ISSN:
0193-7197
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
In an attempt to better understand factors that govern the fracture resistance of rigid vinyl components, a multifaceted study was undertaken. Fracture toughness was determined by a high rate servohydraulic tester. Failure morphologies were analyzed by Scanning Electron Microscopy (SEM). In many cases, very abrupt ductile to brittle transitions were observed at moderate strain rates. In addition, since the glass transition temperature for these materials are relatively low, being of the order of 70°C to 80°C, considerable free volume relaxation or physical aging are observed at conditions near or slightly above ambient. Differential Scanning Calorimetry (DSC) was used to quantify the degree of aging. Results correlated with observed failure properties.
Additional Material:
14 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/vnl.730100410
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