CN113698886A - Aerogel composite material for cooling ship pipeline and preparation method thereof - Google Patents
Aerogel composite material for cooling ship pipeline and preparation method thereof Download PDFInfo
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- C09J7/00—Adhesives in the form of films or foils
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
- C09J2301/162—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only
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- C09J2423/00—Presence of polyolefin
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- C09J2423/046—Presence of homo or copolymers of ethene in the substrate
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Abstract
The invention relates to the technical field of aerogel, in particular to an aerogel composite material for cooling ship pipelines and a preparation method thereof. The aerogel composite material consists of an aerogel layer and a glue film, wherein the aerogel layer is prepared by mixing alumina aerogel with better heat insulation and cold insulation properties and polyethylene resin; the adhesive film comprises an adhesive layer and a film layer, wherein the adhesive layer is prepared by mixing epoxy resin and water-based acrylic acid, and the film layer comprises the following raw materials: polyethylene resin, fire-retardant powder, filler powder and tinting powder, in this marine pipeline keeps warm aerogel combined material and the preparation method, with viscose layer, aerogel layer and rete surface melting and blending, thereby form multilayer aerogel combined material, viscose layer can laminate with the pipeline lateral wall, but higher cohesiveness anti-drop, the rete can be used to viscose layer, aerogel layer protects, has higher intensity and toughness, and aerogel layer has the cold-proof effect, intensity and toughness are higher than ordinary aerogel simultaneously.
Description
Technical Field
The invention relates to the technical field of aerogel, in particular to an aerogel composite material for cooling ship pipelines and a preparation method thereof.
Background
The ship pipeline is used for connecting various mechanical equipment on a ship and is used for conveying related working media such as water, oil, gas and the like; therefore, the aerogel material is needed to cool the pipeline; the aerogel is a light solid material which is formed by accumulating nano-scale particles and has nano-scale holes, has extremely high porosity and specific surface area, extremely low density and solid content, chemical inertness and incombustibility, shows excellent characteristics of light weight, heat preservation, heat insulation, fire prevention, sound insulation, shock absorption and energy absorption, and can be widely applied to military fields of national defense and military industry, security and antiterrorism and the like and civil fields of green buildings, heat transmission, public transportation, financial equipment protection and the like.
The general toughness of current aerogel is relatively poor, and intensity is low, when being applied to the pipeline surface, though can play cold insulation effect, nevertheless very easily suffer to break and damage, consequently needs a neotype aerogel combined material to improve prior art not enough.
Disclosure of Invention
The invention aims to provide an aerogel composite material for cooling ship pipelines and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the above object, in one aspect, the present invention provides an aerogel composite material for cooling marine pipelines, the aerogel composite material is composed of an aerogel layer and a glue film, the aerogel layer is prepared by mixing alumina aerogel with good heat insulation and cold insulation properties and polyethylene resin;
the adhesive film comprises an adhesive layer and a film layer, wherein the adhesive layer is prepared by mixing epoxy resin and water-based acrylic acid, and the film layer comprises the following raw materials: 40-60% of polyethylene resin, 1-5% of flame-retardant powder, 20-30% of filler powder and 1-5% of coloring powder.
As a further improvement of the technical scheme, the flame-retardant powder is formed by mixing gas-phase antimony trioxide and gas-phase magnesium hydroxide in a ratio of 1:1, and the gas-phase flame-retardant powder is mixed with the adhesive film material, so that the flame retardance of the adhesive film is improved, and the strength of the adhesive film is improved.
As a further improvement of the technical scheme, the filler powder is selected from one or more of glass fiber, asbestos, diatomite, perlite powder, cork powder, talcum powder and calcium carbonate, and the added filler powder can not only enhance the toughness of the adhesive film, but also improve the heat insulation property of the adhesive film.
As a further improvement of the technical scheme, the coloring powder is selected from gas-phase titanium dioxide, is used for coloring the adhesive film and has a certain heat insulation effect.
In another aspect, the present invention provides a method for preparing the aerogel composite material for cooling ship pipelines, comprising the following steps:
s1, adding the alumina aerogel powder and the polyethylene resin into a stirring kettle, and heating and uniformly mixing to obtain a mixture;
s2, adding epoxy resin into a stirring kettle, heating and melting, adding water-based acrylic acid into the solution according to a proportion, mixing and stirring to obtain a glue solution;
s3, adding polyethylene resin into a stirring kettle for melting, then sequentially adding flame retardant powder, filler and dispersant for stirring and mixing, and then adding coloring powder for coloring to obtain a film material;
s4, respectively extruding the mixture, the glue solution and the film material through a film blowing machine to obtain an aerogel layer, a glue layer and a film layer;
and S5, downwards arranging the adhesive layer, sequentially laying the aerogel layer and the film layer, heating at high temperature to melt and blend the surfaces of the adhesive layer, the aerogel layer and the film layer, and finally flattening by a roller press to obtain the aerogel composite material.
Preferably, in S1, the mixing ratio of the alumina aerogel and the polyethylene resin is 1: 1.5.
Preferably, in S2, the mixing ratio of the epoxy resin to the aqueous acrylic acid is 2: 1.
Preferably, in the S4, the thickness of the aerogel layer is 0.03 to 0.05mm, the thickness of the glue layer is 0.05 to 0.1mm, and the thickness of the film layer is 0.2 to 0.3 mm.
Preferably, in the S5, the heating temperature is 300-1000 ℃.
Preferably, in the S5, the film pressing speed of the roller press is 0.5-1.0 m/S.
Compared with the prior art, the invention has the beneficial effects that:
in this marine pipeline keeps cold and uses aerogel combined material and preparation method, with viscose layer, aerogel layer and rete surface melting and blending to form multilayer aerogel combined material, the viscose layer can laminate with the pipeline lateral wall, but higher cohesiveness anti-drop, the rete can be used to protect viscose layer, aerogel layer, has higher intensity and toughness, and aerogel layer has the cold-keeping effect, and intensity and toughness are higher than ordinary aerogel simultaneously.
Drawings
FIG. 1 is an overall flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1 a aerogel composite material for cooling ship pipelines and a preparation method thereof, including:
1. adding the alumina aerogel powder and the polyethylene resin into a stirring kettle according to the proportion of 1:1.5, and heating and uniformly mixing to obtain a mixture;
2. adding epoxy resin into a stirring kettle, heating and melting, adding aqueous acrylic acid into the solution according to the ratio of 2:1, and mixing and stirring to obtain a glue solution;
3. adding 60% of polyethylene resin into a stirring kettle for melting, then sequentially adding 1% of flame retardant powder, 20% of filler and a dispersing agent, stirring and mixing, and then adding 3% of coloring powder for coloring to prepare a film material;
4. respectively extruding the mixture, the glue solution and the film material through a film blowing machine to prepare an aerogel layer, an adhesive layer and a film layer, wherein the thickness of the aerogel layer is 0.03-0.05mm, the thickness of the adhesive layer is 0.05-0.1 mm, and the thickness of the film layer is 0.2-0.3 mm;
5. and (3) downwards arranging the adhesive layer, sequentially laying the aerogel layer and the film layer, heating to 300-1000 ℃ to melt and blend the surfaces of the adhesive layer, the aerogel layer and the film layer, and finally flattening by using a roller press to obtain the aerogel composite material, wherein the film pressing speed of the roller press is 0.5-1.0 m/S.
Embodiment 2 a marine pipeline cold insulation aerogel composite material and a preparation method thereof, including:
1. adding the alumina aerogel powder and the polyethylene resin into a stirring kettle according to the proportion of 1:1.5, and heating and uniformly mixing to obtain a mixture;
2. adding epoxy resin into a stirring kettle, heating and melting, adding aqueous acrylic acid into the solution according to the ratio of 2:1, and mixing and stirring to obtain a glue solution;
3. adding 50% of polyethylene resin into a stirring kettle for melting, then sequentially adding 3% of flame retardant powder, 25% of filler and a dispersing agent, stirring and mixing, and then adding 3% of coloring powder for coloring to prepare a film material;
4. respectively extruding the mixture, the glue solution and the film material through a film blowing machine to prepare an aerogel layer, an adhesive layer and a film layer, wherein the thickness of the aerogel layer is 0.03-0.05mm, the thickness of the adhesive layer is 0.05-0.1 mm, and the thickness of the film layer is 0.2-0.3 mm;
5. and (3) downwards arranging the adhesive layer, sequentially laying the aerogel layer and the film layer, heating to 300-1000 ℃ to melt and blend the surfaces of the adhesive layer, the aerogel layer and the film layer, and finally flattening by using a roller press to obtain the aerogel composite material, wherein the film pressing speed of the roller press is 0.5-1.0 m/S.
Embodiment 3 a marine pipeline cold insulation aerogel composite material and a preparation method thereof, including:
1. adding the alumina aerogel powder and the polyethylene resin into a stirring kettle according to the proportion of 1:1.5, and heating and uniformly mixing to obtain a mixture;
2. adding epoxy resin into a stirring kettle, heating and melting, adding aqueous acrylic acid into the solution according to the ratio of 2:1, and mixing and stirring to obtain a glue solution;
3. adding 40% of polyethylene resin into a stirring kettle for melting, then sequentially adding 5% of flame retardant powder, 30% of filler and dispersant, stirring and mixing, and then adding 5% of coloring powder for coloring to obtain a film material;
4. respectively extruding the mixture, the glue solution and the film material through a film blowing machine to prepare an aerogel layer, an adhesive layer and a film layer, wherein the thickness of the aerogel layer is 0.03-0.05mm, the thickness of the adhesive layer is 0.05-0.1 mm, and the thickness of the film layer is 0.2-0.3 mm;
5. and (3) downwards arranging the adhesive layer, sequentially laying the aerogel layer and the film layer, heating to 300-1000 ℃ to melt and blend the surfaces of the adhesive layer, the aerogel layer and the film layer, and finally flattening by using a roller press to obtain the aerogel composite material, wherein the film pressing speed of the roller press is 0.5-1.0 m/S.
In the above examples 1-3, the flame retardant powder is a mixture of gaseous antimony trioxide and gaseous magnesium hydroxide at a ratio of 1:1, and the flame retardant powder is mixed with the adhesive film material to improve the flame retardancy and strength of the adhesive film;
the filler powder is selected from one or more of glass fiber, asbestos, diatomite, perlite powder, cork powder, talcum powder and calcium carbonate, and the added filler powder can not only enhance the toughness of the adhesive film, but also improve the heat insulation property of the adhesive film;
the coloring powder is selected from gas-phase titanium dioxide, is used for coloring the adhesive film and has a certain heat insulation effect.
The indexes of the aerogel composite material for cold insulation of the ship pipeline prepared by the invention are shown in table 1:
TABLE 1
| Compressive strength (Mpa) | Breaking strength (Mpa) | Coefficient of thermal conductivity (W/m. K) | Tensile bond Strength (Mpa) | Peel strength (Mpa) | |
| Example 1 | 3.2 | 2.4 | 0.035 | 69 | 23 |
| Example 2 | 3.5 | 2.9 | 0.033 | 74 | 27 |
| Example 3 | 3.3 | 2.6 | 0.033 | 71 | 24 |
As shown in Table 1, the aerogel composites for cooling ship pipelines, prepared in examples 1 to 3 of the present invention, all had good strength and toughness, and at the same time, had excellent cooling performance.
Comparative example 1 an aerogel composite and method of making, comprising:
1. adding the alumina aerogel powder and the polyethylene resin into a stirring kettle according to the proportion of 1:1.5, and heating and uniformly mixing to obtain a mixture;
2. adding epoxy resin into a stirring kettle, heating and melting, adding aqueous acrylic acid into the solution according to the ratio of 2:1, and mixing and stirring to obtain a glue solution;
3. respectively extruding the mixture and the glue solution through a film blowing machine to prepare an aerogel layer and an adhesive layer, wherein the thickness of the aerogel layer is 0.03-0.05mm, and the thickness of the adhesive layer is 0.05-0.1 mm;
4. and (3) downwards placing the adhesive layer, laying the aerogel layer, melting and blending the surfaces of the adhesive layer and the aerogel layer by heating at the temperature of 300-1000 ℃, and finally flattening by using a roller press to obtain the aerogel composite material, wherein the film pressing speed of the roller press is 0.5-1.0 m/S.
Comparative example 2 an aerogel composite and method of making, comprising:
1. adding the alumina aerogel powder and the polyethylene resin into a stirring kettle according to the proportion of 1:1.5, and heating and uniformly mixing to obtain a mixture;
2. adding 50% of polyethylene resin into a stirring kettle for melting, then sequentially adding 3% of flame retardant powder, 25% of filler and a dispersing agent, stirring and mixing, and then adding 3% of coloring powder for coloring to prepare a film material;
3. respectively extruding the mixture and the membrane material through a membrane blowing machine to prepare an aerogel layer and a membrane layer, wherein the thickness of the aerogel layer is 0.03-0.05mm, and the thickness of the membrane layer is 0.2-0.3 mm;
5. and laying the film layer on the aerogel layer, heating to 300-1000 ℃ to melt and blend the aerogel layer and the film layer, and flattening by using a roller press to obtain the aerogel composite material, wherein the film pressing speed of the roller press is 0.5-1.0 m/S.
The aerogel composite material for cold insulation of the ship pipeline, prepared by the invention, has better strength and viscosity, and has a larger relation with an added adhesive layer and a film layer, and in order to verify the related technical scheme, the applicant performs the following tests:
comparative examples 1 to 2: by adopting the method of embodiment 2, the prepared aerogel composite material is detected under the condition of respectively removing the adhesive layer and the film layer, and the specific indexes are shown in table 2:
TABLE 2
| Compressive strength (Mpa) | Breaking strength (Mpa) | Coefficient of thermal conductivity (W/m. K) | Tensile bond Strength (Mpa) | Peel strength (Mpa) | |
| Comparative example 1 | 1.2 | 0.8 | 0.051 | 74 | 27 |
| Comparative example 2 | 2.7 | 2.1 | 0.033 | 0 | 0 |
| Example 2 | 3.5 | 2.9 | 0.033 | 74 | 27 |
According to table 2, when the film layer was removed, the thermal conductivity of the aerogel composite material increased, and both the compressive strength and the flexural strength decreased greatly, and when the adhesive layer was removed, the aerogel composite material lost the cohesiveness, and at the same time, the compressive strength and the flexural strength decreased, so it can be seen that the aerogel composite material prepared in the present invention had better strength and adhesiveness.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a marine vessel pipeline keeps cold and uses aerogel combined material which characterized in that: the aerogel composite material consists of an aerogel layer and a glue film, wherein the aerogel layer is prepared by mixing alumina aerogel and polyethylene resin;
the adhesive film comprises an adhesive layer and a film layer, wherein the adhesive layer is prepared by mixing epoxy resin and water-based acrylic acid, and the film layer comprises the following raw materials: 40-60% of polyethylene resin, 1-5% of flame-retardant powder, 20-30% of filler powder and 1-5% of coloring powder.
2. The aerogel composite for keeping marine pipelines cold as claimed in claim 1, wherein: the flame-retardant powder is formed by mixing gas-phase antimony trioxide and gas-phase magnesium hydroxide in a ratio of 1:1.
3. The aerogel composite for keeping marine pipelines cold as claimed in claim 1, wherein: the filler powder is selected from one or more of glass fiber, asbestos, diatomite, perlite powder, cork powder, talcum powder and calcium carbonate.
4. The aerogel composite for keeping marine pipelines cold as claimed in claim 1, wherein: the coloring powder is selected from vapor phase titanium dioxide.
5. A method for preparing the aerogel composite material for keeping the temperature of the ship pipeline as set forth in any one of claims 1 to 4, which comprises the steps of:
s1, adding the alumina aerogel powder and the polyethylene resin into a stirring kettle, and heating and uniformly mixing to obtain a mixture;
s2, adding epoxy resin into a stirring kettle, heating and melting, adding water-based acrylic acid into the solution according to a proportion, mixing and stirring to obtain a glue solution;
s3, adding polyethylene resin into a stirring kettle for melting, then sequentially adding flame retardant powder, filler and dispersant for stirring and mixing, and then adding coloring powder for coloring to obtain a film material;
s4, respectively extruding the mixture, the glue solution and the film material through a film blowing machine to obtain an aerogel layer, a glue layer and a film layer;
and S5, downwards arranging the adhesive layer, sequentially laying the aerogel layer and the film layer, heating at high temperature to melt and blend the surfaces of the adhesive layer, the aerogel layer and the film layer, and finally flattening by a roller press to obtain the aerogel composite material.
6. The method for preparing the aerogel composite material for cooling ship pipelines according to claim 5, wherein the method comprises the following steps: in S1, the mixing ratio of the alumina aerogel and the polyethylene resin is 1: 1.5.
7. The method for preparing the aerogel composite material for cooling ship pipelines according to claim 5, wherein the method comprises the following steps: in the S2, the mixing ratio of the epoxy resin to the water-based acrylic acid is 2: 1.
8. The method for preparing the aerogel composite material for cooling ship pipelines according to claim 5, wherein the method comprises the following steps: in the S4, the thickness of the aerogel layer is 0.03-0.05mm, the thickness of the glue layer is 0.05-0.1 mm, and the thickness of the film layer is 0.2-0.3 mm.
9. The method for preparing the aerogel composite material for cooling ship pipelines according to claim 5, wherein the method comprises the following steps: in the S5, the heating temperature is 300-1000 ℃.
10. The method for preparing the aerogel composite material for cooling ship pipelines according to claim 5, wherein the method comprises the following steps: in the S5, the film pressing speed of the roller press is 0.5-1.0 m/S.
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| CN106079778A (en) * | 2016-07-28 | 2016-11-09 | 南京纳世新材料有限责任公司 | Aeroge sound insulation thermal insulation adhesive tape and preparation method thereof |
| CN110696453A (en) * | 2019-11-15 | 2020-01-17 | 上海泉欣织造新材料股份有限公司 | Aerogel-containing heat insulation cotton and production process thereof |
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