Application US20190048147

NANOCELLULOSIC COMPOSITIONS
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US20190048147

1. A method of preparing a biodegradable plastic, the method comprising (4) (3)

dissolving a one or more polymers into a solvent to form a solution;

adding nanocellulose to the solution to form a stable suspension; and

processing the stable suspension to form the biodegradable plastic.

2. The method according to claim 1, wherein the biodegradable plastic comprises nanocellulose at a weight percentage in the range of about 1 wt % to about 50 wt %. (0)

3. The method according to claim 1, wherein the processing step comprises extruding, solvent casting, injection molding, compression molding, blow molding, transfer molding, rotational molding, or thermoforming the first composition. (0)

4. The method according to claim 1, wherein the nanocellulose is prepared by (2) (4)

subjecting cellulose to an acidic medium capable of hydrolyzing the cellulose to form nanocellulose;

recovering the nanocellulose from the acidic medium;

resuspending the recovered nanocellulose in water; and

lyophilizing the recovered cellulose to form the nanocellulose, wherein the nanocellulose is substantially ordered.

7. The method according to claim 4, wherein the steps of recovering the nanocellulose from the acidic medium and resuspending the recovered nanocellulose in water are performed at a temperature in the range of about 1° C. to about 15° C. (0)

8. The method according to claim 4, wherein the step of recovering the nanocellulose from the acidic medium comprises (1) (4)

quenching the acidic medium with water;

washing the nanocellulose with water to remove the acidic medium;

at least one cycle of centrifuging the nanocellulose, and

recovering a nanocellulose pellet.

9. The method according to claim 8, wherein the step of recovering the nanocellulose comprises three cycles of centrifuging. (0)

10. A biodegradable plastic prepared in accordance with the method of claim 1. (5) (0)

11. The biodegradable plastic according to claim 10, wherein at least one of the one or more polymers is a biodegradable polymer. (0)

12. The biodegradable plastic according to claim 10, wherein at least one of the one or more polymers is a thermosetting polymer. (0)

13. The biodegradable plastic according to claim 10, wherein at least one of the one or more polymers is a thermoplastic polymer. (0)

14. The biodegradable plastic according to claim 10, wherein the one or more polymers are selected from the group consisting of polystyrene, high-impact polystyrene, acrylonitrile butadiene styrene, polyesters, polyalkyleneimines, polylactic acid, polyglycolic acid, poly(lactic co-glycolic acid), polycaprolactone, polyvinyl alcohol, cross-linked polyvinyl alcohol, cross-linked polyvinyl butyrate, ethylene ethylacrylate copolymer, polyethylhexylacrylate, polyvinyl chloride, polyvinyl acetals, plasticized ethylene vinylacetate copolymer, ethylene vinylchloride copolymer, polyvinyl esters, polyvinylbutyrate, polyvinylformal, poly(hydroxyl alkanoates), polyamides, polymethacrylate, polymethylmethacrylate, polybutylmethacrylate, polyvinyl chloride, nylon, polyethylene, high-density polyethylene, low-density polyethylene, polyethylene terephthalate, natural rubber, polyisoprene, polyisobutylene, polybutadiene, high-density polyethylene, low-density polyethylene, polytetrafluoroethylene, polyvinylidene chloride, polyurethane, polyacrylonitrile, cross-linked polyvinylpyrrolidone, polytrifluorochloroethylene chlorinated polyethylene, poly(1,4-isopropylidene diphenylene carbonate), vinylidene chloride, acrylonitrile copolymer, vinyl-chloride-diethyl fumarate copolymer, silicone rubbers, polycarbonate, and siloxanes, as well as combinations thereof. (0)

15. The biodegradable plastic according to claim 10, wherein the one or more additives are selected from the group consisting of a plasticizer, a pigment, a filler, an extender, a fragrance, an impact modifier, an antimicrobial, an antioxidant, an antistatic agent, a flame retardant, and combinations thereof. (0)

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Application US20190048147

NANOCELLULOSIC COMPOSITIONS

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