Effect of gamma irradiation on thermophysical properties of plasticized starch and starch surfactant films
PBN-AR
Instytucja
Instytut Chemii i Techniki Jądrowej
Informacje podstawowe
Główny język publikacji
en
Czasopismo
RADIATION PHYSICS AND CHEMISTRY
ISSN
0969-806X
EISSN
Wydawca
PERGAMON-ELSEVIER SCIENCE LTD
DOI
URL
Rok publikacji
2014
Numer zeszytu
Strony od-do
18-22
Numer tomu
99
Liczba arkuszy
Autorzy
(liczba autorów: 3)
Pozostali autorzy
+ 2
Słowa kluczowe
en
starch films,
gamma irradiation,
surfactant,
thermophysical properties,
glass transition
Streszczenia
Język
EN
Treść
In this work the influence of gamma irradiation on the thermomechanical properties of the films formed in potato starch–glycerol and potato starch–glycerol–surfactant systems were examined by Dynamic Mechanical Analysis, DMA, and Differential Scanning Calorimetry, DSC, and the results were correlated to the amount of the volatile fraction in the films. The starch was irradiated with a dose of 30 kGy. The films were prepared by casting from solutions with addition of 0, 20 and 30 wt% of glycerol. Two endotherms attributed to glass transitions were observed in water or glycerol plasticised samples, the first one shifting to higher temperature after irradiation. A similar shift was observed after irradiation of films prepared from starch–sodium laurate and starch–sodium palmitate systems, while a decrease in glass transition temperature was observed in the case of starch–cetyltrimethylammonium bromide films. Small differences in the content of the volatile fraction reached after the appropriate conditioning had no impact on the direction of temperature shift of Tg observed after irradiation.
Cechy publikacji
artykuł oryginalny, recenzowany
Inne
System-identifier
PX-5698a4bb810641ecf919c0bc
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