High density polyethylene modified by reaction with dicumyl peroxide combining differentiated properties for processability by blow extrusion and extrusion followed by spinning

摘要

b high density polyethylene modified by reaction with peroxide for the manufacture of films and fibers d a product has been described which has mfi ~ 190 / 21.6 ~ between 1.0 and 10.0 g / lomin; density between 0.94 and 0.97; branched molecular structure in the range between 0.5 and 3.0 lcb / ioooc; polydispersion between 4.5 and 6.5; fraction of very high molar mass (mz + 1) between 6x10 ^ 6 ^ and 8.5x10 ^ 6 ^; massamolar distribution curve with mw 10 ^ 6 ^ between 3.0% and 6.0% by weight and 10 ^ 5 ^ mw 10 ^ 6 ^ between 40% and 55% by mass. such molecular characteristics and differentiated properties give the product processability by blow extrusion and extrusion followed by spinning for the manufacture of films and fibers.