Jpn. J. Appl. Phys. 13 (1974) pp. 1050-1057  |Next Article|  |Table of Contents|
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Anisotropic Structure of Polyethylene Fiber and Its Related Properties

Yoshihito Ohde

(Received November 13, 1973)

Direct observation of internal structure of a bulky polyethylene fiber was made with an electron microscope using selective etching technique by fuming nitric acid. Striations with a period of 230 Å making an angle of 45 deg. with the fiber axis, and wavy striations with a period of 320 Å perpendicular to the fiber axis, are observed on different fractured surfaces perpendicular to each other. Fibrils of 5000 Å in width are also seen. These values are consistent with a model of double textured fiber studied by X-ray scattering methods. Amorphous tie molecules between lamellae are oriented perpendicularly to the fiber axis, and parallel to the plane of fiber strip. Tie molecules give the anisotropic structure and broad range of melting of the fibers.

URL: http://jjap.jsap.jp/link?JJAP/13/1050/
DOI: 10.1143/JJAP.13.1050

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