The relations between relaxation spectra, flaw growth, and ultimate properties of PVC
作者： W. Retting
DOI: 10.1016/0014-3057(70)90009-1
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摘要: Abstract Firstly a short survey is given of the phenomenological relations between ultimate properties and relaxation spectra polymers. It turned out that in many cases temperature-time positions brittle-tough transitions agree quite well with those certain maxima. Further, it demonstrated (in particular extensibility polymers) are essentially determined by growth flaws. A description an indirect method to examine average flaw during tensile tests. By means this method, shown case PVC secondary (short time low temperature) mechanisms cause first transition diminution macroscopic stress. second occurs when microscopic notch stresses diminished main (long high mechanism.
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