A Technique to Measure the Volume of Elastomers as a Function of Temperature and Pressure with an Acoustic Pycnometer.

Abstract

A technique to determine the volume of elastomer samples as a function of temperature and pressure is described. The volume of butyl-252 elastomer sample is measured with an acoustic pycnometer at temperatures of 10 deg C and 25 deg C over the pressure range from 2 MPa to 70 MPa with an accuracy of better than 0.3 percent. A calibration method is used to enhance the low-pressure range of the acoustic pycnometer. The theory is developed for this calibration procedure. From the volume vs. pressure measurements, the isothermal bulk modulus is calculated at 10 deg C and 25 deg C for the butyl-252 sample. The volume of a type-W neoprene elastomer sample is also measured at 25 deg C over the indicated pressure range. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 28, 1981
Accession Number
ADA109830

Entities

People

  • Anthony J. Rudgers
  • Erik K. Holmstrom

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bulk Modulus
  • Computer Programs
  • Computers
  • Elastomers
  • Electronic Equipment
  • Equations
  • Error Analysis
  • Frequency
  • Hydrostatic Pressure
  • Laboratory Procedures
  • Materials
  • Measurement
  • Mechanical Properties
  • Military Research
  • Pressure Measurement
  • Simultaneous Equations
  • Static Pressure

Readers

  • Acoustical Oceanography.
  • Polymer Science and Engineering.
  • Thermal Physics or Thermal Science.