Biodegradable biopolymer films
AssigneeNorth Carolina State University
InventorsOrlin D. Velev, Yosra Kotb
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Abstract
Provided is a biopolymer composite film that includes a polysaccharide matrix reinforced with soft dendritic colloids and methods for making. The method can include dissolving agarose in water to form a first mixture, mixing nanofibrillated chitosan in the agarose, sonicating or stirring the mixture to form a homogeneous second mixture, casting the second mixture, and gelling the second mixture to form a film. Also provided is a food or consumer product packaging film that includes the biopolymer composite film.
Claims12
A biopolymer composite film comprising a polysaccharide and soft dendritic colloids, wherein the soft dendritic colloids are about 5% w/w to 20% of the polysaccharide, and wherein the soft dendritic colloids are synthesized from chitosan to form nanofibrillated chitosan.
A biopolymer composite film comprising a polysaccharide and soft dendritic colloids;
- wherein the soft dendritic colloids are synthesized from chitosan to form nanofibrillated chitosan;
- wherein the polysaccharide is agarose;
- wherein the nanofibrillated chitosan is about 15% w/w of the agarose;
- and
- wherein the biopolymer composite film has a tensile strength of about 50 MPa.
A consumer product packaging film comprising:
- a biopolymer composite film comprising a polysaccharide and soft dendritic colloids, wherein the soft dendritic colloids are about 5% w/w to 20% of the polysaccharide, and wherein the soft dendritic colloids are synthesized from chitosan to form nanofibrillated chitosan.
Dependencies are inferred from the claim text.