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Title
Japanese: 
English:Small-Angle X-ray Scattering Study on the Tensile Fracture Process of Poly(ethylene terephthalate) Fiber 
Author
Japanese: 塩谷 正俊, Tomomi Kawazoe, Ryota Okazaki, 末井 匠, 櫻井 伸一, 山本 勝宏, 鞠谷 雄士.  
English: Masatoshi Shioya, Tomomi Kawazoe, Ryota Okazaki, Takumi Suei, Shinichi Sakurai, Katsuhiro Yamamoto, Takeshi Kikutani.  
Language English 
Journal/Book name
Japanese: 
English:Macromolecules 
Volume, Number, Page Volume 41    No. 13    pp. 4758-4765
Published date July 2008 
Publisher
Japanese: 
English:ACS PUBLICATIONS 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1021/ma7027616
Abstract Time-resolved small-angle X-ray scattering measurements using synchrotron radiation have been conducted during tensile deformation of a poly(ethylene terephthalate) fiber at room temperature. The marked change of the scattering patterns from the layer-line scattering with a four-spot nature to the layer-line scattering concentrated on the meridian at small fiber strains could be interpreted as the decrease in the disorder of the long-period structures without assuming the tilted lamella stack. The microvoids formed at a large fiber strain were characterized by applying a method proposed by the present author to the equatorial streak and the relative microvoid volume fraction, size and shape of the microvoid cross sections and longitudinal size of the microvoids were determined. It was inferred that the microvoids were formed in the regions which linked long-period structures, depending on the properties of these regions and the formation of microvoids contributed to the fracture toughness of the fiber.

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