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Method for preparing water sound absorption polymer composite material

A composite material and polymer technology, applied in the field of ships, can solve the problems of poor adhesion and easy falling off, and achieve the effect of improving the sound absorption effect of underwater sound.

Inactive Publication Date: 2019-07-12
于庭富
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0021] The technical problem to be solved by the present invention: Aiming at the problem that the sound absorption performance of the anechoic tile in the prior art still needs to be further improved, the adhesion between the rubber and the hull is poor, and it is easy to fall off, an underwater acoustic tile is provided. Preparation method of sound-absorbing polymer composite material

Method used

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  • Method for preparing water sound absorption polymer composite material

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Embodiment Construction

[0043] In terms of parts by weight, weigh 20-30 parts of nano-zinc oxide powder, 100-150 parts of toluene, and 10-15 parts of vinyltriethoxysilane, add nano-zinc oxide powder into toluene, and heat at 50-60°C Under the condition of a water bath, stir and disperse at 600~700r / min for 30~40min, then place it in an ultrasonic disperser, and disperse ultrasonically for 20~30min under the condition of 400~500W to obtain a dispersion liquid. Vinyltriethoxysilane Slowly add to the dispersion at a rate of 20-30mL / min, stir and react at a speed of 200-240r / min in a water bath at 60-70°C for 10-12 hours to obtain a reaction solution, and place the reaction solution in a centrifuge , centrifuge at 3000~3500r / min at room temperature for 10~15min, remove the lower layer of solid, wash with absolute ethanol for 3~5 times, and then put it in a vacuum dryer at 60~80℃, 200~300Pa Vacuum dry for 1~2h to obtain modified nano-zinc oxide powder, and then weigh 100~120 parts of polypropylene glycol,...

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Abstract

The invention relates to a method for preparing a water sound absorption polymer composite material and belongs to the technical field of ships. According to the method, the water sound absorption polymer composite material is prepared from modified nano zinc oxide and glycerol, because of modification of vinyl triethoxy silicon, nano zinc oxide has a great amount of hydroxyl on the surface, the glycerol and the modified nano zinc oxide with the hydroxyl are uniformly dispersed into a substrate, polar functional groups of polymer macromolecules, and the hydroxyl non the surface of the glyceroland the nano zinc oxide form a hydrogen bond network structure penetrating through the substrate, the hydrogen bond network structure is easily damaged and reformed under the action of an external force field and a temperature field, then a great deal of energy can be absorbed, very high mechanical consumption can be resulted, energy in sound waves can be effectively absorbed, and the water soundabsorption effect of a material can be improved.

Description

technical field [0001] The invention relates to a method for preparing an underwater sound-absorbing polymer composite material, which belongs to the technical field of ships. Background technique [0002] A submarine is a ship that can navigate both on the water surface and at a certain depth underwater and carry out combat activities. Submarines rely on filling and displacing their main ballast tanks for submersion and surfacing. When traveling underwater, only sonar equipment can detect it. [0003] As a kind of naval combat force, submarines have the characteristics of being independent of air support, far away from bases, single-boat or multi-boat operations, and fighting with other naval forces due to their unique concealment, strong assault capability, high mobility, and long-lasting self-sustainability. The ability of troops to coordinate operations and perform multiple combat missions, and achieved great results in the two world wars, has demonstrated its powerful...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L23/28C08L61/06C08L101/00C08K13/06C08K9/06C08K3/22C08K5/18C08K5/053C08K3/04C08K5/09
CPCC08K2003/2296C08K2201/011C08L75/08C08L2205/035C08L23/283C08L61/06C08L101/00C08K13/06C08K9/06C08K3/22C08K5/18C08K5/053C08K3/04C08K5/09
Inventor 胡晓玉
Owner 于庭富
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