ISSN:
0032-3888
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The paper presents the “Thermophysical Profiles” of selected plastics and discusses their significance in correlating the mechanical properties with the molecular and crystalline structure of these polymers. The profiles were obtained with a new instrument, by imposing a fixed, forced elastic vibration on the speciments' surface and by recording continuously the energy absorbed by the specimens through a temperature range from -200°F to +500°F The profiles locate the first and second order transition points of the test materials (defining, thus, the temperature limits of their use) and indicate the change in modulus with temperature in the viscoelastic region of the polymers. Profiles of the following materials are discussed, low and high density polyethylene, polypropylene and PVC films and unfilled samples of cast epoxy and polyester resins.
Additional Material:
11 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pen.760040205
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