ERG Meeting, May 28, 2009

1. Shape Memory Polymer and Its Applications Kelly Kirsch SMART MATERIALS SHAPING TOMORROW’S WORLD ERG Meeting, May 28, 2009

2. Hello, Texas! We are glad to be here!

3. Who is LGT? • LGT is a start up firm that has been funded by the Dayton Development Coalition’s Entrepreneurial Signature Program.

4. What is ESP We are part of the Dayton RegionEntrepreneurial Signature Program!

5. Total Support *To this date we have received almost $200,000 in funding to help develop our Shape Memory Elastomer Technology. *Fully equipped Polymer Lab located at Dayton Entreprenuer Center

6. Total Support • *The Dayton Region is the recipient of an Ohio Department Third Frontier grant of $11.3 million dollars matched by $7.5 million from local investors. • *With an additional $3.7 million pledged there is over $22 million dollars available for companies to partner with other technology based companies.

7. What does that mean for ERG? • We are part of an EMTEC (Emerging Technology Group) that is actively seeking strategic partners to help bring cutting edge technology to commercialization. • We are eager, available and excited about working with the ERG and other organizations to both seek available funding and to help develop new markets. • With that I would like to introduce, Dr. David Liu, who has developed and holds the patent that everyone is talking about: SME that hold and maintain their shape at pre-determined temperatures.

8. Unique Technology Of SMP Shape Memory Polymer Structure SMPs exist in a glassy state at lower temperatures glassy state FORCE FORCE Deformation frozen in the glassy state after cooling under load COOL < Tg HEAT > Tg HEAT Second Shape rubbery state First Shape Final Shape SMPs exist in a rubbery state at higher temperaturesx Recover due to the elasticity of rubbery state Because the glassy modulus is at least two orders of magnitude higher than that of the rubbery modulus, the stored elastic stress is not large enough to drive the reverse deformation in the glassy state as the load is removed.

9. What is Shape Memory Polymer

10. Any Shape? - Yes

11. Pressed SMP- In Oil Bath Second Shape (pressed at higher temperature and cold down to room temperature) First Shape The thickness of SMP was pressed from 5 mm to 1 mm.

12. Pressed SMP- In Oil Bath 20C 120C

13. Pressed SMP--in Oil Bath 160C 190C Recovered Shape (after heated to higher temperature)

14. TMA Results Only 5.8% of increase in dimension when temperature is lower than shape transition temperatures. The dimension abruptly increases and expanded to 132.8% when the temperature is increased above 130C. 150% compressed SMP Heating rate: 2C/min

15. DMA Results • The modulus of SMP at ambient temperature is about 300 MPa • When the temperature increases the modulus abruptly decreases and then forms a plateau, and keeps quiet stable up to about 250°C • The modulus in the plateau region of SMPs increases with the specific design.

16. Application in Oil Field Self energetic isolation Gas Oil Self energetic SMP Packer Water Expansion with a certain temperature in any media – gas, oil or water

17. Demo of SM “Packer” in Lab Original Shape 150% Compressed Self Energetic Isolation

18. LGT’s SMP Products LubriSwell™ HydriSwell™ IntelliShape™

19. IntelliShape™ SMP • Activated only by heat in all kinds of media • Shape change: more than 400% • Fast response during the deformation. IntelliShape - thermally activated SMPs • Easy manipulation • Designable temperature: 90°Cto 200°C. • Processed using traditional polymer processing methods, mold, extrusion, etc.

20. Swellable Shape Memory HydriSwell/LubriSwell ™ • Shape change: 100% to 300% • temperature: 90°C to 180°C • Oil and water swellable SMPs expansion: more than 2 times run-in volume Water Swellable SMP Advantages of materials:swellable SMPs Compared to swellable • Larger expansion • Maintaining higher modulus after expansion Oil Swellable SMP • Designable expansions of memory and swelling

21. Shape Memory Polymer Foam • The foaming cell can be close cell or open cell or half close and half open cell. • Close cell will storage some of the energy caused by the pressed air in the cell when the cell volume of F-SMP is decreased by the external force, such as pressing, twisting etc. • The close cell structure • with the compressed air will give further expansion force when shape memory deformation of F-SMP starts. The typical SEM images of the pressed F-SMP and recovered F-SMP

22. Conductive Nanofillers The addition of conductive fillers including metallized and nano-scale fillers but not limited, such as, conductive exfoliated graphite (EX-GR), carbon nanotube (CNT) or nanofiber (CNF), etc will form a conductive network in SMP when the amounts of the fillers exceed their percolation threshold.

23. Conductive SMPs Electrical conducctive shape memory nanocomposites can be actuated by the passage of electric current to the temperature above the shape yransition temperature because the carbon nanofibers' network forms electrically conductive pathways throughout the nanocomposite.

24. Applications of SMPs Medical Auto Construction Oil Tools Traffic Artificial Flowers Sport Toy

25. Thank you for you time!