水性环氧涂料及在防腐蚀领域的应用

简要介绍了水性环氧涂料的树脂分类、各自特点及在防腐蚀领域的应用。水性涂料具有环保安全的特点,水性环氧涂料是其重要组成部分,根据物理形态可分为多种类型,有着不同的成膜机理。水性环氧防腐涂料主要包括水性环氧铁红防锈漆、水性环氧磷酸锌防锈漆、水性环氧富锌底漆等,在国内外已得到成功应用。     

水性无机富锌涂料的研制

探讨了水性主剂的模数(即摩尔比率)、填料等对水性无机富锌涂料性能的影响,同时分析了水性无机富锌涂料替代溶剂型无机富锌涂料和溶剂型环氧富锌涂料作为防腐蚀底漆的可行性。     

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.     

环氧富锌底漆涂料

<正>朝晖化工厂生产的环氧富锌底漆全部通过质量信誉监督管理协会认证,质量全面达标,主要产品有:环氧富锌底漆建筑涂料,防腐涂料,重防腐涂料,地坪涂料,工业涂料,民用涂料,环氧富锌底漆合成树脂等。其环氧富锌底漆为耐高温漆,由有机硅树脂溶于溶剂中并加入耐高温助剂配制而成,该漆可室温干燥,具有良     

矿用环氧涂料

江苏省煤矿研究所、华东化工学院和张家港市锦丰化工厂共同研制出三种矿用环氧涂料——H802环氧富锌底漆、H861-1环氧沥青厚浆型防锈底漆和H861-2环氧沥青厚浆型防护面漆。这三种涂料除用于     

快干型水性环氧富锌底漆的研制

富锌底漆作为长效型钢结构重防腐涂料涂装配套体系的底漆与其他品种底漆相比,具有防腐性能强、耐热性优良、附着力好等优点。其按成膜物质不同可分为无机、有机、有机／无机掺合3类。有机富锌涂料常用环氧、氯化橡胶、乙烯基树脂和聚氨酯树脂为成膜基料,最为常用的是环氧富锌涂料。其中,聚酰胺固化环氧富锌底漆最常用。该类涂料的特点是长效防腐、表干时间快,     

聚苯胺在富锌底漆中的应用及对钢的保护性能研究

聚苯胺添加到环氧-富锌底漆中,其独特的导电性能被认为可以大大降低富锌底漆中锌粉的用量并提供有效的电化学保护,从而改善富锌底漆的施工性能和附着力,提高涂层性能。把纤维状的导电聚苯胺添加到环氧-富锌底漆中配制成复合涂层,通过测试不同涂层对Q235钢的保护效果,研究导电聚苯胺与锌粉的配合及其对锌粉的替代作用。     

石墨烯在环氧富锌底漆中的应用

用石墨烯替代环氧富锌底漆中的部分锌粉,制备了一种锌烯复合涂料。采用盐雾、耐冲击、附着力以及电化学等测试方法对不同石墨烯含量的锌烯复合涂料和环氧富锌底漆的性能进行了评价,并对锌烯复合涂料的防腐机理进行了分析。结果表明:石墨烯添加量为1%时,锌烯复合涂层具有最佳的防腐性能。     

几种新型富锌涂料的研究进展

介绍了氧化石墨烯改性水性环氧富锌涂料、石墨烯纳米片/环氧富锌(Gnps/ZRE)复合涂料、高柔韧性、高附着力水性无机富锌涂料、石墨烯硅酸盐富锌防腐蚀涂料、水性聚苯胺/氧化石墨烯改性低锌粉含量防腐涂料、还原-氧化石墨烯(r-GO)改性环氧富锌涂料、耐盐雾双组分水性环氧富锌涂料、石墨烯浆料改性水性环氧富锌涂料、双电层水性无机富锌涂料、SnCl2/EtOH溶液法还原氧化石墨烯环氧富锌涂料、有机-无机杂化水性富锌涂料、水性富锌铝涂料、低锌含量石墨烯长效防腐涂料、自固化醇溶性无机富锌底漆和冷镀锌喷漆等几种新型富锌涂料的研究进展。     

石墨烯/环氧复合导电涂层的防腐性能研究

以石墨烯粉体为填料,环氧E-44为基料研制了一种环氧复合防腐导电涂料,对比了不同石墨烯含量的复合涂料与纯环氧涂料、炭黑环氧涂料、环氧富锌涂料、玻璃鳞片涂料的导电和防腐等方面的性能。结果表明:石墨烯用量为0.5%时,涂层防腐性能优良,用量为1%时,涂层表面电阻率为106Ω,符合导静电要求。     

关于食品级白油储罐内壁处理方法的探讨

为保证罐内储存的食品级白油不发生变质或与杂质发生反应，确保食品级白油的质量，储罐内壁的处理是关键。通过对比罐内壁喷铝、喷不锈钢、罐壁采用不锈钢和罐内壁涂刷防腐涂料工艺，表明采用罐内壁涂刷防腐涂料工艺施工简单易行，工程投资少，并可满足国家质量技术要求。     

Solventborne paint systems on carbon steel and hot-dip galvanized steel for a wide range of atmospheric exposures

The paper analyzes the performance of solventborne paint systems applied on carbon steel and hot-dip galvanized steel in a wide range of atmospheric exposures. The study has involved paint systems exposure for 3.5 years in eight natural atmospheres. The atmospheric conditions cover from temperate rural climates to tropical severe marine and Antarctic coastal regions. The paint systems included several alkyds formulated with a variety of pigments (anticorrosive and barrier), epoxies, chlorinated rubber, and zinc-rich (ethyl silicate and epoxy). It has been concluded that in rural and urban atmospheres alkyd systems afford equivalent anticorrosive protection of steel to the epoxy/polyurethane system. The toxic red lead pigment may be replaced in long linseed-oil alkyd primer paints by non-toxic pigments, such as a mixture of micaceous iron oxides (MIO) and black iron oxides or zinc phosphate, without affecting the anticorrosive properties of the paint system. In aggressive atmospheres (industrial, marine), paint systems including zinc-rich primers or applied on galvanized steel must be used, especially in surface regions with coating faults (scribes).     

新一代水性无机富锌底漆的生产与施工应用

通过对高模数无机硅酸盐进行改性,使无机富锌底漆的质量与施工使用得到改善与提高,实现了水性富锌底漆与溶剂型富锌环氧底漆施工使用同样方便,性能更好,尤其是产品的环保性能和良好的防腐性能。     

Performance of paint systems with polyurethane topcoats, proposed for atmospheres with very high corrosivity category

The EN ISO Standard 12944-5 describes the types of paint and paint systems commonly used for corrosion protection of steel structures. In this work four paint systems, applied on steel, including polyurethane topcoats, recommended for atmospheres with high corrosivity (C5 category), codified by 1–4, were studied. Systems 1 and 4 include zinc rich primers and epoxy/polyamide intermediates, system 2 has solvent free epoxy/polyamide primer and intermediate and, system 3 is a hybrid system with vinyl–acrylic water based primer and a high solids epoxy/polyamide intermediate. Systems 2–4 have acrylic–polyurethane topcoats and, the topcoat of the system 1 was identified as an aliphatic polyurethane.

According to EN ISO 12944-6, water condensation and neutral salt spray tests were performed. Three exposure times were considered taking into account the durability ranges of paint systems: low, medium and high, respectively. The paint systems were complementary submitted, during 30 days, to ultraviolet radiation with water condensation test according to ASTM G 154. At the same time, natural exposure was conducted in the marine atmosphere of Sines, with very high corrosivity (>C5).

The paint adhesion, before and after artificial ageing, was evaluated by cross-cut test and, for the systems with dry thickness greater than 250 μm, by pull-off test. Visual inspections were carried out.

For the exposure in UV radiation test chamber and at test site, gloss reduction, colour change and chalking were measured. Chemical changes on polyurethane topcoats exposed in the UV radiation test chamber were studied by Fourier transform infrared spectroscopy (FTIR).

In spite of the higher aesthetic degradation by UV radiation, of the aliphatic polyurethane topcoat of the system 1 relatively to the acrylic–polyurethane topcoats of the other systems, system 1 with ethyl silicate zinc rich primer and epoxy intermediate, was the one that presented the best corrosion protection when exposed in artificial and natural salty environments. At the test site, the worst anticorrosive behaviour seems to be presented by the system 2 with two coats of solvent free epoxy paint.     

海上风力发电机塔筒用湿固化富锌底漆的研制

采用环氧改性湿固化聚氨酯树脂为基体树脂,鳞片状锌粉为防锈颜料,有机膨润土SD-2为防沉剂,研制了一种单组分湿固化富锌底漆。该涂料施工方便,且对底材表面处理要求低,与传统的富锌底漆相比,防腐性能更优,适用于高防腐要求的海上风力发电机塔筒。     

Preparation of light color antistatic and anticorrosive waterborne epoxy coating for oil tanks

Utilizing waterborne epoxy resin as a main film-forming material, a kind of light color antistatic and anticorrosive waterborne epoxy coating with volume resistivity of 10⁶ was prepared by adding light color conductive pigments and anticorrosive pigments. The coating has excellent corrosion protective and outstanding decorating properties, which is applicable for the inner coating of oil tank. The effects of the type and the amount of conductive pigments, the film thickness, the curing temperature, and the curing time on the volume resistivity of the film were discussed. The properties of the several kinds of waterborne epoxy resin were compared and the determining of anticorrosive pigments was discussed.     

影响富锌底漆防腐性能的因素分析

简要介绍了富锌底漆的防腐机理及标准中对富锌底漆干膜锌含量的指标要求,重点探讨了成膜物、锌粉、防锈颜料、漆膜厚度对富锌底漆防腐性能的影响。     

本征型与添加型导静电防腐涂料的性能对比和应用

介绍了钢质油罐内壁导静电防腐涂料的性能要求。通过本征型导静电涂料与添加型导静电涂料的性能对比，以及两者的实际应用情况对比，得出本征型导静电涂料更适用于钢质油罐内壁的结论。     

风力发电机塔筒防腐涂料的研制与施工

根据风力发电机塔筒的使用环境、防腐涂层设计要求及施工要求研制了用于风力发电机塔筒的防腐蚀涂料,涂层系统由环氧富锌底漆、厚浆环氧中间漆、脂肪族聚氨酯面漆组成,文章讨论了基料、助剂等对涂层性能及外观的影响,以及施工中遇到的问题和解决方法。     

新型多功能环氧防腐涂料的研制

研制成一种新型多功能环氧防腐涂料,其贮存稳定性和施工性优良,具有底面合一、带锈防锈、带潮涂装、低温固化以及长效防腐等特点。