studied. The objective was to study the effect of modified calcium silicate (CS) with
vinyltriethoxysilane (VTES) on the melt spinning of PET fibers. The CS was modified with
VTES (2% v/v) in diethyl ether at room temperature for 24 h. The modification of CS with
VTES improved agglomeration of CS, hydrophobic, and heat‐resistance properties. These
properties were expected that modified CS could be used as the filler in melt spinning of …