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A study of the effect of acid immersion on some physical properties of ( Epoxy – MgO) composites | ||
| Iraqi Journal of Physics | ||
| Article 1, Volume 13, Issue 26, 2015, Pages 146-150 | ||
| Authors | ||
| Rifqa A. Salman; Jinan M. H. Jabir; Salma M. Hassan | ||
| Abstract | ||
| In this study a polymeric composite material was prepared by hand lay-up technique from epoxy resin as a matrix and magnesium oxide (MgO) as a reinforcement with different weight fraction (5,10,15, and 20)% to resin. Then the prepared samples were immersed under normal condition in H2So4(1 M) solution, for periods ranging up to 10 weeks. The result revealed that the diffusion coefficient decreasing as the concentration of MgO increase. Also we studied Hardness for the prepared samples before and after immersion. The result revealed that the hardness values increase as the concentration of MgO increase, while the hardness for the samples after immersion in H2SO4 decreased as compared to those before immersion. In addition, the dielectric strength decreasing by increasing the MgO concentration with time immersion. | ||
| Keywords | ||
| Polymer composite; Epoxy resin; Dielectric Toughness; Hardness; Immersion | ||
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