Solid buoyancy material prepared through chemical blowing process

A solid buoyancy, core material technology, used in underwater operation equipment, ships, transportation and packaging, etc., can solve problems such as lack of machinability, and meet the requirements of strength-density ratio, high compressive modulus and strength. Effect

Inactive Publication Date: 2005-01-12
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Chinese patent CN85106037A introduces a kind of buoyancy material, which is to use the hollow glass microspheres extracted from the waste fly ash of the power plant as the basic raw material, the epoxy hollow spheres formed by epoxy resin and the reinforcement coated on the epoxy hollow spheres. The outer wall composition, the disadvantage of this kind of buoyancy material is that it does not have machinability

Method used

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  • Solid buoyancy material prepared through chemical blowing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0040] Formula (parts by weight)

[0041] Formula (parts by weight)

[0042] diaminoxylene

Embodiment 4

5

Hardness (Shore A)

97±2

[0048] Since the structure of the solid buoyancy material is in the form of a core material composite surface material, and the surface material is added with phosphorus flake fillers due to the need for water blocking, the relative density is relatively high. Therefore, the core material is required to reduce its own density as much as possible on the premise that the compressive strength is not less than 5.5Mpa to ensure that the overall density is ≤0.33g / cm 3 requirements. The table below investigates the mechanical compressive strength of the core material in the direction of foam lift as a function of the density value.

[0049] Sample No

Density g / cm 3

Compressive strength Mpa

1

0.40

10.25

2

0.39

9.66

3

0.327

7.18

4

0.316

6.99

5

0.34

10.48

6

0.31

7.90

7

0.30

7.83

8

0.241

...

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Abstract

A solid floatage material is copmosed of core material and surface material of which the core material is made of hard foamed plastic of polyurethane-epoxy and the surface material is water-resisting layer made of epoxy, polysulfide rubber, flaky packing, light packing, coupling agent and curing agent.

Description

technical field [0001] The invention relates to a solid buoyancy material, which is applied to the development of underwater marine technology, such as underwater robots or unmanned submersibles for observing, photographing, measuring, sampling and setting up necessary instruments and facilities in the deep sea. Background technique [0002] With the rise of marine development science, human beings began to explore, inspect and develop the deep sea, using manned or unmanned submersibles to directly observe, photograph, measure, sample, and set up necessary instruments and facilities in the deep sea. and other deep diving techniques. In order to provide sufficient net buoyancy for deep-diving drag bodies, deep submersibles and underwater robots, people began to develop high-strength solid buoyancy materials to replace traditional pressure-resistant buoyancy balls and buoyancy cylinders. Solid Buoyancy Material (Solid Buoyancy Material referred to as SBM) is an important part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63C11/00C08G18/48C08G18/72
Inventor 陈先张树华卢伟何勇宋晓波崔显林刘东晖
Owner MARINE CHEM RES INST
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