Influence of Moringa oleifera derivates in blends of PBAT/PLA with LDPE

Quintão, Cristiane Medina Finzi; Novack, Kátia Monteiro; Bernardes-Silva, Ana Cláudia; Silva, Thais Dhayane; Moreira, Lucas Emiliano Souza; Braga, Luiza E. M.

doi:10.1590/0104-1428.05717

Cited by 6 publications

(3 citation statements)

References 33 publications

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“…More importantly, their mechanical properties are so practically useful and similar to those of low density polyethylene. [1] Fruits and vegetables are typically consumed when fresh or as the raw materials for food processing. They are raw materials that easily spoil because of high amount of water and protein content.…”

Section: Introductionmentioning

confidence: 99%

Effect of essential oil on properties of PBAT/PBS for bio-packaging films

Threepopnatkul¹,

Charoendee²,

Wiriyamontree³

et al. 2022

J. Phys.: Conf. Ser.

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This research aimed to study the effect of essential oil on the mechanical and barrier properties of bio-packaging films from a polymer blend between polybutylene adipate-co-terephthalate and polybutylene succinate (PBAT/PBS) using the β-cyclodextrin (βCD) as controlled release for sweet basil essential oil (ES). PBAT grafted with maleic anhydride (PBAT-g-MA) is used as compatibilizer between polymer matrix and β-cyclodextrin. The MA grating content is found to be 2.47% w/w. The preparation of PBAT/PBS blend films with two weight ratios includes 80/20 and 60/40 with varied βCD-ES contents of 0, 0.25, 0.50, 0.75 and 1.00 phr. Tensile strength and elongation at break were increased when β-cyclodextrin with essestial oil decreasing. Considering the ratio of PBAT/PBS, the mechanical properties i.e., tensile strength, Young’ s modulus and elongation at break of PBAT/PBS film at weight ratio of 80/20 incorporated with βCD-ES were higher than the ones at weight ratio of 60/40. For barrier properties, water vapor and oxygen permeability of PBAT/PBS films incorporated with lower essential oils content would be decreased. For antimicrobial test, PBAT/PBS with βCD-ES film packaging could effectively inhibit the mold growth on tomatoes after 40 days.

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Section: Introductionmentioning

confidence: 99%

Effect of essential oil on properties of PBAT/PBS for bio-packaging films

Threepopnatkul¹,

Charoendee²,

Wiriyamontree³

et al. 2022

J. Phys.: Conf. Ser.

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“…Essential oils such as castor, palm and Moringa oleifira oils were blended with several traditional polymers to enhance their processability. Their chemical structure, which contains various fatty acids, make them more vital besides its renewable nature (Wang et al, 2004;Fakayode and Ajav, 2016;Quintão et al, 2018). Essential oils were utilized as a coupling agent for enhancement of filler-rubber interaction (Kundu, 2000).…”

Section: Introductionmentioning

confidence: 99%

Essential oils as multifunctional additives in biodegradable linear low density polyethylene/starch blends

Shafik

Ward

Younan

2021

PRT

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Purpose This study aims to develop a biodegradable linear low-density polyethylene (LLDPE)/starch blends with improved mechanical and flow characteristics and evaluate the probability of using essential oils such as Moringa oleifira and castor oils as green plasticizers and compatibilizers to avoid using harmful chemicals. Design/methodology/approach Corn starch was blended with LLDPE through the melt blending technique. The corn starch content was varied from 5 to 40 phr in LLDPE. To enhance poor mechanical characteristic of the LLDPE/starch, essential oils such as M. oleifira and castor oils were incorporated into the composites with different concentrations starting from 1 to 7 phr. The essential oils’ effect on mechanical, flow character, thermal stability and electrical properties of the LLDPE/starch was also investigated. The morphology of LLDPE/starch containing essential oils was also investigated by scanning electron microscope (SEM). Findings The results revealed that increasing the corn starch content had an adverse effect on mechanical and flow characteristics of the composites, whereas incorporation of essential oils had increased the flow and mechanical characteristics of the composites. Also, dielectric measurements revealed that permittivity and dielectric loss increased by increasing oil content. Moreover, the values of the blends containing castor oil are higher compared to that containing M. oleifira. The SEM micrographs illustrated that the presence of essential oils in LLDPE/starch enhanced the distribution and the homogeneity of the composites, and the particle size of starch granules became smaller in LLDPE matrix. Originality/value This study aims to introduce green plasticizer and compatibilizer to avoid using harmful chemicals in packaging industry.

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“…These blends form a new class of materials: biocomposites that are obtained from based on biodegradable polymers as matrix [6,[28][29][30] . Poly(lactic acid) (PLA) and poly(butylene adipate-co-terephthalate) (PBAT) are among the polymers most investigated as possible matrices for the formation of these blends, on account of chemical and mechanical properties, besides being are both biodegradables [30][31][32] .…”

Section: Introductionmentioning

confidence: 99%

Bionanocomposites of PLA/PBAT/organophilic clay: preparation and characterization

et al. 2019

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The objective of this study was to develop bionanocomposites from blends of poly(lactic acid) (PLA) and poly(butylene adipate-co-terephthalate) (PBAT) and from 3% and 6% bentonite clay. Initially, the bentonite clay was treated with Praepagen salt, and the properties of the modified clay were evaluated. After the organophilization of the clay was completed, 50:50 blends of PLA/PBAT were prepared, and 3 and 6% clay was added. To test the dispersion of the system, the blending sequence was performed using eight different sequences for the addition of clay to the PLA/PBAT matrices. The mixtures were prepared in a twin screw extruder, and the specimens were subsequently injection molded. The investigated mechanical and morphological properties included the yield strength, yield strain, tensile and bending elastic modulus, and scanning and transmission electron microscopy analyses. The results of this study showed increases of the mechanical properties when nanoparticles were added and the formation of bionanocomposites with intercalated structures.

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Influence of Moringa oleifera derivates in blends of PBAT/PLA with LDPE

Cited by 6 publications

References 33 publications

Effect of essential oil on properties of PBAT/PBS for bio-packaging films

Effect of essential oil on properties of PBAT/PBS for bio-packaging films

Essential oils as multifunctional additives in biodegradable linear low density polyethylene/starch blends

Bionanocomposites of PLA/PBAT/organophilic clay: preparation and characterization

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