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A kind of high-performance solid buoyancy material and preparation method thereof

A solid buoyancy, high-performance technology, applied in the field of buoyancy materials, can solve the problems of reducing the performance of solid buoyancy material products and the damage of hollow glass beads

Active Publication Date: 2022-03-18
TAIZHOU CBM FUTURE NEW MATERIALS S & T CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high viscosity of epoxy resin and the brittle nature of hollow glass microspheres, hollow glass microspheres often break during the stirring process, which reduces the performance of solid buoyancy material products

Method used

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  • A kind of high-performance solid buoyancy material and preparation method thereof

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Experimental program
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Effect test

preparation example Construction

[0028] The present invention provides a kind of preparation method of high-performance solid buoyancy material described in the above-mentioned technical scheme, comprises the following steps:

[0029] a) mixing dicyclopentadiene, ruthenium carbene complex catalyst, silane coupling agent and polymerization inhibitor to obtain a mixture;

[0030] b) adding hollow glass microspheres to the mixture and stirring to obtain a liquid buoyant material;

[0031] c) Vibrating the liquid buoyancy material for 5min to 24h, so that the material is divided into three layers, the bottom layer is the sinking glass beads, the middle layer is the redundant liquid material and the upper layer is the intact glass bead material containing close packing;

[0032] d1) heating and solidifying the layered material, and cutting off the bottom layer and the middle layer material to obtain a high-performance solid buoyancy material;

[0033] Or d2) after discharging the bottom layer and the middle layer...

Embodiment 1

[0043] 1) Introduce 18kg of dicyclopentadiene, 0.4kg of ruthenium carbene complex catalyst, 0.2kg of trimethoxysilane coupling agent and 2kg of acetone into a mixer, and stir evenly in a vacuum environment.

[0044] 2) 4 kg of hollow glass microspheres with a true density of 0.15 g / cc, a crush strength of 2.0 MPa, and a median diameter (D50) of 50 to 60 microns are introduced into a mixer, and prepared in step 1) under a vacuum environment The liquid components are stirred well.

[0045] 3) The liquid buoyancy material prepared in step 2) is introduced into a mold whose internal dimensions are 400mm wide, 500mm long, and 300mm high; the mold is placed on a vibrating platform and vibrated at a frequency of 1 Hz for 30 minutes.

[0046] 4) Move the mold into an oven, heat it to 60°C and keep it warm for 6 hours to volatilize the acetone; then heat it to 120°C and keep it warm for 3 hours to completely cure the material.

[0047] 5) Take the cured buoyant material out of the mol...

Embodiment 2

[0051] 1) Introduce 100kg of dicyclopentadiene, 1.7kg of ruthenium carbene complex catalyst, 1.0kg of tetrakis(2-methoxyethoxy)silane coupling agent and 70kg of styrene into a mixer, and stir evenly in a vacuum environment.

[0052] 2) 110kg of hollow glass microspheres with a true density of 0.46g / cc, a crushing strength of 110MPa, and a median diameter (D50) of 15 to 30 microns are introduced into the mixer, and prepared in step 1) under a vacuum environment Stir liquid components until smooth.

[0053] The liquid buoyancy material obtained in step 2) is imported into a mold whose internal dimensions are 800mm wide, 1200mm long, and 600mm high; the bottom of the mold has a through hole, and the through hole is connected with a valve;

[0054] 3) Place the mold on a vibrating platform and vibrate at a frequency of 15 Hz for 12 hours.

[0055] 4) Open the valve at the bottom of the mold to discharge the sinking damaged glass beads and excess liquid material.

[0056] 5) Move...

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Abstract

The invention provides a high-performance solid buoyancy material and a preparation method thereof. The solid buoyancy material comprises the following components in parts by weight: 40-70 parts of dicyclopentadiene, 0.2-5.0 parts of ruthenium carbene complex catalyst, 0.2-5.0 parts of silane coupling agent, 5-40 parts of polymerization inhibitor and 20-60 parts of hollow glass microspheres. The solid buoyant material provided by the present invention has the characteristics of low density, high strength and low water absorption under the joint action of the above components, and is suitable for extremely demanding application scenarios such as manned submersibles.

Description

technical field [0001] The invention belongs to the technical field of buoyant materials, in particular to a high-performance solid buoyant material and a preparation method thereof. Background technique [0002] Compared with general solid buoyancy materials, solid buoyancy materials used in manned submersibles have higher performance and reliability requirements. For example, the solid buoyancy material used in manned submersibles requires its compressive strength to be more than 1.5 times the working water pressure, and the 24-hour water absorption rate under the working water pressure is not more than one thousandth; The compressive strength of the solid buoyancy material of the lower robot only needs to be greater than 1.25 times of the working water pressure, and the 24-hour water absorption rate under the working water pressure is not more than 1%. At the same time, due to the larger load and more limited space of the manned submersible, solid buoyancy materials with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F132/08C08F2/44C08K7/28C08K5/5419
CPCC08F132/08C08F2/44C08K7/28C08K5/5419C08K2201/003
Inventor 刘刚
Owner TAIZHOU CBM FUTURE NEW MATERIALS S & T CO LTD