FRACTURE AND FAILURE BEHAVIOUR OF JUTE FABRIC REINFORCED POLYPROPYLENE. EFFECT OF THE INTERFACE MODIFICATION

摘要

The tensile fracture and failure behavior of jute cloth (25 wt.%) reinforced polypropylenen(PP) composites were studied as a function of the interface modifi cation. The latter coverednesterifi cation of the jute and the use of lignin and maleated PP (PPMAN) as modifi ers.nThe tensile and fracture mechanical characteristics of the composites were determined.nAnalysis of the emitted acoustic signals along with fractographic inspection served to tracenthe failure and damage development. The best property improvement was achieved bynusing PPMAN. The observed notch-sensitivity for the specimens was attributed to missingnreinforcement homogeneity owing to the presence of insuffi cient jute cloth layers.