Polyuretaanivaahtotäytteet

Polyuretaanivaahtotäytteet, also known as polyurethane foam fillers, are insulating materials made from polyurethane polymers combined with various additives. The foam is typically produced by reacting diisocyanates with polyols, often in the presence of blowing agents that create a cellular structure. The resulting product can be rigid or flexible, depending on the ratio of reactants and the type of blowing agent used.

These fillings are widely used in construction and automotive industries for thermal and acoustic insulation. In building, they are applied as spray foam or sheet panels to reduce heat transfer across walls, roofs, and foundations, contributing to energy efficiency. In automotive manufacturing, polyurethane foam is used to line interiors, dampen vibration, and provide cushioning for seats. Their excellent resistance to moisture and chemical degradation makes them suitable for environments with high humidity or exposure to cleaning agents.

Key advantages of polyuretaanivaahtotäytteet include low thermal conductivity, high compressive strength, and the ability to conform to irregular shapes. However, the production of polyurethane foams involves hazardous chemicals, and the disposal of used foam can raise environmental concerns. Recent developments focus on bio‑based polyols and non‑ozone‑depleting blowing agents to reduce the ecological footprint. Regulatory standards, such as the European Union’s REACH and EN 520 for thermal insulation, guide the safe use and labeling of these materials.