Based on extensive review of literature on characterization and size effect of strain rate sensitivity of fiber materials and nano-scale inter-phase, this study is carried out for inter-phase modification using plasma treated nano SiO2 coating on carbon fibers and ultrahigh molecular weight polyethylene (HMWPE) fibers. Similarly, plasma treatments are also applied to montmorillonite (MMT), carbon nanotube (CNT), TiO2 nano particles filled polylactic acid (PLA)/polypropylene (PP) nano-composite fiber. It is ...