The Effect of Modified Nano Silica/Carbon Black on Squeezing Roll Covering Performance of The Steel Sheet Based on NR/SBR

The squeezing rolls of steel pickling are concerned due to hard working conditions such as acidity and high pressure. In this study, is devoted to the investigation on the use of nano silica particle on the mechannical properties of NR/SBR compound. A reference compound was first designed in wich 60 phr carbon black was used as the reinforcing filler. Six sample based on this compound were prepard using two different types of nano silica with 8 and 13 percent of coupling agent. The mechanical and curing peroperties were measured on appropriate samples made frome these compound to determine tensile strength, elongation at brake, abrasion resistance, hardness, Tear resistance, compresion set and rheometery parameters. The results indicated that the compound containing NS.V3.NOP nano particle due to lack of any modifier has the lowest tensil and abrasion resistance. To achieve improvement in mechanical properties, modified nano-silica (NS.V3.13P, NS.A4.13P)were usedand best results (high tear resistanse, high abrasion resistance and high tensile strength) were obtained.The results obtained of Squeezing roll performance which is produced with compound including nano silica indicated significant improvement with double longevity that were confirmed the result of experiments.