各種溶媒中におけるNBRの溶媒き裂成長速度
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概要
- 論文の詳細を見る
Experiments on the solvent crack growth of rubber were attempted in various solvents such as a romatics, esters and ketons. The rate of crack growth shows a linear relation against the extension and this rate differs with solvents, but the critical extension shows a constant value in spite of the difference in solvent. The crack growth rates tend to decrease with an increase of the molecular volume of the solvent. When the rate of crack growth is plotted against the diffusion constant of solvent into rubber, lines with different gradients were obtained for ketones, esters and aromatics. However, when the crack growth rate was plotted against the swelling rate of rubber, the plots became a straight line.<BR>Therefore, it was found that the rate of crack grow h depended on the diffusing time of a definite volume of solvent into rubber.
- 日本ゴム協会の論文