Version 1
: Received: 18 May 2023 / Approved: 18 May 2023 / Online: 18 May 2023 (07:29:45 CEST)
How to cite:
Tamayo-Vegas, S.; Lafdi, K.; Tarfaoui, M.; Lafdi, K.K.; Daly, M. Use of In-situ and Ex-situ Characterization Techniques to Study the Effects of Acid Diffusion on Physical Properties of Polymer Composites.. Preprints2023, 2023051288. https://doi.org/10.20944/preprints202305.1288.v1
Tamayo-Vegas, S.; Lafdi, K.; Tarfaoui, M.; Lafdi, K.K.; Daly, M. Use of In-situ and Ex-situ Characterization Techniques to Study the Effects of Acid Diffusion on Physical Properties of Polymer Composites.. Preprints 2023, 2023051288. https://doi.org/10.20944/preprints202305.1288.v1
Tamayo-Vegas, S.; Lafdi, K.; Tarfaoui, M.; Lafdi, K.K.; Daly, M. Use of In-situ and Ex-situ Characterization Techniques to Study the Effects of Acid Diffusion on Physical Properties of Polymer Composites.. Preprints2023, 2023051288. https://doi.org/10.20944/preprints202305.1288.v1
APA Style
Tamayo-Vegas, S., Lafdi, K., Tarfaoui, M., Lafdi, K.K., & Daly, M. (2023). Use of In-situ and Ex-situ Characterization Techniques to Study the Effects of Acid Diffusion on Physical Properties of Polymer Composites.. Preprints. https://doi.org/10.20944/preprints202305.1288.v1
Chicago/Turabian Style
Tamayo-Vegas, S., Khalil K Lafdi and Mohamed Daly. 2023 "Use of In-situ and Ex-situ Characterization Techniques to Study the Effects of Acid Diffusion on Physical Properties of Polymer Composites." Preprints. https://doi.org/10.20944/preprints202305.1288.v1
Abstract
In this study various samples were fabricated by increasing the amount of CNT from 0% to 5%. The bulk mechanical properties of the samples were measured using DMA. Alternatively, the local mechanical properties were assessed using nanoindentation technique. There is a clear trend that the behavior of the material is dependent of carbon fillers before, during and after percolation threshold. The bulk mechanical properties were reduced after the percolation threshold due to CNT agglomeration. Then the samples were exposed to acid solution for one week and one month. Regardless the amount of CNT in the matrix, there is always a gradient of properties from the skin to the core of the sample. There is a net reduction of in physical properties. However, the level of degradation was a dependent of the amount of CNT in the host polymer. At higher concentration the CNTs behave as a barrier. However due to the formation of porosity around the CNT agglomerates, the acid diffusion encounters preferential path ways. . Both techniques lead to the same observation..
Keywords
Polymer Composites; Nanoindentation; Vector Network Analyzer; Acid Diffusion; Structural Health Monitoring; Free Space Characterization.
Subject
Chemistry and Materials Science, Materials Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
