Local heat treatment for polymer modification and shape switching
From synthetic fibers in the fashion industry, and polymer-based paints for construction, to biomedical devices in healthcare, the ability to quickly change the physical and chemical properties of polymers makes them very versatile and widely used all over the world. Moreover, most polymers also...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
Nanyang Technological University
2023
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| Online Access: | https://hdl.handle.net/10356/167355 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | From synthetic fibers in the fashion industry, and polymer-based paints for construction,
to biomedical devices in healthcare, the ability to quickly change the physical and
chemical properties of polymers makes them very versatile and widely used all over the
world. Moreover, most polymers also possess shape memory effect (SME), which allows
a material to return to its original shape from a temporary programmed shape under the
right conditions. This report will investigate how heat treatment from a 400-460nm
wavelength diode laser engraving machine on polyvinyl chloride (PVC), polyimide (PI),
and thermoplastic polyurethane 262A (TPU) will affect their physical properties and
outward appearance. A series of experiments were conducted on these materials to explore
ways where precise local heating through laser treatment when applied to these materials
can alter their physical properties and appearance in a controlled and precise manner to
create 3-dimensional (3D) structures or patterns that may allow us to create new and
innovative products. |
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