紫外线吸收剂作用 |
添加时间:2019/8/10 9:12:10 浏览次数: |
作用 Effect 紫外线吸收剂是一种光稳定剂,能吸收阳光及荧光光源中的紫外线部分,而本身又不发生变化。 Ultraviolet absorber is a kind of light stabilizer, which can absorb the ultraviolet part of sunlight and fluorescent light source without changing itself. 由于太阳光线中含有大量对有色物体有害的紫外光,其波长约290-460纳米,这些有害的紫外光通过化学上的氧化还原作用(Redox reaction),使颜色分子最后分解褪色. Because solar light contains a lot of ultraviolet light harmful to colored objects, its wavelength is about 290-460 nanometers. These harmful ultraviolet light decomposes and fades the color molecules through chemical redox reaction. 防止有害的紫外光对于颜色的破坏的方法既有物理的,也有化学的. There are physical and chemical ways to prevent harmful ultraviolet light from destroying color. 这里只简单介绍以化学的方法,即使用紫外线吸收剂对受保护的物体实施有效的防止,或削弱其对颜色的破坏. Here is only a brief introduction of chemical methods, even using ultraviolet absorbents to effectively prevent or weaken the damage to the color of protected objects. |
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