PEvaahtomateriaalit

PEvaahtomateriaalit refer to foamed polyethylene materials. Polyethylene, a common thermoplastic polymer, is transformed into a foam by introducing gas bubbles into its structure. This process can be achieved through various methods, including physical blowing agents (like hydrocarbons or nitrogen) or chemical blowing agents (which decompose to release gas at elevated temperatures). The resulting foamed polyethylene exhibits a cellular structure, with the size, distribution, and connectivity of these cells influencing the material's properties.

Key characteristics of PEvaahtomateriaalit include their low density, excellent thermal and acoustic insulation capabilities, and good cushioning properties. They are also resistant to moisture, chemicals, and impact. The flexibility and compressibility of these foams can be tailored by adjusting the blowing agent, processing temperature, and polyethylene density. Depending on the manufacturing process, PEvaahtomateriaalit can range from closed-cell foams, where cells are individually enclosed, to open-cell foams, where cells are interconnected.

These versatile materials find widespread applications across numerous industries. They are commonly used in packaging for protective cushioning of fragile goods, in the automotive sector for interior components and sound dampening, and in construction for insulation and sealing. Other uses include sports equipment, flotation devices, and medical devices, owing to their lightweight, shock-absorbing, and buoyant nature.