NDLI: The variability of mechanical properties and molecular conformation among different spider dragline fibers

Content Provider	Springer Nature Link
Author	Zhang, Lei Han, Leng Wang, Yujun Zhao, Tianfu Bao, Xianxun Nakagaki, Masao
Copyright Year	2013
Abstract	Spider dragline fiber is a high-performance biomaterial that has received much attention. To screen the outstanding spider dragline fibers, the mechanical properties and microstructures of dragline fibers collected from Nephia clavata, Nephia pilipes, Argiope bruennichi and Argiope amoena were investigated. It was found that the mechanical properties of spider dragline fiber were variable. Among the four different species, the larger spiders did not always extrude thicker dragline fibers and produce fibers with the maximum breaking force. The dragline fibers could sustain one to three times the body weight of the spider at a reeling speed of 20 mm/s. N. clavata dragline fiber showed a stronger breaking stress and initial modulus than that of N. pilipes, A. bruennichi and A. amoena. With an increasing reeling speed, the breaking strain decreased; the initial modulus increased in N. clavata, N. pilipes and A. bruennichi, but the breaking stress exhibited a different tendency. The results also revealed that dragline fiber of N. clavata contained the most β-sheet polypeptides and an excellent orientation of β-sheet molecular chains.
Starting Page	1190
Ending Page	1195
Page Count	6
File Format	PDF
ISSN	12299197
Journal	Fibers and Polymers
Volume Number	14
Issue Number	7
e-ISSN	18750052
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-07-31
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Spider dragline fiber Mechanical properties Molecular conformation Variability Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Polymers and Plastics

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