Cellulose nanocrystals and snail shell‐reinforced polyvinyl alcohol bioplastic films: Additive concentration optimization and mechanical properties assessment

This study focused on modeling and optimization of the concentration of poly (vinyl alcohol) (PVA), cellulose nanocrystals (CNC), snail shell nanoparticles (SSN), and glycerol for the development of bioplastic films. The response surface methodology using Box–Behnken experimental design was used to...

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Bibliographic Details
Published inJournal of applied polymer science Vol. 139; no. 36
Main Authors Gbadeyan, Oluwatoyin J., Fagbemi, Olajumoke D., Andrew, Jerome, Adali, Sarp, Glen, Bright, Sithole, Bruce
Format Journal Article
LanguageEnglish
Published Hoboken, USA John Wiley & Sons, Inc 20.09.2022
Wiley Subscription Services, Inc
Subjects
Additives
biomaterials
Bioplastics
Cellulose
cellulose and other wood products
Design of experiments
Glycerol
Materials science
Mathematical models
Mechanical properties
Modulus of elasticity
morphology
Nanocrystals
Nanoparticles
Optimization
Parameters
Polymers
Polynomials
Polyvinyl alcohol
Response surface methodology
Tensile strength
thermal properties
Thermal stability
Ultimate tensile strength
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Summary:This study focused on modeling and optimization of the concentration of poly (vinyl alcohol) (PVA), cellulose nanocrystals (CNC), snail shell nanoparticles (SSN), and glycerol for the development of bioplastic films. The response surface methodology using Box–Behnken experimental design was used to investigate the effect of the independent parameters (additives concentrations) on the ultimate tensile strength and Young's modulus of fabricated bioplastic films. A varied ultimate tensile strength and Young's modulus with different component loadings was observed, proving the effect of nanoparticles loading effect on the mechanical properties of bioplastic films. The quadratic polynomial model experiment data provided a coefficient of determination (R2) of 0.795 for ultimate tensile strength and 0.732 for Young's modulus, evidencing the fitness of the models to pilot the optimization space. The optimum parameters were PVA (7.820%), CNC (1079%), SSN (1241%), and glycerol (2.657%). The ultimate tensile strength and Young's modulus of 27.2 MPa and 31.2 MPa were obtained for the developed bioplastic film with optimized concentrations of each component. The bioplastic films showed improved thermal stability and degradation. The scanning electron microscopy (SEM) imaging revealed a homogeneous dispersion of SSN and CNC in the matrix, which explained the improved properties observed.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.52839