A novel epoxy resin (EP)/hollow glass microsphere modified composite was successfully prepared.
Studies showed that the water absorption rate of the g-hollow glass microspheres/EP composite is lower than pure hollow glass microspheres/EP and hollow glass microspheres-KH550/EP composites, while the compressive strength of g-hollow glass microspheres/EP composites could be increased.
The enhanced interfacial adhesion between EP and g-hollow glass microspheres played an important role to improve the compatibility of the two components. The g-hollow glass microspheres show little effect on density (relative to hollow glass microspheres) on the g-hollow glass microspheres/EP composites, which can perform better than the hollow glass microspheres/EP composites being used in marine environments.
It was found that the optimal content of 4,4’-diphenylmethane diisocyanate in the epoxy component was 20 wt%.
