Synthesis, characterization and biodegradation of bioplastic films produced from Parthenium hysterophorus by incorporating a plasticizer (PEG600)

Nigam, Shashwat; Das, Apurba K.; Patidar, Mukesh Kumar

doi:10.1016/j.envc.2021.100280

Cited by 30 publications

(17 citation statements)

References 69 publications

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“…The hydrophilic nature of the PEG had the potential to increase the permeability of water and oxygen into the plasticized CD, thereby accelerating its disintegration and biodegradation rates, compared to the neat CD [54]. However, it was noted in this study that the PEG plasticized CD (CD65-PEG35) had a slower biodegradation rate compared to the neat CD, in contrast to several studies in which PEG was used as a plasticizer and was observed to accelerate the biodegradation rates [55][56][57]. The water permeability of PEG depends on its molecular weight.…”

Section: Co 2 Evolutionmentioning

confidence: 69%

Melt Processible Biodegradable Blends of Polyethylene Glycol Plasticized Cellulose Diacetate with Polylactic Acid and Polybutylene Adipate-co-Terephthalate

Tselana

Muniyasamy

Ojijo

et al. 2023

Preprint

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Enhancing the melt processability of cellulose is key to broadening its applications. This is done via derivatization of cellulose, and subsequent plasticization and/or blending with other biopolymers, such as polylactic acid (PLA) and polybutylene adipate terephthalate (PBAT). However, derivatization of cellulose tends to reduce its biodegradability. Moreover, traditional plasticizers are non-biodegradable. In this study, we report the influence of polyethylene glycol (PEG) plasticizer on the melt processibility and biodegradability of cellulose diacetate (CD) and its blends with PLA and PBAT. CD was first plasticized with PEG (PEG-200) at 35 wt.%, and then blended with PLA and PBAT using a twin-screw extruder. Blends of the PEG plasticized CD with PLA at 40 wt.% and with PBAT at 60 wt.% were studied in detail. Dynamic mechanical analysis (DMA) showed that PEG reduced the glass transition of the CD from ca. 220°C to less than 100°C, indicating effective plasticization. Scanning electron microscopy revealed that the CD/PEG-PBAT blend had a smoother morphology implying some miscibility. The CD/PEG-PBAT blend at 60 wt.% PBAT had an elongation-to-break of 734%, whereas the CD/PEG-PLA blend had a tensile strength of 20.6 MPa, comparable to that of the PEG plasticized CD. After a 108-day incubation period under simulated aerobic composting, the CD/PEG-PBAT blend at 60 wt.% PBAT exhibited a biodegradation of 41%, whereas that of the CD/PEG-PLA at 40 wt.% PLA was 107%. This study showed that melt processible, biodegradable CD blends can be synthesized through plasticization with PEG and blending with PBAT or PLA.

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Section: Co 2 Evolutionmentioning

confidence: 69%

Melt Processible Biodegradable Blends of Polyethylene Glycol Plasticized Cellulose Diacetate with Polylactic Acid and Polybutylene Adipate-co-Terephthalate

Tselana

Muniyasamy

Ojijo

et al. 2023

Preprint

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“…Maximum stress development was reflected in the tensile strength of the film during the tensile testing [ 36 ]. The higher concentration of fenugreek decreased tensile strength and increased flexibility [ 37 ]. The presence of 15% of fenugreek exhibited the lowest tensile strength of 1.357 N/mm 2 , due to the increased water presence in the matrix of the film, provided by the hygroscopic nature of fenugreek.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Eco-Friendly Bio-Composite from Fenugreek as a Natural Resource

et al. 2022

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The present study show the usability of starch (tamarind) based-bio-composite film reinforced by fenugreek by various percentages to replace the traditional petrochemical plastics. The prepared bio-composite films were systematically characterized using the universal testing machine (UTM), soil degradation, scanning electron microscope (SEM), X-ray diffraction (XRD), thermogravimetric analyzer (TGA), and antibacterial tests. The experiments showed that a lower percentage of fenugreek improves biodegradation and mechanical strength. More than 60% of biodegradation occurred in only 30 days. Almost 3 N/mm2 tensile strength and 6.5% tensile strain were obtained. The presence of micropores confirmed by SEM images may accelerate the biodegradation process. Antibacterial activity was observed with two samples of synthesized bio-composite, due to photoactive compounds confirmed by FTIR spectra. The glass transition temperature was shown to be higher than the room temperature, with the help of thermal analysis. The prepared bio-composite containing 5% and 10% fenugreek showed antibacterial activities.

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“…Subsequently, they were dried in an oven at 105 °C for 72 h to eliminate all moisture. The biodegradability of the hydrogel samples was determined by assessing the mass loss, calculated as follows: normalm ass loss 0.25em ( % ) = M 0 − M 1 M 0 × 100 where M 0 is the dry mass before the test and M 1 is the dry mass after the test at any time.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Characterization of Environmentally Friendly β-Cyclodextrin Cross-Linked Cellulose/Poly(vinyl alcohol) Hydrogels for Adsorption of Malathion

Thongrueng,

Sudsakorn,

Charoenchaitrakool

et al. 2024

ACS Omega

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The widespread use of malathion enhances agricultural plant productivity by eliminating pests, weeds, and diseases, but it may lead to serious environmental pollution and potential health risks for humans and animals. To mitigate these issues, environmentally friendly hydrogel adsorbents for malathion were synthesized using biodegradable polymers, specifically cellulose, β-cyclodextrin (β-CD), poly(vinyl alcohol) (PVA), and biobased epichlorohydrin as a cross-linker. This study investigated the effects of the cellulose-to-PVA ratio and epichlorohydrin (ECH) content on the properties and malathion adsorption capabilities of β-CD/cellulose/PVA hydrogels. It was found that the gel content of the hydrogels increased with a higher cellulose-to PVA and ECH ratio, whereas the swelling ratio decreased, indicating a denser structure that impedes water permeation. In addition, various parameters affecting the malathion adsorption capacity of the hydrogel, namely, contact time, pH, hydrogel dosage, initial concentration of malathion, and temperature, were studied. The hydrogel prepared with a β-CD/cellulose/PVA ratio of 20:40:40 and 9 mL of ECH exhibited the highest malathion adsorption rate and capacity, which indicated an equilibrium adsorption capacity of 656.41 mg g–1 at an initial malathion concentration of 1000 mg L–1. Fourier transform infrared spectroscopy (FTIR), ζ-potential, and X-ray photoelectron spectroscopy (XPS) and NMR spectroscopy confirmed malathion adsorption within the hydrogel. The adsorption process followed intraparticle diffusion kinetics and corresponded to Freundlich isotherms, indicating multilayer adsorption on heterogeneous substrates within the adsorbent, facilitated by diffusion.

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Synthesis, characterization and biodegradation of bioplastic films produced from Parthenium hysterophorus by incorporating a plasticizer (PEG600)

Cited by 30 publications

References 69 publications

Melt Processible Biodegradable Blends of Polyethylene Glycol Plasticized Cellulose Diacetate with Polylactic Acid and Polybutylene Adipate-co-Terephthalate

Melt Processible Biodegradable Blends of Polyethylene Glycol Plasticized Cellulose Diacetate with Polylactic Acid and Polybutylene Adipate-co-Terephthalate

Synthesis and Characterization of Eco-Friendly Bio-Composite from Fenugreek as a Natural Resource

Synthesis and Characterization of Environmentally Friendly β-Cyclodextrin Cross-Linked Cellulose/Poly(vinyl alcohol) Hydrogels for Adsorption of Malathion

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