Thermal characterization analysis of milkweed flos
Review articleOpen access

AbstractThe thermal analysis of milkweed and several individual commercial materials of similar chemical composition has been carried out. By combining a two-stage thermal process (pyrolysis-combustion) with a thermogravimetric analyzer and a Fourier transform infrared spectrometer, it has been possible to identify the major organic volatile products of pyrolysis and to correlate gas evolution with the decomposition of the individual components (cellulose, hemicellulose and lignin) of the floss. During pyrolysis, acetic acid, formic acid and methanol are formed in addition to CO2 and H2O. The data also show that pyrolytic decomposition of the three chemical constituents of milkweed occur without any apparent synergistic interaction. The combustion of milkweed produced CO2 and H2O, as expected, but the removal of the waxy coating from the fibers results in an increased susceptibility to combustion. The coating displays no effect on the process of pyrolysis.

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