White carbon black, a popular product, must be familiar to everyone. Its product value is obvious to all. Moreover, its application range is quite wide. Last time, our Xiaobian of Dongying Xinda Chemical told you about its application in rubber. Today, we will tell you about the application of white carbon black in leather coating. Let's have a look.


The leather finishing agent is white carbon black. There are two kinds of high light (bright light) and matte light. Usually, the gloss required is adjusted according to a certain proportion of bright light and matte light. The gas phase white carbon black is used as a matting powder for the matte finishing agent. Because the deposited matte powder is more serious, it simply presents the deposition appearance in the polyurethane system. The Degussa vapor phase matting powder ts-100, tt-600, or Japanese tokyama fm-14 can be used alone. The matting effect and the deposition appearance can be treated, but the cost is high. At this time, the German Wacker N20 (hydrophilic, 200 m2 / g, uniform particle size of 12 nm) can achieve the extinction effect and reduce the cost together. N20 also plays the role of anti sedimentation. More importantly, N20 will not reduce the brilliance and fullness. Wacker N20 re leather coating has been widely used in the industry. Leather coating is mainly distributed in Jiangsu, Zhejiang and Fujian provinces.


The so-called white carbon black extinction, also known as matte, refers to the physical uniform dispersion of nano particles in the system. When the light is expired and continuously reflected by these small particles, zinc stearate will show the so-called total reflection, so that the light cannot be emitted. In this way, the appearance will become dark and dull.


The effect of fumed silica depends on the strength of dispersion to a large extent, and at least high-speed dispersion machine is required. To achieve the best dispersing effect, the rotor stator dispersing or ball machine, three roller machine dispersing and ultrasonic dispersing equipment can be selected.


The best selection of the slack method and slack equipment depends on the consistency of the system. Sometimes, we advocate that some liquids or some formula materials should be used to disperse all the fumed silica, and then the remaining liquids and other formula materials should be used to regulate the content of fumed silica to reach the formula demand. In principle, fumed silica of white carbon black is added with the reduction of the basic particle size. However, with the addition of particle fineness, higher shear force is required to achieve its thickening effect.

There are still many applications of white carbon black, and the development prospect is broad. If you need it, you are welcome to find our small editor of IOTA Silicone Oil LTD. for consultation and purchase.