KIMrigid® PIR Systems for Safe and Sound Structures

Safe and Durable Structures with KIMrigid® PIR Systems Like all around the world, fires in our living spaces occur in our country due to preventable or unpreventable factors. Due to rapid population growth, unplanned urbanization and rapid industrialization in our country, the number of fires and material losses caused by fires are increasing day by day. It is clear that a single spark can destroy all our labor and hopes within minutes. Many countries have developed various directives to protect against fire. Based on these directives, the materials used in our structures must be fire-resistant. In modern architectural structures, the use of traditional materials is being abandoned for economic reasons and difficulties encountered during the construction phase. For these reasons, sandwich panels are used as building construction materials due to their ease of use and economical nature. Sandwich panels are generally building construction materials that provide thermal insulation and mechanical strength by containing filling material of different types and thicknesses between aluminum or galvanized sheets. As internal filling material in sandwich panels, polyurethane foam (PUR), polyisocyanurate foam (PIR), expanded polystyrene foam (EPS), extruded polystyrene rigid foam (XPS), mineral wool and glass wool are generally used. Polyurethane foams are copolymers linked together by urethane groups, formed by diisocyanates containing two or more –NCO groups and diols containing two or more –OH groups, foamed by chemical or physical means. Polyisocyanurate foams (PIR); with their low thermal conductivity coefficient, high compressive strength and high dimensional stability, are presented as fire-resistant building materials of the future. Polyisocyanurate foams are a more specialized type of polyurethane foams. The difference between polyurethane foam (PUR) and polyisocyanurate foam (PIR) is that diisocyanate and diols are in different stoichiometric ratios during the foam formation reaction. While the (NCO/OH) ratio in polyurethane foams is close to 1 or slightly above 1, in polyisocyanurate foams (PIR) this ratio is larger than that in polyurethane foams and closer to 2. In short, in polyisocyanurate foams, diisocyanate molecules are present in the environment in amounts greater than what would completely react with the diols stoichiometrically. The excess –NCO groups in the environment react with each other through various trimerization catalysts to form isocyanurate structures. The cyclic isocyanurate blocks improve the flame-retardant properties of the foam structure. Polyisocyanurate foam formulation generally includes polyester polyol mixtures (–OH component), polymeric MDI (–NCO component), additives, trimerization catalyst mixtures and blowing agents. The good flame-retardant properties of polyisocyanurate foams are due to the isocyanurate and aromatic polyester polyol structures. As Kimpur, we are increasing our R&D work day by day to prepare innovative, economical and environmentally friendly products. In this context, we have developed KIMrigid® PIR Systems for polyurethane foam production that enables the achievement of safe and sustainable structures with fire resistance and excellent thermal insulation properties in buildings. KIMrigid® PIR Systems are specially designed structures that provide higher fire resistance compared to PUR systems. Thanks to isocyanurate structures, the foam's resistance to flames increases during fires. KIMrigid® PIR Systems have compressive strength values in the range of 130-150 kPa, densities of 38-42 g/ml, thermal conductivity coefficient of 21 mW/mK and fire resistance at a minimum level of B s2 d0 according to the European standard SBI (Single Burning Item). As the Kimpur R&D team, we continue our work in our simulation center, conducting correct analyses and obtaining quick results in line with our customers' needs. As Kimpur, we continue our work as a company followed in Turkey and World markets with innovative products and exceptional solutions. R&D Team Kimpur