Low-density solid buoyancy material and preparation method thereof

The invention relates to the technical field of buoyancy materials, in particular to a low-density solid buoyancy material and a preparation method thereof.The buoyancy material is obtained by evenly mixing modified EPS, a matrix and basalt fibers and conducting curing forming; the matrix is prepared by mixing hollow glass microspheres, epoxy resin and a curing agent, the modified EPS is composed of an EPS core layer and a wrapping layer, and the wrapping layer is prepared from epoxy resin, an amine curing agent and hollow glass microspheres. The hollow glass microsphere-EHS is added into the epoxy composite foam, so that the density of the material is reduced, and the compression resistance of the material is not greatly reduced. The BF-ESF with low density and certain compression resistance is prepared by adding a certain amount of basalt fiber with a certain length into the ESF. 本发明涉及浮力材料技术领域，具体涉及一种低密度固体浮力材料及其制备方法，通过将改性EPS、基质以及玄武岩纤维均匀混合并固化成型得到浮力材料；所述基质采用中空玻璃微球、环氧树脂及固化剂混合制成，所述改性EPS为由EPS核层以及包裹层构成，所述包裹层采用环氧树脂