chemical polymer engineer

Elvan Birinci Ozdemir E-mail: ************@*****.***

*** *********** ** **************, ** Phone: 718-***-****

OBJECTIVE: To obtain a full-time position using technical background and experience

EDUCATION: Stevens Institute of Technology, Hoboken, New Jersey

Masters of Engineering in Chemical Engineering, June 2000 Minor: Polymer Engineering

Stevens Institute of Technology, Hoboken, New Jersey

Masters of Engineering in Telecommunication, June 2003, (not completed)

Istanbul Technical University, Istanbul, Turkey.

Bachelors of Science in Chemistry, May 1992

SKILLS: Laboratory Skills: Twin-Screw Extrusion, Haake Torque Rheometer, Ares Oscillatory Shear Rheometer, Instron Capillary and Slit Rheometer, Squeeze Flow Rheometer, Thermo gravimetric Analysis, Instron Tensile testing machine, Differential Scanning Calorimeter, compression molding machine, Scanning Electron Microscope, Rigaku X-ray diffraction.

Software: Excellent knowledge of Microsoft Word , PowerPoint Access , Excel , data acquisition, FrontPage 97/98, Adobe Photoshop 5.0, N.I.H, Cerius2, SQL 6.5, Visual Basic 5,6, GW Basic, C++, Java

THESIS: Characterization of the Degree of Mixedness of Conductive Composites and Correlations with Ultimate

Properties

• Exploiting percolation-range microstructure for conductive composites

• Characterize effects of the specific energy input during mixing

• Degree of mixedness on the rheological behavior of concentrated suspensions

• Electrical Conductivity of a Graphite based Composite

UNDER GRADUATE

THESIS: Fabric color of black.

• Synthesized black fabric color.

EXPERIENCE:

7/2010-2/2011 Lite Tech Inc.

Product/Process development engineer

Product: X-Ray protection apron

*Compounding Thermoplastic Elastomer ( EVA, PE, EPDM) with heavy metal particles.

*Single screw extrusion with coat hanger die. Extrude Thermoplastic elastomer sheet

* Polymer laminating with similar polymer, or with film

*Improved and developed new products and formulation for X-ray protection aprons

1/2000-01/2007 Stevens Institute of Technology, Highly Filled Materials Institute, Hoboken, NJ

Research Engineer

* Main work has been done in the development and implementation of numerical and equation-based models for laminar and non-Newtonian flow. Focus on complex fluids and chemical process modeling and structural mechanics problems for complex mechanical problems, fluid dynamics, heat transfer calculations for non- Newtonian fluids.

*All extrusion work has been done in, screw design, die design, powder feeding, feeding order.

*The rheological properties of an extrudable highly filled materials are investigated by ram extrusion apparatus ( capillary Rheometer). Using capillary Rheometer, material is mathematically modeled . In these modeling, Rabinowitz (slip) correction was done and Hershel Bulkley model was fited. By the experimental results, measurements of the die pressure is necessary to obtain a realistic viscosity vs shear rate curve, as required in extrusion technology.

* Manage Rheology lab and supervise graduate students

* Extrusion was done on hydroxyapatite with PVA. This extudate was used for heart valve . (Project for National Research Council)

* Determine the feasibility of the twin screw extrusion of PVA hydrogels and assess the effects of the twin screw extrusion process on the dynamic properties of the hydrogel. (project for National Research Council)

* Rheological characterization was done on hydroxyapatite with PVA(polyvinyl alcohol) (water soluble polymer), which crosslinked by freeze/thaw cycling using oscillatory shear rheometer. (Project for National Research Council)

* Twin screw extrusion was done for conductive paste with curing agent. Also rheological characterization was done to see difference between different formulation and how affect the sample and calculate the curing time using tandelta function (project for Dexter).

* Material characterization on polyethylene, Polyvinyl alcohol, Teflon, Polydimethylsiloxane (PDMS), Conductive polymer, Carboxymethyl cellulose (water soluble polymer), Biodegradable polymers (PLLA), Linear alkylbenzene sulfonates using TGA, DSC, X-ray, SEM, capillary and Ares rheometer.

* Rheological characterization was done on every screw section for detergent paste extrusion ( feeding, mixing, pumping) to observe where the material change its morphology (MLV) with different screw configuration. (excellent understanding of the processing conditions of extrusion and how processing conditions affect the physical, mechanical, thermal, and optical properties of materials). The time dependent torque response was also obtained (project for P&G)

* Calculate degree of mixedness using statistical analysis (e.g., least squares plot, standard deviation, coefficient of variation) with modified Microsoft excel using visual basic. Determined particle size distribution of fillers by SEM images, N.I.H. software and excel spread sheet

* Thermal paste which consist of Al and alumina particles subjected to a number of processes and conditions to determine goodness of the mixing using x-ray and its effects on the flow and deformation. The characterization of the dynamic properties under small amplitude oscillatory shear flow and steady flow behavior using steady torsional flow experiments were carried out using an ARES rotational Rheometer. (project for IBM)

* Rheological characterization and twin screw extrusion was done on hydrogels (PVA) and their suspensions with Alumina nanoparticles. Rheological characterization involves the steady torsional flow in between two disks and small amplitude oscillatory shear. The effects of wall slip on the development of particle and binder migration during viscometric flows of concentrated suspensions have been investigated

* Characterization of Teflon under pressure using SEM microscope. With Capillary rheometer using different dies calculate shear viscosity, shear stress and slip velocity to do Rabinowitsch correction for Teflon and Carbon mixed battery paste. PTFE extrusion. Calculate extrudate swell, which is related to the memory and elasticity of the material.(project for Duracell).

* Rheological characterization on new soap formulation was done using capillary rheometer and ARES rotational rheometer . with these data also slip correction was done. The activation energy values were calculated ( project for Lever )

* Recharacterize new soap formulation to determine if there are changes in rheological behavior which occur upon the aging of the soap formulation . ( project for Lever )

1/1997-12/1999 Stevens Institute of Technology, Highly Filled Materials Institute, Hoboken, NJ

Research Assistant

* The development of flow instabilities and the associated surface and bulk irregularities during the extrusion of a poly(dimethyl siloxane) melt and its suspensions with spherical hollow glass particles were investigated using both capillary and rectangular slit flows

* Extrusion Instabilities and Surface Irregularities of Extrudates of Polymer Melts (poly(dimethylsiloxane) (PDMS)) and Filled (glass spheres) Polymers

* Statistics of Mixing Distributions in Filled Elastomers (HyTemp [crosslinked (butryl and ethyl)acrylic acid ester] elastomer filled with AP, Graphite) Processed by Twin Screw Extrusion. ( project for US Army)

* The development of the electrical properties of composite (Kraton with graphite) as a function of the degree of mixedness of a conductive filler distributed into an insulating polymer is investigated. A wide-angle X-ray diffraction (WAXD)-based quantitative phase analysis method was used to characterize the variations of the concentrations of the insulating binder and the conductive particles around their mean values as a function of mixing time in an intensive batch mixer of mixing time in an intensive batch mixer.

* The development of flow instabilities and the associated surface and bulk irregularities during the extrusion of a poly(dimethyl siloxane) melt and its suspensions with spherical hollow glass particles were investigated using both capillary and rectangular slit flows.

* Run Cerius2 for molecular design , bonding , new crystal structure, molecular interactions.

* Performed compounding of a wide range of composite samples, and elastomers utilizing batch mixers.

* Material characterization using, TGA, DSC, X-ray, Rheometers

* Characterize slip behavior of filled elastomers using Ares , Instron capillary rheometer, high speed camera, thermal image camera. Calculate slip velocity with high speed camera.

* Co-extrude two different materials using the Instron Slit Rheometer

* Provide periodic maintenance of laboratory equipment.

Materials: Soap/Lever and P&G, IBM paste, Exxon, Elastomers/Army binder for explosives, Teflon/Duracell used for the cathode battery, PE, Ink/Master Bond, CMC, PVA (hydrogels), water soluble polymers, Hydroxyapatite, Peanut butter, thermoplastics, carbon black composites, Dexter paste.

6/1992-1/1993 Poliya Polyester Industry and Trade Ltd. Co., Istanbul, Turkey

Chemist: Synthesized unsaturated polyester compounds for bathtub, kitchen countertop, and other product applications and involved in quality control of new products for heat and water stability, acid resistance, color fastness, and shrinkage

5/1990-8/1990 Unilever Inc. (Lever), Research & Development, Turkey

Summer Intern: Participated in the quality control of personal care products including Elidor shampoo and Lux bar soaps. Techniques utilized included Ultra-Violet and Atomic Absorption, pH measurements, and viscometry.

AWARDS: Research Assistantship, Highly Filled Materials Institute 1/97-12/99

Certification: AMTEC Co. Safety and Training Division in New Jersey

PUBLICATIONS:

• H. Gevgilili, D. Kalyon. E. Birinci, M. Malik, L. Goovaerts, R. Bacon and P. Mort “Dynamic assembly of anionic surfactant into highly-ordered vesicles” Journal of Colloid And Interface Science

• D. M. Kalyon, D. Dalwadi, M. Erol, E. Birinci and C. Tsenoglu “Rheological Behavior of Concentrated Suspensions as affected by the Dynamics of the Mixing Process”, Rheologica Acta, 45, 641-658 (2006)

• Elvan Birinci and Dilhan M. Kalyon, “Development of extrudate distortions in poly (dimethyl siloxane) and its suspensions with rigid particles” Journal of Rheology -- ay/June 2006 - Volume 50, Issue 3, pp. 313-326

• N. Degirmenbasi, D. M. Kalyon and E. Birinci, “Biocomposites of Nanohydroxyapatite with Collagen and Poly(vinyl alcohol)”, Colloids and Surfaces B Biointerfaces, 48, 42- 49 (2006).

• E. Birinci, H. Gevgilili, D. Kalyon, B. Greenberg, D. Fair and A. Perich, “Rheological characterization of nitrocellulose gels”, Journal of Energetic Materials, 24, 247-269 (2006).

• Dilhan M. Kalyon, Elvan Birinci and David Fair, “Rheological characterization of NC gels and development of processing simulants” Annual Meeting of American Institute of Chemical Engineers Annual Meeting,(2005).

• Dilhan M. Kalyon, Hansong Tang and Elvan Birinci “Development of flow instabilities during the extrusion of energetic materials: Mathematical Analysis and Experimental Results”, Annual Meeting of American Institute of Chemical Engineers Annual Meeting,(2005).

• D. Kalyon, D. Dalwadi, M. Erol, E. Birinci and C. Tsenoglu “Rheological Behavior of Concentrated Suspensions as Affected by the Dynamics of the Mixing Process,” Rheological Acta, On-line, 1435 (2005).

• D. Kalyon, E. Birinci and H. Gevgilili, “Development of the flow instabilities of polymers and filled polymers”, to be submitted to J. Rheology (2004)

• Dilhan M. Kalyon, Halil Gevgilili, E. Birinci, Hansong Tang "Novel rheological characterization platforms for the extrudability and safety analysis of energetic materials "Joint Ordinance Commanders Group (JOCG) Continuous Mixer & Extruder Users Group (CMEUG) 13-14 October 2004

• S. Prickett, C. Murphy, C. Gonzalez, W.Thomas, D. Kalyon, E. Birinci and H. Gevgilili, "Shear Viscosity, Extrudate Swell and Wall Slip Behavior of a Double Base Propellant", Proceedings of JANNAF 31st, Propellant Development and Characterization Meeting, 25-27 March, 2003, Charlottsville, VA, (2003).

• Kalyon D., E. Birinci and H. Gevgilili, “Development of extrudate distortions as affected by wall slip behavior of polymers and filled polymers”, Proceedings of Annual Meeting of American Institute of Chemical Engineers Annual Meeting, (2003).

• D. Kalyon, E. Birinci and H. Gevgilili, “Development of Extrusion Instabilities and Surface Irregularities of Extrudates of Polymer Melts and Filled Polymers,” AIChE 2003 Annual Meeting Conference Proceedings CD-ROM AIChE -831, Paper #59c (2003).

• D.M.Kalyon and E.Birinci, "Electrical Conductivity of a Graphite based Composite as affected by the degree of mixedness of Graphite in the Elastomeric Matrix", Society of Plastics Engineers ANTEC Technical Papers, Vol. 2, 1716-1720, (2002).

• D.M.Kalyon, E.Birinci, R.Yazici, B.Karuv, and S.Walsh, "Electrical Properties of Composites as Affected by the Degree of Mixedness of the Conductive Filler in the Polymer Matrix", Polymer Engineering & Science, Vol. 42, 1609-1617, (2002).

• Dilhan M. Kalyon, Elvan Birinci, and Halil Gevgilili, “Development of extrusion instabilities for filled polymers” Society of Rheology 74th Annual meeting (2002)

• Christos Tsenoglou, Dilhan M. Kalyon, and Elvan Birinci “Effects of the specific energy input during mixing and the resulting degree of mixedness on the rheological behavior of concentrated suspensions” Society of Rheology 74th Annual meeting (2002), speaker Elvan Birinci

• R. Yazici, B. Karuv, E. Birinci and D. M. Kalyon, "Particulate based conductive composites exploiting percolation-range microstructure", SPE ANTEC Technical Papers, Vol. 45, 1551-1555, (1999).

• M. Rege, S. Kovenklioglu, R. Yazici, D. M. Kalyon and E. Birinci, "Elastomeric coating of filler powders by slurry precipitation", SPE ANTEC Technical Papers, Vol. 45, 3489-3494, (1999).

• E.Birinci, R.Yazici, D.M.Kalyon, M.Michienzi, C.Murphy and R.Muscato, "Statistics of Mixing Distributions in Filled Elastomers Processed by Twin Screw Extrusion", SPE ANTEC Technical Papers, Vol. 45, (1999).

PERSONAL: US Permanent Resident

REFERENCES AVAILABLE ON REQUEST

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