This paper examines the microstructure and macroscopic physical and mechanical properties of carbon black of the same grade(N550)that is produced using three different processes.The study uses scanning electron microscopy(SEM)and transmission electron microscopy(TEM)to analyze the microstructure and particle size distribution of three kinds of carbon black aggregates.The study compares the differences in microstructure and dispersion state of the three types of carbon black;and investigates the variations in physical and mechanical properties in EPDM and processing properties of products.The research results indicate that carbon black with smaller particle size has lower degree of adhesion between primary particles,better dispersion and reinforcing effect,good fluidity of rubber material,and lower energy consumption during processing.
关键词
炭黑/微观结构/三元乙丙橡胶/物理机械性能/分散性/补强效果
Key words
carbon black/microstructure/ethylene-propylene diene monomer/physical and mechanical propertiys/dispersibility/reinforcing effect