Effect of polymer blending on mechanical and barrier properties of starch-polyvinyl alcohol based biodegradable composite films

Patil, Sharmila; Bharimalla, A. K.; Mahapatra, Archana; Dhakane-Lad, Jyoti; Arputharaj, A.; Kumar, Manoj; Raja, Arumugam; Kambli, Nishant

doi:10.1016/j.fbio.2021.101352

Cited by 78 publications

(45 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The simplicity has made the solution casting method becomes the most applicable method for biodegradable plastic preparation [7,8,13,14]. However, this method is not suitable for industrial-scale production due to its requirement of the removal of a large amount of water (up to 90% of the solution).…”

Section: Figure 1 Molecular Structure Of Lignin [10]mentioning

confidence: 99%

See 1 more Smart Citation

Response Surface Methodology for Formulating PVA/Starch/Lignin Biodegradable Plastic

et al. 2022

View full text Add to dashboard Cite

The use of petroleum-based plastics has raised environmental issues as more plastic waste enters and accumulates in the environment. It has led to the development of biodegradable plastics. Starch is one of the potential materials to make biodegradable plastic, but starch-based plastic has poor mechanical strength. Blending starch with poly(vinyl alcohol) (PVA) and lignin is expected to improve the mechanical properties of the plastic. Biodegradable plastic films from PVA/starch/lignin blends with glycerol as a plasticizer were prepared using an internal mixer for compounding and a hot press molding machine for film making. The percentage of lignin (2-10%), glycerol (25-65%), and mixing temperature (190-230 oC) were varied according to the three levels of the Box-Behnken design. The ANOVA evaluation revealed that glycerol had the most significant effect on the mechanical properties of the film. Then, three models for the estimation of tensile strength, elongation at break, and tear resistance were developed. As expected, the models satisfactorily predict the effect of all input variables on the response variables. The optimum conditions for preparing the film were acquired from the equations, namely 197.6 oC for the temperature, 10% for lignin, and 45.1% for glycerol. The biodegradable plastic prepared using the optimum conditions possessed a tensile strength of 8.46 ± 1.08 MPa, an elongation at break of 139.00 ± 8.59%, and a tear resistance of 69.50 ± 2.50 N/mm. These values are in good agreement with the predicted values. Doi: 10.28991/ESJ-2022-06-02-03 Full Text: PDF

show abstract

Section: Figure 1 Molecular Structure Of Lignin [10]mentioning

confidence: 99%

“…One of them is polyvinyl alcohol (PVA), which has excellent mechanical properties and the ability to form a uniform mixture with starch [5,6]. Therefore, the addition of PVA to starch for the preparation of biodegradable plastic can be expected to improve the tensile strength and the elongation at break [6][7][8].…”

Section: -Introductionmentioning

confidence: 99%

Response Surface Methodology for Formulating PVA/Starch/Lignin Biodegradable Plastic

et al. 2022

View full text Add to dashboard Cite

show abstract

“…To overcome these limits, reinforcement with additional components into PVA is required. The most commonly used reinforcement additives include graphene oxide, 15–17 carbon nanotubes, 18–21 cellulose nanofiber and nanocrystal 22–27 and starch 27–29 . Although cellulose nanofiber and nanocrystal possess excellent features, the involvement of chemicals and complexity in extraction process limits their usage 27,30,31 .…”

Section: Introductionmentioning

confidence: 99%

“…The most commonly used reinforcement additives include graphene oxide, [15][16][17] carbon nanotubes, [18][19][20][21] cellulose nanofiber and nanocrystal [22][23][24][25][26][27] and starch. [27][28][29] Although cellulose nanofiber and nanocrystal possess excellent features, the involvement of chemicals and complexity in extraction process limits their usage. 27,30,31 Starch cannot Wenqiang Wang and Yiming Gong contributed equally to this work.…”

Section: Introductionmentioning

confidence: 99%

High performance polyvinyl alcohol/polylactic acid materials: Facile preparation and improved properties

Wang

Gong

Sun

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

Developing eco-friendly products to replace fossil-based ones which are difficult to degrade and pollute survival environment, is of great significance for human health and environmental protection. Here, the preparation of green polyvinyl alcohol/polylactic acid (PVA/PLA) materials has been achieved for the first time using a simple and effective strategy. Interestingly, after the composite of PVA with PLA, PLA can remarkedly enhance tensile strength, elongation at break, biocompatibility and thermostability of the PVA/PLA material. Moreover, the material is biodegradable in natural environment. At the same time, scanning electron micrograph (SEM), X-ray diffraction (XRD) and infrared spectra (IR) techniques are employed to systematically study the effects of PVA/PLA mass ratio on the morphology, crystallinity and chemical structure of the PVA/PLA material and possible interaction between PVA and PLA. It is expected that this study can provide a new insight into the fabrication of green PVA-based products with high performance and practical application.

show abstract

“…The properties of starch blended with other substrates can be designed directionally to provide a theoretical basis for intelligent applications. For example, increasing the polyvinyl alcohol (PVA) content in a blend of starch and PVA elevates the mechanical properties and barrier properties of the film significantly but decreases the permeability significantly [ 14 ]. In addition, edible films of acetylated cassava starch and pea protein isolate are produced using conventional blown-film extrusion; when the proportion of pea protein isolate reaches 20%, it has good processability, and protein improves the oxidative stability and structural integrity of edible packages [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Pea Starch/ε-Polylysine Composite Films

Deping

Han

et al. 2022

Materials

View full text Add to dashboard Cite

The composite films comprising pea starch (St) and ε-polylysine (PL) as the matrix and glycerol and sodium alginate as the plasticizers were investigated. The rheological properties, mechanical properties, Fourier transformed infrared spectroscopy, water vapor permeability (WVP), oil permeability, microstructure, thermogravimetry (TGA), and antimicrobial properties of the composite films were analyzed. The properties of the composite films with different mass ratios of St/PL varied significantly. First, the five film solutions were different pseudoplastic fluids. Additionally, as the mass ratio of PL increased, the tensile strength of the blends decreased from 9.49 to 0.14 MPa, the fracture elongation increased from 38.41 to 174.03%, the WVP increased, and the oil resistance decreased substantially. The films with a broad range of St/PL ratios were highly soluble; however, the solubility of the film with a St/PL ratio of 2:8 was reduced. Lastly, the inhibition of E. coli, B.subtilis, and yeast by the films increased with increasing mass ratios of PL, and the inhibition of B.subtilis was the strongest.

show abstract

Effect of polymer blending on mechanical and barrier properties of starch-polyvinyl alcohol based biodegradable composite films

Cited by 78 publications

References 25 publications

Response Surface Methodology for Formulating PVA/Starch/Lignin Biodegradable Plastic

Response Surface Methodology for Formulating PVA/Starch/Lignin Biodegradable Plastic

High performance polyvinyl alcohol/polylactic acid materials: Facile preparation and improved properties

Preparation and Properties of Pea Starch/ε-Polylysine Composite Films

Contact Info

Product

Resources

About