Bisphenol-A based epoxy resin was modified by blending with 1% by weight (wt%) of methyl methacrylate (MMA)/glycidyl
methacrylate (GMA) grafted depolymerized natural rubber (GDNR). The blend showed the impact strength of 163% higher than
that of neat epoxy resin. In order to study the effect of alkalized and silanized woven sisal fiber on the properties of 1 wt%
GDNR/epoxy resin blend, alkalized woven sisal fiber was prepared using 2 wt% NaOH solution and silanized fiber was prepared
by treated alkalized fiber with