Enhancing Physical and Mechanical Properties of SBR/NR Blends by Adding Nanoparticles

Nano- composite compounds based on natural rubber and styrene butadiene (NR /SBR) combined different percentages as 4/5, 5 and 6/5 phr Nano clay were prepared. Effects of Nano clay composition on the mechanical and dynamical properties, morphology and rheological properties were studied. Rheometer test was used to determine the curing time (t90) and safety time (t5), study the morphology and rheological behavior of the Nano composite compounds. Results obtained from rheometer test showed that with increasing the amount of Nano clay particles curing time and the safety time of the compound are reduced. This decline for NR/SBR is as much as 40% percentages. This effect according to the modified ammonium phosphate nanoparticles as well as are justified and expressed. The phosphate compound in the curing reaction participates and has accelerated role. The results of the tensile test showed that opening stretch layers of silica and diffusion chain polymer into theme. The test results show that adding 5 phr nanoparticles compound modulus in NR/SBR has a twice increasing. As the information nanoparticles used is the fully unlocked. Tensile test, increased elastic modulus and viscosity with increasing clay nanoparticles showed. This can be due to the higher surface area and better interaction with clay nanoparticles and the matrix substrate attributed crosslinking density. As well as other mechanical properties such as compression set and hardness tests show that the nanoparticles due to their high surface area polymer have very good interaction with together. Increase in compression set testing about 50% in NR/SBR combination was observed. The hardness test was observed with increase nanoparticles in the first increases the hardness and then decreased. Nano-Composite construction by XRD tests were approved, in NR/ SBR combination no peak was observed in samples of 2 thetas. In this work, in accordance we can remove 40 phr Carbon black. That substance in terms of environmental pollutions by constructing of Nano composites was only 5 phr adding Nano particles to a polymer system also saw a significant increase in anti- tear properties in tire. In addition the mechanical properties of Nano composites are increased.