Influence of electron beam radiation on structural and mechanical performance of thermoplastic cassava starch

Zain, Amirah Hulwani Mohd; Wahab, Mohamad Kahar Ab; Ismail, Hanafi

doi:10.1088/2053-1591/ab3ad3

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…These limitations are attributed to the hydroxyl group present on the starch molecule that makes it hydrophilic in nature and has limited performance. Hence, blending with other synthetic polymers such as polystyrene is one of the approaches to improve its properties [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Sago Starch Modifications on Polystyrene/Thermoplastic Starch Blends

et al. 2021

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The preparation of polystyrene/thermoplastic starch (PS/TPS) blends was divided into three stages. The first stage involved the preparation of TPS from sago starch. Then, for the second stage, PS was blended with TPS to produce a TPS/PS blend. The ratios of the TPS/PS blend were 20:80, 40:60, 60:40, and 80:20. The final stage was a modification of the composition of TPS/PS blends with succinic anhydride and ascorbic acid treatment. Both untreated and treated blends were characterized by their physical, thermal, and surface morphology properties. The obtained results indicate that modified blends have better tensile strength as the adhesion between TPS and PS was improved. This can be observed from SEM micrographs, as modified blends with succinic anhydride and ascorbic acid had smaller TPS dispersion in PS/TPS blends. The micrograph showed that there was no agglomeration and void formation in the TPS/PS blending process. Furthermore, modified blends show better thermal stability, as proved by thermogravimetric analysis. Water uptake into the TPS/PS blends also decreased after the modifications, and the structural analysis showed the formation of a new peak after the modification process.

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Section: Introductionmentioning

confidence: 99%

Effect of Sago Starch Modifications on Polystyrene/Thermoplastic Starch Blends

et al. 2021

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Recent advances in the preparation, characterization, and food application of starch-based hydrogels

Cui

Jia

Sun

et al. 2022

Carbohydrate Polymers

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Facile Strategy to Construct Metal–Organic Coordination Thermoplastic Starch with High Hydrophobicity, Glass-Transition Temperature, and Improved Shape Recovery

Tang

Chen

et al. 2020

ACS Sustainable Chem. Eng.

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In this work, a new type of metal–organic coordination polymer (MOP) was developed with thermoplastic starch (TPS) by reactive extrusion with zinc acetate (ZA). The resulting material, denoted as TPS-ZA, showed interfacial and mechanical improvements compared with crude TPS, including low wettability, good shape memory, high heat resistance, and high strength. The high hydrophobicity of TPS-ZA is surprising considering that ZA added in the TPS is highly soluble in water. Morphology characterizations revealed that the improvements were related to the micro/nanohierarchical architectures induced by coordination-driven self-assembly. Marked improvement in glass-transition temperature (from 48 to 89 °C) and transition from hydrophilicity to hydrophobicity (water contact angle from 56 to 118°) are noted for TPS-ZA with a ZA content of only 3−5 wt %. Meanwhile, the novel cluster aggregates serving as netpoints endow TPS-ZA with significant improvement in shape memory, with nearly 180° recovery angle and 99% shape fixity. We hence showcase reactive extrusion here as a facile strategy to prepare MOP with properties more suitable for daily applications. The prepared TPS-ZA may serve as a multifunctional disposable plastic to replace petroleum-based plastic material and remedy the pollution of “microplastics”.

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Influence of electron beam radiation on structural and mechanical performance of thermoplastic cassava starch

Cited by 4 publications

References 21 publications

Effect of Sago Starch Modifications on Polystyrene/Thermoplastic Starch Blends

Effect of Sago Starch Modifications on Polystyrene/Thermoplastic Starch Blends

Recent advances in the preparation, characterization, and food application of starch-based hydrogels

Facile Strategy to Construct Metal–Organic Coordination Thermoplastic Starch with High Hydrophobicity, Glass-Transition Temperature, and Improved Shape Recovery

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