Ultra-high-strength buoyancy material and preparation method thereof

Abstract

The invention discloses a method for preparing an ultra-high-strength buoyancy material. The method comprises the following steps of: a, adding 100 mass parts of epoxy resin, 25 to 35 mass parts of diluent and 5 to 10 mass parts of toughening agent into an autoclave, vigorously and uniformly mixing the mixture at the temperature of 60 to 75 DEG C, adding 4 to 8 mass parts of curing agent into themixture and uniformly mixing the mixture to obtain a high-strength epoxy resin; b, adding 18 to 44 mass parts of hollow microspheres pretreated by a silane coupling agent into 56 to 82 mass parts of the high-strength epoxy resin obtained in the step a and slowly and uniformly mixing the mixture; and standing, placing the mixture in a vacuum drying chamber for removing the air bubbles from the mixture and then casting the mixture in a mold for curing molding. The prepared ultra-high-strength buoyancy material has a density of 0.65 to 0.83g / cm<3> and compressive strength of up to 60 to 93MPa, and is suitable for a deepwater environment as deep as 6,000 to 9,000m.

Description

technical field [0001] The invention belongs to the technical field of high-strength buoyancy materials used in deep-water environments, in particular to a method for preparing ultra-high-strength solid buoyancy materials and the super-high-strength solid buoyancy materials prepared by the method and applicable to deep-water environments of 6000 to 9000 meters. Background technique [0002] With the rise and development of ocean development science, human beings are exploring the underwater world more and more, and the diving depth is getting deeper and deeper. There is an urgent need for buoyancy materials that can be applied to deep seas to ensure the safe use of deepwater equipment. [0003] At present, a few developed countries such as the United States, Japan, and Russia have solved the technical problem of using buoyancy materials for 6,000 meters underwater. However, these high-end foreign technologies have basically set up barriers to my country. The large-depth buoya...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiency that existing domestic buoyancy materials cannot meet the strength requirements of 6,000-10,000 meters underwater, the invention provides an ultra-high-strength solid buoyancy material and its preparation method