STUDY ON THE PYROLYSIS OF THE CURED FIBERS FROM LIQUEFIED WOOD (CUNNINGHAMIA LANCEOLATA) BY THERMOGRAVIMETRY-MASS SPECTROMERY

摘要

In this work, the cured fibers were prepared from wood (Cunninghamia lanceolata (Lumb.) Hook) by liquefaction, melt-spinning with the addition of hexamethylenetetra-mine, and soaking in the solution containing hydrochloric acid and formaldehyde as the main components. The pyrolysis of the cured fibers from liquefied wood was studied by thermogravimetry-mass spectrometry. The results showed that the pyrolysis of the cured fibers is not similar to that of other wood derived rayon fiber, and could be divided into three phases. Most of the decomposition products are released at around 500 degrees C. The decomposition product is mainly composed of H2O (m/z=18), CH4 (m/z=16), CO (m/z = 28), CO2 (m/z = 44), CH2O (m/z = 30), benzene (m/z = 78), toluene (m/z = 92) and macromolecular product. The pyrolysis of the cured fibers is not identical with that of cellulosic materials and phenolic fibers.