Thermoplastic starch nanocomposites using cellulose-rich Chrysopogon zizanioides nanofibers

Dominic, C.D. Midhun; Rosa, Derval dos Santos; Camani, Paulo H.; Kumar, Athira S.; Neenu, K.V.; Begum, Pakiza; Dinakaran, D.; John, Effina; Baby, Donna; Thomas, Meenu; Joy, Jaison M.; Parameswaranpillai, Jyotishkumar; Saeb, Mohammad Reza

doi:10.1016/j.ijbiomac.2021.09.103

Cited by 8 publications

(2 citation statements)

References 76 publications

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“…The agglomeration of plasticizer at the interfacial interaction between the NC in TPCS/2BT3NC and amylopectin will induce the amylopectin chain to form a trans crystallization structure on the surface of the NC as reported in many studies [33,34,42,43]. According to their studies, the existence of trans crystallization can be detected through the appearance of a peak at 2θ = 21.5 • .…”

Section: Recrystallization Of Short-chain Amylopectin In the Tpcs Tpc...mentioning

confidence: 92%

Effective Aging Inhibition of the Thermoplastic Corn Starch Films through the Use of Green Hybrid Filler

et al. 2022

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Recently, hybrid fillers have been widely used to improve the properties of biopolymers. The synergistic effects of the hybrid fillers can have a positive impact on biopolymers, including thermoplastic corn starch film (TPCS). In this communication, we highlight the effectiveness of hybrid fillers in inhibiting the aging process of TPCS. The TPCS, thermoplastic corn starch composite films (TPCS-C), and hybrid thermoplastic corn starch composite film (TPCS-HC) were stored for 3 months to study the effect of hybrid filler on the starch retrogradation. TPCS-C and TPCS-HC were prepared by casting method with 5 wt% of fillers: nanocellulose (NC) and bentonite (BT). The alteration of the mechanical properties, aging behavior, and crystalline structure of the films were analyzed through the tensile test, Fourier transform infrared (FTIR), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and water absorption analysis. The obtained data were correlated to each other to analyze the retrogradation of the TPCS, which is the main factor that contributes to the aging process of the biopolymer. Results signify that incorporating the hybrid filler (NC + BT) in the TPCS/4BT1NC films has effectively prevented retrogradation of the starch molecules after being stored for 3 months. On the contrary, the virgin TPCS film showed the highest degree of retrogradation resulting in a significant decrement in the film’s flexibility. These findings proved the capability of the green hybrid filler in inhibiting the aging of the TPCS.

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Section: Recrystallization Of Short-chain Amylopectin In the Tpcs Tpc...mentioning

confidence: 92%

Effective Aging Inhibition of the Thermoplastic Corn Starch Films through the Use of Green Hybrid Filler

et al. 2022

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“…Different approaches have been used for the preparation of cellulose nanofibers [19]- [26], with the literature suggesting several physical and chemical treatments, including pre-treatment, bleaching and hydrolysis to obtain cellulose nanocrystals [27]- [31 ].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Cellulose Nanofibers Using Food Packaging

Gomes¹,

Falla²,

Leão³

2023

JER

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Solid waste from food packaging is accumulated in urban waste in abundance. It is widely recognized that the composition of this packaging is 75% paperboard, 20% polyethylene and 5% aluminum; so it is necessary to look for solutions to minimize the impact of discarding these packets. Currently, there is a great motivation to study renewable materials, which have great potential for the development of nanomaterials due to their physical-mechanical properties, properties such as: high surface area, colloidal stability, mechanical resistance and low toxicity. Thus, this work aimed to characterize the cellulose nanofibers obtained from milk food packaging. For this, the cellulose fibers contained in the paperboard underwent pretreatment, bleaching and then were subjected to acid hydrolysis. The resulting cellulose nanofibers were then characterized using Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermogravimetry (TG/DTG) and ray diffraction analysis. -X. The result of the FTIR spectra showed the efficiency of removal of non-cellulosic constituents. In addition, the cellulose nanofibers obtained were in the form of elongated needles, with a diameter between 6 and 9 nm, in addition to high crystallinity, good thermal stability and high dispersion.

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