Accession Number:

ADA183520

Title:

Development of an EPDM Elastomer with Improved Bondability for Use in Sonar Transducers

Descriptive Note:

Final rept. FY80-FY85

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Beumel, Linda L.
• Thompson, Corley M.

Report Date:

1987-07-30

Pagination or Media Count:

61.0

Abstract:

EPDM designates an elastomer that is a polyolefin terpolymer. EPDM elastomers are attractive candidates for underwater acoustical applications. In this work, the formula of EPDM compounds was initially adjusted to produce a material with good bondability and strength. The relationships between the physical and acoustical properties and each formula ingredient were investigated. Long-term properties such as fluid compatibility and environmental resistance were also studied. A quality-control program has been developed, and the variables necessary to control mixing have been studied. The resulting formulation, called EPDM-RLE has good bondability and strength, excellent acoustical fluid compatibility and environmental resistance, and very good acoustical properties. Keywords Acoustical materials, Sonar transducer, Elastomer, Bondable, EPDM.

Descriptors:

• *ACOUSTIC PROPERTIES
• *ELASTOMERS
• *OLEFIN POLYMERS
• *SONAR TRANSDUCERS
• ACOUSTICS
• COMPATIBILITY
• CONTROL
• ENVIRONMENTS
• FLUIDS
• LONG RANGE(TIME)
• MATERIALS
• MIXING
• PHYSICAL PROPERTIES
• RESISTANCE
• UNDERWATER

Subject Categories:

• Physical Chemistry
• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE