CN114045112B - Temperature-changing light-adjusting fireproof adhesive and thermochromic glass - Google Patents
Temperature-changing light-adjusting fireproof adhesive and thermochromic glass Download PDFInfo
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- CN114045112B CN114045112B CN202111338453.1A CN202111338453A CN114045112B CN 114045112 B CN114045112 B CN 114045112B CN 202111338453 A CN202111338453 A CN 202111338453A CN 114045112 B CN114045112 B CN 114045112B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J1/00—Adhesives based on inorganic constituents
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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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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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
-
- 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
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
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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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
-
- 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
- B32B2419/00—Buildings or parts thereof
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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 relates to the technical field of manufacturing of safe and energy-saving glass products, in particular to a temperature-changing, light-adjusting and fireproof adhesive and thermochromic glass. The temperature-changing light-adjusting fireproof adhesive comprises the following raw materials in parts by weight: 90-120 parts of silica sol, 0.01-0.5 part of mildew inhibitor, 0.1-1.5 parts of char forming agent, 0.1-0.5 part of heat stabilizer, 0.1-0.2 part of defoamer, 0.1-3 parts of initiator, 17-30 parts of potassium hydroxide and 0-20 parts of solvent, wherein the mass concentration of the silica sol is 45-55%. When the fireproof glue is applied to glass, the fireproof glue has fireproof and heat-insulating properties and simultaneously has the effect of sunshade and dimming due to the decrease of transmittance at a certain temperature.
Description
Technical Field
The invention relates to the technical field of energy-saving safety glass product manufacturing, in particular to a temperature-changing light-adjusting fireproof adhesive and thermochromic glass.
Background
Energy conservation, emission reduction, low carbon, environmental protection, green and ecology are main melodies of the current building development. With the continuous development of building technology, glass is increasingly widely used in buildings. The relationships of glass, construction, safety, environmental protection, livability and comfort will also be more and more intimate. Glass is evolving towards two main functions: firstly, safety and secondly, energy conservation.
Besides the performance of common glass, the fireproof glass also has the performance of controlling fire spreading, smoke isolation, heat insulation and the like, thereby providing precious rescue time for effective rescue in the case of fire and reducing the loss of personnel, property and buildings to the greatest extent. The fire-proof glass can prevent the escape and rescue personnel from being damaged by heat radiation and reduce the destructive power of fire disaster to the minimum. Because of the recent frequent occurrence of certain well-known large-scale building fires at home and abroad, people pay more attention to and pay more attention to the research, development, production and use effects of the composite fireproof glass. Meanwhile, along with the improvement of living standard, the requirements of people on improving indoor thermal environment and improving comfort level of buildings are also higher, and the main means for realizing the purpose at present is to use an air conditioner, which inevitably increases building energy consumption and aggravates energy crisis. There is a need for a glass that has both fire protection and energy conservation.
Disclosure of Invention
In order to solve the prior art problems, the invention provides a temperature-changing light-adjusting fireproof adhesive and thermochromic glass for realizing the dual effects of fireproof and energy saving.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in one aspect of the invention, a temperature-changing light-adjusting fireproof adhesive is provided, which comprises the following raw materials in parts by weight:
90-120 parts of silica sol, 0.01-0.5 part of mildew inhibitor, 0.1-1.5 parts of char forming agent, 0.1-0.5 part of heat stabilizer, 0.1-0.2 part of defoamer, 0.1-3 parts of initiator, 17-30 parts of potassium hydroxide and 0-20 parts of solvent, wherein the mass concentration of the silica sol is 50-60%.
Further, the particle size of the nano silicon dioxide in the silica sol is 80-180 nm, and the particle size distribution index PDI of the silica sol is less than 0.01.
Further, the particle size of the nano silicon dioxide is 150-160 nm.
Further, the silica sol is 100-110 parts, and the mass concentration of the silica sol is 50-55%.
Further, the initiator is 2-3 parts.
Further, the potassium hydroxide is 17-25 parts.
Further, the mildew preventive is at least one selected from quaternary ammonium salt derivatives, pinus koraiensis and No. 75 mildew preventive;
the char former is selected from at least one of sucrose, fructose, glucose and maltose;
the heat-resistant stabilizer is at least one of borax and boric acid;
the defoaming agent is a polyether modified organic silicon defoaming agent;
the initiator is at least one selected from potassium carbonate, potassium bicarbonate, potassium fluosilicate and potassium nitrate;
the solvent is at least one selected from glycerol, ethylene glycol and isopropanol.
In another aspect of the present invention, there is provided a thermochromic glass comprising:
the fire-resistant glass comprises a fire-facing glass layer, a back-fire-facing glass layer and a fireproof layer positioned between the fire-facing glass layer and the back-fire-facing glass layer, wherein the fireproof layer is formed by the fireproof glue.
Further, the thickness of the fireproof layer is 0.5-2.0. 2.0 mm.
Further, the fire facing glass layer is a vacuum glass layer manufactured by vacuumizing the middle of two layers of glass.
Further, the fire-resistant glass layer comprises a toughened glass layer positioned on one side of the fire-resistant glass layer, wherein the fire-resistant glass layer is positioned between the toughened glass layer and the fireproof layer, and a hollow structure is formed between the toughened glass layer and the fire-resistant glass layer.
The invention provides a fireproof adhesive K 2 O·nSiO 2 The inorganic composite material is based on the components, especially the mixture ratio of silica sol, initiator and potassium hydroxide, so that the fireproof glue has the performance of continuously changing light transmittance in a certain temperature range when being prepared into glass, and can be used as a raw material of thermochromic glass. The invention provides a fireproof adhesiveNot only can the fireproof performance be realized, but also the color-changing performance of the color changing along with the temperature change can be realized, thereby realizing the dual effects of fireproof and energy saving. The thermochromic glass has fireproof and heat-insulating properties and simultaneously has the effect of sunshade and dimming, and the transmittance of the thermochromic glass is reduced at a certain temperature.
Drawings
Fig. 1 is a schematic structural view of thermochromic fire-resistant glass.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but is not limited thereto, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
The invention provides a fireproof adhesive which comprises the following raw materials in parts by weight: 90-120 parts of silica sol, 0.01-0.5 part of mildew inhibitor, 0.1-1.5 parts of char forming agent, 0.1-0.5 part of heat stabilizer, 0.1-0.2 part of defoamer, 0.1-3 parts of initiator, 17-30 parts of potassium hydroxide and 0-20 parts of solvent, wherein the mass concentration of the silica sol is 50-60%.
When the fireproof glue is applied to glass, the fireproof glue has fireproof and heat-insulating properties and simultaneously has the effect of sunshade and dimming due to the decrease of transmittance at a certain temperature. Accordingly, herein, the "flame retardant glue" may also be referred to as a "temperature-change light-adjusting flame retardant glue".
The "thermochromic glass" mentioned in the present invention means the following glass: the color changes with the change of the ambient temperature, and when the temperature is higher than the critical point, the color becomes dark, and when the temperature is lower than the critical point, the original transparent state is restored. Typically, such glasses that change color with cycling of ambient temperature are also referred to as thermochromic glasses.
The silica sol of the present invention may contain nanosilica having a particle size of 80 to 180, 180nm, preferably 150 to 160 nm. For example, the nanosilica may have a particle size of about 80nm, 90nm, 100nm, 110nm, 120nm, 130nm, 140nm, 150nm, 160nm, 170nm, or 180nm. The particle size range of the invention is selected, the specific surface area is large, the activity is high, and the reaction is easy to control.
The silica sol may have a particle size distribution index PDI of less than 0.01.
The proportion of the silica sol can be 90-100 parts, 100-110 parts or 110-120 parts. For example, the silica sol may be mixed in an amount of 90 parts, 95 parts, 100 parts, 105 parts, 110 parts, 115 parts, or 120 parts.
The mass concentration of the silica sol may be 50-55% or 55-60%. The mass concentration of the silica sol means the mass content of silica in the silica sol. For example, the mass concentration of the silica sol may be 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, or 60%.
The fireproof glue prepared by the mass concentration of the silica sol is transparent and can have a color-changing effect. If the concentration is too low, no discoloration effect occurs.
The proportion of the initiator is 0.1-3 parts, preferably 2-3 parts. For example, the initiator may be present in a ratio of 0.1 parts, 0.5 parts, 1.0 parts, 1.5 parts, 2.0 parts, 2.5 parts, or 3.0 parts.
The initiator content of the invention forms a good match with the concentration of the silica sol, and the lower the concentration of the silica sol required, the lower the cost. However, the concentration of the silica sol which is too low cannot generate a color-changing effect, and the initiator content of the invention simultaneously has the effects of reducing cost and changing color.
The proportion of potassium hydroxide can be 17-25 parts or 25-30 parts. For example, the proportion of potassium hydroxide may be 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 25 parts, 27 parts, or 30 parts.
The potassium hydroxide and the silica sol with the proportion can have the color-changing effect.
The mildew preventive can be at least one selected from quaternary ammonium salt derivatives, pinus koraiensis and No. 75 mildew preventive.
The char former may be selected from at least one of sucrose, fructose, glucose and maltose.
The heat stabilizer may be at least one selected from borax and boric acid.
The defoamer may be a polyether modified silicone defoamer.
The initiator can be at least one of potassium carbonate, potassium bicarbonate, potassium fluosilicate and potassium nitrate.
The potassium hydroxide may be technical grade potassium hydroxide having a purity of 90%.
The solvent may be at least one of glycerol, ethylene glycol, and isopropanol.
In the embodiment of the invention, a preparation method of the fireproof adhesive is also provided, and the preparation method comprises the following steps:
the preparation method comprises the steps of (by weight portion) dissolving 0.01-0.5 portion of mildew inhibitor, 0.1-1.5 portion of char forming agent, 0.1-0.5 portion of heat stabilizer, 0.1-0.2 portion of defoamer and 0-20 portion of solvent in 90-120 portions of silica sol with mass concentration of 45-55%, and mixing to form stock solution;
slowly adding the stock solution into a mixture of 17-30 parts of potassium hydroxide and 0.1-3 parts of initiator, stirring while adding, reacting, and vacuum degassing to obtain a precursor solution.
The obtained precursor solution, namely the fireproof glue disclosed by the embodiment of the invention, can be used for preparing fireproof glass, and the prepared fireproof glass can realize fireproof performance and color changing performance of which the color changes along with temperature change, so that the dual effects of fireproof and energy saving are realized.
In an embodiment of the present invention, there is also provided a thermochromic glass, as shown in fig. 1, including: the fire-resistant glass layer 11, the back-fire glass layer 12 and the fireproof layer 2 positioned between the fire-resistant glass layer 11 and the back-fire glass layer 12, wherein the fireproof layer 2 is formed by the temperature-changing light-adjusting fireproof glue according to any embodiment of the invention.
The fire-facing glass layer 11 can be float glass or toughened glass with the thickness of 3-5 mm; the back glass layer 12 may be tempered glass having a thickness of 5-10 a mm a.
In order to be more sensitive to the perception of temperature, the thickness of the fire-resistant layer 2 is set to 0.5-2.0 mm, preferably 1.0-2.0 mm. For example, the thickness of the fire barrier may be 0.5mm, 0.8mm, 1.0mm, 1.2 mm, 1.5mm, 1.8 mm, or 2.0 mm.
The thermochromic glass may further comprise a tempered glass layer 5 located at one side of the fire-facing glass layer 11, such that the fire-facing glass layer 11 is located between the tempered glass layer 5 and the fire-resistant layer 2, wherein a hollow structure is formed between the tempered glass layer 5 and the fire-facing glass layer 11.
The hollow structure may be filled with one or more of air, krypton, argon, nitrogen, or helium. The hollow structure can reduce the color-changing temperature of the fireproof glass. For example, in general, the fire-resistant layer changes color at a critical temperature of about 60 ℃, and after the hollow structure is included, the temperature of the cavity in the hollow structure can reach about 60 ℃ under the direct sunlight in summer due to the greenhouse effect, for example, when the ambient temperature is about 30 ℃, so that the fire-resistant layer starts to change color, and the application and the practicability of the fire-resistant glass for an outer window are improved.
The thickness of the hollow structure may be 6.0-18 a mm a, preferably 8.0-16 a mm a. For example, the thickness of the hollow structure may be 6mm, 7mm, 8mm, 9mm, 10mm, 12mm or 16mm.
In the embodiment of the invention, a preparation method of thermochromic glass is also provided, and the preparation method comprises the following steps:
providing a fire-facing glass layer 11 and a back-fire-facing glass layer 12, wherein the fire-facing glass layer 11 can be float glass or toughened glass with the thickness of 3-5 mm, and the back-fire-facing glass layer 12 can be toughened glass with the thickness of 5-10 mm;
bonding the fire-facing glass layer 11 and the back-facing glass layer 12 through a sealant 3 and a structural adhesive 4 to form a cavity, and reserving a grouting opening, wherein the sealant 3 can be a butyl adhesive tape, and the structural adhesive 4 can be a silicone adhesive;
after the fireproof glue of any embodiment of the invention is poured into a cavity formed between the fire facing glass layer 11 and the back fire facing glass layer 12, sealing is carried out, and a fireproof glass semi-finished product is obtained;
the semi-finished product of the fireproof glass is cured to form transparent fireproof glass, wherein the semi-finished product of the fireproof glass can be formed by heating for 2-12 hours at 60-80 ℃ in an oven, and the curing reaction is carried out, wherein the higher the temperature is, the shorter the time is, and the stepped heating and curing mode can also be adopted. Or can be formed by curing at normal temperature. The curing at normal temperature requires a relatively long time, and the curing in summer requires a week.
It should be noted that, the fireproof glass and the preparation method thereof provided by the embodiments of the present invention use the fireproof glue according to any one of the embodiments of the present invention as a raw material, so that the effect that the fireproof glue can achieve can also be achieved, and will not be described in detail herein.
In general, such a fire-resistant glass that can achieve both a fire-resistant effect and a color-changing property in which the color changes with a change in temperature may also be referred to as a thermochromic fire-resistant glass. Specifically, the thermochromic fireproof glass has the functions of controlling flame spreading, smoke isolation and heat insulation in a fire disaster, and also has the functions of increasing the ambient temperature, changing the glass from transparent to opaque, reducing the ambient temperature, and changing the glass from opaque to transparent to adjust the ultraviolet, visible and infrared light transmittance.
The above-described aspects of the present invention will be described in further detail with reference to the following embodiments. It should not be construed that the scope of the above subject matter of the present invention is limited to the following examples.
Example 1: temperature-changing light-adjusting fireproof glue and thermochromic fireproof glass containing same
1) Preparation of temperature-changing light-regulating fireproof adhesive
Dissolving 0.05g of kathon, 0.5g of fructose, 0.1g of borax, 0.1g of polyether modified organic silicon defoamer and 8g of glycerol in 90g of silica sol with mass concentration of 55%, and uniformly stirring and mixing at a high speed to obtain a stock solution; the particle size of the nano silicon dioxide in the silica sol is 150nm, and the particle size distribution index PDI of the silica sol is less than 0.01;
slowly adding the stock solution into a mixture of 0.4g of potassium bicarbonate and 20.74g of potassium hydroxide, stirring while adding to prevent overflow caused by too fast heat release, and vacuumizing for 10min after 20min of mixing reaction to obtain a precursor solution, namely the temperature-changing light-regulating flame retardant adhesive.
2) Preparation of thermochromic fireproof glass
Stacking the positions of the butyl rubber strips, which are 7mm away from the edges of the back fire surface glass layers, and reserving grouting openings; bonding and hot-pressing a fire-facing glass layer with the thickness of 4mm with a back-fire-facing glass layer with the thickness of 8mm through a butyl rubber strip to a required thickness, wherein the thickness is usually the thickness of a cavity; and filling silicone adhesive in the gap outside the butyl rubber strip. Filling the precursor solution into a cavity with the thickness of 0.5mm through the grouting opening, and sealing by adopting butyl rubber; transferring the filled thermochromic fireproof glass into an oven, and heating at 60 ℃ for 12 hours to carry out curing reaction, so that the thermochromic fireproof glass is transparent, thereby obtaining the thermochromic fireproof glass.
Example 2: temperature-changing light-adjusting fireproof glue and thermochromic fireproof glass containing same
1) Preparation of temperature-changing light-regulating fireproof adhesive
Dissolving 0.5g of No. 75 mildew inhibitor, 1.5g of glucose, 0.5g of boric acid, 0.2g of polyether modified organic silicon defoamer and 20g of glycol in 120g of silica sol with the mass concentration of 50%, and stirring and mixing at a high speed uniformly to obtain a stock solution; the particle size of the nano silicon dioxide in the silica sol is 160nm, and the particle size distribution index PDI of the silica sol is less than 0.01;
slowly adding the stock solution into a mixture of 3g of potassium carbonate and 17g of potassium hydroxide, stirring while adding to prevent overflow caused by too fast heat release, and vacuumizing for 12min after mixing reaction for 25min to obtain a precursor solution, wherein the precursor solution is the temperature-changing light-regulating flame retardant adhesive.
2) Preparation of thermochromic fireproof glass
Stacking the positions of the butyl rubber strips, which are 7mm away from the edges of the back fire surface glass layers, and reserving grouting openings; bonding a fire facing glass layer with the thickness of 3mm with a back fire facing glass layer with the thickness of 10mm through a butyl adhesive tape, and hot-pressing to the required thickness; and filling silicone adhesive in the gap outside the butyl rubber strip. Filling the precursor solution into a cavity with the thickness of 2.0mm through the grouting opening, and sealing by adopting butyl rubber; transferring the filled thermochromic fireproof glass into an oven, heating at 80 ℃ for 2 hours, and performing curing reaction to make the thermochromic fireproof glass transparent, thereby obtaining the thermochromic fireproof glass.
Example 3: temperature-changing light-adjusting fireproof glue and thermochromic fireproof glass containing same
1) Preparation of temperature-changing light-regulating fireproof adhesive
Dissolving 0.01g of quaternary ammonium salt derivative, 1g of maltose, 0.3g of boric acid, 0.15g of polyether modified organic silicon defoamer and 0.5g of isopropanol in 110g of silica sol with mass concentration of 60%, and uniformly stirring and mixing at a high speed to obtain a stock solution; the particle size of the nano silicon dioxide in the silica sol is 80nm, and the particle size distribution index PDI of the silica sol is less than 0.01;
slowly adding the stock solution into a mixture of 0.1g of potassium fluosilicate and 25g of potassium hydroxide, stirring while adding to prevent overflow caused by too fast heat release, and vacuumizing for 11min after mixing reaction for 23min to obtain a precursor solution, namely the temperature-changing light-regulating flame retardant adhesive.
2) Preparation of thermochromic fireproof glass
Stacking the positions of the butyl rubber strips, which are 7mm away from the edges of the back fire surface glass layers, and reserving grouting openings; bonding and hot-pressing a fire facing glass layer with the thickness of 5mm with a back fire facing glass layer with the thickness of 5mm through a butyl adhesive tape to the required thickness; and filling silicone adhesive in the gap outside the butyl rubber strip. Filling the precursor solution into a cavity with the thickness of 1.0mm through the grouting opening, and sealing by adopting butyl rubber; transferring the filled thermochromic fireproof glass into an oven, heating for 7 hours at 70 ℃, and performing curing reaction to make the thermochromic fireproof glass transparent, thereby obtaining the thermochromic fireproof glass.
Example 4: temperature-changing light-adjusting fireproof glue and thermochromic fireproof glass containing same
1) Preparation of temperature-changing light-regulating fireproof adhesive
Dissolving 0.01g of quaternary ammonium salt derivative, 0.25g of kathon, 0.3g of sucrose, 0.9g of fructose, 0.1g of borax, 0.1g of boric acid, 0.2g of polyether modified organosilicon defoamer, 5g of glycerol and 5g of isopropanol in 100g of silica sol with the mass concentration of 52%, and uniformly stirring and mixing at a high speed to obtain a stock solution; the particle size of the nano silicon dioxide in the silica sol is 100nm, and the particle size distribution index PDI of the silica sol is less than 0.01;
slowly adding the stock solution into a mixture of 2g of potassium nitrate, 0.5g of potassium bicarbonate and 30g of potassium hydroxide, stirring while adding to prevent overflow caused by too fast heat release, and vacuumizing for 10min after mixing reaction for 18min to obtain a precursor solution, wherein the precursor solution is the temperature-changing light-regulating flame retardant glue.
2) Preparation of thermochromic fireproof glass
Stacking the positions of the butyl rubber strips, which are 7mm away from the edges of the back fire surface glass layers, and reserving grouting openings; bonding and hot-pressing a fire facing glass layer with the thickness of 5mm with a back fire facing glass layer with the thickness of 7mm through a butyl adhesive tape to the required thickness; and filling silicone adhesive in the gap outside the butyl rubber strip. Filling the precursor solution into a cavity with the thickness of 1.5mm through the grouting opening, and sealing by adopting butyl rubber; transferring the filled thermochromic fireproof glass into an oven, heating at 65 ℃ for 10 hours, and performing curing reaction to make the thermochromic fireproof glass transparent, thereby obtaining the thermochromic fireproof glass.
Example 5:
1) The preparation method of the temperature-changing light-adjusting fireproof adhesive is as in example 1;
2) Preparation of thermochromic fireproof glass
Stacking butyl rubber strips along the position 7mm away from the edge of the glass layer of the backfire surface, and reserving a grouting opening; bonding a fire facing glass layer with the thickness of 4mm with a back fire facing glass layer with the thickness of 6mm through a butyl adhesive tape, and then hot-pressing to the required thickness; and filling silicone adhesive in the gap outside the butyl rubber strip. Filling the precursor solution into a cavity with the thickness of 0.8mm through the grouting opening, and sealing by adopting butyl rubber; transferring the filled thermochromic fireproof glass semi-finished product into an oven, heating at 75 ℃ for 8 hours, and performing curing reaction to make the semi-finished product transparent, thereby obtaining the thermochromic fireproof glass. The thermochromic fireproof glass and 4mm toughened glass are synthesized into a hollow layer, the thickness of the hollow layer is 12mm, and nitrogen can be filled into the hollow layer to form the thermochromic fireproof glass with a hollow structure. The hollow layer can adopt aluminum spacing bars or warm edge spacing bars. The thickness of the toughened glass for synthesizing the hollow layer is usually 4mm or 5mm.
Example 6:
1) The preparation method of the temperature-changing light-adjusting fireproof adhesive is as in example 1;
2) Preparation of thermochromic fireproof glass
The middle of the two layers of glass was vacuumized to prepare a vacuum glass layer, and then the vacuum glass layer was used as a fire-facing glass layer to prepare thermochromic fireproof glass according to the method of example 1. The fire-facing glass layer can also be directly selected as the finished vacuum glass.
Performance of thermochromic fire-resistant glasses of examples 1-6:
the thermochromic fire-resistant glasses of examples 1-6 were tested for their color-changing and fire-resistant properties by conventional testing methods well known to those of ordinary skill in the art and will not be described in detail herein.
The color change and fire resistance properties of the thermochromic fire-resistant glasses of examples 1-6 are shown in the following table:
as is clear from the above table, the thermochromic fireproof glasses of examples 1 to 6 are transparent at normal temperature, undergo discoloration at a critical temperature of 58 to 60 ℃, become milky when the temperature is higher than that, and decrease the light transmittance of the thermochromic fireproof glass to 0 (i.e., light-proof) in less than 12 to 15 minutes, thereby having a sun-shading effect, and recover the transparent state when the temperature is lower than that. After the hollow structure is added, the color-changing environment temperature can be reduced, for example, in the environment temperature of 35 ℃, the temperature of the hollow cavity can reach more than 60 ℃, and the color-changing phenomenon is generated. The glass layer of the fire facing surface can be hollow glass or vacuum glass, if the glass layer is hollow glass, the environmental temperature during color change can be reduced, and the vacuum glass can not reduce the environmental temperature during color change, but the vacuum glass has better energy-saving effect than the hollow glass. Can be selected and used according to the needs.
The fire resistance of the fire-resistant glass was gradually increased with the increase in the thickness of the fire-resistant layer, but in the present invention, the thickness of the fire-resistant layer was set to 0.5 to mm mm because it was more sensitive to the temperature sensing. For a fire-resistant layer of this thickness, its fire-resistant properties are generally characterized by fire-resistant integrity (FireIntellity), i.e., the ability to prevent the penetration of flames and hot gases or the appearance of flames on the backfire side for a certain period of time when one side of the fire-resistant layer is subjected to fire under standard fire-resistant test conditions. As can be seen from the above table, the fire-resistant integrity of the fire-resistant glasses of examples 1-6 can be up to 120 minutes.
The above embodiment is only one of the preferred embodiments of the present invention, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present invention should be included in the scope of the present invention.
Claims (10)
1. The temperature-changing light-adjusting fireproof adhesive is characterized by comprising the following raw materials in parts by weight:
90-120 parts of silica sol, 0.01-0.5 part of mildew inhibitor, 0.1-1.5 parts of char forming agent, 0.1-0.5 part of heat stabilizer, 0.1-0.2 part of defoamer, 0.1-3 parts of initiator, 17-30 parts of potassium hydroxide and 0-20 parts of solvent, wherein the mass concentration of the silica sol is 50-60%;
the initiator is at least one selected from potassium carbonate, potassium bicarbonate, potassium fluosilicate and potassium nitrate.
2. The temperature-changing light-regulating fireproof glue according to claim 1, wherein the particle size of the nano silicon dioxide in the silica sol is 80-180 nm, and the particle size distribution index PDI of the silica sol is less than 0.01.
3. The temperature-changing light-adjusting fireproof glue according to claim 2, wherein the particle size of the nano silicon dioxide is 150-160 nm.
4. The temperature-changing light-adjusting fireproof adhesive according to claim 3, wherein the silica sol is 100-110 parts, and the mass concentration of the silica sol is 50-55%.
5. The temperature-changing light-regulating fireproof glue according to claim 4, wherein the initiator is 2-3 parts; and/or, 17-25 parts of potassium hydroxide.
6. The temperature-changing light-adjusting fireproof glue according to any one of claims 1 to 5, wherein,
the mildew preventive is at least one selected from quaternary ammonium salt derivatives, pinus koraiensis and No. 75 mildew preventive;
the char former is selected from at least one of sucrose, fructose, glucose and maltose;
the heat-resistant stabilizer is at least one of borax and boric acid;
the defoaming agent is a polyether modified organic silicon defoaming agent;
the solvent is at least one selected from glycerol, ethylene glycol and isopropanol.
7. A thermochromic glass comprising:
a fire-facing glass layer, a back-facing glass layer, and a fire-blocking layer between the fire-facing glass layer and the back-facing glass layer, wherein the fire-blocking layer is formed from the fire-blocking glue of any one of claims 1-6.
8. The thermochromic glass of claim 7, wherein the fire resistant layer has a thickness of 0.5-2.0 mm.
9. The thermochromic glass of claim 7 or 8, wherein the fire-facing glass layer is a vacuum glass layer made by vacuumizing the middle of two layers of glass.
10. The thermochromic glass of claim 7 or 8, further comprising a tempered glass layer positioned on a side of the fire-facing glass layer, the fire-facing glass layer positioned between the tempered glass layer and the fire-resistant layer, wherein a hollow structure is formed between the tempered glass layer and the fire-facing glass layer.
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| CN105295741A (en) * | 2015-11-18 | 2016-02-03 | 中国建筑材料科学研究总院 | Fire-proof glue of fire-proof glass, preparation method thereof and composite fire-proof glass |
| CN107216638A (en) * | 2017-07-12 | 2017-09-29 | 苏州珀力玛高分子材料有限公司 | A kind of temperature becomes light modulation fire proofing material, temperature control sunshade flame resistant glass and preparation method thereof |
| CN111334195A (en) * | 2020-05-18 | 2020-06-26 | 广东南亮艺术玻璃科技股份有限公司 | Fireproof liquid, preparation method thereof and fireproof glass |
| CN112662317A (en) * | 2020-12-25 | 2021-04-16 | 中国建筑材料科学研究总院有限公司 | Transparent fireproof glue, preparation method thereof and composite fireproof glass comprising transparent fireproof glue |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105295741A (en) * | 2015-11-18 | 2016-02-03 | 中国建筑材料科学研究总院 | Fire-proof glue of fire-proof glass, preparation method thereof and composite fire-proof glass |
| CN107216638A (en) * | 2017-07-12 | 2017-09-29 | 苏州珀力玛高分子材料有限公司 | A kind of temperature becomes light modulation fire proofing material, temperature control sunshade flame resistant glass and preparation method thereof |
| CN111334195A (en) * | 2020-05-18 | 2020-06-26 | 广东南亮艺术玻璃科技股份有限公司 | Fireproof liquid, preparation method thereof and fireproof glass |
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