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Nanocellulose Nanocellulose Opportunities

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Nanocellulose Nanocellulose Opportunities Future Trends in Packaging Materials Future TrendsNanoCellulose in Packaging Materials Opportunities Art Ragauskas [email protected] Future Trends in Packaging Materials WhyFuture N anoce Trends ll inu Packaginglosi cs Materials • Improve the biopolymer properties: ‐ Mechanical (strength, modulus and strain) ‐ Thermal stability ‐ Toughness ‐ Barrier ‐ Biodegradability ‐ Optics • Use renewable raw materials • New applications • Packaging, medical, transport, electronics etc. Future Trends in Packaging Materials Cellulose Whiskers Future Trends in Packaging Materials Surface Area E-Glass Fibers approx.1 Paper Fibers 4 Graphite 25 - 300 Fumed Silica 100 - 400 Fully Exfoliated Clay approx. 500 Nanocellulose Whiskers 400 - 700 CbCarbon Nano tbtubes approx. 100 • Size: width ~5 - 30 nm, length ~ 150-500 nm • Estimated Modulus ~150 GPa NanoCelluloseFuture Trends in Packaging Materials Future Trends in Packaging Materials Commonly Prepared From A Variety of Cellulosic Fibers Future Trends in Packaging Materials m Nanocellulose Whiskers Future Trends in Packaging Materials mm PtiPreparation μm OH OH O OH O OH O HO O HO O-Cellulose HO O HO O OH OH O OH OH O OH O OH OH O OH O HO O HO O-Cellulose HO O HO O OH O OH O OH OH 10 nm 1 nm Tensile Carbon Fibers > Cellulose Nanocrystals > > S-Glass > Aramid Future Trends in Packaging Materials Cellulose Nano Balls vs. Whiskers Future Trends in Packaging Materials 180 Applications 160 Cellulose Balls 140 • Composites 120 100 80 • Drug Delivery Size (nm) Size 60 40 • Cosmetics 20 0 012345 Time (hour) 5% Cellulose Balls 5% Cellulose Whiskers Latex Film Latex Film Latex Film Future Trends in Packaging Materials MicroFibrillatedFuture Trends in Packaging Cellulose Materials Preparation: Web-Like: Diameter: 5 – 40 nm , Length > 1000 nm Mechanical treatments ‐ Homogenization ‐ Microfluidizer ‐ Grinding, supermasscolloider ‐ Cyrocrushing ‐ Sonification Future Trends in Packaging Materials NanoFuture Cellulose Trends in Packaging Whiskers Materials Composites • Rubber, Resole-type phenolic resins • Poly(vinyl alcohol), Poly(oxyethylene), Poly(lactic acid) • Poly(styrene-co-hexylacrylate) copolymer • Poly(vinyl chloride), polyurethane • Polyproprolyene, polystyrene •Whiskers act as efficient reinforcement due to high aspect ratios, surface areas and high modulus. • Common benefits observed in tensile strength, elongation rate, elevated thermal decomposition Future Trends in Packaging Materials NanoFuture Cellulose Trends in Packaging Whiskers Materials Films • Hydroxypropyl Methyl Cellulose • Xylan, Starch, Chitosan, Glucomannan • Styrene Butyly acrylate latex General Benefits Due to Whiskers • Enhanced moisture and oxygen barrier properties • Tensile strength, TEA, Young's modulus Future Trends in Packaging Materials MicrofibrillatedFuture Trends in Packaging Cellulose Materials Composites • Paper board • Improvement in tensile index • Polypropylene, poly(ε-caprolactone) • Improved tensile and flexural strength • Polysodium acrylate superabsorbents (SAPs) • Improvements in shear modulus General Benefits Due to Whiskers • Enhanced moisture and oxyegn barrier properties • Tensile strength, TEA, Young's modulus Future Trends in Packaging Materials MicrofibrillatedFuture Trends in Packaging Cellulose Materials Films • MFC • MFC/Layered Clay •Enhanced oxygen barrier properties •Paper board, Galactoglucomannans • Improvement in ppyhysical and barrier pro perties • Polypropylene, • Improved tensile and flexural strength General Benefits Due to Microfibrillated Cellulose • Enhanced moisture, oil and oxygen barrier properties • Tensile strength, TEA, Young's modulus, transparent Future Trends in Packaging Materials NanocelluloseFuture Trends in Applications Packaging Materials • Polymer Composites & bioplastics • Films, foams, and gells • Cosmetics • Dimensionally stable thickener and emulsion • Implant material, biodegradable tissue scaffold • Suture, drug delivery vehicle, • Filter paper, speaker membrane • Battery membrane • Concrete • Drilling muds & enhanced oil recovery • Water treatment Future Trends in Packaging Materials NanocelluloseFuture Trends in Applications Packaging Materials • Electronics - flexible circuits • Flexible solar panels • Paints pigments and inks • Screens and coatings.
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