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介绍了一种蓖麻油改性的环氧聚氨酯防腐蚀涂料.以蓖麻油改性异氰酸酯预聚物和环氧树脂为基料,以价格较为低廉的滑石粉、钛白粉、沉淀硫酸钡为颜填料制备了成本较低,性能较为优异的防腐蚀涂料.检测了优化条件下制备的涂料的性能.以蓖麻油改性环氧聚氨酯防腐蚀涂料和未经蓖麻油改性的环氧聚氨酯防腐蚀涂料进行防腐蚀性能对比,蓖麻油改性环氧聚氨酯防腐蚀涂料的耐酸、碱、盐水等防腐蚀性能更好. 相似文献
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用有机硅、丙烯酸树脂、环氧树脂和功能颜填料配制了一种烧蚀性隔热防腐蚀涂料,进行高温隔热性能及防腐蚀性能检测,探讨了烧蚀性隔热涂料在未经受高温冲击时涂层的防腐蚀性能(耐湿热和耐盐雾性能等)和在不同的高温下,烧蚀性隔热涂料的保温隔热性能,以及防腐蚀性能与耐高温隔热性能间的协调关系。 相似文献
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以水性环氧改性丙烯酸酯乳胶为成膜物质,配以氧化铁红、磷酸锌、云母粉等防腐蚀颜填料以及助剂,制备了具有优异机械力学性能以及防腐蚀性能的水性防腐蚀涂料。重点讨论了成膜物质、助剂、颜填料以及颜填料体积浓度(PVC)对涂料性能的影响。结果表明:涂料中加入少量的相容剂可以解决水性防腐蚀涂料的贮存稳定性问题;当PVC在38.4%~44.3%之间时,水性防腐蚀涂料具有优异的耐介质性能,尤其是突出的耐碱性能。 相似文献
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介绍了可剥性防腐蚀封存涂料的主要组成、理化性能、施工工艺、应用实例。该涂料具有优良的防腐蚀性能,独特的可剥性。稳定的火焰自熄性,简便的修复性,在各类设备及零部件防腐蚀封存上有较广阔的应用前景。 相似文献
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超薄膨胀型钢结构防火涂料防腐性能的研究 总被引:5,自引:0,他引:5
介绍了钢材的腐蚀及防腐机理,采用复合改性丙烯酸树脂作为基料,研制出一种既具有高效防火隔热性能,又具有优异的防腐蚀性能的超薄膨胀型钢结构防火涂料。 相似文献
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Advancements in the field of corrosion protective coatings have headed towards the utilization of conducting polymer-based blends and composites for the formulation of corrosive protective paints and coatings. With the aim to develop an ecofriendly waterborne conducting polymer-based protective coating material, corrosion protective behavior of waterborne resorcinol formaldehyde (RF)-cured composite coatings of poly(1-naphthylamine) (PNA)/poly(vinylalcohol) (PVA) was investigated on mild steel (MS). The corrosion protective performance was evaluated by physicochemical, physicomechanical, corrosion protective efficiency and resistance in acid, alkaline and saline media by open circuit potential (OCP) measurements. The morphologies of coated, uncoated as well as corroded samples were analyzed by SEM technique. Superior corrosion protective performance was observed which was compared to the reported solvent-based conductive polymer coatings in different corrosive media. 相似文献
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Conducting polymers (CP) have been envisaged as nontoxic substitutes for chromates in corrosion protective coatings owing to their environmental stability, excellent corrosion resistant performances and good adhesion to metal substrate. Recent advancements in the field of corrosion protective coatings have therefore headed towards the utilization of conducting polymers as “smart corrosion inhibitors” in the formulation of eco-friendly anti-corrosive coatings. With the aim to develop a facile method for the synthesis of anti corrosive coating material having superior corrosion protective properties, the present work reports the corrosion studies of polypyrrole/DGEBA composite coatings on mild steel (MS). The coatings were characterized by physicochemical as well as physicomechanical studies while the corrosion protective performance was evaluated by chemical resistance in different corrosive media, corrosion rate and open circuit potential (OCP) measurements. The morphologies of corroded, coated, uncorroded and uncoated samples were investigated by SEM studies. The composite coatings were found to show far superior anti corrosive performance than PANI/epoxy coatings in acid, alkaline as well as saline environments. 相似文献
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The present work study reports the comparative corrosion protective performance of nanostructured methyl orange (MO) doped polyaniline (PANI) and camphorsulphonic acid (CSA) doped poly(1-naphthylamine) (PNA) dispersed polyurethane-based composite coatings against mild steel (MS). The influence of the dopant on the passivation of metal was analyzed using two different dopants. The nanostructure of the conducting polymers—MO-PANI and CSA-PNA was confirmed by transmission electron microscopy (TEM). The corrosion protective performance of the coatings against MS was evaluated by the physico-mechanical properties and corrosion rate measurements. 相似文献
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以聚苯胺/凹凸棒土纳米复合材料(PANI/ATP)作为填料,以环氧树脂为成膜物质,制备了PANI/ATP环氧复合防腐涂料.研究了PANI/ATP的状态、PANI/ATP的添加量、固化比等对涂层的防腐性能的影响.采用傅里叶红外光谱(Fr-IR)、开路电位(OCP)及极化曲线(Tafel)等测试手段对复合涂层进行了结构表征和防腐性能研究.Tafel极化曲线和开路电位显示,在填料量为5%的情况下,复合涂层的防腐性能较佳,腐蚀电位为-1.098 V,较纯环氧涂层高327 mY;添加了PANI/ATP的涂层较纯环氧涂层的力学性能有很大的提高. 相似文献