22-06-2017 дата публикации
Номер: US20170175297A1
Provided herein are high performance reinforcing nanostructure additives, high throughput processes for using such additives, and composites comprising such additives. Such nanostructure additives include nanofibers, including nanofiber fragments, of various matrix materials, including metal(s) (e.g., elemental metal(s), metal alloy(s), etc.), metal oxide(s), ceramic(s), metal carbide(s), carbon (e.g., carbon nanocomposites comprising carbon matrix with metal component embedded therein), and/or combinations thereof. 1. A nanofiber comprising a metal precursor and a polymer , the weight-to-weight ratio of the metal precursor to the polymer being at least 1:2 , at least 20% of the metal precursor being associated with the polymer.2. The nanofiber of claim 1 , wherein the weight-to-weight ratio of the metal precursor to the polymer is at least 1:1.3. The nanofiber of claim 2 , wherein the weight-to-weight ratio of the metal precursor to the polymer is at least 2:1.4. The nanofiber of claim 1 , wherein at least 50% of the metal precursor is associated with the polymer.5. The nanofiber of claim 4 , wherein at least 85% of the metal precursor is associated with the polymer.6. The nanofiber of claim 1 , wherein at least 20% of the polymer is loaded with metal precursor.7. The nanofiber of claim 6 , wherein at least 40% of the polymer is loaded with metal precursor.8. The nanofiber of claim 7 , wherein at least 60% of the polymer is loaded with metal precursor.9. The nanofiber of claim 8 , wherein at least 80% of the polymer is loaded with metal precursor.10. The nanofiber of claim 1 , wherein the polymer is polyvinylalcohol (PVA) claim 1 , polyethylene oxide (PEO) claim 1 , polyvinyl ether claim 1 , polyvinyl pyrrolidone (PVP) claim 1 , polyglycolic acid claim 1 , hydroxyethylcellulose (“HEC”) claim 1 , ethylcellulose claim 1 , cellulose ethers claim 1 , polyacrylic acid claim 1 , polyisocyanate.11. The nanofiber of claim 10 , wherein the polymer is polyvinylalcohol (PVA) ...
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