TY - JOUR
T1 - Measurement of Thermal Properties of Triticale Starch Films Using Photothermal Techniques
AU - Correa-Pacheco, Z. N.
AU - Cruz-Orea, A.
AU - Jiménez-Pérez, J. L.
AU - Solorzano-Ojeda, S. C.
AU - Tramón-Pregnan, C. L.
N1 - Publisher Copyright:
© 2014, Springer Science+Business Media New York.
PY - 2015/10/30
Y1 - 2015/10/30
N2 - Nowadays, several commercially biodegradable materials have been developed with mechanical properties similar to those of conventional petrochemical-based polymers. These materials are made from renewable sources such as starch, cellulose, corn, and molasses, being very attractive for numerous applications in the plastics, food, and paper industries, among others. Starches from maize, rice, wheat, and potato are used in the food industry. However, other types of starches are not used due to their low protein content, such as triticale. In this study, starch films, processed using a single screw extruder with different compositions, were thermally and structurally characterized. The thermal diffusivity, thermal effusivity, and thermal conductivity of the biodegradable films were determined using photothermal techniques. The thermal diffusivity was measured using the open photoacoustic cell technique, and the thermal effusivity was obtained by the photopyroelectric technique in an inverse configuration. The results showed differences in thermal properties for the films. Also, the films microstructures were observed by scanning electron microscopy, transmission electron microscopy, and the crystalline structure determined by X-ray diffraction.
AB - Nowadays, several commercially biodegradable materials have been developed with mechanical properties similar to those of conventional petrochemical-based polymers. These materials are made from renewable sources such as starch, cellulose, corn, and molasses, being very attractive for numerous applications in the plastics, food, and paper industries, among others. Starches from maize, rice, wheat, and potato are used in the food industry. However, other types of starches are not used due to their low protein content, such as triticale. In this study, starch films, processed using a single screw extruder with different compositions, were thermally and structurally characterized. The thermal diffusivity, thermal effusivity, and thermal conductivity of the biodegradable films were determined using photothermal techniques. The thermal diffusivity was measured using the open photoacoustic cell technique, and the thermal effusivity was obtained by the photopyroelectric technique in an inverse configuration. The results showed differences in thermal properties for the films. Also, the films microstructures were observed by scanning electron microscopy, transmission electron microscopy, and the crystalline structure determined by X-ray diffraction.
KW - Photothermal techniques
KW - Scanning electron microscopy (SEM)
KW - Starch
KW - Transmission electron microscopy (TEM)
KW - Triticale
KW - X-ray diffraction (XRD)
UR - http://www.scopus.com/inward/record.url?scp=84931570180&partnerID=8YFLogxK
U2 - 10.1007/s10765-014-1771-5
DO - 10.1007/s10765-014-1771-5
M3 - Artículo
SN - 0195-928X
VL - 36
SP - 873
EP - 879
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
IS - 5-6
ER -