Utilisation of natural wastes: Water-resistant semi-transparent paper for food packaging

Hosen, Md. Dulal; Islam, M. T.; Haque, Abu Naser Md Ahsanul; Naebe, Maryam

doi:10.1016/j.jclepro.2022.132665

Cited by 30 publications

(14 citation statements)

References 33 publications

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“…After 10 min, the contact angles of the coated films JCC6/TPU, JCC8/TPU, and JCC10/TPU (e.g., 106.4°, 104.8°, and 103.4°) were higher than 90° ±, indicating hydrophobic behavior. These values surpassed those of other coating films, such as CGT/PVA-EC (65°), BP1-EC and WH1-EC (83.6°, 72.4°), and 7% CGT film (46°) . Notably, the contact angle values for the JCC6/TPU and JCC8/TPU films remained above the hydrophobic level (i.e., 105.7° and 98.1°) up to 20 min, while that of the JCC10/TPU film dropped below the hydrophilic level (i.e., 68.6°), indicating biodegradability.…”

Section: Resultsmentioning

confidence: 79%

Utilization of Jute Waste for Sustainable Eco-Film Preparation

Islam,

Shiddique

et al. 2024

ACS Sustainable Resour. Manage.

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Jute caddis is the waste lignocellulosic biomass produced from jute fabric (sacking and hessian) production. Jute caddis cellulose (JCC) is a sustainable source and has high potential for being used in preparing biodegradable films. In this research, flexible, semi-transparent, biodegradable, and highly water-resistant eco-films were developed with cellulose extracted from JCC. The macroscopic cellulose was isolated from JCC by alkaline hydrolysis. Flexible and translucent cellulose films were produced with different amounts of JCC by vacuum filtration. Biodegradable thermoplastic polyurethane (TPU) was self-assembled and heat-pressed to fabricate semi-transparent films. The prepared eco-films were investigated using modern techniques for their mechanical properties, structural changes, thermal stability, and water resistance. With full flexibility (folding tolerance >100), the tensile strength of the JCC films was higher than that of low-density polyethylene (LDPE) films. The tensile strength of the TPU-coated JCC films was about 4 times higher than that of the pristine uncoated films. The films showed excellent water resistance, indicating a water contact angle higher than 100°, and the water droplet was found to be stable even after 20 min. A burning test of the JCC films showed that they produced ashes like paper burning, suggesting easy and clean biodegradation. The fabricated JCC eco-films could be a sustainable approach for replacing fossil-fuel-based petroleum plastic materials for packaging applications.

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Section: Resultsmentioning

confidence: 79%

Utilization of Jute Waste for Sustainable Eco-Film Preparation

Islam,

Shiddique

et al. 2024

ACS Sustainable Resour. Manage.

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“…This phenomenon, which reduces the hydrophilic property of the composite films, can be ascribed to the formation of Schiff’s base depleting the hydrophilic groups on the surface of the blending membrane [ 38 ]. A higher WCA represents a more effective resistance to water drop penetration [ 39 ]. Good hydrophilicity means that the water in food is more easily lost during storage, which then results in changes in taste and texture.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of a Novel Composite Edible Film Based on Hydroxypropyl Methyl Cellulose Grafted with Gelatin

Wang

Jiang

Chen

et al. 2023

Gels

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A novel composite edible film was synthesized by grafting gelatin chain onto hydroxypropyl methyl cellulose (HPMC) in the presence of glycerol (used as a plasticizer) using a solution polymerization technique. The reaction was carried out in homogeneous aqueous medium. Thermal properties, chemical structure, crystallinity, surface morphology, and mechanical and hydrophilic performance changes of HPMC caused by the addition of gelatin were investigated by differential scanning calorimetry, thermogravimetric, Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, universal testing machine and water contact angle. The results shows that HPMC and gelatin are miscible and the hydrophobic property of the blending film can be enhanced with the introduction of the gelatin. Moreover, the HPMC/gelatin blend films are flexible, and exhibit excellent compatibility, good mechanical properties and also thermal stability, and could be promising candidates for food packaging materials.

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“…The chemical structure of the WHP, WHP-C, and WHP-CH were characterized by Fourier transform infrared (FTIR) spectroscopy, and the results are shown in Figure 3 a. The spectrum of the WHP showed a typical O-H stretching peak of around 3339 cm −1 due to the identical chemical groups of lignocellulosic biomass [ 35 , 36 , 37 ]. Additionally, the main FTIR peaks of the WHP were observed at 1030 cm −1 (attributed to the C-O stretching) and 1627 cm −1 (corresponded to the C=O stretching due to hemicellulose) [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

“…The spectrum of the WHP showed a typical O-H stretching peak of around 3339 cm −1 due to the identical chemical groups of lignocellulosic biomass [ 35 , 36 , 37 ]. Additionally, the main FTIR peaks of the WHP were observed at 1030 cm −1 (attributed to the C-O stretching) and 1627 cm −1 (corresponded to the C=O stretching due to hemicellulose) [ 36 ]. The peak at 1247 cm −1 corresponded to ester, ether, or phenol compounds, and the peak at 1368 cm −1 corresponded to C-H bending vibration [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

Janus Biopolymer Sponge with Porous Structure Based on Water Hyacinth Petiole for Efficient Solar Steam Generation

Chen

et al. 2022

IJMS

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Solar-driven steam generation for desalination is a facile, sustainable, and energy-saving approach to produce clean freshwater. However, the complicated fabrication process, high cost, potential environmental impact, and salt crystallization of conventional evaporators limit their large-scale application. Herein, we present a sustainable Janus evaporator based on a biopolymer sponge from the water hyacinth petiole (WHP) for high-performance solar steam generation. The freeze-dried WHP maintained its original porous structure and aligned channels well, and therefore holds the capability for rapid water transport due to strong capillary action. The WHP coated with carbon nanotubes/ethyl cellulose paste on its surface (WHP-C) gains a good photothermal property, thus achieving an efficient solar steam generation with a rate of 1.50 kg m−2 h−1 under 1 sun irradiation. Moreover, the WHP-C after hydrophobic modification by fluorocarbon (WHP-CH) is endowed with high water repellency and exhibits good salt resistance during long-term solar desalination. Additionally, we demonstrate that a stable wet surface that enables efficient water supply and vapor escape is also significant to the successive desalination of a solar evaporator. Our work provides new insights into the high-value utilization of biomass waste, i.e., water hyacinth, and the development of sustainable interfacial solar evaporators for the environmentally friendly production of freshwater.

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Utilisation of natural wastes: Water-resistant semi-transparent paper for food packaging

Cited by 30 publications

References 33 publications

Utilization of Jute Waste for Sustainable Eco-Film Preparation

Utilization of Jute Waste for Sustainable Eco-Film Preparation

Synthesis and Characterization of a Novel Composite Edible Film Based on Hydroxypropyl Methyl Cellulose Grafted with Gelatin

Janus Biopolymer Sponge with Porous Structure Based on Water Hyacinth Petiole for Efficient Solar Steam Generation

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