2022-3-24 11:17| 发布者: steelfu4mo| 查看: 1022| 评论: 0 |原作者: 佛山万庆物资
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很多人在选购pcm彩涂板的时候，不知道真正优质的pcm彩涂板与劣质的pcm彩涂板具体区别在哪里，因为表面都差不多，而且不使用一段时间也不会出问题。对涂层的选择要考虑的要素很多，它主要包括涂层种类、涂层厚度、涂层颜色和涂层光泽度。另外，有时侯还要考虑涂层的底漆和背面涂层的要求。目前用于彩色涂层钢板的涂料种类有聚酯涂层（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)等。对颜色的选择主要是考虑与周围环境的匹配和客户的喜好，但从使用技术角度讲浅颜色涂料的颜料选择余地大，可选择耐久性优越的无机涂料（如钛白粉等），而且涂料的热反射能力强（反射系数达到深色涂料的一倍）夏季涂层本身的温度相对就低，这对涂层寿命延长是有益的。另外，即使涂层变色或粉化，浅颜色涂层变化后与原颜色的反差小，对外观的影响就不大。而深颜色（尤其是比较鲜艳的颜色）采用有机颜色的居多，遇紫外线照射容易褪色，最短的3个月就变颜色。据相关试验资料表明，在夏季中午外界温度最高时，白色表面比蓝色表面温度低10度，比黑色表面低19度。不同颜色对太阳光的反射能力是不同的。
When a lot of people are in choose and buy color coating board, do not know real high quality color coating board and inferior color coating board specific difference is where, because the surface is similar, and do not use a period of time also won't give a problem.The choice of coating to consider a lot of elements, it mainly includes coating type, coating thickness, coating color and coating gloss.In addition, sometimes you also consider the coating primer and the back coating requirements.At present, the coating types used in color coating plate are polyester coating (PE), fluorocarbon coating (PVDF), silicon modified coating (SMP), high tolerance coating (HDP), propionacid coating, polyurethane coating (PU), plastic sol coating (PVC) and so on.The choice of color is mainly to match the surrounding environment and customer preferences, but from the technical perspective of light color paint pigment choice, can choose superior durability of inorganic coating (such as titanium dioxide, etc.), and coating thermal reflection ability (reflection coefficient to twice the dark coating) summer coating temperature is relatively low, it is beneficial to coating life.In addition, even if the coating changes color or powder, the contrast between the light color coating and the original color is small, and the impact on the appearance is not large.And deep color (especially more bright color) use organic color in the majority, encounter ultraviolet light irradiation easy to fade, the shortest 3 months change color.According to the relevant test data, in the summer noon outside the temperature is the highest, the white surface is 10 degrees lower than the blue surface temperature, and 19 degrees lower than the black surface.Different colors have a different ability to reflect sunlight.