The effect of polar aluminium trihydrate molecules on the dielectric relaxations of low-density polyethylene
Апстракт
The effects of high concentrations of polar aluminum trihydrate (ATH) molecules on the dielectric relaxations of low-density polyethylene (LDPE) have been studied by dielectric loss (tan delta) measurements in the temperature range from 25 to 370 K. It was found that there are strong effects of polar ATH molecules on alpha and beta relaxation peaks, but no effect on the gamma relaxation peak, which is usually attributed to the localized conformational changes such as crankshaft or kink motion of the main chain in amorphous-phase surface layers of LDPE. Both strong alpha and beta peaks are shifted to lower temperatures with increasing concentration of ATH in the polymer. This behavior of alpha and beta dielectric relaxations of LDPE was related to the morphological changes in the amorphous and the crystal phase of highly doped semicrystalline polymer.
Кључне речи:
dielectric relaxation / flame retardant polyethylene / polyethyleneИзвор:
Materials Science Forum, 2004, 453-454, 505-508Напомена:
- Progress in Advanced Materials and Processes, 5th Conference of the Yugoslav-Materials-Research-Society (Yu-MRS 2003), Sep 15-19, 2003, Herceg Novi, Yugoslavia
DOI: 10.4028/www.scientific.net/MSF.453-454.505
ISSN: 0255-5476
WoS: 000221535700083
Scopus: 2-s2.0-3142728623
Колекције
Институција/група
VinčaTY - JOUR AU - Miličević, Dejan S. AU - Suljovrujić, Edin H. AU - Kostoski, Dušan AU - Spasovic, S AU - Novaković, L PY - 2004 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6442 AB - The effects of high concentrations of polar aluminum trihydrate (ATH) molecules on the dielectric relaxations of low-density polyethylene (LDPE) have been studied by dielectric loss (tan delta) measurements in the temperature range from 25 to 370 K. It was found that there are strong effects of polar ATH molecules on alpha and beta relaxation peaks, but no effect on the gamma relaxation peak, which is usually attributed to the localized conformational changes such as crankshaft or kink motion of the main chain in amorphous-phase surface layers of LDPE. Both strong alpha and beta peaks are shifted to lower temperatures with increasing concentration of ATH in the polymer. This behavior of alpha and beta dielectric relaxations of LDPE was related to the morphological changes in the amorphous and the crystal phase of highly doped semicrystalline polymer. T2 - Materials Science Forum T1 - The effect of polar aluminium trihydrate molecules on the dielectric relaxations of low-density polyethylene VL - 453-454 SP - 505 EP - 508 DO - 10.4028/www.scientific.net/MSF.453-454.505 ER -
@article{ author = "Miličević, Dejan S. and Suljovrujić, Edin H. and Kostoski, Dušan and Spasovic, S and Novaković, L", year = "2004", abstract = "The effects of high concentrations of polar aluminum trihydrate (ATH) molecules on the dielectric relaxations of low-density polyethylene (LDPE) have been studied by dielectric loss (tan delta) measurements in the temperature range from 25 to 370 K. It was found that there are strong effects of polar ATH molecules on alpha and beta relaxation peaks, but no effect on the gamma relaxation peak, which is usually attributed to the localized conformational changes such as crankshaft or kink motion of the main chain in amorphous-phase surface layers of LDPE. Both strong alpha and beta peaks are shifted to lower temperatures with increasing concentration of ATH in the polymer. This behavior of alpha and beta dielectric relaxations of LDPE was related to the morphological changes in the amorphous and the crystal phase of highly doped semicrystalline polymer.", journal = "Materials Science Forum", title = "The effect of polar aluminium trihydrate molecules on the dielectric relaxations of low-density polyethylene", volume = "453-454", pages = "505-508", doi = "10.4028/www.scientific.net/MSF.453-454.505" }
Miličević, D. S., Suljovrujić, E. H., Kostoski, D., Spasovic, S.,& Novaković, L.. (2004). The effect of polar aluminium trihydrate molecules on the dielectric relaxations of low-density polyethylene. in Materials Science Forum, 453-454, 505-508. https://doi.org/10.4028/www.scientific.net/MSF.453-454.505
Miličević DS, Suljovrujić EH, Kostoski D, Spasovic S, Novaković L. The effect of polar aluminium trihydrate molecules on the dielectric relaxations of low-density polyethylene. in Materials Science Forum. 2004;453-454:505-508. doi:10.4028/www.scientific.net/MSF.453-454.505 .
Miličević, Dejan S., Suljovrujić, Edin H., Kostoski, Dušan, Spasovic, S, Novaković, L, "The effect of polar aluminium trihydrate molecules on the dielectric relaxations of low-density polyethylene" in Materials Science Forum, 453-454 (2004):505-508, https://doi.org/10.4028/www.scientific.net/MSF.453-454.505 . .