Hyperbranched polymer: Rheological modifier and the compatibilizer for the glass fiber reinforced polyamide 6 syntactic foam composite

초록

?To apply the lightweight materials in the industry, the improvement of both mechanical strength and the processability of the material are important factor as well as specific gravity. ?Hollow glass microsphere (HGM) could decrease the specific gravity of the composite material, and Glass fiber (GF) could enhance mechanical strength of the composite. ?However, when the HGM and GF are added to the polymer composite, viscosity of the composite is increased and HGM is significantly broken in the high shear extrusion process. ?Thus, we applied the hyperbranched polymer (HBP) as a lubricating agent and as a compatibilizer of the composite material.