保定市分散剂厂

颜料分散剂对涂料性能的具体影响介绍

Introduction of pigment dispersant to paint performance

      这是衡量涂膜特性的一个指标，光泽越高，反射越强。

This is an indicator of the properties of film. The higher the gloss, the stronger the reflection.

      对优质涂料的光泽来说，，颗粒不能大于5微米的，最大3微米。油墨不能超过1微米。涂料中的大颗粒，要么没法有效分散，要么絮凝，或者在配制过程中发生刺激起晶。

For the gloss of high quality coatings, the particles can not be larger than 5 microns and the maximum is 3 microns. Ink can't exceed 1 microns. The large particles in the coating can not be effectively dispersed or flocculated, or the stimulation occurs during the preparation process.

      聚合物分散剂也可减少由于絮凝而形成的大颗粒，改善光泽。

Polymer dispersant can also reduce the large particles formed by flocculation and improve luster.

      透明

It is transparent

      这是涂膜的一个特性，透明性越高，越容易看到底层。遮盖力越高，对底层遮盖力越强。

This is a characteristic of the coating. The higher the transparency, the easier it is to see the bottom. The higher the covering force, the stronger the cover force to the bottom.

       光在表面反射和通过的数量决定涂料的遮盖力或透明性。颜料种类及分散程度对此有影响。由于折射率和粒子大小影响，遮盖性颜料对反射光有更大影响。

The amount of light reflected and passed on the surface determines the hiding power or transparency of the coating. The type of pigment and the degree of dispersion have an effect on it. Due to the influence of refractive index and particle size, covering pigment has greater influence on reflected light.

       聚合物分散剂通过影响颜料粒径分布（更均匀更窄）来提高透明度。对钛白粉，高折射率和大颗粒可以有效地反射和折射各种波长的光。聚合物分散剂的添加可以提高表面积（减少团聚体，降低粒径），可以进一步提高遮盖力。对于透明颜料，聚合物分散剂改善粒径分布让更多光透过（增加透明性）。

Polymer dispersants enhance transparency by influencing the particle size distribution (more uniform and narrower). For titanium dioxide, high refractive index and large particles can effectively reflect and refract various wavelengths of light. The addition of polymer dispersant can increase the surface area (reduce aggregate and reduce particle size), and further enhance the covering power. For transparent pigments, polymer dispersants improve particle size distribution and allow more light to pass through.

      相容

Compatibility

      相容性之所以重要,是因为良好的相容性可以使涂料制造商生产用于多种不同类别树脂产品的分散体系。

Compatibility is important because good compatibility enables paint manufacturers to produce dispersions for many different types of resin products.

      聚合物分散剂可以提高颜料浓度，不仅增加产量，而且减少从研磨色浆直到最终产品中潜在的介质不相容性问题。所以特别是使用高相容性树脂的条件下，聚合物分散剂扩大了基础涂料的使用范围。这对混合着色涂料生产非常重要。

The polymer dispersing agent can increase the pigment concentration, not only increase the output, but also reduce the potential incompatibility of the medium from the grinding pulp to the final product. Therefore, especially with the use of high compatibility resins, polymer dispersants expand the scope of application of basic coatings. This is very important for the production of mixed coloring coatings.

       流动/流平

Flow / flow leveling

      流平性是涂料在特定表面扩散的能力。涂料表面缺陷通常由表面张力造成，而且发生相对较快。装饰涂料的刷痕通常也是由流平性不足造成的。

The leveling property is the ability of the coating to diffuse on a specific surface. Surface defects are usually caused by surface tension and relatively fast. The brush marks of decorative coatings are usually caused by insufficient leveling.

      理想的流平行为可以用牛顿力学来解释。但是颜料引入体系后，就会发生变化。这是因为颗粒受化学键和物理相互作用影响，非常容易产生触变性和假塑性。

The ideal leveling behavior can be explained by Newtonian mechanics. But when the pigment is introduced into the system, it will change. This is because particles are susceptible to thixotropy and pseudoplasticity due to chemical bonds and physical interactions.

       由于颜料颗粒在聚合物分散剂作用下更加稳定，流平性增加，所以可以提高牛顿流体特性。对流平性有好处。

Because the pigment particles are more stable under the action of polymer dispersants and increase in levelling, the Newton fluid characteristics can be improved. Convective flatness is good.

      产量

Yield

      产量指一个工序生产的涂料和油墨数量。分散剂使颜料浓度增加，可以提高涂料产量。

The output refers to the quantity of paints and inks produced by a process. The dispersant can increase the pigment concentration and increase the coating yield.

      适当添加聚合物分散剂，可以降低粘度，增加研磨色浆的颜料含量，从而产量提高。

Appropriate addition of polymer dispersant can reduce viscosity and increase the pigment content of the grinding paste so as to increase the yield.

      在固定时间内，由于可以分散更多的颜料，这样用相同重量的研磨色浆就可以生产更多产品。

In a fixed time, because more pigment can be dispersed, more products can be produced with the same weight of the grinding paste.

      明显加快分散速度也可以提高产量。产量提高则机器磨损减少，能耗降低，尤其是降低每公斤最终产品的劳动力成本和固定成本。

The speed of dispersal can also increase production. The increase in production will reduce the wear and tear of the machine and reduce the energy consumption, especially the labor cost and fixed cost of the final product per kilogram.

      着色强度

Coloring strength

      涂料着色强度表示色彩色相在应用表面的强烈程度。

The coloring strength of the pigment indicates the intensity of the color hue applied to the surface.

      提高着色强度涂料就会看起来更加明亮，对顾客更有吸引力。 

To enhance the coloring strength, the paint will look brighter and more attractive to customers. It

      通过平衡相互对立的各种因素，可以创造最优研磨条件。降低颜料的平均粒径可以提高着色强度。

By balancing various opposing factors, we can create the best grinding conditions. Reducing the average size of pigment can improve the coloring strength.

      提高研磨色浆中颜料含量会增加粒子的相互碰撞，提高颜料的破碎率，但是也增加了粘度，降低了研磨的动能，使磨料小球或珠子对颜料的破碎能力下降。

The increase of the pigment content in the grinding pulp increases the collision of the particles and increases the crushing rate of the pigment, but also increases the viscosity, reduces the kinetic energy of the grinding, and reduces the crushing capacity of the ball or beads.

      使用聚合物分散剂可以改变这种变化。使用分散剂可以研磨更高颜料浓度，使粒子破碎更加迅速，同时防止研磨过程中的粘度升高。最终，分散剂使更细小的粒子碰撞稳定性增加，不絮凝，从而充分发挥其内在的着色强度。

The use of polymer dispersants can alter this change. Dispersant can be used to grind higher pigment concentration, make particles break faster and prevent viscosity increase during grinding. Finally, dispersants increase the impact stability of smaller particles and do not flocculate, thus giving full play to their intrinsic coloring strength.

      挥发性有机物VOC

Volatile organic compounds VOC

      VOC或者叫挥发性有机物，是指体系中挥发到空气中的有机溶剂。VOC越低，对空气的潜在污染越小。这就要求提高涂料的固含量。

VOC, or volatile organic compounds, refers to the organic solvent that evaporated into the air in the system. The lower the VOC, the smaller the potential pollution to the air. This requires the improvement of the solid content of the coating.

      涂料的粘度是由溶剂、树脂和颜料决定的。普通的低固含量涂料，颜料对粘度的影响没有树脂溶剂的影响大。然而，高固含量涂料溶剂较少，树脂是低粘度的，这样一来，颜料的影响就非常明显了。

The viscosity of coatings is determined by solvents, resins and pigments. For ordinary low solid content paints, the effect of pigment on viscosity is not influenced by resin solvent. However, the high solid content coating solvent is less, the resin is low viscosity, so that the effect of pigment is very obvious.

      聚合物分散剂通过降低颗粒之间的相互吸引力，显著降低颜料对粘度的影响。所以，对高固含量涂料，加入分散剂将大大降低粘度，或者说，在粘度相同的条件下，将使用更少的溶剂。

Polymer dispersants significantly reduce the effect of pigment on viscosity by reducing the attraction between particles. Therefore, the addition of dispersant to high solid content coatings will greatly reduce the viscosity, or, if the viscosity is the same, it will use less solvent.