| 彩钢知识，知多少？ |
| 添加时间：2017/11/20 15:32:53 浏览次数： |
| 一、啥叫彩钢？ First, what is called color steel? 彩色涂层钢板，俗称彩钢板，以冷轧钢板镀上其他金属非金属或合金（锌、铝、镁、锰、硅等）为基板，经过表面处理转化后（脱脂、磷化、铬酸盐），涂覆有机涂层经烘烤制成，具有轻质高强、色彩鲜艳、耐久性好等特点。广泛应用于建筑、家电、装潢、汽车等领域。 Color coated steel plate, commonly known as color steel plate, cold rolled steel plated to other metal non metal or alloy (aluminum, zinc, magnesium, manganese, silicon etc.) as substrate, after surface treatment after transformation (degreasing, phosphating, chromate), organic coatings made by baking, has the characteristics of high strength, bright color, durability good. Widely used in architecture, home appliances, decoration, automobiles and other fields. 彩钢板的强度取决于基板材料和厚度，耐久性取决于镀层、表面涂层和加工工艺，涂层有聚酯涂层（PE）、氟碳涂层（PVDF）、硅改性涂层（SMP）、高耐侯涂层（HDP）、丙稀酸涂层、聚氨脂涂层（PU）、塑料溶胶涂层（PVC） Color steel plate strength depends on the substrate material and thickness, durability depends on the coating, surface coating and processing technology, coated with polyester coating (PE), fluorocarbon coating (PVDF), silicon modified coating (SMP), high corrosion resistance coating (HDP), acrylic acid, polyurethane coating, plastic coating (PU) sol coating (PVC) 等。涂层结构有二涂一烘、二涂二烘等，免维护使用年限根据环境大气不同可为10－30年。 Etc.. The coating structure has two coating, one baking, two coating and two baking, etc. the maintenance free service life can be 10-30 years depending on the ambient atmosphere. 涂层结构 Coating structure 上表面 下表面 The lower surface of the upper surface 一次涂层 不涂 1/0 One coat is not coated with 1/0 一次涂层 一次涂层 1/1 One coat once coating 1/1 二次涂层 不涂 2/0 The two coating is not coated with 2/0 二次涂层 一次涂层 2/1 Two coating one coat 2/1 二次涂层 二次涂层 2/2 Two coating two coat 2/2 二、常用涂料 Two, commonly used coatings 1、聚酯(PE、Polyester ) 1, polyester (PE, Polyester) PE涂料对于材质有良好的附着性，彩涂钢板易于加工成型，价廉且产品多，颜色和光泽的选择余地大。聚酯涂料对耐紫外光性与涂膜耐粉化性，并不理想，因此PE涂料的使用仍需受到一些限制，一般用在空气污染不严重的地区或需多次成型加工的产品。 PE coating has good adhesion to the material. Color coated steel sheet is easy to process, low price and many products, and the choice of color and luster is great. Polyester coatings are not ideal for UV resistance and film coating resistance, so the use of PE coatings still need some restrictions, generally used in areas where air pollution is not serious or need to be processed several times. 2、硅改性聚酯（SMP,Silicone Mobified Polyester) 2, silicon modified polyester (SMP, Silicone, Mobified, Polyester) 由于聚酯含有活性基-OH/-COOH，极易和其它高分子化和物反应，为改良PE的耐阳光性与粉化性，以色泽保持性与耐热性优的Silicone树脂作变性反应，和PE的变性比可于5%—50%之间，SMP提供钢板更好的持久性，其防蚀年限可长达10-12年，当然其价格也比较PE为高，但因Silicone树脂对材质的附着性和加工成型性并不理想，因此SMP彩涂钢板并不适用于需多次成型加工的场合，大部分用于建筑屋顶及外墙。 Because the polyester containing active base -OH/-COOH, easy and other polymer and reaction is improved PE resistance and pulverization of the sun, to maintain color and excellent heat resistance of Silicone resin modified reaction, and PE ratio from 5% to 50% between degeneration, persistent SMP plate provides better, the anti corrosion period can be up to 10-12 years, of course, the price is relatively high in PE, but due to material adhesion and molding of Silicone resin is not ideal, so SMP color coated steel plate is not suitable for multiple processing occasions, mostly used for building roof and exterior wall. 3、高耐侯聚酯(HDP、High durable Polyster) 3, high durability polyester (HDP, High durable Polyster) 对于PE和SMP的缺点，英国HYDRO公司（现被BASF收购）、瑞典的BECKER等在2000年初其开发出可达到PVDF涂层60-80%耐候性HDP聚酯涂料，且优于普通的硅改性聚酯涂料，其户外耐候性达到15年。高耐候聚酯树脂在合成时采用含环己烷结构的单体，来达到树脂的柔韧性、耐候性和成本的平衡，采用不含芳香族的多元醇和多元酸来减少树脂对UV光线的吸收，达到涂料的高耐候性能。涂料配方中加入紫外线吸收剂和位阻胺（HALS）提高漆膜耐候性能。高耐候聚酯卷材涂料在国外已被市场认可，该涂料性价比十分突出。 For the shortcomings of PE and SMP, the British HYDRO company (now acquired by BASF), Sweden's BECKER and so on, in the early 2000, it developed PVDF coating 60-80% weather resistant HDP polyester coating, and better than ordinary silicone modified polyester coating, its outdoor weathering resistance reached 15 years. High weather resistant polyester resin with monomer containing cyclohexane structure in synthesis, to achieve the flexibility of the resin, durability and cost balance, which did not contain aromatic polyols and polybasic acid to reduce the absorption of resin for UV light, high weatherability of coatings. Adding ultraviolet absorber and hindered amine (HALS) in coating formula to improve weatherability of paint film. High weather resistant polyester coil coating has been recognized in foreign markets, and its performance is very outstanding. 4、PVC 塑料溶胶（PVC Plastisol） 4, PVC sol (PVC Plastisol) PVC树脂有很好的耐水性和耐化学药品性，一般以高固形份涂装，其涂装厚度于l00-300μm之间，能提供平滑的PVC涂膜或轻压花处理作压花涂膜;由于PVC涂膜为热可塑性树脂，具有高膜厚，能提供钢板良好的保护。但PVC耐热性较弱。在早期在欧洲使用较多，由于其环保属性相对较差，目前使用越来越少。 PVC resin has good water resistance and chemical resistance, with high solid content of coating, the coating thickness between l00-300 m, can provide a smooth PVC film or light embossing processing for embossing coating; PVC coating due for thermoplastic resin, with high film thickness, can provide protection for steel plate good. But the heat resistance of PVC is weak. It was used more frequently in Europe in the early stage, because of its relatively poor environmental protection properties, the current use of less and less. 5、PVDF 5, PVDF 由于PVDF的化学键与化学键间，有很强的键能，因此涂料具有非常好的防蚀性和色泽保持性，在建筑工业用彩涂钢板涂料中，是属于最高级产品，且分子量大又为直键型结构，因此除耐化学药品性之外，机械性能、耐紫外线和耐热性能也很突出。在一般环境下，其防蚀年限可达20—25年之久。近年来，国内开始盛行以三氟氯乙烯和乙烯酯单体共聚的含氟树脂，大量应用于建筑的外墙和金属板，由于使用易水解的乙烯酯单体和氟的含量较PVDF低30%左右，因此其耐候性与PVDF比较，有一定的差距。宝钢所生产的氟碳涂层，其涂层PVDF含量不小于70%（其他为丙稀酸树脂）。 Due to chemical bonding and chemical bonding between PVDF, there is a strong bond energy, so the coating has good corrosion resistance and color retention, in the construction industry with painted steel coatings, is among the most advanced products, and large molecular weight and straight bond type structure, so in addition to chemical resistance besides, the mechanical properties, UV resistance and heat resistance is also very prominent. In general environment, the corrosion prevention period can reach 20 - 25 years. In recent years, the country has become popular with fluorine resin containing fluorine three vinyl chloride and vinyl monomers, is widely used in the construction of the wall and the metal plate, the 30% low hydrolysis of vinyl ester monomer and the fluorine content is about PVDF, so the weather resistance compared with PVDF, there is a certain gap. Fluorocarbon coating produced by Baosteel, the content of PVDF is not less than 70% (the other is acrylic resin). 6、聚氨酯 6, polyurethane 近年所开发的一个面漆新品种，综合性能优异，价格昂贵，正在推广中。 A new top coat developed in recent years, which has excellent comprehensive performance and high price, is being popularized. 7、丙稀酸树脂 7, acrylic resin 综合性能好，价格昂贵，只在特定领域内使用（如集装箱用）。 Comprehensive performance is good, expensive, only in a specific field (such as container). 颜色分类： Color classification: 除各大厂自有色系外，彩钢行业主要色系标准是采用德国欧标色卡（1927年），中文译为：劳尔色卡（RAL K5,RAL K7,......） In addition to the manufacturer's own color system, the main color standard of the color steel industry is the use of German European standard color card (1927), the Chinese translation is: Raul color card (RAL K5, RAL K7,...) 部分厂家色系： Color lines of some manufacturers: RAL K5/K7色系： RAL K5/K7 color system: 世界十大涂料品牌排名（来源网络，排名标准不一） Top ten brands of coatings in the world (source network, ranking standards vary) top1.AKZONOBEL (N.L.) 阿克苏诺贝尔 (荷兰) Top1.AKZONOBEL (N.L.) AKZO NOBEL (Holland) 阿克苏诺贝尔是全球财富500强公司，是世界领先的大型工业公司，也是世界最大的装饰漆公司之一，业务遍布欧美及世界各地，产品涉及工业涂料，粉末涂料，船舶及防护涂料，包装涂料，纸浆和造纸化学品，基础化学品及聚合物化学品等，广泛生产和供应各类油脂，涂料和专业化学品，旗下拥有包括多乐士，来威漆，多乐士专业，美时丽等多个世界驰名的建筑装饰漆品牌。 AKZO NOBEL is a global Fortune 500 company, is the world's leading large-scale industrial company, is one of the world's largest decorative paint companies, business all over Europe and around the world, the products involved in industrial coatings, powder coatings, marine and protective coatings, packaging coatings, pulp and paper chemicals, basic chemicals and polymer chemicals, extensive production and supply all kinds of oils, coatings and specialty chemicals, which owns to Granville paint, including Dulux, Dulux, mesuli and many other world famous brand building decorative paint. |
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