有机泡沫浸渍法制备泡沫镍的研究

Research on Preparation of Nickel Foam by Organic Foam Impregnation Method

为制备纯度较高、对环境友好的泡沫镍,利用氢气还原NiCl2的原理,将氯化镍涂覆在40 ppi聚氨酯泡沫孔筋表面,除去聚氨酯泡沫后,在加热炉中还原并烧结制备出泡沫镍。研究了还原后泡沫金属的组成以及烧结温度对泡沫金属收缩率、电导率以及抗拉强度的影响。结果表明：烧结温度为1100℃时,利用40 ppi聚氨酯泡沫制备出的泡沫镍孔隙率为94.4%、电导率为1×10^6S/m、抗拉强度为2.67 MPa。

In order to prepare high-purity and environment-friendly nickel foam, nickel chloride was coated on the surface of a 40 ppi polyurethane foam by using the principle of hydrogen reduction NiCl2, then the nickel foam was prepared by reducing and sintering in a heating furnace after removal of polyurethane foam. The composition of the metal foam after the reduction and the effects of the sintering temperature on the shrinkage, electrical conductivity and tensile strength of the metal foam were investigated. The results show that when the sinterning temperature is 1100 ℃, the nickel foam prepared with 40 ppi polyurethane foam has a porosity of 94.4%, conductivity of 1×10^6 S/m and tensile strength of 2.67 MPa.