A new generation of cable grade poly(vinyl chloride) containing heavy metal free modifier

Abstract Many additives are used to improve the performance of cables in terms increasing their flame retardancy, thermal stability, conductivity, and other characteristics. Unfortunately, most these contain heavy metals. Therefore, main objective this study is introduce a material representing new generation environmentally friendly metal-free stabilizers for cable grade poly(vinyl chloride) that can compete with traditional materials distinctive properties. This unique additive Oxydtron, synthetic silicate or simply nanocement. The tests performed rheological properties represented by capillary rheometry analysis, limiting oxygen index, volume resistivity. significant improvement Bagley correction measurements was 14.61%; 18.13%; 27.20% more than basic formulation when using 5wt.% Oxydtron at 160 °C, 170 180 respectively. Also, mean increases relaxation time were 3.200 times, 8.825 12.458 times 1wt.%, 3wt.%, Furthermore, lowered value accompanying gradient L.O.I test, reducing heat-affected zone. best result extrusion processing method due uniformity conditions. However, analysis showed residual heat stress test samples after cutting burning layer re-testing again; causes them burn faster. situation requires caution designs exposed high temperatures without burning. optimum resistivity 14.71% 38.24% adding 7wt.%