Distributed Recycling via Additive Manufacturing (DRAM) offers a viable pathway to a circular economy.
Category: Resource Management · Effect: Strong effect · Year: 2020
Leveraging additive manufacturing (AM) for distributed recycling of plastics can create a closed-loop system, reducing waste and promoting resource efficiency.
Design Takeaway
Prioritize the design of products with end-of-life recycling in mind, and explore opportunities to integrate recycled materials into AM workflows, focusing on improving material recovery and preparation processes.
Why It Matters
This approach allows for localized recycling and production, minimizing transportation costs and environmental impact. It presents an opportunity for designers and engineers to rethink product lifecycles and material sourcing within a more sustainable framework.
Key Finding
While 3D printing with recycled plastics is technically feasible and progressing well, more research is needed on efficiently collecting and preparing these materials at a local level to create a truly circular system.
Key Findings
- Significant progress has been made in the compounding, feedstock, printing, and quality control stages of using recycled plastics in AM.
- The recovery and preparation stages of recycled materials require further development to fully realize the potential of Distributed Recycling via Additive Manufacturing (DRAM).
- An open-source approach to developing DRAM stages can facilitate scaling and integration into circular economy frameworks at various levels (micro, meso, macro).
Research Evidence
Aim: To investigate the current state and future potential of using recycled thermoplastics in additive manufacturing processes to establish a circular economy model.
Method: Systematic Literature Review
Procedure: A comprehensive review of 92 academic papers published between 2009 and 2019 was conducted across multiple databases (Scopus, Web of Science, Springer) to analyze advancements in thermoplastic recycling for additive manufacturing.
Sample Size: 92 papers
Context: Additive Manufacturing (3D Printing) and Circular Economy
Design Principle
Design for Disassembly and Recyclability: Products should be designed to be easily disassembled, and materials should be chosen for their recyclability and suitability for additive manufacturing processes.
How to Apply
When designing a new product, research the availability of recycled plastic feedstocks for AM in your region and consider how the product's components could be designed for easy separation and reprocessing.
Limitations
The review covers literature up to 2019, and newer advancements may exist. The focus is primarily on thermoplastic materials.
Student Guide (IB Design Technology)
Simple Explanation: Using 3D printing to recycle plastic waste can help create a circular economy where old plastic becomes new products, but we need better ways to collect and prepare the plastic first.
Why This Matters: This research highlights a practical way to address plastic waste by turning it into valuable resources for manufacturing, aligning with sustainability goals in design projects.
Critical Thinking: To what extent can DRAM truly replace the need for virgin plastic production, considering the technical limitations and economic viability of current recycling processes?
IA-Ready Paragraph: The concept of Distributed Recycling via Additive Manufacturing (DRAM) presents a promising avenue for integrating recycled plastics into a circular economy. Research indicates that while the printing stages are advancing, further innovation is needed in material recovery and preparation to create a robust closed-loop system. Designers and engineers can contribute by creating products designed for disassembly and by exploring localized recycling solutions.
Project Tips
- Investigate local plastic waste streams and their suitability for mechanical recycling into 3D printing filament.
- Explore open-source hardware and software solutions for small-scale plastic shredding and filament extrusion.
- Consider the design of products that can be easily disassembled for material recovery.
How to Use in IA
- Reference this study when discussing the environmental benefits of using recycled materials in your design project.
- Use the DRAM concept as a framework for analyzing the lifecycle of your designed product.
Examiner Tips
- Demonstrate an understanding of the challenges in material recovery and preparation for recycled plastics.
- Discuss the potential for localized, distributed manufacturing using recycled materials.
Independent Variable: ["Stage of the DRAM process (recovery, preparation, compounding, feedstock, printing, quality)"]
Dependent Variable: ["Technical feasibility of using recycled plastics in AM","Environmental impact of DRAM","Economic viability of DRAM"]
Controlled Variables: ["Type of thermoplastic material","Specific AM technology used","Geographical scale of the DRAM system"]
Strengths
- Comprehensive literature review covering a decade of research.
- Proposal of a structured DRAM chain for analysis.
- Identification of research gaps and future opportunities.
Critical Questions
- What are the primary barriers to scaling up the recovery and preparation stages of DRAM?
- How can open-source collaboration effectively address the challenges in DRAM implementation?
Extended Essay Application
- Investigate the feasibility of a local DRAM hub for a specific community or institution.
- Design a product specifically for disassembly and recycling using AM, documenting the material flow and potential environmental benefits.
Source
Plastic recycling in additive manufacturing: A systematic literature review and opportunities for the circular economy · Journal of Cleaner Production · 2020 · 10.1016/j.jclepro.2020.121602