Structure and performance of fibers prepared from liquefied wood in phenol

The fibers from liquefied wood in phenol (WPFs) were spun by adding hexamethylenetetramine as synthetics and cured by soaking in solution containing hydrochloric acid and formaldehyde as main components. The chemical structure of WPFs remarkably changed from that of liquefied wood was identified by FT-IR spectrometer. WPFs with the average diameter of 27 similar to 42 um, tensile strength of 230 similar to 356 NLPa and modulus of 1531 GPa were obtained using spinning speed of 0.72 mu m min(-1), hydrochloric acid concentration of 18.5 %, heating rate of 10 degrees Ch(-1), and curing time of 4 h. These WPFs showed a high thermal stability and a complex thermal decomposition process by TG(thermogravimetric) analysis. It was also found that the two obvious weight loss temperatures of WPFs were 510 degrees C and 748 degrees C.