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

页码：472 / 477

页数：6

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