Biodegradable Polymer Compositions Based on Polyolefins

Попов, А. А.

doi:10.1134/s0965545x21060092

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…Отмечается [17], что наиболее распространенный способ оценки биодеградации по степени изменения массы образцов в процессе испытаний, является неуниверсальным.…”

Section: деревопереработка химические технологииunclassified

Methodology for assessing the degree of biodegradability of plastics based on lignocellulose-containing raw materials without resins

Artemov,

Ershova,

Shkuro

et al. 2024

Forestry Engineering Journal

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Currently, technologies have been developed and implemented to transform the biomass from lignocellulosic-containing raw materials (including wood), without the addition of synthetic binders, into composite materials with various applications. For these materials, the common term resinless "plastic", or abbreviated PWR, has become somewhat popular. The current test methods for determining the extent of biodegradation are not suitable for PWR. This facilitates determining the degree of biodegradability of PWR based on various pressing materials. A scoring-rating system was developed to assess the degree of biodegradability of PWR based on lignocellulosic raw materials, using the identified 5 main criteria when aged 85 days in the soil. The proposed scoring system was tested on samples of PWR derived from various pressing materials, including pine, birch, and larch sawdust, vegetative residues of knotweed and industrial hemp, wheat bran, and deciduous litter. The test results of PWR were processed using the proposed evaluation methodology, helping determine the potential for biodegradation of the investigated materials. In general, PWR-based materials can be characterized as materials with a high potential for biodegradation. The most potential for biodegradation can be considered PWR based on pine and leaf litter, which degrade as much as possible in the soil in 85 days. The established individual degrees of biodegradability of PWR based on various lignocellulosic raw materials were interpreted in the context of previously obtained results regarding the properties of the original raw materials. Thus, a conclusion was drawn that the degree of biodegradability of PWR is influenced by the properties of the original plant raw material under identical piezothermal treatment conditions during material production.

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Section: деревопереработка химические технологииunclassified

Methodology for assessing the degree of biodegradability of plastics based on lignocellulose-containing raw materials without resins

Artemov,

Ershova,

Shkuro

et al. 2024

Forestry Engineering Journal

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“…Usually, a biodegradable polymer matrix is used to create biocomposites, to obtain a completely biodegradable biocomposite [ 3 , 4 ]. However, polyolefin matrices may also be used because they are significantly cheaper and usually outperform completely biodegradable polymer matrices in terms of consumer properties [ 5 ]. In this case, basic polymers, such as polyethylene [ 6 ], polypropylene [ 7 , 8 ], and copolymers of ethylene with octene [ 9 ] or vinyl acetate [ 10 ], may be used as a matrix.…”

Section: Introductionmentioning

confidence: 99%

Influence of Vinyl Acetate Content and Melt Flow Index of Ethylene-Vinyl Acetate Copolymer on Physico-Mechanical and Physico-Chemical Properties of Highly Filled Biocomposites

et al. 2023

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Highly filled biocomposites may be used as biodegradable masterbatches that manufacturers add to traditional polymers for making plastic goods more biodegradable. Biocomposites based on various trademarks of ethylene-vinyl acetate copolymer (EVA) and natural vegetable fillers (wood flour and microcrystalline cellulose) were studied. The EVA trademarks differed both in terms of the melt flow index and in the content of vinyl acetate groups. The composites were created as superconcentrates (or masterbatches) for the production of biodegradable materials based on vegetable fillers with polyolefin matrices. The filler content in biocomposites was 50, 60, 70 wt.%. The influence of the content of vinyl acetate in the copolymer and its melt flow index on the physico-mechanical and rheological properties of highly filled biocomposites was evaluated. As a result, one EVA trademark with high molecular weight that has a high content of VA was chosen because of its optimal parameters for creating highly filled composites with natural fillers.

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“…Due to the strict legal environmental requirements and regulations concerning the disposal of polymers once they become waste after use, biodegradable materials have attracted the attention of a large number of researchers in recent years [1]. Corn starch has been widely reported to be one of the most biodegradable materials that can be used in a wide range of industrial and commercial applications [2][3][4][5][6][7]. No one can deny that the ever-increasing environmental issues of sustainability and ecology have been the primary motivators for the development of bio-based biodegradable plastics.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of biocomposites based polypropylene/thermoplastic starch- reinforced with natural STIPA TENACISSIMA fibers and PP-g-MA

et al. 2022

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The current work aims to develop environmentally friendly plastic materials by preparing a composite polypropylene/thermoplastic starch (PP/TPS) using a melt-compounding process. In order to improve the compatibility of the two naturally incompatible polymers, natural Stipa tenacissima fibers treated on their surfaces and polypropylene (PP) pellets grafted with Maleic Anhydride (MA) were added to the mixture (PP and TPS). The mixture was then prepared using the melt-mixing method in various concentrations. X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA)/Differential thermal analysis (DTA), and mechanical tensile tests were then used to characterize the various formulations. SEM images revealed that the addition of (PP-g-MA) and natural fibers resulted in good starch plasticization and higher thermoplastic starch dispersion in the polypropylene matrix. It was also discovered that increasing the TPS concentration over the PP concentration tends to reduce the mechanical tensile properties. However, the composite with 15% TPS had the best mechanical properties. The thermogravimetric analysis (TGA) results revealed that the organic filler used acted as a reinforcing agent, increasing the thermal stability of the polypropylene/thermoplastic starch (PP/TPS) compound.

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Biodegradable Polymer Compositions Based on Polyolefins

Cited by 5 publications

References 39 publications

Methodology for assessing the degree of biodegradability of plastics based on lignocellulose-containing raw materials without resins

Methodology for assessing the degree of biodegradability of plastics based on lignocellulose-containing raw materials without resins

Influence of Vinyl Acetate Content and Melt Flow Index of Ethylene-Vinyl Acetate Copolymer on Physico-Mechanical and Physico-Chemical Properties of Highly Filled Biocomposites

Synthesis and characterization of biocomposites based polypropylene/thermoplastic starch- reinforced with natural STIPA TENACISSIMA fibers and PP-g-MA

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