《Table 3 The properties of stabilized fibers and carbon fibers.》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《沥青前驱体氧形态对其沥青与炭纤维性能的影响（英文）》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

Yield，stabilization and carbonization yield by tube furnace.ΔO，uptake of oxygen content.

The w eight gain started at about 160℃and reached the maxima of 106.5%at 335℃，105.9%at 329℃and 106.5%at 337℃for P200AT-PF，P250AT-PF and P300AT-PF，respectively.This meant a higher oxidation reactivity of P250AT-PF because it reached the maximum at a low est temperature，w hich w as ascribed to its higher methyl carbon content.The highest yields w ere 113.3%for P200AT-SF，112.0%for P300AT-SF and 110.5%for P250AT-SF.How ever，the oxygen contents of P200AT-SF，P250AT-SF and P300AT-SF presented in Table 3 w ere 19.16%，17.34%and 17.45%，respectively.It w as obvious that P250AT-PF show ed a less oxygen uptake of 15.83%than that of P200AT-PF（18.00%）and P300AT-CF（16.72%）during stabilization.This could be ascribed to the fact that P250AT had a higher oxygen content，w hich decreased the oxygen uptake and led to a low er stabilization yield.In addition，the released gases w ere mainly H2，CH4，H2O，CO and CO2during stabilization as revealed by TG-M S show n in Fig.4（b-f）.H2w as released betw een 170 and 560℃，the main peak w as located at 350℃，w hich w as accompanied by a shoulder at about 490℃.The evolution of CH4took place betw een 430 and 650℃and reached a maximum at about 510℃.H2and CH4w ere released at slightly low er temperatures and less amounts for P200AT-PF than P250AT-PF and P300AT-PF because of its higher content of aliphatic chain[25，26].M ore H2O w as released from oxidative dehydrogenation reaction mainly at about 650℃for P200AT-PF than the other tw o PFs.M oreover，CO and CO2w ere escaped w ith a main peak at about 350 and 510℃，respectively.It is noticed that the CO and CO2w ere released at higher temperatures w ith slightly less amounts for P300AT-PF than P250AT-PF and P200AT-PF，because P300AT-PF w as more difficult to be oxidized ow ing to its higher aromaticity.