Transcript Crystal Method

Can You Heat Me
Now?
Brie Frame
Sandra Gonzalez
Angela Tong
Chenny Zhu
Department of Materials Science • 3.082 • Advisor: Hao Wang
Outline of Presentation
Objective
 Requirements and Restrictions
 What’s Available Now
 Chemical vs. Electrical
 Components of Device
 Proposed Schedule

Objective

Design and fabrication of device to be
used for heat therapy with possible
transdermal drug delivery mechanism
Requirements and Restrictions
Optimal temperature range 32-37° C
 Portability
 Long lasting heat (6-8 hrs)
 Renewable
 Non-Toxic
 Affordable
 Washable

What’s Available Now

Chemical
 Reusable
 Sodium Acetate
 Disposable
 Charcoal Hand Warmers

Electrical
 Electric
Blankets
 Electric Heat Pads

Organic Materials
 Rice
 Flaxseed
Chemical vs. Electrical
Portability
Low Cost
Modular
Temperature
regulation
Compact
Long-lasting
heat
Reusability
Chemical
Electrical
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Components of Device
High Insulating Layer
Heating Core
Low Insulating Layer
Outer Covering
Body
Heating Core

Desired Properties
 Long
lasting heat (6-8
hrs)
 Non-toxic
 Affordable
 Size variability
 Reversible reaction
 Chemical Degradation
Resistance (multiple
cycles)
 Biodegradable
 Easily replaceable

Potential Materials
 Sodium Acetate
 Phase
Changing
Materials
 Potassium Nitrate
 Iron/Oxygen Reaction
 Calcium
Chloride/Water
 Potassium Chlorate
Insulating Material

Desired Properties
 Dual
Insulators with varying insulating capabilities,
one for each side of band


Retains and slowly releases heat to elongate the heating
time (body side)
Completely insulates heat (environment side)
 High Heat Capacity/Low
 Water Proof
 Heat Resistant

Thermal Conductivity
Potential Materials
 Neoprene
 Insulwrap
Quilts from American Acoustical Products
Outer Covering

Desired Properties

Potential Materials
 Functionality
 Cotton
 Stylish
 Polyester
Design
 Water absorbing/
water wicking
 Comfortable
 Hypo-allergenic
 Biodegradable
 Polypropylene
 Various
combinations of
above
Proposed Schedule
11-Feb 25-Feb 3-Mar
17-Mar 31-Mar 5-Apr
14-Apr 28-Apr 5-May
12-May
Overall Design
Prepare for
Presentation
Final Presentations
Testing and
Troubleshooting
Last Day of Lab Work
Research and
Make Heating
Core
Initial Prototype Due
Research and
Make Insulating
Material
Formal Design Review Presentation
Research and
Make Outer
Material