Another grade of PP is the random copolymer grade. It is a semi-crystalline material that has good clarity and a lower melting point compared to the homopolymer grade. Random copolymer PP is used in applications such as packaging films, bags, and medical equipment. It is also suitable for molding applications that require good flowability.

The impact copolymer grade of PP is a tough and ductile material that has a better impact resistance compared to the homopolymer and random copolymer grades. It is used in applications such as bumpers, battery cases, and toys. The impact copolymer grade also has good chemical resistance and is suitable for use in harsh environments.

Finally, the high-melt-strength grade of PP is a material that is used in hot-fill applications such as bottles and containers. It has a higher molecular weight compared to other grades of PP, which gives it a higher melt strength. This property allows it to withstand high temperatures without deforming or losing its shape.

In conclusion, the different grades of PP offer a wide range of properties and are suitable for various applications. From the high-density homopolymer grade to the tough and ductile impact copolymer grade, each grade of PP has unique benefits. As the demand for plastic materials continues to grow, it is important to understand the different properties of PP grades to choose the right one for the intended application

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Polypropylene Plastic Raw Material(PP)