Polyethylene foam cotton, also known as EPE pearl cotton, is a non-crosslinked closed-cell structure and a new type of environmentally friendly packaging material. It is composed of numerous independent bubbles formed by physical foaming of low-density polyethylene. It overcomes the shortcomings of common foam materials, such as fragility, deformation, and poor resilience. It boasts many advantages, including waterproof and moisture-proof, shockproof, soundproof, thermal insulation, excellent plasticity, high tensile strength, recyclability, environmental friendliness, and strong impact resistance, as well as excellent chemical resistance. It is an ideal substitute for traditional packaging materials.