What are the precautions for adding talcum powder to plastics?
Surface modification of talcum powder is required
The purpose is to improve the compatibility between talcum powder and plastic raw materials and improve the application effect. Different surface treatment agents should be selected for different plastics.
Dispersibility of talcum powder in plastic raw materials
Under the same formula, the dispersibility of talcum powder in plastic raw materials has a great influence on the final physical and chemical properties of the modified materials, and should be strictly controlled during the production process. The main factors affecting the dispersibility of talcum powder in plastic raw materials are formula, temperature, output, process, etc. In addition, when the amount of talcum powder added is large, the method of adding in steps can be adopted to achieve a good dispersion effect
For different plastics, different specifications of talcum powder should be selected
This is very particular. If you choose it wrong, it may be counterproductive, because different plastics, different products, and different use conditions have different requirements for raw materials, so different choices must be made to achieve the ideal effect.