ADVANCING THERMAL INSULATION: AN INNOVATIVE STATISTICAL AND EXPERIMENTAL ANALYSIS OF POLYURETHANE-BASED MATERIALS

Abstract

This study integrated a framework combining construction industry–based questionnaire surveys with experimental thermal insulation performance evaluations. In contrast to previous polyurethane foam (PUF) insulation studies predominantly limited to laboratory-scale investigations or problem-based literature reviews, this approach directly connects field-based problem identification and material performance assessment. The selection of the right insulation materials requires careful consideration of property. PUF was identified as one of the most suitable materials in terms of physical, mechanical, and thermal properties; it is relatively simple to apply and cost-effective. The result reports that PUF insulation is through statistical and experimental methods. Statistical analyses were conducted on construction-related samples at a significance level of α = 0.05; the regression model was Y = 1.020 + 0.204X₁ + 0.289X₂ + 0.259X₃. Tensile strength was 680 kPa, density was 97 kg/m³, hardness was 70 Shore A, water absorption was 9%, decomposition temperature was 330°C, and thermal conductivity was 0.054 W/(m·K).  The result indicates significant improvement in tensile strength and thermal performance; reductions in density and water absorption indicate the development of a lighter, more durable, and more effective thermal insulation system. These integrated improvements highlight the substantial advancement achieved in this study.