Direct Long-Fiber Thermoplastic Molding D-LFT

In filament winding the continuous fibers are impregnated in a resin mix bath and then woxmd on a rotating mandrel. The successful cylinders with longitudinal or helical and hoop reinforcement were made with sisal epoxy and jute-polyester. 

The use of cheap, synthetic, bulk polymers with the addition of a biodegradable or photooxidizable component  

Chemical modification of the main polymer chain of synthetic polymers by the introduction of hydrolyzable or oxidizable groups  

Tailor make new hydrolyzable structures, e.g., polyesters, polyanhydrides and polycarbonates. 

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