Method for manufacturing composite material, and composite material

A method for manufacturing a composite material, the method comprising steps of:

• (a) providing a metal foam;
• (b) preparing a mixture comprising the metal foam and a curable polymer;
• (c) curing the curable polymer of the mixture to obtain the composite material;
• and
• (d) performing a planarization treatment on at least one of the metal foam before preparing the mixture, the mixture before curing the curable polymer, or the composite material,
• wherein the step (d) is performed on the metal foam before the step (b), and
• wherein after the step (d) is performed, a surface roughness of the metal foam is 6 μm or less.

A method for manufacturing a composite material, the method comprising steps of:

• (a) providing a metal foam;
• (b) preparing a mixture comprising the metal foam and a curable polymer;
• (c) curing the curable polymer of the mixture to obtain the composite material;
• and
• (d) performing a planarization treatment on at least one of the metal foam before preparing the mixture, the mixture before curing the curable polymer, or the composite material,
• wherein the step (a) is performed in a manner comprising (a1) a process of manufacturing a green structure using a slurry comprising a metal powder, a binder and a dispersant, and (a2) a process of sintering the green structure.

A method for manufacturing a composite material, the method comprising steps of:

• (a) providing a metal foam;
• (b) preparing a mixture comprising the metal foam and a curable polymer;
• (c) curing the curable polymer of the mixture to obtain the composite material;
• and
• (d) performing a planarization treatment on at least one of the metal foam before preparing the mixture, the mixture before curing the curable polymer, or the composite material,
• wherein the step (d) is performed on the metal foam before the step (b), and
• wherein a ratio (RA/RB) of a first surface roughness (RA) of the metal foam after performing the planarization treatment to a second surface roughness (RB) of the metal foam before performing the planarization treatment is 0.9 or less.

A method for manufacturing a composite material, the method comprising steps of:

• (a) providing a metal foam;
• (b) preparing a mixture comprising the metal foam and a curable polymer;
• (c) curing the curable polymer of the mixture to obtain the composite material;
• and
• (d) performing a planarization treatment on at least one of the metal foam before preparing the mixture, the mixture before curing the curable polymer, or the composite material,
• wherein the step (d) is performed on the metal foam before the step (b), and
• wherein a ratio (KA/KB) of a first thermal resistance (KA) of the metal foam after performing the planarization treatment to a second thermal resistance (KB) of the metal foam before performing the planarization treatment is 0.9 or less.