Biodegradability of Conventional Plastics

Biodegradability of Conventional Plastics PDF Author: Anjana Sarkar
Publisher: Elsevier
ISBN: 0323886116
Category : Technology & Engineering
Languages : en
Pages : 410

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Book Description
Biodegradability of Conventional Plastics: Opportunities, Challenges, and Misconceptions brings together innovative research on the biodegradability of conventional plastics, providing an extensive overview of approaches and strategies that may be implemented, while also highlighting other methods for alleviating the eventual environmental impact of plastics. The book begins by providing a lifecycle assessment of plastics, the environmental impact of plastic waste, and the factors that affect the biodegradability of plastics. The different categories and terminologies surrounding bio-based plastics and biodegradable plastics are then defined and explained in detail, as are the issues surrounding bioplastics. Other sections discuss biodegradability, approaches for enhanced biodegradability of various major types of plastics, including polyolefins, polyethylene terephthalate (PET), polystyrene, poly(vinyl chloride), automotive plastics and composites, and agricultural plastic waste. The final part of the book focuses on further techniques and emerging areas, including the utilization of chemical additives, nanomaterials, the role of microbes in terms of microbial degradation and microbial attaching, revalorization of plastic waste through industrial biotechnology, and future opportunities and challenges. Explains the fundamentals of plastic waste, lifecycle assessment and factors that influence the biodegradability of plastics Provides novel techniques for improved biodegradability, exploring areas such as pre-treatment, chemical additives, nanomaterials and microbial degradation Addresses current challenges and limitations in relation to bio-based and biodegradable plastics, microplastics and nanoplastics from bioplastics and plastic waste

Biodegradability of Conventional Plastics

Biodegradability of Conventional Plastics PDF Author: Anjana Sarkar
Publisher: Elsevier
ISBN: 0323886116
Category : Technology & Engineering
Languages : en
Pages : 410

Get Book Here

Book Description
Biodegradability of Conventional Plastics: Opportunities, Challenges, and Misconceptions brings together innovative research on the biodegradability of conventional plastics, providing an extensive overview of approaches and strategies that may be implemented, while also highlighting other methods for alleviating the eventual environmental impact of plastics. The book begins by providing a lifecycle assessment of plastics, the environmental impact of plastic waste, and the factors that affect the biodegradability of plastics. The different categories and terminologies surrounding bio-based plastics and biodegradable plastics are then defined and explained in detail, as are the issues surrounding bioplastics. Other sections discuss biodegradability, approaches for enhanced biodegradability of various major types of plastics, including polyolefins, polyethylene terephthalate (PET), polystyrene, poly(vinyl chloride), automotive plastics and composites, and agricultural plastic waste. The final part of the book focuses on further techniques and emerging areas, including the utilization of chemical additives, nanomaterials, the role of microbes in terms of microbial degradation and microbial attaching, revalorization of plastic waste through industrial biotechnology, and future opportunities and challenges. Explains the fundamentals of plastic waste, lifecycle assessment and factors that influence the biodegradability of plastics Provides novel techniques for improved biodegradability, exploring areas such as pre-treatment, chemical additives, nanomaterials and microbial degradation Addresses current challenges and limitations in relation to bio-based and biodegradable plastics, microplastics and nanoplastics from bioplastics and plastic waste

The Complete Book on Biodegradable Plastics and Polymers (Recent Developments, Properties, Analysis, Materials & Processes)

The Complete Book on Biodegradable Plastics and Polymers (Recent Developments, Properties, Analysis, Materials & Processes) PDF Author: NIIR Board of Consultants & Engineers
Publisher: ASIA PACIFIC BUSINESS PRESS Inc.
ISBN: 8178330350
Category : Plastics
Languages : en
Pages : 592

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Book Description
Biodegradable plastics made with plant based materials have been available for many years. The term biodegradable means that a substance is able to be broken down into simpler substances by the activities of living organisms, and therefore is unlikely to persist in the environment. There are many different standards used to measure biodegradability, with each country having its own. The requirements range from 90 per cent to 60 per cent decomposition of the product within 60 to 180 days of being placed in a standard composting environment. They may be composed of either bio plastics, which are plastics whose components are derived from renewable raw materials, or petroleum based plastics which contain additives. Biodegradability of plastics is dependent on the chemical structure of the material and on constitution of the final product, not just on the raw materials used for its production. Polyesters play a predominant role as biodegradable plastics due to their potentially hydrolysable ester bonds. Bio based polymers are divided into three categories based on their origin and production; polymer directly extracted from biomass, polymers produced by classical chemical synthesis using renewable biomass monomer and polymers produces by microorganisms or genetically modified bacteria. In response to public concern about the effects of plastics on the environment and in particular the damaging effects of sea litter on animals and birds, legislation is being enacted or is pending in many countries to ban non degradable packing, finishing nets etc. This book basically deals with biodegradable plastics developments and environmental impacts, hydro biodegradable and photo biodegradable, starch synthetic aliphatic polyester blends, difference between standards for biodegradation, polybutylene succinate (pbs) and polybutylene, recent developments in the biopolymer industry, recent advances in synthesis of biopolymers by traditional methodologies, polymers, environmentally degradable synthetic biodegradable polymers as medical devices, polymers produced from classical chemical synthesis from bio based monomers, potential bio based packaging materials, conventional packaging materials, environmental impact of bio based materials: biodegradability and compostability, etc. Environmentally acceptable degradable polymers have been defined as polymers that degrade in the environment by several mechanisms and culminate in complete biodegradation so that no residue remains in the environment. The present book gives thorough information to biodegradable plastic and polymers. This is an excellent book for scientists engineers, students and industrial researchers in the field of bio based materials. 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Advances in Sustainable Polymers

Advances in Sustainable Polymers PDF Author: Vimal Katiyar
Publisher: Springer Nature
ISBN: 9811512515
Category : Technology & Engineering
Languages : en
Pages : 421

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Book Description
This book discusses synthesis and characterization of sustainable polymers. The book covers opportunities and challenges of using sustainable polymers to replace existing petroleum based feedstock. This volume provides insights into the chemistry of polymerization, and discusses tailoring the properties of the polymers at the source in order fit requirements of specific applications. The book also covers processing of these polymers and their critical assessment. The book will be of use to chemists and engineers in the industry and academia working on sustainable polymers and their commercialization to replace dependence on petroleum-based polymers.

Degradation of Plastics

Degradation of Plastics PDF Author: Inamuddin
Publisher: Materials Research Forum LLC
ISBN: 1644901323
Category : Technology & Engineering
Languages : en
Pages : 334

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Book Description
The degradation of plastics is most important for the removal and recycling of plastic wastes. The book presents a comprehensive overview of the field. Topics covered include plastic degradation methods, mechanistic actions, biodegradation, involvement of enzymes, photocatalytic degradation and the use of cyanobacteria. Also covered are the market of degradable plastics and the environmental implications. Keywords: Degradable Plastics, Bioplastics, Biodegradable Plastics, Enzymes, Cyanobacteria, Photocatalytic Degradation, Wastewater Treatment, Degradable Plastic Market, Polyethylene, Polypropylene, Polystyrene, Polyvinyl Chloride, Polyurethane, and Polyethylene Terephthalate.

Biodegradation

Biodegradation PDF Author: Rolando Chamy
Publisher: BoD – Books on Demand
ISBN: 953511154X
Category : Technology & Engineering
Languages : en
Pages : 382

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Book Description
This book contains a collection of different biodegradation research activities where biological processes take place. The book has two main sections: A) Polymers and Surfactants Biodegradation and B) Biodegradation: Microbial Behaviour.

Biodegradable Plastics in the Open Environment

Biodegradable Plastics in the Open Environment PDF Author:
Publisher:
ISBN: 9789276237860
Category :
Languages : en
Pages :

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Book Description
This scientific opinion examines the conditions and criteria under which biodegradable plastic applications can be beneficial for the environment, and provides advice to inform decisions by society, consumers, businesses and policy makers. A growing global use of plastics has led to an increased amount of plastic waste in the environment, polluting and harming in land and marine ecosystems. Biodegradable plastics could be part of the solution to this problem, but they also present challenges. Biodegradability depends not only on the properties of the plastic material itself, but also on the environmental conditions. Many biodegradable plastic products only actually biodegrade in certain specific environments, or only in industrial composting facilities, rather than in the open environment more generally. The opinion recommends limiting the use of biodegradable plastics in the open environment to specific applications for which reduction, reuse, and recycling are not feasible, rather than as a solution for inappropriate waste management or littering. To realize the potential environmental benefits over conventional plastics, it recommends supporting the development of coherent testing and certification standards. It also identifies a need to promote the supply of accurate information on the properties, appropriate use and disposal, and limitations of biodegradable plastics and their applications to relevant user groups.

Biodegradable Plastics and Polymers

Biodegradable Plastics and Polymers PDF Author: Y. Doi
Publisher: Elsevier
ISBN: 1483290409
Category : Technology & Engineering
Languages : en
Pages : 646

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Book Description
In the past 25 years, plastic products have gained universal use not only in food, clothing and shelter, but also in the transportation, construction, medical and leisure industries. Whereas previously synthetic plastics were developed as durable substitute products, increasing concern for the global environment and solid waste management has resulted in an urgent demand for biodegradable plastics. The main topics of the Third International Scientific Workshop were as follows: 1. Biodegradation of polymers and plastics 2. Environmental degradation of plastics 3. Synthesis and properties of new biodegradable plastic materials 4. Biodegradation and morphologies of polymer blends 5. Development of biodegradation test methods 6. Governmental policy, regulation and standards.

Life Cycle Impact Assessment

Life Cycle Impact Assessment PDF Author: Michael Z. Hauschild
Publisher: Springer
ISBN: 9401797447
Category : Technology & Engineering
Languages : en
Pages : 345

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Book Description
This book offers a detailed presentation of the principles and practice of life cycle impact assessment. As a volume of the LCA compendium, the book is structured according to the LCIA framework developed by the International Organisation for Standardisation (ISO)passing through the phases of definition or selection of impact categories, category indicators and characterisation models (Classification): calculation of category indicator results (Characterisation); calculating the magnitude of category indicator results relative to reference information (Normalisation); and converting indicator results of different impact categories by using numerical factors based on value-choices (Weighting). Chapter one offers a historical overview of the development of life cycle impact assessment and presents the boundary conditions and the general principles and constraints of characterisation modelling in LCA. The second chapter outlines the considerations underlying the selection of impact categories and the classification or assignment of inventory flows into these categories. Chapters three through thirteen exploreall the impact categories that are commonly included in LCIA, discussing the characteristics of each followed by a review of midpoint and endpoint characterisation methods, metrics, uncertainties and new developments, and a discussion of research needs. Chapter-length treatment is accorded to Climate Change; Stratospheric Ozone Depletion; Human Toxicity; Particulate Matter Formation; Photochemical Ozone Formation; Ecotoxicity; Acidification; Eutrophication; Land Use; Water Use; and Abiotic Resource Use. The final two chapters map out the optional LCIA steps of Normalisation and Weighting.

Introduction to Bioplastics Engineering

Introduction to Bioplastics Engineering PDF Author: Syed Ali Ashter
Publisher: William Andrew
ISBN: 0323394078
Category : Science
Languages : en
Pages : 302

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Book Description
Introduction to Bioplastics Engineering is a practical, user-friendly reference for plastics engineers working with biopolymers and biodegradable plastics that addresses topics that are required for the successful development of cohesive bioplastic products. While there has been considerable demand for the use of bioplastics in industry, processing these bioplastics is a big challenge. The book provides plastics engineers and researchers with a fundamental, practical understanding of the differences between bioplastics and biodegradable polymers, along with guidance on the different methods used to process bioplastics. The book also covers additives and modifiers for biopolymers and their effect on properties. Examples include commercial applications of bioplastics, current bioplastics being developed, and future trends in the industry. This enables engineers, researchers, technicians, and students to understand the decisive relationship between different processing techniques, morphology, mechanical properties, and the further applications of bio-based polymers. The book presents a true engineering approach for the industry on the processing of biopolymers and biodegradable plastics – discussing the ease of use of the polymer, mechanical and thermal properties, rate of biodegradation in particular environments, and pros and cons of particular bioplastics. Enables engineers, researchers, technicians, and students to understand the decisive relationship between different processing techniques, morphology, mechanical properties, and the further applications of bio-based polymers. Covers additives and modifiers for biopolymers and their effect on properties Includes examples that illustrate the commercial applications of bioplastics, current bioplastics being developed, and future trends in the industry

Bio-Based and Biodegradable Plastics

Bio-Based and Biodegradable Plastics PDF Author: Alexey Iordanskii
Publisher:
ISBN: 9783039369683
Category :
Languages : en
Pages : 194

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Book Description
Over the few coming decades, bio-based and biodegradable plastics produced from sustainable bioresources should essentially substitute the prevalent synthetic plastics produced from exhaustible hydrocarbon fossils. To the greatest extend, this innovative trend has to apply to the packaging manufacturing area and especially to food packaging implementation. To supply the rapid production increment of biodegradable plastics, there must be provided the effective development of scientific-technical potential that promotes the comprehensive exploration of their structural, functional, and dynamic characteristics. In this regard, the transition from passive barrier materials preventing water and oxygen transport as well as bacteria infiltration to active functional packaging that ensures gas diffusion selectivity, antiseptics' and other modifiers' release should be based on the thorough study of biopolymer crystallinity, morphology, diffusivity, controlled biodegradability and life cycle assessment. This Special Issue accumulates the papers of international teams that devoted to scientific and industrial bases providing the biodegradable material development in the barrier and active packaging as well as in agricultural applications. We hope that book will bring great interest to the experts in the area of sustainable biopolymers.