Accession Number:
ADA023665
Title:
The Strength of Thermoplastic Materials. Part 2. A Theory for Material Strength and Its Application to Liquid Stress Cracking.
Descriptive Note:
Technical rept.,
Corporate Author:
EXPLOSIVES RESEARCH AND DEVELOPMENT ESTABLISHMENT WALTHAM ABBEY (ENGLAND)
Personal Author(s):
Report Date:
1975-04-01
Pagination or Media Count:
33.0
Abstract:
The manner in which polymers, with phenylene groups in the main chain, break on contact with certain liquids, has led to the development of a tentative theory regarding the initiation mechanism of breaking of polymers when failing under stress alone and has resulted in a molecular theory of polymer strength which appears to predict the strength of the material from surface free energy and a consideration of molecular geometry. One result of the theory is the possible prediction of the maximum strength of a polymer from the chemical configuration of the monomer.
Descriptors:
- *POLYMERS
- *CRACKING(FRACTURING)
- *THERMOPLASTIC RESINS
- DENSITY
- TENSILE STRENGTH
- LIQUIDS
- STRESS TESTING
- NYLON
- POLYAMIDE PLASTICS
- POLYSTYRENE
- ELASTOMERS
- POLYMETHYL METHACRYLATE
- CROSSLINKING(CHEMISTRY)
- POLYPROPYLENE
- CONFIGURATIONS
- FAILURE(MECHANICS)
- POLYCARBONATES
- FORMALDEHYDE
- POLYETHYLENE
- POLYVINYL CHLORIDE
- POLYPHENYLENES
- SURFACE ENERGY
- CRAZING
- POLYOXYETHYLENE
- UNITED KINGDOM
Subject Categories:
- Plastics
- Solid State Physics