Investigation of the Role of Surfactants on the Properties of Soy-Based Polyurethane Foam
Polyurethanes (PUs) are versatile polymers obtained by step growth polymerization between diisocyanate or polyisocyanate, and hydroxyl terminated oligomer (polyol) with at least two reactive hydrogen atoms. In this study, soy-based PU foams were prepared using different surfactants while keeping other ingredients such as polyol, isocyanate, and catalyst constant. The prepared samples were tested for mechanical and thermal properties to see the effect that surfactants impart upon these properties. The morphology of the foam samples was observed using scanning electron microscopy. Significant differences were observed in the cellular structure, thermal and mechanical properties of the foam samples. The cellular size of the foams was correlated with the mechanical and thermal properties. It was found that surfactants which reduced the viscosity of the polyol mixture to the greatest extent, produced smaller cell foams which exhibited the highest mechanical strength and thermal insulation.
G. S. Dhaliwal et al., "Investigation of the Role of Surfactants on the Properties of Soy-Based Polyurethane Foam," Proceedings of the 5th Annual Composites and Advanced Materials Expo (2018, Dallas, TX), The Composites and Advanced Materials Expo (CAMX), Oct 2018.
5th Annual Composites and Advanced Materials Expo, CAMX 2018 (2018: Oct. 15-18, Dallas, TX)
Mechanical and Aerospace Engineering
Keywords and Phrases
Alcohols; Atoms; Mechanical properties; Polyurethanes; Scanning electron microscopy; Surface active agents; Thermodynamic properties, Cellular sizes; Cellular structure; Hydrogen atoms; Hydroxyl-terminated; Mechanical and thermal properties; Polyurethane Foam; Step-growth polymerizations; Thermal and mechanical properties, Thermal insulation
Article - Conference proceedings
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01 Oct 2018