Effect of Carboxylic Acid Group of Functionalized Carbon Nanotubes on Properties of Electrospun Polyacrylonitrile (PAN) Fibers

被引：5
|
作者：
Park, Ok-Kyung [1 ,2 ]
Kim, Ju-Hyung [1 ,3 ]
Lee, Sungho [1 ]
Lee, Joong Hee [2 ]
Chung, Yongsik [3 ]
Kim, Junkyung [1 ]
Ku, Bon-Cheol [1 ]
机构：
[1] Korea Inst Sci & Technol, Inst Adv Composites Mat, Bongdong Eup 565902, Jeollabuk Do, South Korea
[2] Chonbuk Natl Univ, Dept BIN Fus Technol, Jeonju 561756, Jeollabuk Do, South Korea
[3] Chonbuk Natl Univ, Dept Organ Mat & Fiber Engn, Jeonju 561756, Jeollabuk Do, South Korea
来源：
POLYMER-KOREA | 2011年 / 35卷 / 05期
关键词：
polyacrylonitrile; carbon nanotubes; carbon fibers; electrospinning; mechanical properties; STABILIZATION; YARNS;
D O I：
10.7317/pk.2011.35.5.472
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
To study the effects of the acid group of functionalized MWNT (multiwalled carbon nanotube) on the thermal and mechanical properties of polyacrylonitrile (PAN) nanofibers, acid (H2SO4/HNO3) treated MWNT (O-MWNT) were further functionalized by diazonium salt reaction with 5-aminoisophthalic acid (IPA). Compared to O-MWNT, IPA-MWNT with isophthalic acid group showed a better dispersion stability in polar solvents and IPA-MWNT/PAN composite film displayed lower heat of reaction (Delta H) than that of homo PAN when stabilized under air atmosphere. The continuous electrospun fibers were prepared using a conductive water bath. PAN fibers containing 1 wt% of IPA-MWNT showed an increase of tensile strength by 100% and tensile modulus by 240% compared to the PAN fibers without IPA-MWNT.
引用
收藏
页码：472 / 477
页数：6
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