Abstract
Minor physical defects can decrease the dielectric efficiency of epoxy resin and severely threaten the electrical device’s dependability. Self-healing may be considered an effective method to preserve the electrical and mechanical properties of the epoxy resin. Besides, self-healing significantly decreases the influence of small physical destruction on the power system. In this research, epoxy resin incorporated with various concentration of microcapsules was prepared. The polyurea formaldehyde (PUF) microcapsules were treated using a silane coupling agent (KH550) to enhance dispersion. Moreover, the self-healing performance of the epoxy resin incorporated with microcapsules was analyzed by FTIR, SEM, and DC Flashover in air and vacuum. In addition, trap energy and trap density were obtained from measurements of surface potential decay (ISPD). The SEM results indicate that in comparison with pure epoxy resin, the microcapsule/epoxy resin composite has an improved self-healing performance. The DC Flashover of epoxy resin in air and vacuum was found relatively higher after incorporation of microcapsules than pure epoxy resin. The distribution of trap energy and trap density measured by surface potential decay measurements confirms that 5 wt% have deeper traps and the highest trap energy levels.
Similar content being viewed by others
Change history
24 February 2021
A Correction to this paper has been published: https://doi.org/10.1007/s10854-021-05294-x
References
M.Z. Khan, F. Wang, L. He, Z. Shen, Z. Huang, M.A. Mehmood, Influence of treated nano-alumina and gas-phase fluorination on the dielectric properties of epoxy resin/alumina nanocomposites. IEEE Trans. Dielectr. Electr. Insul. 27, 403–408 (2020)
M.Z. khan, A. Waleed, A. khan, M.A.S. Hassan, Z.J. Paracha, U. Farooq, Significantly improved surface flashover characteristics of epoxy resin/Al2O3 nanocomposites in air, vacuum and SF6 by gas-phase fluorination. Electron. Mater. Sci. 49, 3400–3408 (2020)
F. Wang, T. Zhang, J. Li, M.Z. Khan, Z. Huang, L. He, Y. He, DC breakdown and flashover characteristic of direct fluorinated epoxy/Al2O3 nanocomposites. IEEE Trans. Dielectr. Electr. Insul. 26, 731–737 (2019)
M.Z. Khan, F. Wang, J. Li, M.A.S. Hassan, J. Ahmad, M.A. Mehmood, Y. He, Effect of direct fluorination on electrical characteristics of epoxy resin alumina composites, IEEE International Conference on Dielectrics, 1–4 (2018).
Y. Wang, Y. Liu, S. Wang, H. Xu, The effect of electro thermal aging on the properties of epoxy resin in dry-type transformer. Trans. China Electrotech. Soc. 33, 250–260 (2018)
L. Arronche, V. Saponara, S. Yesil, Impact damage sensing of multiscale composites through epoxy matrix containing carbon nanotubes. J. Appl. Polym. Sci. 128, 2797–2806 (2013)
N. Saurín, J. Sanes, M. Bermúdez, Self-healing of abrasion damage in epoxy resin-ionic liquid nanocomposites. Tribol. Lett. 58, 4 (2015)
P. Hu, C. Li, D. Chen, Cause analysis and countermeasure study of cracking accident of cable GIS terminal epoxy casing. Electr. Power Eng. Technol. 36, 102–105 (2017)
Y. Wang, Y. Liu, K. Xiao, The effect of hygrothermal aging on the properties of epoxy resin. J. Electr. Eng. Technol. 13, 892–901 (2018)
L. Chen, T. Tsao, Y. Lin, New diagnosis approach to epoxy resin transformer partial discharge using acoustic technology. IEEE Trans. Power Deliv. 20, 2501–2508 (2005)
M. Huang, K. Zhou, D. Yang, M. Yang, Effect of on-line rejuvenation on water tree propagation in XLPE cables. Trans. China Electrotech. Soc. 31, 176–182 (2016)
E.N. Brown, S.R. White, N.R. Sottos, Retardation and repair of fatigue cracks in a microcapsule toughened epoxy. Composite-part II: In situ self-healing. Compos. Sci. Technol. 65, 2474–2480 (2005)
M. Yang, K. Zhou, K. Wu, W. Tao, D. Yang, A new rejuvenation technology based on formation of nano-SiO2 composite fillers for water tree aged XLPE cables. Trans. China Electrotech Soc. 30, 481–487 (2015)
G. Wei, J. Tang, X. Zhang, J. Lin, Gray intensity image feature extraction of partial discharge in high-voltage cross-linked polyethylene power cable joint. Int. Trans. Electr. Energy Syst. 24, 215–226 (2014)
T. Xu, X. Dong, R. Li, G. Liu, H. Xia, Z. Xia, Ultrasonic phased array detection of composite insulator internal defects. Electr. Power Eng. Technol. 37, 75–79 (2018)
S.R. White, N.R. Sottos, P.H. Geubelle, J.S. Moore, M.R. Kessler, S.R. Sriram, Autonomic healing of polymer composites. Nature 409, 794–797 (2001)
D.G. Bekas, K. Tsirka, D. Baltzis, A.S. Paipetis, Self-healing materials: a review of advances in materials, evaluation, characterization and monitoring techniques. Compos. B 87, 92–119 (2016)
J. Kang, J.B.H. Tok, Z. Bao, Self-healing soft electronics. Nat. Electron. 2, 144–150 (2019)
W. Li, B. Dong, Z. Yang, J. Xu, Q. Chen, H. Li, F. Xing, Z. Jiang, Recent advances in intrinsic self-healing cementitious materials. Adv. Mater. 30, 1705679 (2018)
E.B. Murphy, F. Wudl, The world of smart healable materials. Prog. Polym. Sci. 35, 223–251 (2010)
S. An, M.W. Lee, A.L. Yarin, S.S. Yoon, A review on corrosion-protective extrinsic self-healing: comparison of microcapsule-based systems and those based on core-shell vascular networks. Chem. Eng. J. 344, 206–220 (2018)
X. Zhang, H. Ji, Z. Qiao, Residual stress in self-healing microcapsule-loaded epoxy. Mater. Lett. 137, 9–12 (2014)
C. Lesaint, R. Gard, V. Hølto, J. Saeternes, H.H. Hestad, S. Hvidsten., Self-healing high voltage electrical insulation materials. IEEE Electrical Insulation Conference (EIC). 241–244 (2014)
W.W. Shen, H.B. Mu, G.J. Zhang, J.B. Deng, D.M. Tu, Identification of electron and hole trap based on isothermal surface potential decay model. J. Appl. Phys. 113, 083706 (2013)
F. Safaei, S.N. Khorasani, H. Rahnama, R.E. Neisiany, M.S. Koochaki, Single microcapsules containing epoxy healing agent used for development in the fabrication of cost efficient self-healing epoxy coating. Prog. Org. Coat. 114, 40–46 (2018)
C. Zhang, H. Wang, Q. Zhou, Preparation and characterization of microcapsules based self-healing coatings containing epoxy ester as healing agent. Prog. Org. Coat. 125, 403–410 (2018)
M.Z. khan, F. Wang, Z. Huang, A. Waleed, M.A.S. Hassan, Filler concentration effect on breakdown strength and trap level of epoxy resin—Al2O3 nanocomposites. Polym. Bull. (2020). https://doi.org/10.1007/s00289-020-03411-0
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflicts of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
The original online version of this article was revised due to the spell error in one of the co-author name.
Rights and permissions
About this article
Cite this article
Khan, M.Z., Zaib, A., Khan, A. et al. Effect of microcapsules doping on DC flashover and trap level of self-healing epoxy resin composites. J Mater Sci: Mater Electron 32, 2765–2773 (2021). https://doi.org/10.1007/s10854-020-05017-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10854-020-05017-8