Yunli Fang, Ph.D
Senior Chemist/Materials Scientist/Rheologist
**** ********* ****, *****, ** 55436, Phone 612-***-****,
acce1y@r.postjobfree.com
Summary
. M.Eng and Ph.D in Polymer Science (Chemical Engineering) and B.Eng. in
Polymer Materials.
. Eight years of work experiences in thermoplastic
polymer/biopolymers/polymer blends/polymer nano-composites/polymer
suspension/coatings/resins characterization, product development,
structure- property relationships and thermoplastic resins processing
with expertise in the following areas:
V Thermal characterization: DSC, TGA, DMA
V Morphology: AFM, XRD, SEM
V Rheology: shear/extensional/dynamic/online viscosity measurement
of polymer, polymer blends, polymer composites and polymer
suspension/gels/coatings
V Thermoplastic processing: extrusion (calendaring, film blowing,
film sheeting, fiber spinning) and injection moulding
V Mechanical characterization: Tensile, DMA, Impact, Tear
V Surface characterization: Tensiometry, Goniometry and
calculation of interfacial tension.
. Extensive product development and scale up experiences in bio-polymer
composites (polymer compounding), nano-crystalline cellulose (NCC)
film production
. Solutions-oriented problem solver with skills in review, analysis,
evaluation, execution, trouble-shooting
. Good documentation skills
. Management and leadership experience through project management: led 10+
projects, supervised 5+ engineering professionals
. Creative, innovative in project implementation and can work
independently and as a team member
. Experience in polymer surface science: surface modification,
measurement of interfacial tension and surface tension
. Computer skills: Microsoft Office (Excel, MSWord and PowerPoint),
professional software: Origin, Sigmaplot and statistical software
(Statistica and Minitab)
Professional Experiences
Senior Chemist/Materials Scientist - Rheologist Aug.
2011 - Jan., 2014
Corporate Lab. Valspar Corporation, Minneapolis, MN, US
Led projects on rheological, thermal and mechanical characterization of
various coatings and resins from different business units (water/solvent
based, powder coatings). Led projects on solubility parameters for the
whole company.
. Led projects and interact with scientists/chemists internally and
externally.
. Defined rheological behaviors (flow/leveling, sag resistance,
recovery) during coating/refinish applications.
. Investigated and modeled curing process using rheology and thermal
dynamics and mechanical characterization during curing/drying of
coatings/refinish and resins from various Business Units. Setup models
to guide formulation R&D.
. Acted as a technical lead in the areas of rheological, thermal and
mechanical analysis, surface analysis (Goniometry, Tensiometry and
adhesion) and Hansen Solubility Parameters and provide analytical and
trouble-shooting services to various Business Units. Wrote internal
project reports. Validated and improved existing characterization
methodology and developed new methods.
. Helped select, purchase and install thermal and rheological devices
(DMA, TGA, DSC and Rheometry).
Research Scientist - Materials Scientist - Rheologist
FPInnovations - Paprican, Pointe Claire, Quebec, Canada
Aug. 2006 - Aug. 2011
. New product development on polymer composites: incorporated wet
natural fiber into thermoplastic polyolefins; nano crystalline
cellulose (NCC) and lignin based biopolymer composites through polymer
extrusion and polymer characterization (rheology, thermal dynamics,
mechanical properties and morphology, permeability).
. Evaluated thermal, rheological properties of NCC gels for NCC film
productions.
. Reviewed, analyzed, evaluated, problem-solved and improved the design and
operation of the pulp and paper processes.
V Led research project on thermal and rheological properties of black
liquor to achieve better combustibility, processability and energy
efficiency.
V Examined the key factors controlling the viscosity of black liquor and
identified an additive that can be used to significantly reduce black
liquor viscosity.
V Evaluated the thermal properties of black liquor during evaporation to
improve the evaporator design and optimize the processing conditions.
. Validated and improved laboratory methods to measure black liquor
viscosity and characterize lignin in black liquor.
. Gave technical presentations at FPInnovations and its Member Company
mills.
. Wrote both internal and external project proposals and reports.
Interact internally and externally with scientists, managers and
professors from our Company, our Member Companies (Pulp and Paper
mills) and Universities for trouble-shooting and project coordination
and project management.
. Helped select, purchase and install thermal and rheological devices
(TGA, DSC and Rheometry).
Research Associate/Post-doc. Fellow
2004 -2006
Research Assistant/Post-graduate student
1997 - 2004
Ecole Polytechnique de Montreal, Montreal, Quebec, Canada
. Evaluated the structure (rheology)-processability-properties of
various thermoplastic polymers (polyethylenes) and their blends.
Identified a universal material parameter governing bubble stability
in different PE families through thermoplastic polymer extrusion and
polymer melt rheology.
. Clarified the role of long chain branching in thermoplastic polymer
blends (linear polypropylene/long chain branch polypropylene)
. Studied the thermal, rheological, morphological and mechanical
properties and processability of various thermoplastic polymers
(polyolefins) and their blends.
. Studied thermoplastic polymer (nylon) based nanocomposites.
. Developed new criteria for determining inline bubble stability during
film extrusion.
. Determined rheological properties (non-uniform biaxial elongational
viscosity) using inline birefringence measurements during film
extrusion.
. Studied miscibility of polymer blends (LDPE/mPE) using thermal (DSC,
DMA), rheological, mechanical, optical tools (AFM, SEM, etc. to study
the morphology) and interfacial tension.
Research & Production Engineer July,
1989 - Sept. 1996
Henan Chemical Engineering Research Institute, Henan, P.R. China,
. Developed Polyurethane Sponge.
. Developed new approaches for utilizing recycled thermoplastic
polystyrene foam.
. Developed and Asphalt Emulsifier for slow-breaking emulsion.
. Developed and applied Agricultural Fertilizer of Chelating Rare Earth.
. Synthesized Plant-growth regulator (Cl2CH2CH2PO3H2).
. Transferred several technologies (commercialization) to different
industries in China.
Education
. Ph.D. Chemical Engineering (Materials Science)
cole Polytechnique de Montr al, Montr al, Qu bec
1999 -2004
. M. Eng. Chemical Engineering (Materials Science)
cole Polytechnique de Montr al, Montr al, Qu bec
1997 - 1999
. B.Eng., Chemical Engineering
Hefei University of Technology, Hefei, Anhui, P.R. China
1985 -1989
Professional Activities
. Scientific Reviewer for Journal of Rheology, Polymer Engineering &
Science, Journal of Plastic Film and Sheeting.
. Scientific Reviewer for of NSERC (Natural Sciences and Engineering
Research Council of Canada) Strategic Project Application.
PUBLICATIONS
"Melting Behaviour, Isothermal and Non-isothermal Crystallization Kinetics
of Nylon 1111" Jiang, Tao; Liu, Minying; Fu, Peng; Wang, Yudong; Fang,
Yunli; Zhao, Qingxiang
Polymer Engineering and Science, 49, 1366 (2009).
"Properties of Blends of Linear and Branched Polypropylenes in Film
Blowing" Fang, Yunli; Sadeghi, Farhad; Fleuret, Guillaume and Carreau,
Pierre J., Canadian Journal of Chemical Engineering 86, 6 (2008).
"Thermal and Rheological Properties of mPE/LDPE Blends" Fang, Yunli;
Carreau, Pierre J.; Lafleur, Pierre G. Polymer Engineer & Science, 45, 1254
(2005).
"Properties of mPE/LDPE Blends in Film Blowing" Fang, Yunli; Carreau,
Pierre J.; Lafleur, Pierre G.; Ymmel, Salah; Polymer Engineer & Science.
45, 343 (2005).
"Dynamics and Criteria for Bubble Instabilities in a Single Layer Film
Blowing Extrusion." Kim, Seungoh; Fang, Yunli; Lafleur, Pierre G.; Carreau,
Pierre J. Polymer Engineer & Science. 44, 283 (2004).
"Rheological Effects of Polyethylenes in Film Blowing." Fang, Yunli;
Carreau, Pierre J.; Lafleur, Pierre G. Polymer Engineering & Science. 43,
1391 (2003).
PATENT AND CONCEPT DISCLOSURE
A new process to incorporate wet natural fiber and starch into
thermoplastics (alternative name:
A new process for fiber-TPS-polymer blends) patent pending (2012)
Preparation of starch-polymer blends incorporating nanocrystalline
cellulose (NCC) (2010)