CN113352713A - Resin film aerogel composite thermal insulation material bonded in viscous state and preparation method thereof - Google Patents
Resin film aerogel composite thermal insulation material bonded in viscous state and preparation method thereof Download PDFInfo
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- CN113352713A CN113352713A CN202010142938.2A CN202010142938A CN113352713A CN 113352713 A CN113352713 A CN 113352713A CN 202010142938 A CN202010142938 A CN 202010142938A CN 113352713 A CN113352713 A CN 113352713A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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Abstract
The invention relates to a viscous-state bonded resin film-aerogel composite thermal insulation material and a preparation method thereof. The essence of the technology of the invention is to realize the bonding without chemical additive and chemical reaction by utilizing the characteristics of high melting point of the silicon dioxide aerogel and low viscous state temperature of the resin film, thus solving the problem that the silicon dioxide aerogel material is difficult to form. The invention has the advantages of environmental protection, easy processing, low cost and easy popularization, and can be applied to the fields of clothing, building heat preservation, agriculture, heat preservation packaging and the like.
Description
Technical Field
The invention relates to a resin film-aerogel composite thermal insulation material bonded in a viscous state and a preparation method thereof.
Background
The resin film is a film made of resin and has many excellent properties such as light weight, softness, good extensibility, water resistance, and the like. The product is widely applied to the fields of agriculture, clothing, food, medicine, chemical industry, electronics, product packaging, buildings and the like, and the products bring great convenience to the life of people. Taking agriculture as an example, the resin film can be used as a mulching film and a greenhouse film to provide possibility for winter planting in northern cold areas. Taking the garment as an example, the resin film can be directly used as a garment fabric or compounded with the garment fabric to manufacture the garment.
Silica aerogel is the lightest solid material and the best performance thermal insulation material known to date, the pore size of which is lower than the mean free path of air molecules under normal pressure, so that the air molecules are approximately static in the aerogel gaps, thereby avoiding the convective heat transfer of air, and the extremely low volume density and the curved path of the nano-grid structure of the aerogel also prevent the gaseous and solid heat conduction, and the wall of the gap tending to be 'infinite' can reduce the heat radiation to the minimum. These three aspects work together to block almost all paths of heat transfer, so that the aerogel achieves incomparable heat insulation effect compared with other materials, even the thermal conductivity coefficient is far lower than 0.023W/m.K of air at normal temperature, and can achieve less than 0.013W/m.K.
Meanwhile, the silicon dioxide aerogel is the product with the lowest cost and the highest degree of productization in the aerogel product. The raw materials of the silicon dioxide aerogel in the market at present are mainly powder, but the silicon dioxide aerogel is applied to production and living scenes and needs a corresponding process from powder to molding. The aerogel plastic products mainly comprise aerogel felts of aerogel and glass fiber and aerogel plastic products of aerogel and resin. The glass fiber-aerogel composite material is adopted, and the glass fiber has very small diameter, so that the glass fiber is easy to damage the skin and the lung of a human body in the processing and application processes. The traditional resin processing technology is carried out by compounding the resin raw material and the aerogel, and as the aerogel has poorer pressure resistance, a large amount of pores can be lost in the extrusion, injection molding and mould pressing processes of resin forming, so that various performance indexes of the aerogel are sharply reduced.
The resin film belongs to one of amorphous polymers, a molecular chain and a molecular chain segment of a glass state can not move at normal temperature and can be in a solid form, the glass state is converted into a high-elasticity state firstly by heating the resin film, the high-elasticity resin film can deform under the action of external force and can still recover the original appearance after being removed from the external force, if the resin film is continuously heated, the high-elasticity state is converted into a viscous state, the viscous state resin shows viscous flow characteristics because the molecular chain can move, and the resin film can be integrally deformed and flows in the viscous state.
The resin film-aerogel composite thermal insulation material bonded in the viscous state and the preparation method thereof combine the excellent thermal insulation advantages of the silicon dioxide aerogel and have the performance characteristics of softness, good ductility and the like of the resin film. Has the following principle advantages:
1. the resin film-aerogel composite thermal insulation material bonded in the viscous state and the preparation method thereof adopt the physical heating of the resin to the viscous state to carry out physical bonding with the silicon dioxide aerogel, and have no chemical reaction and no volatile adhesive, thereby having good environmental protection effect.
2. The resin film-aerogel composite thermal insulation material bonded in the viscous state and the preparation method thereof can be applied to any existing commercial resin film product, so that the material has the advantages of strong universality and wide application range.
3. The resin film-aerogel composite thermal insulation material bonded in the viscous state and the preparation method thereof further enhance the thermal insulation performance of the resin film by adopting the excellent thermal insulation performance of the silicon dioxide aerogel, so that the thermal insulation material has a good performance improvement effect.
4. The resin film-aerogel composite thermal insulation material bonded in the viscous state and the preparation method thereof have the characteristics of simple equipment structure and simple process, thereby having the popularization advantage of low cost.
5. The viscous-flow-state-bonded resin film-aerogel composite thermal insulation material is applied to the field of thermal insulation packaging, can greatly improve the thermal insulation effect of an insulation can and an insulation bag, and can be used for preparing ultrathin thermal insulation packaging materials, so that the logistics space is saved, the logistics cost is reduced, and the portability of the thermal insulation packaging materials is improved.
6. The resin film-aerogel composite thermal insulation material bonded in the viscous state is applied to the thermal insulation clothing industry, can realize a light and thin aerogel composite structure at lower cost, can form a thermal insulation material with multiple closed air chambers and silica aerogel thermal insulation composite after stacking multiple layers of resin film-aerogel composite thermal insulation materials, and can greatly improve the thermal insulation performance of clothing and reduce the production cost.
Therefore, the resin film-aerogel composite thermal insulation material bonded in a viscous state and the preparation method thereof have the advantages of low price, high performance and simple process and have wide practical value and commercial value.
Disclosure of Invention
The method aims to solve the problems of dispersion and forming of the light and thin silica aerogel product, avoid the problem of pollution of volatile components of a chemical adhesive, reduce the use of the adhesive, further reduce the cost and enhance the heat-insulating capacity of the resin film. According to the invention, according to the high melting point characteristic of the silicon dioxide aerogel and the relatively low viscous state phase change temperature characteristic of the resin film, the silicon dioxide aerogel still keeps a solid state when the base material and the resin material in the surface covering resin film are locally heated to a viscous state, at the moment, the resin film locally begins to melt to thermally bond the solid silicon dioxide aerogel, the silicon dioxide aerogel material and the resin film generate binding force after cooling, and finally, the resin film-aerogel composite heat insulation material is prepared. The present invention has been accomplished based on such findings.
For realizing resin film-aerogel composite insulation material that viscous state bonds and preparation method thereof, including substrate, silica aerogel, surface covering resin film, the bottom is arranged in to the substrate, the silica aerogel forms silica aerogel layer in arranging substrate upper surface in, silica aerogel layer top is arranged in to surface covering resin film, the substrate passes through resin composition hot melt bonding in the substrate with silica aerogel, surface covering resin film passes through surface covering resin film composition hot melt bonding with silica aerogel.
Preferably, the base material is one or more of a polyvinyl chloride resin film, a polystyrene resin film, a polyethylene resin film, a polyurethane resin film, a polypropylene resin film, a polyvinyl chloride resin film, a phenolic resin film and a nylon resin film which are added with an auxiliary agent, or a composite material film of the resin film and silica aerogel, and the thickness of the film is 1 micron to 5 mm.
Preferably, the silica aerogel is one or a combination of two of a silica aerogel block and a silica aerogel powder; the content of silicon dioxide in the silicon dioxide aerogel component is more than or equal to 50 percent of the total mass of the silicon dioxide aerogel, and the content of impurities and reinforcing materials is less than or equal to 50 percent of the total mass of the silicon dioxide aerogel.
Preferably, the surface-coating resin film is one or a combination of a plurality of polyvinyl chloride resin films, polystyrene resin films, polyethylene resin films, polyurethane resin films, polypropylene resin films, polyvinyl chloride resin films, phenol resin films and nylon resin films to which an auxiliary agent has been added, and the film thickness is between 1 micron and 5 millimeters.
Preferably, the method comprises the following steps:
s1: (unfolding process) flattening the substrate by a mechanical flattening mechanism and realizing horizontal motion;
s2: (dispersion process) dispersing the silica aerogel on the surface of the base material by an aerogel dispersion process;
s3: (first heating) heating from the silica aerogel side to the silica aerogel which has been dispersed or from the substrate side to the substrate to a set temperature by a heating means;
s4: (covering process) covering the surface-covering resin film onto the silica aerogel by a covering mechanism;
s5: (second heating) heating the covered surface-covering resin film from the surface-covering resin film side to a set temperature by a heating means;
s6: and (5) cooling to finish the manufacture of the resin film-aerogel composite thermal insulation material bonded in the viscous state, or repeating the process from S1 to S6 by taking the resin film-aerogel composite thermal insulation material bonded in the viscous state as a base material until the resin film-aerogel composite thermal insulation material meeting the requirement is produced.
Preferably, in S1, the substrate is flattened by a mechanical flattening mechanism, where the mechanical flattening mechanism is one or more of a roller mechanism, a winding mechanism, and a clamping mechanism; the flattening is one or the combination of tightening flattening and paving flattening.
Preferably, in S2, the silica aerogel is dispersed on the surface of the substrate by an aerogel dispersion process, wherein the aerogel dispersion process is one or more of manual dispersion, roller dispersion, wind dispersion, flat dispersion, vibration dispersion, and scattering dispersion.
Preferably, in S3, the silica aerogel dispersed in the silica aerogel side direction or the substrate side direction is heated to a set temperature by a heating device, wherein the heating device is one or more of hot air heating, infrared radiation heating and laser heating; the set temperature is greater than or equal to the viscous state transition temperature of a resin system adopted by the base material, and is preferably 100-300 ℃.
Preferably, in S4, the surface coating resin film is coated on the silica aerogel by a coating mechanism, wherein the coating mechanism is one or more of a roller, a pressing plate and a rod-mounted coating mechanism.
Preferably, in S5, the covered surface-covering resin film is heated to a set temperature from the side of the surface-covering resin film by a heating device, wherein the heating device is one or more of hot air heating, infrared radiation heating and laser heating; the set temperature is greater than or equal to the viscous state transition temperature of a resin system adopted by the surface covering resin film, and is preferably 100-300 ℃.
As an improvement of the present invention, S4 (covering process) is directly performed after completion of S1 (spreading process) and S2 (dispersing process), S4 (covering process) is completed, S3 (first heating) is heated from the substrate side and S5 (second heating) is heated from the surface-covering resin film side, two sets of heating means are provided in the space while heating is performed, and then S6: (cooling) the whole process flow is completed, and the specific flow sequence is as follows:
s1: (unfolding process) flattening the substrate by a mechanical flattening mechanism and realizing horizontal motion;
s2: (dispersion process) dispersing the silica aerogel on the surface of the base material by an aerogel dispersion process;
s4: (covering process) covering the surface-covering resin film onto the silica aerogel by a covering mechanism;
s3: (first heating) heating from the substrate side to the substrate to a set temperature by a heating means;
s5: (second heating) heating the covered surface-covering resin film from the surface-covering resin film side to a set temperature by a heating means;
s6: and (5) cooling to finish the manufacture of the resin film-aerogel composite thermal insulation material bonded in the viscous state, or repeating the process from S1 to S6 by taking the resin film-aerogel composite thermal insulation material bonded in the viscous state as a base material until the resin film-aerogel composite thermal insulation material meeting the requirement is produced.
As an improvement of the present invention, in the case where the thermal conductivity of the base material is not good, S4 (covering process) is directly performed after completion of S1 (development process) and S2 (dispersion process), only S5 (second heating) is performed after completion of S4 (covering process) to heat from the surface covering resin film side, and then S6: (cooling) the whole process flow is completed, and the specific flow sequence is as follows:
s1: (unfolding process) flattening the substrate by a mechanical flattening mechanism and realizing horizontal motion;
s2: (dispersion process) dispersing the silica aerogel on the surface of the base material by an aerogel dispersion process;
s4: (covering process) covering the surface-covering resin film onto the silica aerogel by a covering mechanism;
s5: (second heating) heating the covered surface-covering resin film from the surface-covering resin film side to a set temperature by a heating means;
s6: and (5) cooling to finish the manufacture of the resin film-aerogel composite thermal insulation material bonded in the viscous state, or repeating the process of S1, S2, S4, S5 and S6 by taking the resin film-aerogel composite thermal insulation material bonded in the viscous state as a base material until the resin film-aerogel composite thermal insulation material meeting the requirement is produced.
Drawings
FIG. 1 is a schematic structural view of a viscous-state bonded resin film-aerogel composite thermal insulation material according to the present invention;
in the figure, a base material 1, silica aerogel 2, a surface covering resin film 3,
FIG. 2 is a schematic view of the viscous bonded resin film-aerogel composite insulation material and the preparation method thereof according to the present invention;
in the figure, a substrate 1, a silicon dioxide aerogel 2, a surface covering resin film 3, a heating device 4, a mechanical flattening mechanism 5 and a covering mechanism 6
Detailed Description
The present invention is further described in detail below with reference to specific examples so that those skilled in the art can practice the invention with reference to the description.
It is to be understood that terms such as "having," "including," and "comprises," as used herein, do not preclude the presence or addition of one or more other terms
The presence or addition of a single other element or combination thereof.
Example 1:
a resin film-aerogel composite thermal insulation material bonded in a viscous flow state and a preparation method thereof comprise the following steps:
s1 (unfolding process) taking 1 m wide and 100 micron thick high-density polyethylene film for cold storage packaging as a base material, tightening and horizontally flattening the film through a winding mechanism and a roller mechanism, and realizing horizontal movement;
s2 (dispersing process) dispersing the silica aerogel powder with the grain size of 50-100 microns and the silica content of more than 99.5 percent on the upper surface of the base material through a vibrating screen dispersing process;
s3 (first heating) heating the silicon dioxide aerogel powder to 160-170 ℃ from above the silicon dioxide aerogel powder by a baked infrared heating device because the melting point of the high density polyethylene is generally 140-170 ℃;
s4 (covering process) covering a polyvinyl chloride film with the width of 1 meter and the thickness of 80 microns on the upper surface of the dispersed silica aerogel powder layer through a roller covering mechanism;
s5 (second heating) heating the polyvinyl chloride film to 180-190 ℃ from the upper part of the polyvinyl chloride film by a hot air heating device because the melting point of the polyvinyl chloride is generally 180-200 ℃;
and S6 (cooling) to form the viscous state bonded resin film-aerogel composite thermal insulation material. And repeating the process from S1 to S6 for 4 times by taking the prepared resin film-aerogel composite thermal insulation material bonded in the viscous state as a base material to form the multilayer composite resin film-aerogel composite thermal insulation material.
Example 2:
a resin film-aerogel composite thermal insulation material bonded in a viscous flow state and a preparation method thereof comprise the following steps:
s1 (unfolding process) horizontally flattening a nylon film with the thickness of 40 microns and the width of 60 cm as a base material through a mechanical clamping mechanism and realizing horizontal movement;
s2 (dispersing process) dispersing silica aerogel powder containing 90% of silica and 10% of hollow glass beads with the particle size of 40-120 microns on the upper surface of the base material by a manual tiling and dispersing process;
s4 (covering process) covering a polypropylene film with a thickness of 50 microns and a width of 60 cm on the silica aerogel as a surface covering resin film through a roller covering mechanism;
s3 (first heating) heating the substrate to 190-200 ℃ from the lower part of the substrate by an infrared radiation device; s5 (second heating), heating the surface covering resin film to 185-195 ℃ from above by a hot air heating device; s5 (second heating) was carried out simultaneously with S3 (first heating),
and S6 (cooling) and then finishing the preparation of the resin film-aerogel composite thermal insulation material bonded in a viscous state.
Example 3:
a resin film-aerogel composite thermal insulation material bonded in a viscous flow state and a preparation method thereof comprise the following steps:
s1: (spreading process) using a 120-micron cast polypropylene film with the thickness of 2 m as a base material, horizontally flattening the film by using a winding mechanism and realizing horizontal movement;
s2: (dispersing process) dispersing the silicon dioxide aerogel powder with the particle size of 50-100 microns and the silicon dioxide content of more than 99.5 percent on the upper surface of the base material by a wind power dispersing process;
s4: (covering process) covering a polypropylene film with the thickness of 100 microns and the width of 2 meters on the upper surface of the silica aerogel powder layer as a surface covering resin film by using a roller covering mechanism;
s5: (second heating) heating the polyvinyl chloride film to 170-180 ℃ from the upper part of the polypropylene film by a laser heating device due to the melting point of the polypropylene which is generally 165-185 ℃;
s6: (cooling) cooling to finish the preparation of the resin film-aerogel composite thermal insulation material bonded in the viscous state, replacing the prepared resin film-aerogel composite thermal insulation material bonded in the viscous state with the 120-micron cast polypropylene film with the thickness of 2 meters as a base material, and repeating the process of S1, S2, S4, S5 and S6 for 5 times until the multilayer polypropylene film-aerogel composite thermal insulation material is produced.
Claims (10)
1. The resin film-aerogel composite thermal insulation material bonded in a viscous state and the preparation method thereof are characterized in that: including substrate, silica aerogel, surface covering resin film, the bottom is arranged in to the substrate, silica aerogel arranges the substrate upper surface in and forms silica aerogel layer, surface covering resin film arranges silica aerogel layer top in, the substrate passes through resin composition hot melt bonding in the substrate with silica aerogel, surface covering resin film passes through surface covering resin film composition hot melt bonding with silica aerogel.
2. The resin film-aerogel composite thermal insulation material bonded in a viscous state and the preparation method thereof are characterized in that: the base material is one or more of a polyvinyl chloride resin film, a polystyrene resin film, a polyethylene resin film, a polyurethane resin film, a polypropylene resin film, a polyvinyl chloride resin film, a phenolic resin film and a nylon resin film which are added with an auxiliary agent, or a composite material film of the resin film and silica aerogel, and the thickness of the film is 1 micrometer to 5 millimeters.
3. The resin film-aerogel composite thermal insulation material bonded in a viscous state and the preparation method thereof are characterized in that: the silicon dioxide aerogel is one or a combination of two of a silicon dioxide aerogel block and silicon dioxide aerogel powder; the content of silicon dioxide in the silicon dioxide aerogel component is more than or equal to 50 percent of the total mass of the silicon dioxide aerogel, and the content of impurities and reinforcing materials is less than or equal to 50 percent of the total mass of the silicon dioxide aerogel.
4. The resin film-aerogel composite thermal insulation material bonded in a viscous state and the preparation method thereof are characterized in that: the surface covering resin film is one or a combination of more of a polyvinyl chloride resin film, a polystyrene resin film, a polyethylene resin film, a polyurethane resin film, a polypropylene resin film, a polyvinyl chloride resin film, a phenolic resin film and a nylon resin film which are added with an auxiliary agent, and the thickness of the film is between 1 micron and 5 millimeters.
5. The resin film-aerogel composite thermal insulation material based on the viscous-state bonding of any one of claims 1 to 4 and the preparation method thereof are characterized by comprising the following steps:
s1: (unfolding process) flattening the substrate by a mechanical flattening mechanism and realizing horizontal motion;
s2: (dispersion process) dispersing the silica aerogel on the surface of the base material by an aerogel dispersion process;
s3: (first heating) heating from the silica aerogel side to the silica aerogel which has been dispersed or from the substrate side to the substrate to a set temperature by a heating means;
s4: (covering process) covering the surface-covering resin film onto the silica aerogel by a covering mechanism;
s5: (second heating) heating the covered surface-covering resin film from the surface-covering resin film side to a set temperature by a heating means;
s6: and (5) cooling to finish the manufacture of the resin film-aerogel composite thermal insulation material bonded in the viscous state, or repeating the process from S1 to S6 by taking the resin film-aerogel composite thermal insulation material bonded in the viscous state as a base material until the resin film-aerogel composite thermal insulation material meeting the requirement is produced.
6. The bonded resin film-aerogel composite insulation material in viscous state and method for preparing the same as claimed in claim 5, wherein in S1, the substrate is flattened by a mechanical flattening mechanism, wherein the mechanical flattening mechanism is one or more of a roller mechanism, a winding mechanism, and a clamping mechanism; the flattening is one or the combination of tightening flattening and paving flattening.
7. The viscous-state bonded resin film-aerogel composite thermal insulation material as claimed in claim 5, wherein in step S2, the silica aerogel is dispersed on the surface of the substrate by aerogel dispersion process, wherein the aerogel dispersion process is one or more selected from manual dispersion, roller dispersion, wind dispersion, tile dispersion, vibration dispersion and scattering dispersion.
8. The tie-bonded resin film-aerogel composite insulation material as claimed in claim 5, wherein in step S3, the silica aerogel is heated from the side of the dispersed silica aerogel or from the side of the substrate to a predetermined temperature by a heating device, wherein the heating device is one or more selected from the group consisting of hot air heating, infrared radiation heating, and laser heating; the set temperature is greater than or equal to the viscous state transition temperature of a resin system adopted by the base material, and is preferably 100-300 ℃.
9. The viscous-state bonded resin film-aerogel composite insulation material as claimed in claim 5, wherein in step S4, the surface coating resin film is coated on the silica aerogel by a coating mechanism, wherein the coating mechanism is one or more of a combination of a roller, a pressing plate and a rod-mounted coating mechanism.
10. The tie-bonded resin film-aerogel composite insulation material as claimed in claim 5, wherein in step S5, the covered surface resin film is heated from the side of the surface resin film to a predetermined temperature by a heating device, wherein the heating device is one or more of hot air heating, infrared radiation heating and laser heating; the set temperature is greater than or equal to the viscous state transition temperature of a resin system adopted by the surface covering resin film, and is preferably 100-300 ℃.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454574A (en) * | 2022-02-24 | 2022-05-10 | 西安理工大学 | Sheet aerogel/polystyrene composite material and preparation method thereof |
| CN114804818A (en) * | 2022-05-24 | 2022-07-29 | 巩义市泛锐熠辉复合材料有限公司 | Low-cost aerogel composite material and preparation method thereof |
-
2020
- 2020-03-04 CN CN202010142938.2A patent/CN113352713A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454574A (en) * | 2022-02-24 | 2022-05-10 | 西安理工大学 | Sheet aerogel/polystyrene composite material and preparation method thereof |
| CN114804818A (en) * | 2022-05-24 | 2022-07-29 | 巩义市泛锐熠辉复合材料有限公司 | Low-cost aerogel composite material and preparation method thereof |
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Application publication date: 20210907 |