This book provides a comprehensive and up-to-date discussion of breakthroughs on additive manufacturing for plastic material recycling to boost a circular economy. It offers new ideas of combining/hybridizing processing methods that work as a source of information for manufacturers in making new and strategic product development plans.
Additive Manufacturing for Plastic Recycling: Efforts in Boosting a Circular Economy provides a critical, comprehensive, methodological, and strong state-of-the-art work on the processing of thermoplastic and thermosetting along with new directions and applications. It describes the common and hybrid approaches of recycling processes and includes theoretical and practical ideas of combining/hybridizing processing methods with the use of fused deposition modelling, which is one of the low-cost additive manufacturing techniques. The book also discusses mechanical twin-screw extrusion followed by case studies for developing hybrid composite structures for biomedical and structural applications. Recent innovations in melt processing for recycling and the fundaments, process parameters investigations, and applications for new product development are also presented.
This book is a first-hand reference source of information for academic scholars and commercial manufacturers for making strategic development plans for new product development.
Author(s): Rupinder Singh, Ranvijay Kumar
Series: Sustainable Manufacturing Technologies
Publisher: CRC Press
Year: 2022
Language: English
Pages: 184
City: Boca Raton
Cover
Half Title
Series Page
Title Page
Copyright Page
Contents
Preface
Editors
Contributors
1. Introduction to Circular Economy and Recycling Plastics
1.1 Introduction
1.2 Plastic and its Waste
1.3 Pathways from Waste to Materials: Ways of Recycling
1.3.1 Mechanical Recycling
1.3.1.1 Industrial Approaches for Mechanical Recycling of Plastic
1.3.2 Chemical Recycling
1.3.2.1 Industrial Approaches for Chemical Recycling of Plastic
1.3.3 Organic Recycling
1.3.4 Energy Recovery/Incineration
1.4 Implementation of Circular Economy for Plastic Waste: Challenges and Opportunities
1.5 Practices Towards the Circular Economy Approach
1.6 Future Prospective
1.7 Summary
References
2. Additive Manufacturing for Circular Economy of Recycled Plastic
2.1 Introduction to Plastic Wastage
2.2 Recycling of Plastics
2.3 Processing Steps for Plastics Recycling
2.4 Types of Plastics
2.5 Circular Economy
2.6 Future Challenges and Scope of the Circular Economy
2.7 Case Study
2.7.1 Melt Flow Testing of ABS with Single, Double, and Triple Particle Size of Copper Particles
2.7.2 Manufacturing of Feedstock Filament for 3D Printing with Twin-Screw Extruder Machine
2.8 Thermal and Electrical Properties Analyzed
2.9 Thermal and Electrical Properties Analyzed
References
3. Hybrid Mechanical and Chemical Recycling of Plastics
3.1 Introduction
3.1.1 4D Printing
3.2 Experimentation
3.2.1 Materials and Methods
3.2.2 Preparation of Feedstock Filament
3.3 Results and Discussions
3.3.1 Mechanical Characterization
3.3.2 Process Capability Analysis
3.4 Conclusions
Acknowledgement
References
4. Primary and Secondary Melt Processing for Plastics
4.1 Introduction
4.2 Experimentation
4.2.1 Material Selection
4.2.2 Material Processing
4.2.3 Sample Preparation
4.2.4 Uniaxial Tensile Testing
4.2.5 Finite Element Analysis
4.3 Results and Discussion
4.3.1 Uniaxial Tensile Testing
4.3.2 Finite Element Analysis
4.3.3 Machine Learning
Conclusions
References
5. Fused Deposition Modeling as a Secondary Recycling Process for the Preparation of Sustainable Structures
5.1 Introduction
5.1.1 Recycling Techniques
5.1.2 Recycled Polymers with Reinforced Materials
5.2 Case study: Sustainable Structure Fabricated Through FDM from PW
5.3 Conclusions
Acknowledgements
References
6. Tertiary Recycling of Plastic Solid Waste for Additive Manufacturing
6.1 Introduction
6.2 Research Gap and Problem Formulation
6.3 Experimentation
6.4 Results and Discussion
6.4.1 Rheological Analysis
6.4.2 Thermal Analysis
6.4.3 Mechanical Analysis
6.4.4 Process Capability Analysis
6.5 Summary
Acknowledgement
References
7. Economic and Environmental Justification
7.1 Introduction
7.2 Background for Circular Economy in Plastic Recycling
7.3 The vision of Circular Economy for Plastic Recycling
7.3.1 Prioritize Regenerative Strategies
7.3.2 Increase the Life Span of the Product
7.3.3 Convert Waste Into a Resource
7.3.4 Rebuild the Business Model
7.3.5 Incorporate Digital Processes
7.3.6 Design for the Future
7.3.7 Boost the Recycling Strategies
7.3.8 The Economic Impact of Plastic Recycling
7.4 Environmental Impact of Plastic Recycling
7.5 The Future Aspect of Boosting the Circular Economy for Plastic Recycling
7.6 Summary
Acknowledgements
References
8. Twin-Screw Extrusion for Processing Thermoplastics in Biomedical Scaffolding Applications
8.1 Introduction
8.2 Research Background
8.2.1 Bibliographic Analysis
8.2.2 Previous Research Work Analysis
8.3 Biomedical Applications of Different Thermoplastics
8.4 Case Study
8.4.1 Material Processing of PLA-HAp-CS Using TSE for Fabrication of Biocompatible Scaffolds
8.6 Conclusions
Acknowledgement
References
9. Case Study for the Development of a Hybrid Composite Structure of Thermosetting and Thermoplastics
9.1 Introduction
9.2 Literature Survey
9.3 Research Gap
9.4 Methodology and Experimentation
9.5 Results and Discussion
9.5.1 Design of the Patch Antenna
9.5.2 Simulation of Antennas Using HFSS
9.5.2.1 S11 Parameters
9.5.2.2 Bandwidth
9.5.2.3 The Voltage Standing Wave Ratio (VSWR)
9.5.2.4 Gain
9.5.3 Fabricating of a Patch Antenna
9.5.4 VNA Testing
9.6 Conclusions
9.7 Future scope
Acknowledgement
References
10. Hybrid Feedstock Filament Processing for the Preparation of Composite Structures in Heritage Repair
10.1 Introduction
10.2 Research Gap and Problem Formulation
10.3 Experimentation
10.3.1 Preparation and Characterization of PVDF Composites
10.3.2 Feedstock Filament Preparation
10.4 Results and Discussion
10.5 Summary
Acknowledgement
References
Index
