ENCAPSULATED FOAM FOR AEROSPACE SUPPORT APPLICATIONS.
Abstract
The objective of this program was to rigidize flexible structures in an aerospace environment with rigid polyurethane foams. Vacuum foam formulations, incorporating encapsulated components to separate the reactive materials and provide a satisfactory shelf-life, were developed to achieve this objective. Foams were produced at reduced pressures of at least .000001 Torr, utilizing single package, capsule containing formulations. Heat was used to activate the formulations. A 1.0 foot sphere, a 2.0 foot shelter, the floor of a 7.0 foot shelter, and numerous small solar collectors were rigidized with these systems. An alternate rigidizing system was developed that involved the rigidization of a preformed flexible foam using the preparation of a polyester as the rigidizing mechanism. This technique was successfully applied to model solar energy collectors in vacuum. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1964
- Accession Number
- AD0610538
Entities
People
- James A. Wrede
- Lawrence R. Lankston
Organizations
- NCR Corporation