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搓丝处理后棉秆纤维束的形态特征及力学性能(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年05期
Page:
108-112
Column:
研究论文
publishdate:
2013-09-30

Article Info:/Info

Title:
Morphological and mechanical properties of cotton stalk fiber bundle through rub silk process
Article ID:
1000-2006(2013)05-0108-05
Author(s):
LIN Tao GUO Wenjing GAO Li FANG Lu WANG Zheng*
Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
Keywords:
cotton stalk fiber bundle tub silk processmorphological structures mechanical properties
Classification number :
TS10192
DOI:
10.3969/j.issn.1000-2006.2013.05.021
Document Code:
A
Abstract:
The morphological structure, dimensions and mechanical properties of fiber bundle in cotton stalk epidermis and xylem were investigated using optical microscope and fiber tensile strength tester after they were disposed by rub silk process. The length, width, the radio and the crosssectional areain cotton stalk epidermis were 2512 mm, 2019 μm, 15878, and 42 11969 μm2, respectively. The length, the width, the radio, and the crosssectional areain cotton stalk xylem were 1357 mm, 25336 μm, 7688, and 69 24616 μm2, respectively. The length and radio of the fiber bundle in cotton stalk epidermis were lower than that in the xylem. The width and rosssectional area in cotton stalk epidermis were higher than the area in the xylem. The tensile stress, elastic modulus and elongation of fiber bundle in epidermis were 6073 MPa, 217 GPa, and 43, and those in the xylem were 4258 MPa, 133 GPa, and 311, respectively. Fiber bundle in epidermis has a better flexibility because the tensile stress, elastic modulus and elongation in cotton stalk epidermis were higher than those in the xylem. The mechanical property of cotton stalk was poorer, compared with other plant fibers. The mechanical property of fiber bundle in epidemic was lower than single cotton stalk fiber. The results provided the essential data for cotton stalk fiber used in plant fiber composites as the reinforced materials.

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Last Update: 2013-09-30