Particle technology as a uniform discipline? Towards a holistic approach to particles, their creation, characterisation, handling and processing!

Morgeneyer, Martin; Ramírez, Álvaro; Poletto, Massimo; Smith, Steve; Tweedie, Richard J.; Heng, Jerry Y. Y.; Maaß, Susanne; Bressot, Christophe

doi:10.1016/j.cherd.2018.11.029

Cited by 27 publications

(13 citation statements)

References 22 publications

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“…Furthermore, several studies highlighted nano-object emissions in the field of occupational hygiene at workplaces [141][142][143][144]. Considering the potential adverse effects regarding the addition of nanoparticles, the use of nanoparticle-free biolubricants is a challenge when synthesizing harmless lubricants [145].…”

Section: Challenges and Future Perspective Of Biolubricantsmentioning

confidence: 99%

An Overview of the Biolubricant Production Process: Challenges and Future Perspectives

et al. 2020

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The term biolubricant applies to all lubricants that are easily biodegradable and non-toxic to humans and the environment. The uses of biolubricant are still very limited when compared to those of mineral oils, although this trend is increasing and depends on investment in research and development (R&D). The increase in demand for biodegradable lubricants is related to the evolution of environmental regulations, with more restrictive rules being implemented to minimize environmental impact caused by inappropriate disposal. This study provides an overview of the types, production routes, properties, and applications of biolubricants. Biolubricants are classified as either natural or synthetic oils according to chemical composition. Natural oils are of animal or vegetable origin and are rarely used because they are unstable at high temperatures and form compounds that are harmful to equipment and machines. Synthetic oils are obtained from chemical reactions and are the best lubricants for demanding applications. They are obtained by various routes, mainly by obtaining straight or branched-chain monoesters, diesters, triesters, and polyol esters from vegetable oils. The conversion of triglyceride to esters can be followed or preceded by one or more reactions to improve reactions such as epoxidation and hydrogenation.

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Section: Challenges and Future Perspective Of Biolubricantsmentioning

confidence: 99%

An Overview of the Biolubricant Production Process: Challenges and Future Perspectives

et al. 2020

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“…Cases of nanoparticle exposure at workplaces during the synthesis of metal nanoparticles have also been reported [40]. Nano-safety and occupational health become a core subject in particle science [41]. As many previously reported syntheses of gold nanoparticles required lengthy reaction times, complicated operations, high temperatures, or multi-step manipulations, these approaches resulted in a greater chance of exposure to nanoparticles.…”

Section: Introductionmentioning

confidence: 95%

Morphology-Controlled Versatile One-Pot Synthesis of Hydrophobic Gold Nanodots, Nanobars, Nanorods, and Nanowires and Their Applications in Surface-Enhanced Raman Spectroscopy

et al. 2019

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Many previously reported syntheses of gold nanoparticles required lengthy reaction times, complicated operations, high temperatures, or multi-step manipulations. In this work, a morphology-controlled versatile one-pot synthesis of hydrophobic gold nanodots, nanobars, nanorods, and nanowires has been developed. A series of gold nanomaterials ranging from round nanodots, short nanobars, and long nanorods to ultrathin and ultralong nanowires (diameter <2 nm, length >2 μm) have been readily prepared by simply adjusting the feeding ratio of chloroauric acid to oleylamine, oleic acid, and triphenylsilane. The silk-like ultralong and ultrathin nanowires were found to have a single crystalline structure and may have significant potential applications in microelectronics and biosensors. Large sizes of gold spherical nanoparticles were obtained from gold nanodots via a seed-mediated growth approach. These nanoparticles and ultralong nanowires showed excellent surface-enhanced Raman scattering (SERS) activity in organic solvents and, therefore, were employed as efficient organic-soluble SERS substrates for the detection of hydrophobic food toxicants, such as 3,4-benzopyrene, and carcinogens, such as benzidine.

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“…Methods were analysed from typical application processes of industrial and domestic applications concerning possible hazards to health safety and environment. [37][38][39] Shandilya et al 40,41 studied the particle aerosol emissions during the abrasion of three products, namely, brick, wood and stainless steel. The quantity and rate of aerosol generation are the highest for bricks, whereas those for stainless steel are the lowest.…”

Section: Introductionmentioning

confidence: 99%

Particle emission of organic brake pad material: A review

Kumar

Ghosh

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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Wear of a brake pad emits airborne particles and is a major environmental issue. This review paper deals with the analysis of different brake pad composite materials and their wear phenomenon. The volume fraction and size distribution of non-asbestos organic airborne particles emitted from the brake pad material with time, load and speed have also been discussed under different braking conditions. The airborne particles are measured by different aerosol instruments. TSI P-Trak, GRIMM aerosol spectrometer and scanning mobility particle sizer were used by different researchers for measuring ultrafine particles, micron-sized particles and aerodynamic nanoparticles, respectively. This paper shows that the wear particles emitted from the brake pad material vary in diameter between 10 nm and 10 μm under various loads and sliding velocities. These airborne particles such as coarse fine (diameters > 1 μm), fine (diameters between 100 nm and 1 μm) and ultrafine (diameters < 100 nm) particles are responsible for health hazards to the human respiratory system. This study has accumulated the data of different ingredients of the brake pad with airborne particle emission from various studies, which may be helpful for the evolution of new composite materials in the near future.

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Particle technology as a uniform discipline? Towards a holistic approach to particles, their creation, characterisation, handling and processing!

Cited by 27 publications

References 22 publications

An Overview of the Biolubricant Production Process: Challenges and Future Perspectives

An Overview of the Biolubricant Production Process: Challenges and Future Perspectives

Morphology-Controlled Versatile One-Pot Synthesis of Hydrophobic Gold Nanodots, Nanobars, Nanorods, and Nanowires and Their Applications in Surface-Enhanced Raman Spectroscopy

Particle emission of organic brake pad material: A review

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