Polyethylene: High-density

Enderle, H.-F.

doi:10.1016/b0-08-043152-6/01272-9

Cited by 6 publications

(8 citation statements)

References 7 publications

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“…Regarding the mechanical properties of 3D printed HDPE specimens, there is no complete research or literature available yet due to the low printability of the HDPE material. The overall results of the current study for the virgin HDPE mechanical properties are in good agreement with the literature [5,18,19].…”

Section: Discussionsupporting

confidence: 90%

“…The mechanical properties of bulk, injection molded, and virgin HDPE polymer have been thoroughly studied and discussed in literature [5][6][7][8][9][10]. Regarding the mechanical properties of 3D printed HDPE specimens, there is no complete research or literature available yet due to the low printability of the HDPE material.…”

Section: Discussionmentioning

confidence: 99%

“…Their versatility has made them one of the most popular plastics in use today. LDPE, HDPE, and PP are the major types of thermoplastics used globally in applications such as containers, pipes, toys, bags (LDPE), gas pipes (HDPE) [5], industrial wrappings, housewares and film [6,7], electrical components, and automotive parts (PP) [8]. As one of the most versatile plastic materials around, HDPE plastic is also used in a wide variety of applications in industries to replace heavy parts with more lightweight ones that are able to withstand similar forces while offering rigid strength, corrosion resistance, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

“…As one of the most versatile plastic materials around, HDPE plastic is also used in a wide variety of applications in industries to replace heavy parts with more lightweight ones that are able to withstand similar forces while offering rigid strength, corrosion resistance, and environmental friendliness. HDPE is also considered as a material suitable for sustainable and affordable manufacturing, offering high recyclability and cost efficiency [5].…”

Section: Introductionmentioning

confidence: 99%

“…All these parameters are crucial for the economy of the recycling process and the material's behavior after it is recycled. In literature, only a few studies are available on the mechanical properties of bulk and recycled HDPE [5][6][7][8][9][10][11] and HDPE composites [12][13][14][15][16][17][18], even less on the mechanical properties of HDPE 3D printed specimens [19], and no literature is available on the recycling of FFF HDPE specimens.…”

Section: Introductionmentioning

confidence: 99%

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Sustainable Additive Manufacturing: Mechanical Response of High-Density Polyethylene over Multiple Recycling Processes

2021

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Polymer recycling is nowadays in high-demand due to an increase in polymers demand and production. Recycling of such materials is mostly a thermomechanical process that modifies their overall mechanical behavior. The present research work focuses on the recyclability of high-density polyethylene (HDPE), one of the most recycled materials globally, for use in additive manufacturing (AM). A thorough investigation was carried out to determine the effect of the continuous recycling on mechanical, structural, and thermal responses of HDPE polymer via a process that isolates the thermomechanical treatment from other parameters such as aging, contamination, etc. Fused filament fabrication (FFF) specimens were produced from virgin and recycled materials and were experimentally tested and evaluated in tension, flexion, impact, and micro-hardness. A thorough thermal and morphological analysis was also performed. The overall results of this study show that the mechanical properties of the recycled HDPE polymer were generally improved over the recycling repetitions for a certain number of recycling steps, making the HDPE recycling a viable option for circular use. Repetitions two to five had the optimum overall mechanical behavior, indicating a significant positive impact of the HDPE polymer recycling aside from the environmental one.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sustainable Additive Manufacturing: Mechanical Response of High-Density Polyethylene over Multiple Recycling Processes

2021

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Environmental benign natural fibre reinforced thermoplastic composites: A review

Awais

Nawab

Amjad

et al. 2021

Composites Part C: Open Access

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Linear Copolymers of Ethylene and Polar Vinyl Monomers via Olefin Metathesis−Hydrogenation: Synthesis, Characterization, and Comparison to Branched Analogues

et al. 2007

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Materials structurally equivalent to copolymers of ethylene and <10 mol % of vinyl alcohol, vinyl acetate, methyl acrylate, tert-butyl acrylate, and acrylic acid were synthesized via ruthenium-catalyzed olefin metathesis copolymerization followed by polymer hydrogenation. These polymers differ from previous metathesisderived linear polyethylene analogues in that they do not have precise sequence distributions, and therefore, they serve as superior models for chain-addition functional polyethylenes. The ester group-substituted polymers display rapid decreases in melting temperature and heat of fusion with increasing comonomer contents irrespective of the identity of the functional group, consistent with these groups being equally excluded from the crystal lattice. The alcohol-substituted polymers, however, show higher melting temperatures and a weaker property dependence on comonomer content as compared to the other polymers. Thus, the behavior of alkyl branch-free functionalized polyethylenes is consistent with the large body of work involving the effects of functional substituents on polyethylenes containing alkyl branches.

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Polyethylene: High-density

Cited by 6 publications

References 7 publications

Sustainable Additive Manufacturing: Mechanical Response of High-Density Polyethylene over Multiple Recycling Processes

Sustainable Additive Manufacturing: Mechanical Response of High-Density Polyethylene over Multiple Recycling Processes

Environmental benign natural fibre reinforced thermoplastic composites: A review

Linear Copolymers of Ethylene and Polar Vinyl Monomers via Olefin Metathesis−Hydrogenation: Synthesis, Characterization, and Comparison to Branched Analogues

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