Mechanical and tribological properties of natural rubber reinforced with carbon blacks and Al2O3 nanoparticles

► Al2O3/CBs/NR show synergistic effect in mechanical properties and wear resistance. ► The tensile properties and tearing properties of nano-Al2O3/CBs/NR are improved. ► The optimum content of Al2O3 nanoparticles for tensile strength is 1–3phr. ► The abrasion resistance of nano-Al2O3/CBs/NR nanocomp...

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Bibliographic Details
Published in:Materials in engineering 2013-08, Vol.49, p.336-346
Main Authors: Fu, Ji-Fang, Yu, Wen-Qi, Dong, Xing, Chen, Li-Ya, Jia, Hai-Sen, Shi, Li-Yi, Zhong, Qing-Dong, Deng, Wei
Format: Article
Language:English
Subjects:
Abrasion resistance
Al2O3 nanoparticles
Aluminum oxide
Carbon black
Nanocomposites
Nanoparticles
Nanostructure
Natural rubber
Reinforcement
Thermal stability
Tire tread
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Summary:► Al2O3/CBs/NR show synergistic effect in mechanical properties and wear resistance. ► The tensile properties and tearing properties of nano-Al2O3/CBs/NR are improved. ► The optimum content of Al2O3 nanoparticles for tensile strength is 1–3phr. ► The abrasion resistance of nano-Al2O3/CBs/NR nanocomposites is improved. ► NR containing CBs and HBP-Al2O3 show best wear resistance and thermal stability. A novel Natural rubber (NR) nanocomposites filled with carbon blacks (CBs) and organically modified Al2O3 nanoparticles were prepared and the synergistic effect of CBs and Al2O3 nanoparticles on the properties of the nanocomposites was investigated. The microstructure, tensile strength, elongation at break, modulus, tearing strength and abrasion resistance of the NR nanocomposites were evaluated. The nano-Al2O3 played an important reinforcement effect on the mechanical properties, abrasion resistance and thermal stability of the nanocomposites when it was introduced combined with CBs. Especially, the NR nanocomposites containing hyperbranched polyester modified nano-Al2O3 and CBs gave the best abrasion resistance and thermal stability.
ISSN:0261-3069
DOI:10.1016/j.matdes.2013.01.033