urethanové

Urethanové, often referred to as polyurethane, is a versatile polymer characterized by the presence of urethane linkages in its molecular backbone. This class of polymers is formed through a chemical reaction between an isocyanate and a polyol. The specific properties of the resulting urethane material can be widely tailored by varying the types and ratios of the isocyanate and polyol used, as well as through the incorporation of additives.

Urethanes exist in a diverse range of physical forms, including flexible and rigid foams, elastomers, coatings, adhesives, and sealants. Flexible polyurethane foams are commonly found in furniture, bedding, and automotive seating due to their cushioning and shock-absorbing qualities. Rigid polyurethane foams serve as excellent thermal insulation in construction and refrigeration applications. Polyurethane elastomers are known for their durability and abrasion resistance, making them suitable for applications like wheels, rollers, and shoe soles. Urethane-based coatings offer protection and aesthetic appeal to surfaces such as wood, metal, and concrete. Adhesives and sealants utilizing urethane technology provide strong and flexible bonding solutions. The widespread application of urethane stems from its advantageous combination of properties, such as high tensile strength, resistance to wear and tear, and chemical stability.