Effect of processing on the mechanical properties of insulating epoxy
Effect of processing on the mechanical properties of cured epoxy resins has been studied. During the preparation process of an epoxy material, one of the most common induced defects that occurs are voids. The presence of these voids strongly influence the mechanical properties of the cured epoxy...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
Nanyang Technological University
2022
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| Online Access: | https://hdl.handle.net/10356/158453 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Effect of processing on the mechanical properties of cured epoxy resins has
been studied. During the preparation process of an epoxy material, one of the most
common induced defects that occurs are voids. The presence of these voids strongly
influence the mechanical properties of the cured epoxy resins and one of the
solutions to tackle this issue is effective degassing process. The cured epoxy resin
samples in this study were prepared with a standard mixing time of 1 minute and
varied degassing time ranging from 0 to 30 seconds. Dynamic mechanical properties,
such as storage modulus (E'), loss modulus (E''), damping (tan δ) and glass transition
temperature (Tg), and mechanical properties such as tensile strength and thermal
characteristics were evaluated. Fractured surfaces were observed using field emission
scanning electron microscopy. In general, the experimental results suggest that the
sample with the longest degassing time exhibited superior mechanical, dynamic
mechanical and thermal properties. |
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