Study On The Effect Of P-phenylenediamine Implantation On The Properties Of Nitrile Rubber

Polymer materials have excellent mechanical and thermodynamic properties,anti-friction and wear characteristics,and are inexpensive.They are widely used in science and technology fields such as agriculture,petrochemicals,marine,machinery industry,and aerospace.However,in the application of polymer materials,they are often subjected to the coupling effects of high temperature,high pressure,abrasive wear and other complex factors,leading to premature fracture and wear failure of the base material,shortening the service life of the equipment and causing a lot of economic losses.Therefore,it is of great significance to explore the failure mechanism of polymer materials and study and improve their mechanical properties.At present,the technical means of mixing traditional reinforcement systems such as carbon black,white carbon,and fiber are widely used.Different types of reinforcements and different content will affect the reinforcement ability of polymer materials.This article takes submersible screw pump oil extraction as an example,aiming to reveal the microscopic mechanism of different contents of reinforcing agents to enhance the mechanical and thermodynamic properties of the polymer matrix from the microscopic dimension,and explore the methods and means to improve the performance of the polymer matrix.Using Materials Studio software,a molecular model of p-phenylenediamine as a reinforced polymer matrix was constructed,and the macroscopic performance of nitrile rubber material was simulated and analyzed using molecular dynamics methods.The elasticity,shear modulus,tensile strength,hardness,and fracture properties of the molecular matrix have been effectively improved.Carry out the simulation simulation in the thermal oxygen environment and the crude oil environment separately.Through the calculation and statistics of the microscopic information such as the radial distribution function,glass transition temperature,mechanical properties,etc.,discuss and reveal the different content of p-phenylenediamine The difference in the mechanical properties of the molecular matrix.The study found that the addition of p-phenylenediamine improved the tensile strength,ductility and plastic strength of the polymer matrix.However,when the content reached a certain level,the characteristics of the rubber material did not change significantly.According to the data obtained,it can be determined In a certain environment,nitrile rubber can obtain the desired amount ofreinforcing agent to be added.The research work of the thesis is based on the calculation of continuous theory and microscopic simulation analysis as the main methods and approaches.Through the comparison of theory,simulation and experiment,the correctness of the theoretical model is verified.