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Record 3 of 14
One-step microwave foaming and curing
Author and Affiliation:
Gagliani, J.(International Harvester Co.)
Lee, R.(International Harvester Co.)
Sorathia, U. A. K.(International Harvester Co.)
Wilcoxson, A. L.(International Harvester Co.)
Abstract: Process that combines microwave foaming and curing of polyimide precursors in single step produces fire-resistant foam slabs of much larger volume than has previously been possible. By adding selected conductive fillers to powder precursors and by using high-power microwave oven, foam slabs with dimensions in excess of 61 by 61 by 7.6 cm are made. Typical foaming and curing and curing time is 35 minutes in microwave oven with additional 1 to 2 hour postcure in conventional oven.
Publication Date: Jan 01, 1981
Document ID:
19800000420
(Acquired Nov 04, 1995)
Accession Number: 80B10420
Subject Category: FABRICATION TECHNOLOGY
Report/Patent Number: MSC-18707
Document Type: NASA Tech Brief
Publication Information: NASA Tech Briefs; p. P. 386; (ISSN 0145-319X); 5; 3; SEE N77-28301/TB
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Johnson Space Center; Houston, TX, United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: CURING; FIRE PREVENTION; FLAME RETARDANTS; FOAMS; MICROWAVE COUPLING; POLYAMIDE RESINS
Availability Source: National Technology Transfer Center (NTTC), Wheeling, WV
Availability Notes: See Also NASA-CR-160576(N80-22492/TB)
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