Yoon Joonsung

Senior Research Scientist at AXEL Plastics, Inc.
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US

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Experience

    • Senior Research Scientist
      • Dec 2011 - Present

      Products development for mold releases and processing aid additives • Developed solvent-based silicone coating products - XTEND 1110EP for epoxy: best in the market (ease of release, longevity of coating) - XTEND 838(release)/AMS(sealer) for vinyl ester: Axel’s best-selling (>10 drums/month) • Developed water-based silicone coating products - XTEND W-4008 for polyolefin (rotational molding): low cost, easy releasing coating • Developed internal processing aid products: new applications / markets to expand business - epoxy pultrusion (INT-1324B) / PU pultrusion (INT-1960MCH) / clear PC (INT-33LSE) / optical PMMA (INT-AM2692B) Show less

    • Education
    • Postdoctoral Research Associate
      • Nov 2009 - Nov 2011

      Model polyamide thin film RO membranes for structure-property study • Developed spin-assisted molecular layer-by-layer deposition process to fabricate polyamide thin films with tunable thickness, surface roughness and surface chemistry. • Demonstrated that surface chemistry can be controlled by the last reaction step (m-phenylene diamine or trimesoyl chloride): amine-rich (basic) or carboxylic acid-rich (acidic) Self-healing coating systems • Developed a new class of elastomers with widely tunable thermo-mechanical properties using binary mixtures of a polar polymer and a high-melting ionic liquid. • Demonstrated that small surface scratches can be healed by mild heating through thermal flow of the coating layer. Show less

    • United States
    • Higher Education
    • 700 & Above Employee
    • Graduate Research Assistant
      • Sep 2004 - Oct 2009

      Locally anisotropic polymer membranes • Demonstrated that mixtures of high melting crystallizable diluents and compatible polymers can develop unique anisotropic microstructures. Constructed theoretical phase diagrams for thermodynamic interpretation of the process. Self-reinforcing polymer composites • Demonstrated simultaneous enhancement in processability and toughness of novel polymer composites using organic molecular crystals as dual functionality additives. Locally anisotropic polymer membranes • Demonstrated that mixtures of high melting crystallizable diluents and compatible polymers can develop unique anisotropic microstructures. Constructed theoretical phase diagrams for thermodynamic interpretation of the process. Self-reinforcing polymer composites • Demonstrated simultaneous enhancement in processability and toughness of novel polymer composites using organic molecular crystals as dual functionality additives.

    • South Korea
    • Oil and Gas
    • 700 & Above Employee
    • Senior Research Engineer
      • Jan 1992 - Aug 2004

      Polyolefin products development • Polymerization process optimization of high impact propylene copolymers (polymer synthesis) • Low-blush heterophasic propylene copolymers (polymer blend technology) • High melt strength propylene homopolymers (controlled molecular architecture for PP films) • Polymer composites (compounding technology for particle-toughened polyolefins) Customer support • Computer-aided engineering support to assist commercial mold development (MoldFlow). • Troubleshooting and process optimization for injection molding and film extrusion. Show less

Education

  • University of Massachusetts, Amherst
    PhD, Polymer Science and Engineering
    2004 - 2009
  • Seoul National University
    MS, Chemical Engineering
    1990 - 1992
  • Seoul National University
    BS, Chemical Engineering
    1986 - 1990

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