| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2008-03-28 |
| タイトル |
|
|
タイトル |
Inorganic Composition and Thermal Properties of Cocoon Fiber |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Inorganic composition |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Thermal properties |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Cocoon shell |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Cocoon fiber |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 作成者 |
Zhang, Han
Magoshi, Jun
Magoshi, Yoshiko
Yoshida, Hirohisa
Chen, Jie Yu
Saiki, Kazuto
|
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The changes of color, size and shape of Bombyx mori cocoon shells were observed from 25°C to 550°C. Only 1 % of the original cocoon shell weight remains as cocoon ash after treatment at 550 °C. The inorganic components were detected in the cocoon ashes such as calcium, potassium, sulfur, magnesium etc., using energy dispersion fluorescent X-ray spectrometer analysis system. The thermal properties of B. mori cocoon shell subjected to heat-treatment were examined by thermogravimetry-differential thermal analysis- Fourier transform infrared absorption spectrometry (TG-DTA-FTIR) and scanning electron microscopy (SEM). Chemical changes started gradually at around 180°C, and a sharp decrease in weight was observed around 280°C by TG curves. The IR bands appearing around 2380 cm-1 (-OH stretching), 1760 cm-1 (C = O stretching), 1503 cm-1 (N-H stretching), 1085 cm-1 (C-N stretching) and 965 cm-1 (-Nit stretching) become stronger as an exothermic reaction around 280°C takes place. This is probably due to the cleaving of the main chain and the accompanying decomposition of the cocoon fibers. Similarly, a SEM micrograph of raw silk fibers treated at 300°C shows a microtubule in the middle of the fibers of about 25 μm diameter. This suggests that the thermal reactions starts in the middle of the fiber and forms a microtubule. |
|
言語 |
en |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 書誌情報 |
en : International Journal of the Society of Materials Engineering for Resources
巻 10,
号 1,
p. 113-116,
発行日 2002-03-01
|
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13479725 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA1095475X |
| 出版者 |
|
|
出版者 |
The Society of Materilas Engineering for resources of Japan |
|
言語 |
en |
| 関連情報 |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.5188/ijsmer.10.113 |
ijsmer10-1r.pdf (1.7 MB)
