氧化钇空心微球的制备及其复合橡胶的低频阻尼性能

doi:10.11901/1005.3093.2014.536

材料研究学报

2015, Vol. 29

Issue (7): 505-510 DOI: 10.11901/1005.3093.2014.536

本期目录 | 过刊浏览

氧化钇空心微球的制备及其复合橡胶的低频阻尼性能

张富青¹,王维²,孙刚²,江学良²(

)

1. 武汉工程大学化学与环境工程学院武汉 430073
2. 武汉工程大学材料科学与工程学院武汉 430073

Preparation of Y₂O₃Hollow Spheres and Low Frequency Damping Properties of Rubber Composite Reinforced with Y₂O₃Hollow Spheres

Fuqing ZHANG¹,Wei WANG²,Gang SUN²,Jiangtao CHEN²,Xueliang JIANG^2,^**(

)

1. School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China
2. School of Material Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China

引用本文:

张富青,王维,孙刚,江学良. 氧化钇空心微球的制备及其复合橡胶的低频阻尼性能[J]. 材料研究学报, 2015, 29(7): 505-510.
Fuqing ZHANG, Wei WANG, Gang SUN, Jiangtao CHEN, Xueliang JIANG. Preparation of Y₂O₃Hollow Spheres and Low Frequency Damping Properties of Rubber Composite Reinforced with Y₂O₃Hollow Spheres[J]. Chinese Journal of Materials Research, 2015, 29(7): 505-510.

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摘要:

以用分散聚合法制备的聚甲基丙烯酸甲酯(PMMA)微球作为牺牲模板, 用均相沉淀法制备PMMA/碱式碳酸钇(Y(OH)CO₃)复合微球, 高温煅烧后得到氧化钇(Y₂O₃)空心微球, 将其与丁基橡胶复合制备了复合橡胶低频高阻尼材料。用傅里叶变换红外光谱分析(FTIR), 扫描电子显微镜(SEM), 透射电子显微镜(TEM), 热重分析仪(TG), X射线衍射分析(XRD)和X射线光电子能谱分析(XPS)等手段对Y₂O₃空心球的形貌与结构组成进行了表征。结果表明, Y₂O₃空心球由立方萤石结构的颗粒组成, 外空心直径为1 μm, 壳层的厚度约为80 nm。将Y₂O₃空心微球和粉体分别作为填料加入丁基橡胶中制备的Y₂O₃/丁基橡胶复合材料, 与加入Y₂O₃粉体相比, 加入Y₂O₃空心球明显提高了丁基橡胶的阻尼性能, 在8、18、28、50、65、90 Hz附近的损耗因子较大。

关键词 ：复合材料, PMMA, 模板, Y₂O₃, 空心球, 低频阻尼, 丁基橡胶

Abstract：

Poly(methyl methacrylate) (PMMA) spheres were firstly prepared through dispersion polymerization, then with which as sacrifice template, PMMA/Y(OH)CO₃ composite microspheres were prepared by homogeneous precipitation technique. Thirdly, Y₂O₃ hollow spheres were obtained by calcination of PMMA/Y(OH)CO₃at elevated temperature, and finally Y₂O₃ hollow shperes reinforced butyl rubber composites were fabricated. The structure and morphology of the Y₂O₃ hollow nanospheres were characterized by means of Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectrum (XPS), X-ray diffraction (XRD) and thermogravimetry (TG). The results show that hollow spheres composed of Y₂O₃particles of face-centered cubic crystallorgraphic structure, and their diameter is about 1 μm with a thin shell thickness about 80 nm. The hollow microspheres and powders of Y₂O₃ as filler were added respectively into butyl rubber to prepare butyl rubber composites. It follows that the butyl rubber composites with addition of Y₂O₃ hollow spheres rather than that of Y₂O₃ powders exhibited better damping properties with larger loss factors by frequencies such as 8, 18, 28, 50, 65 and 90 Hz.

Key words： composites polymethyl methacrylate template Y₂O₃ hollow nanospheres low frequency damping capacity butyl rubber

收稿日期: 2014-09-26

基金资助:* 国家自然科学基金51273154、武汉工程大学研究生教育创新基金CX2013085和绿色化工过程教育部重点实验室开放基金GCP201307资助项目。

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图1 PMMA微球, PMMA/Y(OH)CO3复合微球, Y2O3空心微球的扫描电镜照片以及Y2O3空心微球的透射电镜照片

图2 PMMA微球模板、 PMMA/Y(OH)CO3复合微球和Y2O3空心球的红外谱图

图3 PMMA微球模板、PMMA/Y(OH)CO3复合微球和Y2O3空心球的TG曲线

图4 在不同温度煅烧的Y2O3空心球的XRD图谱

图5 Y2O3空心球的XPS全谱和Y 3d谱

图6 材料在不同温度下的阻尼性能

图7 材料在不同频率(0-100 Hz)下的阻尼性能

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