Effects of spinning solution on properties of carbon fiber precursors prepared by liquefied wood
Carbon fiber precursors can be prepared by melt-spinning from solution which was obtained from liquefied wood in phenol. The effects of spinning solution on the properties of the precursors were determined in this study. The resulting showed that the mechanical properties of carbon fiber precursors were improved obviously with the phenol/wood ratio increasing during wood liquefaction. Higher synthetics content led to lower mechanical properties of carbon fiber precursors. The decreasing amplitude of the tensile strength and tensile modulus was markedly and that of elongation at break reached maximum when synthetics content increased from 5.0% to 6.0% and from 3.0% to 4.0%, respectively. Moreover, the tensile strength and tensile modulus of the precursors increased to a small extent and elongation at break decreased greatly when synthesis temperature increased. Finally, the mechanical properties of the precursors first increased and then decreased with an increase in temperature-rising-time for the synthesization of spinning solution, and carbon fiber precursors showed optimum mechanical properties under the condition that temperature-rising-time was 40 min.
ZHAO Guangjie MA Xiaojun
College of Material Science and Technology, Beijing Forestry University, Beijing 100083, P.R.China College of Packaging & Printing Engineering, Tianjin University of Science &Technology, Tianjin 3002
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
467-470
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）