2006年7月
Crystallization and stress relaxation in highly stretched samples of natural rubber and its synthetic analogue
MACROMOLECULES
- ,
- ,
- ,
- ,
- ,
- ,
- 巻
- 39
- 号
- 15
- 開始ページ
- 5100
- 終了ページ
- 5105
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/ma060407+
- 出版者・発行元
- AMER CHEMICAL SOC
Vulcanizates of natural rubber (NR) and its synthetic analogue (IR) were quickly stretched to 6 times the original length. The post stretch relaxation of tensile stress and the development of strain-induced crystallization (SIC) were studied by simultaneous measurements of the stress and the diffraction intensities using the synchrotron X-ray source. In the range of 8 s, NR crystallized much faster than IR. Accordingly, the origin of the superior toughness of NR was thought to come from the ability of rapid SIC. Time constants of the post-stretch crystallization were estimated from the X-ray study. Then the crystallization time constants were used to decompose the contribution of SIC from the total magnitude of the post-stretch relaxation. The contribution of SIC was dominant for the total magnitude of the post-stretch relaxation during several seconds.
- リンク情報
- ID情報
-
- DOI : 10.1021/ma060407+
- ISSN : 0024-9297
- J-Global ID : 200902213910290920
- Web of Science ID : WOS:000239086200025