Preparation method of high-impact-resistance solid buoyancy material

Abstract

The invention provides a preparation method of a high-impact-resistance solid buoyancy material. The high-impact solid buoyancy material disclosed by the invention improves the impact resistance of the solid buoyancy material by using irradiation-crosslinked maleic anhydride grafted ultrahigh-molecular weight polyethylene micrometer particles as a flexibilizer. An impact-resisting modifying agent, together with epoxy resin, a curing agent, a catalyst, a coupling agent and hollow glass beads, is processed to prepare the high-impact-resistance solid buoyancy material. The two prepared solid buoyancy materials can be suitable for sea depths of 1000 m and 3000 m, and the impact strength is increased by 60% or higher than that before adding the impact-resisting modifying agent. The invention further provides a preparation method of the high-impact-resistance solid buoyancy material.

Description

technical field [0001] The invention relates to a solid buoyancy material with high impact strength, in particular to a solid buoyancy material with high impact strength suitable for providing buoyancy for marine development equipment such as offshore oil exploitation risers and underwater operation submersibles. Background technique [0002] The solid buoyancy material technology organically combines the low-density and high-strength properties of the material, making it incomparably superior in the field of ocean development technology. Solid buoyancy materials have been applied to (1) deep-sea transportation and operation equipment such as China's "Jiaolong" 7000m deep submersible, China's "CR-02" self-made underwater robot, (2) offshore oil exploitation systems Such as risers, oil pipelines, (3) marine survey and detection systems such as submersible marking systems, (4) marine mining systems such as seabed mining machines and other fields. The solid buoyancy material m...

AI Technical Summary

Problems solved by technology

[0003] However, solid buoyant materials are prone to collision and impact during handling, installation and use after production, so the impact resistance of the material needs to be improved

Invention patent CN02135509.6 "Spray polyurea coating for solid buoyancy materials" uses the method of spraying polyurea coating to improve the impact resistance of materials. Although this method is simple, it needs to increase the construction process.