What is a PP box?

Release date:

2024-09-25

A PP box is a type of container made from polypropylene (PP) material.

PP crates are containers made from polypropylene (PP), characterized by their lightweight, high strength, non-toxicity and environmental friendliness, as well as resistance to water, moisture, acid–alkali corrosion, and oil contamination. They also offer excellent recyclability and suitability for secondary processing.

PP crates are widely used in diverse logistics and warehousing settings. As a new, environmentally friendly packaging material, they can be molded into various forms, such as plastic turnover boxes, plastic fruit and vegetable crates, and plastic mesh baskets, and can also serve as plastic pallets, automotive floor mats, and interior trim panels. Containers made from this material typically exhibit high impact resistance, meeting the demands of a wide range of application environments.

The types of PP boxes include, but are not limited to:

Plastic turnover boxes: used for the handling and circulation of goods in logistics and warehousing.
Anti-static plastic turnover box: Particularly suitable for applications requiring electrostatic discharge protection, such as the transportation and storage of electronic components.
Hollow‑board reusable crates: These crates are made from hollow board—a lightweight, high‑strength material—and offer waterproof and moisture‑resistant properties, as well as resistance to acid and alkali corrosion.
During the production of PP crates, advanced standard extrusion lines for PP and PE hollow sheets enable the manufacture of hollow panels with thicknesses of up to 12 mm, which can then be used to produce plastic pallet boxes and containerized cargo packaging in a wide range of specifications. These containers not only exhibit excellent physical properties but also meet environmental standards thanks to their recyclability, making them widely adopted in many technologically advanced countries around the world.

When selecting PP containers, factors to consider include, but are not limited to, the material’s shrinkage rate, flowability, crystallinity, and the characteristics of thermally sensitive and hydrolytically unstable plastics, as well as issues such as stress cracking and melt fracture. It is essential to ensure that the chosen material can withstand the specific service environment and conditions, thereby guaranteeing the container’s performance and durability.

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