The acoustic insulation property of flexible PVC resin film

In order to study the acoustic insulation property of the flexible resin film,a serial of flexible PVC resin films with different areal density were prepared with raw materials of E-PVC resin,tributyl citrate(TBC) and epoxidized soybean oil(ESO).The acoustic insulation property and the flexibility of the developed films were evaluated.The sound reduction indexes of the films were compared with the traditional mass-law.The results showed that the average sound reduction indexes of the flexible PVC resin films had a linear relation with the logarithm of areal density and its trend was similar to the masslaw but with different slope coefficients and intercept.