Glass Fiber Fabric Reinforced PP Foam

In-situ impregnation with scN

Using supercritical nitrogen to reduce melt viscosity enables direct in-mold impregnation of glass fiber fabric by polypropylene, producing lightweight microcellular composite foams.

Yang, Weimin · Wang, Jian · Ren, Feng · Da, Wang · Shi, Zhonghe

Polymers 2023

Advantages

Unfoamed GFF/PP shows lower specific tensile strength than solid PP

Tensile strength of GFF/PP composite foams is increased

SCN decreases viscosity, benefiting direct in-mold impregnation of GFF

Increasing temperature improves interfacial bonding but decreases tensile strength