Alcantra, Justin C. creator Author Aliangan, Mary-Ann D. Author Iligan, Justine Neil T. Author Magallanes, Ma. Cristina Author Raposa, Khurt Laurence Author Santelices, Emmanuel M. Author Villarosa, Tricia Mae Author text Manila Technological University of the Philippines, 2025 monographic eng

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vii, 107 pages: 29cm. This study developed and evaluated thermal property of denim textile fiberboard using isocyanate as binder in response to growing demands for sustainable, non-wood construction materials. Addressing the research gap involving the limited use of denim fibers in engineered composites and the lack of performance data on denim–isocyanate bonding behavior, the study aimed to formulate five mix ratios, determine their thermal conductivity, and assess mechanical and physical properties based on PNS ISO 8302:2021 and PNS/ISO 16895:2017. Using an experimental design, five board formulations (97:3 to 89:11 denim– isocyanate ratios) were fabricated at a target density of 0.8 g/cm3 and subjected to tests including Modulus of Rupture, Modulus of Elasticity, Internal Bond Strength, Thickness Swelling, Water Absorption, and Thermal Conductivity. Results showed that higher isocyanate content improved MOR, IB, and dimensional stability; however, none of the samples met minimum PNS requirements for internal bond, stiffness, wet bending, or swelling limits. The thermal conductivity was within the range expected from natural fiber composite materials; however, it did not meet the performance requirement for high thermal resistance. This paper finds that although the composite material has a positive trend, there is a need to optimize the binder-to-fiber ratio, among other considerations. The research contributes to UN-SDGs on responsible consumption, sustainable manufacturing, and waste reduction by demonstrating the potential of recycled denim as an eco-friendly composite material. Keywords: Denim Fiberboard; Isocyanate Binder; Thermal Conductivity; Sustainable Composites; Medium-Density Fiberboard (MDF) Justin C. Alcantara, Mary-Ann D. Aliangan, Justin Neil T. Iligan, Ma. Cristina Magallanes, Khurt Laurence Raposa, Emmanuel M. Santelices, and Tricia Mae Villarosa..- Bachelor's Thesis College of Industrial Technology..- Bachelor of Engineering Technology Major in Construction Technology: Technological University of the Philippines, 2025. Includes bibliographic references and index. Construction Technology Denim Fiberboard Thermal Conductivity BTH TH 438 A43 2025 260617 20260617173755.0 English