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US 9,187,624 B2Granted
Hemp fiber reinforced composite with recycled high density polyethylene and production thereof
AssigneeThe University of North Carolina at Charlotte
InventorsNa Lu, Ralph Robert Johnson
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Abstract
Novel structural materials composed of industrial hemp fiber with recycled high density polyethylene (HDPE) as well as methods for the production of the same are disclosed. The material's mechanical strength outperforms that of conventional lumber and could compete with glass fiber reinforced composites, particularly in tensile strength. In addition, this material offers many other significant advantages including insect free, high moisture resistance, no harmful chemical treatments, and no rapid corrosion in water environments.
Claims13
A composite material, comprising:
- hemp fibers and additional polymeric fibers braided together and embedded in a matrix of high density polyethylene, wherein the composite material has a tensile strength of greater than 40 MPa, wherein the additional polymeric fibers are at least one of polyester fibers or polylactic acid fibers.
Dependencies are inferred from the claim text.