铝型材专用砂纹粉末涂料光泽稳定性探讨

介绍了铝型材专用聚酯/TGIC型砂纹粉末涂料,针对砂纹粉末涂料生产使用过程中经常出现的光泽异常问题进行了分析。砂纹粉末涂料光泽异常往往会导致涂膜的颜色差异影响装饰性、更甚者影响到涂膜的性能。通过分析探讨影响铝型材专用砂纹粉末涂料光泽稳定性的影响因素,并对各个影响因素进行了条件对比实验。实验的最终结论是:砂纹剂、固化剂的添加量对砂纹粉末光泽稳定性有着至关重要的影响。     

建筑铝型材用氟碳粉末涂料的制备与性能研究

为了开发出适用性好、性价比高的建筑铝型材用FEVE(氟烯烃-乙烯基醚共聚物)型氟碳粉末涂料,重点分析了不同厂家的氟树脂、不同种类异氰酸酯及颜填料的含量对FEVE型氟碳涂层性能的影响。对比了不同类型耐候性粉末涂料的耐老化性,认为丙烯酸树脂和超耐候羟基树脂比较适合改性氟树脂;进一步对比了这2类树脂改性氟树脂后涂层的性能。结果表明:选用丙烯酸树脂改性氟树脂与自封闭异氰酸酯BF-1540制备FEVE氟碳粉末涂料,颜填料用量为22.5%时所得涂层性能优异,性价比高。     

钛白粉对户外用粉末涂料耐候性能的影响研究

当前以防护和装饰为主要功能的户外粉末涂料涂层的应用面越来越广泛,对户外粉末涂料的耐候性的要求也越来越高,在户外粉末涂料涂层中加入的钛白粉颜料决定了涂层的耐候性。基于此,从钛白粉品质性能着手,对钛白粉种类、表面处理及特性对户外粉末涂料涂层的耐候性能的影响进行分析研究。     

β-烷基酰胺低温固化粉末涂料用聚酯树脂的合成研究

研究了合成β-羟烷基酰胺低温固化耐候粉末涂料用聚酯树脂的配方,讨论了不同单体对树脂Tg、反应性及粉末涂料涂层的机械性能和涂层其他性能的影响。     

工程机械用粉末涂料的研究

针对工程机械作业环境和使用要求,从粉末涂料的耐候、耐盐雾原理出发,选择了合适的树脂、固化剂与助剂;探讨了不同底粉与面粉复配对工程机械用粉末涂层的耐盐雾、光老化、冲击效果的影响;最终研制出具备优良耐候性能、耐盐雾优异、冲击性能良好的工程机械用粉末涂料。     

固化促进剂在耐候粉末涂料用聚酯树脂中的应用研究

研究了耐候粉末涂料用聚酯树脂合成中固化促进剂的作用;讨论了固化促进剂的选择、加入量、加入时机对树脂性能及涂层固化性能的影响;分析了固化促进剂对不同配方聚酯合成的影响。     

汽车铝轮毂用超耐候纯聚酯透明粉末涂料的研制

研究了端羧基聚酯树脂、固化剂、助剂的种类及用量对透明粉末涂料的外观(流平性、透明度)和性能(抗冲击性能、硬度、附着力、耐腐蚀性能、耐候性能)的影响,最终制备出了一种铝轮毂用超耐候纯聚酯透明粉末涂料。其具有罩光涂层的高流平性、高透明度、高耐候性能以及优良的耐腐蚀性能,满足铝轮毂涂层对美观度与耐久性的涂覆要求。     

β-羟烷基酰胺固化型耐候粉末涂料用聚酯树脂的合成研究

研究了在合成β-羟烷基酰胺固化型耐候粉末涂料用聚酯树脂中树脂黏度和反应活性的控制,讨论了不同单体对聚酯树脂的Tg、黏度、反应性的影响,以及对涂层的机械性能和耐候性能的影响。     

建筑铝型材涂装分析及粉末涂料研究进展

比较了建筑铝型材3种表面处理的特点,分析了粉末涂装的相对优势。介绍了户外粉末涂料在耐候改进和低温固化2个方面的研究进展。     

快速固化卷材粉末涂料用纯聚酯树脂的合成研究

设计并合成了一种快速固化卷材粉末涂料用聚酯树脂,并以其制备了TGIC固化型粉末涂料。讨论了不同单体和固化剂促进剂用量对聚酯树脂的Tg、粘度和反应性的影响,以及对涂层的机械性能、耐候性能和耐盐雾性能的影响。     

丙烯酸立体锤纹涂料的研制

研制了一种丙烯酸立体锤纹涂料。介绍了其配方及配制过程,测量了其各项性能,并探讨了丙烯酸树脂,锤纹助剂,铝粉,施工粘度和溶剂对漆膜性能及锤纹效果的影响。结果表明：丙烯酸立体锤纹涂料的各项性能优良,施工简单,成本低,所得锤纹均匀美观。     

Powder coatings technology: new developments at the turn of the century

The growth of the powder coating business is affected by the toxicological effects of the raw materials used in the coating formulation and the saturation of the present market for powder coatings, being limited to general metal applications only. This has a strong influence on the long-term research programmes at both raw materials suppliers and powder paint producers. In the last decade of the 20th century, we witness appearance of several new types of toxicologically-safe powder coating systems on the commercial scale. At the same time, there is strong evidence of efforts to penetrate new market fields where powder coatings are not typically used. This includes the markets for automotive clear top coatings, can and coil coatings, coatings for industrial wood, plastics and paper. The new developments in the chemistry of powder coatings are followed by changes and improvements in the production technology for powder coatings as well as developments of new application techniques. This paper summarises the research work on chemistry, production and application technology of powder coatings and tries to extrapolate the tendencies in the years to come in order to predict the achievements and the impacts on the paint industry.     

汽车铝轮毂用电镀效果粉末涂料的应用研究

介绍了电镀银特效粉末涂料在铝轮毂上的应用,分析了配方中羧基聚酯树脂、环氧树脂、流平剂、银粉特效排列助剂等对涂层性能的影响,通过表面罩丙烯酸透明粉对轮毂进行力学性能检测和涂膜性能测试,并解决相应的问题,进一步探讨底面合一电镀效果粉末涂料代替汽车银漆在施工上的可能性。     

Characterization and corrosion protection properties of epoxy powder coatings containing nanoclays

Two types of nanoclays, montmorillonite nanoflakes and halloysite nanotubes, at various concentrations were tested as nanofillers in epoxy powder coatings applied on an aluminum foil and a steel panel. The produced coatings were separated from the aluminum foil, enabling determination of peel strength, and mechanical properties and water permeability were determined for the obtained free films. Coated steel panels were characterized in terms of microstructure and corrosion protection properties in 0.5 M NaCl solution.     

浅析汽车用塑胶漆喷涂参数对铝粉定向排列的影响

简要介绍了汽车用塑胶漆涂装工艺及铝粉漆在其中的应用。以双组分汽车内饰铝粉漆为基础配方,通过改变喷涂条件,喷涂铝粉漆样板,以目视及测色仪测定等方法,讨论铝粉漆中影响铝粉定向排列的因素。     

涂料助剂对巴士客车用金属闪光漆性能的影响

研究了湿润分散剂、CAB树脂、蜡浆对巴士客车用丙烯酸聚氨酯金属闪光漆性能的影响。采用高倍显微镜和分光光度计对铝粉的分散和定向排列效果进行了表征。结果表明:当湿润分散剂选用BYK-110,金属铝粉有较好的分散效果;醋丁纤维素树脂CAB381和CAB551按8∶1搭配使用时,金属闪光漆有最佳的综合性能;选用某EVA蜡浆作为铝粉定向剂,金属铝粉有较好的定向排列效果,此时漆膜的可见光反射率可达65%。     

Effect of sol–gel layers obtained from GLYMO/MTES mixtures on the delamination of a cataphoretic paint on AA1050

In this study, the performance of different sol–gel layers produced from different mixtures of silicon alkoxides precursors (γ-glycidoxypropyltrimethoxysilane, GLYMO, and methyltriethoxysilane, MTES) applied on AA1050 aluminum alloy as a pretreatment prior to depositing an electrophoretic paint (polyether–polyamine polymeric blend) is investigated. The structure of the sol–gel coatings was characterized by means of ATR FTIR, while the corrosion protection properties were assessed by polarization curves. Accelerated laboratory tests, such as exposure in both neutral and acetic salt spray chambers and filiform corrosion tests, were employed to investigate the corrosion protection properties of the cataphoretic paint-coated samples. The failure mechanisms of the different coatings were investigated. The experiments revealed that the presence of GLYMO in the sol–gel coating seems not to be suitable for acting as a coupling agent between the paint and the aluminum substrate. On a positive note, this work shows that the filiform corrosion test seems to be the most appropriate test to evaluate the efficiency of sol–gel layers employed as pretreatment to enhance the corrosion protection provided by a paint on an aluminum substrate.     

高金属质感的水性铝粉烤漆配方研究

为了解决水性铝粉烤漆喷涂后漆膜中铝片的二次运动紊乱,造成漆膜铝粉排列效果变差,金属质感无法体现的问题。本文通过选取特殊改性水性树脂,加入胺中和剂之后获得比较高的触变值（ TI值）,搭配银排助剂,进一步提高了水性体系 TI值,同时也提高了漆膜的抗流挂性能,很好地控制了湿膜中铝粉的二次有序运动,使铝粉获得理想的平铺效果,最终得到高金属质感漆膜;通过调整 TI值范围,可以分别满足空气喷涂以及静电喷涂 2种喷涂工艺。     

外墙用水性金属闪光漆中铝粉的选择和定向分析

对水性外墙金属闪光漆中铝粉的选择和定向进行分析。讨论不同情况下铝粉对水性金属闪光漆的影响。