Personal Details

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Dr. LEONG Yew Wei

Senior Scientist I/ Head, Industry Development Office

Staff

Industry Development Office

64168911

leongyw@imre.a-star.edu.sg

2 Fusionopolis Way. Innovis, #08-03, Singapore 138634


Research Details


  • Advanced composite materials design, fabrication and characterization
  • Polymer blends and nanocomposites
  • Natural fiber and green composites
  • Up-cycling of plastics
  • Failure analysis and fracture mechanics
  • Flow simulation and modeling for thermoplastics
  • Thermoplastic composite processing - extrusion, injection molding, compression molding
  • Thermoset composite processing - RTM, VaRTM, hand lay-up
  • Thermal property characterization - DMA, DSC, TGA
  • Rheology - Parallel plate and capillary rheometer
  • Morphology - SEM, FTIR, Raman spectroscopy, AFM
  • Development of high performance PLA-based materials and applications
  • Application of Nanocomposites In Continuous (Glass and Carbon) Fiber Reinforced Polymer (CRFP) For Wind Turbine Structures
  • PP/Nylon-Clay-Glass Fiber Ternary Composites and its Application in Flexible Composite Risers
  • Smart Multifunctional Coatings for Fenestrattion to Reduce Thermal Load of Buildings
  • Use of Laser for Composite Material Removal for Composite Repair
  • Development of Silicone Rubber Nanocomposites with High Electrical Conductivity
  • Sep 2013 - Present: Scientist III, Materials Centre of Innovation, Institute of Materials Research and Engineering (Singapore)
  • Dec 2010 - August 2013: Scientist II, Institute of Materials Research and Engineering (Singapore)
  • Oct 2007 - Sep 2010: Assistant Professor, Kyoto Institute of Technology (Japan)
  • Oct 2006 - Sep 2007: Postdoctoral Fellow, Kyoto Institute of Technology (Japan)
  • Ph.D. (Advanced Fibro Science), Kyoto Institute of Technology, Japan, 2006
  • M.Sc. (Polymer Technology), Universiti Sains Malaysia, Malaysia, 2003
  • B. Eng. (Hons) Materials Engineering, Universiti Sains Malaysia, Malaysia, 2001

  • Awarded (2nd Prize) at the Makethon 2014, Singapore University of Technology and Design.
  • Nominated best PhD thesis, (top 5 international finalist), Quadrant Award, Quadrant A.G., Zurich, Switzerland (2007).
  • Awarded 2005, a scholarship under the Research Grants for Doctoral Candidates and Young Academics and Scientists category by the Deutscher Akademischer Austauschdienst (DAAD) to undergo a short-term research project at the Technical University of Kaiserslautern, Germany from August to October 2005.
  • Awarded 2004, the Monbukagakusho Scholarship – one of the most prestigious scholarships offered by the Japan Ministry of Science and Education for pursuing the Ph.D. degree.

Books

  • Y. W. Leong & H. Hamada. Introduction to Film Insert Injection Molding: A Practical & Theoretical Approach. Lambert Academic Publishing (2010).
  • Y. W. Leong & Z. A. Mohd. Ishak. Talc and Calcium Carbonate-Filled Polypropylene Hybrid Composites: Mechanical, Thermal and Weathering Properties. Lambert Academic Publishing (2009).

 

 

International Refereed Journals
  • M. SHARMA, S. WANG, Y.W. LEONG. Wear resistance properties of Nylon-SiC hybrids composites; Advanced Materials Research, 1110 (2015) 88-91
  • S. WANG, M. SHARMA, Y.W. LEONG. Polyamide 11/layered silicate nanocomposite using polyhedral oligomeric silsesquioxane surfactants; Advanced Materials Research,1110 (2015) 65-68
  • M. SHARMA, Y.W. LEONG, E. Mäder, S. Gao, H. Sharma, J. Bijwe; Carbon fiber surfaces and composite interphases; Composites Science and Technology, 102 (2014) 35-50
  • R. Zhou, P.K. PALLATHADKA, C.B. HE, Y.W. LEONG, X. Lu, W. Liu, D. Zhou, G. Ding. Electrospun poly(vinylidene fluoride) copolymer/ octahydroxy-POSS nanofibrous mats as ionic liquid host: enhanced lithium salt dissociation and its function in electrochromic device; ELECTROCHIMICA ACTA, 146 (2015) 224-230
  • R. Zhou, P.K. PALLATHADKA, Y.W. LEONG, X. Lu, W. Liu, J. Kong, D. Zhou, G. Ding. Chemically cross-linked ultrathin electrospun poly(vinylidene fluoride-co-hexafluoropropylene) nanofibrous mats as ionic liquid host in electrochromic devices; Polymer, 55 (2014) 1520-1526 
  • B.H. Tan, H. Hussain, Y.W. Leong, T.T. Lin, W.W. Tjiu, C.B. He. Tuning Self-Assembly of Hybrid PLA-P(MA-POSS) block Copolymers in Solution via Stereocomplexation. Polymer Chemistry, 4(4), 1250 - 1259 (2012).
  • Pin Lu, Y. W. Leong, P. K. Pallathadka, C. B. He. Effective moduli of nanoparticle reinforced composites considering interphase effect by extended double-inclusion model – theory and explicit expressions. International Journal of Engineering Science, 73 (2013) 33–55.
  • Rui Zhou, Wanshuang Liu, Junhua Kong, Dan Zhou, Guoqiang Ding, Yew Wei Leong, Xuehong Lu. Chemically Cross-Linked Ultrathin Electrospun Poly(vinylidene fluoride) Nanofibrous Mats as Ionic Liquid Host in Electrochromic Devices. Journal of Physical Chemistry B, Submitted.
  • M. Ogasahara, M. Shidou, S. Nagata, K. Yamada, Y. W. Leong and H. Hamada. Effectiveness of High Frequency Heating on Drying and Intrinsic Viscosity Enhancement of Recycled Poly(ethylene Terephthalate). Journal of Applied Polymer Science, accepted.
  • H. Inoya, Y. W. Leong, W. Klinklai, S. Thumsorn, Y. Makata, and Hiroyuki Hamada. Compatibilization of Recycled Poly(ethylene terephthalate) and Polypropylene Blends: Effect of PP Molecular Weight on Homogeneity and Compatibility. Journal of Applied Polymer Science, accepted.
  • K. Nodo, Y. W. Leong and H. Hamada. Effect of Knitted and Woven Textile Structures on the Mechanical Performance of Poly(lactic acid) Textile Insert Injection-Compression Moldings, Journal of Applied Polymer Science, accepted.
  • N. Kunimune, K. Yamada, Y. W. Leong, S. Thumsorn, and H. Hamada. Influence of Reactive Processing of Recycled Poly(Ethylene Terephthalate) /Poly(ethylene-co-Grycidyl Methacrylate) Blends, Journal of Applied Polymer Science, accepted.
  • B. C. Ogazi-Onyemaechi*, Y. W. Leong, A. Nakai, M. Kotaki and H. Hamada. Effects of Molecular Weight of Polypropylene on the Correlation between Fracture Toughness and Mechanical/Impact properties of GFPP Composites. Polymers and Polymer Composites,17, 529-540 (2009).
  • B. C. Ogazi-Onyemaechi, Y. W. Leong, and H. Hamada. Effects of Hairline Cracks on the Fracture Behavior of Polyethylene Terephthalate Injection Moldings. Polymer Journal, 42, 887-895 (2010).
  • B. C. Ogazi-Onyemaechi, Y. W. Leong, and H. Hamada. Dependence of Crack-Tip Temperature on Stress Intensity and Notch-Sensitivity of Polyethylene Terephthalate. Polymer Journal, 42, 592-599 (2010).
  • B. C. Ogazi-Onyemaechi, Y. W. Leong, H. Hamada. Crack Propagation Behavior and Toughness of V-Notched Poly(ethylene terephthalate) Injection Moldings. Journal of Applied Polymer Science, 116, 132-141 (2009).
  • T. Ohta, Y. Takai, Y. W. Leong, and H. Hamada. Mechanical Properties of Injection-Molded Jute/Glass Fiber Hybrid Composites. Polymers and Polymer Composites, in press (2009)
  • H. Inoya, Y. W. Leong, W. Klinklai, Y. Takai, and H. Hamada. Compatibilization of Recycled Poly(ethylene terephthalate) and Polypropylene Blends: Effect of Compatibilization on Blend Toughness, Dispersion of Minor Phase, and Thermal Stability. Journal of Applied Polymer Science, in press (2009)
  • Y. W. Leong and H. Hamada. Interfacial Characteristics of Film Insert Moldings Consisting of Semicrystalline and Amorphous Polymers. International Polymer Processing, 23, 183-191 (2008).
  • N. O-Charoen, Y. W. Leong, and H. Hamada. Determination of Different Morphological Structures in PC/ABS Open Spiral Injection Moldings. Polymer Engineering & Science, 48, 786-794 (2008).
  • M.B. Abu Bakar, Y. W. Leong, A. Ariffin, Z.A. Mohd. Ishak. Effect of Chemical Treatments on the Mechanical, Flow and Morphological Properties of Talc and Kaolin Filled Polypropylene Hybrid Composites. Journal of Applied Polymer Science, 110, 2770-2779 (2008).
  • M. Mizoguchi, T. Umemura, S. Takasima, S. Otsuki, B. Yang, T. Kuriyama, Y. W. Leong, and H. Hamada. Internal Structure and Mechanical Properties of Glass Fibre Reinforced PC/ABS Injection Mouldings with Different Fibre Surface Treatments. Polymers and Polymer Composites, 16, 27-33 (2008).
  • Y. W. Leong, T. Umemura, and H. Hamada. Film Insert Molding as a Novel Weld-Line Inhibition and Strengthening Technique. Polymer Engineering & Science, 48, 2147-2158 (2008).
  • S. Solomon, A. Abu Bakar, Z. A. Mohd Ishak, Y. W. Leong, U. S. Ishiaku, and H. Hamada. Drop Weight Impact Properties of (Co)Injection Molded Short Glass Fiber/Short Carbon Fiber/Polyamide 6 Hybrid Composites. Journal of Reinforced Plastics and Composites, 26, 405-418 (2007).
  • M. B. Abu Bakar, Y. W. Leong, A. Ariffin, and Z. A. Mohd. Ishak. Mechanical, Flow and Morphological Properties of Talc- and Kaolin-Filled Polypropylene Hybrid Composites. Journal of Applied Polymer Science, 104, 434-441 (2007).
  • Y. W. Leong, M. Kotaki, and H. Hamada. Effects of Molecular Orientation and Crystallization on the Film-Substrate Interfacial Adhesion in Poly(ethylene Terephthalate) Film Insert Moldings. Journal of Applied Polymer Science, 104, 2100-2107 (2007).
  • Z. A. Mohd Ishak, Y. W. Leong, M. Steeg, and J. Karger-Kocsis. Mechanical properties of woven glass fabric reinforced in-situ polymerized poly(butylene terephthalate) composites. Composites Science and Technology, 67, 390-398 (2007).
  • U.S. Ishiaku, X. Y. Yang, Y. W. Leong, H. Hamada, T. Semba and K. Kitagawa. The Effects of Fiber Content and Alkali Treatment on the Mechanical and Morphological Properties of PLA/PCL Blend Jute Fiber Filled Biodegradable Composites. Journal of Biobased Materials and Bioenergy, 1, 78-86 (2007).
  • Y. W. Leong, S. Yamaguchi, U. S. Ishiaku, M. Kotaki, and H. Hamada. Interfacial Characteristics of Film Insert Molded Polycarbonate Film/Polycarbonate-Acrylonitrile-Butadiene-Styrene Substrate: Part 1 - Influence of Substrate Molecular Weight and Film Thickness. Polymer Engineering & Science, 46, 1674-1683 (2006).
  • T. Tsujii, Y. U.S. Ishiaku, M. Mizoguchi, Y. W. Leong and H. Hamada. Effect of Heat-Sealing Temperature on the Properties of OPP/CPP Heat Seals. Part II. Crystallinity and Thermomechanical Properties. Journal of Applied Polymer Science, 99, 513-519 (2006).
  • Y. W. Leong, M. B. Abu Bakar, Z. A. Mohd. Ishak, A. Ariffin. Filler Treatment Effects on the Weathering of Talc, CaCO3 and Kaolin Filled Polypropylene Hybrid Composites. Composite Interfaces (Special Issue), 13, 659-684 (2006).
  • Y. U. S. Ishiaku, Y. W. Leong, H. Hamada, T. Tsujii. Effect of Heat-Sealing Temperature on the Failure Criteria of Oriented Polypropylene/Cast Polypropylene Heat Seal. Polymer Engineering & Science, 46, 205-214 (2005).
  • S. Yamaguchi, Y. W. Leong, M. Mizoguchi, H. Hamada, U. S. Ishiaku & T. Tsujii. Crystallization and Interface Formation Mechanism on Mechanical Properties in PP Film Inserted PP Injection Molding. Journal of Applied Polymer Science, 98, 294-301 (2005).
  • Y. W. Leong, M. B. Abu Bakar, Z. A. Mohd. Ishak & A. Ariffin. Effects of Filler Treatments on Mechanical, Flow, Thermal and Morphological Properties of Talc and Calcium Carbonate Filled Polypropylene Hybrid Composites. Journal of Applied Polymer Science, 98, 413-426 (2005).
  • Y. W. Leong, S. Yamaguchi, M. Mizoguchi, H. Hamada, U. S. Ishiaku & T. Tsujii. The Effect of Molding Conditions on Mechanical and Morphological Properties at the Interface of Film Insert Injection Molded Polypropylene-Film/Polypropylene Matrix. Polymer Engineering & Science, 44, 2327-2334 (2004).
  • Y. W. Leong, Z. A. Mohd. Ishak & A. Ariffin. Mechanical and Thermal Properties of Talc and Calcium Carbonate Filled Polypropylene Hybrid Composites. Journal of Applied Polymer Science, 91, 3327-3336 (2004).
  • Y. W. Leong, M. B. Abu Bakar, Z. A. Mohd. Ishak, A. Ariffin & B. Pukanszky. Comparison of Mechanical Properties and Interfacial Interaction Between Talc, Kaolin and Calcium Carbonate Filled Polypropylene Composites. Journal of Applied Polymer Science, 91, 3315-3326 (2004).
  • Y. W. Leong, M. B. Abu Bakar, Z. A. Mohd. Ishak & A. Ariffin. Characterization of Talc/Calcium Carbonate Filled Polypropylene Hybrid Composites Weathered In A Natural Environment. Polymer Degradation & Stability, 83, 411 (2004).
 
  • SG Patent Application No. 10201504945S: New modified nanoclay materials and nanocomposites made therefrom
  • SG Patent Application No. 10201405289X: A Composite Foam Laminate and Its Usage
  • SG Patent Application No. 201300867-7: Hybrid Polymers
  • SG Patent Application No.(To be allocated): Dark-colored and near infrared reflective coatings for aluminum substrates
  • SG Patent Application 10201501232P: Stretchable and Breathable Pre-preg Laminate Composite


Last updated on : 01 Nov 2018 08:48 AM