Mechanical Performance Improvement of Low-Density Polyethylene Blends

Mechanical properties of recycled low-density polyethylene have been improved by using calcium carbonate as a filler. Compatibility of the filler with a matrix is not sufficient to lead to materials with good elongation at break. This compatibility has been increased by introducing 5 or 10% of compatibilizers as triblock copolymers of styrene and butadiene modified with maleic anhydride. Good results have also been obtained by direct grafting of maleic anhydryde onto recycled low-density polyethylene.