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聚酰胺环氧氯丙烷增强聚丙烯腈纤维纸的研究
Strengthening of Polyacrylonitrile Sheets Using Polyamide Epichlorohydrin Resin
收稿日期:  
DOI:10.11980/j.issn.0254-508X.2018.04.005
关键词:  腈纶纸  PAE树脂  自交联  增强机理
Key Words:polyacrylonitrile fiber sheets  polyamide epichlorohydrin resin  self-crosslinking  strengthening mechanism
基金项目:陕西省2015科技统筹创新工程计划项目(2015KTCQ01-44); 陕西省造纸技术及特种纸品重点实验室项目(No.12JS024); 陕西省教育厅重点科学研究计划(重点实验室)(No.17JS016)。
作者单位
张素风 陕西科技大学轻工科学与工程学院陕西省造纸技术及特种纸品开发重点实验室陕西西安710021 
赵东艳 陕西科技大学轻工科学与工程学院陕西省造纸技术及特种纸品开发重点实验室陕西西安710021 
侯 晨 陕西科技大学轻工科学与工程学院陕西省造纸技术及特种纸品开发重点实验室陕西西安710021 
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摘要:将聚酰胺环氧氯丙烷(PAE)树脂用于聚丙烯腈(PAN)纤维湿法纸张成形过程,以提高纸张强度性能。PAE树脂通过在PAN纤维上附着沉积形成自交联网络,增强纤维间结合。当PAE树脂的用量为0.6%(相对纤维绝干量)时,纸张抗张指数提高21.0%,撕裂指数提高25.8%,伸长率提高34.4%,紧度提高8.2%。通过衰减全反射-傅里叶红外光谱仪(ATR-FTIR)、X射线光电子能谱仪(XPS)及扫描电子显微镜(SEM)分析,证实了PAE树脂分子间通过自交联网络结构,形成叔胺基团,使纤维间结合更为紧密,因而提高纸张的紧度和强度。本研究提出了一种制备具有优异强度性能的PAN纤维纸的方法。
Abstract:Taking advantage of the strengthening mechanism of polyamide epichlorohydrin (PAE), PAE resin reinforced polyacrylonitrile (PAN) fiber sheets were successfully prepared, PAE resin was deposited on PAN fibers to form a “self-crosslinking” networks to enhance the binding of PAN fibers. By adding low amount (0.6 %) of PAE as cross-linkers, the tensile index, tear index, and elongation of the sheet were increased by 21.0%, 25.8%, 34.4%, respectively. Analyses of attenuated totalinternal reflectance fourier transform infrared (ATR-FTIR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM) confirmed the formation of tertiary amine group in PAE-PAN sheets by the self-crosslinking of PAE polymer. This work suggested a promising PAN fiber sheet enhancement strategy by adding PAE resin as self-crosslinking material.
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