Effect and mechanism of iron oxide modified carbon nanotubes on thermal oxidative stability of silicone rubber

2014 ◽  
Vol 99 ◽  
pp. 1-7 ◽  
Author(s):  
Xiang Zhang ◽  
Qiang Zhang ◽  
Junping Zheng
Keyword(s):  
Carbon Nanotubes ◽  
Iron Oxide ◽  
Oxidative Stability ◽  
Silicone Rubber ◽  
Thermal Oxidative Stability ◽  
Modified Carbon Nanotubes

scholarly journals Enhanced thermal oxidative stability of silicone rubber by using cerium-ferric complex oxide as thermal oxidative stabilizer

e-Polymers ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 257-267 ◽  
Author(s):  
Lei Wu ◽  
Yong Zhang
Keyword(s):  
Oxidative Stability ◽  
Silicone Rubber ◽  
Photoelectron Spectroscopy ◽  
Sol Gel ◽  
Complex Oxides ◽  
Complex Oxide ◽  
Molar Ratio ◽  
X Ray ◽  
Thermal Oxidative Stability ◽  
Fe Complex

AbstractCerium (Ce)-ferric (Fe) complex oxides were prepared via a citric acid sol-gel process, and used as thermal oxidative stabilizers for silicone rubber (SR). The oxides were characterized by X-ray diffraction and Raman spectroscopy. The Ce/Fe molar ratio in Ce-Fe complex oxides significantly influenced the thermal oxidative stability of SR. After aging at 300°C for 24 h, SR filled with 4 phr Ce-Fe complex oxide with a Ce/(Ce+Fe) molar ratio of 0.8 (CeFeO-0.8) exhibited excellent thermal oxidative stability, retaining 56.8% and 54.3% of its original tensile strength and elongation at break, respectively. Some Ce3+ and Fe2+ ions were detected in aged SR composites. Ce3+/Ce4+ and Fe2+/Fe3+ molar ratios in SR/CeFeO-0.8 were less than that in SR/CeO2 and SR/Fe2O3 composites, respectively, as detected by X-ray photoelectron spectroscopy. It implies rapid re-oxidations of Fe2+ and Ce3+ occurred in SR/CeFeO-0.8, enhancing the capacity of CeFeO-0.8 to capture radicals during thermal aging.

Hindered phenol grafted carbon nanotubes for enhanced thermal oxidative stability of polyethylene

Polymer ◽  
2013 ◽  
Vol 54 (3) ◽  
pp. 1167-1176 ◽  
Author(s):  
Xiaomei Shi ◽  
Jingdai Wang ◽  
Binbo Jiang ◽  
Yongrong Yang
Keyword(s):  
Carbon Nanotubes ◽  
Oxidative Stability ◽  
Thermal Oxidative Stability ◽  
Hindered Phenol
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