Estimation of the Solubility Parameter of Carbon Fiber by Inverse Gas Chromatography
Inverse gas chromatography (IGC) was applied for the determination of the solubility parameter of carbon fiber in this work. A series of solvents with known solubility parameter (8) were chosen as test probes, including n-decane, n-heptane, toluene, ethanol and acetone in this study. The activity coefficients (Ω) and the Flory-Huggins parameters (x) between the carbon fiber and the probes, which calculated from the chromatographic retention volumes of the probes (V~R0), decrease with the system temperature increasing in all the systems in this work. Using the DiPaola and Guillet method, these Flory-Huggins parameters (x) were then used to determine to the carbon fiber solubility parameter (δ). It was found that the solubility parameter (8) of the T700SC carbon fiber was 12. 53 (MPa)1/2,12. 48 (MPa)1/2, 12.50 (MPa)1/2 and (12.59) MPa1/2 at 30℃, 40℃, 50℃ and 60℃, respectively. The variability of these measured solubility parameter is merely about 1-2％ from 30 to 60℃ which show that the carbon fiber solubility parameter is not very sensitive to temperature in the covered range.
inverse gas chromatography solubility parameter carbon fiber temperature
Shi Fenghui Dai Zhishuang Zhang Baoyan Chen Xiangbao
Composites and Applications Lab, Beijing Institute of Aeronautical Materials, Beijing 100095,China School of Material Science and Engineering, Beihang University, Beijing 100191, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
813-815
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）