会社のニュース Reiterating the Floating Fiber Issue in Glass Fiber-Reinforced PC

  Glass fiber-reinforced PC faces challenges like high viscosity-induced filling issues, uneven mixing, and surface defects. The “floating fiber” problem remains a key concern in injection molding, affecting product appearance. During molding, differences in density and flow between glass fibers and PC resin cause separation. Lighter fibers surface under flow shear, creating white marks. Shear from processing equipment further reduces melt viscosity, weakening the fiber-resin bond and promoting fiber exposure. Addressing this requires optimized processing to maintain viscosity and interfacial adhesion.