Functionalization and use of grape stalks as poly(butylene succinate) (PBS) reinforcing fillers

Nanni, Alessandro; Cancelli, Umberto; Montevecchi, Giuseppe; Masino, Francesca; Messori, Massimo; Antonelli, Andrea

doi:10.1016/j.wasman.2021.03.050

Cited by 32 publications

(32 citation statements)

References 66 publications

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“…The thermal degradation of neat LDPE and PBS was different and there was only a single-step degradation process. It was shown that pure polymers demonstrated a single-step degradation, about 400–500 °C for LDPE [ 79 , 80 ] and 300–400 °C for PBS [ 81 ]. It is noted that the degradation of polyethylene is related to the C-C backbone scission reactions caused by the oxygen with the formation of radicals that can decompose easily, generating oxidized species [ 45 ].…”

Section: Resultsmentioning

confidence: 99%

Blending of Low-Density Polyethylene and Poly(Butylene Succinate) (LDPE/PBS) with Polyethylene–Graft–Maleic Anhydride (PE–g–MA) as a Compatibilizer on the Phase Morphology, Mechanical and Thermal Properties

et al. 2023

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It is of significant concern that the buildup of non-biodegradable plastic waste in the environment may result in long-term issues with the environment, the economy and waste management. In this study, low-density polyethylene (LDPE) was compounded with different contents of poly(butylene succinate) (PBS) at 10–50 wt.%, to evaluate the potential of replacing commercial plastics with a biodegradable renewable polymer, PBS for packaging applications. The morphological, mechanical and thermal properties of the LDPE/PBS blends were examined in relation to the effect of polyethylene–graft–maleic anhydride (PE–g–MA) as a compatibilizer. LDPE/PBS/PE–g–MA blends were fabricated via the melt blending method using an internal mixer and then were compression molded into test samples. The presence of LDPE, PBS and PE–g–MA individually in the matrix for each blend presented physical interaction between the constituents, as shown by Fourier-transform infrared spectroscopy (FTIR). The morphology of LDPE/PBS/PE–g–MA blends showed improved compatibility and homogeneity between the LDPE matrix and PBS phase. Compatibilized LDPE/PBS blends showed an improvement in the tensile strength, with 5 phr of compatibilizer providing the optimal content. The thermal stability of LDPE/PBS blends decreased with higher PBS content and the thermal stability of compatibilized blends was higher in contrast to the uncompatibilized blends. Therefore, our research demonstrated that the partial substitution of LDPE with a biodegradable PBS and the incorporation of the PE–g–MA compatibilizer could develop an innovative blend with improved structural, mechanical and thermal properties.

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Section: Resultsmentioning

confidence: 99%

Blending of Low-Density Polyethylene and Poly(Butylene Succinate) (LDPE/PBS) with Polyethylene–Graft–Maleic Anhydride (PE–g–MA) as a Compatibilizer on the Phase Morphology, Mechanical and Thermal Properties

et al. 2023

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“…The elongation observed for 20% untreated TPS plasticized with urea and glycerol was 21% and 19% and it was observed to decrease father to 7% and 3% as the filler loading increases when compared to the acetylated TPS. The effects of 10% modified grape stalks on the properties of polybutylene succinate (PBS) were studied [46]. Among the grape stalks-derived fillers, acetylated grape stalk showed the best mechanical properties performance.…”

Section: Comparative Study Of Acetylation Modificationsmentioning

confidence: 99%

“…Among the grape stalks-derived fillers, acetylated grape stalk showed the best mechanical properties performance. Compared with the study by Nanni et al [46], lignocellulosic grape stalks were substituted with corn starch to study the effect of acetylation. Moreover, the effect of higher filler loading of acetylated starch on the properties of PBAT was studied.…”

Section: Comparative Study Of Acetylation Modificationsmentioning

confidence: 99%

Effect of Plasticizer and Compatibilizer on Properties of Polybutylene adipate-co-terephthalate (PBAT) with Acetylated Starch

Perumal

Sreekan

Hamid

et al. 2023

Preprint

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Immiscible and incompatibility between the hydrophilic fiber phase and hydrophobic matrix phase results in a poor stress transfer between the two phases and deterioration in mechanical, physical, and barrier properties. Therefore, this study aims to enhance the compatibility of hydrophobic polybutylene adipate-co-terephthalate (PBAT) and hydrophilic corn starch (CS) by substituting native corn starch with acetylated corn starch. The acetylation treatment was used to increase the hydrophobicity of CS. The native corn starch was used as a reference to study the effect of acetylation. Challenges in incorporating a high amount of hydrophilic natural filler into hydrophobic PBAT were overcome by adding plasticizer; glycerol and compatibilizers; maleic anhydride (MAH) and Dicumyl peroxide (DCP). The composite films were characterized by tensile properties, differential scanning calorimetry (DSC), contact angle (CA) measurement, and thermogravimetric analysis (TGA). The morphology of the composites was examined by scanning electron microscopy (SEM). The tensile properties of PBAT/ACS were improved by adding a compatibilizer. Meanwhile, adding plasticizer tends to improve the tensile properties of PBAT/CS. PBAT/ACS/MAH composite possessed a tensile strength of 15.47 MPa, modulus of 95.30 MPa, and strain at break of 170.81%, while PBAT/CS/30S composite possessed tensile strength of 8.59 MPa, modulus of 104.60 MPa and strain at break of 1037.91% which have potential use in packaging applications.

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“…Moreover, the addition of stilbenes to the wine can improve the intensity, purity, color and increase the storage time in the bottle. Functionalized grape stalk powder can also be used as a reinforcing filler in polybutylene succinate, usually used for packing and agriculture, allowing for the reduction in polymer consumption [ 53 ]. Moreover, grape stalks can be used as a bulking agent for composting processes [ 1 ].…”

Section: Winery Waste Compositionmentioning

confidence: 99%

Increasing Value of Winery Residues through Integrated Biorefinery Processes: A Review

2022

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The wine industry is one of the most relevant socio-economic activities in Europe. However, this industry represents a growing problem with negative effects on the environment since it produces large quantities of residues that need appropriate valorization or management. From the perspective of biorefinery and circular economy, the winery residues show high potential to be used for the formulation of new products. Due to the substantial quantities of phenolic compounds, flavonoids, and anthocyanins with high antioxidant potential in their matrix, these residues can be exploited by extracting bioactive compounds before using the remaining biomass for energy purposes or for producing fertilizers. Currently, there is an emphasis on the use of new and greener technologies in order to recover bioactive molecules from solid and liquid winery residues. Once the bio compounds are recovered, the remaining residues can be used for the production of energy through bioprocesses (biogas, bioethanol, bio-oil), thermal processes (pyrolysis, gasification combustion), or biofertilizers (compost), according to the biorefinery concept. This review mainly focuses on the discussion of the feasibility of the application of the biorefinery concept for winery residues. The transition from the lab-scale to the industrial-scale of the different technologies is still lacking and urgent in this sector.

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Functionalization and use of grape stalks as poly(butylene succinate) (PBS) reinforcing fillers

Cited by 32 publications

References 66 publications

Blending of Low-Density Polyethylene and Poly(Butylene Succinate) (LDPE/PBS) with Polyethylene–Graft–Maleic Anhydride (PE–g–MA) as a Compatibilizer on the Phase Morphology, Mechanical and Thermal Properties

Blending of Low-Density Polyethylene and Poly(Butylene Succinate) (LDPE/PBS) with Polyethylene–Graft–Maleic Anhydride (PE–g–MA) as a Compatibilizer on the Phase Morphology, Mechanical and Thermal Properties

Effect of Plasticizer and Compatibilizer on Properties of Polybutylene adipate-co-terephthalate (PBAT) with Acetylated Starch

Increasing Value of Winery Residues through Integrated Biorefinery Processes: A Review

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