PVC heat stabilizers tribasic acid leaden take process (a)

Because PVC heat stabilizers tribasic lead sulfate extraction, the process is more complex, factors affecting more detailed description of an article can not be and are hereby removed all the  n-butyl stearate details on this, give us representations about. Here to tell you the amount of coating under tribasic lead sulfate on the thermal stability. The amount of coating on the thermal stability time have a significant effect, as coating amount from 40% to 55%, thermal stability extended from 59 minutes to 73 minutes, that the thermal stability of the coated lead salt in the  potassium stearate coating at this stage proportional, with the coating increases, the thermal stability is slightly increased, from 73 minutes to 75 minutes, the growth rate slowed significantly. Subsequently, from the thermal stability as the coating amount hardly increases, when the coating amount to 50%, from the thermal stability has been reached after 71 minutes and tribasic lead sulfate heat stabilizer stabilization time 72 minutes already quite.
Of PVC stabilizer in the  plastic flame retardant capture HCl process, the diffusion process of closing, when the coating amount reaches the top coating, in the form of a stabilizer in the best condition to capture HCl HCl its ability to capture even more than tribasic lead sulfate, when more than the optimum amount, many of the stabilizing agent is masked in the surface stabilizer, and the surface after the formation of PbCl2 capture HCl salt stabilizing function and thus can not, therefore, even if increasing the amount of tribasic lead sulfate, the stable Function difficult to continue to grow.