Amine-Terminated Highly Cross-Linked Polyphosphazene-Functionalized Carbon Nanotube-Reinforced Lignin-Based Electrospun Carbon Nanofibers,ACS Sustainable Chemistry & Engineering

当前位置： X-MOL 学术 › ACS Sustain. Chem. Eng. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Amine-Terminated Highly Cross-Linked Polyphosphazene-Functionalized Carbon Nanotube-Reinforced Lignin-Based Electrospun Carbon Nanofibers
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-01-23 , DOI: 10.1021/acssuschemeng.9b05940
Sihui Liu ₁ , Xiangtian Cheng ₁ , Zhuojian He ₁ , Jinghong Liu ₁ , Xiaoqing Zhang ₁ , Jinbao Xu ₁ , Caihong Lei ₁

Affiliation

To improve the mechanical properties of lignin-based carbon nanofibers, the amine-terminated highly cross-linked polyphosphazene-functionalized carbon nanotubes ([email protected]) were successfully synthesized by in situ polycondensation and deposition using hexa-(4-aminophenoxy) cyclotriphosphazene (HACP) and hexachlorocyclotriphosphazene (HCCP) as monomers. The thickness of the amine-terminated polyphosphazene layer coated on the carbon nanotubes was about 12.7 nm. The strong interaction of hydrogen bonding between [email protected] and lignin facilitated the formation of good fiber morphology at various stages. The thin polyphosphazenes layer improved the thermal stability of lignin/[email protected] nanofiber mats and promoted the carbonization of lignin. The tensile test results showed that significant enhancements of tensile strength and tensile modulus were achieved when 1.0 wt % [email protected] was introduced to lignin. X-ray diffraction (XRD) and Raman spectroscopy studies suggested that the number of graphite crystallites and crystallite size increased after incorporation of [email protected] This is a promising method to enhance the mechanical properties of lignin-based carbon nanofibers and prepare biobased carbon nanofibers for a wider application.

中文翻译：

胺端接的高度交联的聚磷腈官能化碳纳米管增强木质素基电纺碳纳米纤维

为了改善木质素基碳纳米纤维的机械性能，使用六-（4-氨基苯氧基）环三磷腈原位缩聚和沉积方法成功地合成了胺端基高度交联的聚磷腈官能化碳纳米管（[受电子邮件保护]）（ HACP）和六氯环三磷腈（HCCP）作为单体。涂覆在碳纳米管上的胺封端的聚磷腈层的厚度为约12.7nm。[电子邮件保护的]和木质素之间氢键的强相互作用促进了在各个阶段形成良好的纤维形态。聚磷腈薄层提高了木质素/ [受电子邮件保护的]纳米纤维垫的热稳定性，并促进了木质素的碳化。拉伸试验结果表明，当将1.0重量％[电子邮件保护的]引入木质素中时，拉伸强度和拉伸模量得到了显着的提高。X射线衍射（XRD）和拉曼光谱研究表明，掺入[电子邮件保护]后，石墨微晶的数量和微晶尺寸增加。这是增强木质素基碳纳米纤维的机械性能并制备生物基碳纳米纤维的有前途的方法为更广泛的应用。

更新日期：2020-01-24

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11