Thermal properties of LDPE/silica nanocomposites

Author

Han, Zhi-dong ; Diao, Changjun ; Li, Ying ; Zhao, Hong

Author_Institution

Harbin Univ. of Sci. & Technol.

fYear

2006

fDate

15-18 Oct. 2006

Firstpage

310

Lastpage

312

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CEIDP.2006.311931

Filename

4105432