Thermal Properties and Dynamic Characteristics of Electrospun Polylactide/Natural Rubber Fibers during Disintegration in Soil

Tertyshnaya, Yu. V.; Карпова, С. Г.; Подзорова, М. В.; Хватов, А. В.; Moskovskiy, Maksim

doi:10.3390/polym14051058

Cited by 18 publications

(13 citation statements)

References 50 publications

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“…Its strength (59.1 MPa) decreases with the introduction of dispersed additives in its polymer matrix. Therefore, there are numerous reports in the literature about the dispersion of these additives, either in certain plasticizers [ 47 ] or in elastic fillings [ 48 ]. However, it is essential not to exceed certain additive concentrations.…”

Section: Resultsmentioning

confidence: 99%

Antimicrobial Poly (Lactic Acid)/Copper Nanocomposites for Food Packaging Materials

et al. 2023

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Composites based on polylactic acid (PLA) and copper for food packaging applications were obtained. Copper clusters were synthesized in polyethylene glycols 400 and 600, respectively, using ascorbic acid as a reducing agent, by reactive milling. Copper clusters were characterized by Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FT-IR), and Ultraviolet-Visible (UV-VIS) spectroscopy. Copper/PLA composites containing Proviplast as plasticizer were characterized by FT-IR spectroscopy, mechanical tests, Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), absorption of the saline solution, contact angle, and antibacterial properties. It was observed that the concentration of Copper/PEG influenced the investigated properties. The mechanical properties of the samples decreased with the increasing of Copper/PEG concentration. We recorded the phase transformation temperatures and identified the exothermic or endothermic processes. The lowest absorption values were recorded in the case of the sample containing 1% Cu. The contact angle decreases with the increase in the concentration of the PEG 600-Cu mixture in the recipes. The increase in the content of Cu clusters favors the decrease in the temperature, taking place 15% wt mass losses. The obtained composites showed antibacterial properties for all tested strains. These materials could be used as alternative materials for obtaining biodegradable food packaging.

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Section: Resultsmentioning

confidence: 99%

Antimicrobial Poly (Lactic Acid)/Copper Nanocomposites for Food Packaging Materials

et al. 2023

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“…30 The neat PLA spectrum features the stretching vibration of the PLA's carbonyl group at 1749 À1 , and the intensity of this peak is decreasing with increasing amounts of P(3HB)(4HB). The peaks at 758 and 872 cm À1 , attributed to the crystalline and amorphous phases of PLA, 32 are also visible in IR spectra of the blends.…”

Section: Ftir Analysismentioning

confidence: 85%

Processing PLA/P(3HB)(4HB) blends for the manufacture of highly transparent, gas barrier and fully bio‐based films for compostable packaging applications

Aversa

Barletta

Koca

2023

J of Applied Polymer Sci

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In this study, the extrusion process of PLA/P(3HB)(4HB) blends was studied and the effect on mechanical, thermal and physical properties of the blends containing increasing amounts of P(3HB)(4HB) was evaluated. The blends were prepared by means of a twin screw extruder and subsequently film samples were manufactured using a lab scale cast extruder. A potential industrial application of the studied materials was also validated by testing the films on a pilot thermoforming machine for the production of food containers. The extrusion process demonstrated good processability of blends containing 10%, 20%, and 30% of P(3HB)(4HB). Increasing the amount of P(3HB)(4HB) up to 40% and 50%, processability problems occurred related to tackiness of the materials both during extrusion compounding and during cast extrusion. Both granules and films were characterized and thermo-physical and mechanical properties of the samples are hereinafter reported. The novel polymeric blends are found to be suitable for extrusion compounding, cast extrusion and thermoforming processes. Moreover, the blends exhibit enhanced performances in terms of flexibility and impact resistance as well as protection against gas permeation and boast exceptional transparency. Therefore, the innovative PLA/P(3HB) (4HB) blends prove to be suitable for the production of compostable single-use packaging requiring high transparency and gas barrier.

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“…An increase in the time of exposure of the polymer in aqueous medium at elevated temperature (45 and 70 °C) results in a reduction in the radical concentration and the correlation time. In [ 29 , 30 ], the agricultural application of PLA-based nonwoven fibers was considered. In [ 30 ], PLA/NR electrospun fabrics were used as substrates for growing basil.…”

Section: Introductionmentioning

confidence: 99%

“…In [ 29 , 30 ], the agricultural application of PLA-based nonwoven fibers was considered. In [ 30 ], PLA/NR electrospun fabrics were used as substrates for growing basil. The influence of soil exposure on the morphology, thermal, and structural-dynamic characteristics of polymer samples was studied.…”

Section: Introductionmentioning

confidence: 99%

Promising Agromaterials Based on Biodegradable Polymers: Polylactide and Poly-3-Hydroxybutyrate

et al. 2023

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Electrospun fabrics have unique properties due to their uniform morphology and high surface area to volume ratio. Ultrathin nonwoven fabrics are produced for many applications: biomedical, nanosensors, tissue engineering and filtration systems. In this work, nonwoven polylactide, polylactide/natural rubber, poly-3-hydroxybutyrate, and poly-3-hydroxybutyrate/nitrile butadiene rubber fabrics were prepared by electrospinning methods. The obtained fabric samples were used as substrates for the growth of winter wheat seeds “Yubileinaya 100” (Triticum aestivum L.). The stimulating effect of polymer substrates on seed germination and plant growth was shown. The structure and properties of nonwoven agromaterials were controlled by differential scanning calorimetry, IR-spectroscopy, and optical microscopy. The mechanical properties of the obtained fabrics before and after their utilization as substrates were studied. After the wheat growing experiment, the degree of crystallinity of PHB and PHB/NBR samples decreased by 12% and they completely lost their mechanical properties. It is shown that the main factors providing the efficiency of seed growth technology on polymer substrates are the chemical nature and structure of the biodegradable matrix.

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Thermal Properties and Dynamic Characteristics of Electrospun Polylactide/Natural Rubber Fibers during Disintegration in Soil

Cited by 18 publications

References 50 publications

Antimicrobial Poly (Lactic Acid)/Copper Nanocomposites for Food Packaging Materials

Antimicrobial Poly (Lactic Acid)/Copper Nanocomposites for Food Packaging Materials

Processing PLA/P(3HB)(4HB) blends for the manufacture of highly transparent, gas barrier and fully bio‐based films for compostable packaging applications

Promising Agromaterials Based on Biodegradable Polymers: Polylactide and Poly-3-Hydroxybutyrate

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