using appropriate coupling agents to promote adhesion between the fibers and the resin in the first case the fibex was compounded with and 18 melt flow index mfi polypropylene homopolymer aristech 180m using a standard roll mill at 420 f a maleated polypropylene mapp polybond 3200 was used as the coupling agent the compound consisted of 30 to 40 by weight fibex and 1 to 4 by weight mapp with the balance being the pp homopolymer the resulting compound was injection molded into standard specimens for evaluating density per astm 638 tensile properties per astm 6 flexural properties and izod impact the results obtained using fibex as compared to other data from the literature for flax shives as well as other fillers and reinforcements is shown in fig8 and 9 as seen in fig8 both the tensile and flexural strength of the new fibex fibrillated fiber and compound is far superior to all other reinforcements and approach those of glass fibers in pp resins the results are even more pronounced when compared on a strength to weight ratio basis in fig9 3 in the preferred form application of sufficient ultrasonic energy to remove the cellulose polymers from the other constituents the ultrasonic process may occur in different regimes of power frequency container designs and treatment time the method then includes taking the fibrillated fibers and compounding same with polymeric thermoplastics such as pp hdpe ldpe pvc nylon san polyurethanes polystyrenes or thermoset polyesters vinyl esters epoxies etc in particular resins that have processing temperatures below 325 u00b0 c the method of creation further includes the use of mapp based coupling agents or alternate coupling agents between the fibex fibrillated fibers and the polymeric resins such as acrylic acid coupling agents silanes.