Open cell意思

"Open cell" is a term used in the context of foam materials, particularly in reference to polyurethane foam. It refers to the structure of the foam, where the cells that make up the foam are open and interconnected, allowing air to flow through the material.

In contrast, "closed cell" foam has cells that are sealed and not interconnected, meaning that air cannot pass through the foam.

Open cell foam is often used for its cushioning and insulating properties, as well as its ability to absorb sound. It is commonly used in applications such as upholstery, bedding, and acoustic insulation.

Closed cell foam, on the other hand, is prized for its durability, water resistance, and ability to provide a barrier against moisture and air. It is often used in applications such as insulation for buildings, flotation devices, and protective padding.