ICCAS OpenIR
STUDY ON THE STRUCTURE, COMPOSITION AND PERFORMANCE OF NATURAL POLYMER
Wen, Jing1,2; Wang, Qun1; Jin, Qionghua2; Pan, Zelin1
2010-09-01
Source PublicationFUNCTIONAL MATERIALS LETTERS
ISSN1793-6047
Volume3Issue:3Pages:207-212
AbstractThe sunflower stem core is one kind of natural polymer material. Its structure presents obvious structure gradient from the center to outer part. This article mainly focuses on the relationship between nature of cell walls and the mechanical properties of sunflower stem core. The mechanical properties recorded by the universal testing machine; the cell wall's chemical composition, the cellulose crystallinity and the microfibril angle were measured using the chemical analysis method and X-ray powder diffraction. Research shows that the Young modulus of outer part is nearly 3 times more than that of center part, while the yield strength is 2.5 times more than that of center part. The main components of the sunflower stem core are cellulose, hemicellulose and lignin. The amount of those three components is about 70% of the total dry weight. The contents in the center and outer part are slightly different. The difference of crystallinity and microfibril angle between the center and outer part are quite small, which are 41.39-41.49% and 29.64-27.20%, respectively. Therefore, the results suggested that the nature of cell walls has little influence to the difference of mechanical properties between the center and outer part, and the cell structure is the main reason.
KeywordNatural Polymer Materials Chemical Composition Cellulose Crystallinity Microfibril Angle
DOI10.1142/S1793604710001263
Indexed BySCI ; ISTP
Language英语
WOS IDWOS:000284360300015
PublisherWORLD SCIENTIFIC PUBL CO PTE LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/70484
Collection中国科学院化学研究所
Corresponding AuthorPan, Zelin
Affiliation1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
2.Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China
Recommended Citation
GB/T 7714
Wen, Jing,Wang, Qun,Jin, Qionghua,et al. STUDY ON THE STRUCTURE, COMPOSITION AND PERFORMANCE OF NATURAL POLYMER[J]. FUNCTIONAL MATERIALS LETTERS,2010,3(3):207-212.
APA Wen, Jing,Wang, Qun,Jin, Qionghua,&Pan, Zelin.(2010).STUDY ON THE STRUCTURE, COMPOSITION AND PERFORMANCE OF NATURAL POLYMER.FUNCTIONAL MATERIALS LETTERS,3(3),207-212.
MLA Wen, Jing,et al."STUDY ON THE STRUCTURE, COMPOSITION AND PERFORMANCE OF NATURAL POLYMER".FUNCTIONAL MATERIALS LETTERS 3.3(2010):207-212.
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