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Hojjat Mahi, Ph.D.

Hojjat Mahi

Polymer specialist

Hojjat Mahi has a postdoctoral degree in polymer engineering and a PhD in chemical engineering from Université Laval as well as a masters in polymer engineering from Tarbiat Modares University in Iran and a bachelor’s degree in polymer engineering (surface coverings) from Polytechnic university of Tehran in Iran. Before joining Investissement Québec - CRIQ, he was a biomaterials scientist at FPInnovations and also worked for over five years in the polymer and plastics industry.

His main areas of scientific activity include converting plastic waste, developing new plastic materials, testing and formulating polymer materials, bionanocomposites, cellulose composites, polymer processing and chemistry, insulating foams, and adhesives.

Publications and talks

Habibi, M., Laperrière, L., Mahi, H. H., « Replacing stitching and weaving in natural fiber reinforcement manufacturing, part 1: mechanical behavior of unidirectional flax fiber composites» J. Nat Fib (2018)

Habibi, M., Laperrière, L., Mahi, H. H., « Influence of low-velocity impact on residual tensile properties of nonwoven flax/epoxy composite» J. Compos. Struct (2018).

Mahallati, P., Mahi, H. H., D. Rodrigue., M. Wilhelm « Rheological characterization of thermoplastic elastomers (TPE) based on PP and recycled EPDM» J. Appl. Rheol (2016).

Mahi H. H., A. Alemdar, D. Rodrigue “polypropylene reinforced with nano-crystalline cellulose; coupling agent optimization ˮ J. appl. Polym. sci (2014).

Mahi H. H., M. Wilhelm, D. Rodrigue “A rheological criterion to determine the percolation threshold in polymer nano-composites ˮ Rheol. Acta (2014).

Mahi H. H., D. Rodrigue “Effect of particle size and shape on the reinforcing efficiency of nano-particles in polymer nano-compositesˮ,Macromol. Mater. Eng (2014).

Mahi H. H., M. Abbasi, M. Wilhelm, D. Rodrigue “Validity of the modified molecular stress function theory to predict the rheological properties of polymer nano-compositesˮ, J Rheol. 57, (2013).

Mahi H. H., D. Rodrigue “Effect of nano-particles on flow and recovery of polymer nano-composites in the melt stateˮ, Int. Polym. Proc (2013).

Mahi H. H., D. Rodrigue, “Relationships between linear and non-linear shear response of polymer nanocomposites ˮ, Rheol. Acta 51 (2012).

Mahi H. H., D. Rodrigue, “Linear and non-linear viscoelastic properties of ethylene vinyl acetate/nano-crystalline cellulose compositesˮ, Rheol. Acta (2012).

Mahi H. H., M. Semsarzadeh “Study on Esterified Styrene maleic anhydride synthesizing and its physical and mechanical properties when blended with LLDPEˮ Iran. J. Polym Sci. Technol (2008).

H. Mahi, D. Rodrigue, “rheological percolation in polymer nanocomposites what are the universal phenomena”, SOR 86nd Annual Meeting, California, USA (2014).

H. Mahi, D. Rodrigue, “Effect of Particle Size and Shape on Oscillatory and Transient Shear Rheology of Polymer Nano-Composites”, SOR 85nd Annual Meeting, Montréal, Canada (2013).

H. Mahi, D. Rodrigue, “Rheology, and microstructure in polymer nanocomposites”, Karlsruhe Institute for Technology (KIT), Germany, (2013).

Mahi H. H., D. Rodrigue “Effect of MWNTs on rheological properties of polymer Nano-composites: a comparison between different shapesˮ SOR 84nd Annual Meeting, Pasadena, California, USA (2013).

Mahi H. H., M. Abbasi, M. Wilhelm, D. Rodrigue “Effect of Nano-Particle Geometry on Rheological Properties of Nano-Composites Using SAOS and LAOS Deformationsˮ, the XVIth International Congress on Rheology, Lisbon, Portugal, (2012).

Mahi H. H., D. Rodrigue “Effect of nano-particles on the recovery of polymer nano-composites in the melt stateˮ, PPS regional meeting, Kish Island, Iran, (2012).

Mahi H. H., D. Rodrigue “Effect of nano particle shape on linear and non linear rheological properties of polymer nano compositeˮ SOR 83nd Annual Meeting, Cleveland, Ohio. USA (2011).

Mahi H. H., D. Rodrigue “Rheological properties of ethylene-vinyl acetate and nano-crystallineˮ cellulose composites, SOR 82nd Annual Meeting New mexico, USA. (2010).

Mahi H. H., Semsarzadeh M.A. “Improved biodegradation of LLDPE with esterified styrene maleic anhydride copolymersˮ, ISPT 2007 seminar, Iran, (2007).


Zhang, Y., Mahi, H. H. and J. Deng. « Methods for the manufacturing lignocellulose-thermoplastic composites products ». (submitted to the Canadian Patent, disclosure number:C443) (April 2011).