Nanocomposite hemp
A composite material comprising a polymer and a carbonized hemp filler, wherein the carbonized hemp filler is produced by carbonizing hemp at a temperature of at least 1100 C to produce a char; and milling the char to produce a particle size, wherein the filler comprises 95% of particles of less than 10 microns in size; and wherein the hemp filler comprises between 1 and 50% of the total mass of the composite.
1. A composite material comprising a polymer and a hemp char filler, wherein the hemp char filler is produced by carbonizing a portion of hemp at a temperature of at least 1100° C. to produce a hemp char; and milling the hemp char to produce the hemp char filler having an average particle size of between 0.001 and 10 microns; adding into hemp char filler a portion of polymer and milling the hemp char filler and polymer together to form the composite material, wherein the hemp char filler comprises 95% of particles of between 0.001 and 10 microns in size; and wherein the hemp char filler comprises between 1% and 50% of the total mass of the composite material; and wherein the composite does not contain silanes or a dispersing agent to disperse the hemp particles into the polymer before forming the composite material.
2. The composite of claim 1 , wherein the hemp particle filler comprises an average particle size of less than 2 microns.
3. The composite of claim 1 , wherein the milling comprises a cryomilling process.
4. The composite of claim 1 , wherein the hemp char filler is included at a sufficient density in the composite material wherein the resistance of the composite is less than 100Ω.
5. The composite material of claim 1 , wherein the composite material is extruded into a composite article.
6. A method of manufacturing a hemp based composite particles comprising: processing a portion of polymer to generate a polymer particle having an average particle size of between 0.001 and 10 microns, using a 30 Hz processing in an oscillating mill; processing a portion of hemp by cryomilling said hemp under liquid nitrogen at 30 Hz; and combining a portion of the polymer particle and a portion of the cryomilled hemp and milling them together at 30 Hz to form composite particles.
7. The method of claim 6 , wherein the composite particles are further processed by extrusion or molding to form a composite article.
8. The method of claim 6 , wherein the average particle size of the polymer particle is no more than 2 microns.
9. The method of claim 6 , wherein the average particle size of the cryomilled hemp is no more than 2 microns.
10. The method of claim 6 , wherein a composite particle comprises between 1 and 50% of the cryomilled hemp.
11. The method of claim 10 , wherein the composite material has a resistance of less than 100Ω.
12. The method of claim 6 , wherein the polymer is selected from a biodegradable polymer, a non-biodegradable polymer, or combinations thereof.
13. The method of claim 6 , wherein the portion of hemp is a carbonized hemp.
14. The method of claim 13 , wherein the carbonized hemp is charred at a temperature of greater than 600° C. under an inert gas.
15. The method of claim 6 , wherein the polymer is acrylonitrile butadiene styrene, polylactic acid, polyethylene terephthalate, polypropylene, or combinations thereof.