Foam packaging, as commonly referred to, primarily consists of expandable polystyrene (EPS) material that is molded and heat-processed to create packaging products commonly known as "foam." Expandable polystyrene is an ideal packaging material, which can be processed into various shapes and thicknesses as needed through molding techniques. Under high loads, the material achieves shock absorption and vibration reduction through deformation, energy absorption, and energy decomposition, while also providing thermal insulation and heat preservation. EPS packaging products are typically white, but can be produced in colors as required.
Primary Usage Features
1. Lightweight. EPS packaging products replace part of the space with gas, containing 30 to 60 million separate sealed air bubbles per cubic decimeter. Therefore, it is several to dozens of times larger in volume than plastic.
2. Possesses the ability to absorb impact loads. When EPS packaging products are subjected to impact loads, the gas within the foam is depleted and dissipated through turbulent flow and compression, thereby gradually terminating the impact load with a smaller negative acceleration. This results in good shock absorption properties.
