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Ship perfusion sealing damping vibration attenuation material and preparation method thereof

A damping material and damping technology, which is applied in the field of damping materials, can solve the problems of wide damping temperature range, high loss factor, non-existence, etc., and achieve the effects of improving flame retardancy, improving mechanical properties, and enhancing damping performance

Active Publication Date: 2020-08-14
QINGDAO AIR NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the damping materials prepared by these methods have a single function, do not have a wide damping temperature range and a high loss factor, and these damping materials do not have good seawater corrosion resistance and are not suitable for damping materials for ship perfusion sealing. Based on this, It is necessary to provide a damping and vibration-absorbing material for ship perfusion sealing

Method used

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  • Ship perfusion sealing damping vibration attenuation material and preparation method thereof
  • Ship perfusion sealing damping vibration attenuation material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A ship perfusion seal damping vibration damping material is characterized in that: it includes A component and B component, wherein, A component includes the following raw materials in parts by weight: 100 parts of oligomer polyol, 25 parts of toluene di Isocyanate; component B includes the following raw materials in parts by weight: 100 parts of oligomer polyol, 40 parts of chain-extending cross-linking agent, and 40 parts of damping filler.

[0024] Wherein, the oligomer polyol includes two or more of hydroxyl-terminated polybutadiene, polytetrahydrofuran ether diol, polycaprolactone diol, and polycarbonate diol. Specifically, the oligomer in this embodiment Polyols include hydroxyl-terminated polybutadiene and polycaprolactone diols;

[0025] Among them: the mass ratio of hydroxyl-terminated polybutadiene to toluene diisocyanate in component A is 4:1; the mass ratio of polycaprolactone diol to chain-extending crosslinking agent and damping filler in component B is 10...

Embodiment 2

[0031] A ship perfusion sealing damping vibration damping material is characterized in that: it includes A component and B component, wherein, A component includes the following raw materials by weight: 100 parts of oligomer polyol, 62.5 parts of diphenyl Methane diisocyanate; B component includes the following raw materials in parts by weight: 100 parts of oligomer polyol, 50 parts of chain-extending cross-linking agent, 40 parts of damping filler.

[0032] Wherein, the oligomer polyol includes two or more of hydroxyl-terminated polybutadiene, polytetrahydrofuran ether diol, polycaprolactone diol, and polycarbonate diol. Specifically, the oligomer in this embodiment Polyols include hydroxyl-terminated polybutadiene and polytetrahydrofuran ether glycol;

[0033] Among them: the mass ratio of hydroxyl-terminated polybutadiene to diphenylmethane diisocyanate in component A is 100:62.5; the mass ratio of polycaprolactone diol to chain-extending crosslinking agent and damping fill...

Embodiment 3

[0039] A ship perfusion sealing damping vibration damping material: including A component and B component, wherein, A component includes the following raw materials in parts by weight: 100 parts of polycaprolactone diol, its relative molecular mass is 2000±50, The hydroxyl value is 56±3mgKOH / g, 25 parts of TDI-80 / 20, the isocyanate content in component A is 6.2%±0.5%;

[0040] Component B includes the following raw materials in parts by weight: 60 parts of polytetrahydrofuran ether glycol with a relative molecular weight of 1000±50 and a hydroxyl value of 107-118 mgKOH / g;

[0041] 40 parts of polycarbonate diol, its relative molecular mass is 2000±50, the hydroxyl value is 56±5mgKOH / g, and the acid value is ≤0.1mgKOH / g;

[0042]26 parts of bis-sec-butylaminodiphenylmethane, 6 parts of 1,4-butanediol, 4 parts of γ-aminopropyltriethoxysilane, 35 parts of phosphine composite flame retardant FR-8107, 15 parts of dimethyl methylphosphonate, 22 parts of mica powder, 18 parts of N,N...

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Abstract

The invention provides a ship perfusion sealing damping vibration attenuation material which comprises a component A and a component B. The component A comprises the following raw materials: oligomerpolyol and polyisocyanate; the component B is prepared from the following raw materials: oligomer polyol and a chain extension cross-linking agent, wherein the oligomer polyol comprises at least two compounds selected from the group consisting of hydroxyl-terminated polybutadiene, polytetrahydrofuran ether glycol, polycaprolactone glycol and polycarbonate glycol. According to the ship perfusion sealing damping vibration attenuation material, polytetrahydrofuran ether glycol is blended with marine environment corrosion resistance with hydroxyl-terminated polybutadiene, polycaprolactone glycol and polycarbonate glycol which are used for effectively controlling mechanical vibration and noise, the prepared damping vibration attenuation material has a wide damping temperature range and a high loss factor and is resistant to seawater corrosion and is suitable for a ship perfusion sealing construction process.

Description

technical field [0001] The invention relates to the technical field of damping materials, in particular to a ship perfusion sealing damping vibration damping material and a preparation method thereof. Background technique [0002] The perfusion damping material is a special material with vibration reduction and noise reduction and certain sealing performance. It is used in ships and mechanical equipment to reduce vibration and noise, so that ships can effectively avoid long-range detection by radar and sonar, and improve the quality of ships. level of invisibility. At present, the hull, base, bulkhead, deck, and cabin interior where the main vibration sources are located in surface ships and submarines need to use damping materials to suppress vibration and reduce noise. Polymer materials are used as damping materials because of their unique viscoelasticity. The temperature range of the internal friction peak of a single polymer material is generally very narrow. In order t...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/69C08G18/48C08G18/44C08G18/42C08G18/12C08G18/10C08K13/02C08K7/26C08K5/47C08K3/34C08K5/5333C08K5/521
CPCC08G18/698C08G18/4277C08G18/4854C08G18/44C08G18/7614C08G18/7671C08G18/7621C08G18/12C08G18/10C08K13/02C08K3/34C08K7/26C08K5/47C08K3/346C08K5/5333C08K5/521C08G18/6633C08G18/6685C08G18/6651
Inventor 王宝柱郭焱王伟李永岗刘丽媛
Owner QINGDAO AIR NEW MATERIALS
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