Morphology, Structure, Properties and Applications of XLPE

Aljoumaa, Khaled; Allaf, A.W.

doi:10.1007/978-981-16-0514-7_6

Cited by 5 publications

(5 citation statements)

References 106 publications

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“…The sandwiching of polycarbonate with XLPE foam make the composite to withstand high impact because polycarbonate being a thermoplastic makes it strong and durable thereby able to absorb the energy and disperse it evenly 40 while XLPE foam has a close cell structure which provides cushioning and shock absorption. 41 Due to damage brought on by high-strain-rate and impact loadings, concrete blocks are susceptible to failure when exposed to high impact loads. 42 Since the concrete block has less impact energy when compared to the composite, the block failed to withstand a weight of 7.25 kg when dropped from a height of 1m whereas the material had only a small dent as shown in Figures 5(a) and (b).…”

Section: Resultsmentioning

confidence: 99%

Novel recycling of plastic waste into high impact resistant ultralightweight thermally insulated hybrid composite

Ibrahim,

Bhowmik

2023

Journal of Thermoplastic Composite Materials

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This research discusses the development of a high performance composite out of waste plastic that is ultralightweight, thermally insulated, and high impact resistant. Polycarbonate sheet and Cross-linked Polyethylene (XLPE) foam were combined to create the composite, and silicon adhesive was used to fabricate the composite. Polycarbonate sheets are high impact resistant material, high thermal insulation is provided by XLPE foam, and silicon adhesive is used because of its low thermal conductivity. The composite was fabricated using a stacking technique. The composite prototype was then evaluated by experimenting it to dry ice at a temperature of −78.6°C. Drop tests, compression tests, density measurements was carried out, and thermal analysis was carried out using thermogravimetric analysis. The sample can endure low temperatures while maintaining room temperature on the other side, according to a 24 h dry ice test, whilst a drop test demonstrated that it can withstand significant impact loads. A numerical simulation using Abaqus/Explicit was also used to validate the variations in temperature between the outside surface at −20°C and the inside surface maintained at 30°C of the composites when exposed to cold temperature. The result reveals that the hybrid composite are highly promising in terms of thermal insulation.

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Section: Resultsmentioning

confidence: 99%

Novel recycling of plastic waste into high impact resistant ultralightweight thermally insulated hybrid composite

Ibrahim,

Bhowmik

2023

Journal of Thermoplastic Composite Materials

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“…5 The differences in properties of LDPE and HDPE are compared in Table 1. 5,7 Cross-Linked Polyethylene (XLPE). Cross-linking occurs as neighboring chains form covalent bonds, through either direct carbon−carbon links or indirect connections via a bridging group.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, HDPE shrinks more than LDPE . The differences in properties of LDPE and HDPE are compared in Table . , …”

Section: Introductionmentioning

confidence: 99%

Review on Recycling of Cross-Linked Polyethylene

Selvin,

Shah,

Maria

et al. 2024

Ind. Eng. Chem. Res.

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Cross-linked polyethylene is one of the most widely used thermosetting plastics. Due to its low cost, lightweight, and exceptional insulation properties against electricity and heat, it is frequently used as an insulation material for wires and cables. This polymer attracted interest in several different applications, including building services, piping systems, hydronic radiant heating, cooling systems, etc. However, because XLPE is a thermosetting plastic with limited fluidity and poor moldability, recycling this cross-linked form of polyethylene is extremely important. Due to irreversible covalent cross-linking, recycling XLPE is a very challenging task, and it can contribute to serious environmental issues, including soil and air pollution because most of this industrial waste is buried in landfills or removed by incineration. Therefore, recycling this kind of material with a crosslinked network structure is highly problematic. Therefore, we need an energyefficient, cost-effective, and eco-friendly recycling process to safeguard our ecosystem. In this article, we are systematically reviewing the recent advances in the recycling of XLPE. The major challenges are also discussed.

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“…To improve the thermomechanical properties, ones have explored crosslinking PEs, that is, the inter‐chain linkages of chemical bonds were generated 9,10 . Crosslinked PE (i.e., XLPE) can be further used as resilience forms, pipelines, and insulation coverings of electrical wires 11–13 . Owing to the generation of crosslinked structures, XLPEs additionally display thermally‐induced shape memory properties, with which XLPEs can be used as heat‐shrinkable tubes and films 14,15 .…”

Section: Introductionmentioning

confidence: 99%

“…9,10 Crosslinked PE (i.e., XLPE) can be further used as resilience forms, pipelines, and insulation coverings of electrical wires. [11][12][13] Owing to the generation of crosslinked structures, XLPEs additionally display thermally-induced shape memory properties, with which XLPEs can be used as heatshrinkable tubes and films. 14,15 In principle, crosslinking can be achieved via chemical and physical approaches.…”

mentioning

confidence: 99%

Crosslinking of polyethylene with polysilsesquioxane via carbamate linkages: Synthesis, shape recovery, and reprocessing properties

Hu,

Gao,

Hang

et al. 2024

Journal of Polymer Science

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In this contribution, we reported the crosslinking of polyethylene (PE) with dynamic silyl ether bonds. First, polycyclooctene copolymers bearing hydroxyl groups were synthesized via the ring‐opening metathesis copolymerization of cyclooctene with 5‐norbornene‐2‐methanol. The hydroxy‐functionalized polycyclooctene copolymers were further hydrogenated into the corresponding hydroxy‐functionalized PE copolymers. The PE copolymers were allowed to react with 3‐isocyanatopropyltriethoxysilane to obtain the PE copolymers bearing triethoxysilane groups. By taking advantage of hydrolysis and condensation of triethoxysilane groups grafted onto PE chains, the PE copolymers were well crosslinked; polysilsesquioxane (PSSQ) segments behaved as the crosslinking linkages in the networks. Notably, the PE networks were reprocessable (or recyclable) while zinc trifluoromethanesulfonate [Zn(OTf)2] was incorporated. The reprocessing properties of the PE networks were quite dependent on the crosslinking densities. The reprocessing behavior of the networks is attributable to the introduction of two dynamic chemistries: (i) the metathesis of silyl ether bonds which was catalyzed with Zn(OTf)2 and (ii) transcarbamoylation of carbamates which was catalyzed with dibutyltin dilaurate. Owing to the crosslinking, the PE networks displayed excellent shape memory properties. For the shape memory networks, notably, the original shapes can be reprogrammed with the aid of the exchange of the dynamic covalent bonds introduced into the systems.

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Morphology, Structure, Properties and Applications of XLPE

Cited by 5 publications

References 106 publications

Novel recycling of plastic waste into high impact resistant ultralightweight thermally insulated hybrid composite

Novel recycling of plastic waste into high impact resistant ultralightweight thermally insulated hybrid composite

Review on Recycling of Cross-Linked Polyethylene

Crosslinking of polyethylene with polysilsesquioxane via carbamate linkages: Synthesis, shape recovery, and reprocessing properties

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