| Biography
Jesper Bøgelund
is a Polymer Scientist at Coloplast Research and holds the M.Sc.
degree in materials chemistry from the University of Copenhagen.
During the last
1½ years he has been occupied with the ever ongoing quest for new
materials for polymer films and establishing Differential Scanning
Calorimetry as an analytical tool within Coloplast.
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Abstract
Differential
Scanning Calorimetric methods are widely used in analysis of
polymers. Polymer properties are often strongly influenced by the
thermal history of the specific substrate. The DSC thermogram of a
polymer is immediate related to thermal history of the sample, but
often insufficient information is extracted from the experiments
due to "non-quantitativity" of the measurements. In this
study we investigate the use a chemometric method to establish a
connection between the thermal history of an injection moulded
substrate, the DSC thermogram of the substrate and the quality of
a welding to this substrate.
The basics of
Principal Component Analysis is discussed, and an example of PCA
on DSC and tensile data is given. A model of the welding strength
based on a reduced data set was calculated.
The use of
multivariable data analysis for DSC experiments is suggested.
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