uv 用黑色色浆

cosmosqh · 发表于 2009-4-3 10:20:43

本人因客户需求，开发黑色UV漆，不知道用什么牌号的碳黑合适，请那位大虾告诉我

anarchist · 发表于 2009-4-3 13:35:38

Mogul E，可以联系广州BVC要样品

liutie1977 · 发表于 2009-4-3 16:04:32

请教一下楼上的，UV体系黑颜料有什么特别的要求啊？

wang3taiw · 发表于 2009-4-5 18:27:44

FW200 就可以只是分散要很细才能固化。

anarchist · 发表于 2009-4-7 09:09:31

紫外固化体系里很重要的是单体，低聚物和光引发剂，由于炭黑对很宽波长范围的光都有非常强的吸收，后果就是体系固化不完全，需要增加大量光引发剂和增强灯的功率，已经证明黑颜色是紫外所有颜色中最难被固化的。
对炭黑来说，对光的吸收与比表面积关系最大，所以目前特别设计用于uv体系的母体炭黑比表面积都是比较小的，然后通过处理降低对紫外的吸收。
如果用FW200, 又把它分散的很细，很难想象得到什么样的结果。

cosmosqh · 发表于 2009-4-7 09:16:22

谢谢以上高工们的建议，我用在UV木器上面，做底漆用。黑色色浆该怎么制作呢？

yahua · 发表于 2009-4-9 10:32:39

FW200吸油量太高，不适合做UV色浆啊。色浆的话，Mogul E还不错。Mogul L我也试验过，也可以。只是看你对黑度和成本的平衡了。

wyj7506 · 发表于 2009-4-9 10:40:39

anarchist说的没错，其实有很多品种可供选择，德固赛，卡博特，哥伦比亚等炭黑生产商均有对应的品种推荐。

清泥 · 发表于 2009-4-9 18:07:42

UV drying printing inks has been becoming more and more popular, especially because of the shorter drying times that the process offers. However, black UV curing printing inks can be a compromise since carbon black pigments strongly absorbs incident light both in the UV and visible range. So, the carbon black pigment used in a UV printing ink formulation must have the highest possible UV scattering ability. Therefore, carbon black pigments with a aggregate diameter between 100-130 nm would be appropriate. With the usage of low structured, oxidized furnace carbon black relatively short irradiation (drying) times are achieved. The low oil absorption has the effect of good flow characteristics and gloss, even in the relatively poorly wetting binders that can be employed in UV printing inks