标题: 调色基础漆增稠体系的设计 [打印本页] 作者: amateur 时间: 2009-5-27 18:47 标题: 调色基础漆增稠体系的设计 设计的调色基础漆一般都会遇到加入色浆后ku黏度掉的厉害的情况，一般最少都是在十几ku，尤其是在色浆量在超过10%后更是明显，有的甚至下降二，三十个ku，那有没有什么办法控制其黏度较为稳定呢作者: zhongxiaoqiu79 时间: 2009-5-28 07:04
这就是增稠剂各类的选择了，用比如疏水改性HEUR就对色浆中的溶剂，表面活剂相当敏感，易解吸，引起粘度下降。作者: 大连愚翁 时间: 2009-5-28 08:45
色浆中的表面活性剂对碱溶胀或缔合型增稠剂影响较大，对纤维素影响相对小些（缔合型纤维素例外），由于添加色浆，建议多补充些提高低剪粘度的增稠剂，以防止产生沉淀。作者: amateur 时间: 2009-5-29 18:40
工厂调色一般都是外墙，外墙涂料HEC用量不能太高，否则耐水性不好。请问有没有专门的调色基础漆用增稠剂？作者: flydragon76 时间: 2009-5-29 21:44
某些增稠剂对色浆降粘不敏感，也是PU类的，Cogins 有推荐的、作者: william 时间: 2009-6-1 14:01
推荐一篇关于如何减少深色基础漆调色时粘度降低的文章。
Two trends are evident in architectural
paints today. Waterborne, or
latex, paints continue to grow in
use, and today’s homes are increasingly
being painted with deep,
vibrant colors, both inside and out. While experience
has shown that the best overall balance of
rheology in waterborne coatings is achieved by using
non-ionic associative rheology modifiers, when such
coatings are tinted with high levels of colorants they
often exhibit a significant decrease in viscosity. This
decreased viscosity can manifest itself in a number of
ways, including low sag resistance, poor brush loading
and a “thin” appearance in the can. Although a
number of approaches to formulating around these
issues exist, there continues to be a need for viscositystable
rheology modifiers. A new development in
HEUR thickening offers significant improvements in
these performance parameters.
。。。。
Conclusion
The new technology for non-ionic thickeners described
above acts through a new mechanism to provide three
desired properties to tinted paints: 1) improved resistance
to viscosity loss, 2) improved sag resistance, and 3) preservation
of excellent flow.作者: william 时间: 2009-6-1 14:05
另有两个公司的相应产品作者: dianxingji 时间: 2009-6-5 14:54
能来电中文的不？！！！！当初没努力学，后悔呀！！！！！！作者: 色女 时间: 2009-6-11 21:34
6楼的真是专家呀，
好文章。8#dianxingji作者: quyun 时间: 2010-5-28 16:17
是呀。六楼的乳胶漆业真专家呀！avoid viscosity loss on tinting.pdf不能下载。
毎遇大师的文字，必细细研读