Dielectric Relaxation Phenomena of Polylactic Acid with β-Crystalline Chitin
Joint Authors
Fujita, Shigetaka
Shinyama, Katsuyoshi
Oi, Toru
Source
International Journal of Polymer Science
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-23
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
β-crystalline chitin was added to polylactic acid (PLA), and this PLA was then heat-treated at 100°C for one minute.
The crystallinity of the heat-treated PLA increased to more than 40%, and its crystallization speed also increased significantly.
The temperature dependency of these materials’ relative permittivity (εr′) and relative dielectric loss factor (εr′′) was also examined.
The dielectric absorption peak value in εr′′ curve of the PLA to which chitin was added and was smaller than that of PLA without chitin.
Additionally, the Havriliak-Negami relaxation function was used to produce approximation curves for the frequency dependency of εr′ and εr′′ of chitin with PLA added at 80°C.
As a result, the relaxation strength (Δε) of the chitin with PLA added was smaller than that of the PLA without chitin, and the relaxation time (τ) of the chitin with PLA added was approximately 2.5 times larger than that of the PLA without chitin.
American Psychological Association (APA)
Shinyama, Katsuyoshi& Oi, Toru& Fujita, Shigetaka. 2012. Dielectric Relaxation Phenomena of Polylactic Acid with β-Crystalline Chitin. International Journal of Polymer Science،Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-468238
Modern Language Association (MLA)
Shinyama, Katsuyoshi…[et al.]. Dielectric Relaxation Phenomena of Polylactic Acid with β-Crystalline Chitin. International Journal of Polymer Science No. 2012 (2012), pp.1-5.
https://search.emarefa.net/detail/BIM-468238
American Medical Association (AMA)
Shinyama, Katsuyoshi& Oi, Toru& Fujita, Shigetaka. Dielectric Relaxation Phenomena of Polylactic Acid with β-Crystalline Chitin. International Journal of Polymer Science. 2012. Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-468238
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468238