Fatigue resistance of filled NR with PMMA-wrapped and rare earth-doped alumina-siloxane gel
writer：Zhang, M，Qiu, GM，Zhou, LX，Chen, HY，Shinich, I，Hiroshi, O
keywords：摻雜，聚甲基丙烯酸甲酯，疲勞電阻，稀土，氧化鋁-硅氧烷溶膠，天然橡膠
source：期刊
specific source：Journal of Rare Earths
Issue time：2002年
Poly (methyl methacrylate) (PMMA) was used to wrap alumina-siloxane sol which was produced by water glass, aluminum nitrate and α-methacrylic acid, and as a result, alumina-siloxane gel wrapped by PMMA was obtained. Meanwhile, rare earth ions were employed to dope in the course of reaction, and the formed rare earth doped PMMA microcapsule powder was filled into natural rubber (NR). It is found through the analysis of mechanical properties that Young′s modulus universally improves and a remarkable resistance to fatigue is displayed. Retention rate of tensile strength is twice that of the controlled sample after ten thousand times of extension fatigue.