In the chemical industry, talc is a relatively commonly used product. So, what should I pay attention to during use?
1. The talc powder must be surface modified. The purpose is to improve the compatibility of talcum powder and plastic raw materials and improve the use effect.
2. Dispersibility of talcum powder in plastic raw materials. Under the same formula, the degree of dispersion of talc in the plastic raw materials has a great influence on the final physical and chemical properties of the modified material, and should be strictly controlled during the production process.
The main factors affecting the dispersibility of talc in plastic raw materials are formula, temperature, output and process flow. In addition, when the amount of talc is large, a method of gradually adding talc can be used to obtain a good dispersion effect.
3. For different plastics, different specifications of talc should be selected. This is very special. If you do not make a good choice, it may be counterproductive. Because different plastics, different products and different conditions of use have different requirements for raw materials, different choices must be made to achieve the desired effect.
The above is the main content of the problems that need to be paid attention to during the use of talc.
