Mechanical, rheological, morphological and water absorption properties of maleated polyethylene/hemp composites: Effect of ground tire rubber addition

Natural fibre composites were produced from maleated polyethylene (MAPE) and hemp fibres, while impact modification was performed via ground tire rubber (GTR) addition. Incorporation of hemp fibre increased significantly the tensile (strength and modulus) and flexural properties of the MAPE matrix. Impact strength however, decreased with increasing hemp content, but GTR addition led to a noticeable increase in impact strength (up to 50% at 10% GTR). Increase in hemp content produced also higher water uptake and longer saturation time. After ageing in water, the mechanical properties and thermal stability were unchanged for samples up to 30% hemp, but samples at higher concentrations showed some degradation.