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US 10,793,647 B2Granted
Method for production of cellulose nanocrystals from Miscanthus giganteus and composites therefrom
AssigneeCase Western Reserve University
InventorsStuart Rowan, Mo Hunsen, Amanda Way
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Abstract
Cellulose nanocrystals (CNCs) from the plant Miscanthus Giganteus (MxG) and a matrix material are present in a composite composition. Impressive yields of MxG-CNCs are obtained through a combination of processing steps including base hydrolysis, bleaching and acid hydrolysis. MxG-CNCs are produced having high aspect ratios, are biorenewable and can be used for a wide range of applications such as nanofillers in composites.
Claims13
A composite composition, comprising:
- a matrix material;
- and cellulose nanocrystals from Miscanthus Giganteus having carboxyl functionality,
- wherein the matrix material comprises one or more polymers or copolymers,
- wherein the polymers or copolymers comprise an alkylene oxide (co)polymer, a vinyl aromatic (co)polymer, a polyolefin (co)polymer, a diene (co)polymer, a polyacrylate (co)polymer, poly(vinyl acetate), poly(vinyl alcohol), a polyimide, a polyurethane, a polyester, or a combination thereof,
- wherein the nanocrystals are derived from a process comprising the steps of:
- performing a base hydrolysis step on a quantity of the Miscanthus Giganteus;
- performing a bleaching step on a solid material recovered from the base hydrolysis step;
- performing an acid hydrolysis step on a solid material recovered from the bleaching step;
- and
- recovering cellulose nanocrystals from the Miscanthus Giganteus after performing the acid hydrolysis step.
7 more elements
Dependencies are inferred from the claim text.