Polypropylene/polyamide 6/polypropylene-g-maleic anhydride blending monofilaments: Effects of quench temperature

摘要

We describe the effects of quench temperature on the structure and mechanical properties of polypropylene/polyamide 6/polypropylene grafted maleic anhydride (PP/PA6/PP-g-PAH) blend monofilaments. The monofilaments were prepared by melt-spinning under different quench temperatures. The thermal properties were investigated by Differential scanning calorimetry (DSC) and the morphologies were observed using Scanning electron microscope (SEM). We measured the tensile strength, the loop strength, and the elongation at break of the monofilaments. Results demonstrated that the quench temperature had strong effects on the structure and mechanical properties of the PP/PA6/PP-g-MAH blend monofilaments. With the decrease of quench temperature, the tensile strength and the loop strength of the blend monofilaments increased obviously, which could be attributed to the different crystallization processes and orientation structures induced by changing quench temperatures.