The Environmental Stress-Crazing and Cracking in Polystyrene Under High Pressure,
Abstract
Tensile experiments on polystyrene (PS) in various pressure-transmitting fluids were performed up to 4.0 kb to study the effects of test media on the mechanical behavior of amorphous polymers under pressure. The fracture stress of PS in silicon oil environment was found to depend strongly on the viscosity of oil and the strain-rate of tensile tests. In addition, creep fracture experiments conducted at 2.5 kb in silicon oil with different viscosities suggested that the environmental effects are governed by the rate of diffusion of the environmental liquid into the tensile specimen. It was also found, that water, which hardly affects the mechanical behavior of PS at atmospheric pressure, becomes a significant stress-cracking agent under higher pressure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1975
- Accession Number
- ADA016249
Entities
People
- E. Baer
- K. Matsushige
- S. V. Radcliffe
Organizations
- Case Western Reserve University