Accession Number:

AD0652653

Title:

RESEARCH ON CLOSED-CELL SPONGE AS A PRESSURE TECHNIQUE FOR PROTECTIVE ASSEMBLIES

Descriptive Note:

Final rept., 10 May 1965-5 Jul 1966

Corporate Author:

NORTHROP SPACE LABS HAWTHORNE CA SPACE MATERIALS LAB

Personal Author(s):

• Heitz, R. M.
• Jones, G. W.

Report Date:

1967-02-01

Pagination or Media Count:

40.0

Abstract:

A closed-cell foam was developed for integration into a partial pressure suit that would produce pressure on the human body to provide protection in a vacuum environment. A survey of literature and industrial organizations was followed by an extensive experimental study on known foam systems and the development of new foam systems. The evaluation and development of the foam composition and processing techniques are described. From this study, the formulation and processing of suitable vinyl closed-cell foams were developed with reproducible properties in controlled processes. Their physical properties passed successfully the required cycling test wherein the foams, properly restrained and exposed to vacuum, exerted a pressure response of 7 psia or 3.5 psia depending upon the process used.

Descriptors:

• *PROTECTIVE CLOTHING
• *PRESSURE SUITS
• *FOAM RUBBER
• VACUUM
• PROTECTION
• SPACE FLIGHT
• VINYL PLASTICS
• POLYVINYL CHLORIDE
• PROCESSING
• PHYSICAL PROPERTIES
• SPACE ENVIRONMENTS
• TABLES(DATA)

Subject Categories:

• Plastics
• Protective Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE