PP anti-freeze plastic sheet

Brif Intro

PP anti-freeze plastic sheet, also known as low-temperature PP plastic sheet or low-temperature resistant PP plastic sheet, is a specially modified polypropylene (PP) material with excellent low-temperature resistance and anti-freeze properties. It can maintain good mechanical properties and dimensional stability in low-temperature environments, so it is widely used in the field of frozen food packaging.

Specifications of PP plastic sheet

Advantages of PP anti-freeze plastic sheet

Compared with other frozen food packaging materials, PP anti-freeze plastic sheet has the following advantages:

High safety: PP anti-freeze plastic sheet does not contain any toxic and harmful substances, meets food safety standards, and can be safely used for frozen food packaging.

Good environmental protection: PP anti-freeze plastic sheet is a recyclable material that meets environmental protection requirements.

High cost performance: The price of PP anti-freeze plastic sheet is lower than other frozen food packaging materials, and it has a high cost performance.

Features of PP anti-freeze plastic sheet

Good low-temperature resistance: The glass transition temperature (Tg) of PP anti-freeze plastic sheet is low, and it can still maintain good rigidity and toughness below -40°C and will not become brittle.

Good barrier properties: PP anti-freeze plastic sheet has good barrier properties, which can effectively prevent frozen food from contacting with air, water vapor and other substances, and extend the shelf life of food.

High transparency: Some PP anti-freeze plastic sheets have high transparency, which can clearly show the appearance of frozen food and increase the attractiveness of the product.

Easy to process: PP anti-freeze plastic sheet is easy to process by injection molding, extrusion molding, blow molding and other processing methods, and can be processed into frozen product packaging boxes of various shapes.

Application of PP anti-freeze plastic sheet

PP anti-freeze plastic sheet is widely used in the field of frozen food packaging, mainly used to make the following types of packaging boxes:

• Frozen food box: used for packaging frozen meat, poultry, fish, seafood, etc.
• Frozen vegetable box: used for packaging frozen vegetables, fruits, etc.
• Frozen ice cream box: used for packaging frozen ice cream, popsicles, etc.
• Frozen beverage bottle: used for packaging frozen beverages.

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Production process of PP anti-freezing plastic sheet

The production process of PP anti-freezing plastic sheet mainly includes the following steps:

• Raw material preparation: Mix and stir PP resin, additives and other raw materials.
• Melting: Send the raw material mixture into the melting machine for melting.
• Extrusion: Extrude the molten PP material into a film through an extruder.
• Cooling: Cool and shape the extruded film.
• Winding: Wind the cooled and shaped film into a coil.

Substitutability of PP antifreeze plastic sheet

The main alternative materials to PP antifreeze plastic sheet include:

PET plastic sheet: PET plastic sheet also has good low temperature performance, but the price is higher than PP antifreeze plastic sheet.

PVC plastic sheet: The price of PVC plastic sheet is lower than that of PP antifreeze plastic sheet, but its low temperature resistance is not as good as that of PP antifreeze plastic sheet.

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