Presence of iron in polymers extruded with corrosive contaminants or abrasive fillers

Franco, Marcos Fernando; Gadioli, Renan; Paoli, Marco-Aurélio De

doi:10.1590/0104-1428.10017

Cited by 10 publications

(5 citation statements)

References 21 publications

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“…The latter evidence emerges, at comparable levels, also with other polymeric materials. Consistently, presence of contaminants in extruded polymers has been recently observed [42].…”

Section: Discussionsupporting

confidence: 69%

Ferromagnetic contamination of Ultra-Low-Field-NMR sample containers. Quantification of the problem and possible solutions

Bevilacqua,

Biancalana,

Consumi

et al. 2020

Preprint

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The presence of a weak remanence in Ultra-Low-Field (ULF) NMR sample containers is investigated on the basis of proton precession. The high-sensitivity magnetometer used for the NMR detection, enables simultaneously the measurement of the static field produced in the sample proximity by ferromagnetic contaminants. The presence of the latter is studied by high resolution chemical analyses of the surface, based on X-ray fluorescence spectroscopy and secondary ions mass spectroscopy. Methodologies to reduce the contamination are explored and characterized. This study is of relevance in any ULF-NMR experiment, as in the ULF regime spurious ferromagnetism becomes easily a dominant cause of artefacts.

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“…The latter evidence emerges, at comparable levels, also with other polymeric materials. Consistently, presence of contaminants in extruded polymers has been recently observed [42].…”

Section: Discussionsupporting

confidence: 69%

Ferromagnetic contamination of Ultra-Low-Field-NMR sample containers. Quantification of the problem and possible solutions

Bevilacqua,

Biancalana,

Consumi

et al. 2020

Preprint

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show abstract

“…The predicted market shares are US$ 3.29 billion dollars for talc in 2021 and US$ 2.7 billion dollars for glass fibers in 2022 [68] . These reinforcing agents produce excellent mechanical and thermal properties; however, they have a high density and are abrasive to the processing equipment [69] . Additionally, mechanical recycling of these composites is energy consuming and not cost effective for industrial purposes [70] .…”

Section: Reinforcing Agentsmentioning

confidence: 99%

Bio-based additives for thermoplastics

Paoli

Waldman

2019

Polímeros

Self Cite

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RbstractPresently, there are significant research efforts being undertaken to produce bio-based chemicals in a cost-effective way. The polymer chemists and engineers are no exception to this. Additives for polymers correspond to a large section of the plastics market and bio-based products can substitute many of them. The scientific literature has a large number of publications focusing on the preparation and testing of bio-based polymer additives; however, the small number of products that reach the market, which are bio-based, does not reflect this. In terms of the global market, the environmentally friendly appeal of bio-based additives alone is not sufficient; the bio-based product must have similar or better performance than the oil-based and be comparable or lower in cost than the existing products. In this review, we focus on bio-based polymer additives that have already reached the market or have a real possibility of reaching the market in a cost-effective way.

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“…6,7 Moreover, the functional industrial products manufactured with FDM are mainly utilized in biomedical, automotive, aerospace and architecture fields. 8,9 For the first time, Momber et al 1 investigated the effects of polymer hardness on abrasive wear resis-tance of organic coatings designed to protect wind-powered marine structures from corrosion with variable forces. The tests were carried out with a specially designed Taber etching machine.…”

Section: Introductionmentioning

confidence: 99%

“…Franco et al 9 examined the wear of extruder screws. Wear here causes the presence of metals in the processed polymer.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Wear Behavior of PETG and PLA Parts Fabricated with Fused Deposition Modelling Under Different Wear Conditions

Gökmen¹

2023

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Polyethylene terephthalate glycol (PETG) has been widely used in the production of industrial parts with additive manufacturing due to its high strength and temperature performance. In this study, the abrasive wear behavior of PETG specimens produced by the fused deposition modelling (FDM) method was characterized under different wear conditions (3 different sliding speeds and loads). Poly lactic acid (PLA), which is widely used in additive manufacturing with FDM, has been examined for comparison purposes. Experimental results showed that PETG specimens showed the best abrasion resistance in all abrasion conditions. Different parameters were used in wear conditions. It was determined that the wear behavior of PETG could be optimized. PETG samples had the lowest coefficient of friction. Worn surface analysis results showed that micro-cutting, abrasive wear, and delamination wear mechanisms are active wear mechanisms.

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Presence of iron in polymers extruded with corrosive contaminants or abrasive fillers

Cited by 10 publications

References 21 publications

Ferromagnetic contamination of Ultra-Low-Field-NMR sample containers. Quantification of the problem and possible solutions

Ferromagnetic contamination of Ultra-Low-Field-NMR sample containers. Quantification of the problem and possible solutions

Bio-based additives for thermoplastics

Investigation on Wear Behavior of PETG and PLA Parts Fabricated with Fused Deposition Modelling Under Different Wear Conditions

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