PDF Publication Title:
Text from PDF Page: 012
Appl. Sci. 2022, 12, 2867 250 200 150 100 50 Appl. Sci. 2022, 12, x FOR PEEORrRigEinVaIlEW 12 of 20 30 25 20 15 10 polyet hylene Figure 12. Example of a fibre stress-strain curve. 3.3. Comparison among the Properties of the Original Polyethylene, the Recycled One and of the Fibres Figure 13 shows a comparison of the mechanical properties of polyethylene before being recycled, after being recycled, and the fibres made from recycled polyethylene. 13 12 11 10 9 8 7 1000 800 600 400 200 Recycled polyet hylene (a) Fibers of polyet hylene Original polyet hylene Recycled polyet hylene (b) Fibers of polyet hylene 13 of 21 50 Original Recycled Fibers of polyethylene polyethylene polyethylene Original polyethylene polyethylene polyethylene (d) Figure 13. Comparison of the mechanical properties of polyethylene before and after valorisation and of polyethylene fibres. (a) Elastic modulus. (b) Yield strength. (c) Breaking strength. (d) Strain and of polyethylene fibres. (a) Elastic modulus. (b) Yield strength. (c) Breaking strength. (d) Strain at at maximum stress. maximum stress. (c) Figure 13. Comparison of the mechanical properties of polyethylene before and after valorisation First of all, it can be observed from all of the graphs that the fibres are very scattered First of all, it can be observed from all of the graphs that the fibres are very scattered in in relation to the other two products. This phenomenon is because, while the characteri- relation to the other two products. This phenomenon is because, while the characterisation sation of the original polyethylene and the recycled one were carried out with standard- of the original polyethylene and the recycled one were carried out with standardised ised test specimens, the fibres are manufactured manually, which leads to irregularities in test specimens, the fibres are manufactured manually, which leads to irregularities in the geometry. the geometry. Figure 13a shows that the elastic modulus of both the PR and the fibres is increased Figure 13a shows that the elastic modulus of both the PR and the fibres is increased in in comparison to PT. Regarding the yield stress and breaking stress, although the mean comparison to PT. Regarding the yield stress and breaking stress, although the mean values values of both the valorised material and the fibres show a slight increase, the three prod- of both the valorised material and the fibres show a slight increase, the three products ucts shown in Figure 13 b,c indicate that the recycling process does not significantly mod- shown in Figure 13b,c indicate that the recycling process does not significantly modify ify these properties. these properties. The main difference is the strain under maximum load, shown in Figure 13d. In the The main difference is the strain under maximum load, shown in Figure 13d. In cthaesecoafsethoefftihbreefis,barletsh,oaultghotuhgehavtheeraagveevraglueeviaslhuieghisehritghhanerththaatnofththaetpoofltyhethpyolleyneethbyelfeonre beifnogrevbaeloinrgisevda,lothriesesdta,ttihsteicsatladtiissttirciabludtisotnriobfuthioenreosfutlhtseirnedsuiclatsteisndthicaattehsetdhuatctihlietydoufctbiolithy iosfsbiomthilaisr.sHimoiwlaer.vHero,wthevsetr,atihnevsatrlauiensvoaflutheesorefctyhcelerdecpycoleydetphoyllyeentehyalrenmeaurcehmlouwcherlothwaenr theanotherotwheor.tOwno.thOenotnhehoannedh,atnhdis,rthedisurcetdiounctiinonduinctdiluitcyticliatnycbaenebxepleaxipneladinbeydtbhyetihne- cinrecaresaedsesdtisfftnifefnssesshoshwonwbnybthyethmeamteraitaelr.iOaln.Othneoththeeorthaenrdh,aintdco,uitldcobueldubetdouaesptoecatsrpaeticot differences between the samples used; the higher aspect ratio they show, the lower the ductility they will have. The differences in the manufacturing process between the fibres and the valorised polyethylene are in the final steps. In the case of the fibres, the polyethylene in its cast state leaves the cylinder nozzle at a pressure of 150 bars and is then pulled. This produces Recycled Fibers of Breaking strength [MPa] Elastic modulus [MPa] Strain at max. stress [%] Yield strength [MPa]PDF Image | Recycled Polyethylene Fibres for Structural Concrete
PDF Search Title:
Recycled Polyethylene Fibres for Structural ConcreteOriginal File Name Searched:
applsci-12-02867.pdfDIY PDF Search: Google It | Yahoo | Bing
Development of a solar powered Electric Ship The Electricship website originally started off as a project to develop a comprehensive renewable, affordable, modular electric ship... More Info
Modular Boat Hull Composite The case for a unsinkable, modular composite hybrid boat hull... More Info
MS Burgenstock Hybrid Electric Catamaran Lake Lucerne Unique shuttle servicing Lucerne to the Burgenstock Resort... More Info
Ground Power Unit GPU Powered by Lithium Ion Batteries The goal of the Ground Power Unit is to provide a readily accessible, modular, ready-to-power solution for remote power... More Info
CONTACT TEL: 608-238-6001 Email: greg@electricship.com (Standard Web Page)