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[Chemical Knowledge]：The difference between injection grade SBS and extrusion grade SBS

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Injection molding grade SBS and extrusion grade SBS are two common polymer materials, which are widely used in industrial production. In the actual production process, many people tend to be confused about these two materials and do not know the difference between them. This article will delve into the difference between injection molding grade SBS and extrusion grade SBS and its application to solve your doubts.

First of all, let's take a look at the definition and characteristics of injection molding grade SBS and extrusion grade SBS. Injection grade SBS refers to the SBS material used in the injection molding process. It has good fluidity and molding performance and is suitable for the manufacture of plastic injection molded products. The extrusion grade SBS refers to the SBS material used in the extrusion process, which is characterized by good extrusion performance and wear resistance, suitable for the production of plastic extrusion products. It can be seen that there are obvious differences in the process between injection grade SBS and extrusion grade SBS.

Secondly, there are some differences in chemical structure between injection grade SBS and extrusion grade SBS. Injection molding grade SBS usually has high flexibility and toughness, can maintain good deformation performance in the injection molding process, and is suitable for manufacturing some products with high requirements for bending deformation. Extrusion grade SBS usually has high hardness and wear resistance, can maintain good stability in the extrusion process, and is suitable for manufacturing some products with high requirements for strength and wear resistance. This also makes the two materials have different fields and uses in practical applications.

Finally, we look at the application areas of injection-grade SBS and extrusion-grade SBS. Due to its different characteristics and process requirements, injection molding grade SBS and extrusion grade SBS have their own fields and uses in practical applications. Injection molding grade SBS is commonly used in the manufacture of plastic soles, plastic toys, plastic packaging and other products, its excellent deformation performance and good molding performance makes the product has good flexibility and toughness. The extrusion grade SBS is often used in the manufacture of plastic pipes, plastic plates, plastic profiles and other products, its excellent wear resistance and stability makes the product has good hardness and durability.

To sum up, although there are some differences in the material itself and the application process, both injection molding grade SBS and extrusion grade SBS have important application value in the field of industrial production. Understanding its differences and application characteristics will help us choose suitable materials in actual production and improve product quality and performance. I hope this article can bring you some help, more knowledge about SBS materials, welcome to our follow-up updates.

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