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Bomberg M, Kumaran M, Ascough M, Creazzo J, Zane J, Syrop A. Techniques to Assess the Role of Various Components in Retarding Aging of Rigid, Faced Thermal Insulating Foams. J CELL PLAST 2016. [DOI: 10.1177/0021955x9403000201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- M.T. Bomberg
- National Research Council (NRC) Canada Montreal Road Ottawa, Ontario, Canada K1A 0R6
| | - M.K. Kumaran
- National Research Council (NRC) Canada Montreal Road Ottawa, Ontario, Canada K1A 0R6
| | | | - J.A. Creazzo
- E. I. du Pont de Nemours & Co. Chesnut Run Plaza P.O. Box 80711 Wilmington, DE 19880-0711
| | - J.K. Zane
- BASF Corporation 1609 Biddle Avenue Wyandotte, MI48192-3736
| | - A.H. Syrop
- BASF Corporation 1609 Biddle Avenue Wyandotte, MI48192-3736
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Hawkins MC, O’Toole B, Jackovich D. Cell Morphology and Mechanical Properties of Rigid Polyurethane Foam. J CELL PLAST 2016. [DOI: 10.1177/0021955x05053525] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polyurethane foam, used as a supporting or insulating material, is sometimes formed in complex molds with significant variations in geometry and size. This work investigates the relationships between cell morphology, density, and mechanical properties in a molded polyurethane material using relatively small cylindrical molds. Understanding these relationships will help mechanical designers to analyze and predict the responses of foam components accurately. Three mold sizes are used to study changes in cell morphology (cell area, cell diameter, aspect ratio, cell angle, cell edge length, cell face thickness, and cell edge thickness), density, and mechanical properties (Young’s modulus and collapse stress) with respect to position within the mold. The density is shown to increase from the top to the bottom of the reference mold but does not change significantly in the small and tall molds. However, the mechanical and cell morphology properties show more changes in the small and tall molds when compared to the reference mold even though there are only small changes in density.
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Affiliation(s)
- Michelle Cameron Hawkins
- Department of Mechanical Engineering, University of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154, USA
| | - Brendan O’Toole
- Department of Mechanical Engineering, University of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154, USA,
| | - Dacia Jackovich
- Department of Mechanical Engineering, University of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154, USA
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Michaeli W, Haberstroh E, Heinz R, Wirtz J, Peters R. Extruded Foams: Production and Further Processing. CELLULAR POLYMERS 2002. [DOI: 10.1177/026248930202100503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- W. Michaeli
- Institut für Kumststoffverarbeitung Ponststr. 49 D-52062 Aachen
| | - E. Haberstroh
- Institut für Kumststoffverarbeitung Ponststr. 49 D-52062 Aachen
| | - R. Heinz
- Institut für Kumststoffverarbeitung Ponststr. 49 D-52062 Aachen
| | - J. Wirtz
- Institut für Kumststoffverarbeitung Ponststr. 49 D-52062 Aachen
| | - R. Peters
- Institut für Kumststoffverarbeitung Ponststr. 49 D-52062 Aachen
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