Effect of New Multifunctional Vulcanizing Agent WL207 on Propeties of NR/ESBR
The effects of a new multi-functional vulcanization agent WL207 on the co-vulcaniza-tion,dynamic mechanical properties and physical and mechanical properties of NR/ESBR blends were studied,and analyzed by scanning electron microscopy(SEM),dynamic mechanical thermal proper-ties(DMA),and differential scanning calorimetry(DSC).The results showed that the structural characteristics of multifunctional groups gave WL207 with both crosslinking and promoting effects.Compared with the traditional sulfur vulcanization system,the NR/ESBR co-vulcanization was a-chieved well,and the vulcanized rubber had excellent wet skid resistance,physical and mechanical properties,and good compatibility between fillers and rubber.When the dosage of WL207 was 4.0 phr,the comprehensive performance of NR/ESBR blends was the best.
new multi-functional vulcanization additive WL207natural rubberemulsion polysty-rene butadiene rubbercompatibilityco-vulcanization