| Abstrakt: |
Epoxy resin/hollow glass beads-chopped basalt fiber (EP/HGM-CBF) composite foam materials with different fiber mass fractions of CBF were prepared. The effects of the solution corrosion environment on the compression properties of the specimens were investigated by immersing the composite foam material specimens in distilled water, seawater, and seawater with five times the concentration of the compounds, and the causes were analyzed by combining scanning electron microscope photographs and EDS energy spectrometry. The study shows that the moisture absorption rate of the specimen first increases and then decreases with the increase of fiber mass fraction, and the moisture absorption rate is the largest at 10% fiber mass fraction, and the moisture absorption rate is larger in distilled water than in seawater, and the increase of the particle concentration in the solution decreases the diffusion coefficient of the solution. In the solution-immersed corrosive environment, the compression properties of EP/HGM-CBF composite foams all increased with the increase of CBF mass fraction, and reached a maximum when the CBF mass fraction was 30%, and the greatest increase in compression strength and compression modulus was seawater with five times the concentration of the compounds, and the compression strength was increased by 28.4% compared with that of the specimens without CBF. The solution corrosive environment decreased the compressive mechanical properties of the specimens, and the damage forms of the composites were different in the distilled water and seawater environments; the distilled water environment was mainly physical damage such as the dissolution of resin leading to interfacial debonding, whereas the seawater environment was mainly chemical damage due to the dissolution of the interfacial structure by elemental Cl. [ABSTRACT FROM AUTHOR] |
