In recent years, the masterbatch industry has developed vigorously, especially black masterbatch, defoaming masterbatch and filler masterbatch. According to the survey, the main production bases are currently concentrated in China, India and Vietnam, and the import markets are mainly concentrated in African countries such as Algeria/South Africa/Uganda/Kenya/Egypt and Southeast Asian countries such as India/Vietnam/Indonesia.
Today,we mainly want to share the black masterbatch used in the plastics production.
The main function of black masterbatch is to color plastic products and dye them into black. Black masterbatch plays two major roles in plastic products, making the color of the pigment more uniform and maintaining the chemical stability of the pigment.
1. The black masterbatch makes the distribution of the pigment in the product more even. The special color masterbatch is added in the production of the product to refine the pigment, thereby improving the uniformity of the distribution of the pigment in the product. The good matching between the special masterbatch and the product, after heating and melting, the color particles can be evenly dispersed in each part of the product.
2. The black masterbatch can effectively maintain the chemical stability of the pigment. In the process of storage and direct use, the pigment will inevitably come into contact with air. In this case, the phenomenon of water absorption and oxidation of the pigment will inevitably occur. But if it is made into a color masterbatch, there is a resin component to seat its carrier, and the pigment is well isolated from the air and the atmosphere during use and storage, thereby ensuring the quality of the pigment in long-term storage.
What are the effects of black masterbatch in the application of plastic products?
The black masterbatch has good compatibility with plastic products, so the black masterbatch can be stored in the product for a long time and exert its due effect. However, if the black masterbatch exceeds its compatibility range, it will have a negative impact on plastic products. For example, when a large number of fillers are used, the viscosity of the system will increase, the molding process will be difficult, and the mechanical properties will decrease; when the amount of flame retardant is large, the mechanical properties of the material will also be significantly reduced; the addition of liquid additives will cause the heat resistance of the material to decrease; Most additives will greatly reduce the transparency of transparent plastics or completely lose transparency.
When using black masterbatch in plastic products, it should also be noted that some additives have dual or multiple functions. For example, carbon black is not only a colorant, but also has light shielding and anti-oxidation effects; plasticizers not only soften the product, but also Moreover, it can reduce the heating temperature and improve the fluidity of the melt, and some of them also have a combustion-supporting effect; some metal soap stabilizers are lubricants themselves. For these auxiliaries, comprehensive consideration should be given to the formulation, and the dosage should be adjusted or the formulation should be simplified.
