首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 494 毫秒
1.
电泳涂料     
《涂料技术与文摘》2007,28(3):31-32
耐腐蚀环氧电沉积涂料组合物、涂装方法及其涂装件;多道阴离子电沉积涂层的制备;电解沉积涂料;电泳涂料;新型阴极电泳漆的合成与影响因素……[编者按]  相似文献   

2.
电泳涂料     
UV固化阴极电泳涂料的制备方法和涂装方法,赋予抗汗性的电涂布组合物及其使用方法,阳离子电沉积涂料组合物及使用该电沉积涂料涂装的物件,一种双组分汽车阴极电泳涂料及其制备方法  相似文献   

3.
岳慧艳  郭睿威 《涂料工业》2006,36(9):40-42,46
将铋离子应用于环氧体系阴极电沉积涂料中,从槽液参数、漆膜性能等方面分析了铋离子代替铅离子作为阴极电沉积涂料催化剂的优势,证明了铋离子应用于阴极电沉积涂料的可行性。  相似文献   

4.
本文对铋离子应用在环氧体系阴极电沉积涂料中的槽液参数、漆膜性能等方面介绍了铋离子代替铅离子作为阴极电沉积涂料催化剂的优势,实践证明了铋离子应用于阴极电沉积涂料中的可行性。  相似文献   

5.
电泳涂料     
《涂料技术与文摘》2007,28(2):28-28
阴极电泳涂料组合物、电泳槽控翻方法和电沉积体系,电沉积涂料组合物及其制备方法。[编者按]  相似文献   

6.
电泳涂料     
《涂料技术与文摘》2006,27(9):34-34
电沉积涂料组合物及其相关方法;丙烯酸系阴极电泳涂料研究进展;具有电沉积潜能的电沉积涂料组合物和电沉积涂覆方法;铝电沉积涂料组合物;阴极电沉积涂料的无铅化研究;[编者按]  相似文献   

7.
电泳涂料     
《涂料技术与文摘》2006,27(6):33-33
200606039 具有良好的柔韧性、耐冲击性和耐腐蚀性。适用于电沉积的贮存稳定性树脂组合物;200606040 含改性环氧树脂的阳离子电沉积涂料组合物;200606041丙烯酸酯改性环氧阴极电泳涂料的研究;200606042 车轮电泳涂装中几个问题的探讨。  相似文献   

8.
电泳涂料     
抑制氢气释放的阳离子电沉积涂料组合物、硼酸基氢气释放抑制剂、由阳离子电沉积涂料组合物抑制氢气释放的方法及涂装工艺;在线调色电泳漆及其制备方法;光固化阴极电泳涂料的制备与应用  相似文献   

9.
电泳涂料     
《涂料技术与文摘》2005,26(3):34-35
带边缘的涂漆电线用含可交联树脂粒子的阳离子电泳涂料组合物:WO2004—100 183,低VOC有机份阴极电泳涂料:JP2004—307 773,阴极电沉积涂料组合物、电泳槽控制法及其涂装系统:JP2004—307 800,高耐候性高硬度无光阳极电泳涂料:JP2004—307 660,低摩擦且耐磨损性好的阴极电沉积涂料组合物,及其电沉积物品:JP2004—277 565  相似文献   

10.
电泳涂料     
《涂料技术与文摘》2009,30(7):36-37
含乙烯基共聚物、氨基树脂和硅氧烷粒子的耐磨和耐划伤阳极电沉积涂料;颜料分散体用阳离子树脂和含该分散体的电沉积涂料组合物;防腐性、耐候性和耐冲击性、涂饰性、操作性和低温固化性好的阳极电沉积涂料组合物;螺栓型电沉积涂料用电沉积涂料溶液组合物;厚膜阳离子电沉积涂料、涂装方法及用其涂覆的物件  相似文献   

11.
Hydrogen coevolution and permeation in nickel electroplating   总被引:1,自引:0,他引:1  
Nickel coatings were electrodeposited onto a steel membrane in a conventional Devanathan cell in order to measure the diffusion rate of hydrogen into the steel substrate during electrodeposition. In most cases a Watts' solution containing various organic additives was used: butyne-2 diol-1, 4; saccharine or thiourea. The structure of the electrodeposits was studied by X-ray and Transmission electron microscopy (TEM). It was shown that the electrodeposition parameters (pH, composition of the bath, additives) have a strong effect on hydrogen permeation. The use of organic additives during Ni plating increased the penetration of hydrogen into the substrate. In particular, sulfur-containing additives cause a fast initial increase of the permeation rate, which is attributable to a high surface concentration of Hads when steel is not totally covered with nickel. By performing permeation experiments with Ni coatings during hydrogen charging from a H2SO4 solution, it was shown that hydrogen permeation through nickel coatings is influenced by their fibre texture and by their grain sizes. A low permeation rate was observed in coatings plated in the presence of butyne-2 diol-1,4, which exhibit a strong 100 texture with large grains and a low density of defects. Conversely, the hydrogen diffusion rate is very high in coatings plated in the presence of thiourea or saccharine. These coatings exhibit a weak texture with very small grains.  相似文献   

12.
In the field of organic coatings, electrodeposition is a technique that holds many advantages over traditional methods of immersion and dispersion, such as low levels of contamination, ease of control and automatization, and high penetration capacity. In this article, the results of the electrodeposition of poly(vinylidene chloride) emulsions on galvanized steel are presented. The operating conditions to form thin, uniform, and adherent films were established. A mathematical model was also developed to predict film growth with time as a function of the process parameters. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 2479–2486, 1998  相似文献   

13.
阴极电泳涂料的研究进展   总被引:3,自引:0,他引:3  
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。  相似文献   

14.
介绍了一种阳离子为锌和锰的磷化液,可以满足阴极电泳配套性要求的无镍磷化工艺。通过对磷化膜膜重,溶出率、结晶形貌、膜成分、电泳后漆膜附着力、抗,中击、耐腐蚀等性能进行比较分析,结果表明在锌离子1.2g/L、锰离子O.8g/L、磷酸根16.0g/L的磷化工艺条件下形成的磷化膜性能指标符合阴极电泳配套要求,与常规锌锰镍系磷化膜基本无差别,性能指标远远高于高锌磷化工艺磷化膜。磷化膜的主要性能指标:P比为85.53%,膜重为3.2g/m2,晶型呈粒状,晶粒大小为3~4μm,磷化膜电泳溶出率为3.7%,附着力和冲击试验均合格,磷化膜与电泳漆复合膜(厚度为20.3μm)盐雾试验500h,单边扩展小于1mm,表面无气泡。  相似文献   

15.
交流阻抗谱研究钙磷陶瓷电沉积层的结构   总被引:2,自引:0,他引:2  
用交流阻抗技术研究了不同电沉积时间的钙磷陶瓷沉积层。结果表明,沉积时间不同的陶瓷沉积层的交流阻抗谱存在显著的差别。采用双层结构物理模型,对不同沉积时间陶瓷沉积层的交流阻抗谱进行计算机拟合,得到的等效电路各元件拟合值显示:电极表面钙磷陶瓷为内密外疏型梯度沉积层。在陶瓷电沉积过程中,钙磷晶粒同时沉积于距电极表面不同距离的部位,沉积层厚度增加的同时内层密度也在逐渐增加,整个 只层的梯度结构处于动态变化之中。  相似文献   

16.
Using cyclic-voltammetric techniques, a pyrophosphate-cyanide electrolyte for the electrodeposition of compact Ag–Sn alloy coatings is investigated. This electrolyte is suited to further investigations on the alloy composition, structure and properties. The electrodeposition of coatings with up to 40 wt% Sn is possible from the investigated complex electrolytes. The alloy surpasses the saturation limit of the silver lattice with Sn and allows the formation of coatings with phase heterogeneity. At high tin content an ordered spatial distribution of different alloy phases on the cathodic surface can be observed. The pattern formation in this system looks very similar to the phenomena and structures observed during electrodeposition of other silver alloys, such as Ag–Sb, Ag–Bi and Ag–In.  相似文献   

17.
Water-soluble Mannich bases were synthesized from cardbisphenol by Mannich reaction and were characterized by 1H-NMR and 13C-NMR spectroscopic methods. The effect of electrodeposition parameters on the film formation from binders and from the pigmented composition were studied. The polymers gave uniform coatings with good mechanical properties and the pigmented systems exhibited high resistance to organic solvents and excellent corrosion resistance properties.  相似文献   

18.
电泳漆边角覆盖缺陷研究   总被引:1,自引:0,他引:1  
介绍了检验电泳漆边角覆盖性的试验方法、电泳及烘干过程中尖端部位涂层的变化,对引起电泳漆边角部腐蚀的原因进行分析,列举了提高电泳漆边角覆盖性的途径。  相似文献   

19.
This study examined the characteristics of calcium phosphate coatings deposited on a NaOH-pretreated titanium substrate by electrodeposition in a modified simulated body fluid (SBF) immediately after electrodeposition as well as after the coatings had been immersed in the SBF for 5 d in order to determine the effects of a NaOH pretreatment on the bioactive coating prior to electrodeposition. The results showed that a dense and uniform coating that consisted of brushite and hydroxyapatite had formed on the NaOH-pretreated titanium substrate by electrodeposition. This coating had transformed to a bonelike apatite during immersion in the SBF. This was attributed to the increased surface area of the modified titanium formed after the NaOH treatment as well as the Na+ ions released from that surface. Therefore, a NaOH pretreatment is recommended as an effective method for preparing a bioactive calcium phosphate coating by electrodeposition.  相似文献   

20.
镍钨合金电沉积伏安特性和初期行为的研究   总被引:8,自引:0,他引:8  
镍钨合金镀层由于其高的硬度、耐磨及耐蚀性而被作为代铬镀层用于金属表面处理。为进一步探讨镍钨合金的电沉积机理,采用循环环伏安法和电位阶跃法研究了玻碳电极上镍钨电沉积的循环伏安特性和初期行为。电沉积过程中,钨酸根被还原成中间价态的氧化物。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号