Low-density high-strength solid buoyancy material and preparation method thereof

Abstract

The invention discloses a low-density high-strength solid buoyancy material and a preparation method thereof, belongs to the field of solid buoyancy materials for marine environments, and can be used for marine submersible buoys, marine drilling platforms, various deep submergence vehicles, seabed space stations and the like. The low-density high-strength solid buoyancy material comprises the following raw materials in parts by weight: 100 parts of epoxy resin, 0-20 parts of a toughening modification agent, 10-80 parts of a curing agent, 0.5-5 parts of a catalyst, 0.2-10 parts of a dispersion agent, 10-200 parts of micron hollow glass beads, 10-150 parts of millimeter hollow glass beads and 0.2-5 parts of a coupling agent. The preparation method comprises the following steps: adding the accurately weighed raw materials into a kneading machine, heating to 80-100 DEG C, and stirring for 30 minutes at a uniform speed to obtain a mixture; taking out and putting the mixture into a mould, compacting, putting on a pressure curing machine, pressing, heating and deflating, curing for a certain time, and shaping to prepare a buoyancy material standard module. The low-density high-strength solid buoyancy material is used for solving the problem of higher density of a solid buoyancy material and increasing the net buoyancy of the solid buoyancy material.

Description

technical field [0001] The invention belongs to the technical field of solid buoyancy materials for marine environments, and relates to a low-density, high-strength solid buoyancy material and a preparation method thereof. Background technique [0002] The solid buoyant material is a solid compound obtained by chemically reacting inorganic filling materials into organic polymers. Solid buoyancy materials have been widely used in composite structural parts of submarine space stations, deep-water pipeline deployment buoys, remote-controlled underwater vehicles (R0V) with cables, AUVs without cables, mooring buoys, and acoustic Doppler velocity profilers. (ADCP) platforms, offshore drilling platforms, various deep submersibles, submarine space stations and other fields. The material has the characteristics of low density, corrosion resistance, low water absorption (less than 1%), high mechanical strength, excellent impact resistance, and can be machined and surface treated. Wh...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem of high density of epoxy buoyancy material reinforced by glass microspheres, the present invention proposes to use the blending of millimeter-sized hollow glass spheres and micron-sized hollow glass microspheres as a reinforcing material for solid buoyancy materials, providing a low-density high-strength Solid buoyant material and method for its preparation