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实用涂料防腐蚀技术问答 总被引:4,自引:0,他引:4
实用涂料防腐蚀技术问答王泳厚(广州制漆厂,510380)6防腐蚀涂料如何分类从涂料的保护作用来看,常分为防锈涂料和防腐蚀涂料两大类。防锈涂料就是用于防止钢铁受自然因素锈蚀的各种底漆。而防上钢铁受化学介质或化学烟雾腐蚀的各种涂料,则称为防腐蚀涂料。按照... 相似文献
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该文阐述了绿色无机颜料和绿色有机颜料在氟碳涂料、高级建筑涂料、重防腐蚀涂料、汽车涂料、卷材涂料、隔热反射涂料、示温涂料、导电涂料等高性能涂料以及对环境友好的水性涂料、粉末涂料、紫外光固化涂料等领域的应用。 相似文献
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大规模的油气开发在为国家提供能源保证的同时,对生态环境也造成了严重的破坏。绿色化学是从源头上阻止污染物生成的新学科,其应用已经成为环境保护和预防污染的重要组成部分。根据绿色化学内涵和外延,分别探讨了绿色化学在油气开采、油气田防腐蚀、油气田污染治理以及油气田管理等方面的应用情况。为企业实施绿色战略、采用绿色技术、生产洁净产品提供借鉴。 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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钢铁腐蚀因素分析及不同防腐底漆的性能比较 总被引:2,自引:0,他引:2
对影响钢铁腐蚀的主要条件及其影响因素进行了分析,简述了防腐涂料的作用原理,重点对几种富锌底漆的性能进行了试验比较及综合分析。 相似文献
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《Journal of Adhesion Science and Technology》2013,27(2):131-151
Using sol-gel technology, thin organic/ceramic (ceramer) coatings have been applied to metal surfaces to enhance such surface properties as adhesion promotion and corrosion prevention. Isotropic coatings have been found to be effective in certain applications such as corrosion prevention, but the formation of anisotropic (functionally gradient) coatings permits greater flexibility over the resulting properties. Isotropic coatings derived from tetraethoxysilane, for example, have been found to effectively inhibit corrosion while being only 100-1000 A thick. These coatings do not, however, promote adhesion. Thin coatings made from traditional silane adhesion promoters alone are unable to prevent corrosion of metallic substrates. Using monomers with appropriate reactivities permits the single-step synthesis of anisotropic coatings that can both promote adhesion and prevent corrosion. These types of anisotropic coatings allow the physical and chemical properties of a coating to be varied as a function of the distance from the substrate and confer properties to the substrate that would not be possible from a single isotropic coating. The principle behind the construction of these anisotropic coatings is general enough that it can be used in many applications where microengineering of surface structures is important. 相似文献
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详细阐述了金属腐蚀的危害机理,分析了影响数控机床腐蚀的因素,介绍了防腐涂料及防腐技术在数控机床上的应用现状,提出了数控机床整机防腐的对策及防锈措施。 相似文献
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