Abstract/Details

Studies of ReCrete: A polyurethane foam


2004 2004

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Abstract (summary)

Polyurethane foam is often molded directly in place as a thermal or vibration insulator, energy absorbing material, or core material for a sandwich structure. A smooth thin skin forms between the mold and the interior cellular structure of the foam. A non-uniform microstructure is often visible when foam cross-sections are examined, resulting in density variations throughout the foam and the resulting mechanical property variations. This study investigates the effect of mold temperature and mold size on the average density and some of the resulting mechanical and thermal properties for a polyurethane foam system molded in aluminum cylinders and boxes. Resulting properties are also compared to more uniform foam samples cored out from larger molds. It is shown that the molding process, temperature, and size have a significant effect on the foam density. The density, in turn, affects the quasi-static and dynamic mechanical properties, as well as thermal and chemical properties.

Indexing (details)


Subject
Mechanical engineering
Classification
0548: Mechanical engineering
Identifier / keyword
Applied sciences; Polyurethane foam
Title
Studies of ReCrete: A polyurethane foam
Author
Mohan, Robert B.
Number of pages
215
Publication year
2004
Degree date
2004
School code
0506
Source
DAI-B 66/05, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780542161728, 0542161729
Advisor
O'Toole, Brendan J.
University/institution
University of Nevada, Las Vegas
University location
United States -- Nevada
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
3176934
ProQuest document ID
305071617
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305071617
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