氟碳涂料性能优越,涂层具有长效防腐性和耐候性,可广泛用于钢结构和桥梁等防腐蚀工程中,介绍了钢结构防护用的室温固化氟碳涂料研制工艺及应用情况。 相似文献
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简单介绍了木器涂料市场现状。从成本、效率、涂膜性能3个方面分析了UV木器涂料相比于传统木器涂料所具有的优势。并从涂装工艺、UV原材料、涂装设备等方面介绍了辐射固化技术在木器涂料中的最新应用进展,展望了UV木器涂料的发展趋势。 相似文献
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Günter Wuzella Andreas Kandelbauer Arunjunai Raj Mahendran Uwe Müller Alfred Teischinger 《Progress in Organic Coatings》2014
Powder coating of engineered wood panels such as medium density fibreboards (MDF) is gaining industrial interest due to ecological and economic advantages of powder coating technology. For transferring powder coating technology to temperature-sensitive substrates like MDF, a thorough understanding of the melting, flowing and curing behaviour of the used low-bake resins is required. In the present study, thermo-analysis in combination with iso-conversional kinetic data analysis as well as rheometry is applied to characterise the properties of an epoxy-based powder coating. Neat resin and cured powder coating films are examined in order to define an ideal production window within which the resin is preferably applied and processed to yield satisfactory surface performance on the one hand and without exposing the carrier MDF too high a temperature load on the other hand to prevent the panel from deteriorating in mechanical strength. In order to produce powder coated films of high surface gloss – a feature that has not yet successfully been realized on MDF with powder coatings – a new curing technology, in-mould surface finishing, has been applied. 相似文献
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Saskia Udding-Louwrier Richard A. Baijards E. Sjoerd de Jong 《Journal of Coatings Technology》2000,72(904):71-75
Radiation-curable powder coatings are now in the early stages of commercialization. For years, the coatings industry has sought
ways to lower the curing temperature of powder coatings. UV-curable powder coatings offer the possibility of curing powder
coatings at temperatures as low as 120°C. Radiation-curable powder coatings also offer high cure speed and relatively low
energy consumption. As each application requires its own coating performance, two different maleate-vinyl ether-based binders
for UV-curable powder coatings have been developed. With these binders the balance between flexibility and hardness of the
coating can be adjusted with proper formulation. In this paper, the curing characteristics and coating performance of several
UV-powder coating formulations are described. In addition, a comparison between conventional powder coatings and UV-powder
coatings is provided.
Presented at the 26th International Waterborne, High-Solids, and Powder Coatings Symposium, February 10–12, 1999, New Orleans,
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P.O. Box 615, 8000 AP Zwolle, The Netherlands. 相似文献
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概述了非溶剂型涂料发展趋势及聚氨酯粉末涂料的组成、固化原理、物化性能和主要技术指标。介绍了聚氨酯粉末涂料在摩托车发动机铝合金箱体涂装中的应用及涂装工艺。 相似文献