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Dave, Heena; Rao, P.V.C.; Desai, J. D.

doi:10.1023/a:1018566820659

Cited by 27 publications

(11 citation statements)

References 10 publications

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“…Given that composting can last several months depending on feedstocks used in the process [59, 60,70], and the polymer material degradation usually lasts from a few to several decades [23], the composting should be treated as a process supporting degradation of this type of materials before their further (natural) use. Similar studies were carried out by Dave et al [72] after introducing polyethylene films (mixed with compost at 1:1 ratio), which contained 25% and 30% addition of starch, into the soil. These authors demonstrated that during 48-week incubation, there was a loss in the weight of film with 25% and 30% additions of starch, by 3.18% and 8.36%, respectively.…”

Section: Stages Of Polymer Materials Decompositionsupporting

confidence: 57%

“…These authors demonstrated that during 48-week incubation, there was a loss in the weight of film with 25% and 30% additions of starch, by 3.18% and 8.36%, respectively. The next stage of the study conducted by Dave et al [72] involved the incubation of polymers separated from soil with microorganisms cultures (Bacillus, Streptomyces, and Aspergillus) isolated from previously composted materials. The application of such an inoculum caused that, after the next 6 weeks of incubation, the weight loss of polyethylene films with 25% and 30% additions of starch was 11.2% and 68.9%, respectively.…”

Section: Stages Of Polymer Materials Decompositionmentioning

confidence: 99%

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Degradation of Polyethylene and Biocomponent-Derived Polymer Materials: An Overview

2019

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The progressing degradation of the natural environment taking place over the last few decades and resulting from the systematically growing production of synthetic polymer materials led to the search for technological innovations aimed at producing environmentally friendly materials. Moreover, the increasing importance of sustainability promotes the development of bio-based and biodegradable polymers, sometimes misleadingly referred to as "bioplastics". Inability to degrade synthetic polymer materials and the problem of their persistence in the environment even for hundreds of years have caused the production of polymer materials with the addition of components that may accelerate their degradation more and more important in recent years. Additionally, the growing interest in environmental issues makes the requirements for new materials that will not significantly burden the environment higher. In Poland 29.1% and 26.8% of post-consumer polymer materials, respectively, were recovered and recycled, which means that up to 44.1% of post-consumer polymer materials were sent to municipal landfills. In 2017, for the first time in Poland, more plastics were recovered (55.9%) than stored (44.1%). However, by 2020, the level of energy recovery and recycling of post-consumer polymer materials in Poland should cover a total of 84.5%. When looking at the average values for Europe (recycling 31.1%, recovery 41.6%, storage 27.3%), it should be noted that Poland has much to catch up in this area and decisive actions should be taken to actually solve this problem. For this reason, it is extremely important to know the mechanisms responsible for the degradation of polymer materials and understand the interaction between these materials and abiotic and biotic factors that cause structural changes in polymers. Recent studies show that knowledge of the conditions determining the decomposition of polyethylene polymer materials and their impact on the natural environment is still insufficient. The literature reports reveal many contradictory theories, especially those that relate to the degradation of polymer materials in the soil environment. This study constitutes a comprehensive review of researches on (bio)degradation of polymer materials over the last decades, various methods of polymer structure modification to increase the degree of their degradability, as well as methods of recycling post-consumer polymer materials. Because there is a need to assess the performance of polymer innovations in terms of their biodegradability, especially under realistic waste management and environmental conditions, to avoid the unwanted release of plastic degradation products to the environment.

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Section: Stages Of Polymer Materials Decompositionsupporting

confidence: 57%

Section: Stages Of Polymer Materials Decompositionmentioning

confidence: 99%

Degradation of Polyethylene and Biocomponent-Derived Polymer Materials: An Overview

2019

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“…However starch suffers from demerits such as, poor processability, low dimensional stability and mechanical properties. Therefore, various modifications such as blending, derivation and graft copolymerization have been attempted, to develop starch based sustainable hydrogels with enhanced properties …”

Section: Introductionmentioning

confidence: 99%

Design and Development of Biogel Through Hierarchical Self‐Organisation of Biomolecule for Sustainable Antibacterial Applications

Raveendran

Devaki

2018

ChemistrySelect

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This paper describes the design and development of biogel (PPG) through self‐organisation of 3‐ pentadecylphenoxirane grafted polyglucopyranose and demonstration of its antimicrobial applications. 3‐pentadecylphenoxirane (PO) is an epoxy derivative of 3‐pentadecylphenol which is prepared from cashew nut shell liquid, an industrial waste of cashew industry. Polyglucopyranose (PG) is isolated from abundantly available underutlilised jackfruit seed starch. During grafting epoxy converted to hydroxyl group and the grafted molecule is endowed with large number of hydroxyl group, aromatic ring and long hydrocarbon chain which may undergo supramolecular organized structures through various noncovalent interactions such as electrostatic layer by layer assembling (ESLBL), π‐ π and van der Waals to form time dependent columnar and lamellar phases which are confirmed by various microscopic techniques, rheology and XRD. Later demonstrated its antimicrobial screening studies against Gram positive and Gram negative. Results suggests that the developed design strategy can be exploited for generating macroscopically self‐organised biogel systems from small biomolecules for futuristic high performing multifunctional especially antimicrobial applications.

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“…Therefore it is not suggested burying plastics in soil and no common disposal strategy can be adopted for the different polyolefins [23]. The biodegradability of PE/starch blends was investigated by a great number of authors [23][24][25][26][27][28][29][30][31][32][33]. Ojeda and co-workers [34] believe in an increase in the biodegradation rate of polyethylenes containing pro-oxidant and having preliminary weathering.…”

Section: Introductionmentioning

confidence: 99%