Weight change and AFM study on Al (OH)_3 particle/vinylester composite under hydrothermal environment

摘要

This study dealt with the weight change and atomic force microscopy on aluminum hydroxide particle/vinylester composites under hydrothermal environment. The particles treated by different concentration of silane solution were used as filler. The composite plates were immersed in hot water, and the weight gain due to water absorption and the weight loss due to dissolution of material were measured. In addition, change of surface condition due to immersion was observed by atomic force microscopy. Silane concentration affected the weight change behavior only at longer immersion time, and the higher concentration of silane solution reduced the increase of weight changes. The surface of the plates became rough due to immersion, however, it became flat after further immersion. The change of surface condition due to immersion was also prevented by higher silane concentration for surface treatment.