改善聚氨酯亮光色漆边角覆盖性的研究

根据现代家具工件多边角的特点,选择合适的原材料,制备具有优异施工性能的新型聚氨酯亮光色漆,讨论了主要组分对聚氨酯亮光色漆边角覆盖性的影响,结合家具涂装的实际情况,提出了改善涂料边角覆盖性的方法。     

厚膜阴极电泳漆的特点及其发展趋势

厚膜型阴极电泳漆是阴极电泳漆的新一代产品，其膜厚明显高于一般电泳漆，介绍了厚膜电泳漆的特点及其发展方向。     

厚膜阴极电泳漆的特点及其发展趋势

厚膜型阴极电泳漆是阴极电泳漆的新一代产品，其膜厚明显高于一般电泳漆。介绍了厚膜电泳漆的特点及其发展方向。     

应用超滤技术实现电泳生产废水零排放

阴极电泳涂层具有优异的防腐性能,在稀土永磁材料表面防腐上有广泛的应用,电泳生产线不论大小均存在着电泳漆和清洗水的回收和排放问题,为了实现电泳漆和电泳漆清洗水的在线回收利用,采用电泳漆超滤清洗、回收以及电泳后喷淋水超滤循环利用,达到电泳漆的100%回收,实现了电泳生产废水零排放。     

一种提高电泳漆质量增加效益的途径

介绍了一种国产阴极电泳漆性能试验及现场应用情况 ,并对照进口产品对国产阴极电泳漆的经济性、市场现状和前景进行了对比分析。提出推广和使用国产阴极电泳漆的意见     

丙烯酸阴极电泳漆的研制

介绍了采用甲基丙烯酸缩水甘油酯与常用的丙烯酸单体通过溶液聚合,制备丙烯酸阴极电泳漆的简单可行方法。研制的电泳漆克服了环氧-聚氨酯阴极电泳漆的缺点,具有可着色性、高装饰性、高耐候性等特点。讨论了影响电泳漆性能的诸种因素。列举了电泳原漆的技术指标、施工参数和漆膜性能指标。     

D2035新型阳极电泳漆

Ｄ２０３５新型阳极电泳漆既可作底漆，也可作一道电泳漆，其耐盐雾性优于一般阳极电泳漆。介绍了该电泳漆用基料的合成及技术指标，配方计算和生产工艺。列举了各项电泳涂装条件。讨论了影响Ｄ２０３５性能的诸因素。     

阴极电泳漆槽液熟化周期研究

针对槽液熟化周期长的电泳漆品种,在进行电泳漆材料性能试验时提前将电泳漆中的乳液进行深度脱溶剂处理,除掉其中大部分的低沸点溶剂,可以有效缩短电泳漆槽液的熟化周期,在短时间内满足电泳漆的相关试验需求。     

磷化膜在电泳过程中的状况及影响

通过两种实验方案（仿电泳漆的导电液,真实电泳漆液）实测了磷化膜在电泳过程中的溶解量,以及使电泳漆电导升高的具体数据,为施工单位选择工艺和材料提供了量的借鉴。同时,从理论上分析了低锌磷化膜耐腐蚀性好的原因,强调了低锌磷化膜是所有电泳漆的最佳匹配选择。     

MT型阴极电漆专用中空纤维超滤器及装置

阴极电泳漆是近年来发展起来的一种新型防腐涂料,目前已在汽车、家用电器、自行车、仪表、工艺品等行业采用了阴极电泳漆涂装技术,而超滤装置是阴极电泳漆涂装     

Electrochemical study of the corrosion behaviour at the edges of electrocoated steel

Cathodic electrodeposition is currently used to protect the totality of the world automotive production against corrosion. Although this technology is highly competitive, some aspects, as the coverage of salient edges, could still be improved. Special paints containing flow modifiers have consequently been developed. Salt fog exposure on steel knife blades is the most frequently performed test to characterize the protection afforded by cataphoretic coatings against edge corrosion. In this study, a method based on electrochemical techniques, among which cathodic polarization and electrochemical impedance spectroscopy (EIS), is proposed for the special characterization of edge coverage in a faster and less restrictive way in comparison with salt fog spray. The combination of dc and ac measurements is also employed to accelerate the degradation process and to improve the fitting of EIS spectra. In order to validate these testing methods, different kinds of pretreatments and coatings were selected. The influence on edge corrosion of different parameters as the coating thickness and the amount of flow modifier were determined.     

新型阴极电泳涂料的研究进展

概述了无铅型、低VOC型、UV固化型、薄层型、自分层型及边角耐蚀型等新型阴极电泳涂料的最新研究进展,指出新一代的阴极电泳涂料正向着环保、节能、低成本、高性能化方向发展.     

丙烯酸微凝胶的合成及其在阴极电泳涂料中的应用

采用环氧-季铵盐型分散树脂和水溶性阳离子引发剂合成了丙烯酸微凝胶,其稳定性优良,添加到阴极电泳涂料中可显著提高涂膜的边角保护性。     

阴极电泳涂料的新进展

本从提高边缘覆盖性、降低泛黄性、降低固化温度等方面综合了阴极电泳涂料的研究新进展。     

Controlled nucleation and growth in chromium electroplating from molten LiCl-KCl

The relationships between the electrochemical parameters (which can be controlled) and the resulting structures of chromium electrodeposits obtained by electrolysing chromous chloride (CrCl₂) dissolved in the LiCl-KCl eutectic have been established. The electrodeposition of chromium under ordinary potentiostatic conditions leads to pure chromium but this is not in a form to provide an adequate protective coating as it is difficult to avoid dendrite formation and low initial coverage together. These limitations can be overcome by the sequential use of a high overpotential pulse to initiate good coverage and continuing electrodeposition at low overpotential to minimize dendrite formation.The structures and morphologies of chromium electroplates were optimized. The good protective coatings that resulted were adherent, coherent and reasonably free of cracks and pores. The macro-and microthrowing powers of the bath were excellent and the high purity of the chromium electroplates led to low (130–280 HV) measured microhardness.This paper was presented at a workshop on the electrodeposition of refractory metals, held at Imperial College, London, in July 1985.     

Electrodeposition of iridium onto glassy carbon and platinum electrodes

The mechanism for the electrodeposition of iridium onto glassy carbon and platinum substrates has been investigated. Iridium coatings were characterized by X-ray photoelectron microscopy to determine their chemical compositions and the morphologies of deposits were observed by scanning electron microscopy. The deposition of iridium on glassy carbon electrodes requires, in a first stage, the formation of Ir surface sites. These sites, generated by reduction of Ir³⁺ ions for large overpotential, allow the adsorption of H atoms which act as the reducing agent for Ir³⁺ ions. In contrast, on platinum, Ir electrodeposition occurs readily due to a high H_ads surface coverage. The optimal H_ads surface coverage for the electrodeposition of Ir on Pt is close to 0.5. Electrochemical quartz crystal microbalance measurements demonstrated that the Faradaic efficiency of Ir deposition on Pt is very low (0.2–1.7%).     

阴极电泳涂料的研究进展

介绍了电沉积的原理,阴极电泳涂料和树脂的特点以及阴极电泳涂料的优越性。概述了国内外阴极电泳涂料的现状,重点介绍了几类目前发展较快的阴极电泳涂料,同时指出了阴极电泳涂料今后的发展趋势。     

浅析粉末涂膜的边缘覆盖问题

从改变被涂物外观设计、改进喷涂工艺和调整粉末涂料配方设计三方面着手阐述了粉末涂膜边角覆盖问题的解决方法。     

阴极电泳涂料与涂装的发展历程及趋势

介绍了国内外电泳涂装应用发展情况,并按泳透力、电泳工艺参数、环保性、涂膜的平滑性、耐腐蚀性等5方面的技术进步状况,推荐将阴极电泳涂料的发展历程暂划分三代。并预测了阴极电泳涂料与涂装的发展趋势。