Wear characterizations of polyoxymethylene (POM) reinforced with carbon nanotubes (POM/CNTs) using the paraffin oil dispersion technique.

Yousef, Samy; Visco, A.M.; Galtieri, G.; Njuguna, James

doi:10.1007/s11837-015-1674-3

Computational analysis and optimization of a MEMS-based piezoresistive accelerometer for head injuries monitoring. (2017)
Presentation / Conference Contribution
MESSINA, M., NJUGUNA, J. and PALAS, C. 2017. Computational analysis and optimization of a MEMS-based piezoresistive accelerometer for head injuries monitoring. In Proceedings of the 2017 IEEE sensors conference, 29 October - 1 November 2017, Glasgow, UK. New York: IEEE [online], article number 8233897, pages 91-93. Available from: https://doi.org/10.1109/ICSENS.2017.8233897

This work focuses on the design improvement of a tri-axial piezoresistive accelerometer specifically designed for head injuries monitoring where medium-G impacts are common, for example in sports such as racing cars. The device requires the highest s... Read More about Computational analysis and optimization of a MEMS-based piezoresistive accelerometer for head injuries monitoring..

Assessment of nanoparticles release into the environment during drilling of carbon nanotubes/epoxy and carbon nanofibres/epoxy nanocomposites. (2017)
Journal Article
STAROST, K., FRIJNS, E., VAN LAER, J., FAISAL, N., EGIZABAL, A., ELIZEXTEA, C., BLAZQUEZ, M., NELISSEN, I. and NJUGUNA, J. 2017. Assessment of nanoparticles release into the environment during drilling of carbon nanotubes/epoxy and carbon nanofibres/epoxy nanocomposites. Journal of hazardous materials [online], 340, pages 57-66. Available from: https://doi.org/10.1016/j.jhazmat.2017.06.057

The risk assessment, exposure and understanding of the release of embedded carbon nanotubes (CNTs) and carbon nanofibers (CNFs) from commercial high performance composites during machining processes is yet to be fully evaluated and quantified. In thi... Read More about Assessment of nanoparticles release into the environment during drilling of carbon nanotubes/epoxy and carbon nanofibres/epoxy nanocomposites..

Theoretical design and analysis of a sensing system for high pressure and temperature measurement in subsea underwater applications. (2017)
Presentation / Conference Contribution
AMOS, S., PRABHU, R. and NJUGUNA, J. 2017. Theoretical design and analysis of a sensing system for high pressure and temperature measurement in subsea underwater applications. In Proceedings of OCEANS 2017, 19-22 June 2017, Aberdeen, UK. New York: IEEE [online], article number 8085023, pages 2680-2686. Available from: https://doi.org/10.1109/OCEANSE.2017.8085023

The theoretical design and analysis of a metal coated hybrid sensing system of Fibre Bragg Grating (FBG) and Extrinsic Fabry-Perot Interferometer (EFPI) cavity for high pressure high temperature (HPHT) measurement in subsea underwater applications is... Read More about Theoretical design and analysis of a sensing system for high pressure and temperature measurement in subsea underwater applications..

The effect of nanosilica (SiO2) and nanoalumina (Al2O3) reinforced polyester nanocomposites on aerosol nanoparticle emissions into the environment during automated drilling. (2017)
Journal Article
STAROST, K., FRIJNS, E., VAN LAER, J., FAISAL, N., EGIZABAL, A., ELIZEXTEA, C., NEILSSEN, I., BALZQUEZ, M. and NJUGUNA, J. 2017. The effect of nanosilica (SiO2) and nanoalumina (Al2O3) reinforced polyester nanocomposites on aerosol nanoparticle emissions into the environment during automated drilling. Aerosol science and technology [online], 51(9), pages 1035-1046. Available from: https://doi.org/10.1080/02786826.2017.1330535

The aim of this study is to investigate the effect nanosilica and nanoalumina has on nanoparticle release from industrial nanocomposites due to drilling for hazard reduction whilst simultaneously obtaining the necessary mechanical performance. This s... Read More about The effect of nanosilica (SiO2) and nanoalumina (Al2O3) reinforced polyester nanocomposites on aerosol nanoparticle emissions into the environment during automated drilling..

Elaboration of properties of graphene oxide reinforced epoxy nanocomposites. (2017)
Journal Article
BARI, P., KHAN, S., NJUGUNA, J. and MISHRA, S. 2017. Elaboration of properties of graphene oxide reinforced epoxy nanocomposites. International journal of plastics technology [online], 21(1), pages 194-208. Available from: https://doi.org/10.1007/s12588-017-9180-9

In this research work, properties of graphene oxide (GO) based epoxy nanocomposites, prepared via the solution blending method, are elaborated. Different loadings (0.1-0.5 wt%) of GO were added into epoxy resin, and their effects were studied on thei... Read More about Elaboration of properties of graphene oxide reinforced epoxy nanocomposites..

Oil based drilling fluid waste: an overview on environmentally persistent pollutants. (2017)
Presentation / Conference Contribution
SIDDIQUE, S., KWOFFIE, L., ADDAE-AFOAKWA, K., YATES, K. and NJUGUNA, J. 2016. Oil based drilling fluid waste: an overview on environmentally persistent pollutants. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012008. Available from: https://doi.org/10.1088/1757-899X/195/1/012008

Operational discharges of spent drilling fluid, produced water, and accumulated drill cuttings from oil and gas industry are a continuous point source of environmental pollution. To meet the strict environmental standard for waste disposal, oil and g... Read More about Oil based drilling fluid waste: an overview on environmentally persistent pollutants..

Tensile and flexural properties of hybrid graphene oxide/epoxy carbon fibre reinforced composites. (2017)
Presentation / Conference Contribution
WATSON, G., STAROST, K., BARI, P., FAISAL, N., MISHRA, S. and NJUGUNA, J. 2016. Tensile and flexural properties of hybrid graphene oxide/epoxy carbon fibre reinforced composites. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012009. Available from: https://doi.org/10.1088/1757-899X/195/1/012009

In this study, nano-sized graphene oxide sheets were homogenously dispersed via sonication methods in epoxy followed by vacuum resin infusion for the fabrication of the epoxy, graphene oxide (GO) and micro-sized carbon fibre reinforced nanocomposites... Read More about Tensile and flexural properties of hybrid graphene oxide/epoxy carbon fibre reinforced composites..

Environmental particle emissions due to automated drilling of polypropylene composites and nanocomposites reinforced with talc, montmorillonite and wollastonite. (2017)
Presentation / Conference Contribution
STAROST, K., FRIJNS, E., LAER, J.V., FAISAL, N., EGIZABAL, A., ELIZEXTEA, C., NELISSEN, I., BLAZQUEZ, M. and NJUGUNA, J. 2016. Environmental particle emissions due to automated drilling of polypropylene composites and nanocomposites reinforced with talc, montmorillonite and wollastonite. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012011. Available from: https://doi.org/10.1088/1757-899X/195/1/012011

In this study, the effect on nanoparticle emissions due to drilling on Polypropylene (PP) reinforced with 20% talc, 5% montmorillonite (MMT) and 5% Wollastonite (WO) is investigated. The study is the first to explore the nanoparticle release from WO... Read More about Environmental particle emissions due to automated drilling of polypropylene composites and nanocomposites reinforced with talc, montmorillonite and wollastonite..

The 3rd international conference on structural nano composites (NANOSTRUC2016). (2017)
Journal Article
NJUGUNA, J. 2017. The 3rd international conference on structural nano composites (NANOSTRUC2016). IOP conference series: materials science and engineering [online], 195: proceedings of 3rd International conference on structural nano composites (NANOSTRUC2016): Nanoscience and nanotechnologies; recent advances towards nanoproducts and applications, 12-15 September 2016, Aberdeen, UK, article 011001. Available from: https://doi.org/10.1088/1757-899X/195/1/011001

The Robert Gordon University, Aberdeen hosted The NANOSTRUC 2016 in Aberdeen (Scotland, United Kingdom). The conference focused on 'Nanoscience and Nanotechnologies – Recent Advances towards Nanoproducts and Applications'. It promoted activities in v... Read More about The 3rd international conference on structural nano composites (NANOSTRUC2016)..

Physico‐mechanical properties of nano‐polystyrene‐decorated graphene oxide–epoxy composites. (2017)
Journal Article
KHOBRAGADE, P.S., HANSORA, D.P., NAIK, J.B., NJUGUNA, J. and MISHRA, S. 2017. Physico-mechanical properties of nano polystyrene decorated graphene oxide-epoxy composites. Polymer international [online], 66(10), pages 1402-1409. Available from: https://doi.org/10.1002/pi.5392

In this work, nano polystyrene (nPS) decorated graphene oxide (GO) hybrid nanostructures were successfully synthesized using stepwise micro emulsion polymerization, and characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffractom... Read More about Physico‐mechanical properties of nano‐polystyrene‐decorated graphene oxide–epoxy composites..

Effect of multilayered nanostructures on the physico-mechanical properties of ethylene vinyl acetate-based hybrid nanocomposites. (2017)
Journal Article
KHOBRAGADE, P.S., HANSORA, D.P., NAIK, J.B., NJUGUNA, J. and MISHRA, S. 2018. Effect of multilayered nanostructures on the physico-mechanical properties of ethylene vinyl acetate-based hybrid nanocomposites. Polymer composites [online], 39(10), pages 3519-3527. Available from: https://doi.org/10.1002/pc.24371

Exfoliated graphene oxide (GO) and Mg-Al-layered double hydroxides (LDHs) nanostructures (LDHs@GO)-filled ethylene vinyl acetate (EVA)-based hybrid nanocomposites were prepared by solution reflux technique followed by injection molding. The physico-m... Read More about Effect of multilayered nanostructures on the physico-mechanical properties of ethylene vinyl acetate-based hybrid nanocomposites..

Core-double shell hybrid nanocomposites as multi-functional advanced materials. (2017)
Journal Article
KHOBRAGADE, P.S., HANSORA, D.P., NAIK, J.B., NJUGUNA, J. and MISHRA, S. 2017. Core-double shell hybrid nanocomposites as multi-functional advanced materials. Polymer bulletin [online], 74(11), pages 4681-4700. Available from: https://doi.org/10.1007/s00289-017-1983-5

In this research work, we report circular type silane-modified CaCO3 (as core) nanoparticles (NP) encapsulated with polystyrene (PS) and polymethyl methacrylate (PMMA) (as double shell layers). These core-double shell [CaCO3-PS/PMMA] hybrid nanostruc... Read More about Core-double shell hybrid nanocomposites as multi-functional advanced materials..

Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites. (2016)
Thesis
ADEGBOTOLU, U.V. 2016. Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites. Robert Gordon University, PhD thesis.

Spent oil-based drilling fluid and cutting wastes are global liabilities due to their hazardous hydrocarbon content, which impacts negatively on flora, fauna, and global carbon footprint. The formulation of two demulsifiers to ensure chemically-enhan... Read More about Demulsification and recycling of spent oil based drilling fluid as nanofiller for polyamide 6 nanocomposites..

Abstract book for the proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-15 September 2016, Aberdeen, UK. (2016)
Presentation / Conference Contribution
STAROST, K. and NJUGUNA, J. (eds.) 2016. Abstract book for the proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-15 September 2016, Aberdeen, UK. Berlin: Nanostruc [online]. Available from: https://web.archive.org/web/20180123120946/http://www.nanostruc.info/nanostruc-conference.html

The theme of the 3rd NANOSTRUC 2016 conference is on ‘Nanoscience and Nanotechnologies – Recent Advances towards Nanoproducts and Applications’. The conference is aimed to promote activities in various areas on materials and structures by providing a... Read More about Abstract book for the proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-15 September 2016, Aberdeen, UK..

Preparation and analysis of multi-layered hybrid nanostructures. (2016)
Journal Article
KHOBRAGADE, P.S., HANSORA, D.P., NAIK, J.B., NJUGUNA, J. and MISHRA, S. 2016. Preparation and analysis of multi-layered hybrid nanostructures. Applied clay science [online], 132-133, pages 668-674. Available from: https://doi.org/10.1016/j.clay.2016.08.022

In this study, we report a simple and efficient (bath ultrasonication) method for the preparation of multi-functional layered hybrid nanostructures using graphene oxide (GO) and modified Mg-Al layered double hydroxides (LDH) [LDH@GO]. The functional... Read More about Preparation and analysis of multi-layered hybrid nanostructures..

Stress analysis at the interface of metal-to-metal adhesively bonded joints subjected to 4-point bending: finite element method. (2016)
Journal Article
PRATHURU, A.K., FAISAL, N.H., JIHAN, S., STEEL, J.A. and NJUGUNA, J. 2017. Stress analysis at the interface of metal-to-metal adhesively bonded joints subjected to 4-point bending: finite element method. Journal of adhesion [online], 93(11), pages 855-878. Available from: https://doi.org/10.1080/00218464.2016.1172309

This paper presents a study of stress states in two-dimensional models of metal-to-metal adhesively bonded joints subjected to 4-point flexural loading using the finite element (FE) method. The FE simulations were carried out on adhesive bonded joint... Read More about Stress analysis at the interface of metal-to-metal adhesively bonded joints subjected to 4-point bending: finite element method..

Flexural, impact, rheological and physical characterizations of POM reinforced by carbon nanotubes and paraffin oil. (2016)
Journal Article
YOUSEF, S., VISCO, A., GALTIERI, G and NJUGUNA, J. 2016. Flexural, impact, rheological and physical characterizations of POM reinforced by carbon nanotubes and paraffin oil. Polymers for advanced technologies [online], 27(10), pages 1338-1344. Available from: https://doi.org/10.1002/pat.3801

The paraffin oil dispersion technique innovated in the recent years to synthesize bulk polymer nanocomposite materials has a uniform dispersion. This research work aims to study the effect of added carbon nanotubes (CNTs) on flexural, impact and rheo... Read More about Flexural, impact, rheological and physical characterizations of POM reinforced by carbon nanotubes and paraffin oil..

Thermal, mechanical and rheological behaviors of nanocomposites based on UHMWPE/paraffin oil/carbon nanofiller obtained by using different dispersion techniques. (2016)
Journal Article
VISCO, A., YOUSEF, S., GALTIERI, G., NOCITA, D., PISTONE, A. and NJUGUNA, J. 2016. Thermal, mechanical and rheological behaviors of nanocomposites based on UHMWPE/paraffin oil/carbon nanofiller obtained by using different dispersion techniques. JOM: journal of the Minerals, Metals and Materials Society [online], 68(4), pages 1078-1089. Available from: https://doi.org/10.1007/s11837-016-1845-x

Ultra-high molecular weight polyethylene (UHMWPE) is a very attractive polymer employed as a high performance material. For its high viscosity, dispersion of fillers is considered a critical point in UHMWPE nanocomposites preparation process. Current... Read More about Thermal, mechanical and rheological behaviors of nanocomposites based on UHMWPE/paraffin oil/carbon nanofiller obtained by using different dispersion techniques..

Futuristic nanomaterials and composites: part II. (2015)
Journal Article
KIM, C-S., LEHMHUS, D., NJUGUNA, J., PARAMSOTHY, M. and SHOFNER, M.L. 2015. Futuristic nanomaterials and composites: part II. JOM: journal of the Minerals, Metals and Materials Society [online], 68(1), pages 261-264. Available from: https://doi.org/10.1007/s11837-015-1685-0

The present special topic Futuristic Nanomaterials and Composites: Part II is a continuation of last month's topic Futuristic Nanomaterials and Composites: Part I. In this continuation, inspiration is once again drawn from two conferences: (1) NANOST... Read More about Futuristic nanomaterials and composites: part II..

Wear characterizations of polyoxymethylene (POM) reinforced with carbon nanotubes (POM/CNTs) using the paraffin oil dispersion technique. (2015)
Journal Article
YOUSEF, S., VISCO, A.M., GALTIERI, G. and NJUGUNA, J. 2016. Wear characterizations of polyoxymethylene (POM) reinforced with carbon nanotubes (POM/CNTs) using the paraffin oil dispersion technique. JOM: journal of the Minerals, Metals and Materials Society [online], 68(1), pages 288-299. Available from: https://doi.org/10.1007/s11837-015-1674-3

The wear of polyoxymethylene (POM) is considered a key design parameter of polymer gears and some mechanical applications, and it determines the service time span. This work investigates the influence of carbon nanotubes (CNTs) on the specific wear r... Read More about Wear characterizations of polyoxymethylene (POM) reinforced with carbon nanotubes (POM/CNTs) using the paraffin oil dispersion technique..

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