CN108625737B - Composite glass with built-in aerogel and preparation method thereof - Google Patents
Composite glass with built-in aerogel and preparation method thereof Download PDFInfo
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- CN108625737B CN108625737B CN201710162203.4A CN201710162203A CN108625737B CN 108625737 B CN108625737 B CN 108625737B CN 201710162203 A CN201710162203 A CN 201710162203A CN 108625737 B CN108625737 B CN 108625737B
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/6612—Evacuated glazing units
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/08—Joining glass to glass by processes other than fusing with the aid of intervening metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
- E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
- E06B3/6715—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/673—Assembling the units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/249—Glazing, e.g. vacuum glazing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/22—Glazing, e.g. vaccum glazing
Abstract
The invention provides a composite glass with an aerogel arranged inside, which comprises a glass sealing body and a vacuum air extractor arranged on the glass sealing body, wherein the glass sealing body consists of two pieces of glass, an interval supporting body between the two pieces of glass and an aerogel supporting body arranged in a glass cavity, and a U-shaped sealing part formed between the two pieces of glass and the interval supporting body is connected through a low-temperature sealing material. The manufacturing method comprises the steps of laying a support, sealing and vacuumizing. The composite glass with the aerogel arranged therein disclosed by the invention has better heat insulation and light transmission, and is suitable for the fields of doors and windows, curtain wall glass, daylighting roofs and the like of green buildings, ultralow-energy buildings and near-zero-energy buildings.
Description
Technical Field
The invention relates to the technical field of glass preparation, in particular to composite glass with a built-in aerogel and a preparation method thereof.
Background
In the prior art, glass used for buildings is mainly used for sealing, lighting and heat preservation. However, in winter in cold areas, the heat insulation effect of glass is not ideal, and in summer in hot-summer and cold-winter areas or hot-summer and warm-winter areas, the heat insulation effect of glass is not ideal. Along with the high-speed development of economy in China, the requirements of people on life quality are higher and higher, the areas of doors, windows and glass curtain walls of buildings are larger and larger, and the proportion of heat exchange through the doors, the windows and the glass curtain walls in heat exchange between the buildings and the outside is larger and larger. In order to reduce the heat exchange through glass doors, windows and curtain walls, a plurality of heat insulation glass is developed at home and abroad in recent years, and the glass mainly comprises three types according to the structure: (1) hollow glass composed of two or more layers of ordinary glass; (2) hollow glass formed by glass plated with low-radiation films; (3) the vacuum glass is formed by pumping negative pressure from a support body arranged at the middle of double-layer glass. The heat transfer coefficient of the hollow glass is high, and the sealing quality is determined by the service life of the hollow glass; the low-radiation coated glass can prevent sunlight from entering a room to the maximum extent in summer and prevent far infrared radiation from the outside to the maximum extent, but is obviously not suitable for preventing outdoor heat energy from entering the room in winter needing heating, and influences the transmittance of visible light. The vacuum glass is one of ideal energy-saving glass due to the excellent heat preservation performance and the characteristics of thinness, lightness and the like. However, due to the fact that the point supporting bodies are arranged in the vacuum cavity, local stress concentration is easy to cause, the impact resistance is reduced, potential safety hazards exist, the point supporting bodies form a thermal bridge, further reduction of the heat transfer coefficient of the vacuum glass is further limited, and the theoretical limit value cannot be reached. In addition, the increase of the thickness of the vacuum layer is beneficial to further reducing the limit level of the heat transfer coefficient, but the sealing thickness of the cavity is difficult to break through 1mm due to the limitation of the existing vacuum glass sealing technology. Therefore, there is a need to develop energy-saving glass having an energy-saving effect comparable to that of vacuum glass and higher safety.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the composite glass with the built-in aerogel and the preparation method thereof have the advantages that the energy-saving effect can be comparable to that of vacuum glass, the safety is higher, the composite glass with the built-in aerogel produced by the preparation method has good heat insulation and heat preservation performance and light transmission performance, the safety performance is excellent, and the composite glass can be widely applied to the fields of doors and windows, curtain wall glass, lighting roofs and the like of green buildings, ultra-low energy consumption green buildings, near-zero energy consumption green buildings and the like.
The solution of the invention is: (1) and adopting a low-temperature sealing technology of a preset interval support body. Researches find that the sealing thickness of the existing vacuum glass cavity is difficult to break through 1mm, and is mainly limited by the capillary force of a gap, the capillary force cannot meet the requirement that the molten sealing material is limited in the gap formed by two pieces of glass, the satisfactory sealing quality cannot be obtained, and the product percent of pass is low. In order to realize the sealing of the large-gap vacuum glass, the interval support body is placed in the welding line in advance, and then the sealing material is placed between the glass and the interval support body, so that the sealing problem of the large-gap vacuum glass is solved. In addition, by arranging the spacing support body, the mechanical property of the vacuum glass can be improved through composite strengthening. (2) Adopts a transparent heat-insulating surface support body technology. The transparent aerogel with super thermal-insulated heat preservation performance of itself is used as vacuum glass's supporter, replaces traditional some supporter, is about to traditional some support converts the face into and supports, eliminates the local stress concentration problem that produces because of some supporter from the root to show improvement intracavity negative pressure glass's security performance. In addition, the aerogel support body with ultralow heat conductivity coefficient replaces the traditional support body, and the reasons for the replacement can be reducedThe heat transfer coefficient limit of the vacuum glass is further reduced by a heat bridge effect caused by the traditional support body with higher heat conductivity coefficient. (3) The synergistic effect technology of aerogel and negative pressure is adopted. The thermal conductivity coefficient of the aerogel under normal pressure is in the range of 0.010-0.015W/m.k. Researches find that the negative pressure technology and the nano size of the aerogel generate synergistic effect, the convective heat transfer of gas in pores of the aerogel in the cavity can be completely blocked, the heat conductivity coefficient of the aerogel can be reduced to be below 0.004W/m.k, the thickness of the aerogel is less than 5mm, and the heat insulation level of the vacuum glass (the heat transfer coefficient is about 0.5W/m) can be achieved2K) to solve the problem of thinning of energy-saving glass.
The solution of the invention is realized by the following steps: a preparation method of composite glass with an aerogel inside comprises the following steps:
(1) laying a support body, laying the aerogel support body on the glass, laying the interval support body on the peripheral edge of the glass, and then laying the other piece of glass on the aerogel support body and the interval support body;
(2) sealing, namely continuously filling a molten low-temperature sealing material into a U-shaped gap formed between two pieces of glass and the interval support body, and sealing and welding to obtain a glass sealing body containing the aerogel support body;
(3) and (4) vacuumizing, and exhausting the glass sealing body through a vacuum air exhaust device.
Therefore, through the steps, the aerogel composite glass which takes at least two pieces of glass as a shell, is provided with at least one sealed cavity of a vacuum air extractor and is internally provided with the aerogel support body can be obtained. The energy-saving effect of the aerogel composite glass with the built-in aerogel support body can be comparable to that of vacuum glass, and the transparent aerogel arranged in the aerogel composite glass has excellent heat insulation performance and few gas molecule convection heat phenomena caused by vacuum in the cavity, so that the obtained built-in aerogel composite glass has very excellent heat insulation performance. And the point support replacement that current vacuum glass was supported with glass's built-in aerogel supporter is for the face to support, and the security is higher, in addition, because the aerogel has better anti compressive deformation characteristic, can support effectively because of the compressive stress effect that the vacuum produced in the cavity, avoids stress concentration phenomenon simultaneously, is the super energy-conserving glass of a safe type. Therefore, the composite glass with the built-in aerogel produced by the preparation method not only has good heat insulation performance, but also has excellent safety performance, and also solves the problems that the aerogel support body is reinforced and edge-sealed by adopting a low-temperature sealing material when the thickness of the aerogel support body exceeds the thickness of the existing vacuum glass support body.
On the basis, the other technical scheme of the invention is that the surface of the glass sealing part is pretreated and moistened before the manufacturing step of the glass cavity body, and the method specifically comprises the following steps: cleaning the surface of the glass sealing part by using an acidic or alkaline solution, and coating a layer of wetting agent on the surface of the glass sealing part; the wetting agent is one or more of sodium dodecyl sulfate, lauryl sulfate, dialkyl sulfosuccinate, castor oil sulfate, alkyl pyridinium chloride, alkylphenol polyoxyethylene, polyoxyethylene alkyl ether, polyoxyethylene glycol alkyl ester and acetylene glycol. Thus, typically the acidic solution is H2SO4And HNO3The alkaline solution is NaOH or Na2CO3The surface of the sealing part of the glass 1 is firstly cleaned by acid solution or alkaline solution to achieve the purpose of removing oil stains and impurities, so that the next step of wetting treatment is facilitated; and then coating a layer of wetting agent on the surface of the glass sealing part after pretreatment to reduce the surface tension of the sealing part of the glass 1 so as to achieve the purpose of increasing the interface bonding strength between the glass surface and the low-temperature sealing material and further ensure the sealing property of the glass sealing part.
In another technical solution of the present invention, based on the above, the shape of the aerogel support is one or more of flat plate, granule, column, and irregular body. Wherein, the abnormal shape body is a cylinder and a flat-plate integrated molding structure. So, when the aerogel supporter is the graininess, fill up the cavity in order to play the supporting role through the close processing, when the aerogel supporter is other shapes, be full of the aerogel supporter or array distribution in the glass cavity, and thickness highly suits in order to play the supporting role with the cavity, from this with itself having super thermal-insulated thermal insulation performance in built-in aerogel composite glass inner chamber, the supporter is made to large-size transparent aerogel, realize multiple modes such as face supporting, the piece supports, the post supports, diversified support, avoided the thermal bridge phenomenon that leads to because of the higher tradition point of coefficient of heat transfer aerogel supporter on the one hand, the thermal-insulated thermal insulation performance of built-in aerogel composite glass has further been improved, on the other hand has thoroughly eliminated the condition that produces stress concentration from the root, thereby show improvement built-in composite glass's security performance.
Another technical solution of the present invention is that, on the basis of the above, the aerogel support material further comprises an aerogel support or an aerogel composite support having a low-density surface layer and a high-density core. Thus, the thermal conductivity of the aerogel is usually not less than 0.010W/m.k, and the heat transfer coefficient is controlled to the level of the heat transfer coefficient k of the vacuum glass (k value is about 0.5W/m.k)2K), the thickness of the traditional aerogel needs at least 15mm, the aerogel is cooperated with a negative pressure technology, the negative pressure technology and the nano size of the aerogel are implemented to generate a synergistic effect, the convection heat transfer of gas in pores of the aerogel in the cavity is completely blocked, and the heat conductivity coefficient of the aerogel is reduced to be below 0.004W/m.k, so that the thickness of the aerogel is greatly reduced, and the optimized thickness is 1 mm-5 mm. When the aerogel support body is low-density surface layer and high-density core, the aerogel support body with higher internal strength and elastic surface layer can be obtained, the requirement of slight expansion or contraction of a glass cavity caused by the ambient temperature in the use process of the glass can be met, and the excessive stress concentration of the aerogel support body is avoided; when the aerogel support body is the aerogel composite support body, the aerogel support body has good thermal insulation performance, and the compressive strength of the aerogel support body is enhanced.
Another technical solution of the present invention is to provide that, based on the above, the aerogel composite support body in the aerogel support body material further includes one or two of an aerogel/glass composite support body and an aerogel/resin composite support body. So, adopt aerogel and glass or resin composite technology, by light, the transparent aerogel that itself has excellent thermal-insulated heat preservation performance, the performance of making an uproar falls in the sound insulation, the energy-absorbing characteristic is as the functional component, use glass or resin to make the binder phase, the composite support body of aerogel and glass or resin that produces, have the excellent characteristic of aerogel and the good mechanical properties of glass or resin concurrently, both had good thermal-insulated heat preservation performance on the one hand, on the other hand can obtain good security performance and sound insulation again and fall the performance of making an uproar, in addition still has good mechanical properties.
Another technical solution of the present invention is that, on the basis of the above, a method for preparing the aerogel/glass composite support body in the aerogel support body material comprises:
(1) mixing materials, namely uniformly mixing glass powder and aerogel;
(2) melting, namely heating the glass powder in the mixture obtained in the step (1) to be melted to obtain semi-solid mixed glass melt;
(3) and (3) molding, namely pouring the mixed glass melt obtained in the step (2) into a mold, and cooling and solidifying.
Further, an annealing step may be performed after step (3).
Thus, through the steps, the aerogel/glass composite support body with heat insulation and preservation performance, which is composed of the aerogel and the glass phase bonded with the aerogel, can be obtained.
On the basis, the preparation method of the aerogel/resin composite support body in the aerogel support body comprises the following steps:
(1) mixing materials, namely uniformly mixing the aerogel and the resin powder;
(2) paving, namely paving a layer of mixture obtained in the step (1) on a mould substrate;
(3) melting, namely rapidly heating the resin powder in the mixture obtained in the step (2) to be molten in a step scanning mode by using a laser;
(4) and (3) alternately spreading and melting, and alternately repeating the step (2) and the step (3) on the previous deposition layer for solidification.
Thus, through the steps of mixing, paving, heating by a laser and the like, the aerogel/resin composite support body which is composed of aerogel and a resin phase bonding the aerogel and has heat insulation and preservation performance can be obtained.
On the basis, the other technical scheme of the invention is that a sealing step is also included between the sealing step and the vacuumizing step, and the sealing step specifically comprises the following steps: and sealing the peripheral edge of the glass sealing body by using a sealant. Therefore, double sealing is formed, and the sealing degree of the glass sealing body is further ensured.
On the basis, the other technical scheme of the invention is that the sealant is one of silicone sealant and polysulfide sealant. Thus, the silicone sealant and the polysulfide sealant have strong bonding force, high tensile strength, excellent weather resistance, vibration resistance and the like, and are particularly suitable for structural or non-structural adhesive assembly between glass or between glass and metal.
On the basis, when the sealing step is carried out in a vacuum environment, the subsequent vacuumizing step is not needed, and the vacuumizing step can be carried out to achieve a better effect.
On the basis, a transparent adhesive is arranged between the contact surfaces of the aerogel support body and the glass. So, use transparent gluing agent can be fixed with aerogel supporter and glass internal surface connection to play better supporting role.
On the basis, the low-temperature sealing material is low-temperature glass powder or a low-temperature metal edge sealing material. Therefore, the low-temperature sealing material is adopted for sealing, so that the annealing phenomenon of toughened glass or semi-toughened glass caused by overhigh sealing temperature can be avoided, and the physical property of the toughened glass or the semi-toughened glass is reduced; the sealing welding of the glass and the spacer is realized by carrying out the melt sealing through the low-temperature glass powder or the low-temperature metal edge sealing material, and the requirement of high vacuum degree is met, so that the service life of the built-in aerogel composite glass is effectively prolonged.
On the basis, the other technical scheme of the invention is that the low-temperature metal edge sealing material in the low-temperature sealing material is one of indium, indium alloy, tin and tin alloy. Thus, the melting point of low temperature metals such as indium, indium alloys, tin alloys, etc. generally does not exceed the annealing temperature of the glass.
On the basis, one or more of metal strips, metal nets or metal wires are arranged in the low-temperature sealing material. Therefore, the metal strip, the metal net or the metal wire is arranged in the sealing edge, on one hand, the melting point of the metal strip, the metal net or the metal wire is higher than that of the low-temperature sealing material, and the glass to be sealed is heated, so that the temperature of the metal strip, the metal net or the metal wire is raised and the low-temperature sealing material is melted, and the glass is sealed; on the other hand, the metal strip, the metal mesh or the metal wire is used as a solid reinforcing phase in the low-temperature sealing material and plays a supporting role between the two glass plates.
In another aspect of the present invention, based on the above, the spacer support is one or more of a ceramic spacer support, a metal spacer support and a composite spacer support. In addition, the spacing support body can also be a heat-insulating spacing support body, wherein the ceramic spacing support body mainly comprises a glass spacing support body, a traditional ceramic spacing support body and the like, the metal spacing support body mainly comprises an aluminum spacing support body, an aluminum alloy spacing support body, a stainless steel spacing support body and the like, and the composite material spacing support body mainly comprises a plastic steel spacing support body, an aluminum plastic spacing support body, a composite adhesive tape, a glass fiber reinforced composite spacing support body and the like. So, because aerogel supporter thickness is thicker than traditional supporter, if use low temperature sealing material directly to two glass 1 seal, because low temperature sealing material extension is excessive, lead to sealing edge portion gap or hourglass phenomenon to appear, influence vacuum glass's leakproofness, therefore, preset between two glass and melt the seal again behind the interval supporter, can solve on the one hand because the excessive sealing problem that arouses of low temperature sealing material extension, on the other hand can also play main supporting role, reduce the stress of aerogel supporter and excessively concentrate, negative pressure glass's bending resistance has further been improved, compressive strength.
The other technical scheme of the invention is that on the basis, the heating mode of the sealing is one of laser heating, electron beam heating and microwave heating. Thus, the low-temperature sealing material can be directly and rapidly heated by adopting laser heating, electron beam heating, microwave heating and other modes in the sealing process, and the sealing is continuously carried out while melting; or the metal strip, the metal net or the metal wire arranged in the low-temperature sealing material can be directly and rapidly heated and melted by adopting the modes of laser heating, electron beam heating, microwave heating and the like, so that the continuous sealing of the glass is realized.
On the basis, the surface of the glass sealing part is pretreated and wetted before the manufacturing step of the glass cavity body, and a transparent adhesive is arranged between the contact surface of the aerogel support body and the glass, so that the interface bonding strength between the glass surface and the low-temperature sealing material is increased, and the connection and fixation between the aerogel support body and the inner surface of the glass are also increased, so that a better effect is achieved.
According to another technical scheme, the composite glass with the aerogel inside comprises a glass sealing body and a vacuum air extractor arranged on the glass sealing body, wherein the glass sealing body is composed of two pieces of glass, an interval supporting body arranged between the two pieces of glass and an aerogel supporting body arranged in a glass cavity, and a U-shaped sealing part formed between the two pieces of glass and the interval supporting body is connected through a low-temperature sealing material.
In addition, the invention also provides a technical scheme that on the basis of the above, the vacuum air exhaust device is positioned on one corner of the front surface of the glass or one corner of the end part of the spacing support body. Thus, the vacuum air-extracting device is usually arranged on the front surface of the glass, and can also be arranged on one corner of the end part of the spacing support body, so as to achieve the purpose of not influencing the mechanical property of the spacing support body and the appearance of the glass.
The other technical scheme of the invention is that on the basis, the aerogel support body and the glass are connected through a transparent adhesive.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 to 6 are sectional views of a composite glass with aerogel embedded therein according to an embodiment of the present invention.
Wherein:
1-glass; 2-an aerogel support; 21-adhesive; 3-a spacer support; 4-low temperature sealing material; 41-metal strip; 42-metal mesh; 43-wire; 5-vacuum air pumping device; 6-sealing glue.
Detailed Description
The present invention will now be described in detail with reference to the drawings, which are given by way of illustration and explanation only and should not be construed to limit the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
The embodiment of the invention provides a preparation method of composite glass with a built-in aerogel, which comprises the following steps:
(1) laying an aerogel support body 2 on the central surface of the glass 1, laying a spacing support body 3 on the peripheral edge of the glass 1, and then placing another piece of glass 1 on the aerogel support body 2 and the spacing support body 3 in parallel;
(2) heating and melting the low-temperature sealing material 4, and continuously filling the low-temperature sealing material in a U-shaped sealing position formed between the two pieces of glass 1 and the interval support body 3 to completely seal the two pieces of glass 1 and the interval support body 3 to obtain a glass sealing body containing the aerogel support body 2;
(3) the air is evacuated by a vacuum evacuation device 5 and then sealed with a plug.
Thus, through the above steps, an aerogel composite glass can be obtained, which has at least two pieces of glass 1 as a housing, a sealed cavity with at least one vacuum pumping device 5, and an aerogel support body 2 disposed in the cavity, as shown in fig. 1. The energy-saving effect of the aerogel composite glass with the built-in aerogel support body 2 can be comparable to that of vacuum glass, and the transparent aerogel arranged in the aerogel composite glass has excellent heat insulation performance and few gas molecule convection heat phenomena caused by vacuum in the cavity, so that the obtained built-in aerogel composite glass has very excellent heat insulation performance. And the point support replacement that current vacuum glass was supported with glass 1 to built-in aerogel supporter 2 is for the face to support, and the security is higher, in addition, because the aerogel has better anti compressive deformation characteristic, can support effectively because of the compressive stress effect that the vacuum produced in the cavity, avoids the stress concentration phenomenon simultaneously, is the super energy-conserving glass of a safe type. Therefore, the composite glass with the built-in aerogel produced by the preparation method not only has good heat insulation performance, but also has excellent safety performance, and also solves the problems that the aerogel support body is reinforced and edge-sealed by adopting a low-temperature sealing material when the thickness of the aerogel support body exceeds the thickness of the existing vacuum glass support body.
On the basis of the above embodiment, in another embodiment of the present invention, the step of laying the support further includes a pretreatment and a wetting treatment of the surface of the sealing position of the glass 1, specifically: cleaning the surface of the sealing part of the glass 1 by using an acidic or alkaline solution, and coating a layer of wetting agent on the surface of the sealing part of the glass 1; the wetting agent is one or more of sodium dodecyl sulfate, lauryl sulfate, dialkyl sulfosuccinate, castor oil sulfate, alkyl pyridinium chloride, alkylphenol polyoxyethylene, polyoxyethylene alkyl ether, polyoxyethylene glycol alkyl ester and acetylene glycol. Thus, typically the acidic solution is H2SO4And HNO3The alkaline solution is NaOH or Na2CO3The surface of the sealing part of the glass 1 is firstly cleaned by acid solution or alkaline solution to achieve the purpose of removing oil stains and impurities, so that the next step of wetting treatment is facilitated; and then coating a layer of wetting agent on the surface of the sealing part of the glass 1 after pretreatment to reduce the surface tension of the sealing part of the glass 1 so as to achieve the purpose of increasing the interface bonding strength between the surface of the glass 1 and the low-temperature sealing material 4 and further ensure the sealing property of the sealing part of the glass 1.
In another embodiment of the present invention, the aerogel support 2 is one or more of flat plate, granular, column, and irregular shapes. Wherein, the abnormal shape body is a cylinder and a flat-plate integrated molding structure. Therefore, when the aerogel support body 2 is in a granular shape, the supporting effect can be achieved through the dense filling of the weight-reducing cavity, when the aerogel support body 2 is in other shapes, the aerogel support body 2 is fully distributed or distributed in the glass cavity in an array mode, and the thickness and the height of the cavity are suitable for achieving the supporting effect, so that the transparent aerogel with super thermal insulation performance and large size is used as the support body in the inner cavity of the aerogel energy-saving glass, multiple modes such as surface support, block support, column support and diversified support are achieved, on one hand, a thermal bridge phenomenon caused by a traditional point support body with a high heat transfer coefficient is avoided, the thermal insulation performance of the aerogel composite glass is further improved, on the other hand, the condition of stress concentration is radically eliminated, and the safety performance of the built-in aerogel composite glass is remarkably improved.
In another embodiment of the present invention, based on the above embodiment, the aerogel support body 2 material further comprises an aerogel support body or an aerogel composite support body with a low-density surface layer and a high-density core. Thus, the thermal conductivity of the aerogel is usually not less than 0.010W/m.k, and the heat transfer coefficient is controlled to the level of the heat transfer coefficient k of the vacuum glass (k value is about 0.5W/m.k)2K), the thickness of the traditional aerogel needs at least 15mm, the aerogel is cooperated with a negative pressure technology, the negative pressure technology and the nano size of the aerogel are implemented to generate a synergistic effect, the convection heat transfer of gas in pores of the aerogel in the cavity is completely blocked, and the heat conductivity coefficient of the aerogel is reduced to be below 0.004W/m.k, so that the thickness of the aerogel is greatly reduced, and the optimized thickness is 1 mm-5 mm. When the aerogel support body is low-density surface layer and high-density core, the aerogel support body with higher internal strength and elastic surface layer can be obtained, the requirement of slight expansion or contraction of a glass cavity caused by the ambient temperature in the use process of the glass can be met, and the excessive stress concentration of the aerogel support body is avoided; when the aerogel support body is an aerogel composite support body, not only can the aerogel support body be usedThe aerogel support body has good heat insulation performance, and the compressive strength of the aerogel support body is enhanced.
In another embodiment of the present invention, based on the above embodiment, the aerogel composite support 2 of the aerogel support 2 material comprises one or both of an aerogel/glass composite support and an aerogel/resin composite support. So, adopt aerogel and glass or resin composite technology, by light, the transparent aerogel that itself has excellent thermal-insulated heat preservation performance, the performance of making an uproar falls in the sound insulation, the energy-absorbing characteristic is as the functional component, use glass or resin to make the binder phase, the composite support body of aerogel and glass or resin that produces, have the excellent characteristic of aerogel and the good mechanical properties of glass or resin concurrently, both had good thermal-insulated heat preservation performance on the one hand, on the other hand can obtain good security performance and sound insulation again and fall the performance of making an uproar, in addition still has good mechanical properties.
Based on the above embodiment, in another embodiment of the present invention, a method for preparing the aerogel/glass composite support in the aerogel composite support in the material of the aerogel support 2 comprises:
(1) mixing materials, namely uniformly mixing glass powder and aerogel;
(2) melting, namely heating the glass powder in the mixture obtained in the step (1) to be melted to obtain semi-solid mixed glass melt;
(3) and (3) molding, namely pouring the mixed glass melt obtained in the step (2) into a mold, and cooling and solidifying.
Thus, through the steps, the aerogel/glass composite support body with heat insulation and preservation performance, which is composed of aerogel and glass bonding phase, can be obtained. The step (2) in the preparation method can be paving, namely placing the mixture obtained in the step (1) in a mould; then, the step (3) is melting, namely heating the glass powder in the mixture to be melted to obtain semi-solid mixed glass melt, and cooling and solidifying; a clarification process is also included after the melting step and before the forming step; the volume ratio of the aerogel to the glass bonding phase is 0.1-9: 1; the aerogel has the characteristics of internal hydrophobicity and surface hydrophilicity; the shape of the aerogel is one of block, particle and powder.
On the basis of the above embodiment, in another embodiment of the present invention, the preparation method of the aerogel/resin composite support body 2 in the aerogel composite support body in the aerogel support body 2 material comprises:
(1) mixing materials, namely uniformly mixing the aerogel and the resin powder;
(2) paving, namely paving a layer of mixture obtained in the step (1) on a mould substrate;
(3) melting, namely rapidly heating the resin powder in the mixture obtained in the step (2) to be molten in a step scanning mode by using a laser;
(4) and (3) alternately spreading and melting, and alternately repeating the step (2) and the step (3) on the previous deposition layer for solidification.
Thus, through the steps of mixing, paving, heating by a laser and the like, the aerogel/resin composite support body with heat insulation and preservation performance, which is composed of aerogel and a resin binder phase, can be obtained. Wherein the alternating spreading and melting steps are performed before the resin in the melting step is cured; the alternating spreading and melting step is carried out after the resin in the melting step is solidified; the volume ratio of the aerogel to the resin powder is 0.1-9: 1; the aerogel has the characteristics of internal hydrophobicity and surface hydrophilicity; the shape of the aerogel is one of block, particle and powder; the resin is a thermosetting resin or a thermoplastic resin.
On the basis of the above embodiment, in another embodiment of the present invention, a sealing step is further included between the sealing step and the vacuum pumping step, and specifically, the sealing step includes: the glass seal is sealed around its peripheral edge with a sealant 6. Therefore, double sealing is formed, and the sealing degree of the glass sealing body is further ensured.
On the basis of the above embodiment, in another embodiment of the present invention, the sealant 6 is one of a silicone sealant and a polysulfide sealant. Thus, the silicone sealant and the polysulfide sealant have strong bonding force, high tensile strength, excellent weather resistance, vibration resistance and the like, and are particularly suitable for structural or non-structural adhesive assembly between glass or between glass and metal.
On the basis of the above embodiment, in another embodiment of the present invention, when the sealing step is performed in a vacuum environment, the subsequent vacuum step may not be performed, and in order to achieve a better effect, the vacuum step may be performed again.
On the basis of the above embodiment, in another embodiment of the present invention, the sealing step further includes a sealing step, specifically: sealing the peripheral edge of the glass sealing body by using a sealant 6, wherein the sealant is one of silicone sealant and polysulfide sealant; the sealing step and the sealing step are carried out in a vacuum environment, the subsequent vacuumizing step can be omitted, and the vacuumizing step can be carried out again in order to achieve a better effect.
On the basis of the above embodiment, in another embodiment of the present invention, a transparent adhesive 21 is disposed between the contact surfaces of the aerogel support 2 and the glass 1. Therefore, the transparent adhesive 21 can be used for fixedly connecting the aerogel support body 2 with the inner surface of the glass 1 so as to play a better supporting role.
On the basis of the above embodiment, in another embodiment of the present invention, the low-temperature sealing material 4 is low-temperature glass frit or a low-temperature metal edge sealing material. Therefore, the low-temperature sealing material 4 is adopted for sealing, so that the annealing phenomenon of toughened glass or semi-toughened glass caused by overhigh sealing temperature can be avoided, and the physical property of the toughened glass or the semi-toughened glass is reduced; the sealing welding of the glass 1 and the interval support body 3 is realized by carrying out the sealing by the low-temperature glass powder or the low-temperature metal edge sealing material, and the requirement of high vacuum degree is met, so that the service life of the built-in aerogel composite glass is effectively prolonged.
On the basis of the above embodiment, in another embodiment of the present invention, the low-temperature metal edge sealing material in the low-temperature sealing material 4 is one of indium, an indium alloy, tin, and a tin alloy. Thus, the melting point of the low-temperature metal such as indium, indium alloy, tin alloy, etc. does not generally exceed the annealing temperature of the glass 1.
On the basis of the above embodiment, in another embodiment of the present invention, one or more of the metal strips 41, the metal meshes 42, or the metal wires 43 are disposed inside the low-temperature sealing material 4. Therefore, by arranging the metal strip 41, the metal mesh 42 or the metal wire 43 in the sealing edge, on one hand, the melting point of the metal strip 41, the metal mesh 42 or the metal wire 43 is higher than that of the low-temperature sealing material, and by heating the glass to be sealed, the temperature of the metal strip 41, the metal mesh 42 or the metal wire 43 rises and the low-temperature sealing material 4 is melted, so that the glass is sealed; on the other hand, the metal strips 41, the metal mesh 42 or the metal wires 43 serve as a solid reinforcing phase in the low-temperature sealing material 4 and support between the two glass plates 1.
On the basis of the above embodiment, in another embodiment of the present invention, the spacer support 3 is one or more of a ceramic spacer support, a metal spacer support and a composite spacer support. In addition, the spacing support body can also be a heat-insulating spacing support body, wherein the ceramic spacing support body mainly comprises a glass spacing support body, a traditional ceramic spacing support body and the like, the metal spacing support body mainly comprises an aluminum spacing support body, an aluminum alloy spacing support body, a stainless steel spacing support body and the like, and the composite material spacing support body mainly comprises a plastic steel spacing support body, an aluminum plastic spacing support body, a composite adhesive tape, a glass fiber reinforced composite spacing support body and the like. So, because 2 thickness of aerogel supporter are thicker than traditional supporter, if use low temperature sealing material 4 directly to two glass 1 seal, because low temperature sealing material 4 extension is excessive, lead to sealing edge portion gap or hourglass phenomenon to appear, influence vacuum glass's leakproofness, therefore, preset interval supporter 3 back between two glass 1 and carry out the melt seal again, can solve the sealing problem that causes because low temperature sealing material 4 extension is excessive on the one hand, on the other hand can also play main supporting role, reduce aerogel supporter 2's stress and excessively concentrate, negative pressure glass's bending resistance has further been improved, compressive strength.
On the basis of the above embodiment, in another embodiment of the present invention, the heating manner of the sealing is one of laser heating, electron beam heating, and microwave heating. Thus, the low-temperature sealing material 4 can be directly and rapidly heated by adopting laser heating, electron beam heating, microwave heating and other modes in the sealing process, and the sealing is continuously carried out while melting; or the metal strip 41, the metal mesh 42 or the metal wire 43 arranged in the low-temperature sealing material 4 can be directly and rapidly heated and melted by adopting the modes of laser heating, electron beam heating, microwave heating and the like, so that the continuous sealing of the glass is realized.
In another embodiment of the present invention, a composite glass with an aerogel inside, includes the glass sealing body and a vacuum pumping device 5 disposed on the glass sealing body, where the glass sealing body is composed of two pieces of glass 1, an interval supporting body 3 between the two pieces of glass 1, and an aerogel supporting body 2 disposed in a glass cavity, and a U-shaped sealing portion formed between the two pieces of glass 1 and the interval supporting body 3 is connected by a low-temperature sealing material 4.
In another embodiment of the present invention, on the basis of the above embodiment, the vacuum pumping device 5 is located at one corner of the front surface of the glass or one corner of the end of the spacing support. Thus, the vacuum air-extracting device is usually arranged on the front surface of the glass, and can also be arranged on one corner of the end part of the spacing support body, so as to achieve the purpose of not influencing the mechanical property of the spacing support body and the appearance of the glass.
On the basis of the above embodiment, in another embodiment of the present invention, the aerogel support and the glass are connected by a transparent adhesive.
On the basis of the above embodiment, in another embodiment of the present invention, the aerogel composite glass is prepared by the following steps:
(1) performing pretreatment and wetting treatment on the surface of the sealing part at the edge of the glass 1, namely cleaning by using an acid solution, and then coating a layer of lubricant;
(2) laying a flat-plate aerogel support body 2 on the central surface of glass 1, laying a ceramic interval support body 3 on the peripheral edge of the glass 1, and then placing another piece of glass 1 on the flat-plate aerogel support body 2 and the interval support body 3 in parallel, wherein the flat-plate aerogel support body 2 is an aerogel support body 2 with a low-density surface layer and a high-density core part;
(3) heating and melting the low-temperature glass powder 4, and continuously filling the low-temperature glass powder into a U-shaped sealing part formed between the two pieces of glass 1 and the ceramic interval support body 3 to completely seal the two pieces of glass 1 and the ceramic interval support body 3 to obtain a glass sealing body containing the aerogel support body 2;
(4) sealing the peripheral edge of the glass sealing body by using a sealant;
(5) the glass sealing body is vacuumized, air is extracted through a vacuum air extractor 5 to generate certain negative pressure, and then the glass sealing body is sealed through a plug.
The structural cross-sectional view of the aerogel composite glass built-in obtained through the above steps is shown in fig. 1.
On the basis of the above embodiment, in another embodiment of the present invention, the aerogel composite glass is prepared by the following steps:
(1) the aerogel/glass composite support body is prepared by the following preparation method: (a) uniformly mixing the glass powder with the aerogel; (b) heating the glass powder in the mixture to be molten to obtain semi-solid mixed melt; (c) pouring the obtained mixed solution into a mold of a column body, and cooling and solidifying; (d) annealing to obtain the cylindrical aerogel/glass composite support body;
(2) performing pretreatment and wetting treatment on the surface of the sealing part at the edge of the glass 1, namely cleaning by using an alkaline solution, and then coating a layer of lubricant;
(3) firstly, respectively paving transparent adhesives 21 at the bottom and the top of a plurality of cylindrical aerogel/glass-based supporting bodies 2, arranging the transparent adhesives in an array and fastening the transparent adhesives on the surface of glass 1, then paving a composite material interval supporting body 3 on the peripheral edge of the glass 1, and then parallelly placing another piece of glass 1 on the plurality of cylindrical aerogel/glass-based supporting bodies 2 and the composite material interval supporting body 3;
(4) in a vacuum environment, the low-temperature metal indium 4 is heated and melted, and then is continuously filled in a U-shaped sealing part formed between the two pieces of glass 1 and the composite material interval support body 3, so that the two pieces of glass 1 and the composite material interval support body 3 are completely sealed, and the composite glass with the built-in aerogel is obtained.
The structural cross-sectional view of the aerogel composite glass built-in obtained through the above steps is shown in fig. 2.
On the basis of the above embodiment, in another embodiment of the present invention, the aerogel composite glass is prepared by the following steps:
(1) the aerogel/resin composite support body is prepared by the following preparation method: (a) uniformly mixing the aerogel and the resin powder; (b) laying a layer of mixture on the mould substrate; (c) rapidly heating the resin powder in the paved mixture to be molten in a step scanning mode by using a laser; (d) alternately repeating the steps (b) and (c) on the previous deposition layer according to the shape of the input special-shaped aerogel support body, and curing to obtain the special-shaped aerogel/resin composite support body;
(2) performing pretreatment and wetting treatment on the surface of the sealed part at the edge of the glass 1, namely cleaning by using an acid solution, and then coating a layer of lubricant lauryl sulfate;
(3) firstly, respectively paving transparent adhesives 21 at the bottom and the top of an aerogel/resin-based supporting body 2 of a special-shaped body, fastening the transparent adhesives on the central surface of glass 1, then paving a metal interval supporting body 3 on the peripheral edge of the glass 1, and parallelly placing another piece of glass 1 on the aerogel/glass-based supporting body 2 and the metal interval supporting body 3 of the special-shaped body;
(4) in a vacuum environment, heating the low-temperature metal indium alloy 4 with the metal strips embedded inside in advance to be molten through laser, and continuously filling the low-temperature metal indium alloy 4 in a U-shaped sealing position formed between two pieces of glass 1 and a metal spacing support body 3 to completely seal the two pieces of glass 1 and the metal spacing support body 3 to obtain a glass sealing body containing the aerogel support body 2;
(4) sealing the peripheral edge of the glass sealing body by using silicone sealant;
(5) the glass sealing body is vacuumized, air is extracted through a vacuum air extractor 5 to generate certain negative pressure, and then the glass sealing body is sealed through a plug.
The structural cross-sectional view of the aerogel composite glass built-in obtained through the above steps is shown in fig. 3.
On the basis of the above embodiment, in another embodiment of the present invention, the aerogel composite glass is prepared by the following steps:
(1) performing pretreatment and wetting treatment on the surface of the sealed part at the edge of the glass 1, namely cleaning by using an alkaline solution, and then coating a layer of lubricant alkyl pyridinium chloride;
(2) firstly, laying a granular aerogel support body 2 on the central surface of glass 1, then laying a composite material interval support body 3 on the peripheral edge of the glass 1, and placing another piece of glass 1 on the aerogel support body 2 and the composite material interval support body 3 in parallel;
(3) heating the low-temperature glass powder 4 with the metal mesh embedded inside in advance to be molten through electron beams, and continuously filling the low-temperature glass powder in a U-shaped sealing position formed between the two pieces of glass 1 and the composite material interval supporting body 3 to completely seal the two pieces of glass 1 and the composite material interval supporting body 3 to obtain a glass sealing body containing the aerogel supporting body 2;
(4) sealing the peripheral edge of the glass sealing body by polysulfide sealant;
(5) the glass sealing body is vacuumized, air is extracted through a vacuum air extractor 5 to generate certain negative pressure, and then the glass sealing body is sealed through a plug.
The structural cross-sectional view of the aerogel composite glass built-in obtained through the above steps is shown in fig. 4.
On the basis of the above embodiment, in another embodiment of the present invention, the aerogel composite glass is prepared by the following steps:
(1) performing pretreatment and wetting treatment on the surface of the sealed part at the edge of the glass 1, namely cleaning by using an acid solution, and then coating a layer of lubricant polyoxyethylene glycol alkyl ester;
(2) firstly, respectively paving transparent adhesives 21 at the bottom and the top of a plurality of cylindrical aerogel support bodies 2, arranging the transparent adhesives in an array and fastening the transparent adhesives on the central surface of glass 1, then paving a ceramic interval support body 3 on the peripheral edge of the glass 1, and parallelly placing another piece of glass 1 on the aerogel support body 2 and the ceramic interval support body 3, wherein the cylindrical aerogel support body 2 is the aerogel support body 2 with a low-density surface layer and a high-density core part;
(3) in a vacuum environment, the low-temperature metal tin alloy 4 with a plurality of metal wires arranged in parallel embedded inside is heated to be molten through microwaves, and then is continuously filled in a U-shaped sealing part formed between two pieces of glass 1 and a ceramic interval supporting body 3, so that the two pieces of glass 1 and the ceramic interval supporting body 3 are completely sealed, and a glass sealing body containing the aerogel supporting body 2 is obtained.
The structural cross-sectional view of the aerogel composite glass built-in obtained through the above steps is shown in fig. 5.
In another embodiment of the invention, the composite glass with the aerogel inside comprises the glass sealing body and a vacuum air extractor 5 arranged on the glass sealing body, wherein the glass sealing body consists of two pieces of glass 1, a spacing body 3 between the two pieces of glass 1 and an aerogel supporting body 2 arranged in a glass cavity, and a U-shaped sealing part formed between the two pieces of glass 1 and the spacing supporting body 3 is connected through a low-temperature sealing material 4; wherein the vacuum suction means 5 are located on one corner of the front side of the glass 1 or on one corner of the end of the spacing support 3, as shown in figures 1 and 6.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The preparation method of the composite glass with the aerogel inside is characterized by comprising the following steps of:
(1) preparing an aerogel-glass composite support: a, mixing materials, namely uniformly mixing glass powder and aerogel; b, melting, namely heating the glass powder in the mixture obtained in the step a to be melted to obtain semi-solid mixed glass melt; c, molding, namely pouring the mixed glass melt obtained in the step b into a mold, and cooling and solidifying;
(2) preparing an aerogel-resin composite support body: i, mixing materials, namely uniformly mixing aerogel and resin powder; ii, paving a layer of the mixture obtained in the step i on a mould substrate; iii, melting, namely rapidly heating the resin powder in the mixture obtained in the step ii to be molten by using a laser in a step scanning manner; iv alternately spreading and melting, and alternately repeating steps ii and iii on the previous deposition layer, and solidifying;
(3) the pretreatment and the wetting treatment of the surface of the glass sealing part specifically comprise the following steps: cleaning the surface of a glass sealing part by using an acidic or alkaline solution, and coating a layer of wetting agent on the surface of the glass sealing part, wherein the wetting agent is one or more of sodium dodecyl sulfate, lauryl sulfate, dialkyl sulfosuccinate, castor oil sulfate, alkyl pyridinium chloride, alkylphenol ethoxylates, polyoxyethylene alkyl ether, polyoxyethylene glycol alkyl ester and acetylene glycol;
(4) laying a support body, laying the aerogel support body on the glass, laying the interval support body on the peripheral edge of the glass, and then laying the other piece of glass on the aerogel support body and the interval support body;
(5) sealing, namely continuously filling a molten low-temperature sealing material into a U-shaped sealing part formed between two pieces of glass and the interval support body, and sealing and welding to obtain a glass sealing body containing the aerogel support body;
(6) sealing, namely sealing the peripheral edge of the glass sealing body by using a sealant, wherein the sealant is one of silicone sealant and polysulfide sealant;
(7) vacuumizing, and exhausting the glass sealing body through a vacuum air exhaust device;
a transparent adhesive is arranged between the contact surface of the aerogel support body and the glass;
the low-temperature sealing material is low-temperature glass powder or a low-temperature metal edge sealing material, and one or more of metal strips, metal nets or metal wires are arranged in the low-temperature sealing material;
the aerogel support body is in the shape of more than one of a flat plate, a particle, a cylinder and a special-shaped body.
2. The method for preparing the aerogel composite glass with an internal structure as claimed in claim 1, wherein the step (5) is performed in a vacuum environment, and then the step of vacuumizing (7) is not performed or the step of vacuumizing (7) is performed.
3. The method for preparing the composite glass with the built-in aerogel according to claim 1, wherein the low-temperature metal edge sealing material is one of indium, indium alloy, tin and tin alloy; the spacing support body is one of a ceramic spacing support body, a metal spacing support body and a composite material spacing support body; the heating mode of the sealing is one of laser heating, electron beam heating and microwave heating.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0552484A2 (en) * | 1992-01-20 | 1993-07-28 | BASF Aktiengesellschaft | Formed pieces or plates from silica-aerogel |
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| CN103382079B (en) * | 2013-06-27 | 2015-10-14 | 中国建筑材料科学研究总院 | The method for sealing of toughened vacuum glass, preparation method and toughened vacuum glass |
| CN104973807A (en) * | 2014-04-11 | 2015-10-14 | 青岛鑫泰青玻璃有限公司 | Tempered vacuum glass and production method thereof |
| CN106032310A (en) * | 2014-10-27 | 2016-10-19 | 金承黎 | Vacuum glass and manufacturing method thereof |
| CN104496159A (en) * | 2014-12-19 | 2015-04-08 | 洛阳兰迪玻璃机器股份有限公司 | Edge-sealing method of vacuum glass and vacuum glass product |
| CN104478202A (en) * | 2014-12-19 | 2015-04-01 | 洛阳兰迪玻璃机器股份有限公司 | Vacuum glass sealing method and vacuum glass product |
| CN105041142B (en) * | 2015-09-06 | 2018-01-02 | 长沙星纳气凝胶有限公司 | A kind of preparation method of aerogel thermal insulation glass |
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