Thermoset porous composites and methods thereof
AssigneeUniversite Laval
InventorsGholamali Sharifishourabi, Denis Rodrigue
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Abstract
There is provided herein thermoset porous polymer composites a methods for producing such composites. The method comprises: preparing a mixture comprising a resin, optionally a curing agent, and dry ice; optionally casting the mixture; curing the mixture to obtain the porous composite; and optionally controlling at least one of a reaction rate and an expansion rate of the mixture during the curing.
Claims7
A method of producing a density-graded porous polymer composite, comprising:
- preparing a mixture comprising a resin, a curing agent, dry ice and optionally a filler;
- casting the mixture;
- curing the casted mixture to obtain the porous composite;
- and
- controlling the reaction rate of the casted mixture to obtain a density gradient in the porous composite.
A method of producing a density-graded porous polymer composite, comprising:
- preparing a mixture comprising a resin, a curing agent, dry ice and optionally a filler;
- forming a first polymer composite layer having a first average density and/or a first average pore size;
- and
- varying one or more parameters to obtain a second polymer composite layer having a second average density and/or a second average pore size,
- wherein the parameters are chosen from amount of dry ice, time of exposure to dry ice, pressure of the mixture, temperature of the mixture, and viscosity of the mixture;
- and wherein the first and second polymer composite layers are formed by a single unitary continuous material.
A method of producing a layered porous polymer composite, comprising:
- preparing a mixture comprising a resin, a curing agent, dry ice and optionally a filler;
- adding additional dry ice to the mixture;
- casting the mixture;
- curing the mixture to obtain the porous composite;
- and
- exposing top and bottom portions of the casted mixture to a decreased temperature so as to form density gradients in the polymer composite.
Dependencies are inferred from the claim text.