Dynamic Mechanical Properties of Polyoxymethylene I
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概要
- 論文の詳細を見る
Dynamic mechanical properties of melt grown Polyoxymethylene are studied for specimens with different lamella thicknesses and for irradiated specimens over a range of temperature from -30℃ to 150℃. The apparent relaxation strength of the mechanical α-dispersion is proportional to the lamella thickness. This result qualitatively satisfies the requirements of Okano's theory of crystalline dispersion. The apparent relaxation strength of the α-dispersion for irradiated specimens increases with increasing irradiation dose. This behavior is not due to the growth of lamella thickness with irradiation, but due to other effects, such as the occurrence of lattice defects in crystallites by irradiation. Thus it is impossible to explain this bahavior in terms of Okano's theory. The apparent activation energy of the α-dispersion does not change with γ-irradiation, which indication, which indicates that the irradiation does not essentially influence the molecular mechanism of the dispersion.
- 社団法人応用物理学会の論文
- 1966-09-15
著者
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Hikichi Kunio
Department Of Polymer Science Faculty Of Science Hokkaido University
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Hikichi Kunio
Department Of Physics Faculty Of Science Hokkaido University
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Furuichi Jiro
Department Of High Polymer Science Faculty Of Science Hokkaido University
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Furuichi Jiro
Department Of Polymer Science Faculty Of Science Hokkaido University
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Yokokawa Yukimoto
Department Of Polymer Science Faculty Of Science Hokkaido University
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MIKI Kyosuke
Department of Polymer Science, Faculty of Science, Hokkaido University
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Miki Kyosuke
Department Of Polymer Science Faculty Of Science Hokkaido University
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