Method for producing a porous monolithic material
AssigneesCentre National De La Recherche Scientifiqu, Universite De Bordeaux
InventorsAlain Largeteau, Mythili Prakasam
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Abstract
Disclosed is a method for producing a porous monolithic material from at least one powder, preferably mineral, the method including at least one step of low-temperature compression of a mixture based on powder and at least one solvent, preferably water. The materials produced by the method have improved mechanical properties compared to the prior art materials. The materials for medical application, such as hydroxyapatite, also have improved biocompatibility compared to the prior art materials. Also disclosed are materials produced by the method.
Claims17
Method for producing a porous monolithic material (5), this method comprising at least the following steps:
- (a) Supplying at least one mineral or organic powder (S),
- (b) Preparing a mixture (1) comprising at least the powder of step (a) and at least one solvent,
- (c) Packing the mixture of step (b) in sealed packaging (2) made from an elastically deformable material in order to form a sample (3),
- (d) Applying to the sample (3) of step (c) a pressure (P) greater than or equal to 50 MPa at a temperature at which the solvent is in solid form,
- (e) Returning to atmospheric pressure,
- (f) Opening the packaging and recovering the material,
- (g) Removing the solvent at a temperature at which the solvent is in solid form.
Dependencies are inferred from the claim text.