Abstract
The recycling of thermoplastic domestic waste (like kitchenware, sanitary ware, toys, etc.) comprising acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA), etc., is of environmental concern for plastic solid waste management, especially in urban areas. The aluminum (Al) powder endures dynamic exothermic reaction when oxidized and has numerous applications in the pyrotechnic process, and subsequently, its waste is available in abundance from the firecracker industry. Some studies have reported secondary (2°) recycling of different thermoplastics, but hitherto less has been reported on reinforcement of Al powder (≈45–50 µm) collected from the firecracker industry in ABS and PLA matrix. This study highlights the 2° recycling of ABS-PLA-Al matrix for possible 3D printing of fire sensors (both for domestic and industrial applications). The results suggest that initially 80%ABS-20%PLA (by weight %) matrix was found suitable for 3D printing based on a rheological property (of collected domestic waste), which was further used to reinforce 5%Al powder for enhancing the exothermic reaction (for its possible use as fire sensor). The outcomes of the study are supported by thermal, mechanical, Fourier transformed infrared (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM)—energy-dispersion spectroscopy (EDS)-based morphological analysis.
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Acknowledgements
The authors acknowledge the laboratory facilities provided by the National Institute of Technical Teachers Training and Research Chandigarh, and Chandigarh University, India.
Funding
The authors are thankful to the Department of Science and Technology for funding under FIST Level-0, Project No. SR/FST/College-/2020/997.
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Significance Statement: This study highlights the 2° recycling of ABS-PLA-Al matrix for possible 3D printing of fire sensors.
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Kumar, V., Singh, R., Ranjan, N. et al. On Secondary Recycling of the Domestic Thermoplastic Waste with Reinforcement of Aluminum Powder. Natl. Acad. Sci. Lett. 47, 167–171 (2024). https://doi.org/10.1007/s40009-023-01337-5
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DOI: https://doi.org/10.1007/s40009-023-01337-5