| 分散剂作用 |
| 添加时间：2019/8/21 10:43:18 浏览次数： |
| 作用 Effect 分散剂的作用是使用润湿分散剂减少完成分散过程所需要的时间和能量，稳定所分散的颜料分散体，改性颜料粒子表面性质，调整颜料粒子的运动性 [2] 。具体体现在以下几个方面： The function of dispersant is to use wetting dispersant to reduce the time and energy needed to complete the dispersion process, stabilize the dispersed pigment dispersion, modify the surface properties of the pigment particles, and adjust the movement of the pigment particles. It is embodied in the following aspects: 1、提升光泽，增加流平效果光泽实际最主要取决涂料表面对光的散射(即一定的平整度即可。当然需检测仪器决定是否够平整,不但考虑原生粒子数目,形状,并考虑他们的结合方式),当粒子粒径小于入射光1/2(这个数值不确定）时,表现为折射光，光泽不会再提高，同理遮盖力依靠散射提供主要遮盖力的遮盖力也不会增加（除炭黑主要靠吸收光，有机颜料忘了）。注：该入射光是指可见光的范围流平说不好；但注意粒子原生数目减少，是减少其结构黏度，但比表面的增加会使自由树脂的数量减少，是否有平衡点说不好，但一般粉末涂料流平并不是越细越好。 1. To improve the gloss and increase the leveling effect, the most important factor is the scattering of light from the coating surface (i.e. a certain smoothness). Of course, it is necessary to determine whether the instrument is flat enough, not only considering the number and shape of primary particles, but also considering their combination mode. When the particle size is less than 1/2 of the incident light (the value is uncertain), it is reflected as refractive light, and the gloss will not be improved. Similarly, the covering power provided by scattering will not increase.（ The main way to remove carbon black is to absorb light. Organic pigments are forgotten. Note: The incident light refers to the range leveling of visible light is not good, but attention should be paid to the reduction of the original number of particles, which is to reduce the structural viscosity, but the increase of specific surface will reduce the number of free resins, whether there is a balance point is not good, but the general powder coating leveling is not the finer the better. 2、防止浮色发花。 2. Prevent float and blossom. 3、提高着色力注意着色力在自动调色系统中并非越高越好。 3. Improving the attention of shading is not the better in the automatic shading system. 4、降低粘度，增加颜料载入量。 4. Reduce the viscosity and increase the amount of pigments loaded. |
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