The method can be extended to analyze other additives in AC blowing agent system whose various standard spectra are absent.

Meanwhile several additives affect on decomposition properties of blowing agent H, blowing agent AC, blowing agent OBSH is inquired into in this article.

The viscosity of PVC decreases and the liquidity increases with the addition of the AC blowing agent increasing. The viscosity will increase when the addition is more than 0.8 phr.