ICCAS OpenIR
Effect of Draw Ratio on the Morphology, Orientation and Properties of Biphenyl-type Polyimide Fibers
Zhang Chun-Ling2,3; Qiu Xue-Peng1; Xue Yan-Hu2; Gao Lian-Xun1,2; Ding Meng-Xian1; Ji Xiang-Ling2
2011-04-10
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume32Issue:4Pages:952-956
AbstractNovel biphenyl-containing polyimide (PI) solution based on pyromellitic dianhydride (PMDA)/3,3',4,4'-biphenyl-tetracarboxylic dianhydride(BPDA)/O-tolidine (OTOL) were synthesized via co-polymerization. Its PI fibers were produced through dry-jet wet-spinning technique. These fibers were characterized with field emission scanning electron microscopy (FESEM), wide-angle X-ray diffraction (WAXD), fiber mechanical property tester, dynamic mechanical analyzer(DMA) and thermogravimetric analyzer(TGA). Particularly, effects of draw ratio on morphology, orientation, mechanical properties and thermal properties of PI fibers were discussed. PI fibers have smooth surface, relatively uniform diameter, and skin-core structure in cross-section. The diameter and filament of PI fibers decrease and the degree of orientation increases with draw ratio. Crystallinity of these fibers is very low. The tensile strength and tensile modulus of the PI fibers can reach 2.95 and 100.0 GPa when draw ratio is 2.8. Generally, 10% weight loss of these PI fibers corresponds to temperatures above 580 degrees C and it indicates that these fibers possess excellent thermal stability under nitrogen atmosphere two relaxations above room temperature can be found in DMA curves. The glass transition temperature( T-g) of PI fibers is above 340 degrees C
KeywordPolyimide Fiber Morphology Orientation Mechanical Property
Indexed BySCI
Language英语
WOS IDWOS:000290076100028
PublisherHIGHER EDUCATION PRESS
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72782
Collection中国科学院化学研究所
Corresponding AuthorQiu Xue-Peng
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, Polymer Composite Engn Lab, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
3.Jilin Univ, Key Lab Automobile Mat, Minist Educ, Coll Mat Sci & Engn, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Zhang Chun-Ling,Qiu Xue-Peng,Xue Yan-Hu,et al. Effect of Draw Ratio on the Morphology, Orientation and Properties of Biphenyl-type Polyimide Fibers[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2011,32(4):952-956.
APA Zhang Chun-Ling,Qiu Xue-Peng,Xue Yan-Hu,Gao Lian-Xun,Ding Meng-Xian,&Ji Xiang-Ling.(2011).Effect of Draw Ratio on the Morphology, Orientation and Properties of Biphenyl-type Polyimide Fibers.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,32(4),952-956.
MLA Zhang Chun-Ling,et al."Effect of Draw Ratio on the Morphology, Orientation and Properties of Biphenyl-type Polyimide Fibers".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 32.4(2011):952-956.
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