In the field of chemical industry, talc is a more commonly used product, so what do you need to pay attention to in the process of use?
1, talc powder must be surface modified。The purpose is to improve the compatibility of talc and plastic raw materials and improve the use effect。
2, the dispersion of talc in plastic raw materials。Under the same formula, the dispersion of talc in plastic raw materials has a great impact on the final physical and chemical properties of the modified material, and should be strictly controlled in the production process。
The main factors affecting the dispersion of talc in plastic raw materials are formulation, temperature, yield and process flow。In addition, when the amount of talc is large, the method of gradually adding talc can be used to obtain a good dispersion effect。
3, for different plastics, should choose different specifications of talc。This is very special。If you don't make good choices, it can backfire。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 what problems need to be paid attention to in the use of talc powder。
