anionic compound การใช้

• Abstract : molecular deposition ( md ) film , a nano film , is assembled by the interaction of static charge between cationic and anionic compounds . the micro - friction properties of an md film on silica has been studied with atomic force microscope ( afm ) . it has been found that the md film has lower coefficient of friction as compared with the original surface of silica . moreover , based on the analyses of the surface force versus distance curves , photographic image , friction force image , and modulated force image , it is concluded that the friction reduction effect of md film on silica is attributed to the surface adhesion reduction and surface micro - modification