Effect of different plasticizers on tensile properties of PVA/sago starch system before and after weathering exposure

Mohamed, Rahmah; Mutalib, Nurul Wahida Abdul; Norizan, Mohd Nurazzi; Hirzin, Radin Siti Nazrah; Isa, Siti Aisyah Mohd

doi:10.1063/1.5047163

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…In previous works, water was used as a plasticizer, and it was proven to be a good plasticizer for blends based on starch and polyvinyl [59][60][61][62][63]. The interaction of montmorillonite with water is common to all silicates and includes the following stages: hydration, dispersion, flocculation, deflocculation, and aggregation [64,65].…”

Section: Pretreatment Of the Multilayered Silicate Before Melt Compou...mentioning

confidence: 99%

Increasing the Efficiency of Multilayered Silicate Melt Incorporation into Starch-Based Polymeric Matrices

Dimonie,

Grigorescu,

Trică

et al. 2024

J. Compos. Sci.

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This article compares two exfoliation options of multilayered silicate, one considering the action of shear stress and temperature during melt compounding and another takeing into account the action of the thermo-mechanical pretreatment of multilayered silicate in a plasticizer common to the starch and polyvinyl alcohol (PVOH), the two polymers from the compound. Increasing the action time of the shear stress and temperature during melt compounding proved to be an ineffective method for silicate exfoliation following the high degradability of starch and PVOH under thermo-mechanical conditions and the loss of hydration of the multilayered silicate under thermo-mechanical conditions. The obtained results prove that, by pretreating before embedding into the desired starch-PVOH matrix, it was possible to cancel the electrostatic attractions between the component lamellae of a multilayered silicate. During melt compounding with the two polymers, new attractions between the obtained lamellae and the polar groups of each polymer from the blend were settled, and so, without the usage of a liquid plasticizer, exfoliated intercalated nanocomposites were achieved. The improved properties and the practical importance of the new nanocomposites regards the obtaining of a non-degradable material that has a white color, better elastic properties and thermal stability, and a higher dissipation capacity of deformation energy.

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Section: Pretreatment Of the Multilayered Silicate Before Melt Compou...mentioning

confidence: 99%

Increasing the Efficiency of Multilayered Silicate Melt Incorporation into Starch-Based Polymeric Matrices

Dimonie,

Grigorescu,

Trică

et al. 2024

J. Compos. Sci.

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show abstract

Physicochemical properties and the functional food potential of resistant sago (Metroxylon sagu) starch type IV produced by phosphorylation/acetylation treatment

Zaman

Kamilah

Seruji³

et al. 2022

Food Measure

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Design of water-based polyvinyl alcohol coatings using a drying modifier to minimize the residual solvent and coating defects

Rawat

Ahuja

2022

Iran Polym J

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Effect of different plasticizers on tensile properties of PVA/sago starch system before and after weathering exposure

Cited by 5 publications

References 17 publications

Increasing the Efficiency of Multilayered Silicate Melt Incorporation into Starch-Based Polymeric Matrices

Increasing the Efficiency of Multilayered Silicate Melt Incorporation into Starch-Based Polymeric Matrices

Physicochemical properties and the functional food potential of resistant sago (Metroxylon sagu) starch type IV produced by phosphorylation/acetylation treatment

Design of water-based polyvinyl alcohol coatings using a drying modifier to minimize the residual solvent and coating defects

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