Fatigue Resistance of Filled NR with PMMA-Wrapped and Rare Earth-Doped Alumina-Siloxane Gel
来源期刊：JOURNAL OF RARE EARTHS2002年第4期
论文作者：陈海燕 周兰香 邱关明 张明
Key words：rare earths: alumina-siloxane sol; natural rubber(NR); mechanical properties; resistance; tesistance to fatigue;
Abstract: 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.
陈海燕1，周兰香1，邱关明2，张明1
(1.Department of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China;
2.Changchun College of Optics & Fine Mechanics, Changchun 130022, China)
Abstract: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.
Key words:rare earths: alumina-siloxane sol; natural rubber(NR); mechanical properties; resistance; tesistance to fatigue;
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