Springy Polypropylene: A Novel Elastomeric Biomaterial
| Autor: | S. L. Cannon, W. O. Statton |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
Polypropylene
chemistry.chemical_classification Morphology (linguistics) Materials science Polymers and Plastics General Chemical Engineering Biomaterial Stiffness Polymer Elastomer Analytical Chemistry chemistry.chemical_compound chemistry medicine Cyclic loading Composite material Deformation (engineering) medicine.symptom |
| Zdroj: | International Journal of Polymeric Materials. 5:165-176 |
| ISSN: | 1563-535X 0091-4037 |
| DOI: | 10.1080/00914037708075204 |
| Popis: | Polypropylene has been fabricated into a different molecular morphology which shows the usual stiffness and high strength indigenous to this polymer, but which also exhibits surprising elastic behavior. Fibers and films in this form are extensible to several hundred percent without rupture and yet show nearly complete recovery to their original length when the force is removed. No other biomaterial which is in present use has such a unique set of mechanical properties. This study has identified the nature and extent of the unusual springy behaviour; the stress-strain, recovery, and cyclic loading properties are now well documented. A stress-softening occurs as the result of the amount of the initial deformation: this means the fibers may be conditioned in order to produce a surprisingly wide spectrum of stiffnesses. Once exercised, the deformation is quite reproducible. Initial fatigue behavior is commendable, on a par with nylon tire yarn fibers. No change in properties has resulted from either ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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