Title :
Thermal properties of LDPE/silica nanocomposites
Author :
Han, Zhi-dong ; Diao, Changjun ; Li, Ying ; Zhao, Hong
Author_Institution :
Harbin Univ. of Sci. & Technol.
Abstract :
Thermal properties of PE/SiO2 nanocomposites are investigated in the paper by Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TG) and differential scanning calorimetry (DSC). Effects of surface treatment of nano-SiO2 on thermal properties of composites are discussed in detail. The results of TG reveal that thermal stabilities of nanocomposites are improved with addition of nano-SiO2 after surface treatment. DSC curves show that the crystallinity is deeply influenced by the presence of SiO2 after surface treatment. The system with higher crystallinity show improved thermal stability. Thermo-oxidative process of PE is delayed by nano-silica after certain surface treatment. PE/SiO2 with well dispersed SiO2 possesses better thermal stability and thermo-oxidative properties.
Keywords :
Fourier transform spectra; crystal structure; differential scanning calorimetry; filled polymers; infrared spectra; nanocomposites; polyethylene insulation; silicon compounds; surface treatment; thermal stability; FTIR spectra; Fourier transform spectra; LDPE/silica nanocomposites; SiO2; crystallinity; differential scanning calorimetry; infrared spectra; surface treatment; thermal gravimetric analysis; thermal stability; Calorimetry; Crystalline materials; Crystallization; Mechanical factors; Nanocomposites; Polymers; Silicon compounds; Surface treatment; Temperature; Thermal stability;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2006 IEEE Conference on
Conference_Location :
Kansas City, MO
Print_ISBN :
1-4244-0546-7
Electronic_ISBN :
1-4244-0547-5
DOI :
10.1109/CEIDP.2006.311931
