Structural and mechanical properties of cellulose acetate/graphene hybrid nanofibers: Spectroscopic investigations

被引：68
作者：
Gopiraman, M. [1 ]
Fujimori, K. [1 ]
Zeeshan, K. [1 ]
Kim, B. S. [2 ]
Kim, I. S. [1 ]
机构：
[1] Interdisciplinary Grad Sch Sci & Technol, Nano Fus Technol Res Grp, Ueda, Nagano 3860015, Japan
[2] Chonbuk Natl Univ, Dept Organ Mat & Fiber Engn, Jeonju Si 561756, Jeollabuk Do, South Korea
来源：
EXPRESS POLYMER LETTERS | 2013年 / 7卷 / 06期
关键词：
mechanical properties; nanofiber; graphene; molecular interactions; polymer composites; BOMBYX-MORI SILK; ELASTIC PROPERTIES; COMPOSITE FIBERS; ACETYLATION; PERFORMANCE; DISPERSION; STRENGTH; BEHAVIOR;
D O I：
10.3144/expresspolymlett.2013.52
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Cellulose acetate/graphene (CA/graphene) and cellulose acetate/graphene-COOH (CA/graphene-COOH) hybrid nanofibers were fabricated via electrospinning technique, and their morphologies, crystallinity and mechanical properties were investigated. The added amounts of graphene and graphene-COOH were varied from 0.5 to 5.0 wt%. The crystal structures and morphologies of the resultant hybrid nanofibers were investigated by wide angle X-ray diffraction (WAXD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively. Graphene-COOH incorporated CA nanofiber mats showed higher Young's modulus of about 910 MPa among than those of CA/graphene nanofibers, which is due to molecular interactions between -COOH groups in acid-treated graphene and C=O groups in CA via hydrogen bonding. This specific interaction was demonstrated by spectroscopic studies (Raman and Fourier transform infrared (FT-IR) spectroscopies).
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页码：554 / 563
页数：10
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