Textile and Apparel Science

New Filaments from Used Face Masks as PLA Filament Alternative For 3D Printing: Part I

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Abstract

The goal of our research is to create an innovative way to recycle and repurpose disposable face masks. We have conducted an exploratory study that examines the feasibility of melting down face masks made from polymers to create a filament that could be 3D printed to recreate a variety of products. We hope to reduce environmental waste and be able to repurpose the masks into products to be utilized in the health industry, bringing the life cycle of masks full circle. The materials obtained for this laboratory testing were a total of 75 commercial, single-use face masks made by FLTR, Inc. The results showed each sample melted within a range of 156 °C to 184 °C, including a melted temperature range (166 °C to 172 °C) of the combined layers sample. Since this temperature remains low and within the range for 3D printing, it is feasible to assume that an entire mask (excluding the ear elastic straps and a nose bridge strip) could be melted down to make an effective alternative plastic. This result has implications for making the process more environmentally friendly and less labor-intensive, as the masks do not need to be separated by layer. Our results show that melted-down masks have similar and perhaps superior properties to PLA, including melting at a lower temperature.

Keywords: single-use disposable face masks, plastic waste, COVID-19 pandemic, 3D printing, PLA filaments

How to Cite:

Nam, C., Chung, H. & Ridgway, J. L., (2022) “New Filaments from Used Face Masks as PLA Filament Alternative For 3D Printing: Part I”, International Textile and Apparel Association Annual Conference Proceedings 79(1). doi: https://doi.org/10.31274/itaa.15878