| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Engineering -- From Ideas to Practice: An EPD Symposium in Honor of Jiann-Yang Hwang
|
| Presentation Title |
Influence of Surface Treatment on Physical and Chemical Behavior of Politetrafluoroethylene |
| Author(s) |
Karollyne Gomes de Castro Monsores, Géssica Nicolau, Anderson Oliveira, Suzane Oliveira, Ricardo Weber, Sergio Neves Monteiro |
| On-Site Speaker (Planned) |
Sergio Neves Monteiro |
| Abstract Scope |
In this work, polytetrafluoroethylene (PTFE) was treated superficially in an accelerated aging chamber for non-metals (UV-B) in the range of 290 nm ~ 315 nm. Automatic temperature control was adopted, with exposure time ranging from 0h to 100h, without simulation of rain and/or fog. The effects of the treatment on the thermomechanical properties, the color change, and the formation of micro-cracks due to the rupture of the primary chemical bonds were investigated. The characterizations showed that the treatment was able to change the surface characteristics, as noted through a subtle increase in the percentage of crystallinity and wettability, corroborating the hardness values obtained. Also, the maintenance of surface roughness and thermal stability was observed for all samples. |
| Proceedings Inclusion? |
Planned: |