The Microstructure of Polyacrylonitrile-Stabilized Fibers

被引：23

作者：

Ge, Heyi ^{[1
]}

Liu, Huashi ^{[1
]}

Chen, Juan ^{[1
]}

Wang, Chengguo ^{[2
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China

[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2009年 / 113卷 / 04期

关键词：

PAN-stabilized fibers; crystallite; skin-core structure; spheres; CARBON-FIBERS; PRECURSOR FIBERS; ACRYLIC FIBERS; MECHANICAL-PROPERTIES; OXIDATION BEHAVIOR; STRUCTURAL-CHANGES; PAN FIBERS; CONVERSION;

D O I：

10.1002/app.30416

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The microstructure of the polyacrylonitrile (PAN)-stabilized fibers was investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and high-resolution transmission electron microscope (HRTEM). XRD analysis indicated that the chemical reactions sped up notably when temperature was above 250 degrees C. The crosssection SEM image of the stabilized fibers presented concentric multilayer morphology. TEM images showed that the lamellar-like skin was compact and the core was disorderly and loose. The vermiculate-like crystallites in the precursor fibers were transferred to spheres during stabilization process. HRTEM images showed that many spheres existed in the stabilized fibers. The exterior of spheres which had annular structure was amorphous phase. The inner of spheres which was not completely stabilized had some crystallite areas. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 2413-2417, 2009

引用

页码：2413 / 2417

页数：5

共 17 条

[1] STRUCTURE OF PAN FIBERS AND ITS RELATIONSHIP TO RESULTING CARBON-FIBER PROPERTIES [J].

BAHL, OP ;

MATHUR, RB ;

KUNDRA, KD .

FIBRE SCIENCE & TECHNOLOGY, 1981, 15 (02) :147-151

[2] HRTEM microstructures of PAN precursor fibers [J].

Bai, Yu-Jun ;

Wang, Cheng-Guo ;

Lun, Ning ;

Wang, Yan-Xiang ;

Yu, Mel-He ;

Zhu, Bo .

CARBON, 2006, 44 (09) :1773-1778

[3] A CRITICAL-REVIEW OF THE STABILIZATION OF POLYACRYLONITRILE [J].

BASHIR, Z .

CARBON, 1991, 29 (08) :1081-1090

[4] CHARACTERIZATION OF ACRYLIC FIBERS USED FOR MAKING CARBON-FIBERS [J].

CHARI, SS ;

BAHL, OP ;

MATHUR, RB .

FIBRE SCIENCE & TECHNOLOGY, 1981, 15 (02) :153-160

[5] Modification of polyacrylonitrile (PAN) carbon fiber precursor via post-spinning plasticization and stretching in dimethyl formamide (DMF) [J].

Chen, JC ;

Harrison, IR .

CARBON, 2002, 40 (01) :25-45

[6] OXIDATION OF ACRYLIC FIBERS FOR CARBON FIBER FORMATION [J].

CLARKE, AJ ;

BAILEY, JE .

NATURE, 1973, 243 (5403) :146-&

[7] The skin-core structure of poly(acrylonitrile-itaconic acid) precursor fibers in wet-spinning [J].

Ge, Heyi ;

Liu, Huashi ;

Chen, Juan ;

Wang, Chengguo .

JOURNAL OF APPLIED POLYMER SCIENCE, 2008, 108 (02) :947-952

[8] THE EFFECT OF HEAT SETTING ON THE STRUCTURE AND MECHANICAL-PROPERTIES OF POLY(ETHYLENE-TEREPHTHALATE) FIBER .1. STRUCTURAL-CHANGES [J].

GUPTA, VB ;

KUMAR, S .

JOURNAL OF APPLIED POLYMER SCIENCE, 1981, 26 (06) :1865-1876

[9] CONVERSION OF ACRYLONITRILE-BASED PRECURSOR FIBERS TO CARBON-FIBERS .1. A REVIEW OF THE PHYSICAL AND MORPHOLOGICAL ASPECTS [J].

JAIN, MK ;

ABHIRAMAN, AS .

JOURNAL OF MATERIALS SCIENCE, 1987, 22 (01) :278-300

[10] STRUCTURAL-CHANGES AND MOLECULAR-MOTION OF POLYACRYLONITRILE FIBERS DURING PYROLYSIS [J].

KO, TH ;

LIN, CH ;

TING, HY .

JOURNAL OF APPLIED POLYMER SCIENCE, 1989, 37 (02) :553-566

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