Fabrication of flexible dielectric materials with improved mechanical properties using silicone rubber and Cu-Al-Zn alloy
El-Sabbagh, S., Nassar, A., Ward, A., Mohamed, W., Mahmoud, D. (2024). Fabrication of flexible dielectric materials with improved mechanical properties using silicone rubber and Cu-Al-Zn alloy. EKB Journal Management System, 67(6), 247-256. doi: 10.21608/ejchem.2023.244813.8778
Salwa H. El-Sabbagh; Amira Nassar; A. A. Ward; Wael S. Mohamed; Doaa S Mahmoud. "Fabrication of flexible dielectric materials with improved mechanical properties using silicone rubber and Cu-Al-Zn alloy". EKB Journal Management System, 67, 6, 2024, 247-256. doi: 10.21608/ejchem.2023.244813.8778
El-Sabbagh, S., Nassar, A., Ward, A., Mohamed, W., Mahmoud, D. (2024). 'Fabrication of flexible dielectric materials with improved mechanical properties using silicone rubber and Cu-Al-Zn alloy', EKB Journal Management System, 67(6), pp. 247-256. doi: 10.21608/ejchem.2023.244813.8778
El-Sabbagh, S., Nassar, A., Ward, A., Mohamed, W., Mahmoud, D. Fabrication of flexible dielectric materials with improved mechanical properties using silicone rubber and Cu-Al-Zn alloy. EKB Journal Management System, 2024; 67(6): 247-256. doi: 10.21608/ejchem.2023.244813.8778

Fabrication of flexible dielectric materials with improved mechanical properties using silicone rubber and Cu-Al-Zn alloy

Egyptian Journal of Chemistry
Volume 67, Issue 6, June 2024, Pages 247-256    PDF (1.25 M)
Document Type: Original Article
DOI: 10.21608/ejchem.2023.244813.8778
Authors
Salwa H. El-Sabbagh* 1; Amira Nassar2; A. A. Ward3; Wael S. Mohamed1; Doaa S Mahmoud1
1Department of Polymers and Pigments, National Research Center, Cairo, Egypt
2Solid State Physics Department, Metal Physics Laboratory, National Research Centre, Dokki, Giza, Egypt
3Department of Microwave Physics and Dielectrics, National Research Center, Cairo, Egypt
Abstract
Dielectric polymer composites have unusual properties that have significantly increased in a wide variety of applications. However, shape memory materials, which are a significant part of the category of smart materials, are substances that possess specific characteristics, namely, shape memory affect (SME) and pseudo -elasticity. SME has been examined using thermo-mechanical techniques. In this approach, silicone rubber (SiR) composites using Cu-Al-Zn alloy as fillers may be able to achieve a high permittivity and low dielectric loss. The purpose of this study is to explore the effect of Cu-Al-Zn alloy in particle form on the physical properties of silicone rubber. The results disclosed an improvement in stiffness and elasticity as well as dielectric properties of silicone rubber/Cu-Al-Zn alloy composites. The results showed lower hysteresis at higher Cu-Al-Zn alloy content. Further, the values of permittivity ε' and dielectric loss ε″ of the investigated composite were in case of using Cu-Al-Zn alloy. Besides, the SiR composites containing Cu-Al-Zn alloy have a promising insulating performance and can be used in electric insulation applications. Additionally, the values of conductivity of the SiR/ Cu-Al-Zn alloy composites vary from 10-13 to ~10-9 S cm–1. This value is sufficient for these composites to exhibit electrostatic dissipation behaviour
Keywords
Silicone rubber (SiR); Cu-Al-Zn based alloy; rheology; physico-mechanical; dielectric properties; DSC
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