1.Physical Properties：

(1)Low Density：Sinopec’s polypropylene resins generally have a low density, usually ranging from 0.89 g/cm³ to 0.92 g/cm³, making them one of the lightest among common plastics. This property is beneficial for reducing the weight of end products, which is particularly important in applications where weight is a critical factor, such as in the automotive and packaging industries35.

(2)High Melting Point：The resins typically have a relatively high melting point, around 164℃ to 170℃. This enables them to withstand relatively high temperatures without significant deformation, allowing for applications where heat resistance is required, such as in some food packaging that may undergo sterilization processes or in components exposed to elevated temperatures

(3)Mechanical Properties：

• • • Good Rigidity and Strength：They exhibit good rigidity and strength, providing structural integrity to the manufactured products. This makes them suitable for applications where mechanical stability is necessary, like in the production of plastic containers, furniture, and automotive parts235.
    • Impact Resistance：Depending on the specific grade and formulation, many of Sinopec’s polypropylene resins offer decent impact resistance. For example, copolymer grades often have enhanced impact strength compared to homopolymer grades, making them more suitable for applications where resistance to mechanical shocks is crucial, such as in the manufacturing of automotive bumpers and household appliances
    • Chemical Resistance：Sinopec’s polypropylene resins possess excellent chemical resistance, being relatively inert to a wide range of chemicals. They are resistant to acids, bases, and many common solvents, which makes them ideal for use in applications where exposure to various chemicals is possible, such as in chemical storage tanks, pipes, and laboratory equipment
    • Electrical Insulation Properties：These resins have good electrical insulation properties, making them suitable for use in the production of electrical and electronic components, such as wire coatings, cable insulators, and electrical appliance housings, where electrical insulation is of utmost importance234.