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对临海港口机械设备钢结构表面的腐蚀条件进行了分析,介绍了港机防腐用主要涂料品种的性能特点,并提出了防腐涂装方案和施工要点。 相似文献
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提出了具体的新建大型港口机械与设备钢结构防护涂层配套方案,并对涂装施工工艺要点进行了叙述. 相似文献
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聚乙烯防腐性能优异,粉末喷涂法则适合在形状复杂、不适宜包覆防腐的设备表面做防腐层。介绍了用粉末喷涂法制作PE防腐涂层的实验过程,研究用该方法制作管道防腐涂层的可行性。 相似文献
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阐述了低温设备、管道在保冷条件下采用常规的防腐涂层防腐效果差,防水卷材做防潮层易开裂,引起金属表面的腐蚀。分析了涂层损坏和金属表面腐蚀的原因。论述了采用环氧铁红底漆与环氧玻璃鳞片涂料对金属表面进行防腐,防潮层采用阻燃玛蹄脂作保冷层,对低温设备、管道进行保冷可以收到较好的效果。 相似文献
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基于化工设备金属腐蚀及环氧防腐涂层的应用研究 总被引:1,自引:0,他引:1
化工设备的腐蚀主要是金属腐蚀。采用防腐涂层是抑制金属腐蚀最普遍、最经济的方法。根据金属设备腐蚀工况下表面沉积物的产生机理,对金属表面清除难易程度进行分析,就环氧树脂防腐涂层的应用,环氧防腐涂层的作用机理以及工艺性能和应用前景作以探讨。 相似文献
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阐述了大型风力发电设备的结构和特点,提出了大型风力发电设备零部件所采用的防腐技术和方法,同时针对相应的防腐技术和方法进行论述,并着重阐述大型风力发电设备所采用的涂层防腐技术。 相似文献
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《中国石油和化工标准与质量》2019,(7):245-246
新时期以来,油田企业的安全运营压力持续上扬。油田压力容器和储罐作为重要的工艺生产设备,其安全、稳定运营对企业而言尤为重要。随着涂层技术的快速发展,在油田压力容器和储罐的防腐作业中得到了广泛的应用。油田企业应明晰涂层防腐和失效机制,合理地选用涂料类型,并严控内涂层施工工程,以确保容器的安全可靠运行。本文对压力容器和储罐涂层防腐的机理和失效机制进行了阐述,就压力容器和储罐防腐涂层技术的涂料选择展开了分析,并提出了油田压力容器和储罐内涂层施工质量控制的有效策略,将为我国油田企业压力容器和储罐内涂层技术的应用和研发提供基础思考。 相似文献
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《Ceramics International》2022,48(18):25858-25871
Graphene-modified phosphate-based metal/ceramic composite coatings were prepared for corrosion protection in the high-temperature marine environment. The morphology and structure of the coating were observed by SEM, and the high-temperature anticorrosion performance of the coating was analyzed by electrochemical measurement and salt spray-high temperature cycle test. The results showed that the addition of 0.1 wt% graphene could bridge the aluminum particles inside the composite coating and extend the sacrificial anode protection time of the coating in the 3.5 wt% NaCl solution from less than 4 days to more than 8 days, thus avoiding the local failure of the coating and improving the anticorrosion performance. Besides, the addition of graphene nanosheets at low content also enhanced the physical barrier effect of the coating and prolonged the penetration path of the corrosive medium without destroying the structure of the composite coating. 相似文献
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Jian Zhang Xiangdong Zhang Zhongyuan Liu Lanhe Zhang Yue Zhao Yuanchun Li Chen Shao Junlian Ren 《应用聚合物科学杂志》2023,140(6):e53459
Water-based anticorrosive coatings have poor water resistance, which easily lead to coating deterioration and metal corrosion. In order to improve the anticorrosion performance of waterborne coating, herein, the polytetrafluoroethylene/dimethyl siloxane/epoxy resin (PTFE/PDMS/EP) hydrophobic anticorrosive coating was prepared by layer-by-layer construction. The spatial structure and microscopic morphology of the hydrophobic coating were analyzed by XRD, FTIR, and SEM. The hydrophobicity and corrosion resistance of the composite coating were analyzed by hydrophobicity test, electrochemical polarization curve, hydrophobicity and corrosion resistance test of the mixed layer, Tafel polarization curves, and AC impedance spectrum. The results showed that the water contact angle of PTFE/PDMS/EP coating reached 141° and the protection efficiency of PTFE/PDMS/EP coating was 98.62%. After soaking for 7 days, the corrosion process still stays at the initial stage, which was mainly due to the good sealing and barrier properties and high anticorrosion efficiency of PTFE/PDMS/EP coating. The coating has high corrosion protection efficiency and long service life, which is of great significance to metal corrosion protection in harsh marine environments. 相似文献
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埋地管道防腐涂料的发展趋势 总被引:1,自引:0,他引:1
腐蚀是引起埋地管道破坏和失效的主要原因之一,研究管道的腐蚀与防护技术,对延长管道的使用寿命以及保证工业生产的顺利进行具有重要意义。本文介绍了埋地管道的腐蚀机理和防腐措施,重点介绍了埋地管道防腐涂料的种类、优缺点及其发展趋势。 相似文献
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Effects of particle sizes and shapes of zinc metal on the properties of anticorrosive coatings 总被引:4,自引:0,他引:4
Andra Kalendov 《Progress in Organic Coatings》2003,46(4):324-332
The paper deals with a study of the zinc particle sizes and shape effects on the anticorrosive coating properties. As a binder the epoxyester resin is used. The zinc particle size and shape effects are discussed from the mechanical coating properties, film permeabilities to water vapor and above all the pigment anticorrosion protection efficiency points of view. The connection between the spherical particle sizes and the coating anticorrosive efficiency was found. The smaller particle sizes mean better anticorrosive coating properties. The lamellar zinc particles exhibit the highest anticorrosion efficiency at a concentration around 20 vol.%. 相似文献
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