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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..

Futuristic nanomaterials and composites: part I. (2015)
Journal Article
LEHMHUS, D., NJUGUNA, J. and PARAMSOTHY, M. 2015. Futuristic nanomaterials and composites: part I. JOM: journal of the Minerals, Metals and Materials Society [online], 67(12), pages 2844-2847. Available from: https://doi.org/10.1007/s11837-015-1619-x

The present special topic 'Futuristic Nanomaterials and Composites: Part I' captures the structural as well as functional aspects of nanomaterials and nanocomposites that are unique in some specific way when compared to their microscale counterparts.... Read More about Futuristic nanomaterials and composites: part I..

Compression-after-impact (CAI) performance of epoxycarbon fibre-reinforced nanocomposites using nanosilica and rubber particle enhancement. (2014)
Journal Article
NIKFAR, B. and NJUGUNA, J. 2014. Compression-after-impact (CAI) performance of epoxycarbon fibre-reinforced nanocomposites using nanosilica and rubber particle enhancement. IOP conference series: materials science and engineering [online], 64(1), Article 012009. Available from: https://doi.org/10.1088/1757-899X/64/1/012009

One of the problems in the design of automotive structures and body parts made by fibre reinforced composites is that these materials are susceptible to a small energy impact caused by for instance, accidental tool drop during maintenance or stone st... Read More about Compression-after-impact (CAI) performance of epoxycarbon fibre-reinforced nanocomposites using nanosilica and rubber particle enhancement..

A review on the effect of mechanical drilling on polymer nanocomposites. (2014)
Journal Article
STAROST, K. and NJUGUNA, J. 2014. A review on the effect of mechanical drilling on polymer nanocomposites. IOP conference series: materials science and engineering [online], 64(1), Article 012031. Available from: https://doi.org/10.1088/1757-899X/64/1/012031

Over the past decade, polymer nanocomposites have undergone intensive research and development ensued by its increasing implementation within commercial applications. Consequently, the full life-cycle performance and any health risks associated with... Read More about A review on the effect of mechanical drilling on polymer nanocomposites..

Characterization of synthesized polyurethane/montmorillonite nanocomposites foams. (2014)
Journal Article
ANSARI, F., SACHSE, S., MICHALOWSKI, S., KAVOSH, M., PIELICHOWSKI, K. and NJUGUNA, J. 2014. Characterization of synthesized polyurethane/montmorillonite nanocomposite foams. IOP conference series: materials science and engineering [online], 64(1), Article 012039. Available from: https://doi.org/10.1088/1757-899X/64/1/012039

Nanophased hybrid composites based on polyurethane/montmorillonite (PU/MMT) have been fabricated. The nanocomposite which was formed by the addition of a polyol premix with 4,4′-diphenylmethane diisocyanate to obtain nanophased polyurethane foams whi... Read More about Characterization of synthesized polyurethane/montmorillonite nanocomposites foams..

Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste. (2014)
Journal Article
ADEGBOTOLU, U.V., NJUGUNA, J., POLLARD, P. and YATES, K. 2014. Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste. IOP conference series: materials science and engineering [online], 64, Article 012023. Available from: https://doi.org/10.1088/1757-899X/64/1/012023

Due to the European Union (EU) waste frame work directive (WFD), legislations have been endorsed in EU member states such as UK for the Recycling of wastes with a vision to prevent and reduce landfilling of waste. Spent oil based drilling mud (drilli... Read More about Waste to want: polymer nanocomposites using nanoclays extracted from oil based drilling mud waste..

Mechanical and impact performance of three-phase polyamide 6 nanocomposites. (2014)
Journal Article
GENDRE, L., NJUGUNA, J., ABHYANKAR, H. and ERMINI, V. 2015. Mechanical and impact performance of three-phase polyamide 6 nanocomposites. Materials and design [online], 66(Part B), pages 486-491. Available from: https://doi.org/10.1016/j.matdes.2014.08.005

In this work, three-phase nanocomposites using multiscale reinforcements were studied to evaluate the influence of nanofillers on static and dynamic mechanical properties at varying temperature conditions. In particular, short-fibres reinforced polya... Read More about Mechanical and impact performance of three-phase polyamide 6 nanocomposites..

Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites. (2014)
Journal Article
NASSIOPOULOS, E. and NJUGUNA, J. 2015. Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites. Materials and design [online], 66(Part B), pages 473-485. Available from: https://doi.org/10.1016/j.matdes.2014.07.051

In this study, the thermo-mechanical performance of flax fibre reinforced poly lactic acid (PLA) biocomposites was investigated for the potential use in load bearing application such as body-in-white and body structures in the automotive sector. Focu... Read More about Thermo-mechanical performance of poly(lactic acid)/flax fibre-reinforced biocomposites..

Abstract book for the proceedings of the 2nd International conference on structural nano composites (NANOSTRUC 2014), 20-21 May 2014, Madrid, Spain. (2014)
Conference Proceeding
NJUGUNA, J., STAROST, K. and VERDEJO, R. (eds.) 2014. Abstract book for the proceedings of the 2nd International conference on structural nano composites (NANOSTRUC 2014), 20-21 May 2014, Madrid, Spain.

The purpose of the 2nd International Conference on Structural Nano Composites (NANOSTRUC 2014) is to promote activities in various areas of materials and structures by providing a forum for exchange of ideas, presentation of technical achievements an... Read More about Abstract book for the proceedings of the 2nd International conference on structural nano composites (NANOSTRUC 2014), 20-21 May 2014, Madrid, Spain..

The effect of matrix and reinforcement material selection on the tensile properties of hybrid composites. (2014)
Journal Article
SILVA, F., SACHSE, S., ZHU, H., PIELICHOWSKI, K., LESZCZYNSKA, A. and NJUGUNA, J. 2014. The effect of matrix and reinforcement material selection on the tensile properties of hybrid composites. Journal of sustainable mobility, 1(1), pages 37-52. Available from: https://doi.org/10.9774/GLEAF.2350.2014.00005

In order to develop advanced materials as lightweight structures three-phased composites were prepared using nano-fillers, nano-silica (nano-SiO2) and nano-clay and micro glass-spheres to reinforce two kinds of glass-fibre reinforced thermoplastic ma... Read More about The effect of matrix and reinforcement material selection on the tensile properties of hybrid composites..

Cost modelling to support optimised selection of the end of life options for automotive components. (2014)
Journal Article
XU, Y., SANCHEZ, J.F. and NJUGUNA, J. 2014. Cost modelling to support optimised selection of the end of life options for automotive components. International journal of advanced manufacturing technology [online], 73(1-4), pages 399-407. Available from: https://doi.org/10.1007/s00170-014-5804-9

In automotive sector, the End-of-Life components, especially the uni-material components e.g. steel, plastics etc., traditionally normally go to material recycling. However, this conventional disposing approach has nowadays moved towards the secondar... Read More about Cost modelling to support optimised selection of the end of life options for automotive components..

Effect of nanofillers on low energy impact performance of sandwich structures with nanoreinforced polyurethane foam cores. (2014)
Journal Article
SACHSE, S., PORURI, M., SILVA, F., MICHALOWSKI, S., PIELICHOWSKI, K. and NJUGUNA, J. 2014. Effect of nanofillers on low energy impact performance of sandwich structures with nanoreinforced polyurethane foam cores. Journal of sandwich structures and materials [online], 16(2), pages 173-194. Available from: https://doi.org/10.1177/1099636213512497

Sandwich panels were fabricated with nanoclay-filled polyurethane foams and glass fiber-reinforced polyamide and polypropylenes face sheets. Nanoclay-filled foam cores, with organophilic montmorillonite loadings of 0-10 wt%, were synthesized through... Read More about Effect of nanofillers on low energy impact performance of sandwich structures with nanoreinforced polyurethane foam cores..

Assessment of temporal dose-toxicity relationship of fumed silica nanoparticle in human lung A549 cells by conventional cytotoxicity and 1H-NMR-based extracellular metabonomic assays. (2014)
Journal Article
IRFAN, A., CAUCHI, M., EDMANDS, W., GOODERHAM, N. J., NJUGUNA, J. and ZHU, H. 2014. Assessment of temporal dose-toxicity relationship of fumed silica nanoparticle in human lung A549 cells by conventional cytotoxicity and 1H-NMR-based extracellular metabonomic assays. Toxicological sciences [online], 138 (2), pages 354-364. Available from: https://doi.org/10.1093/toxsci/kfu009

As nanoparticles could form aggregates in biological systems, the dynamics of their dispersity drives the temporal effect of nanoparticles in vitro. To test this hypothesis, the fumed silica nanoparticles (SiNPs) that have primary sizes of 7-14 nm an... Read More about Assessment of temporal dose-toxicity relationship of fumed silica nanoparticle in human lung A549 cells by conventional cytotoxicity and 1H-NMR-based extracellular metabonomic assays..

Recent development of flax fibres and their reinforced composites based on different polymeric matrices. (2013)
Journal Article
ZHU, J., ZHU, H., NJUGUNA, J. and ABHYANKAR, H., 2013. Recent development of flax fibres and their reinforced composites based on different polymeric matrices. Materials [online], 6(11), pages 5171-5198. Available from: https://doi.org/10.3390/ma6115171

This work describes flax fibre reinforced polymeric composites with recent developments. The properties of flax fibres, as well as advanced fibre treatments such as mercerization, silane treatment, acylation, peroxide treatment and coatings for the e... Read More about Recent development of flax fibres and their reinforced composites based on different polymeric matrices..

Effect of fibre configurations on mechanical properties of flax/tannin composites. (2013)
Journal Article
ZHU, J., NJUGUNA, J., ABHYANKAR, H., ZHU, H., PERREUX, D., THIEBAUD, F., CHAPELLE, D., PIZZI, A., SAUGET, A., DE LARMINAT, A. and NICOLLIN, A. 2013. Effect of fibre configurations on mechanical properties of flax/tannin composites. Industrial crops and products [online], 50, pages 68-76. Available from: https://doi.org/10.1016/j.indcrop.2013.06.033

Flax reinforced tannin-based composites have a potential to be used in vehicle applications due to the environmental advantages and good mechanical properties. In this paper, the effects of fibre configuration on mechanical properties of flax/tannin... Read More about Effect of fibre configurations on mechanical properties of flax/tannin composites..

Structural flax/PLA biocomposites: understanding of their thermo-mechanical behaviour. (2013)
Presentation / Conference
NASSIOPOULOS, E., ABHYANKAR, H. and NJUGUNA, J. 2013. Structural flax/PLA biocomposites: understanding of their thermo-mechanical behaviour. Presented at the 21st annual international conference on composites/nano engineering (ICCE-NANO 21), 21-27 July 2013, Tenerife, Spain.

The extended use of bio-composites for the manufacturing of vehicle components would largely benefit the industry. However, the properties of biocomposites, their mechanical performance under different environments and the effect of different loading... Read More about Structural flax/PLA biocomposites: understanding of their thermo-mechanical behaviour..

An experimental investigation into localised low-velocity impact loading on glass fibre-reinforced polyamide automotive product. (2013)
Journal Article
MOUTI, Z., WESTWOOD, K., LONG, D. and NJUGUNA, J. 2013. An experimental investigation into localised low-velocity impact loading on glass fibre-reinforced polyamide automotive product. Composite structures [online], 104, pages 43-53. Available from: https://doi.org/10.1016/j.compstruct.2013.03.014

In the automotive industry, more and more engineered parts are shifting from metals to engineering plastics. However localised impact loading and long term ageing effects of under-the-hood plastic components is not well understood. In this paper, loc... Read More about An experimental investigation into localised low-velocity impact loading on glass fibre-reinforced polyamide automotive product..

Energy absorption characteristics of nano-composite conical structures. (2012)
Journal Article
SILVA, F., SACHSE, S. and NJUGUNA, J. 2012. Energy absorption characteristics of nano-composite conical structures. IOP conference series: materials science and engineering [online], 40(1): proceedings of 2012 international conference on Structural nano composites (NANOSTRUC 2012), 2-4 July 2012, Cranfield, UK, article 012010. Available from: https://doi.org/10.1088/1757-899X/40/1/012010

The effect of the filler material on the energy absorption capabilities of polyamide 6 composite structures is studied in details in the present paper. The axial dynamic and quasi-static collapse of conical structures was conducted using a high energ... Read More about Energy absorption characteristics of nano-composite conical structures..

Physical characteristics of nanoparticles emitted during drilling of silica based polyamide 6 nanocomposites. (2012)
Journal Article
SACHSE, S., SILVA, F., IRFAN, A., ZHU, H., PIELICHOWSKI, K., LESZCZYNSKA, A., BLAZQUEZ, M., KAZMINA, O., KUZMENKO, O. and NJUGUNA, J. 2012. Physical characteristics of nanoparticles emitted during drilling of silica based polyamide 6 nanocomposites. IOP conference series: materials science and engineering [online], 40(1): proceedings of 2012 international conference on Structural nano composites (NANOSTRUC 2012), 2-4 July 2012, Cranfield, UK, article 012012. Available from: https://doi.org/10.1088/1757-899X/40/1/012012

During the past decade, polymer nanocomposites have emerged as a novel and rapidly developing class of materials and attracted considerable investment in research and development worldwide. However, there is currently a lack of information available... Read More about Physical characteristics of nanoparticles emitted during drilling of silica based polyamide 6 nanocomposites..

Assessment of nanoparticle release and associated health effect of polymer-silicon composites. (2012)
Journal Article
ZHU, H., IRFAN, A., SACHSE, S. and NJUGUNA, J. 2012. Assessment of nanoparticle release and associated health effect of polymer-silicon composites. IOP conference series: materials science and engineering [online], 40(1): proceedings of 2012 international conference on Structural nano composites (NANOSTRUC 2012), 2-4 July 2012, Cranfield, UK, article 012015. Available from: https://doi.org/10.1088/1757-899X/40/1/012015

Little information is currently available on possible release of nanomaterials or/and nanoparticles (NP) from conventional and novel products and associated health effect. This study aimed to assess the possible release of NP during the application s... Read More about Assessment of nanoparticle release and associated health effect of polymer-silicon composites..