Good Thermal Stability PP sheet
2025-08-15 14:58PP Thermoformed Sheet Introduction
1. Material Properties
PP (Polypropylene) is a widely used thermoplastic polymer in the plastics industry. PP thermoformed sheets inherit a series of excellent properties from the PP resin.
1.1 Lightweight
PP has a relatively low density, typically around 0.9 - 0.91 g/cm³, which makes PP thermoformed sheets significantly lighter than many other plastic sheets such as those made from ABS or PC. This lightweight characteristic not only reduces transportation costs but also makes the final products more convenient to handle and use, especially in applications like food packaging and consumer goods packaging.
1.2 High Chemical Resistance
PP thermoformed sheets exhibit outstanding resistance to a wide range of chemicals. They are highly resistant to acids, alkalis, and many organic solvents. This property ensures that the sheets can be used for packaging products with various chemical compositions without being corroded or deteriorated. For example, in the packaging of cleaning agents or certain industrial chemicals, the chemical resistance of PP thermoformed sheets plays a crucial role in maintaining the integrity of the packaging and the quality of the products inside.
1.3 Good Thermal Stability
PP has a relatively high melting point, usually around 160 - 170 °C. PP thermoformed sheets can withstand moderate temperatures without significant deformation. This makes them suitable for applications where the products may be exposed to heat, such as food packaging for hot - filled products or in some medical packaging scenarios that require heat sterilization.
1.4 Non - Toxic and Hygienic
PP is non - toxic, which meets the strict requirements of food and medical packaging in terms of safety. PP thermoformed sheets can directly contact food and medical products without releasing harmful substances, ensuring the safety and quality of the packaged items. This property has led to its extensive use in food containers, medical blister packs, and other applications related to human health.
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