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[Chemical Knowledge]：The difference between polypropylene powder and pellets

Read： 614 Time：15months ago Source：Transform the World with Simplicity

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, use and characteristics. The difference between the production process of

1.
polypropylene powder is obtained by crushing and sieving polypropylene blocks, and the particles are fine and powdery. Polypropylene pellets, on the other hand, are formed by adding molten polypropylene into a pelletizer, cooling, cutting and other processes, with regular shapes and larger particles. The difference between

2. uses
polypropylene powder has good fluidity due to its fine particles and large surface area, and is usually used in injection molding, extrusion, blow molding and other processes. They can be deployed into different colors of plastic products, 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 particles, and are used to make containers and barrel products. The difference of

3. characteristics
that polypropylene powder has good high temperature resistance, 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 higher density and mechanical strength and are suitable for the production of products with higher strength requirements. In addition, polypropylene pellets also have excellent chemical stability and weather resistance, and can be used for a long time in outdoor environments without embrittlement and aging.

To sum up, there are some differences between polypropylene powder and pellets in terms of production process, use and characteristics. According to the actual demand to choose the appropriate form of polypropylene material, can effectively improve the production efficiency and product quality.

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