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Polylactic Acid/polycaprolactone Nanocomposite

Polylactic Acid/polycaprolactone Nanocomposite
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2015
  • Total pages :229
  • ISBN : OCLC:1051912018
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Summary : This article investigates the performance of polylactic acid (PLA)/polycaprolactone (PCL)/montmorillonite (MMT) nanocomposites toughened with metallocene-catalyzed linear low-density polyethylene (mLLDPE), in terms of mechanical, thermal, and morphological properties. All the results were compared and the influence of MMT and mLLDPE on the final properties was observed and reported. mLLDPE decreased the modulus and the strength of PLA/PCL and its nanocomposites due to its inherent lower rigidity compared to PLA/PCL nanocomposites. Moreover, incorporation of clay significantly increased mechanical and thermal stability of the nanocomposites. Scanning electron microscopic images confirmed that MMT acted as a compatibilizer, whereas it reduced the size of the droplets. It has been suggested that improvements in properties are related to good dispersion of clays within the matrix. However, further addition of MMT beyond 2parts per hundred (phr) level decreases all the properties of PLA/PCL/mLLDPE/MMT nanocomposites. X-Ray diffraction patterns were used to discover the reason of reduction in the properties of PLA/PCL/mLLDPE/MMT at 4phr. It was revealed that mLLDPE-toughened blends have intercalated structure below 4phr MMT content as the interlayer spacing decreased at 4phr MMT.

Advances in Natural Polymers

Advances in Natural Polymers
  • Author : Sabu Thomas,P. M. Visakh,Aji. P Mathew
  • Publisher :Unknown
  • Release Date :2012-12-14
  • Total pages :426
  • ISBN : 9783642209406
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Summary : The book summarizes in a comprehensive manner many of the recent technical research accomplishments in the area of natural polymers. It discusses the various attempts reporting on solving this problem from the point of view of the chemistry and the structure of natural polymers, highlighting the drawbacks and advantages of each method and proposal. Based on considerations of structure - property relations, it is possible to obtain fibers with improved strength by making use of their nanostructures and/or mesophase properties of natural polymers. The book is a unique book with contributions from the experts of the biomaterial area research. it covers all topics related to natural biomaterials such as natural rubber, cellulose, chitin, starch, hemicellulose, lignin, alginates, soy protein, casein and their bionanocomposites and applications. This book is a useful reference for scientists, academicians, research scholars and biotechnologists.

Plasticized Polylactic Acid/cellulose Nanocomposites Prepared Using Melt-extrusion and Liquid Feeding: Mechanical, Thermal and Optical Properties

Plasticized Polylactic Acid/cellulose Nanocomposites Prepared Using Melt-extrusion and Liquid Feeding: Mechanical, Thermal and Optical Properties
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2015
  • Total pages :229
  • ISBN : OCLC:1021151521
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Summary : Abstract: Plasticized polylactic acid (PLA) and its nanocomposite based on cellulose nanofibers (CNF) and glycerol triacetate (GTA) were prepared using a co-rotating twin-screw extruder. GTA was used as a plasticizer, a processing aid to facilitate nanofiber dispersion and as a liquid medium for their feeding. The optical, thermal and mechanical properties were characterized and the toughening mechanism was studied. The addition of GTA (20%) and CNF (1%) resulted in increased degree of crystallinity and decreased optical transparency. Furthermore, these additives showed a positive effect on the elongation at break and toughness, which increased from 2% to 31% and from 1 to 8 MJ/m 3, respectively. The combination of slippage of the nanofiber–matrix interface and a massive crazing effect as a result of the presence of CNF is suggested for PLA toughening. CNF were expected to restrict the spherulite growth and therefore enhance the craze nucleation.

Functional Biopolymers

Functional Biopolymers
  • Author : Vijay Kumar Thakur,Manju Kumari Thakur
  • Publisher :Unknown
  • Release Date :2017-10-25
  • Total pages :371
  • ISBN : 9783319664170
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Summary : This book presents the synthesis, processing and application of selected functional biopolymers as new advanced materials. It reviews theoretical advances as well as experimental results, opening new avenues for researchers in the field of polymers and sustainable materials. The book covers various aspects, including the structural analysis of functional biopolymers based materials; functional biopolymer blends; films, fibers, foams, composites and different advanced applications. A special emphasis is on cellulose-based functional polymers, but other types of functional biopolymers (e.g. from chitosan, starch, or plant oils) are also described.

Polylactic Acid

Polylactic Acid
  • Author : Lee Tin Sin,Bee Soo Tueen
  • Publisher :Unknown
  • Release Date :2019-06-15
  • Total pages :422
  • ISBN : 9780128144732
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Summary : Polylactic Acid: A Practical Guide for the Processing, Manufacturing, and Applications of PLA, Second Edition, provides a practical guide for engineers and scientists working in PLA and on the development of emerging new products. The current market situation for PLA and biodegradable polymers is described, along with applications across a range of market sectors. In addition, the mechanical, chemical, thermal, rheology and degradation properties are included. Updates include new chapters covering various processing methods, as well as recycling methods, and additives and processing aids. New applications cover a range of products (including 3D Printing), and an environmental assessment, including regulatory aspects. The book is not only a useful introduction to this topic, but also a practical, readily applicable reference book that will support decision-making in the plastics industry. Presents an essential reference for engineers, scientists and product designers considering switching to a sustainable plastic Covers the properties, synthesis and polymerization of PLA, along with processing techniques involved in fabricating parts from this polymer Includes critical new chapters on processing, additives, recycling and environmental considerations relating to PLA

Bio-based Polymers and Nanocomposites

Bio-based Polymers and Nanocomposites
  • Author : Muhammed Lamin Sanyang,Mohammad Jawaid
  • Publisher :Unknown
  • Release Date :2019-02-05
  • Total pages :272
  • ISBN : 9783030058258
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Summary : This book highlights the various types of polymer and nanocomposites that can be derived from biorenewable resources. It covers various aspects of biobased polymers and nanocomposites, including preparation, processing, properties, and performance, and the latest advances in these materials. It also includes recent findings from leading researchers in academia and industry, government, and private research laboratories around the globe, providing the latest information on biobased polymers and nanocomposites. Offering an overview of the entire production process, it guides readers through all stages, from the raw source materials, processing and property characterization to application performance. This book is suitable for professionals and researchers seeking in-depth practical information as well as the fundamental science behind this. It also serves as a point of reference for undergraduate and graduate students, as well as postdoctoral researchers working in the area of polymer and composites with a special emphasis on biobased materials.

Manufacturing, Characterisation and Properties of Advanced Nanocomposites

Manufacturing, Characterisation and Properties of Advanced Nanocomposites
  • Author : Yu Dong,Alokesh Pramanik,Dongyan Liu,Rehan Umer
  • Publisher :Unknown
  • Release Date :2018-09-13
  • Total pages :152
  • ISBN : 9783038971887
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Summary : This book is a printed edition of the Special Issue "Manufacturing, Characterisation and Properties of Advanced Nanocomposites" that was published in J. Compos. Sci.

Green Biocomposites

Green Biocomposites
  • Author : Mohammad Jawaid,Mohd Sapuan Salit,Othman Y Alothman
  • Publisher :Unknown
  • Release Date :2017-02-11
  • Total pages :345
  • ISBN : 9783319493824
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Summary : This book introduces the concept, design and application of green biocomposites, with a specific focus on the current demand for green biocomposites for automotive and aerospace components. It discusses the mathematical background, innovative approaches to physical modelling, analysis and design techniques. Including numerous illustrations, tables, case studies and exercises, the text summarises current research in the field. It is a valuable reference resource for researchers, students and scientists working in the field of materials science.

Silica and Clay Dispersed Polymer Nanocomposites

Silica and Clay Dispersed Polymer Nanocomposites
  • Author : Md Rezaur Rahman
  • Publisher :Unknown
  • Release Date :2018-06-13
  • Total pages :300
  • ISBN : 9780081021309
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Summary : The production of ‘polymer nanocomposites’ has recently gained considerable attention from both the academic and industrial community, especially in the area of nanoscience. This is mainly due to their enhanced improvements in physico-mechanical, thermal and barrier properties compared to micro and more conventional composites. Their nanoscale dimensions, biodegradable character, cost-effectiveness and sustainability have constituted a stimulus for this increasing interest. Currently there is no limit to the possibility of applications. However, despite all this progress, it is still difficult to achieve uniform dispersion between the filler and the matrix, as agglomerations form far too easily and the production of polymer nanocomposites with high mechanical and thermal properties is still limited. The authors of this proposed book, are of the opinion, that with the increase in scientific publications and the rapid progress in processing possibilities to produce nanocomposites based on various nanoscale fillers (silica/clay), a book that collects all of these scientific findings in one place would be timely and of great interest to both students and scientific researchers, who are concerned with the production, and application of nanocomposites as new innovative materials. The authors aim is to present the latest research findings on the fabrication, properties and applications of nanofillers as reinforcement in polymer nanocomposites. Particular emphasis will be placed on the introduction of various nanofillers (silica/clay) into different elastomeric polymer matrices that will enhance the properties of these materials and their applications. The book will provide an up-to-date review of major innovations in the field and act as a reference for future research in materials science and engineering, which is highly topical due to the demand to produce more sustainable and eco-friendly innovative advanced materials from elastomeric polymers. Emphasis on silica/clay as outstanding reinforcing potential in elastomeric polymer matrices Up-to-date on the most relevant innovations in the field of silica/clay nanocomposites and their extensive applications in advanced material science Establishes the most suitable fabrication methods, properties and applications as a solid foundation in materials science and engineering disciplines Includes the incorporation of dual nanofillers that significantly improve the properties of nanocomposites

Multifunctional and Nanoreinforced Polymers for Food Packaging

Multifunctional and Nanoreinforced Polymers for Food Packaging
  • Author : José-María Lagarón
  • Publisher :Unknown
  • Release Date :2011-05-09
  • Total pages :736
  • ISBN : 9780857092786
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Summary : Recent developments in multifunctional and nanoreinforced polymers have provided the opportunity to produce high barrier, active and intelligent food packaging which can help ensure, or even enhance, the quality and safety of packaged foods. Multifunctional and nanoreinforced polymers for food packaging provides a comprehensive review of novel polymers and polymer nanocomposites for use in food packaging. After an introductory chapter, Part one discusses nanofillers for plastics in food packaging. Chapters explore the use of passive and active nanoclays and hidrotalcites, cellulose nanofillers and electrospun nanofibers and nanocapsules. Part two investigates high barrier plastics for food packaging. Chapters assess the transport and high barrier properties of food packaging polymers such as ethylene-norbornene copolymers and advanced single-site polyolefins, nylon-MXD6 resins and ethylene-vinyl alcohol copolymers before going on to explore recent advances in various plastic packaging technologies such as modified atmosphere packaging (MAP), nanoscale inorganic coatings and functional barriers against migration. Part three reviews active and bioactive plastics in food packaging. Chapters investigate silver-based antimicrobial polymers, the incorporation of antimicrobial/antioxidant natural extracts into polymeric films, and biaoctive food packaging strategies. Part four examines nanotechnology in sustainable plastics with chapters examining the food packaging applications of polylactic acid (PLA) nanocomposites, polyhydroxyalkanoates (PHAs), starch-based polymers, chitosan and carragenan polysaccharides and protein-based resins for packaging gluten (WG)-based materials. The final chapter presents the safety and regulatory aspects of plastics as food packaging materials. With its distinguished editor and international team of expert contributors Multifunctional and nanoreinforced polymers for food packaging proves a valuable resource for researchers in packaging in the food industry and polymer scientists interested in multifunctional and nanoreinforced materials. Provides a comprehensive review of novel polymers and polymer nanocomposites for use in food packaging Discusses nanofillers for plastics in food packaging including the use of passive and active nanoclays and hidrotalcites and electrospun nanofibers Investigates high barrier plastics for food packaging assessing recent advances in various plastic packaging technologies such as modified atmosphere packaging (MAP)

Green Biopolymers and their Nanocomposites

Green Biopolymers and their Nanocomposites
  • Author : Dhorali Gnanasekaran
  • Publisher :Unknown
  • Release Date :2019-07-06
  • Total pages :437
  • ISBN : 9789811380631
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Summary : This book comprises a collection of chapters on green biopolymer nanocomposites. The book discusses the preparation, properties, and applications of different types of biodegradable polymers. An overview of recent advances in the fabrication of biopolymers nanocomposites from a variety of sources, including organic and inorganic nanomaterials, is presented. The book highlights the importance and impact of eco-friendly green nanocomposites, both environmentally and economically. The contents of this book will prove useful for students, researchers, and professionals working in the field of nanocomposites and green technology.

Polylactic Acid

Polylactic Acid
  • Author : Lee Tin Sin,Abdul Razak Rahmat,Wan A. W. A. Rahman
  • Publisher :Unknown
  • Release Date :2012
  • Total pages :341
  • ISBN : 9781437744590
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Summary : Annotation An essential reference for engineers, scientists and product designers that already work with polymers and plastics who wish to convert to a sustainable plastic. It covers the properties, synthesis and polymerisation of PLA and processing techniques involved in fabricating parts from this polymer.

Poly(lactic acid)

Poly(lactic acid)
  • Author : Rafael A. Auras,Loong-Tak Lim,Susan E. M. Selke,Hideto Tsuji
  • Publisher :Unknown
  • Release Date :2011-03-08
  • Total pages :528
  • ISBN : 1118088131
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Summary : This book describes the synthesis, properties, and processing methods of poly(lactic acid) (PLA), an important family of degradable plastics. As the need for environmentally-friendly packaging materials increases, consumers and companies are in search for new materials that are largely produced from renewable resources, and are recyclable. To that end, an overall theme of the book is the biodegradability, recycling, and sustainability benefits of PLA. The chapters, from a base of international expert contributors, describe specific processing methods, spectroscopy techniques for PLA analysis, and and applications in medical items, packaging, and environmental use.

Development of Polylactic Acid (PLA)-based Nanocomposite Films for Smart Food Packaging Applications

Development of Polylactic Acid (PLA)-based Nanocomposite Films for Smart Food Packaging Applications
  • Author : Zeyad Albahr
  • Publisher :Unknown
  • Release Date :2018
  • Total pages :114
  • ISBN : OCLC:1089398836
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Summary :

Biopolymer Nanocomposites

Biopolymer Nanocomposites
  • Author : Alain Dufresne,Sabu Thomas,Laly A. Pothan
  • Publisher :Unknown
  • Release Date :2013-07-18
  • Total pages :696
  • ISBN : 9781118609903
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Summary : Sets forth the techniques needed to create a vast array of useful biopolymer nanocomposites Interest in biopolymer nanocomposites is soaring. Not only are they green and sustainable materials, they can also be used to develop a broad range of useful products with special properties, from therapeutics to coatings to packaging materials. With contributions from an international team of leading nanoscientists and materials researchers, this book draws together and reviews the most recent developments and techniques in biopolymer nano-composites. It describes the preparation, processing, properties, and applications of bio- polymer nanocomposites developed from chitin, starch, and cellulose, three renewable resources. Biopolymer Nanocomposites features a logical organization and approach that make it easy for readers to take full advantage of the latest science and technology in designing these materials and developing new products and applications. It begins with a chapter reviewing our current understanding of bionanocomposites. Next, the book covers such topics as: Morphological and thermal investigations of chitin-based nanocomposites Applications of starch nanoparticle and starch-based bionanocomposites Spectroscopic characterization of renewable nanoparticles and their composites Nanocellulosic products and their applications Protein-based nanocomposites for food packaging Throughout the book, detailed case studies of industrial applications underscore the unique challenges and opportunities in developing and working with biopolymer nanocomposites. There are also plenty of figures to help readers fully grasp key concepts and techniques. Exploring the full range of applications, Biopolymer Nanocomposites is recommended for researchers in a broad range of industries and disciplines, including biomedical engineering, materials science, physical chemistry, chemical engineering, and polymer science. All readers will learn how to create green, sustainable products and applications using these tremendously versatile materials.

Polylactic Acid

Polylactic Acid
  • Author : Vincenzo Piemonte
  • Publisher :Unknown
  • Release Date :2014-01-19
  • Total pages :354
  • ISBN : 1629481483
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Summary : This book describes the synthesis, properties and applications of PLA through fourteen original chapters that will guide the reader through a fascinating journey into the world of PLA, providing interesting insights for those who intend to use this polymer for innovative applications, or simply those who want to learn more about this very important biodegradable and bio-based plastic. PLA biodegradability introduces this polymer in a world of eco-friendly and human-friendly applications in several technological fields. In short, this book will appeal to all the readers who not only want to have a reference book of consolidated notions on PLA, but also, and especially, to those who want to discover new potentials and new application fields of this unique biodegradable polymer.

Synthesis and Applications of Biopolymer Composites

Synthesis and Applications of Biopolymer Composites
  • Author : Ana María Díez-Pascual,Patrizia Cinelli
  • Publisher :Unknown
  • Release Date :2019-07-23
  • Total pages :312
  • ISBN : 9783039211326
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Summary : This book, as a collection of 17 research articles, provides a selection of the most recent advances in the synthesis, characterization, and applications of environmentally friendly and biodegradable biopolymer composites and nanocomposites. Recently, the demand has been growing for a clean and pollution-free environment and an evident target regarding the minimization of fossil fuel usage. Therefore, much attention has been focused on research to replace petroleum-based commodity plastics by biodegradable materials arising from biological and renewable resources. Biopolymers—polymers produced from natural sources either chemically from a biological material or biosynthesized by living organisms—are suitable alternatives for addressing these issues due to their outstanding properties, including good barrier performance, biodegradation ability, and low weight. However, they generally possess poor mechanical properties, a short fatigue life, low chemical resistance, poor long-term durability, and limited processing capability. In order to overcome these deficiencies, biopolymers can be reinforced with fillers or nanofillers (with at least one of their dimensions in the nanometer range). Bionanocomposites are advantageous for a wide range of applications, such as in medicine, pharmaceutics, cosmetics, food packaging, agriculture, forestry, electronics, transport, construction, and many more.

Handbook of Polymer Nanocomposites. Processing, Performance and Application

Handbook of Polymer Nanocomposites. Processing, Performance and Application
  • Author : Kamal K. Kar,Jitendra K. Pandey,Sravendra Rana
  • Publisher :Unknown
  • Release Date :2014-12-01
  • Total pages :601
  • ISBN : 9783642452291
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Summary : Volume B forms one volume of a Handbook about Polymer Nanocomposites. Volume B deals with Carbon nanotube based polymer composites. The preparation, architecture, characterisation, properties and application of polymer nanocomposites are discussed within some 25 chapters. Each chapter has been authored by experts in the respective field.

Starch-Based Polymeric Materials and Nanocomposites

Starch-Based Polymeric Materials and Nanocomposites
  • Author : Jasim Ahmed,Brijesh K. Tiwari,Syed H. Imam,M.A. Rao
  • Publisher :Unknown
  • Release Date :2012-04-04
  • Total pages :416
  • ISBN : 9781439851166
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Summary : In recent years, much attention has been focused on biodegradable polymers from renewable resources. Due to its availability and low cost, starch is a promising candidate among biopolymers for use in biodegradable packaging materials and for other purposes. Starch-Based Polymeric Materials and Nanocomposites: Chemistry, Processing, and Applications presents the latest developments in starch chemistry, rheology, starch derivatives, starch-based nanocomposites, and their applications. Topics discussed include: The chemistry, microstructure, processing, and enzymatic degradation of starch The importance and role of starch as a gelling agent Plasticization and the role of plasticizers Various rheological techniques applied to starch-related products and the characteristics of starch dispersions Polymeric aspects of reactive extrusion (REX) and its use on starch and other biopolymers Cyclodextrins (CDs) and their industrial applications, and CD-based supramole and polymers The potential of starch in food packaging, edible packaging, feedstock for bioproducts, and industrial and consumer products The theoretical basis and derivation of the mathematical model for multicomponent systems and its solution algorithm The book also explores recent progress in biodegradable starch-based hybrids and nanomaterials and the incorporation of nanoparticles in starches to enhance their mechanical and thermal properties. The book concludes by discussing the use of biopolymeric nanoparticles (BNPs) in drug delivery and life cycle assessment (LCA) of starch-based polymeric materials for packaging and allied applications. With contributions from leading experts in academia and industry, this volume demonstrates the versatility of starch and its potential in a variety of applications.

Biodegradable Poly (Lactic Acid)

Biodegradable Poly (Lactic Acid)
  • Author : Jie Ren
  • Publisher :Unknown
  • Release Date :2011-04-05
  • Total pages :302
  • ISBN : 9783642175961
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Summary : "Biodegradable Poly (Lactic Acid): Synthesis, Modification, Processing and Applications" describes the preparation, modification, processing, and the research and applications of biodegradable poly (lactic acid), which belong to the biomedical and environment-friendly materials. Highly illustrated, the book introduces systematically the synthesis, physical and chemical modifications, and the latest developments of research and applications of poly (lactic acid) in biomedical materials. The book is intended for researchers and graduate students in the fields of materials science and engineering, polymer science and engineering, biomedicine, chemistry, environmental sciences, textile science and engineering, package materials, and so on. Dr. Jie Ren is a professor at the Institute of Nano and Bio-Polymeric Materials, School of Material Science and Engineering, Tongji University, Shanghai, China.

Polylactide Foams

Polylactide Foams
  • Author : Mohammadreza Nofar,Chul B. Park
  • Publisher :Unknown
  • Release Date :2017-09-18
  • Total pages :272
  • ISBN : 9780128139929
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Summary : Polylactide Foams: Fundamentals, Manufacturing, and Applications provides an introduction to the fundamental science behind plastic foams, polylactic acid) and polylactide foaming, giving designers tactics to replace traditional resins with sustainable and biodegradable materials. The book then delves deeper into the technology behind PLA foaming, such as PLA/gas mixture characteristics, solubility, interfacial tension behaviors and crystallization kinetics of various types of PLA and their compounds. The foaming behaviors and mechanisms of various types of PLA and PLA compounds are extensively analyzed and discussed through different manufacturing technologies, namely extrusion foaming, foam injection molding and bead foaming. Interest in Poly(lactic acid) and PLA foams is extremely high – particularly as a potential replacement for styrenic resins – and the price of PLA resin is lower than ever before. This biopolymer has significant potential to improve the sustainability of the plastics industry. Polylactide Foams have a range of potential applications, such as in construction, packaging, insulation, biomedical scaffolds, and others. However, processing and performance of PLA are not at the same level as other non-biodegradable resins. Introduces the concepts behind foaming, poly(lactic acid) and PLA foaming Supports further research and development in PLA foams by covering the state-of-the-art in different manufacturing and processing methods Provides practical guidance for materials scientists and engineers in industry looking to replace traditional polymer resins with a sustainable, biodegradable alternative