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介绍了UV光固化涂料的特点及固化机理,并对紫外光固化涂料中的光引发剂、活性单体、低聚物等方面进行了综述。详细介绍了紫外光固化涂料的主要品种,包括UV光固化油性涂料、UV光固化水性涂料、UV光固化粉末涂料阐述了紫外光固化涂料的研究进展。 相似文献
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UV固化材料进展 总被引:17,自引:0,他引:17
杨永源 《精细与专用化学品》2001,9(7):9-12
由于UV固化技术固有的特点使其在近几年各个领域都获得了高速的发展,但所占市场份额仍然很小。经过学术界和各大公司的努力,目前已经在UV固化材料方面取得了可喜的成绩。稀释单体、预聚体在数量和质量上都有大幅度增加,发展方向是降低刺激性、低毒和赋予特殊功能:在双光子引发自由基聚合、阳离子光固化、杂混光固化、光产碱催化聚合、无光引发剂光固化、水基固化方面取得了一定的进展;UV粉末涂料克服了传统粉末涂料的缺点脱颖而出,成为近年来研究开发的热点;UV固化纳米材料更是集纳米技术、纳米材料、UV固化技术于一体,预计将会开发出具有特殊功能的新材料;UV固化技术在电子、信息领域也具有很好的发展前景。 相似文献
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光固化涂料的应用进展 总被引:9,自引:2,他引:9
光固化涂料是 1种新型的绿色环保节能型涂料 ,近几年发展很快。本文介绍了光固化涂料的基础理论、各个组成部分、国内外的近期发展、研究现状及其应用 ,指出了光固化水性涂料和粉末涂料是其发展的 2大热点 ,同时介绍了光固化涂料在抗蚀剂中的应用 ,制造印刷电路板及制成UV光固化油墨等。 相似文献
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综述了UV光固化压敏胶主要组成、固化机理,介绍了UV光固化聚丙烯酸酯压敏胶、UV光固化聚氨酯压敏胶、UV光固化聚酯类压敏胶及UV光固化热熔压敏胶的制备方法和研究进展,同时对UV光固化压敏胶的发展前景进行了展望。 相似文献
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光固化汽车涂料 总被引:4,自引:0,他引:4
洪啸吟 《精细与专用化学品》2004,12(8):6-7,21
介绍了光固化涂料和技术在汽车上的应用进展 ,包括光固化修补底漆、汽车面漆、塑料部件涂料、光固化粉末涂料、3D光固化设备与技术以及双重混杂光固化技术。 相似文献
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研究了热固性粉末涂料用作金属热喷涂涂层的封闭层及面层的防护技术,比较了分别喷涂环氧锌基重防腐粉末涂料、纯聚酯粉末涂料,喷涂环氧锌基重防腐粉末涂料后再喷涂纯聚酯粉末涂料以及热浸镀锌后喷涂纯聚酯粉末涂料等试样在不同盐雾和人工加速老化时间下的附着力.结果发现,只有熔融黏度偏低的环氧类粉末涂料适合用作封闭层.该复合涂层技术已应用于高速公路护栏上. 相似文献
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A novel method for manufacturing powder coating through one step minisuspension polymerization is described. The conventional production of powder coating includes six steps—synthesizing resins, mixing the raw material, extrusion, cooling, pre-crushing and pulverization. Comparatively, the present method can simplify the complicated processes, reduce equipment and save energy. Before polymerization, the TiO2 particles were treated with a reactive silane coupling agent 3-methacryloxypropyltrimethoxysilane (MPTMS) to obtain enough compatibility with the monomers. The powder coating was directly synthesized through employing one step minisuspension polymerization in the presence of titanium dioxide white particles. The powder coating was characterized using Fourier transform infrared spectra (FT-IR) and thermogravimetric analysis (TGA). The results show that TiO2 particles and polymer are successfully linked up via MPTMS in the powder particles. The morphology of powder coatings produced via different methods was observed by scanning electron microscope (SEM). The powder coatings obtained from minisuspension polymerization consist of regular spherical morphology particles with narrow particle size distribution. The powder flowability and surface film smoothness were enhanced compared to the pulverization powder coating. 相似文献
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概述了汽车部件用粉末涂料技术的发展历史及应用现状,根据粉末涂料在汽车部件(包括车身、发动机、轮毂、底盘等)应用的特性要求,指出汽车不同部件应选用相对应的粉末涂料体系,并列出不同粉末涂层的具体检测标准,为汽车粉末涂料的开发提供参考性依据,并展望今后汽车用粉末涂料技术的发展动向和应用前景。 相似文献
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热固性粉末涂料生产中常见质量问题浅析 总被引:1,自引:0,他引:1
阐述了生产配方、原材料、生产工艺、过程控制、机械设备等因素对粉末涂料产品质量的影响,并指出对提高粉末涂料产品质量、合格率和经济效益可能起的作用。 相似文献
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本文提出LCA-咪唑固化体系在环氧粉末涂料中的应用及其所显示的节能特性,对环氧粉末涂料的几种主要固化体系作了比较,分析了LCA-咪唑固化体系显著的节能效果,从而揭示了LCA-咪唑固化体系在这一领域广阔的应用前景。 相似文献
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Xiangbo Meng 《Powder Technology》2009,195(3):264-45
This experimental study investigated particle size evolution in deposited layers during typical electrostatic powder coating processes, using two powder (coarse and ultrafine) systems. Results disclosed that powder coating is a size-selective process in which the motions of in-flight particles are size-dependent. As a result, particles deposited on different regions of the substrate present some size discrepancy which accounts for a size-decreasing tendency along radial direction for both powders. In comparison with coarse powder, however, ultrafine powder can greatly alleviate the size discrepancy. Furthermore, it was also revealed that, due to the size-selective effect, locally deposited particles are with narrower size distributions than the original particles. The study still demonstrated that small particles are more prone to adhere on the substrate in coarse powder coating processes while large particles take the priority to deposit in ultrafine powder coating processes, due to different dominant factors. However, because of the intensifying back corona, the deposited particles show a size-decreasing tendency with extended spraying duration, which is commonly exhibited in both coarse and ultrafine powder coating processes. Nevertheless, in this study it was also found that charging voltage plays a limited influence on the size evolution. 相似文献