CN112961416A - Deep sea device coating pressure-resistant material and preparation method thereof - Google Patents
Deep sea device coating pressure-resistant material and preparation method thereof Download PDFInfo
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- CN112961416A CN112961416A CN202110278961.9A CN202110278961A CN112961416A CN 112961416 A CN112961416 A CN 112961416A CN 202110278961 A CN202110278961 A CN 202110278961A CN 112961416 A CN112961416 A CN 112961416A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
Abstract
The invention belongs to the technical field of ocean engineering protection, and relates to a deep sea device coating pressure-resistant material and a preparation method thereof, wherein the deep sea device coating pressure-resistant material consists of epoxy resin, amino liquid rubber and an amine cross-linking agent, and the preparation method of the deep sea device coating pressure-resistant material comprises the following process steps: weighing bisphenol A type epoxy resin E51, polyamide resin and amine-terminated liquid nitrile rubber, mixing and uniformly stirring, pouring into a mold, placing in a vacuum chamber, exhausting air to remove bubbles, taking out the mold, and placing at room temperature for curing to obtain a deep sea device coating pressure-resistant material consisting of epoxy resin, amine-based liquid rubber and an amine cross-linking agent; the rubber modified epoxy deep sea device coated pressure-resistant material and the preparation method thereof are designed and prepared based on the good bonding sealing performance of the epoxy polymer, the higher Poisson's ratio and the flexibility characteristics of the rubber material, and the deep sea device coated pressure-resistant material has deep sea pressure resistance and bonding sealing performance, thereby providing technical support for the pressure-resistant design of the marine exploration deep submersible equipment.
Description
The technical field is as follows:
the invention belongs to the technical field of ocean engineering protection, and relates to a deep sea device coating pressure-resistant material and a preparation method thereof, in particular to a rubber modified epoxy resin deep sea device coating pressure-resistant material which has remarkable economic benefit and industry development promotion effect.
Background art:
the ocean is a resource treasury which is continuously developed in the world and contains extremely rich energy and mineral resources, about 2.5 thousands of marine organism information is published by the international marine organism census plan, and scientists estimate that about 210 thousands of unknown marine organisms exist at least. Ocean exploration is an important means for searching ocean resources, one of the main problems faced at present is the pressure-resistant protection of exploration deep diving equipment and devices, the traditional protection cavity needs an extremely thick shell for bearing huge pressure, the connection part of the cavity is sealed, and the like, and the cost is high, so the traditional protection cavity becomes one of the main obstacles of the deep diving device, and meanwhile, the hard structure needs to ensure that the stress is uniform in the process of landing and swimming, namely, the capacity of bearing collision and the like is weak. Researches show that the Poisson ratio of soft materials such as organic silicon elastomer rubber, nitrile rubber, styrene butadiene rubber and the like tends to 0.5, the soft materials are not easy to damage when the soft materials play a coating role, and the soft materials have a pressure-resistant protection effect to a certain extent. The invention patent CN201811418653.6 discloses a preparation method of a deep sea soft buoyancy material for wrapping and protecting deep sea electronic components, which comprises the steps of adding polytetrafluoroethylene powder and glass microspheres with the volume less than 0.46 g/cubic centimeter of the volume of dragon skin into dragon skin A liquid and dragon skin B liquid respectively, uniformly stirring and mixing, pouring into a mould for multiple times of circulating vacuumizing-pressurizing steps, drying and placing to obtain the deep sea soft buoyancy material, and using the obtained deep sea soft buoyancy material for filling the electronic components.
CN201510380951.0 discloses a pressure-resistant polypropylene thermal insulation material and a preparation method and application thereof, wherein polypropylene resin is used as a polymer matrix, the pressure-resistant polypropylene thermal insulation material is prepared by filling hollow glass microspheres and fumed silica, wherein the fumed silica can utilize the porous structure of the fumed silica to improve the filling efficiency of the hollow glass microspheres, and the prepared pressure-resistant polypropylene thermal insulation material has lower thermal conductivity and higher pressure-resistant strength than a thermal insulation material which is prepared by singly filling the hollow glass microspheres and a traditional polyurethane material. The invention patent CN201610863424.X discloses a deep sea pressure-resistant polymer solid lithium ion power battery, which is used for high-power energy supply of deep sea underwater engineering equipment and underwater scientific equipment and comprises a battery structure of a silicon capsule bag, a battery shell, a single-ion conductor composite silicon ester pressure-resistant diaphragm and a three-dimensional stainless steel current collector, wherein the electrolyte is prepared by adopting a mode of combining high molecular weight and low molecular weight. The battery diaphragm adopts a single ion conductor composite lithium salt and a small molecular weight silicon ester polymer, the lithium salt is fixed between the diaphragm and the pole piece, gapless interface contact is realized through the single ion conductor and the silicon ester polymer, and the pressure resistance and the conductivity are ensured. The battery shell is compounded by silica gel with high elastic modulus and polypropylene-aramid fiber, so that the battery shell has sealing and pressure-resistant effects. Although the organic silicon material in the patent or the prior art has good flexibility, the strength is low, usually only 0.5-1.0MPa, the bonding performance with a device is poor, and the organic silicon material is easy to peel and deform; polypropylene materials also have poor adhesion and high hardness. Therefore, the deep sea device coating pressure-resistant material and the preparation method thereof are researched and designed, technical support is provided for pressure-resistant design of marine exploration deep submergence equipment, and the deep sea device coating pressure-resistant material is used for coating sealing and pressure resistance of critical parts in a deep sea environment.
The invention content is as follows:
the invention aims to overcome the defects in the prior art and seek to design a deep sea device coated pressure-resistant material and a preparation method thereof, and the rubber modified epoxy deep sea device coated pressure-resistant material with deep sea pressure resistance and bonding sealing performance is obtained based on the good bonding sealing performance of an epoxy polymer and the high Poisson's ratio and flexibility characteristics of a rubber material.
In order to achieve the purpose, the deep sea device coating pressure-resistant material comprises epoxy resin, amino liquid rubber and an amine cross-linking agent.
The epoxy resin comprises general bisphenol A epoxy resin, bisphenol F epoxy resin, polyphenol glycidyl ether epoxy resin, aliphatic glycidyl ether epoxy resin and glycidyl ester epoxy resin.
The skeleton structure of the amino liquid rubber comprises telechelic amino liquid rubber and non-telechelic amino liquid rubber, and the types of the amino liquid rubber comprise polybutadiene rubber, nitrile rubber and styrene butadiene rubber.
The amine crosslinking agent comprises ethylenediamine, diethylenetriamine, triethylene tetramine, diethylamine, polyether diamine and polyamide.
The ratio of the epoxy value of the epoxy resin to the total amine value of the amino liquid rubber and the polyamide crosslinking agent is 0.8-1.2.
The deep sea device coating pressure-resistant material can use toluene or xylene as a diluent, does not necessarily need to be composed, and is used for adjusting the fluidity, and the mass fraction of the diluent accounts for 0-20% of the total mass of the epoxy resin, the amino liquid rubber and the amine crosslinking agent.
Compared with the prior art, the invention designs and prepares the rubber modified epoxy deep sea device coating pressure-resistant material and the preparation method thereof based on the good bonding sealing performance of the epoxy polymer, the higher Poisson's ratio and the flexibility characteristics of the rubber material, and ensures that the deep sea device coating pressure-resistant material has deep sea pressure resistance and bonding sealing performance, thereby providing technical support for the pressure-resistant design of the marine exploration deep-sea submersible equipment, being used for the coating sealing and pressure resistance of the key parts of the deep sea environment, and having remarkable economic benefit and industry development promotion effect.
Description of the drawings:
FIG. 1 is a graph showing the results of the withstand voltage test of the deep sea device cladding withstand voltage material according to embodiment 3 of the present invention.
The specific implementation mode is as follows:
the invention is further described below by way of an embodiment example in conjunction with the accompanying drawings.
Example 1:
the preparation method of the deep sea device cladding pressure-resistant material related to the embodiment comprises the following process steps: respectively weighing 38.0g of bisphenol A type epoxy resin E51, 8.1g of polyamide resin and 100.0g of amine-terminated liquid nitrile rubber, mixing and uniformly stirring, pouring into a mold, placing in a vacuum chamber, exhausting air to remove bubbles, taking out the mold, and placing at room temperature for curing for 48 hours to obtain a deep sea device coating pressure-resistant material consisting of epoxy resin, amine-based liquid rubber and an amine cross-linking agent; wherein, the ratio of the epoxy value of the bisphenol A type epoxy resin E51 to the amine group value of the polyamide resin and the amine-terminated liquid nitrile rubber is 1.
Example 2:
the mechanical properties of the material of the deep sea device coated pressure-resistant material related to the embodiment are measured by using a shore D hardness tester to measure hardness, and by using a material comprehensive property tester to measure tensile strength and elastic modulus, and the density is calculated by weight and volume, and the result shows that: the Shore D hardness of the deep sea device coating pressure-resistant material is 41, the tensile strength is 9.8MPa, the elastic modulus is 54.2MPa, and the average density is 1.01g/cm3。
Example 3:
in the evaluation of the pressure resistance of the deep sea device coated pressure-resistant material according to the embodiment, the deep sea device coated pressure-resistant material is placed in a test chamber of a simulated deep sea pressure test device, the pressure is increased to 50MPa, the pressure is maintained for 6 hours, the deep sea device coated pressure-resistant material is taken out after the pressure is released to normal pressure, the change condition of the pressure resistance is observed and tested, and the result is shown in fig. 1: the whole is complete, no obvious damage is caused, the average value of tensile strength is 9.7MPa, the average value of elastic modulus is 52.9MPa, and the Shore D hardness and the density of the material are not obviously changed.
Claims (8)
1. The deep sea device coated pressure-resistant material is characterized by consisting of epoxy resin, amino liquid rubber and an amine cross-linking agent.
2. The deep sea device covering pressure-resistant material according to claim 1, wherein the epoxy resin comprises general bisphenol A type epoxy resin, bisphenol F type epoxy resin, polyphenol type glycidyl ether epoxy resin, aliphatic glycidyl ether epoxy resin and glycidyl ester epoxy resin.
3. The deep sea device covering pressure-resistant material according to claim 1, wherein the skeleton structure of the amine-based liquid rubber comprises telechelic amino liquid rubber and non-telechelic amino liquid rubber, and the types comprise polybutadiene rubber, nitrile rubber and styrene butadiene rubber.
4. The deep sea device coating pressure-resistant material of claim 1, wherein the amine cross-linking agent comprises ethylenediamine, diethylenetriamine, triethylenetetramine, diethylamine, polyetherdiamine and polyamide.
5. The deep sea device covering pressure-resistant material according to claim 1, wherein the ratio of the epoxy value of the epoxy resin to the total amine value of the amino liquid rubber and the polyamide crosslinking agent is 0.8 to 1.2.
6. The deep sea device covering pressure-resistant material according to claim 1 or 5, wherein toluene or xylene is used as a diluent, the diluent is not necessarily composed for adjusting fluidity, and the mass fraction of the diluent is 0 to 20% of the total mass of the epoxy resin, the amine-based liquid rubber and the amine-based crosslinking agent.
7. A preparation method of a deep sea device coated pressure-resistant material is characterized by comprising the following technological processes: respectively weighing 38.0g of bisphenol A type epoxy resin E51, 8.1g of polyamide resin and 100.0g of amine-terminated liquid nitrile rubber, mixing and uniformly stirring, pouring into a mold, placing in a vacuum chamber, exhausting air to remove bubbles, taking out the mold, and placing at room temperature for curing for 48 hours to obtain the deep sea device coating pressure-resistant material consisting of the epoxy resin, the amine-based liquid rubber and the amine cross-linking agent.
8. The method for preparing a deep sea device-coated pressure resistant material according to claim 1, wherein the ratio of the epoxy value of the bisphenol A type epoxy resin E51 to the amine group value of the polyamide resin and the amine-terminated liquid nitrile rubber is 1.
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Citations (8)
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|---|---|---|---|---|
| US4921912A (en) * | 1986-02-03 | 1990-05-01 | Ciba-Geigy Corporation | Epoxy resin composition containing acrylic oligomer, amine and amine-terminated nitrile rubber |
| US5157077A (en) * | 1990-04-27 | 1992-10-20 | The B. F. Goodrich Company | Epoxy resin systems modified with statistical monofunctional reactive polymers |
| JP2012102230A (en) * | 2010-11-10 | 2012-05-31 | Honda Motor Co Ltd | Curable resin composition and electric and electronic part using the same |
| CN102585442A (en) * | 2012-03-14 | 2012-07-18 | 中国海洋石油总公司 | Underwater resin matrix light high-strength composite material and preparation method thereof |
| CN103374320A (en) * | 2013-06-17 | 2013-10-30 | 南京大学 | Method for toughening and curing epoxy resin adhesive by using amino-terminated liquid nitrile rubber |
| CN106085325A (en) * | 2016-07-14 | 2016-11-09 | 南京大学 | The epoxy adhesive that tertiary-amine modified LNBR is toughness reinforcing |
| CN107383665A (en) * | 2017-08-15 | 2017-11-24 | 株洲时代新材料科技股份有限公司 | A kind of low water rate solid buoyancy material and preparation method thereof |
| US20180086910A1 (en) * | 2016-09-23 | 2018-03-29 | Elite Material Co., Ltd. | Resin composition suitable for rigid-flex board and use thereof |
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2021
- 2021-03-16 CN CN202110278961.9A patent/CN112961416A/en active Pending
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|---|---|---|---|---|
| US4921912A (en) * | 1986-02-03 | 1990-05-01 | Ciba-Geigy Corporation | Epoxy resin composition containing acrylic oligomer, amine and amine-terminated nitrile rubber |
| US5157077A (en) * | 1990-04-27 | 1992-10-20 | The B. F. Goodrich Company | Epoxy resin systems modified with statistical monofunctional reactive polymers |
| JP2012102230A (en) * | 2010-11-10 | 2012-05-31 | Honda Motor Co Ltd | Curable resin composition and electric and electronic part using the same |
| CN102585442A (en) * | 2012-03-14 | 2012-07-18 | 中国海洋石油总公司 | Underwater resin matrix light high-strength composite material and preparation method thereof |
| CN103374320A (en) * | 2013-06-17 | 2013-10-30 | 南京大学 | Method for toughening and curing epoxy resin adhesive by using amino-terminated liquid nitrile rubber |
| CN106085325A (en) * | 2016-07-14 | 2016-11-09 | 南京大学 | The epoxy adhesive that tertiary-amine modified LNBR is toughness reinforcing |
| US20180086910A1 (en) * | 2016-09-23 | 2018-03-29 | Elite Material Co., Ltd. | Resin composition suitable for rigid-flex board and use thereof |
| CN107383665A (en) * | 2017-08-15 | 2017-11-24 | 株洲时代新材料科技股份有限公司 | A kind of low water rate solid buoyancy material and preparation method thereof |
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Application publication date: 20210615 |