A Study of Physicomechanical and Morphological Properties of Starch/Poly(vinylalcohol) Based Films

Ray, Dipa; Roy, Papri; Sengupta, Surajit; Sengupta, Siba Prasad; Mohanty, Amar K.; Misra, Manjusri

doi:10.1007/s10924-009-0117-z

Cited by 16 publications

(5 citation statements)

References 17 publications

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“…The points of zero charge (pzc) or isoelectric point is at pH 6.0 for ceria and pH 1.5 for silica. These values are consistent with those reported by others [28,29].…”

Section: Effect Of Slurry Phsupporting

confidence: 94%

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Consumables for Advanced Shallow Trench Isolation (STI)

Burkhard

2007

Microelectronic Applications of Chemical Mechanical Planarization

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“…The points of zero charge (pzc) or isoelectric point is at pH 6.0 for ceria and pH 1.5 for silica. These values are consistent with those reported by others [28,29].…”

Section: Effect Of Slurry Phsupporting

confidence: 94%

“…29 Correlation between scratch counts and LPC determined for particles with diameter !0.469 mm (SO 3 + SO 5 ) with mixtures of slurry A (0 wt% of slurry B) and slurry B. Weight percentage of slurry B for the mixtures is labeled at the corresponding data point.…”

mentioning

confidence: 99%

Consumables for Advanced Shallow Trench Isolation (STI)

Burkhard

2007

Microelectronic Applications of Chemical Mechanical Planarization

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“…According to the authors, the material with PVA had no cracks, unlike that observed by SEM in materials without PVA. Similar results was observed by Ray et al [7] , that produced casting films with starch:PVA:glycerol of 60:40:30 and 50:50:30 (wt%). Films with higher PVA content had better mechanical properties, and the polymers dispersion in the blend was improved, creating a more homogeneous network as observed by SEM and FT-IR.…”

Section: Introductionsupporting

confidence: 89%

Polyvinyl alcohol (PVA) molecular weight and extrusion temperature in starch/PVA biodegradable sheets

et al. 2018

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ObstractThe aim of this work was to study the relationship of chain size of partially hydrolyzed PVA blended with starch in properties of biodegradable sheets produced by thermoplastic extrusion. It was also studied the effect of extrusion temperature profile to determine the better PVA chain size and temperature profile to produce biodegradable sheets through a factorial design. The processability and the mechanical, thermal, optical, and microstructural properties of the biodegradable sheets were adequate, indicating that PVA/cassava starch blends have potential to replace conventional non-biodegradable polymers. Tensile strength and Young's modulus ranges from 1.0 to 2.6 and 3.0 to 6.9 MPa respectively, the elongation at break ranges from 42 to 421%. It was not possible to state a conclusive relationship between PVA molecular weight and the materials properties, but in general, PVA with medium molecular weight and high extrusion temperature profile promote an increase of mechanical properties of the sheets.

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“…Ray et al [64] prepared starch/polyvinyl alcohol blends, and glycerol was added as a plasticizer. Physi co mechanical and morphological properties were de termined.…”

Section: Tps/polyvinyl Alcohol Blendsmentioning

confidence: 99%

“…A schematic diagram showing the cross linking between starch, polyvinyl alcohol and epichlorhydrin (the cross linking agent), reported by Ray et al[64].…”

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confidence: 99%

Thermoplastic starch blends: A review of recent works

2012

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The aim of this review is to discuss the recent developments in thermoplastic starch blends. Starch has been considered as an excellent candidate to partially substitute synthetic polymer in packaging, agricul tural mulch and other low cost applications. Recently, the starch granules were plasticized using different plasticizers under heating and shearing, giving rise to a continues phase in the form of a viscous melt which can be processed using traditional plastic processing techniques, such as injection molding and extrusion. This kind of starch composites is called thermoplastic starch. Unfortunately, thermoplastic starch presents some drawbacks, such as low degradation temperatures, which make it difficult to process, poor mechanical properties and high water susceptibility. Much work has been carried out to overcome these drawbacks, including the combination of thermoplastic starch with other polymers, aiming at lowering the cost and enhancing the biodegradability of the final product.

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A Study of Physicomechanical and Morphological Properties of Starch/Poly(vinylalcohol) Based Films

Cited by 16 publications

References 17 publications

Consumables for Advanced Shallow Trench Isolation (STI)

Consumables for Advanced Shallow Trench Isolation (STI)

Polyvinyl alcohol (PVA) molecular weight and extrusion temperature in starch/PVA biodegradable sheets

Thermoplastic starch blends: A review of recent works

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