C. M. Ewulonu
Department of Polymer and Textile Engineering, Nnamdi Azikiwe University, Awka, P. M. B. 5025, Awka, Nigeria
I. C. Chukwujike
Department of Polymer and Textile Engineering, Nnamdi Azikiwe University, Awka, P. M. B. 5025, Awka, Nigeria
U. J. Timothy
Department of Polymer and Textile Engineering, Nnamdi Azikiwe University, Awka, P. M. B. 5025, Awka, Nigeria