| 铜盐对聚丙烯腈预氧化纤维增强作用的研究 |
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| 引用本文： | 李建明,潘鼎,潘婉莲,吴宗铨,黄永秋.铜盐对聚丙烯腈预氧化纤维增强作用的研究[J].东华大学学报(自然科学版),1990(Z1). |
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| 作者姓名： | 李建明 潘鼎 潘婉莲 吴宗铨 黄永秋 |
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| 作者单位： | 中国纺织大学纺织化学工程系物理化学教研究室，中国纺织大学化学纤维研究所，中国纺织大学化学纤维研究所，中国纺织大学化学纤维研究所，中国纺织大学化学纤维研究所 |
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| 摘 要： | 聚丙烯腈预氧化纤维(以下简称PANOF)是碳纤维生产过程中的中间产品,其性能的好坏与最终产品碳纤维的优劣密切相关。本文采用热机械分折(TMA)、热失重分折(TGA)、溶胀差示扫描量热分折(SDSC)、X光电子能谱分折(XPS)等实验方法研究了铜盐对PANOF的增强作用。发现Cu~+与PANOF中未环化的氰基有着强烈的相互作用。经铜盐处理后所制得的PANOF,其强度可增加30％。研究结果表明,PANOF得以增强的原因是由于发生了以Cu~+为中心离子,PANOF作为配位体的络合作用。络合配位键的生成使未环化的氰基得以交联,交联网络的形成使PANOF的强度明显提高。
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| 关 键 词： | 聚丙烯腈纤维 碳纤维 配位化合物 交联 环化 铜盐 结合能 聚丙烯腈预氧化纤维 |
INCREASING TENACITY OF POLYACRYLONITRILE PREOXIDED FIBER USING CUPROUS SALT |
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| Li Jianming,Pan Ding,pan Wanlian,wu Zhongquan,Huang Yongqiu.INCREASING TENACITY OF POLYACRYLONITRILE PREOXIDED FIBER USING CUPROUS SALT[J].Journal of Donghua University,1990(Z1). |
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| Authors: | Li Jianming Pan Ding pan Wanlian wu Zhongquan Huang Yongqiu |
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| Abstract: | Polyacrylonitrile preoxided fiber (PANOF) is an intermediate of carbon fiber preparation. The quality of PANOF is closely related to the property and structure of carbon fiber. In this paper, thermal mechanical analysis(TMA), Thermogravimetric analysis(TGA), swelling differential scanning calorimetric analysis (SDSC) and X-ray photoelectron spectroscopy (XPS) arc used to study the increasing tenacity of PANOF from the precursor treated with cuprous salt. It has been discovered that the cuprous salt reacts strongly with the uncyclized CN group of PANOF. The tenacity of PANOF after treating with cuprous salt is increased by 30%. The results show that the cause of this tenacity improvement is the formation of coordination compounds. Cu~+ is the central ion and PANOF the coordinate. It is due to the coordinated bond that the crosslinking structure is formed by uncyclized CN group of PANOF. |
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| Keywords: | polyacrylonitrile fibre carbon fibres coordination compounds crosslinking cyclization cuprous salt binding energy polyacrylonitrile preoxided fiber |
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