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Determining fiber fineness in flax using derivative thermogravimetric analysis, scanning electron microscopy, and airflow methods
Author(s) -
Faughey G. J.,
Sharma S. S.,
McCall R. D.
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(20000124)75:4<508::aid-app5>3.0.co;2-l
Subject(s) - fineness , thermogravimetric analysis , airflow , fiber , scanning electron microscope , materials science , composite material , chemistry , organic chemistry , physics , thermodynamics
This study investigates the assessment of fiber fineness by a range of techniques. Conventional airflow and gravimetric methods were compared with derivative thermogravimetric analysis (DTG). The novel use of scanning electron microscopy (SEM) for examining fiber cross‐sections has also been deployed. DTG analysis when compared with airflow measurements has shown that differences in fiber fineness can be modeled from the pyrolysis data. The relationship between the two methods was highly significant. The diameter of the fiber cross‐sections, measured from SEM micrographs, revealed a significant relationship with both DTG and airflow measurements. Gravimeteric determinations exhibited a poor correlation with the other methods and have shown an inability to distinguish between fibers of similar grades. The use of DTG for predicting fiber fineness was validated using partial least squares regression on a test set of samples. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 75: 508–514, 2000