Journal
MACROMOLECULAR MATERIALS AND ENGINEERING
Volume 300, Issue 1, Pages 48-56Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.201400125
Keywords
foam; injection molding; insulation; open-cell; polycarbonate
Funding
- NSERC Network for Innovative Plastic Materials and Manufacturing Processes [NETGP 380101-08]
- AUTO21 [C509-CMF]
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This paper studies the processing, structural, and property relationships needed for highly expanded open-cell polycarbonate (PC) foams. Acoustic insulation, thermal conductivity, and mechanical properties of the foams were characterized. Using foam injection molding, samples expansion ratios ranging from 1 to 8 and open-cell content up to 85% were prepared. Relative to their solid counterparts, the sound wave transmission loss was increased up to 2.5-fold while their thermal conductivity was decreased up to fivefold. Thus, lightweight rigid PC foams, useful in both sound and thermal insulation applications, were developed.
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