Material Extrusion AM with Water-soluble Feedstocks: Background, Benefits, and Barriers
محورهای موضوعی : Journal of Environmental Friendly MaterialsA Nouroozi Dehsari 1 , A Askari 2
1 - Department of Mechanical Engineering, Ka.C., Islamic Azad University, Karaj, Iran
2 - Department of Mechanical Engineering, Ka.C., Islamic Azad University, Karaj, Iran
کلید واژه: Material Extrusion Additive Manufacturing (MEAM), Polyethylene.,
چکیده مقاله :
Material extrusion additive manufacturing (MEAM) has emerged as a versatile and cost-effective technology for fabricating complex three-dimensional components. This review focuses on the integration of water-soluble feedstocks in MEAM, highlighting their potential for environmentally sustainable and efficient manufacturing. Water-soluble polymers such as polyethylene glycol (PEG) and polyvinyl alcohol (PVA) serve as critical binder components, enabling the use of water as a debinding agent, which minimizes reliance on hazardous solvents and reduces environmental impact. The composition and optimization of feedstocks—including the balance of polymers, powders, and additives—play a pivotal role in determining rheological behavior, extrusion performance, and the mechanical properties of green and sintered parts. Challenges such as maintaining mechanical strength, managing environmental sensitivity, and ensuring consistency in processing are addressed. Key insights into the relationship between particle morphology, binder molecular weight, and process parameters such as extrusion temperature and nozzle design are meadiscussed. This paper provides a comprehensive overview of current advancements and limitations in using water-soluble feedstocks for MEAM, identifying future research opportunities aimed at enhancing process reliability and sustainability. The findings aim to support the wider adoption of MEAM in diverse applications, , leveraging innovative feedstock designs for more sustainable manufacturing practices
Material extrusion additive manufacturing (MEAM) has emerged as a versatile and cost-effective technology for fabricating complex three-dimensional components. This review focuses on the integration of water-soluble feedstocks in MEAM, highlighting their potential for environmentally sustainable and efficient manufacturing. Water-soluble polymers such as polyethylene glycol (PEG) and polyvinyl alcohol (PVA) serve as critical binder components, enabling the use of water as a debinding agent, which minimizes reliance on hazardous solvents and reduces environmental impact. The composition and optimization of feedstocks—including the balance of polymers, powders, and additives—play a pivotal role in determining rheological behavior, extrusion performance, and the mechanical properties of green and sintered parts. Challenges such as maintaining mechanical strength, managing environmental sensitivity, and ensuring consistency in processing are addressed. Key insights into the relationship between particle morphology, binder molecular weight, and process parameters such as extrusion temperature and nozzle design are meadiscussed. This paper provides a comprehensive overview of current advancements and limitations in using water-soluble feedstocks for MEAM, identifying future research opportunities aimed at enhancing process reliability and sustainability. The findings aim to support the wider adoption of MEAM in diverse applications, , leveraging innovative feedstock designs for more sustainable manufacturing practices
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