Biodegradable Composites Based on Starch

Sherieva, M. L.; Шустов, Г. Б.; Shetov, R. A.

doi:10.1177/0307174x0503200608

Cited by 3 publications

(3 citation statements)

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“…It should be noted that in reality the properties of elastomer blends rarely follow a linear or predictable correlation with the individual components [71]. It is likely that the mixing of amorphous and crystalline polymer causes a decrease in the mechanical properties of the entire system [69].…”

Section: Discussionmentioning

confidence: 99%

Biodegradable Polymer Materials Based on Polyethylene and Natural Rubber: Acquiring, Investigation, Properties

et al. 2022

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The growing amount of synthetic polymeric materials is a great environmental problem that has to be solved as soon as possible. The main factor aggravating this problem is the abundance of products made from traditional synthetic polymer, such as packaging materials, cases, containers and other equipment with a short period of use, which quickly turns into polymer waste that pollutes the ecosystem for decades. In this paper, we consider the possibility of solving this problem by the development of biodegradable compositions based on polyolefins and elastomers. The addition of a natural component (natural rubber) to the matrix of the synthetic polymeric (polyethylene) leads to the significant changes in structure and properties of the material. Different aspects of mixing semicrystalline and amorphous polymers are discussed in the article. It was shown that addition of 10–50% wt. of the elastomers to the synthetic polymer increases wettability of the material, slightly reduces the mechanical properties, significantly affects the supramolecular structure of the crystalline phase of polyethylene and initiates microbiological degradation. In particular, in this work, the acquisition, structure and properties of biodegradable binary composites based on low-density polyethylene (LDPE) and natural rubber (NR) were studied. It has been shown that such compositions are biodegradable in soil under standard conditions.

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Section: Discussionmentioning

confidence: 99%

Biodegradable Polymer Materials Based on Polyethylene and Natural Rubber: Acquiring, Investigation, Properties

et al. 2022

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“…us, the biodegradability of PM does not depend on the resource base of the material but is determined by the size of the molecule, chemical structure, and the presence and nature of side groups, as well as by the supramolecular micro-and macrostructure. e increase in biodegradation is facilitated by the presence of groups in the polymer chain that are easily hydrolyzed, presence of substituents, an increase in the degree of chain substitution and the length of its sections between functional groups, and increased flexibility of macromolecules [8][9][10][24][25][26][27].…”

Section: General Information On Biodegradable Polymersmentioning

confidence: 99%

An Overview of the Main Trends in the Creation of Biodegradable Polymer Materials

Vikhareva

Buylova

Yarmuhametova

et al. 2021

Journal of Chemistry

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Plastic is one of the most demanded materials on the planet, and the increasing consumption of which contributes to the accumulation of significant amounts of waste based on it. For this reason, a new approach to the development of these materials has been formed: the production of polymers with constant operational characteristics during the period of consumption and capable of then being destroyed under the influence of environmental factors and being involved in the metabolic processes of natural biosystems. The paper outlines the prerequisites for the development of the field of creating biodegradable composite materials, as well as the main technical solutions for obtaining such polymeric materials. The main current solutions for reducing and regulating the degradation time of polymer materials are presented. The most promising ways of further development of the field of bioplastics production are described. Common types of polymers based on renewable raw materials, composites with their use, and modified materials from natural and synthetic polymers are considered.

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“…Один из наиболее эффективных способов ее решения заключается в создании композиционных материалов на основе полиолефинов и различных природных наполнителей [6][7]. Наиболее часто для наполнения полимерных композитов используют крахмал [7][8][9] 10. Влияние содержания винилацетатных звеньев в этилен-винилацетатном сополимере на свойства древесно-полимерных композитов / А. Е. Шкуро [и др.]…”

Section: обзор литературыunclassified

Manufacturing Biodegradable Composite Materials Based on Polyethylene and Functionalized by Alcoholysis of Ethylene-Vinyl Acetate Copolymer

Shabarin¹,

Shabarin²,

Vodyakov³

2016

VMU

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Введение. Непрерывный рост производства и потребления полимерной упаковки порождает серьезную проблему ее утилизации, которая носит, прежде всего, экологический характер, поскольку содержимое свалок, разлагаясь в течение десятков лет, выделяет токсичные соединения, отравляющие окружающую среду. Работа посвящена получению и изучению физико-механических и реологических характеристик биоразлагаемых композиционных материалов на основе полиэтилена и крахмала. Материалы и методы. В работе были использованы полиэтилен марки ПЭНД 273-83 (ГОСТ 16338-85), сэвилен марки СЭВА 12206-007 (ТУ 6-05-1636-97), наполнителем являлся картофельный крахмал (ГОСТ 53876-2010). Фунционализацию СЭВА проводили в 30%-ном этанольном растворе КОН при температуре 80 ºС в течение 3 ч. Компаундирование компонентов проводилось на лабораторном двухроторном смесителе «Haake PolyLab Rheomix 600 OS» с роторами «Banbury». Формование пластин для упругопрочностных и реологических исследований проводили на гидравлическом прессе «Gibitre», упругопрочностные и реологические испытания проведены соответственно на разрывной машине «UAI-7000 М» и реометре «Haake MARS III». Влажность наполнителя (крахмала) определяли термогравиметрическим методом на анализаторе влажности «Эвлас-2М». Результаты исследования. Показано, что наполнитель не должен содержать > 7 % влаги. Методом щелочного алкоголиза проведена функционализация сополимера этилена с винилацетатом (СЭВА). Наличие гидроксильных групп в полимере подтверждено методом ИК-спектроскопии. Применение в качестве компатибилизатора функционализированного методом алкоголиза (СЭВАФ) позволило значительно улучшить физико-механические и реологические характеристики композиционных материалов. Оптимальное содержание СЭВАФ в компаунде, согласно результатам экспериментов, составляет 10 %. Обсуждение и заключение. Применение СЭВАФ в качестве компатибилизатора позволяет значительно улучшить физико-механические и реологические характеристики биоразлагаемых композиционных материалов и открывает перспективы применения более дешевых крахмалосодержащих наполнителей-отходов агропромышленного комплекса и пищевой промышленности.

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Biodegradable Composites Based on Starch

Abstract: With progress, modern life also brings many problems, signifi cant among which are ecological problems.

Cited by 3 publications

References 0 publications

Biodegradable Polymer Materials Based on Polyethylene and Natural Rubber: Acquiring, Investigation, Properties

Biodegradable Polymer Materials Based on Polyethylene and Natural Rubber: Acquiring, Investigation, Properties

An Overview of the Main Trends in the Creation of Biodegradable Polymer Materials

Manufacturing Biodegradable Composite Materials Based on Polyethylene and Functionalized by Alcoholysis of Ethylene-Vinyl Acetate Copolymer

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