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Utilization of residual fatty acids in matter organic non-glycerol from a soy biodiesel pant in filaments used for 3D printing
Malayil, S., Surendran, A. N., Kate, K., & Satyavolu, J. (2023). Utilization of residual fatty acids in matter organic non-glycerol from a soy biodiesel pant in filaments used for 3D printing. Journal of Bioresources and Bioproducts. https://doi.org/10.1016/j.jobab.2023.04.001
Matter organic non-glycerol (MONG) is a considerable waste output (20%−25% of crude glycerol) typically landfilled by soy biodiesel plants. In this work, soy MONG was characterized for potential use as a copolymer to produce filaments for 3D printing with an intent to add value and redirect it from landfills. As a copolymer, MONG was evaluated to reduce the synthetic polymer content of the natural fiber composites (NFC). Even though the general thermal behavior of the MONG was compared to that of a thermoplastic polymer in composite applications, it is dependent on the composition of the MONG, which is a variable depending on plant discharge waste. In order to improve the thermal stability of MONG, we evaluated two pretreatments (acid and acid+peroxide). The acid+peroxide pretreatment resulted in a stabilized paste with decreased soap content, increased crystallinity, low molecular weight small chain fatty acids, and a stable blend as a copolymer with a thermoplastic polymer. This treatment increased formic acid (17.53%) in MONG, along with hydrogen peroxide, led to epoxidation exhibited by the increased concentration of oxirane (5.6%) evaluating treated MONG as a copolymer in polymer processing and 3D printing.