© The Institution of Engineering and Technology
The performance of low-density polyethylene (LDPE) clay nanocomposites was analysed. The inclusion of nano montmorillonite (MMT) clay in LDPE material has significantly increased the contact angle, corona ageing resistance, water droplet initiated corona inception voltage and surface discharge inception voltage of the composites. The surface charge decay rate of the samples significantly reduced on the inclusion of clay indicating modified trap distribution characteristics due to the inclusion of the filler. Dynamical mechanical analysis indicates increased storage modulus and reduced tan (δ) due to nanofillers inclusion. Laser-induced breakdown spectroscopy indicates that on inclusion of nanofillers the plasma temperature increases and crater depth decreases. In particular, increased discharge resistance, improved thermomechanical properties are observed with LDPE–MMT clay composites compared to pure LDPE.
References
-
-
1)
-
9. Sarathi, R., Sahoo, A., Chen, Y., et al: ‘Understanding surface discharge activity with epoxy silicon carbide nanocomposites’, Polym. Eng. Sci., 2017, 57, pp. 1349–1355 (doi: 10.1002/pen.24518).
-
2)
-
21. Watson, P.K.: ‘The thermalization and trapping of electrons in polystyrene’, IEEE Trans. Dielectr. Electr. Insul., 1987, EI-22, (2), pp. 129–132 (doi: 10.1109/TEI.1987.298869).
-
3)
-
18. Rogers, K., Takacs, E., Thompson, M.R.: ‘Contact angle measurement of select compatibilizers for polymer-silicate layer nanocomposites’, Polym. Test., 2005, 24, (4), pp. 423–427 (doi: 10.1016/j.polymertesting.2005.01.010).
-
4)
-
14. Zhang, H., Wei, Y., Kang, Z., et al: ‘Influence of partial substitution for carbon black with graphene oxide on dynamic properties of natural rubber composites’, IET Micro Nano Lett., 2017, 12, (9), pp. 605–610 (doi: 10.1049/mnl.2016.0035).
-
5)
-
6. Kozako, M., Kuge, S.I., Imai, T., et al: ‘Surface erosion due to partial discharges on several kinds of epoxy nanocomposites’. Proc. of the Annual Report – Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP ’05), 2005, pp. 162–165.
-
6)
-
22. Ziari, Z., Mallem, H., Sahli, S.: ‘Influence of the temperature on the surface potential decay of polymer films charged negatively by corona discharge under light radiation’. Proc. of 2014 Mediterranean Microwave Symp. (MMS 2014), Marrakech, 2014, pp. 1–4.
-
7)
-
3. Tanaka, T., Imai, T.: ‘Advanced nanodielectrics: fundamentals and applications’ (CRC Press, USA, 2017).
-
8)
-
16. Ashwin Desai, B.M., Mishra, P., Vasa, N.J., et al: ‘Understanding the performance of corona aged epoxy nano micro composites’, Micro & Nano Letters, 2018, 13, (9), pp. 1280–1285 (doi: 10.1049/mnl.2018.0164).
-
9)
-
20. Simmons, J.G.S., Tam, M.C.: ‘Theory of isothermal currents and the direct determination of trap parameters in semiconductors and insulators containing arbitrary trap distributions’, Phys. Rev. B, 1973, 7, (8), pp. 3706–3716 (doi: 10.1103/PhysRevB.7.3706).
-
10)
-
8. Arunvisut, S., Phummanee, S., Somwangthanaroj, A.: ‘Effect of clay on mechanical and gas barrier properties of blown film LDPE/clay nanocomposites’, J. Appl. Polym. Sci., 2007, 106, pp. 2210–2217 (doi: 10.1002/app.26839).
-
11)
-
25. Menczel, J.D., Prime, R.B.: ‘Thermal analysis of polymers: fundamentals and applications’ (Wiley, USA, 2009).
-
12)
-
31. Sansonetti, J.E., Martin, W.C.: ‘Handbook of basic atomic spectroscopic data’, J. Phys. Chem. Ref. Data, 2005, 34, pp. 1559–2259 (doi: 10.1063/1.1800011).
-
13)
-
15. Molinié, P.: ‘A review of mechanism and models accounting for surface potentialdecay’, IEEE Trans. Plas. Sci., 2012, 40, (2), pp. 167–178 (doi: 10.1109/TPS.2011.2171372).
-
14)
-
19. Kumara, J.R.S.S, Serdyuk, Y.V., Gubanski, S.M.: ‘Surface potential decay on LDPE and LDPE/Al2O3-nano-composites: measurements and modeling’, IEEE Trans. Dielectr. Electr. Insul., 2016, 23, (6), pp. 3466–3475 (doi: 10.1109/TDEI.2016.005663).
-
15)
-
21. Meyer, L.H., Jayaram, S.H., Cherney, E.A.: ‘A novel technique to evaluate the erosion resistance of silicone rubber composites for high voltage outdoor insulation using infrared laser erosion’, IEEE Trans. Dielectr. Electr. Insul., 2005, 12, (6), pp. 1201–1208 (doi: 10.1109/TDEI.2005.1561800).
-
16)
-
5. Alapati, S., Thomas, M.J.: ‘Electrical treeing and the associated PD characteristics in LDPE nanocomposites’, IEEE Trans. Dielectr. Electr. Insul., 2012, 19, (2), pp. 697–704 (doi: 10.1109/TDEI.2012.6180265).
-
17)
-
33. Descoeudres, A., Hollenstein, C., Demellayer, R., et al: ‘Optical emission spectroscopy of electrical discharge machining plasma’, J. Phys. D. Appl. Phys., 2004, 37, (6), pp. 875–882. (doi: 10.1088/0022-3727/37/6/012).
-
18)
-
21. Tanaka, T.: ‘Dielectric nanocomposites with insulating properties’, IEEE Trans. Dielectr. Electr. Insul., 2005, 12, pp. 914–928 (doi: 10.1109/TDEI.2005.1522186).
-
19)
-
1. Dissado, L.A., Fothergill, J.C.: ‘Electrical degradation and breakdown in polymers’, in Stevens, G.C. (ED.): ‘IET materials and devices Series 9’, (Peter Peregrinus Ltd, London, UK, 1992), pp. 117–143.
-
20)
-
16. IEC publication, 60 112: ‘Recommended method for determining the comparative tracking index of solid insulating material under the moist condition’ (IEC, Geneva, Switzerland, 1972, 2nd edn.).
-
21)
-
19. Sarathi, R., Harsha, V.S., Vasa, N.J., et al: ‘Water droplet initiated discharges on epoxy nano composites under DC voltages’, IEEE Trans. Dielectr. Electr. Insul., 2016, 23, (3), pp. 1743–1752 (doi: 10.1109/TDEI.2016.005387).
-
22)
-
2. Chen, X.R., Murdany, D., Liu, D.M., et al: ‘AC and DC pre-stressed electrical trees in LDPE and its aluminum oxide nanocomposites’, IEEE Trans. Dielectr. Electr. Insul., 2016, 23, (3), pp. 1506–1514 (doi: 10.1109/TDEI.2016.005622).
-
23)
-
7. Eesaee, M., David, E., Nicole, R., et al: ‘Electrical breakdown properties of clay-based LDPE blends and nanocomposites’, J. Nanomater., 2018, 2018, pp. 1–17 (doi: 10.1155/2018/7921725).
-
24)
-
50. Lopes, I.J.S., Jayaram, S.H., Cherney, E.A.: ‘A study of partial discharges from water droplets on a silicone rubber insulating surface’, IEEE Trans. Dielectr. Electr. Insul., 2001, 8, (2), pp. 262–268 (doi: 10.1109/94.919951).
-
25)
-
10. Sonerud, B., Bengtsson, T., Blennow, J., et al: ‘Dielectric heating in insulating materials subjected to voltage waveforms with high harmonic content’, IEEE Trans. Dielectr. Electr. Insul., 1995, 16, (4), pp. 926–933 (doi: 10.1109/TDEI.2009.5211835).
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