Composite and methods of making and using the same
View Patent ↗Disclosed herein are composites as well as methods of making these composites. The composite may, for example, be used as light-weight, high-strength structural members and wall panels. In some embodiments, the composites can be prepared from a light-weight assembly using simple procedures. Also disclosed herein are assemblies for preparing the composites.
1. A method of making a composite, comprising:
providing a plurality of layers, each layer comprising:
a fabric sheet;
a resin fixed to the fabric sheet; and
a water-expandable resin disposed along portions of each layer; and
fixing each layer to an adjacent layer at regions between the portions of each layer having the water-expandable resin, the composite comprising the plurality of layers fixed to each other.
2. The method of claim 1 , further comprising drying the plurality of layers.
3. The method of claim 1 , further comprising applying water to the plurality of layers.
4. The method of claim 1 , further comprising applying an ionic solution to the plurality of layers.
5. The method of claim 1 , further comprising stacking the plurality of layers such that the fabric sheets of the plurality of layers are generally parallel.
6. The method of claim 1 , wherein fixing each layer to the adjacent layer comprises at least one of adhering each layer to the adjacent layer and fastening each layer to the adjacent layer.
7. The method of claim 1 , wherein the resin fixed to the fabric sheet comprises a polymer having a hydroxyl group and a polymer having an isocyanate group.
8. The method of claim 1 , wherein the water-expandable resin comprises a water-expandable polymer.
9. The method of claim 1 , further comprising curing the resin fixed to the fabric sheet.
10. The method of claim 9 , wherein curing the resin fixed to the fabric sheet comprises applying at least one of heat, radiation, and water to the resin fixed to the fabric sheet.
11. A composite comprising:
a plurality of layers, each layer comprising:
a fabric sheet, and
a resin fixed to the fabric sheet; and
a plurality of lumens between adjacent layers of the plurality of layers, the plurality of lumens containing a water-expandable resin.
12. The composite of claim 11 , wherein the resin comprises a cured resin.
13. The composite of claim 11 , wherein the fabric sheet comprises woven fabric.
14. The composite of claim 11 , wherein the fabric sheet comprises non-woven fabric.
15. The composite of claim 11 , wherein the fabric sheet comprises fibers including a material selected from the group consisting of cellulose, acryls, a protein, glass, aramids, polyesters, resins, and combinations thereof.
16. The composite of claim 11 , wherein a number of the plurality of lumens relative to a number of the plurality of layers is at least about 20 to 1.
17. The composite of claim 11 , wherein each of the plurality of layers has a thickness of no more than about 20 mm.
18. The composite of claim 11 , wherein each of the plurality of layers has a thickness of at least about 0.5 mm.
19. The composite of claim 11 , wherein the adjacent layers are fixed together at regions between the adjacent layers.
20. The composite of claim 19 , wherein the regions of the adjacent layers fixed together comprise an adhesive layer between the adjacent layers.