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Educational programs 70 undergraduate students 25 graduate students Several post-docs 8 faculty members
B.Sc., M.Sc., M.E. and Ph.D. Strong foreign exchange programs
www.eng.auburn.edu/pfen
Key laboratories
• Polymer synthesis and chemistry labs • Polymer manufacturing and coatings • Polymer Characterization and analysis • Composite manufacturing • Composite mechanical and thermal evaluation • Physical testing of fibers and tows • Optical microscopy and Atomic Force microscopy
Analytical, testing and manufacturing capabilities
A full array of analytical testing facilities for fibers, polymers and composites
Faculty research interests Name Research interests Maria Auad Transparent polymer networks, shape
memory polymers, nanocomposites Sabit Adanur Polymer processing and composites,
engineered fibrous structures, CAD Gisela Buschle-Diller Natural polymers, dyes and pigments Edward Davis Coatings, melt processing, nanocomposites Yasser Gowayed Modeling, testing and manufacture of
polymer and ceramic composites Peter Schwartz Department head, polymer composites Gwen Thomas Protective materials Xinyu Zhang Nano-materials, conducting polymers
FABRIC DESIGN AND ANALYSIS SYSTEM IN 3D VIRTUAL REALITY
To develop a powerful and easy-to-use computer application programs for designing 2D and 3D fabric structures and predicting their mechanical properties and performance in 3D shape applications.
Sabit Adanur
COATED AND LAMINATED FABRICS and MEMBRANES FOR FUEL CELLS
• coating and laminating needs of membrane-based fuel cell components
• to increase efficiency, reduce cost and further develop and optimize the substrates, Recipes and process technology
Sabit Adanur
NANOPARTICLE REINFORCED HYBRID FIBERS AND FILMS
To develop polymeric materials with nanoparticles (e.g. carbon nanotubes and nanoclays) to engineer new hybrid polymeric parts and micro/nano fiber/film properties for nontraditional industries such as fuel cells, electronics, using injection molding, extrusion and electrospinning processes.
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Tens
ile s
tress
(MPa
)
Tensile strain (mm/mm)
F1PP/F1
F2
PP/F2
PP
Improving Toughness of polypropylene With Thermoplastic Elastomers in Injection Molding
Sabit Adanur
Transparent polymer networks for tough windshields
Protective enclosures Canopy / Wind shield/ Body Armor Helmet / visor
Impact-resistant lightweight transparent materials are in demand for use in automotive applications
Develop novel optically transparent Interpenetrating Polymer Networks (t-IPN) to enhance optical, mechanical, thermal and chemical performance of currently fielded materials used for transparent protection.
Maria Auad
Shape Memory Polymers (SMPs).
Shape memory polymers are smart materials capable of “remembering” their original shape after they are deformed. Thus, under appropriate conditions (usually thermal stimulus), they can be made to recover their original shape almost completely. These polymers find applications in a broad range of temperature sensing elements and biomedical systems.
The aim of this project is to tailor the chemistry of shape memory polymers and to create new ways to generate the stimulus-responsive expression of these materials (UV and magnetic activation).
SMPs synthesized at Auburn University. Recovery temp. 50°C.
Maria L. Auad Polymer & Fiber Engineering NASA EPSCoR
Auad et al, 2006, 2008, 2010, 2011
The aim of this study is to show the effect of nanotubes/epoxy systems on the damping capacity of the material in an extended temperature range.
The damping capacity opens important practical applications, as light-weight and robust damping components that can be integrated into the heterogeneous composite structures.
Damping behavior in Carbon Nanotubes/epoxy Elastomers
Noise reduction and attenuation of vibration have become important technological issues associated to the application of structures and machines. The demand of materials with high structural damping capacity is growing in a variety of sectors : aerospace, transport, construction and machinery.
Maria L. Auad Polymer & Fiber Engineering
Auad et al, 2006, 2009, 2009, 2010
Green polymeric materials for composites or other applications
Lowering the eco footprint by replacing conventional polymers from petroleum with polymers from renewable resources, such as biomass
Biodegradable resins made from biopolymers (e.g., PLA from biomass)
Reinforcing strong natural fibers (e.g., flax, sisal, ramie) or recycled fibrous materials
Green processing with non-toxic solvents and lowered energy needs
Reduced use of toxic chemicals from fossil fuels
and reduced emission of greenhouse gases Green chemistry for coloration
Gisela Buschle-Diller
Ultrafine electrospun biopolymers as matrix
Micrograph of flax fibers
Materials for biomedical applications
Responsive reinforced hydrogels that keep their shape even at high swelling ratio
Interpenetrating crosslinked networks of biopolymers for controlled release of active compound
Nano-crystalline cellulose as anchors for active compounds and for grafting
Release at at 37°C pH 7.4
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Time(min)
Cum
ulat
ive
Rele
ase
(%)
CSH:CS 70:30
Controlled drug release from FDA approved polymers
Gisela Buschle-Diller
Coloration and pigmentation
Pigments for clear coatings from renewable resources
Gisela Buschle-Diller
Thermoplastic nanocomposites: processing for enhanced performance
Improved mechanical, thermal, and barrier properties of polymeric materials would enable increased metal resulting in lower weight more fuel efficient automobiles
Edward Davis
Surface Response DOE Traditional Methods
Elucidate how performance is affected by traditional processing conditions and develop new scalable processing methods that can be integrated with existing thermoplastic processing industry to provide improved materials at lower cost.
Novel Processing
Improved Dispersion Better Performance
Scratch resistant waterborne coatings
Aesthetic and protective coatings that can be applied in an environmentally friendly fashion with improved scratch resistance are needed
Edward Davis
020406080
100120140160180200
0% 20% 40% 60% 80% 100%
Kön
ig H
ardn
ess
Silica fraction in dried film Particle Encapsulation by Emulsion Polymerization Improved Hardness Problem
Develop new technologies for encapsulating nanoparticles in water borne coating latex systems. Improve coating properties, enable use of novel nanoparticles, increase aesthetic appeal of vehicles, enable increased use of environmentally friendly application methods.
Optimal design of polymer matrix composite materials and structures
Material design: Developed pcGINA© to calculate mechanical and thermal properties and stress and strain distributions
Structural design and Finite Element Analysis of composite materials for complex structures, creation of special elements, failure analysis
Yasser Gowayed
Manufacture and testing of complex composite structures
Multi-direction composite flywheels
Mold design Develop and conduct testing protocols
Yasser Gowayed
Thermo-mechanical properties for Ceramic Matrix Composites
0.00E+00
5.00E+07
1.00E+08
1.50E+08
2.00E+08
2.50E+08
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Length as a fraction of the unit cell
Stre
ss (P
a) P1P2P3P4P5P6P7P8P9P10P11P12P13P14P15node 1node 2node 3node 4
Comparison of pcGINA© calculations to ANSYS results for SiC/SiC 01/01 material
Effect of defects on properties
Yasser Gowayed
Ballistic and bomb protection • Auburn’s technologies are
being designed for V22 Osprey and other aircraft
• Waterproof, sound and thermal insulation added.
• Level IIIA and frag protection at 0.75 – 0.85 lbs/ft2
• Next goal is 7.62x39 AP protection at 2 lbs/ft2
• Bomb protection at 2.5 lbs/ft2
tested by USMC against IED’s
Gwen Thomas
Scalable manufacturing of nanomaterials for enhanced toughness of composites
General Approach
Challenges: 1. Mostly lab-scale
manufacturing with high cost
2. Difficult to process and integrate into existing composite systems
Xinyu Zhang
Line-Patterned magnetic nanoparticles on flexible substrates
Challenges: Most pre-existing methods are costly, and not easy to scale up, such as e-beam lithography
Xinyu Zhang
Design the pattern using
office softwares
Dip-coating in magnetic
nanoparticle synthesis
Pattern of magnetic
nanoparticle
Sonication in toluene to
remove toner
Pattern after dip coating
Applications: 1. Ultra-high
density storage
2. Height sensor 3. Magnetic
imaging