Shape Memory Polymers

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Shape Memory Polymers

• By Jorge Ramos
• MEEN 3344

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Shape Memory PolymersBackground

• Introduced to United States in 1984 after its
  original introduction in Japan.
• Combination of Polymeric materials with the
  capability to temporarily deform then restore to
  their original shape through thermal stimuli such
  as temperature change.
• Exhibit long covalent cross linked bonds.
• Tested to potentially deform up to 200 of their
  original state and still restore their original
  shape.
• Light weight
• Potentially biodegradable for surgical procedures
• Cheaper to manufacture than Shape memory Alloys.

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Applications

• Self Deployment Mechanisms
• Eyeglass Frames
• Automatic auto body repairs.
• Reusable Molds.
• Custom reusable mandrels.

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Anticipated Applications

• Biodegradable biomedical stents.
• Artificial muscles
• Aeronautical Morphing Wings
• Outer Space self deployment systems
• Self stitching biodegradable materials

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Cornerstone Research GroupVeriflex Shape Memory
Polymer

• CRG is a leading engineering and research group
  that specializes in the discovery and development
  of innovative materials.
• Veriflex is a shape memory polymer with an
  adjustable thermal activation range between -20ºF
  to 500 ºF.
• Strong and stable SMP with elastic properties at
  given temperatures.
• Used in the performance racing industry for rapid
  body repairs on complex surfaces.

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References

• Cornerstone Research Group
  http//crgrp.net
• CEN (Chemical Engineering News) Suite of Shape
  Memory Polymers Vol. 79. Number 6. (February
  5, 2008)
• William D. Callister, Jr., and David G.
  Rethwisch. Fundamentals of Material Science An
  Integrated Approach Hoboken, NJ John Wiley
  Sons Inc. 2008
• Andreas Lenlein Shape Memory Polymers
  Biodegredable Sutures 2002 lthttp//www.azom.com/D
  etails.asp?ArticleID1542gt