کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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820587 | 1469549 | 2013 | 9 صفحه PDF | دانلود رایگان |

To investigate the effects of crystalline forms of iron (III) oxide and the bound between γ-Fe2O3 and carbon nanotubes (CNTs) on the thermal oxidative stability of silicone rubber, a series of silicone rubber based composites filled with CNTs, α-Fe2O3, γ-Fe2O3, a mixture of γ-Fe2O3 and CNTs, and γ-Fe2O3 modified CNTs (γ-Fe2O3 − CNTs) were prepared, respectively. Characterizations of the additives and the composites were performed by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The results indicated that the presence of CNTs affected the crystalline form of attaching Fe2O3 which was changed from α to γ. γ-Fe2O3 also got a enlarged special surface area in the γ-Fe2O3 − CNTs. γ-Fe2O3 was a more effective thermal resistant additive than α-Fe2O3 due to the changes of crystalline form during the thermal aging. A synergy was found in the γ-Fe2O3 − CNTs and much more changes of valence made γ-Fe2O3 − CNTs as a more effective thermal resistant additive.
Journal: Composites Science and Technology - Volume 76, 4 March 2013, Pages 52–60