Corrosion behavior of copper/LDPE nanocomposites in simulated uterine solution
Corrosion behavior of copper/LDPE nanocomposites in simulated uterine solution
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DOI：
10.1016/j.biomaterials.2004.08.003
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发表时间：
2005-05-01
期刊：
影响因子：
14
通讯作者：
Xie, CS
中科院分区：
文献类型：
--
作者：
Cai, SZ;Xia, XP;Xie, CS
制备了不同质量分数的铜纳米粒子/低密度聚乙烯（LDPE）纳米复合材料，并研究了其在模拟子宫液中220天的Cu 2+释放速率。铜纳米粒子质量分数对Cu 2+释放和体积电阻率的影响证实，当铜纳米粒子质量分数为30%时，复合材料中可以获得连续的铜纳米粒子网络到35%。采用扫描电子显微镜结合能谱分析（SEM/EDX）技术研究了30wt%Cu/LDPE复合材料在保温前后的铜分布和腐蚀深度。此外，还分别用EDX和X射线衍射对样品进行了元素分析和物相分析。结果表明，铜/低密度聚乙烯纳米复合材料应比传统的IUD材料更有效和可行。(C)2004 Elsevier Ltd.保留所有权利。
We prepared copper/low-density polyethylene (LDPE) nanocomposites with various mass fractions of copper nanoparticles and investigated the Cu2+ release rate of them for 220 days in a simulated uterine solution The influences of copper nanoparticle mass fraction on CU2+ release and volume resistivity confirm that continuous network of copper nanoparticles can be obtained in composites when copper nanoparticle mass fraction ranges from 30% to 35%. Scanning electron microscopy with energy dispersive X-ray microanalysis (SEM/EDX) mapping technique was employed to investigate the copper distribution and corrosion depth of 30 wt% copper/LDPE composite before and after incubation. Besides, elements and phases were also analyzed by EDX and X-ray diffraction, respectively. The results suggest that copper/LDPE nanocomposites should be more efficient and feasible than conventional IUD materials. (C) 2004 Elsevier Ltd. All rights reserved.