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怎么防止彩涂卷老化

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怎么防止彩涂卷老化

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随着科学技术的发展,彩涂卷广泛应用于建筑、交通、家电等行业。对于长期施工或存放在阳光下的彩涂卷,会发生老化,这是不可避免的。为了防止这种现象,我们应该怎么做?下面介绍一下彩色卷轴的相关内容,希望下面的内容对您有所帮助。

涂层老化或光化学反应的必要条件是涂层的表面成分能够吸收辐射。其次,当分子吸收的辐射能大于分子键吸收的辐射能时,涂层会降解。因为光的波长越短,包含的能量就越高。涂料在大气环境中的老化是指涂料分子在阳光下吸收的紫外光带能量大于其分子键能,从而导致涂料分子的降解。随着涂层的老化,基材的体积逐渐减少,涂层表面逐渐变得粗糙光滑。这种基础材料的损失将留下更稳定的颜料颗粒,这些颗粒以未粘合粉末的形式留在涂层表面,这一过程称为粉碎。不同涂层厚度的聚酯涂层辊的耐老化性能存在较大差异。彩涂薄钢板的耐老化性能较差,而常规厚度的涂层的耐老化性能相对较好。

以上是关于彩涂卷的相关内容,希望您在使用过程中能多加注意。如果您不知道或不想咨询,可以直接联系我们的天物客服。我们将为您提供专业的服务和优质的产品。

With the development of science and technology, color coatings are widely used in construction, transportation, household appliances and so on. For the long-term construction or storage of color coatings in the sun, aging will occur, which is inevitable. In order to prevent this phenomenon, what should we do? Below to introduce you about the relevant content of the color scroll, I hope that the following content can be helpful to you.
The necessary condition for the aging or photochemical reaction of the coatings is that the surface components of the coatings can absorb radiation. Secondly, when the radiation energy absorbed by molecules is greater than that absorbed by molecular bonds, the coatings can degrade. Because the shorter the wavelength of light, the higher the energy it contains. The aging of coatings in atmospheric environment is that the coatings molecules absorb the energy of ultraviolet light band higher than their molecular bond energy in sunlight, which leads to the degradation of coatings molecules. With the aging of the coating, the bulk of the base material gradually loses, and the surface of the coating gradually becomes rough and glossy. This loss of the base material will leave more stable pigment particles, which remain on the surface of the coating in the form of unbonded powder, a process called pulverization. The ageing resistance of polyester coated rolls with different coating thickness is quite different. The ageing resistance of thin coated color coated sheets is poor, and that of coatings with normal thickness is relatively good.
Above is about the relevant content of the color scroll, I hope you can pay more attention in the process of using. If you don't know or want to consult, you can contact our staff directly. We will provide you with dedicated service and high quality products.



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