|
二维码(扫一下试试看!) |
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)。 |
|
摘要点击次数: 7237 |
全文下载次数: 12 |
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. |
查看全文 HTML 查看/发表评论 下载PDF阅读器 |