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[Chemical Knowledge]：PC/ABS. The production and manufacturing methods and processes of

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PC/ABS manufacturing method

PC/ABS is a widely used engineering plastics, with excellent physical properties and thermal stability, widely used in the field of chemical production raw materials. The following is the manufacturing method of PC/ABS:

1. raw materials to prepare

1. PC resin: select PC resin with high molecular weight, low viscosity and high fluidity, which is beneficial to improve the fluidity of PC/ABS blends.
2. ABS resin: Select ABS resin with good processing performance and high impact strength.
3. Additives: As required, antioxidants, heat stabilizers, ultraviolet absorbers, etc. can be added to improve the performance of PC/ABS.

2. blending process

1. ingredients: according to a certain proportion of PC resin, ABS resin and additives into the high-speed mixer, fully stirred.
2. Melt blending: The ingredients are added to the twin-screw extruder and melt blended to ensure that the PC and ABS are fully mixed and the additives are uniformly dispersed.
3. Extrusion pelletization: After melt blending, pelletization was performed by an extruder head to obtain pellets of the PC/ABS blend.

3. molding

1. Drying: PC/ABS pellets are dried in drying equipment to remove moisture and prevent bubbles during processing.
2. Injection molding: add the dried PC/ABS pellets into the injection molding machine, heat and melt, inject into the mold, cool and set, and demould to obtain the finished product.

4. post-treatment

according to the need, the finished product can be heat treatment, surface treatment and other processes to improve the dimensional stability of the product, weather resistance and other properties.

In short, the manufacturing method of PC/ABS includes the steps of raw material preparation, blending process, molding processing and post-processing. In the manufacturing process, it is necessary to strictly control the various process parameters to ensure product quality. At the same time, according to different application scenarios, the formula and process can be adjusted and optimized to meet the needs of PC/ABS performance in different fields.

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