Abstract
In this paper, we report the synthesis of novel 3D printed composites using particulates of Nylon and Polyester as functional additives. Nylon- and Polyester-based composites were designed by adding 5 wt% (Resin-5%Polyester or Resin-5%Nylon), 10 wt% (Resin-10%Polyester or Resin-10%Nylon), and 20 wt% (Resin-20%Polyester or Resin-20%Nylon) Polyester or Nylon particulates in the photopolymer resin matrix. The mechanical behavior study showed that the addition of both Polyester and Nylon particulates had a deleterious effect; for example, the baseline samples had a tensile strength of ~ 19 MPa, however, as the volume fraction of Polyester particulates was increased, the tensile strength decreased to ~ 12 MPa in Resin-5%Polyester, thereafter slightly increased to ~ 14 MPa in both Resin-10%Polyester and Resin-20%Polyester, respectively. The particulate additives had a beneficial effect on the tribological behavior. For example, as compared to 3D printed resin, the specific wear rate decreased by one order of magnitude from ~ 4.68 × 10−4 mm3/Nm in pure resin to ~ 3.42 × 10−5 mm3/Nm in Resin-20%Polyester (~ 13 .7 times reduction) and µmean decreased significantly from ~ 0.42 in pure resin to ~ 0.08 in Resin-20%Polyester (~ 5.2 times reduction), respectively.
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Dunnigan, R., Clemens, J., Cavalli, M.N. et al. Beneficial usage of recycled polymer particulates for designing novel 3D printed composites. Prog Addit Manuf 3, 33–38 (2018). https://doi.org/10.1007/s40964-018-0046-2
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DOI: https://doi.org/10.1007/s40964-018-0046-2