Now pigment carbon black is widely used in the market, especially in oil, ink, paint, plastic and other products, it can play a very good coloring effect, and it is the preferred carbon black pigment for many manufacturers. However, when we use carbon black, if we cannot solve the problem of pigment carbon black dispersion, it will be difficult to produce ideal finished products. So what exactly affect the use of pigment carbon black and the dispersion methods of pigment anti-black? This article will explain to you through experiments.
Increasing the grinding times of pigment carbon black can solve the dispersion problem of pigment carbon black
We compared the grinding times respectively, and found that the repeatability of grinding 6 times and 8 times was better, and the grinding of 4 times was uneven and poor in repeatability. In this way, 6 and 8 grinding times are ideal. However, it is time-consuming to grind 8 times, so the number of times of grinding will affect the use effect of carbon black. Too few times will affect the quality of finished products, and too many times will affect the production time. If the grinding is compared with the standard sample made into ink and left for about 30 minutes and then the sample is made into ink, the result is lower. The tinting strength of carbon black is the main parameter to investigate the performance of pigment carbon black. We mainly start with the following aspects in testing its tinting ability: systematic error, accidental error, operating error and so on.
Adding an appropriate amount of pigment carbon black dispersant can solve the dispersion problem of pigment carbon black
Pigment carbon black dispersants can promote the dispersion of pigment carbon black. There are many types of dispersants at home and abroad. You can buy and add some dispersants according to your own situation. You may not believe it, but limited carbon black manufacturers will also add dispersants when producing pigment carbon black, which can improve the dispersibility of carbon black.
Choosing highly dispersed pigment carbon black can solve the dispersion problem of pigment carbon black
We compared high-pigment carbon black with low-dispersion carbon black, and found that the product produced by high-pigment carbon black is closer to the ideal under the same grinding times without adding dispersant, while the low-dispersion carbon black is quite different up. However, the price of high-dispersion carbon black will be relatively higher, which will increase the cost, and low-dispersion carbon black will affect the quality of finished products.
The above content is found through the means of experimentation. The method of dispersing the pigment carbon black. If there are friends who don’t know these methods, please write them down so that they can be applied later.