TY - JOUR
T1 - Activation energy determination in multi-frequency dynamic molecular interaction analysis of PEG 4000-Cristobalite composites using DMA
AU - Fauziyah, N. A.
AU - Fadly, T. A.
AU - Rosyidi, A.
AU - Mashuri,
AU - Pratapa, S.
N1 - Funding Information:
The author acknowledges to Ministry of Research Technology and High Education of the Republic of Indonesia and LPPM ITS to support finance through program PUPT-2016 No. 01751/IT2.11/PN.08/2016. Also a great thanks to Departement of Physics, Institute of Technology Sepuluh Nopember (ITS) to support this work.
PY - 2017
Y1 - 2017
N2 - Degradation activation energy of PEG-Cristobalite composites was investigated using Dynamic Mechanical Analysis (DMA) instrument at multi-frequency shear mode. The applied frequencies were 1, 10, 100, and 200 Hz. The cristobalite of as much as 20% and 40% by weight was used as the filler of the composites, while PEG 4000 was the matrix. Results showed that additional of cristobalite improved the storage modulus (G') of the composites almost five times of the pure PEG 4000. Moreover, such addition and higher applied frequency shifted glass transition temperature (Tg) to higher values. Furthermore, the multi-frequency measurement provided the degradation activation energy of the samples, where the highest value was reached by the 40% sample, i.e. 571.4 kJ. This result implied that there was a certain energetic barrier from the filler that the structural units of polymer need to surmount collectively before its viscous flow occured.
AB - Degradation activation energy of PEG-Cristobalite composites was investigated using Dynamic Mechanical Analysis (DMA) instrument at multi-frequency shear mode. The applied frequencies were 1, 10, 100, and 200 Hz. The cristobalite of as much as 20% and 40% by weight was used as the filler of the composites, while PEG 4000 was the matrix. Results showed that additional of cristobalite improved the storage modulus (G') of the composites almost five times of the pure PEG 4000. Moreover, such addition and higher applied frequency shifted glass transition temperature (Tg) to higher values. Furthermore, the multi-frequency measurement provided the degradation activation energy of the samples, where the highest value was reached by the 40% sample, i.e. 571.4 kJ. This result implied that there was a certain energetic barrier from the filler that the structural units of polymer need to surmount collectively before its viscous flow occured.
UR - http://www.scopus.com/inward/record.url?scp=85041737376&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/817/1/012020
DO - 10.1088/1742-6596/817/1/012020
M3 - Conference article
AN - SCOPUS:85041737376
SN - 1742-6588
VL - 817
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012020
T2 - 2nd International Symposium on Frontier of Applied Physics, ISFAP 2016
Y2 - 3 October 2016 through 5 October 2016
ER -