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61,005 resultsShowing papers similar to Degradation of Polyethylene and Biocomponent-Derived Polymer Materials: An Overview
ClearBiodegradability of Plastics: Challenges and Misconceptions
This review addresses widespread misconceptions about plastic biodegradability, explaining why most plastics persist in the environment for decades to centuries despite industry marketing claims. It clarifies the distinction between degradable, biodegradable, and compostable plastics and explains why real-world conditions rarely support plastic breakdown.
Review on the Biological Degradation of Polymers in Various Environments
This review provides an overview of how biodegradable plastics degrade under different environmental conditions including soil, freshwater, marine, and composting environments. It finds that biodegradability is a material property strongly dependent on environmental conditions, and that many so-called biodegradable plastics degrade far more slowly in nature than in controlled test conditions.
Novel Approach in Biodegradation of Synthetic Thermoplastic Polymers: An Overview
This review examines microbial biodegradation pathways for synthetic thermoplastic polymers including polyethylene, highlighting the ecological threat of non-degradable plastics and discussing the mechanisms by which microorganisms can break down both natural and synthetic polymers.
Comparing environmental fate and ecotoxicity of conventional and biodegradable plastics: A critical review
This review compares biodegradable and conventional plastics and finds that biodegradable plastics do not always fully break down under natural conditions -- instead they often fragment into microplastics and release chemical additives, similar to conventional plastics. Both types can absorb pollutants from the environment and cause toxic effects in living organisms, challenging the assumption that biodegradable plastics are a safe alternative.
Occurrence, Degradation, and Effect of Polymer-Based Materials in the Environment
This review covers the occurrence, environmental degradation, and ecological effects of polymer-based materials across terrestrial and aquatic environments, including both conventional and biodegradable plastics. It highlights the chemical complexity of plastics — including additives and degradation products — as a key factor determining environmental risk beyond just the physical presence of particles.
Recent developments in bio-based polyethylene: Degradation studies, waste management and recycling
Researchers reviewed the current state of bio-based polyethylene — plastics made from plants instead of oil — examining how well they degrade, how they can be recycled, and what still needs to improve before they can genuinely replace conventional plastics, noting that weight loss from degradation ranged widely from 1 to 47% depending on conditions.
Environmental risk, toxicity, and biodegradation of polyethylene: a review.
This review covers the environmental persistence, toxicity, and potential biodegradation of polyethylene — one of the world's most widely produced plastics. Because polyethylene does not biodegrade, it persists for decades and breaks into microplastics that accumulate in soil, water, and living organisms, with documented toxic effects across multiple species.
Plastics Versus Bioplastics
This review contrasts conventional petroleum-based plastics with bioplastics, examining the limitations of recycling, the persistence of conventional plastics in the environment, and the potential of biopolymers to reduce plastic pollution.
Exploring biopolymer degradation: Environmental effects and future insights
This review examines how biopolymers degrade in the environment and evaluates their potential as sustainable alternatives to conventional plastics. While biopolymers offer environmental benefits like reduced pollution, the study notes challenges including slower-than-expected degradation in natural settings, potential microplastic generation, and the need for better standardized testing and supportive policies.
Application of biodegradable plastic and their environmental impacts: A revie
This review examines the environmental impacts of conventional petroleum-based plastics and evaluates biodegradable alternatives made from plant-based and other organic materials. Researchers found that while bioplastics show promise for reducing long-term pollution, their degradation rates vary significantly depending on environmental conditions. The study emphasizes that switching to biodegradable plastics alone is not enough without proper waste management infrastructure.
The degradation of single-use plastics and commercially viable bioplastics in the environment: A review
Researchers reviewed how conventional single-use plastics degrade over decades in natural environments versus how bioplastics biodegrade, finding that while alternatives like PBS and PHA show genuine biodegradation potential, most require specific industrial composting conditions that are rarely available in practice.
Degradation of supposedly biodegradable polymers in a real estuarine environment
Researchers tested the real-world degradation of supposedly biodegradable polymer bags in an estuarine environment over 180 days. The study found that bags made of PLA combined with PBAT and starch showed the most consistent degradation, while polyethylene bags with oxo-biodegradable additives and plain polyethylene showed minimal breakdown, questioning the effectiveness of some biodegradable alternatives in natural settings.
Biodegradable Polymers: The Future of Sustainable Plastic Alternatives
This review examines biodegradable polymers as sustainable alternatives to petroleum-based plastics, evaluating their potential to reduce microplastic pollution and ecological degradation. The authors assess the performance, environmental fate, and scalability of current biodegradable materials, identifying key challenges for widespread adoption across packaging and consumer product applications.
Fate of So‐Called Biodegradable Polymers in Seawater and Freshwater
This review examined whether so-called biodegradable plastics actually break down in seawater and freshwater environments, finding that most degrade far too slowly to offer any practical environmental benefit. The study warns that biodegradable labeling can create a false sense of security and may not reduce plastic accumulation in aquatic ecosystems.
Bridging Three Gaps in Biodegradable Plastics: Misconceptions and Truths About Biodegradation
This review addresses common misconceptions about biodegradable plastics, clarifying that degradation depends heavily on specific environmental conditions and that most biodegradable plastics do not fully break down in typical marine or soil environments.
Acceleration of Biodegradation Using Polymer Blends and Composites
This review examines how blending biodegradable polymers with other materials can tune both physical properties and biodegradation rates, noting that many biodegradable plastics degrade far more slowly than claimed. The authors stress that biodegradation claims require rigorous validation under realistic environmental conditions.
Biodegradation of Wasted Bioplastics in Natural and Industrial Environments: A Review
This review examines the biodegradation of bioplastics in both natural environments and industrial composting facilities, finding that many bioplastics degrade far more slowly outside industrial conditions than their labeling implies.
A Review on Plastic Pollution and Biodegradation of Polyethylene: Indian Region
This review examined plastic pollution and the biodegradation of polyethylene in the Indian context, surveying the broad category of organic polymers derived from petroleum, the acceleration of plastic use with population growth, and the microbial and chemical pathways by which polyethylene breaks down.
Polymer Biodegradability 2.0: A Holistic View on Polymer Biodegradation in Natural and Engineered Environments
Researchers reviewed the science of biodegradable plastics, examining how material properties and environmental conditions — such as temperature, moisture, and microbial activity — determine how quickly and completely a polymer breaks down. The chapter provides guidance for developing, testing, and regulating biodegradable alternatives to conventional plastics that persist in the environment.
A review on biodegradable polymer: Shortcomings, developments, and future direction
This review examines the current market share, classifications, and shortcomings of biodegradable polymer materials, synthesizing developments in this field and identifying future directions for reducing environmental pollution caused by conventional non-degradable polymer composites.
Recent Advances in Bioplastics: Application and Biodegradation
This review examines recent advances in bioplastics — including their applications in packaging, agriculture, and medicine — and critically evaluates their actual biodegradation performance in both natural and industrial environments, finding a significant gap between claims and real-world outcomes.
The Biodegradation of Plastic by Microorganisms
This review examines how the chemical composition of plastics influences their susceptibility to biodegradation by microorganisms, discussing the diverse biophysical-chemical properties of synthetic polymers that affect microbial degradation rates across different environmental contexts.
Bioplastics and the environment: Solution or Green Illusion?
This review critically evaluates whether bioplastics are genuinely environmentally friendly alternatives to conventional plastics, finding that many bioplastics degrade incompletely under real-world conditions, form persistent microplastic fragments, and may pose ecological risks comparable to conventional plastics.
Biodegradation of Different Types of Bioplastics through Composting—A Recent Trend in Green Recycling
This review examines the biodegradation of various bioplastics through composting and other environments. Researchers found that while bioplastics offer a promising sustainable alternative to petroleum-based plastics, their degradation rates are highly dependent on environmental conditions, and concerns remain about their leakage into the environment and long degradation timeframes during waste management.