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聚氨酯海綿浸滲法制備高孔隙率泡沫銅
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國家“973”項目（2006CB601201）


Preparation of High Porosity Copper Foam by Polyurethane Sponge Impregnation Method
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    摘要:

    采用聚氨酯海綿浸滲法制備了具有高孔隙率（85%~95%）、通孔結(jié)構(gòu)的泡沫銅。根據(jù)聚氨酯海綿浸滲法的工藝特點討論了泡沫銅的燒結(jié)制度，分析檢測了泡沫銅成分，并對一次浸滲和二次浸滲兩種工藝流程制備得到的泡沫銅的孔隙形貌和壓縮性能進(jìn)行了對比。結(jié)果表明，通過二次浸滲工藝可以改變泡沫銅孔壁微觀組織結(jié)構(gòu)，并在孔隙率下降不大的情況下使泡沫銅的壓縮應(yīng)力平臺從0.5 MPa提高到1 MPa，這對改善材料的能量吸收性能具有重要意義。

    Abstract:

    The polyurethane sponge impregnation method was used to prepare copper foam with a high porosity (85%~95%) and open-cell structure. The sintering technology was discussed in accordance with the characteristics of this method. Additionally, the composition of copper foam was analyzed and the microstructure and compressive performances of copper foam fabricated by single-impregnating and double-impregnating were measured and compared. It is indicated that the microstructure at cell wall of the copper foam can be changed and the porosity decreases slightly after treatment of double impregnating, but the compressive stress level increases from 0.5 MPa to 1 MPa which is of great importance for improving the performance of material energy absorption.

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吳 成,喬冠軍,王紅潔,金志浩.聚氨酯海綿浸滲法制備高孔隙率泡沫銅[J].稀有金屬材料與工程,2009,38(4):722~725.[Wu Cheng, Qiao Guanjun, Wang Hongjie, Jin Zhihao. Preparation of High Porosity Copper Foam by Polyurethane Sponge Impregnation Method[J]. Rare Metal Materials and Engineering,2009,38(4):722~725.]
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  • 收稿日期:2008-03-31
  • 最后修改日期:2008-06-20
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