Thermal properties of flax fiber scoured by different methods
Thermal properties of flax roves untreated and treated were characterized by differential scanning calorimetry (DSC) and thermal gravity analyzer (TGA) in order to understand their thermal behavior in more detail and to evaluate the effect of scouring processing on the thermal behavior. Flax roves w...
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Published in | Thermal science Vol. 19; no. 3; pp. 939 - 945 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Belgrade
Society of Thermal Engineers of Serbia
2015
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Subjects | |
Online Access | Get full text |
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Summary: | Thermal properties of flax roves untreated and treated were characterized by
differential scanning calorimetry (DSC) and thermal gravity analyzer (TGA)
in order to understand their thermal behavior in more detail and to evaluate
the effect of scouring processing on the thermal behavior. Flax roves were
treated with six kinds of methods including biological scouring, one bath,
two bath, bleaching, alkali scouring and industry chemical scouring as
standards. Results showed that all treatments improved thermal stability of
flax roves. The results indicated that glass transition temperature (Tg)
decreased after scouring besides the sample by directly bleaching. It is
more difficult to determine the endothermic peak of flax treated by chemical
scouring in industry because it takes a very flat course. A distinct
endothermic peak was observed for the untreated flax rove, while a distinct
exothermic peak in different temperature interval was revealed for other
four treated flax rove samples. For TGA analysis, thermal degradation of
flax roves studied consists of three regions of the initial, main, and char
decomposition, and the third stage consists of secondary weight loss and
carbonization for flax roves with biological scouring, one-bath and
two-bath. Besides, different residue left indicates that the bio-scoured
flax roves are lost with volatile products and does not contribute to char
formation. These results provide valuable preferences for mechanism and top
value added application of bio-scouring in flax roves.
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ISSN: | 0354-9836 2334-7163 |
DOI: | 10.2298/TSCI130329005Z |