@article {47163,
	title = {Three-dimensional printing with waste high-density polyethylene},
	journal = {ACS Applied Polymer Materials},
	volume = {1},
	year = {2019},
	month = {NOV},
	pages = {3157-3164},
	type = {Article},
	abstract = {<p>Fused filament fabrication (FFF) three-dimensional (3D) printing of semicrystalline polymers such as high density polyethylene (HDPE) is challenging because crystallization-induced shrinkage of the filament, as it cools, results in stresses that warp the printed part and debond it from the print substrate. Here, we demonstrate that waste-derived HDPE can be successfully 3D printed by (i) blending with a small fraction (\&lt;0.5\% by weight) of dimethyl dibenzylidene sorbitol (DMDBS) and (similar to 10\%) linear low density polyethylene (LLDPE) and (ii) printing the object with a thin {\textquoteleft}{\textquoteleft}brim{\textquoteright}{\textquoteright} around it that is adhered to the print substrate using common polyvinyl acetate-based glue. We match our experimental results with FEM simulations that provide insight into the origin of the stresses developed during printing. Because HDPE forms a significant fraction of the plastic waste stream, conversion of waste-derived HDPE to 3D printing filament has important technological implications.</p>
},
	keywords = {3d printing polyethylene printing, polymer blend, Recyclability, warpage},
	issn = {2637-6105},
	doi = {10.1021/acsapm.9b00813},
	author = {Gudadhe, Aniket and Bachhar, Nirmalya and Kumar, Anil and Andrade, Prem and Kumaraswamy, Guruswamy}
}
