High performance and low floating fiber glass fiber-reinforced polypropylene composites realized by a facile coating method

In this work, we reported a kind of low floating fiber, high-performance composites which were prepared by means of mixing polypropylene and polybutylene-1/glass fiber masterbatch. The polybutylene-1/glass fiber masterbatch prepared by coating method made the surface of glass fiber covered by a thin resin, and the as-prepared composites displayed significantly higher shear thinning, higher interface bonding strength, and lower crystallization temperature. The results of scanning electron microscope and atomic force microscope showed that the coating process could effectively hinder the exposure of glass fiber. And, the composites at the PB-1 content of 10 wt% showed higher flexural strength (142.0 MPa) and tensile strength (69.6 MPa) than those for PP (41.3 MPa and 31.4 MPa, respectively). Moreover, the behavior of possible stacking arrangements inside the composites was inferred in this study.