浅色水性环氧导静电防腐涂料的研制

研制的水性环氧导静电防腐涂料为双组分涂料,甲组分由水性胺加成物固化剂、导电填料、防锈颜填料及助剂组成;乙组分由环氧树脂E51或OER-95、活性稀释剂、掺杂聚苯胺及偶联剂组成,按环氧/胺当量比为1.1∶1配漆,涂层具有优异的导静电性和防腐蚀性能。     

聚苯胺材料导静电性能及其配方研究

主要研究采用聚苯胺材料代替石墨配制混合型导静电涂料的方法,可提高传统的石墨添加型导静电涂料的性能,并克服石墨迁移现象。     

H94阻燃导静电耐温防腐蚀涂料的研究

介绍了Ｈ９４阻燃导静电耐温防腐蚀涂料所用原料、制备方法和性能测试,着重讨论了成膜物质种类、固化剂类型、隔热微珠、导静电材料以及防锈颜料对涂料性能的影响。     

新型防锈颜料

以前的防锈颜料主要使用铬酸锌、铬酸锶等铬酸系颜料,铅丹、铬酸铅等铅系颜料。这些防锈颜料虽然具有良好的防锈性能和成膜性能,但自身都带有颜色。而用三聚磷酸二氢铝和铅化物反应,可制得具有优良防锈性能的白色或淡色的新型防锈颜料。这种防锈颜料不仅可使防锈涂料能任意着色,而且对涂膜的     

复合铁钛粉改性环氧富锌重防腐涂料的研究

通过选用纳米改性复合铁钛防锈颜料对环氧富锌重防腐涂料进行改性,制得了具有优异防腐功能的新型环氧富锌涂料;研究了复合铁钛粉的种类及用量对环氧富锌防腐涂料性能的影响;确定了环氧富锌涂料的最佳PV C值。结果表明,当选用纳米改性复合铁钛防锈颜料,用量为8%,涂料的PV C值为42%时,可较大幅度地改善环氧富锌涂料的密封性、附着力、厚涂性,耐盐雾腐蚀可达1542h。     

Ferrinov铁素体颜料防锈性能验证试验与分析

通过用Ferrinov新型铁素体活性防锈颜料局部替换成熟配方中锌盐组分、铬酸盐防锈组分的试验验证方法,证明了铁素体活性防锈颜料具有优异的缓蚀和防锈性能,性能优于锌盐和铬酸盐组合,在溶剂型涂料中效果突出。     

聚苯胺涂料生产方式和防锈性能研究

对聚苯胺材料在船舶涂料中的分散方式和生产工艺及防锈性能进行了研究,它可以采用传统的设备和工艺生产各种类型的含聚苯胺高性能防锈涂料,并为聚苯胺在涂料中的应用提供了有益的参考。     

缓蚀颜料复合型水性环氧富锌涂料的制备与应用

利用缓蚀型磷酸盐类颜料复配锌粉,制备了一种新型水性环氧富锌涂料.通过研究缓蚀型颜料的种类及用量,分散剂、流变助剂和附着力促进剂等助剂对富锌涂料相关性能的影响,对涂料配方进行优化.结果表明:选用BYK-2055作为分散剂,1.25％的气相二氧化硅A200和1％的膨润土828作为流变助剂,用9％防锈颜料三聚磷酸铝复配65％...     

轻质石油罐导静电涂料的应用

分析了石油产品贮罐导静电涂料防腐性能失效的原因,讨论了导电填料的电极电位、涂层抗渗透性及干膜厚度对罐壁防锈寿命的影响.根据不同油品的使用要求和贮罐的结构类型,设计了油罐内壁导静电防腐涂层配套方案:无机富锌底漆,以炭黑、石墨为导电填料的防静电中间漆,以金属氧化物为导电填料的聚氨酯或环氧防静电面漆.     

环境友好防锈涂料的研究进展

综述了国内外环境友好防锈涂料的最新研究进展.详述了水性环氧树脂、水性丙烯酸树脂,水性聚苯胺树脂、水性无机富锌树脂等基料及其改性,并介绍了纳米复合铁钛粉、光催化型、磷酸盐、三聚磷酸铝等无毒防锈颜料及其防锈机理,指出了现今防锈涂料的应用现状、存在的问题和发展趋势.     

不同溶剂对锌基涂层耐蚀性的影响

利用片状锌粉、铝粉、铬酐及其它有机物配制的锌基涂料具有良好的结合力和耐蚀性。探讨了不同溶剂对涂层的影响，涂层的耐蚀性以及其形貌结构。结果表明，所得涂层致密，耐蚀性比同厚度的锌镀层及镀锌钝化层要高得多。     

高溶解性导电聚苯胺的合成及防腐性能研究

在碱性条件下合成出高溶解性和分散性的聚苯胺,探讨了不同反应条件下聚苯胺的电导率,并通过极化曲线研究了聚苯胺对A3钢防腐蚀性能的影响。结果表明,当pH为12.18时,电导率可达到8.35×10^-2S/cm;聚苯胺涂层能使钢铁自然腐蚀向正方向分别移动了58mV,而腐蚀电流密度则由10^-6.5A/cm^2降低到10^-8.2A/cm^2,提高了钢铁的防腐蚀性能。     

Preparation,Characterization, and Anticorrosive Properties of Polyaniline Nanotubes

Self-assembled polyaniline nanotubes were synthesized using sodium dodecylbenzene sulfonate both as dopant and soft template by the oxidative polymerization of aniline. Electrical conductivity, electrochemical behavior, and solubility of polyaniline nanotubes were investigated and compared with that of conventional polyaniline synthesized similarly. Polyaniline nanotubes showed enhanced electrical, electrochemical, and solubility properties. Emeraldine base nanotube coating exhibited superior anticorrosion effect, especially in NaCl (3.5%w/w) solution. According to the results of Tafel slope analysis, the corrosion current of iron coupons coated with polyaniline nanotubes was much lower than that of coupons coated with conventional polyaniline in all studied corrosive environments.     

聚苯胺防腐涂料的研究现状

聚苯胺(PANI)是一种新型的金属防腐保护材料,与常规缓蚀剂相比没有任何的环境副作用,是一种符合时代和科技发展的绿色缓蚀剂,成为当前研究最多的导电高分子材料。本文概述了国内外聚苯胺防腐蚀涂料的研究情况,具体涉及聚苯胺的结构、性能和聚苯胺防腐蚀涂层的制备方法。指出了聚苯胺研究中存在的问题,应用现状和对其发展前景的展望。     

Corrosion protection of iron by benzoate doped polyaniline containing coatings

Polyaniline containing organic coatings based on vinyl and acrylic resins are found to protect iron in acid and neutral media. Since dopants play an important role in forming salts with iron, a study has been made on the effect of benzoate doped polyaniline on the corrosion protection of iron by polyaniline–vinyl coatings in acid and neutral media. EIS studies have been made on the corrosion protection performance of vinyl coating on steel with 1% polyaniline in 0.1N HCl and 3% NaCl up to 100 days of exposure. It has been found that benzoate doped polyaniline containing coating has found to offer more protection in neutral media than that in acidic media due to passivating ability of benzoate ions in neutral solution, along with iron–polyaniline complex.     

聚苯胺颗粒对水性环氧树脂涂层防腐性能的影响

以盐酸为掺杂剂、过硫酸铵为氧化剂、咪唑类离子液体为稳定剂,采用化学氧化聚合法合成了导电聚苯胺(PANI)颗粒,将其分散到水性环氧树脂(ER)中制成聚苯胺水性环氧防腐涂层,研究了聚苯胺颗粒对涂层防腐性能和机械性能的影响。结果表明,添加聚苯胺显著提高了水性环氧涂层的阻隔性能,信号频率f=0.01 Hz时,PANI/ER涂层的阻抗(|Z|f=0.01Hz)均高于纯ER涂层。添加5.0wt% PANI时ER涂层阻隔性能最好,浸泡0~168 h时|Z|f=0.01Hz稳定在约8.0×108 Ω?cm2,浸泡168 h后|Z|f=0.01Hz=7.5×108 Ω?cm2,远高于ER和其它PANI/ER体系。中性盐雾实验结果表明,聚苯胺赋予了涂层钝化腐蚀的能力,显著提高了涂层的防腐性能,且其添加量越高,防腐性能越好。弯曲和冲击实验结果表明,涂层的机械性能随聚苯胺含量增加先上升后降低,当聚苯胺添加量不超过5.0wt%时,涂层的机械性能优异,附着力和韧性均较好;PANI添加量增至7.0wt%时,ER涂层的脆性明显变大,机械性能下降。聚苯胺在水性环氧体系中的最宜添加量为5.0wt%,此时涂层的机械性能良好,综合防腐性能最优。     

Enhanced corrosion protective coating based on conducting polyaniline/zinc nanocomposite

Conducting polyaniline (PANI) is being explored as promising material for protection of metals against corrosion. It has the possibility of making smart coatings on metals, which can prevent corrosion even in scratched areas where bare metal surface is exposed to the aggressive environment. However, PANI coatings have poor barrier and mechanical properties. The barrier property of coatings can be enhanced by the addition of appropriate filler particles. Also it has been demonstrated that nanoparticulate fillers give much better barrier properties even at lower concentrations. In this study, the effect of zinc nanoparticles on the anticorrosive property of PANI coating on iron samples has been investigated. The PANI/Zn nanocomposite was synthesized by in situ polymerization of aniline in the presence of Zn nanoparticles. The nanocomposite was characterized by using FTIR, conductivity measurement, cyclic voltammetry, and AFM techniques. Results showed that PANI/Zn nanocomposite coating has improved corrosion protection effect when compared with pure PANI coating. The corrosion current of PANI/Zn coated samples were found to be much lower than that of pure PANI coated samples. The results were referred to the good barrier properties of Zn nanoparticles and improvement in electrochemical corrosion protection of PANI coating in the presence of Zn nanoparticles. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010     

Conductivity and anticorrosion performance of polyaniline/zinc composites: Investigation of zinc particle size and distribution effect

Polyaniline/zinc composites and nanocomposites were prepared using solution mixing method. Zinc (Zn) particles with an average particle size of 60 μm and zinc nanoparticles with an average particle size of 35 nm were used as fillers in polyaniline (PANI) matrix. Films and coatings of PANI/Zn composites and nanocomposites were prepared by the solution casting method. Electrical conductivity and anticorrosion properties of PANI/Zn composite and nanocomposite films and coatings with different zinc loadings were evaluated. According to the results, electrical conductivity and anticorrosion performances of both PANI/Zn composites and nanocomposites were increased by increasing the zinc loading. Also results showed that the PANI/Zn nanocomposite films and coatings have better electrical conductivity and corrosion protection effect on iron coupons compared to that of PANI/Zn composite.     

自生膜型镀锌设备盐酸清洗缓蚀剂JSS的研制与评价

利用失重法研究了盐酸溶液中各类单组分缓蚀剂对锌的缓蚀作用和多组分缓蚀剂的协同效应,研制出一种自生膜型镀锌设备盐酸清洗缓蚀剂JSS,并对其缓蚀性能进行了评价。腐蚀速率-缓蚀剂浓度曲线、腐蚀速率-盐酸浓度曲线、腐蚀速率-时间曲线和腐蚀速率-温度曲线等研究结果表明,JSS缓蚀剂缓蚀性能优良,抗干扰性好。电化学研究结果表明,JSS缓蚀剂是一种阴极型缓蚀剂。JSS缓蚀剂在锌表面可自动产生完整的金黄色吸附膜,不仅保证镀锌设备盐酸清洗过程中镀锌层的完整性,而且清洗后能防止镀锌层的大气腐蚀和循环水中的电偶腐蚀。     

AZ91D镁合金电镀Al-Zn复合镀层及耐蚀性研究

为了提高AZ91D镁合金的抗腐蚀性能,在其表面电镀Al-Zn复合镀层.研究了镀层的物相组成、微观形貌、结合力及抗腐蚀性能.结果表明,镀铝为中间层能得到较好的组织和性能,镀层表面为纯锌,镀Zn层分布致密均匀,镀锌层约6μm,中间铝层约4μm且组织疏松;电流密度3.5 A/dm2、电镀时间1 min时镀层具有较好的结合力与...