Manufacture and Mechanical Properties of PET-Based Composites Reinforced with Zinc Particles

Osorio-Ramos, Jessica; Refugio-García, Elizabeth; Romero-Romo, Mario; Térres‐Rojas, Eduardo; Miranda-Hernández, José G.; Rocha–Rangel, Enrique

doi:10.11648/j.ajpc.20170602.13

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…If the Al is replaced with another metal in PET, the same behavior may not occur. Osorio-Ramos, et al [ 27 ] made composites based on recycled polyethylene terephthalate (r-PET) reinforced with Zn metal particles. The preparation method used was not injection moulding; rather, ground recycled-PET (r-PET) powder was mixed with zinc powder, cold pressed together at 350 MPa and sintered at 256 °C for 15 min.…”

Section: Resultsmentioning

confidence: 99%

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Aluminum-Filled Amorphous-PET, a Composite Showing Simultaneous Increase in Modulus and Impact Resistance

et al. 2020

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Metal-plastic composites have the potential to combine enhanced electrical and thermal conductivity with a lower density than a pure metal. The drawback has often been brittleness and low impact resistance caused by weak adhesion between the metal filler and the plastic. Based on our observation that aluminum foil sticks very strongly to poly(ethylene terephthalate) (PET) if it is used as a backing during compression moulding, this work set out to explore PET filled with a micro and a nano aluminum (Al) powder. In line with other composites using filler particles with low aspect-ratio, the tensile modulus increased somewhat with loading. However, unlike most particle composites, the strength did not decrease and most surprisingly, the Izod impact resistance increased, and in fact more than doubled with certain compositions. Thus, the Al particles acted as a toughening agent without decreasing the modulus and strength. This would be the first case where addition of a metal powder to a plastic increased the modulus and impact resistance simultaneously. The Al particles also acted as nucleating agents but it was not sufficient to make PET crystallize as fast as the injection moulding polyester, poly(butylene terephthalate) (PBT).

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Section: Resultsmentioning

confidence: 99%

“…There is only one work on metal-PET composites. Osorio-Ramos et al [ 27 ] made Zn-PET composites using a compaction type process, but the mechanical properties were low. The past work on injection moulded metal-plastic composites have not selected PET for the matrix.…”

Section: Introductionmentioning

confidence: 99%

Aluminum-Filled Amorphous-PET, a Composite Showing Simultaneous Increase in Modulus and Impact Resistance

et al. 2020

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“…The works conducted by the researchers are also aimed at the modification of PET with additives improving its properties [26][27][28][29] or enabling acceleration of the degradation process [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Properties of Polyethylene Terephthalate (PET) after Thermo-Oxidative Aging

et al. 2021

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The influence of the thermo-oxidative aging semi-crystalline polyethylene terephthalate process on the thermal and mechanical properties was analysed in the article. For this purpose, PET was aged at 140 °C for 21, 35 and 56 days. The research showed that as a result of aging, the amount of the crystalline phase increases by about 8%, which translates into the properties of the aged material. The glass transition and melt temperature of lamellar crystals formed during first and second crystallisation increase with aging. The mechanical properties of the material were analysed in the temperature range of 25 to 75 °C. The tests were showing an increase in Young’s modulus and a decrease in elongation at the break as a result of aging. This phenomenon was particularly visible during tests at 75 °C and during the morphological observation of the fracture surface, where the fracture character of the material changes from ductile to brittle. In the case of the material aged for the longest time, the temperature has a negligible influence on the elongation at break.

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“…For short-lived high activity radioisotope, enriched Zinc-68 was used which has a density of 7,133 gr/cm 3 with hexagonal crystalline structure (25)…”

Section: Experimental Section Target Materialsmentioning

confidence: 99%

Computation Study of Radioisotopes Gallium-68 (68Ga) Production using Long-lived & High Activity methods

Rattyananda

Martoprawiro

Arifah

et al. 2022

JSTNI

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Radioisotopes used for gamma-ray-based diagnostics have the main problem that imaging resolution quality.Gallium-68 is a positron (β+) emitting radioisotope that has better imaging resolution than gamma-based radioisotopes. Gallium-68 (68Ga) can be produced by irradiating natural gallium or zinc-68 enriched as a target with protons in an accelerator facility. Indonesia has planned to build a cyclotron type accelerator that operates in 13 MeV proton energy and 50 µA proton beam who has initials named DECY-13. Before it was commissioned for radioisotopes production purpose that was must conduct a preliminary study to determine 68Ga optimum irradiation time and properties, one of which was the monte carlo computation method using PHITS v3.24 software. Simulations were begun by irradiating proton with natural gallium target for 25 days with 2 days cooling and zinc-68 enriched for 120 minutes with cooling 10 minutes. The results at EOB of the long-lived process using the natGa target obtained total radioactivity of 189.42 MBq (5.12 mCi). The total radioactivity result of high activity process which used 68Zn enriched as a target was 268.6 GBq (7.259 Ci). the radioactivity was compared with another accelerator, that the long-lived process was too small and uneconomical to done, but the high activity process was feasible to produce. The results of this research expected will be considered as a feasibility study for the 68Ga production process in Indonesia in the future.

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Manufacture and Mechanical Properties of PET-Based Composites Reinforced with Zinc Particles

Cited by 3 publications

References 7 publications

Aluminum-Filled Amorphous-PET, a Composite Showing Simultaneous Increase in Modulus and Impact Resistance

Aluminum-Filled Amorphous-PET, a Composite Showing Simultaneous Increase in Modulus and Impact Resistance

Properties of Polyethylene Terephthalate (PET) after Thermo-Oxidative Aging

Computation Study of Radioisotopes Gallium-68 (68Ga) Production using Long-lived & High Activity methods

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