) ternary composite was prepared by solid state shear milling and then micro-injection molded.The microinjection molding (μIM) processing window
the factors that affect the filling behavior in the μIM process as well as the replication performance of the POM/PEO/SiO
2
composite micropart were studied. The experimental results indicated that the POM/PEO/SiO
2
system showed excellent μIM processability. The micropart with good replication was obtained according to the μIM processing window. The filling time was very short and the cooling speed was extremely high for the composite melt in the μIM process. The injection speed and the mold temperature had pronounced effect on the filling behavior of the melt. However
the effect of nano-SiO
2
on the filling behavior was not obvious due to the low nano-SiO