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Polypropylene is an important raw material widely used in the field of plastic manufacturing, and polypropylene powder and pellets are the manifestations of polypropylene in different forms. Although they are all made of polypropylene, there are some differences in production process, usage, and characteristics

1、 The difference in production process 

Polypropylene powder is obtained by processing polypropylene blocks through processes such as crushing and screening, with finer particles and a powdery appearance. Polypropylene pellets, on the other hand, are formed by adding molten polypropylene to a granulator and undergoing processes such as cooling and cutting. They have a regular shape and larger particles

2、 Differences in uses 

Polypropylene powder has good flowability due to its fine particles and large surface area, and is commonly used in processes such as injection molding, extrusion, and blow molding. They can be blended into plastic products of different colors according to needs, and are widely used in furniture, daily necessities, packaging materials and other fields. Polypropylene pellets are suitable for injection molding, blow molding, and other processes due to their large size, and are used to make containers, barrels, and other products

3、 Differences in characteristics 

Polypropylene powder has good high-temperature resistance, is easy to melt during processing, and has good fluidity and formability. Their materials have good flexibility, strong toughness, and good acid and alkali resistance. Polypropylene pellets, on the other hand, have high density and mechanical strength, making them suitable for the production of products with high strength requirements. In addition, polypropylene pellets also have excellent chemical stability and weather resistance, which can be used for a long time in outdoor environments without embrittlement or aging

In summary, there are some differences between polypropylene powder and granular materials in terms of production process, usage, and characteristics. Choosing the appropriate form of polypropylene material according to actual needs can effectively improve production efficiency and product quality.