PTTA is poly p-Phenylenediamine the two formyl, is one of the main varieties of Kevlar, aramid said China 1414, the species is another major Kevlar aramid 1313, the performance difference between the two larger. PTTA with high-volume, high-intensity, high temperature, radiation, corrosion-resistant properties.

PTTA the excellent performance and good fiber-forming properties, widely used in aerospace, automotive and military fields, is a relatively high technological content of the fiber varieties.