Made of polyurethane foam material buoy material, cost can be very good control, but its application range is limited by performance, can only be used in underwater 200 meters, and must have other material package to ensure its completely isolated with wa

1, and the polyurethane foam

Made of polyurethane foam material buoy material, cost can be very good control, but its application range is limited by performance, can only be used in underwater 200 meters, and must have other material package to ensure its completely isolated with water, because of its water absorption, such as long direct contact with seawater, under the action of water pressure material water absorption, deformation lead to buoyancy drop.

2, and the copolymer foam

The cross-linked copolymeric foam body is a hard closed-hole foam body, which is completely closed under the seawater static pressure. Has the advantage of simple processing, only this kind of low density copolymer hard foam is suitable for short-term application, cannot be applied to continuous static pressure load environment for a long time, will occur plastic creep, deformation or volume reduction and reduce buoyancy.

3, composite foam plastic

It is a new type of solid buoyant material that can maintain sufficient strength at very low density, and has the characteristics of high compressive strength to weight ratio, low creep and low water absorption, which can provide buoyancy for deeper sea area equipment. The low density of this material is mainly due to the large number of hollow glass beads in the matrix material, and the surface of these microbodies is optimized and tightly fused with the matrix material to enhance the material properties. It can be used in the seas at various depths.