Recycled HDPE reinforced Al₂O₃ and SiC three dimensional printed patterns for sandwich composite material

Abstract

In the present work, a sacrificial patterns (SP) for investment casting (IC) were prepared with three dimensional (3D) printing (by using fused deposition modelling (FDM) setup) from recycled high density polyethylene (HDPE) recovered from domestic waste reinforced with Al 2 O 3 and SiC particles in different proportions. These SP were further used for preparation of sandwich composite material (SCM) as a novel process. Finally casted functional prototypes as SCM were investigated for surface hardness, porosity and grain size measurement supported by photomicrographs and scanning electron microscope (SEM), energy dispersive x-ray analysis (EDAX). The results of the study suggest that SCM prepared by proposed route have acceptable hardness (34.9 HV) and porosity (6.16%) for Polypropylene PP RECEIVED

Effect of extrusion parameters on primary recycled ABS: mechanical, rheological, morphological and thermal properties

“…The improvement in mechanical properties of 1°recycled thermoplastic material after TSE is certainly useful for enhancing the reusability/ recyclability of the polymers. These results are in line with the observations made by other investigators [21][22][23][24][25][26][27].…”

Progress and challenges towards additive manufacturing of SiC ceramic

“…However, it should be pointed out that the reported FDM [63] was not a real ceramic since the amount of ceramic added was small and there was even no sintering process. Masuda et al [64] also successfully mixed water-soluble resole phenolic resin with SiC ceramic particles to prepare polymer-ceramic wires.…”

“…Singh et al [63] mixed Al 2 O 3 and SiC ceramic particles with high-density waste recycled polyethylene, and formed into polymer-ceramic wires (as shown in Fig. 17(a)).…”

Effect of silicon carbide particles on the mechanical, thermal and structural properties of recycled high-density polyethylene

“…The results found that the developed composite FDM filament has potential for possible applications as rapid tooling. Singh et al 21 worked with Al 2 O 3 and SiC-reinforced recycled HDPE. A sacrificial pattern (SP) for investment casting were made by 3D printing (using fused deposition modelling (FDM) machine) from rHDPE blended with Al 2 O 3 and SiC particles in various proportions.…”