Preparation of Fine Bentonite Suspensions in Cavitation Fields

Dumitras, P. G.; Болога, М. К.; Shemyakova, T. D.

doi:10.1007/978-981-287-736-9_50

Cited by 1 publication

(1 citation statement)

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“…It has been reported that the application of hydrodynamic cavitation through sonic wave's energy for bentonite dispersion allows one to alter the dimension and size of the bentonite particles . We have applied this technique to assist exfoliation of bentonite before being used as filler in the TPS matrix.…”

Section: Resultsmentioning

confidence: 99%

Influence of Hybrid Cellulose/Bentonite Fillers on Structure, Ambient, and Low Temperature Tensile Properties of Thermoplastic Starch Composites

Osman

Ashafee

Adnan

et al. 2020

Polymer Engineering & Sci

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Thermoplastic starch (TPS) composites incorporating bentonite/cellulose (Bent/Cellulose) hybrid fillers in different ratios were prepared by film casting. Ultra‐sonication was done to promote good dispersion of filler in the host TPS and enhance the filler‐matrix interactions. Ultra‐sonicated fillers resulted in superior improvement in the tensile properties when the samples preconditioned at both ambient and 2°C. Upon preconditioning at 2°C, the TPS composite containing the ultra‐sonicated hybrid bent/cellulose in 80:20 ratio displayed the greatest tensile properties achievement among all the tested materials. These could be due to the effect of low temperature interactions between the starch, plasticizers, and the hybrid fillers. Differential scanning calorimetry analysis proved the changes in the crystallinity and dynamic characteristic of the TPS molecular chains which benefit in enhancing the biopolymer elongation at break and toughness, even when stored at refrigerated condition. In summary, the TPS/bent/cellulose composite has potential to be further developed for refrigerated food packaging application. POLYM. ENG. SCI., 60:810–822, 2020. © 2020 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%