Weather-Induced Degradation of LLDPE: Calorimetric Analysis
作者:
S.H. Hamid,
F.S. Qureshi,
M.B. Amin,
A.G. Maadhah,
期刊:
Polymer-Plastics Technology and Engineering
(Taylor Available online 1989)
卷期:
Volume 28,
issue 5-6
页码: 475-492
ISSN:0360-2559
年代: 1989
DOI:10.1080/03602558908049808
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Studies of polymer degradation over the past decade have increasingly been carried out using thermoanalytical methods. These methods involve the measurement of a convenient variable during a gradual, linear increase in temperature. The most widely used of these techniques are thermogravimetry (TG), differential thermal analysis (DTA), and differential scanning calorimetry (DSC). The morphology of a polymer sample (i.e., the crystallinity, shape and size of the crystals, the structure of the surface of the crystals, and the strain of amorphous regions) influences the heat content and its dependence on temperature. The latter can be satisfactorily investigated by calorimetry measurement in a differential scanning calorimeter.
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