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Change in fine structure of nylon 6 gut yarn in twisting, annealing, and untwisting processes. II. Observation by the microbeam X‐ray technique
Author(s) -
Tsujimoto Ishio,
Kurokawa Teruo,
Takahashi Toshisada,
Sakurai Kensuke
Publication year - 1979
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1979.070241110
Subject(s) - microbeam , perpendicular , materials science , twist , annealing (glass) , collimator , composite material , fiber , radius , yarn , crystallography , x ray , optics , geometry , physics , chemistry , mathematics , computer security , computer science
The local structure in the radius direction perpendicular to the fiber axis in nylon 6 gut yarn subjected to twisting and heat setting was investigated by the microbeam x‐ray technique. The observations revealed that the b ‐axis (or chain axis) in a crystal gradually inclines within a tangential plane parallel to the fiber axis and away from it with increase of twist, not only in the outer region but also in the center region, i.e., in the vicinity of the center axis. This local behavior of the b ‐axis could not be distinguished in the previous work, 1 when the usual collimator was employed in the WAXD technique.