Title: Printability of Spent Coffee Ground Biochar Reinforced Bio Based Epoxy for Additive Manufacturing

Authors: Ahmed Alhelal, Zaheeruddin Mohammed, Shaik Jeelani and Vijaya K. Rangari

DOI: 10.33599/nasampe/s.22.0819

Abstract: Due to rapid depletion of petroleum-based resources, sustainable materials sourced from bio-based precursors are in high demand. As a result, manufacturing and processing technologies are also being updated accordingly. In this current work, we have investigated printability of bio based epoxy resins reinforced with spent coffee grounds (SCG) derived biochar for additive manufacturing using direct write method by rheological studies. Bio based epoxy resin reinforced with pyrolyzed SCG with different loadings of 0.5, 1, 2, and 3 Wt. % were investigated. It was observed that with addition of biochar the apparent viscosity of the material increased indicating that the micrometer biochar material were effective in altering the viscosity of the material. It was found that 1 wt. % loading was the best composition for printing at a shear rate of 50 s-1. Curing behavior of bio based epoxy resin was investigated using Differential Scanning Calorimetry (DSC). It was found that the bio based epoxy cured around 110° C. This helps in maintaining the required bed temperature while printing the material.

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Conference: SAMPE 2022

Publication Date: 2022/05/23

SKU: TP22-0000000819

Pages: 10

Price: $20.00