Cars with high strength polyester industrial yarn and preparation method

The present invention relates to a high strength polyester industrial yarn car model and its preparation method, the high strength polyester industrial yarn from a polyester Cars wash solution, spinning the obtained solid tackifier, the high strength polyester industrial yarn at a temperature of Cars for the next 177 ℃ × 10min × 0.05cN / dtex, test conditions, a dry heat shrinkage rate of fibers 6.0 ± 0.5%, a breaking strength of fibers of high strength polyester industrial yarn Cars ≥7.7cN / dtex, using ethylene glycol magnesium and mixtures of ethylene glycol as a polycondensation catalyst of antimony, a small coefficient of thermal degradation, but also reduces the amount of nucleating agent in the polyester, increasing the probability of homogeneous nucleation of heterogeneous nucleation on the basis of the reduction, melting washing the oligomer content is further reduced, it is conducive to growth and improve the crystallinity of the optimization of high strength polyester industrial yarn Cars grain size fibers. Cars high strength polyester industrial yarn because of its high strength, low shrinkage, excellent impact resistance, good dimensional stability and heat stability.