Advanced Technologies and Materials

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Vol. 49 No. 1 (2024)
Original articles

Influence of Some Selected Ceramic Fillers on Rheological, Morphological, Mechanical and Thermal Stability Properties of Rigid Polyurethane Foam

Isiaka Oluwole Oladele
Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Ondo, State, Nigeria
Samuel Olumide Falana
Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Ondo, State, Nigeria
Linus Nnabuike Onuh
Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Ondo, State, Nigeria
Fisayo Taiwo Omotosho
Department of Materials Engineering, Faculty of Materials and Chemical Engineering, University of Miskolc, Hungary
Samson Oluwagbenga Adelani
Materials Science and Engineering Program, University of Colorado Boulder, 80303, Colorado, USA

Published 2024-04-12

abstract views: 68 // Full text article (PDF): 3


Keywords

  • polyurethane,
  • mineral fillers,
  • rheology,
  • thermal stability,
  • rigid foam,
  • green foam
  • ...More
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How to Cite

Oladele, I. O., Falana, S. O., Onuh, L. N., Omotosho, F. T., & Adelani, S. O. (2024). Influence of Some Selected Ceramic Fillers on Rheological, Morphological, Mechanical and Thermal Stability Properties of Rigid Polyurethane Foam. Advanced Technologies and Materials, 49(1), 7–18. https://doi.org/10.24867/ATM-2024-1-002

Abstract

This study investigates the influence of limestone, mica, granite, and kaolin on the properties of polyurethane foam. The selected ceramic fillers were pulverized and sieved to obtain particles smaller than 90 µm that were used as reinforcements in the polyurethane matrix in a randomly dispersed mode. The matrix constituents were mixed in the same ratio while fillers were introduced via a one-shot system approach in predetermined proportions of 3–7 wt. %. The work was carried out to identify the optimum filler to be utilized in the production of improved polyurethane rigid foams. The cream, gel, rise, and tack-free times as the rheological properties were observed as the filler materials were introduced in the polyurethane matrix. Mechanical, water absorption and thermal stability properties were evaluated while the morphology of the filled polyurethane foams was examined with SEM. From the results, it was found that kaolinfilled polyurethane foam produced the optimum rheological, mechanical, water absorption, and thermal stability properties. Hence, particulate kaolin of less than 90 µm can be used in the production of green foam for various applications in health, automobile, and household materials.

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