CN113121956A - Solid buoyancy material and preparation method and application thereof - Google Patents
Solid buoyancy material and preparation method and application thereof Download PDFInfo
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- CN113121956A CN113121956A CN201911403685.3A CN201911403685A CN113121956A CN 113121956 A CN113121956 A CN 113121956A CN 201911403685 A CN201911403685 A CN 201911403685A CN 113121956 A CN113121956 A CN 113121956A
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Abstract
The invention provides a solid buoyancy material and a preparation method and application thereof, wherein the solid buoyancy material comprises hollow glass microspheres and organic resin adhesives; the prepared solid buoyancy material has a point connection structure between microspheres due to the fact that the ultralow-content organic resin adhesive is used as the adhesive, and the density of the prepared solid buoyancy material is far lower than that of the solid buoyancy material of the same type prepared by the traditional method while the high strength is kept. The solid buoyancy material can overcome the defects of high density and high water absorption of the traditional solid buoyancy material, and can keep the characteristics of high strength and machinability.
Description
Technical Field
The invention relates to the field of solid buoyancy materials, in particular to a solid buoyancy material with ultralow content of organic resin adhesives, and a preparation method and application thereof.
Background
With the continuous acceleration of the process of the field of marine exploration and development, projects such as marine scientific research, marine resource investigation and marine instrument and equipment research and test put forward higher requirements on the performance of the solid buoyancy material, the solid buoyancy material with low density and high bearing strength is urgently needed, the sufficient buoyancy is provided for the equipment by the minimum external dimension of the solid buoyancy material, and the effective load of the equipment is improved. Foreign enterprises in Europe, America, Australia, Japan and the like, such as the American Cumming corp. company, Australian Matrix company, European Balmol Offshore Engineering company, Trelleberg Offshore company, Marin Subsea Group company and the like, developed buoyancy materials are widely applied to underwater vehicles, and the density of the developed buoyancy materials is 0.42-0.7g/cm3The series of solid buoyancy materials can be used at the depth of 2000-11000m, and are already applied to a plurality of underwater equipment, such as deep sea warrior numbers, Wanquan numbers and the like.
The preparation method of the solid buoyancy material has more prior art, and the solid buoyancy material is mainly divided into a chemical foaming foam material, a copolymer foam material and a composite foam material from the composition point of view. The currently known solid buoyancy material mainly uses hollow microsphere glass microspheres as a filler to reduce the density of the buoyancy material, and the density is mainly kept between 0.46 and 0.7g/cm3In order to provide more buoyancy while maintaining high strength, the solution is only to increase the volume of the buoyant material, which means an increase in cost. On the other hand, 0.46g/cm3The solid buoyancy material with the density below is mainly foamed and added with small balls with large particle sizes (millimeter and centimeter levels) or low-density polymeric microspheres to achieve the purpose of reducing the density, and the difficulty of increasing the preparation process of the buoyancy material is increasedThe strength and the service life of the buoyancy material are affected, so that the buoyancy provided by the material is limited.
Chinese patent document CN101709130A discloses that a polymethacrylimide rigid foam material is used as a core material of a solid buoyancy material, an epoxy resin and microsphere composite material is used as a plane material waterproof layer, and the prepared plane material has the minimum total density of 0.12g/cm3The compression resistance is more than 1MPa, and the compression strength is more than 1.5 MPa. However, the foamed material has disadvantages that the compressive strength is too low, the material is not workable, and the core material absorbs a large amount of water and loses its buoyancy-providing effect upon breakage of the water-blocking layer.
Chinese patent document CN103483774A discloses a high-performance solid buoyancy material, which adopts millimeter-sized hollow glass microspheres and micron-sized hollow glass microspheres as fillers to obtain a solid buoyancy material with the density of 0.34-0.65g/cm3The solid buoyancy material with the pressure bearing capacity of 5-75MPa has the density of 0.35g/cm3The pressure bearing is 9.8MPa, and the defects are that the process is too complex and the material processability is poor due to the existence of millimeter-sized microspheres.
Chinese patent document CN1827691A discloses a buoyancy material with a microsphere/cell composite structure, the average diameter of the cells of the buoyancy material is 0.1-60 μm, the buoyancy material can be used for underwater 800 m deep, the pressure-bearing strength is low due to the defect, and the buoyancy material cannot be used for larger sea depth.
Chinese patent document CN108047649A discloses a preparation method for preparing a low-density shallow sea solid buoyancy material by adding hollow glass microspheres and thermal expansion type polymer microspheres, and the limit density can reach 0.26-0.32g/cm3The bearing pressure is 3-10MPa, the device is suitable for the environment with the water depth of 100-1000m, has low bearing pressure strength and cannot be used in larger sea depth.
From the above patent literature analysis, it is clear that the main reason for the high density of the prior art solid buoyancy material is the high density and high specific occupation of the polymer matrix.
Disclosure of Invention
The invention aims to solve the defect of high density of the traditional solid buoyancy material, a small amount of organic resin adhesive is used for bonding and molding microspheres and microspheres through solvent volatilization to obtain the solid buoyancy material, the prepared solid buoyancy material is formed by bonding the microspheres and the microspheres together through a small amount of organic resin adhesive to form a porous structure, and the density of the prepared solid buoyancy material can be lower than that of the solid buoyancy material prepared by the traditional method while the higher strength is kept. In addition, the solid buoyant material is capable of maintaining high strength and machinable cutting characteristics.
The purpose of the invention is realized by adopting the following technical scheme:
the invention provides a solid buoyancy material, which comprises the following components:
hollow glass microspheres: 90-99 wt%
Organic resin binder: 1-10 wt%;
reinforcing agent: 0 to 1 wt%.
According to the invention, the solid buoyant material comprises the following components:
hollow glass microspheres: 92-98 wt%;
organic resin binder: 2-8 wt%;
reinforcing agent: 0.01-1 wt%.
The invention also provides a solid buoyancy material, and the preparation raw materials of the solid buoyancy material comprise the following components:
hollow glass microspheres: 100 parts of (A);
organic resin binder: 1-10 parts;
volatile organic solvent: 20-200 parts of a solvent;
reinforcing agent: 0-1 part.
According to the invention, the raw materials for preparing the solid buoyancy material comprise the following components:
hollow glass microspheres: 100 parts of (A);
organic resin binder: 1-9 parts;
volatile organic solvent: 40-150 parts;
reinforcing agent: 0.01-1 part.
According to the invention, in the solid buoyancy material, the mass ratio of the hollow glass microspheres is 90-99 wt%, and the mass ratio of the organic resin adhesive is 1-10 wt%. For example, the hollow glass microspheres may be present in a ratio of 91 wt%, 92 wt%, 95 wt%, 97 wt%, or 98 wt%; the organic resin adhesive is 2 wt%, 3 wt%, 5 wt%, 8 wt% or 9 wt% in mass ratio.
According to the invention, the apparent density of the solid buoyancy material is 0.10-0.6g/cm3(ii) a The compressive strength is 0.5-50MPa, preferably 2-50 MPa.
According to the invention, the buoyancy provided by the solid buoyancy material is 400 kg/m3。
According to the invention, the hollow glass microspheres have a true density of less than 1g/cm3Preferably 0.1 to 0.7g/cm3(ii) a The isostatic strength is 0.5-70 MPa.
According to the present invention, the hollow glass microspheres may be commercially available or may be prepared by methods known in the art.
According to the invention, the particle size of the hollow glass microspheres is in the micrometer range, for example in the range of 1-300 micrometers. The particle size of the hollow glass microspheres is normally distributed within the range of 1-300 microns.
According to the present invention, the organic resin-based adhesive comprises an organic resin and optionally an auxiliary; the organic resin is at least one selected from epoxy resin, phenolic resin and polyurethane resin.
Wherein the auxiliary agent is selected from a cross-linking agent, a curing agent and the like.
In the invention, the organic resin adhesive can be cured at high temperature, and can realize the adhesion of the hollow glass microspheres after being cured.
In one embodiment of the present invention, the organic resin based adhesive is at least one selected from the group consisting of an epoxy resin based adhesive, a phenolic resin based adhesive and a urethane resin based adhesive.
Illustratively, the epoxy-based adhesives are, for example, marketed products No. HY-914 (Tianjin sea swallow) and JW-1 (Shanghai friendship), the phenolic-based adhesives are, for example, marketed products No. PR-50232 and PR-23 (Jiayou Baomu Co., Ltd.), and the urethane-based adhesives areExamples of the fat-based adhesives are the commercial products UK8103 (Hangao Germany) and
SA724A (wanghua, china); and different models and manufacturers of other types of products can be selected.
According to the invention, the reinforcing agent is selected from nanoparticles and chopped fibers; for example selected from nano-sized white carbon black and chopped carbon fibers.
The invention also provides a preparation method of the solid buoyancy material, which comprises the following steps:
mixing an organic resin adhesive, a volatile organic solvent and hollow glass microspheres according to a certain mass ratio, drying, removing the volatile organic solvent, heating and curing to prepare the solid buoyancy material.
According to the invention, the method comprises the following steps:
(1) mixing an organic resin adhesive, a volatile organic solvent and an optional reinforcing agent to prepare a mixed system;
(2) mixing the mixed system and the hollow glass microspheres, and pouring the mixture into a mold;
(3) and (3) drying the material obtained in the step (2) to volatilize the volatile organic solvent, and then heating and curing to obtain the solid buoyancy material.
According to the invention, in the step (1), the volatile organic solvent is at least one selected from ethanol, acetone and methanol.
According to the invention, in step (1), the reinforcing agent is selected from nanoparticles and chopped fibers; for example selected from nano-sized white carbon black and chopped carbon fibers.
According to the present invention, in the step (1), the viscosity of the organic resin binder solution is 20 to 15000cp (25 ℃).
According to the invention, in the step (2), after pouring into a mold, vacuum defoaming treatment is carried out, for example, the mixture is placed in a vacuum forming box to be subjected to vacuum defoaming treatment, so as to obtain a mixed material; for example, the vacuum degree of the vacuum defoaming treatment is-0.05 to-0.1 MPa, and the time is 10 to 24 hours.
According to the invention, in step (2), after being poured into the mold, the mold is vibrated for a certain time (for example, the vibration time is 1min to 2 h). For example, the hollow glass microspheres are placed on a vibration table and vibrated for a certain time to tightly pack the hollow glass microspheres in the mold. Preferably, the vibration is performed after the vacuum defoaming.
According to the invention, in step (3), the drying and curing are carried out in an electrically heated constant temperature forced air drying oven.
According to the invention, in the step (3), the drying can be carried out by controlling the drying temperature and the flow rate of the circulating air supply flow, the temperature of the oven is 15-200 ℃, the flow rate of the circulating air supply flow in the oven is 0.5-10m/s, and the drying time is 30min-48h, for example.
For example, the mixture is placed in a forced air drying oven at a temperature of 15 to 90 ℃ and a forced air circulation flow rate of 0.5 to 10m/s for a period of time, for example 1 to 24 hours; the oven temperature is then raised to 100-200 ℃ and the curing treatment is carried out for a period of time, for example 1-24 hours.
According to the method, the hollow glass microspheres are contacted with the organic resin adhesive solution, the adhesive at the adjacent contact points of the hollow glass microspheres is slowly cured in the solvent volatilization process, and then heating and curing are carried out, so that the resin forms the bonding points at the adjacent contact points of the microspheres, and the solid buoyancy material is obtained. Because the amount of organic resin based binder used is small, the binder binds the glass microspheres together only at the portions of the microspheres adjacent to the contact points, and voids or through-holes are formed between the microspheres. In one embodiment, during evaporation of the solvent, for example under surface tension, the solution is allowed to pool at points adjacent to the microspheres, and after curing the resin forms bonds between adjacent microspheres and no resin is present in other portions of the microspheres. In another embodiment, the solution does not flow on the surface of the microspheres during volatilization, and the resin forms a coating (e.g., a full or partial coating) on the surface of the microspheres after curing, and forms a bond point between adjacent contacts of the microspheres.
The invention also provides the use of the above solid buoyancy material in the field of marine exploration or marine solid buoyancy material, preferably in water bodies of depth 50-5000 meters, for example in water bodies of depth 50 meters, 70 meters, 100 meters, 150 meters, 200 meters, 300 meters, 500 meters, 600 meters, 800 meters, 1000 meters, 1100 meters, 1500 meters, 2000 meters, 3000 meters, 4000 meters, 4500 meters, 5000 meters.
The invention has the beneficial effects that:
the invention provides a solid buoyancy material and a preparation method and application thereof, wherein the solid buoyancy material comprises hollow glass microspheres and organic resin adhesives; the solid buoyancy material has a point connection structure between the microspheres due to the fact that the ultralow-content organic resin adhesive is used as the adhesive, and the density of the solid buoyancy material is far lower than that of the solid buoyancy material of the same type prepared by a traditional method while the high strength is kept. The solid buoyancy material can overcome the defects of high density and high water absorption of the traditional solid buoyancy material, and can keep the characteristics of high strength and machinability. The invention adopts a solvent volatilization method to prepare the solid buoyancy material, which not only can greatly reduce the use amount of the adhesive on the basis of ensuring the bonding of the microspheres, but also can form relatively uniform bonding among the microspheres.
Drawings
FIG. 1 is an optical microscope photograph and a scanning electron microscope photograph of hollow glass microspheres used in examples 1 to 8.
Figure 2 scanning electron microscopy of the solid buoyant material of example 4.
Figure 3 scanning electron microscopy of the solid buoyant material of example 5.
Detailed Description
The preparation method of the present invention will be described in further detail with reference to specific examples. It is to be understood that the following examples are only illustrative and explanatory of the present invention and should not be construed as limiting the scope of the present invention. All the technologies realized based on the above-mentioned contents of the present invention are covered in the protection scope of the present invention.
The experimental methods used in the following examples are all conventional methods unless otherwise specified; reagents, materials and the like used in the following examples are commercially available unless otherwise specified.
The hollow glass microspheres described in the following examples are commercially available, for example, from the institute of physical and chemical technology (CN 102583973a) of the chinese academy of sciences, as shown in table 1 below, and the morphology thereof is shown in fig. 1, and other product models and manufacturers can be selected.
TABLE 1 hollow glass microsphere model and Properties
| Hollow glass microsphere type | Density (g/cm)3) | Compressive strength (MPa) | Particle diameter D50(μm) |
| Hollow glass microsphere TG10 | 0.1 | 1 | 69 |
| Hollow glass microsphere TG20 | 0.2 | 3.5 | 69 |
| Hollow glass microsphere TG25 | 0.25 | 5.2 | 60 |
| Hollow glass microsphere TG30 | 0.3 | 12 | 50 |
| Hollow glass microsphere TG35 | 0.35 | 20 | 46 |
| Hollow glass microsphere TG40 | 0.40 | 30 | 40 |
| Hollow glass microsphere TG45 | 0.45 | 40 | 33 |
| Hollow glass microsphere TG50 | 0.50 | 55 | 25 |
Example 1
2 parts (by mass, the same as below) of the adhesive PR-50232 and 100 parts of ethanol are stirred and mixed uniformly to obtain a mixed solution. And then, uniformly stirring and mixing 60 parts of hollow glass microspheres TG10 with the mixed solution, pouring into a mold, and placing the mold into a vacuum forming box for vacuum defoaming treatment for 2 hours, wherein the vacuum degree is-0.05 MPa, so as to obtain a defoamed mixed material. And placing the mixed material after the defoaming treatment on a vibrating table, and vibrating the mould for 1h to tightly stack the microspheres. And placing the mixed material after vibration treatment in a forced air drying oven for 12 hours, wherein the temperature of the oven is 35 ℃, the flow rate of forced air circulation airflow is 0.5 m/s. And then, raising the temperature of the oven to 85 ℃, and curing for 24 hours to obtain the solid buoyancy material.
The solid buoyancy material prepared according to the method has the density of 0.11g/cm3The bearing strength is 2MPa, and the buoyancy can be provided by 890kg/m3The service depth is below 70m in depth.
Example 2
5 parts of adhesive
SA724A and 100 parts of methanol are stirred and mixed uniformly to obtain a mixed solution. And then, uniformly stirring and mixing 100 parts of hollow glass microspheres TG20 with the mixed solution, pouring into a mold, and placing the mold into a vacuum forming box for vacuum defoaming treatment for 2 hours, wherein the vacuum degree is-0.05 MPa, so as to obtain a defoamed mixed material. And placing the mixed material subjected to defoaming treatment on a vibration table, and vibrating the mould for 30min to tightly stack the microspheres. And placing the mixed material after vibration treatment in a forced air drying oven for 4 hours, wherein the temperature of the oven is 50 ℃, the flow rate of forced air circulation airflow is 2 m/s. And then, raising the temperature of the oven to 120 ℃, and curing for 6 hours to obtain the solid buoyancy material.
The solid buoyancy material prepared according to the method has the density of 0.21g/cm3The bearing strength is 3MPa, and the buoyancy can be provided for 790kg/m3The service depth is below 250 m in depth.
Example 3
And stirring and uniformly mixing 10 parts of the adhesive UK8103 and 100 parts of acetone to obtain a mixed solution. And then, uniformly stirring and mixing 100 parts of hollow glass microspheres TG25 with the mixed solution, pouring into a mold, and placing the mold into a vacuum forming box for vacuum defoaming treatment for 15min, wherein the vacuum degree is-0.05 MPa, so as to obtain a defoamed mixed material. And placing the mixed material subjected to defoaming treatment on a vibration table, and vibrating the mould for 30min to tightly stack the microspheres. And placing the mixed material after vibration treatment in a forced air drying oven for 4 hours, wherein the temperature of the oven is 45 ℃, the flow rate of forced air circulation airflow is 1 m/s. And then, raising the temperature of the oven to 95 ℃, and curing for 12 hours to obtain the solid buoyancy material.
The solid buoyancy material prepared according to the method has the density of 0.27g/cm3The bearing strength is 4.3MPa, and the buoyancy can be provided by 730kg/m3The depth of service is below 400 m in depth.
Example 4
8 parts of the adhesive PR-23 and 100 parts of acetone are stirred and mixed uniformly to obtain a mixed solution. And then, uniformly stirring and mixing 100 parts of hollow glass microspheres TG30 with the mixed solution, pouring into a mold, and placing the mold into a vacuum forming box for vacuum defoaming treatment for 2 hours, wherein the vacuum degree is-0.05 MPa, so as to obtain a defoamed mixed material. And placing the mixed material subjected to defoaming treatment on a vibration table, and vibrating the mould for 30min to tightly stack the microspheres. And placing the mixed material after vibration treatment in a forced air drying oven for 4 hours, wherein the temperature of the oven is 50 ℃, the flow rate of forced air circulation airflow is 2 m/s. And then, raising the temperature of the oven to 120 ℃, and curing for 6 hours to obtain the solid buoyancy material.
The local scanning electron microscope photo of the solid buoyancy material prepared by the method is shown in fig. 2, a point bonding structure is formed between microspheres, and the density of the solid buoyancy material is 0.31g/cm3The bearing strength is 12MPa, and the buoyancy can be provided by 690kg/m3The depth of service is below 1000m in depth.
Example 5
8 parts of adhesive JW-1 and 100 parts of ethanol are stirred and mixed uniformly to obtain a mixed solution. And then, uniformly stirring and mixing 100 parts of hollow glass microspheres TG35 with the mixed solution, pouring into a mold, and placing the mold into a vacuum forming box for vacuum defoaming treatment for 2 hours, wherein the vacuum degree is-0.05 MPa, so as to obtain a defoamed mixed material. And placing the mixed material subjected to defoaming treatment on a vibration table, and vibrating the mould for 30min to tightly stack the microspheres. And placing the mixed material after vibration treatment in a forced air drying oven, wherein the temperature of the oven is 80 ℃, the flow rate of forced air circulation airflow is 5m/s, and placing for 4 h. And then, raising the temperature of the oven to 120 ℃, and curing for 6 hours to obtain the solid buoyancy material.
The solid buoyancy material prepared by the method is a local scanning electron microscopeThe photo is shown in figure 3, a point bonding structure is formed between the microspheres, and the density of the solid buoyancy material is 0.37g/cm3The bearing strength is 17MPa, and the buoyancy can be provided for 630kg/m3The depth of service is below 1500 m.
Example 6
And stirring and uniformly mixing 10 parts of adhesive JW-1 and 200 parts of ethanol to obtain a mixed solution. And then uniformly stirring and mixing 90 parts of hollow glass microspheres TG40 and 10 parts of hollow glass microspheres TG50, pouring the mixture into a mold, and placing the mold into a vacuum forming box for vacuum defoaming treatment for 15min at a vacuum degree of-0.08 MPa to obtain a defoamed mixed material. And placing the mixed material subjected to defoaming treatment on a vibration table, and vibrating the mould for 30min to tightly stack the microspheres. And placing the mixed material after vibration treatment in a forced air drying oven for 24 hours, wherein the temperature of the oven is 30 ℃, the flow rate of forced air circulation airflow is 3 m/s. And then, raising the temperature of the oven to 120 ℃, and curing for 12 hours to obtain the solid buoyancy material.
The solid buoyancy material prepared according to the method has the density of 0.42g/cm3The bearing strength is 25MPa, and the buoyancy can be provided by 580kg/m3The depth of service is below 2000 m.
Example 7
8 parts of bonding agent HY-914, 0.5 part of carbon fiber and 200 parts of acetone are stirred and mixed uniformly to obtain a mixed solution. And then, uniformly stirring and mixing 100 parts of hollow glass microspheres TG45 with the mixed solution, pouring into a mold, and placing the mold into a vacuum forming box for vacuum defoaming treatment for 15min, wherein the vacuum degree is-0.08 MPa, so as to obtain a defoamed mixed material. And placing the mixed material subjected to defoaming treatment on a vibration table, and vibrating the mould for 30min to tightly stack the microspheres. And placing the mixed material after vibration treatment in a forced air drying oven for 24 hours, wherein the temperature of the oven is 50 ℃, the flow rate of forced air circulation airflow is 2 m/s. And then, raising the temperature of the oven to 150 ℃, and curing for 4 hours to obtain the solid buoyancy material.
The solid buoyancy material prepared according to the method has the density of 0.46g/cm3The bearing strength is 34MPa, and the buoyancy can be provided by 540kg/m3Depth of serviceThe water depth is below 3000 m.
Example 8
And stirring and mixing 10 parts of bonding agent HY-914, 1 part of white carbon black and 100 parts of acetone uniformly to obtain a mixed solution. And then, uniformly stirring and mixing 100 parts of hollow glass microspheres TG50 with the mixed solution, pouring into a mold, and placing the mold into a vacuum forming box for vacuum defoaming treatment for 15min, wherein the vacuum degree is-0.08 MPa, so as to obtain a defoamed mixed material. And placing the mixed material subjected to defoaming treatment on a vibration table, and vibrating the mould for 30min to tightly stack the microspheres. And placing the mixed material after vibration treatment in a forced air drying oven for 24 hours, wherein the temperature of the oven is 30 ℃, the flow rate of forced air circulation airflow is 3 m/s. And then, raising the temperature of the oven to 120 ℃, and curing for 12 hours to obtain the solid buoyancy material.
The solid buoyancy material prepared according to the method has the density of 0.51g/cm3The bearing strength is 46MPa, and the buoyancy can be provided by 490kg/m3The depth of service is below 4000 m.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A solid buoyant material comprising the following components:
hollow glass microspheres: 90-99 wt%
Organic resin binder: 1-10 wt%;
reinforcing agent: 0 to 1 wt%.
Preferably, the solid buoyant material comprises the following components:
hollow glass microspheres: 92-98 wt%;
organic resin binder: 2-8 wt%;
reinforcing agent: 0.01-1 wt%.
2. The solid buoyancy material is prepared from the following raw materials:
hollow glass microspheres: 100 parts of (A);
organic resin binder: 1-10 parts;
volatile organic solvent: 20-200 parts of a solvent;
reinforcing agent: 0-1 part.
Preferably, the raw materials for preparing the solid buoyancy material comprise the following components:
hollow glass microspheres: 100 parts of (A);
organic resin binder: 1-9 parts;
volatile organic solvent: 40-150 parts;
reinforcing agent: 0.01-1 part.
3. The solid buoyancy material according to claim 1 or 2, wherein the mass ratio of the hollow glass microspheres in the solid buoyancy material is 90-99 wt%, and the mass ratio of the organic resin binder is 1-10 wt%.
Preferably, the apparent density of the solid buoyant material is 0.1-0.6g/cm3(ii) a The compressive strength is 0.5-50 MPa.
Preferably, the buoyancy provided by the solid buoyancy material is 400-900kg/m3。
4. The solid buoyant material of any one of claims 1-3, wherein the organic resin based binder comprises an organic resin and optionally an auxiliary agent; the organic resin is at least one selected from epoxy resin, phenolic resin and polyurethane resin.
Preferably, the organic resin-based adhesive is at least one selected from the group consisting of an epoxy resin-based adhesive, a phenol resin-based adhesive and a urethane resin-based adhesive.
5. A method of making the solid buoyant material of any one of claims 1-4 comprising the steps of:
mixing an organic resin adhesive, a volatile organic solvent and hollow glass microspheres according to a certain mass ratio, drying, removing the volatile organic solvent, heating and curing to prepare the solid buoyancy material.
6. The production method according to claim 5, wherein the method comprises the steps of:
(1) mixing an organic resin adhesive, a volatile organic solvent and an optional reinforcing agent to prepare a mixed system;
(2) mixing the mixed system and the hollow glass microspheres, and pouring the mixture into a mold;
(3) and (3) drying the material obtained in the step (2) to volatilize the volatile organic solvent, and then heating and curing to obtain the solid buoyancy material.
7. The production method according to claim 5 or 6, wherein in the step (1), the volatile organic solvent is at least one selected from ethanol, acetone, and methanol.
Preferably, in step (1), the reinforcing agent is selected from nanoparticles and chopped fibers; for example selected from nano-sized white carbon black and chopped carbon fibers.
8. The production method according to any one of claims 5 to 7, wherein, in the step (2), after the casting into the mold, a vacuum defoaming treatment is performed, for example, the casting is performed in a vacuum forming tank to obtain a mixed material; for example, the vacuum degree of the vacuum defoaming treatment is-0.05 to-0.1 MPa, and the time is 10 to 24 hours.
Preferably, in the step (2), after the casting into the mold, it is vibrated for a certain time. For example, on a vibrating table, and vibrated for a certain period of time.
Preferably, the vibration is performed after the vacuum defoaming.
9. The production method according to any one of claims 5 to 8, wherein, in the step (3), the drying is carried out in an electrically heated constant temperature forced air drying oven.
Preferably, in the step (3), the drying can be performed by controlling the drying temperature and the flow rate of the circulating air flow, the temperature of the oven is 15-200 ℃, the flow rate of the circulating air flow in the oven is 0.5-10m/s, and the drying time is 30min-48 h.
10. Use of the buoyant solid material according to any one of claims 1-4 in the field of marine exploration or marine buoyant solid material, preferably in water at a depth of 50-5000 meters.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3622780A1 (en) * | 1986-07-07 | 1988-01-21 | Hohnholz August Fa | Heat-insulating, light-transparent composite element containing plastic-bound hollow elements, and agent and process for the production thereof |
| CN103483774A (en) * | 2013-09-24 | 2014-01-01 | 滕州市华海新型保温材料有限公司 | High-performance solid buoyancy material and preparation method thereof |
| CN103483773A (en) * | 2013-09-24 | 2014-01-01 | 滕州市华海新型保温材料有限公司 | Deep-sea solid buoyancy material and manufacture method thereof |
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2019
- 2019-12-30 CN CN201911403685.3A patent/CN113121956B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3622780A1 (en) * | 1986-07-07 | 1988-01-21 | Hohnholz August Fa | Heat-insulating, light-transparent composite element containing plastic-bound hollow elements, and agent and process for the production thereof |
| CN103483774A (en) * | 2013-09-24 | 2014-01-01 | 滕州市华海新型保温材料有限公司 | High-performance solid buoyancy material and preparation method thereof |
| CN103483773A (en) * | 2013-09-24 | 2014-01-01 | 滕州市华海新型保温材料有限公司 | Deep-sea solid buoyancy material and manufacture method thereof |
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