Hybrid HPMC nanocomposites containing bacterial cellulose nanocrystals and silver nanoparticles.
Hydroxypropyl methyl cellulose (HPMC) based hybrid nanocomposites reinforced with bacterial cellulose nanocrystals (BCNC) and silver nanoparticles (AgNPs) had been prepared and characterised. BCNC was capable of improving the tensile strength and modulus of HPMC, but they made the film more brittle. The addition of AgNPs along with BCNC, helped to regain some of the lost elongation properties without affecting other properties. Moisture sorption analysis proved that the hydrophilicity of the nanocomposite decreased considerably by the addition of these nanomaterials. Several mathematical models were also used to fit the experimental sorption results. A unique combination of two nanomaterials was highly effective in overcoming certain limitations of nanocomposites which uses only one type of nanomaterial. This type of hybrid nanocomposites with superior properties is expected to be useful in eco-friendly food packaging applications.
Defence Food Research laboratory, Siddarthanagar, Mysore, 570 011, India. Electronic address: g.johnsy@gmail.com.
Johnsy
J
George
Defence Food Research laboratory, Siddarthanagar, Mysore, 570 011, India.
Ranganathan
R
Kumar
Defence Food Research laboratory, Siddarthanagar, Mysore, 570 011, India.
Vallayil Appukuttan
VA
Sajeevkumar
Defence Food Research laboratory, Siddarthanagar, Mysore, 570 011, India.
Karna Venkata
KV
Ramana
Defence Food Research laboratory, Siddarthanagar, Mysore, 570 011, India.
Ramalingam
R
Rajamanickam
Defence Food Research laboratory, Siddarthanagar, Mysore, 570 011, India.
Virat
V
Abhishek
Defence Food Research laboratory, Siddarthanagar, Mysore, 570 011, India.
Shanmugam
S
Nadanasabapathy
Sri Jayachamarajendra College of Engineering, Mysore, 570 006, India.
Siddaramaiah
D041822:Gluconacetobacter xylinus / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D065347:Hypromellose Derivatives / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D012834:Silver / Q000737:chemistry*; D014961:X-Ray Diffraction
D012834:Silver; D065347:Hypromellose Derivatives
Cellulose nanocrystals; Hybrid nanocomposites; Silver nanoparticles