Abstract
Six kinds of nickel foam/polyurethane co-continuous composites were successfully prepared by vacuum feeding. The effects of pore size, volume density and metal arris thickness on the tensile properties of nickel foam/polyurethane co-continuous composites were investigated. The relationship between the tensile strength and elongation at break of the composite and the structural parameters of the nickel foam was established, which can be used to estimate the tensile strength and elongation at break of the composite. The nickel foam reinforced composite with moderate metal arris wall thickness had high elongation at break, and the metal phase and the resin phase had good synergistic deformation ability, which can effectively improve the tensile properties of the composite. While increasing the strength, the metal skeleton also had a good toughening effect on the polyurethane.
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