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Preparation and application method of volume-expandable solid buoyancy material

A technology of solid buoyancy and volume, applied in the field of preparation of solid buoyancy materials, can solve the problems of smaller overall size and affect the application effect, and achieve the effect of controllable degree of expansion, controllable volume expansion and expansion of application range.

Inactive Publication Date: 2018-12-25
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this application method, the solid buoyancy material will inevitably shrink in volume during the curing process, and the overall size will become smaller. The shrinkage rate is generally between 0.1% and 2%, which will affect the application effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 100g of E51 epoxy resin, 10g of N-aminoethylpiperazine and triethylenetetramine curing agent, 2g of N-glycidyldiethylamine reactive diluent, 0.1g of DMP-10 catalyst, BYK-A530 defoamer 0.1g, carbon black thixotropic agent 0.1g, hollow glass microspheres (3M company K1) and hollow polymer microspheres (Matsumoto F-20) lightweight filler 5g, mix in the reaction kettle, after stirring at high speed for 20min, vacuum Degassing, keep the vacuum degree -0.1MPa, pour it into a disposable plastic cup after degassing for 10 minutes, heat at 90°C, completely solidify after 12 hours, and the final volume can expand to 1.5 times the volume before heating and curing.

Embodiment 2

[0026] Weigh 10g of TDE-85 and E44 epoxy resin, 6kg of 3,3'-diethyl-4,4'-diaminodiphenylmethane and 3-ethyl-4,4'-diaminodiphenylmethane curing agent , 1g of 2,2'-dioxirane reactive diluent, 0.1g of DMP-30 catalyst, 0.1kg of defoamer, 0.1kg of fumed silica thixotropic agent, hollow polymer microspheres (Matsumoto F-82 ) 4g, mix in the reaction kettle, stir at high speed for 20min, vacuum defoaming, keep the vacuum degree -0.1MPa, pour into the mold after defoaming for 10min, heat at 160°C for 3h, the final volume can expand to the volume before heating and curing 2 times.

Embodiment 3

[0028] Weigh 100g of CYDF-170 epoxy resin, 50g of polyetheramine curing agent D400 and triethylenetetramine curing agent, 2g of N-glycidyldiethylamine reactive diluent, 1g of nonylphenol catalyst, BYK-A530 defoamer 0.1g, meteorological organic bentonite modifier 1g, hollow glass microspheres (3M company XLD3000) and hollow polymer microspheres (Matsumoto F-78K) light filler 20g, mixed in the reaction kettle, after stirring at high speed for 20min, vacuum degassing Bubble, keep the vacuum degree -0.1MPa, defoam for 10 minutes, pour into a disposable plastic cup, heat at 120°C, completely solidify after 12 hours, and the final volume can expand to 3 times the volume before heating and curing.

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PUM

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Abstract

The invention provides a preparation and application method of a volume-expandable solid buoyancy material. The preparation and application method of the volume-expandable solid buoyancy material comprises the following steps adding epoxy resin, a curing agent, a catalyst, a thixotropic agent and a silane coupling agent in a high-speed stirrer, carrying out dispersion at high speed and uniformly stirring; adding light packing in 5-10 times, dispersing the components by using a high-speed disperser, and adjusting the volume expansion degree through the type and use amount of the light packing;pouring a pouring material which is dispersed uniformly in a vacuum defoaming barrel, opening a vacuum pump, enabling the vacuum degree in the vacuum defoaming barrel to reach minus 0.1 MPa, and maintaining for 5-10 min; and placing the material in a mold or a filling portion and carrying out heating and curing. The volume-expandable solid buoyancy material is placed in the mold or the filling portion, and is heated and cured. The buoyancy material prepared by the method is controllable in density and low in water absorption, is controllable in volume expansion in a curing process, and can beused for manufacturing some marine equipment with complicated structure and difficulty in filling such as submersible vehicles in deep sea, moreover, the production method is simple, and the cost is low.

Description

technical field [0001] The invention relates to a preparation method of a solid buoyancy material, and also relates to an application method of the solid buoyancy material. Background technique [0002] The deep sea contains rich mineral deposits and biological resources. Deep sea exploration and development has become an important frontier and focus of marine technology development in the 21st century. Deep-sea ocean development is inseparable from deep-sea equipment. For deep-sea equipment, high-strength epoxy-based solid buoyancy materials used for buoyancy compensation are one of the most important universal materials. The high pressure resistance, low density and low water absorption of buoyant materials are the key to current deep sea technology. At present, the traditional solid buoyancy material preparation method is as follows: after the matrix resin is mixed with light filler, it is poured into a mold, heated and solidified, and after the buoyancy material is soli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K7/28C08J9/32
CPCC08J9/0066C08J9/32C08J2203/22C08J2363/00
Inventor 李瑞魏浩欧阳肖张智嘉孟祥琦高闪马宁张馨月王国军王强
Owner HARBIN ENG UNIV
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