阅读说明：本技术 一种舰船灌注密封阻尼减振材料及其制备方法 (Ship filling sealing damping vibration attenuation material and preparation method thereof ) 是由 王宝柱 郭焱 王伟 李永岗 刘丽媛 于 2020-05-11 设计创作，主要内容包括：本发明提出了一种舰船灌注密封阻尼减振材料,包括A组分和B组分,其中,A组分包括以下原料：低聚物多元醇、多异氰酸酯；B组分包括以下原料：低聚物多元醇、扩链交联剂；其中,低聚物多元醇包括端羟基聚丁二烯、聚四氢呋喃醚二醇、聚己内酯二醇和聚碳酸酯二醇中的至少两种化合物。本发明的舰船灌注密封阻尼减振材料,通过采用具有耐海洋环境腐蚀的聚四氢呋喃醚二醇与对有效控制机械振动和噪声的端羟基聚丁二烯、聚己内酯二醇、聚碳酸酯二醇共混,制备得到的阻尼减振材料具有较宽的阻尼温域和较高损耗因子,且耐海水腐蚀,适用于舰船灌注密封施工工艺。(The invention provides a ship perfusion sealing damping vibration attenuation material, which comprises a component A and a component B, wherein the component A comprises the following raw materials: oligomer polyols, polyisocyanates; the component B comprises the following raw materials: oligomer polyol and a chain extension crosslinking agent; wherein the oligomer polyol comprises at least two compounds of hydroxyl-terminated polybutadiene, polytetrahydrofuran ether glycol, polycaprolactone diol and polycarbonate diol. According to the ship perfusion sealing damping vibration attenuation material, the polytetrahydrofuran ether glycol with marine environment corrosion resistance is mixed with the hydroxyl-terminated polybutadiene, the polycaprolactone glycol and the polycarbonate glycol which can effectively control mechanical vibration and noise, so that the prepared damping vibration attenuation material has a wide damping temperature range, a high loss factor, seawater corrosion resistance and is suitable for a ship perfusion sealing construction process.)

1. The utility model provides a naval vessel fills sealed damping vibration damping material which characterized in that: the paint comprises a component A and a component B, wherein the component A comprises the following raw materials: oligomer polyols, polyisocyanates; the component B comprises the following raw materials: oligomer polyol and a chain extension crosslinking agent;

wherein the oligomer polyol comprises at least one of hydroxyl-terminated polybutadiene, polytetrahydrofuran ether glycol, polycaprolactone diol and polycarbonate diol.

2. The marine perfusion seal damping vibration damping material as claimed in claim 1, wherein: the polyisocyanate includes: toluene diisocyanate, diphenylmethane diisocyanate, polyphenyl polymethylene polyisocyanate, isophorone diisocyanate, 4' -dicyclohexylmethane diisocyanate, and naphthalene diisocyanate.

3. The marine perfusion seal damping vibration damping material as claimed in claim 1, wherein: the chain extension crosslinking agent comprises: 3,3' -dichloro-4, 4' -diaminodiphenylmethane, 3' -diethyl-4, 4' -diaminodiphenylmethane, dimethylthiotoluenediamine, 2, 4-diamino-3, 5-dimethylthiochlorobenzene, bis-sec-butylaminodiphenylmethane, N ' -dialkylphenylenediamine, 1, 4-butanediol, 1, 2-propanediol, trimethylolpropane, castor oil, N-di (2-hydroxypropyl) aniline.

4. The marine perfusion seal damping vibration damping material as claimed in claim 1, wherein: further comprising a silane coupling agent, the silane coupling agent comprising: at least one of gamma-aminopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane, gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane and gamma- (methacryloyloxy) propyltrimethoxysilane.

5. The marine perfusion seal damping vibration damping material as claimed in claim 1, wherein: also included are flame retardants including: at least one of tris (2-chloroethyl) phosphate, tris (2-chloropropyl) phosphate, dimethyl methylphosphonate, dimethyl propylphosphonate, tris (2, 3-dibromopropyl) phosphate and phosphine-based composite flame retardants.

6. The marine perfusion seal damping vibration damping material as claimed in claim 1, wherein: still include the damping filler, the damping filler includes: at least one of mica powder, white carbon black, N-dicyclohexyl-2-benzothiazole sulfonamide and vermiculite powder.

7. The marine perfusion seal damping vibration damping material as claimed in claim 1, wherein: the mass ratio of oligomer polyol to polyisocyanate in the component A is 100-25: 62.5, the mass ratio of oligomer polyol to chain extension crosslinking agent in the component B is 100: 40-60, and the mass ratio of the component A to the component B is 100: 120-180.

8. A preparation method of a ship perfusion sealing damping vibration attenuation material is characterized by comprising the following steps: the material comprises a component A and a component B, and the preparation method of the material comprises the following steps:

s1, preparation of the component A: decompressing and dehydrating oligomer polyalcohol, and adding polyisocyanate for reaction to obtain a component A;

s2, preparation of a component B: and mixing the oligomer polyol and the chain extension crosslinking agent, and then decompressing and dehydrating to obtain the component B.

9. The method for preparing the ship perfusion sealing damping vibration attenuation material as claimed in claim 8, wherein the method comprises the following steps: and in S1, performing reduced pressure dehydration for 1.5-2.0 h at the temperature of 110-120 ℃ and the vacuum degree of-0.09 MPa, then cooling to 50-60 ℃, adding polyisocyanate, heating to 80-90 ℃, and reacting for 2-3 h to obtain the component A.

10. The method for preparing the ship perfusion sealing damping vibration attenuation material as claimed in claim 8, wherein the method comprises the following steps: in S2, mixing oligomer polyol and a chain extension crosslinking agent, decompressing and dehydrating, and then adding a silane coupling agent, a damping filler and a flame retardant to disperse uniformly to obtain a component B; wherein the oligomer polyol and the chain extension crosslinking agent are mixed and then are subjected to decompression dehydration for 1.5-2.0 h at the temperature of 110-120 ℃ and the vacuum degree of-0.09 MPa.

Technical Field

The invention relates to the technical field of damping materials, in particular to a ship perfusion sealing damping vibration attenuation material and a preparation method thereof.

Background

The pouring type damping material is a special material with vibration and noise reduction and certain sealing performance, and is used for ships and mechanical equipment to reduce vibration and noise, so that the ships effectively avoid the remote detection of radar and sonar, and the stealth level of the ships is improved. At present, damping materials are needed to be adopted in hulls, bases, bulkheads, decks and cabins where main vibration sources are located in surface ships and submarines to inhibit vibration and reduce noise. The high polymer material is used for damping materials due to the unique viscoelasticity, the temperature range of the internal consumption peak of a single high polymer material is generally narrow, and in order to obtain the viscoelasticity high polymer damping material with a wider damping temperature range and a higher loss factor, the technologies of blending, copolymerization, interpenetrating networks and the like are generally adopted.

Disclosure of Invention

In view of the above, the invention provides a ship perfusion sealing damping vibration attenuation material which has a wider damping temperature range and a higher loss factor and is resistant to seawater corrosion.

The technical scheme of the invention is realized as follows: the invention provides a ship perfusion sealing damping vibration attenuation material, which comprises a component A and a component B, wherein the component A comprises the following raw materials: oligomer polyols, polyisocyanates; the component B comprises the following raw materials: oligomer polyol and a chain extension crosslinking agent;

wherein the oligomer polyol comprises at least two of hydroxyl-terminated polybutadiene, polytetrahydrofuran ether glycol, polycaprolactone diol, and polycarbonate diol.

On the basis of the above technical solution, preferably, the polyisocyanate comprises: toluene diisocyanate, diphenylmethane diisocyanate, polyphenyl polymethylene polyisocyanate, isophorone diisocyanate, 4' -dicyclohexylmethane diisocyanate, and naphthalene diisocyanate.

On the basis of the above technical solution, preferably, the chain-extending crosslinking agent includes: 3,3' -dichloro-4, 4' -diaminodiphenylmethane, 3' -diethyl-4, 4' -diaminodiphenylmethane, dimethylthiotoluenediamine, 2, 4-diamino-3, 5-dimethylthiochlorobenzene, bis-sec-butylaminodiphenylmethane, N ' -dialkylphenylenediamine, 1, 4-butanediol, 1, 2-propanediol, trimethylolpropane, castor oil, N-di (2-hydroxypropyl) aniline.

On the basis of the above technical solution, preferably, the paint further comprises a silane coupling agent, and the silane coupling agent comprises: at least one of gamma-aminopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane, gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane and gamma- (methacryloyloxy) propyltrimethoxysilane.

On the basis of the above technical solution, preferably, the flame retardant further comprises a flame retardant, and the flame retardant comprises: at least one of tris (2-chloroethyl) phosphate, tris (2-chloropropyl) phosphate, dimethyl methylphosphonate, dimethyl propylphosphonate, tris (2, 3-dibromopropyl) phosphate and phosphine-based composite flame retardants.

On the basis of the above technical solution, preferably, the damping filler further comprises: at least one of mica powder, white carbon black, N-dicyclohexyl-2-benzothiazole sulfonamide and vermiculite powder.

On the basis of the technical scheme, preferably, the mass ratio of the oligomer polyol to the polyisocyanate in the component A is 100-25: 62.5, the mass ratio of the oligomer polyol to the chain-extending cross-linking agent in the component B is 100: 40-60, and the mass ratio of the component A to the component B is 100: 120-180.

The invention also provides a preparation method of the ship perfusion sealing damping vibration attenuation material, the material comprises a component A and a component B, and the preparation method of the material comprises the following steps:

s1, preparation of the component A: decompressing and dehydrating oligomer polyalcohol, and adding polyisocyanate for reaction to obtain a component A;

s2, preparation of a component B: and mixing the oligomer polyol and the chain extension crosslinking agent, and then decompressing and dehydrating to obtain the component B.

On the basis of the technical scheme, preferably, in S1, at the temperature of 110-120 ℃ and the vacuum degree of-0.09 MPa, the pressure is reduced and the water is dehydrated for 1.5-2.0 h, then the temperature is reduced to 50-60 ℃, polyisocyanate is added, and then the temperature is increased to 80-90 ℃ to react for 2-3 h, so that the component A is obtained.

On the basis of the technical scheme, preferably, in S2, the oligomer polyol and the chain extension crosslinking agent are mixed and then decompressed and dehydrated, and then the silane coupling agent, the damping filler and the flame retardant are added to be uniformly dispersed to obtain a component B; wherein the oligomer polyol and the chain extension crosslinking agent are mixed and then are subjected to decompression dehydration for 1.5-2.0 h at the temperature of 110-120 ℃ and the vacuum degree of-0.09 MPa.

Compared with the prior art, the ship perfusion sealing damping vibration attenuation material has the following beneficial effects:

(1) according to the ship perfusion sealing damping vibration attenuation material, the polytetrahydrofuran ether glycol with marine environment corrosion resistance and two or more of hydroxyl-terminated polybutadiene, polycaprolactone glycol and polycarbonate glycol which can effectively control mechanical vibration and noise are mixed, so that the prepared damping vibration attenuation material has a wider damping temperature range and a higher loss factor, is seawater corrosion resistant, and is suitable for a ship perfusion sealing construction process;

(2) the ship perfusion sealing damping vibration attenuation material also comprises a silane coupling agent, so that the wetting effect of solid particle interfaces such as a flame retardant and the like can be enhanced and the solid particle interfaces are fully dispersed; the damping filler is also included to enhance the damping performance of the material; the flame retardant is also included to further improve the flame retardant performance of the material; and the chain extension crosslinking agent is also included to improve the mechanical property of the material.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.