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米糠油改性环氧酯铁红防锈底漆的研究 总被引:1,自引:0,他引:1
米糠油主要由油酸、亚油酸和棕榈酸组成,属半干性油,具有了作为涂料基料的良好理化特性.研究表明,选用米糠油、桐油、环氧树脂和氧化铁红合成的铁红环氧酯防锈底漆,具有无毒、低温固化、防锈能力强等特点.本文介绍了底漆的配方、生产工艺,并讨论了影响底漆性能的因素. 相似文献
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采用自主合成的二氧化钛、氧化锌、硫酸钡和碳酸钙等纳(微)米颜填料对水性环氧树脂涂料进行改性,成功地制备出性能优异的改性水性环氧树脂防锈底漆。研究颜基比(w)对水性环氧树脂防锈底漆的耐盐雾腐蚀性能的影响,确定了颜基比(w);并使用扫描电镜(SEM)对改性防锈底漆的形貌和尺度进行表征。结果表明:使用纳(微)米颜填料成功地实现对环氧树脂防锈底漆的改性,当颜基比(w)为22%时,此时水性环氧防锈底漆具有最佳的综合性能。 相似文献
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使用电化学方法对2种不同的醇溶型无机锌车间底漆进行了研究,结合浸泡以及盐雾的实验结果,发现2种车间底漆中锌含量对阴极保护时效有影响,但不是决定车间底漆防锈能力的唯一因素,锌含量与防锈颜料对于车间底漆的防锈性能有协同效果。其中,锌粉在早期提供阴极保护的作用,而防锈颜料在后期对基底提供防锈保护。对于锌粉含量相对较高的车间底漆,锌粉并不是从一开始就全部参加阴极保护作用,而是一部分具有激活潜力的锌粉在另一部分锌粉率先反应之后才由“未激活状态”转变为“激活状态”进而提供阴极保护的作用。 相似文献
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对比分析了几种常规涂料体系(如环氧富锌底漆+聚酰胺环氧中涂+聚酰胺环氧面漆及环氧铁红底漆+环氧云铁中涂+聚酰胺环氧面漆)和高性能涂料体系的优劣,最后选用了钛纳米聚合物涂料对白土精制装置中的滤板进行防护,2年多的实际应用表明了其良好的防护效果. 相似文献
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以水性环氧树脂乳液及水性环氧固化剂为主要成膜物质,氧化铁红与磷酸锌为防锈颜料,滑石粉和硫酸钡为填料,研制开发了一种性能优良的水性环氧防锈底漆。 相似文献
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The failure path of iron/epoxy and titanium/epoxy lap joints prepared from adherends pretreated with dilute aqueous solutions of ω-aminopropyltriethoxysilane (ω-APS) and then exposed to water at 60°C for varying times was determined using X-ray photoelectron spectroscopy (XPS). Iron/epoxy lap joints prepared using T-APS primers applied at pH 8.0 and tested without exposure to water failed near the oxide/primer interface with only a small amount of adhesive left on the substrate failure surface. Iron/epoxy joints that were primed with T-APS at pH 10.4 and tested without immersion in water failed partly within the adhesive and partly near the interface. All of the iron/epoxy joints failed in the primer near the primer/oxide interface when tested after exposure to water for seven days but very little corrosion of the substrates was observed. When titanium/epoxy lap joints were tested without exposure to water, failure was partly within the adhesive and partly near the primer/oxide interface regardless of the pH at which the primer was applied. However, the failure path shifted to near the primer/oxide interface after the joints were immersed in water for seven days. It was concluded that failure of the joints after exposure to water was associated with hydrolysis within the primer rather than with extensive corrosion of the substrate. 相似文献
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通过引入表面活性剂,合成了易分散纳米聚苯胺(PANI-1)。运用傅里叶变换红外光谱仪(FTIR)和场发射扫描电镜(FE-SEM)表征了聚苯胺的结构,利用电化学方法研究了聚苯胺的防腐性,并采用聚苯胺对环氧铁红底漆进行改性。研究发现,经过表面活性剂改性的聚苯胺为松散纳米结构,容易分散于有机溶剂中;腐蚀测试结果表明,聚苯胺对碳钢有较好的防腐蚀能力,当PANI-1含量为3.5%时,纳米聚苯胺改性环氧铁红底漆涂层具有较好的防腐蚀能力,可应用于桥梁、道路护栏等钢结构的防腐工程。 相似文献
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The techniques of Auger electron spectroscopy (AES) and x-ray photoelectron spectroscopy (XPS) have been used to study the locus of failure of epoxy resin joints. The effects of a long water immersion and the application of a silane-based primer have also been studied. Results indicated that for dry joints fracture occurred near an epoxy resin/metal interface while with water-soaked unprimed joints, fracture occurred interfacially between the adhesive and iron oxide. The application of the primer to the metal surface prior to bonding prevented the formation of a water-formed oxide although fracture was then found to occur through the primer. 相似文献
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新型环氧防腐涂料的研究 总被引:1,自引:0,他引:1
采用在环氧树脂中加入纳米复合铁钛粉防锈颜料WD—D-325、固化剂、制备了新型环氧树脂防腐涂料。由于纳米技术的特性,该防腐涂料具有较高的防腐性、优异的附着力和柔韧性。实验确定了复合铁钛粉防锈颜料在环氧防腐涂料中的添加量。作为新型的环保颜料,复合铁钛粉防锈颜料可以替代红丹、锌铬黄等颜料。 相似文献
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以液态环氧树脂、稀释剂为基体树脂,以腰果壳液改性酚醛胺为固化剂,以复合铁钛粉、磷酸锌、氧化铁红、聚四氟乙烯、沉淀硫酸钡、陶瓷微珠等为填料,在多种功能助剂的配合下制备成无溶剂环氧输油气管内低表面处理防腐减阻涂料.集带锈带油、带湿涂装为一体,具有防腐、减阻、耐磨等特性. 相似文献