Preparation method of laminated glass with good comprehensive performance

Abstract

The present application relates to the technical field of variable color glass, and particularly relates to a preparation method of laminated glass with good comprehensive performance, comprising the following steps: S1: respectively grinding 3 parts by weight of silver bromide, 7 parts by weight of silver chloride, 9 parts by weight of inorganic photochromic powder and 2 parts by weight of aluminum oxide into 8-micron particles through a superfine dry grinding machine; S2: adding the ground silver bromide, silver chloride, inorganic photochromic powder and aluminum oxide into a mixture of 150 parts by weight of QIS-5705 elastic sealant and chloroprene glue, and stirring to form a transparent water paste mixture A; S3: wet grinding the mixture A, and grinding the mixture A into 0.1-micron paste; the preparation method is simple, integrates the advantages of light modulation, ultraviolet protection, heat insulation and energy saving, high weather resistance, decoration and the like, is an important glass material for assisting the high-end green development of the building, automobile and the like industries, is in line with the new mode under the background of "double carbon", and has good market prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of variable color glass, in particular to a preparation method of laminated glass with good comprehensive performance. BACKGROUND

[0002] Under normal conditions, glass is transparent, and photochromic glass can produce light absorption in the visible region under the irradiation of ultraviolet or visible light, which reduces the transmittance of the glass or causes color change, and can automatically restore to the original transparent state after the light stops. Generally, photochromic glass is produced by introducing photosensitizers into ordinary glass components. Generally, the photosensitizer is uniformly dispersed in the glass in the form of microcrystals, which decomposes under sunlight to reduce the transmittance of the glass. When the glass is in the dark, the photosensitizer recombines to restore the transparency. The coloring and decoloring of the glass are reversible and permanent.

[0003] The decorative feature of photochromic glass is that the color and transmittance of the glass automatically change with the intensity of sunlight. When the intensity of sunlight is high, the color of the glass is deep and the transmittance is low; on the contrary, when the intensity of sunlight is low, the color of the glass is light and the transmittance is high. Using photochromic glass to decorate buildings can not only make the indoor light soft and the color changeable, but also make the building color varied and unpredictable, which is consistent with the sunlight environment of the building. It is generally used for building doors and windows, curtain walls, etc.

[0004] For example, the patent with application number CN202011381905.X discloses a photochromic glass and a preparation method thereof. The photochromic glass has good weather resistance and color change response speed, but the photochromic glass still has the following disadvantages: 1) The preparation of the photochromic glass uses a large number of organic compounds, and the preparation operation is relatively cumbersome; 2) The performance of the photochromic glass is not comprehensively improved, such as the light transmittance adjustment performance, ultraviolet isolation performance, heat insulation and energy saving performance, and weather resistance and stability performance, so there is an urgent need for a preparation method that is simple to prepare and can significantly improve the performance of the photochromic glass. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present application aims to provide a preparation method of laminated glass with good comprehensive performance, which solves the problems existing in the prior art. The method for preparing photochromic glass in the present application is not only simple, but also greatly improves the light transmittance adjustment performance, ultraviolet isolation performance, heat insulation and energy saving performance, and weather resistance and stability performance of the photochromic glass prepared by the method.

[0007] (II) Technical solutions

[0008] In order to achieve the above object, the present application provides the following technical solutions: S1: 3 parts by weight of silver bromide, 7 parts by weight of silver chloride, 9 parts by weight of inorganic photochromic powder and 2 parts by weight of aluminum oxide are ground into 8 micron particles by a superfine dry grinding machine; S2: the ground silver bromide, silver chloride, inorganic photochromic powder and aluminum oxide are added into a mixture of 150 parts by weight of QIS-5705 elastic sealant and chlorobutyl glue, and heated and stirred into a transparent water paste mixture A; S3: the mixture A is wet ground, and the mixture A is ground into a paste with a particle size of 0.1 micron; S4: the wet ground paste in S3 is automatically filtered, and particles with a particle size of less than or equal to 0.1 micron are filtered out, so that a spraying liquid B composed of particles with a particle size of less than or equal to 0.1 micron and a paste C composed of particles with a particle size of greater than 0.1 micron are obtained; S5: the paste C is re-wet ground in the wet grinding step of S3 until the qualified spraying liquid B is obtained; S6: the qualified spraying liquid B is transported to a spraying liquid storage place by a liquid delivery pump; S7: the preparation of laminated glass is carried out, and the preparation process is as follows: 1) two pieces of glass to be laminated are cleaned with acetone and dried; 2) a PVB glue strip soaked in glue solution is embedded in the four corners of the upper and lower glass to form a cavity, the height of the cavity is 0.05-0.08mm, and the cavity is clamped with a clamp, and a glue injection port is reserved for glue injection; 3) the spraying liquid B is degassed by a vacuum pump; 4) the glass is heated, and the degassed spraying liquid B is slowly injected into the cavity through the reserved glue injection port, and the measured spraying liquid B is injected and then left for 6-7 minutes; 5) after standing, the glass is gently knocked and appropriate pressure is applied to try to expel air, and then the reserved glue injection port is sealed, and the glass is clamped and fixed immediately after sealing; 6) after careful inspection without air bubbles, the laminated glass with injected glue is placed horizontally under sunlight or under a purple light for irradiation, and after solidification, the laminated glass is accepted, and the finished product is stored in the warehouse after acceptance.

[0009] Preferably, the mass ratio of QIS-5705 elastic sealant and chlorobutyl glue in step S2 is 4:11.

[0010] Preferably, the automatic filter in step S4 can adopt a multi-bag filter.

[0011] Preferably, the inorganic photochromic powder is composed of molybdenum trioxide, vanadium pentoxide and tungsten trioxide, and the mass ratio of molybdenum trioxide, vanadium pentoxide and tungsten trioxide is 5:3:1.

[0012] Preferably, the stirring in step S2 needs to be carried out in a dust-free and constant temperature and humidity environment, and the temperature is kept at 40-50℃ and the humidity is kept at 50-60%.

[0013] Preferably, the temperature of wet grinding in step S3 is 28-32℃.

[0014] Preferably, the temperature for storing the spraying liquid B is 30-40 DEG C.

[0015] Preferably, the glass in step S7 is heated to 55-60 DEG C.

[0016] (III) Beneficial effects

[0017] 1. The inorganic photochromic powder component is determined as consisting of molybdenum trioxide, vanadium pentoxide and tungsten trioxide, and the ratio of the three is determined as 5:3:1, which can make the generated effect and performance of the photochromic powder optimal, so that the light adjustment, ultraviolet protection, heat insulation and energy saving, high weather resistance of the finally prepared glass are greatly improved.

[0018] 2. The dry ground silver bromide, silver chloride, inorganic photochromic powder and alumina, QIS-5705 elastic sealant and chlorobutyl glue are fully mixed by wet grinding, and the mixture is ground into a nano-sized water paste, so that the final spraying liquid B is formed into a paste by the mixing of dry grinding and wet grinding, which can produce atomization effect when spraying on the glass. Because the glass is sprayed after being heated, the water in the coating on the glass evaporates immediately, and the coating is immediately dry and firm. After a large amount of water evaporates, the thickness of the coating can reach 0.05-0.08mm, basically maintaining the transparency of the original glass.

[0019] 3. The QIS-5705 elastic sealant is used in the application, which greatly enhances the firmness of the bonding between the two glasses. The total content of QIS-5705 elastic sealant and chlorobutyl glue in the mixture A can reach more than 85%, and the chlorobutyl glue is mainly used for dilution, mainly to increase the moisture in the glue, so that the color-changing substance becomes a paste, ensuring the spraying requirements and making the shape of the spraying misty.

[0020] 4. The application has strong light transmission adjustment performance, and the light transmission rate can be greatly and rapidly adjusted in different light environments (dark / light). It provides a bright view in dark light and prevents dazzling glare in bright light, and can effectively reduce the use of sunshade parts.

[0021] 5. The application can block more than 99.9% of ultraviolet radiation, greatly reducing the damage of outdoor light to the human eye and skin, and effectively reducing the aging speed of automobile and building interior parts.

[0022] 6. The application has effective solar radiation blocking ability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The transmission spectrum diagram of the initial state to the bright state of the application for 15 minutes;

[0024] Figure 2 Transmission-time curve for the color-changing, re-illumination process of the present invention;

[0025] Figure 3 Lighting simulation effect diagram for the present invention;

[0026] Figure 4 UV-visible spectrum diagram for different glasses of the present invention;

[0027] Figure 5 Transmission spectrum diagram for the initial state to 10 minutes of irradiation of the present invention;

[0028] Figure 6 Quality detection report for the present invention;

[0029] Figure 7 Radiation shielding performance of the xenon lamp of the present invention under different irradiation intensities;

[0030] Figure 8 Radiation transmittance diagram of the present invention under the same thickness of the product, ordinary glass, and LowE under the xenon lamp;

[0031] Figure 9 Real-time data diagram of the solar shading performance of the present invention in an outdoor actual scene within 1 minute;

[0032] Figure 10 Weather resistance detection report of the present invention certified by the China Testing Center (CTC). DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings. Figures 1-10 The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiments described are merely some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0034] Embodiment 1

[0035] S1: 30 g of silver bromide, 70 g of silver chloride, 90 g of inorganic photochromic powder (50 g of molybdenum trioxide, 30 g of vanadium pentoxide, and 10 g of tungsten trioxide), and 20 g of aluminum oxide are ground into particles with a particle size of 8 microns using a super-fine dry grinding machine; S2: the ground silver bromide, silver chloride, inorganic photochromic powder, and aluminum oxide are added to a mixture of 150 g of QIS-5705 elastic sealant and chlorobutyl glue (40 g of QIS-5705 elastic sealant and 110 g of chlorobutyl glue), and stirred into a transparent water paste mixture A in an environment with a temperature of 40-50°C and a humidity of 50-60% and without dust; S3: the mixture A is wet ground in an environment with a temperature of 28-32°C, and the mixture A is ground into a paste with a particle size of 0.1 microns;

[0036] S4: the wet ground paste in S3 is automatically filtered, and particles with a particle size of less than or equal to 0.1 microns are filtered out, so that a spraying liquid B composed of particles with a particle size of less than or equal to 0.1 microns and a paste C composed of particles with a particle size of greater than 0.1 microns are obtained; S5: the paste C is re-wet ground in the wet grinding step in S3 until the qualified spraying liquid B is obtained; S6: the qualified spraying liquid B is transported to a spraying liquid storage place using a liquid delivery pump, and the temperature of the spraying liquid B in storage is 30-40°C; S7: the preparation of laminated glass is performed, and the preparation process is as follows: 1) two pieces of glass to be laminated are cleaned with acetone and dried; 2) a PVB glue film strip soaked in glue solution is inserted into the four corners of the upper and lower glass to form a cavity, the height of the cavity is 0.05 mm, and a clamp is used for clamping, and a glue injection port is reserved for glue injection; 3) the spraying liquid B is degassed using a vacuum pump; 4) the glass is heated to 55-60°C, and the degassed spraying liquid B is slowly injected into the cavity through the reserved glue injection port, and the measured spraying liquid B is left to stand for 6-7 minutes after injection; 5) after standing, the glass is gently tapped and appropriate pressure is applied to try to expel air, and then the reserved glue injection port is quickly sealed, and the glass is clamped and fixed immediately after sealing (here, the gentle tapping of the glass only needs to apply a force that can expel air without breaking the glass); 6) after careful inspection for air bubbles, the laminated glass with injected glue is placed horizontally under sunlight or a violet light for irradiation, and after solidification, the laminated glass is accepted for storage after acceptance.

[0037] Example 2

[0038] S1: 60 g of silver bromide, 140 g of silver chloride, 180 g of inorganic photochromic powder (100 g of molybdenum trioxide, 60 g of vanadium pentoxide, and 20 g of tungsten trioxide), and 40 g of aluminum oxide are ground into particles with a particle size of 8 microns by a super-fine dry grinding machine; S2: the ground silver bromide, silver chloride, inorganic photochromic powder, and aluminum oxide are added to a mixture of 300 g of QIS-5705 elastic sealant and chlorobutyl glue (80 g of QIS-5705 elastic sealant and 220 g of chlorobutyl glue), and stirred into a transparent water paste mixture A in an environment with a temperature of 40-50°C and a humidity of 50-60% and without dust; S3: the mixture A is wet ground in an environment with a temperature of 28-32°C, and the mixture A is ground into a paste with a particle size of 0.1 micron;

[0039] S4: the wet ground paste in S3 is automatically filtered, and particles with a particle size of less than or equal to 0.1 micron are filtered out, so that a spraying liquid B composed of particles with a particle size of less than or equal to 0.1 micron and a paste C composed of particles with a particle size of greater than 0.1 micron are obtained; S5: the paste C is re-wet ground in the wet grinding step in S3 until the qualified spraying liquid B is obtained; S6: the qualified spraying liquid B is transported to a spraying liquid storage place by a liquid delivery pump, and the temperature for storing the spraying liquid B is 30-40°C; S7: the preparation of the laminated glass is performed, and the preparation process is as follows: 1) two pieces of glass to be laminated are cleaned with acetone and dried; 2) a PVB glue film strip soaked in glue solution is embedded in the four corners of the upper and lower glass to form a cavity, the height of the cavity is 0.06 mm, and the cavity is clamped with a clamp, and a glue spraying port is reserved for glue spraying; 3) the spraying liquid B is degassed by a vacuum pump; 4) the glass is heated to 55-60°C, and the degassed spraying liquid B is slowly sprayed into the cavity through the reserved glue spraying port, and the measured spraying liquid B is sprayed and then left to stand for 6-7 minutes; 5) after standing, the glass is gently tapped and appropriate pressure is applied to try to expel air, and then the reserved glue spraying port is quickly sealed, and the glass is clamped and fixed immediately after sealing; (here, the glass is gently tapped only by applying a force that can expel air without breaking the glass) 6) after careful inspection for no bubbles, the laminated glass with the injected glue is placed horizontally under sunlight or a violet light for irradiation, and after solidification, the laminated glass is accepted for storage after acceptance.

[0040] Example 3

[0041] S1: 120 g of silver bromide, 280 g of silver chloride, 360 g of inorganic photochromic powder (including 200 g of molybdenum trioxide, 120 g of vanadium pentoxide, and 40 g of tungsten trioxide), and 80 g of aluminum oxide are ground into particles with a particle size of 8 microns by a super-fine dry grinding machine; S2: the ground silver bromide, silver chloride, inorganic photochromic powder, and aluminum oxide are added to a mixture of 600 g of QIS-5705 elastic sealant and chlorobutyl glue (160 g of QIS-5705 elastic sealant and 440 g of chlorobutyl glue), and stirred into a transparent water paste mixture A in an environment with a temperature of 40-50°C and a humidity of 50-60% and without dust; S3: the mixture A is wet ground in an environment with a temperature of 28-32°C, and the mixture A is ground into a paste with a particle size of 0.1 micron; S4: the wet ground paste in S3 is automatically filtered, and particles with a particle size of less than or equal to 0.1 micron are filtered out, so that a spraying liquid B composed of particles with a particle size of less than or equal to 0.1 micron and a paste C composed of particles with a particle size of greater than 0.1 micron are obtained; S5: the paste C is re-wet ground in the wet grinding step in S3 until the qualified spraying liquid B is obtained; S6: the qualified spraying liquid B is transported to a spraying liquid storage place by a liquid delivery pump, and the temperature for storing the spraying liquid B is 30-40°C; S7: the preparation of the laminated glass is performed, and the preparation process is as follows: 1) two pieces of glass to be laminated are cleaned with acetone and dried; 2) a PVB glue film strip soaked in glue solution is embedded around the four sides of the upper and lower glass to form a cavity, the height of the cavity is 0.07 mm, and the cavity is clamped with a clamp, and a glue spraying port is reserved for glue spraying; 3) the spraying liquid B is degassed by a vacuum pump; 4) the glass is heated to 55-60°C, and the degassed spraying liquid B is slowly sprayed into the cavity through the reserved glue spraying port, and the measured spraying liquid B is sprayed and then left to stand for 6-7 minutes; 5) after standing, the glass is gently tapped and appropriate pressure is applied to try to expel air, and then the reserved glue spraying port is quickly sealed, and the glass is clamped and fixed immediately after sealing; (here, the glass is gently tapped only by applying a force that can expel air without breaking the glass) 6) after careful inspection for no air bubbles, the laminated glass with the injected glue is placed horizontally under sunlight or a purple light lamp for irradiation, and after solidification, the laminated glass is accepted, and the finished product is stored in the warehouse after acceptance.

[0042] Example 4

[0043] S1: 220 g of silver bromide, 560 g of silver chloride, 720 g of inorganic photochromic powder (400 g of molybdenum trioxide, 240 g of vanadium pentoxide, and 80 g of tungsten trioxide), and 160 g of aluminum oxide are ground into particles with a particle size of 8 microns by a super-fine dry grinding machine; S2: the ground silver bromide, silver chloride, inorganic photochromic powder, and aluminum oxide are added to a mixture of 1200 g of QIS-5705 elastic sealant and neoprene glue (320 g of QIS-5705 elastic sealant and 880 g of neoprene glue), and stirred into a transparent water paste mixture A in an environment with a temperature of 40-50°C and a humidity of 50-60% and without dust; S3: the mixture A is wet ground in an environment with a temperature of 28-32°C, and the mixture A is ground into a paste with a particle size of 0.1 micron; S4: the wet ground paste in S3 is automatically filtered, and particles with a particle size of less than or equal to 0.1 micron are filtered out, thus obtaining a spraying liquid B composed of particles with a particle size of less than or equal to 0.1 micron and a paste C composed of particles with a particle size of greater than 0.1 micron; S5: the paste C is re-wet ground in the wet grinding step in S3 until the qualified spraying liquid B is obtained; S6: the qualified spraying liquid B is transported to a spraying liquid storage place by a liquid delivery pump, and the temperature of the spraying liquid B in the storage place is 30-40°C; S7: the preparation of the laminated glass is performed, and the preparation process is as follows: 1) two pieces of glass to be laminated are cleaned with acetone and dried; 2) a PVB glue film strip soaked in the glue solution is embedded around the four sides of the upper and lower glass to form a cavity, the height of the cavity is 0.08 mm, and the cavity is clamped with a clamp, and a glue spraying port is reserved for glue spraying; 3) the spraying liquid B is degassed by a vacuum pump; 4) the glass is heated to 55-60°C, and the degassed spraying liquid B is slowly sprayed into the cavity through the reserved glue spraying port, and the measured spraying liquid B is sprayed into the cavity, and then the cavity is left to stand for 6-7 minutes; 5) after standing, the glass is gently tapped, and appropriate pressure is applied to try to expel air, and then the reserved glue spraying port is quickly sealed, and the glass is clamped and fixed immediately after sealing; (here, the gentle tapping of the glass only needs to apply a force that can expel air without breaking the glass) 6) after careful inspection for no bubbles, the laminated glass with the injected glue is placed horizontally under sunlight or a violet light for irradiation, and after solidification, the laminated glass is accepted, and the finished product is stored in the warehouse after acceptance.

[0044] Comparative Example 1

[0045] S1: 20 g of silver bromide, 30 g of silver chloride, 70 g of inorganic photochromic powder (10 g of titanium dioxide, 25 g of vanadium pentoxide, and 35 g of tungsten trioxide), and 30 g of aluminum oxide are ground into particles with a particle size of 8 microns using a super-fine dry grinding machine; S2: the ground silver bromide, silver chloride, inorganic photochromic powder, and aluminum oxide are added to 300 g of chlorobutyl glue water, and stirred into a transparent water paste mixture A in an environment with a temperature of 40-50°C and a humidity of 50-60% and without dust; S3: the mixture A is wet ground in an environment with a temperature of 28-32°C, and the mixture A is ground into a paste with a particle size of 0.1 microns; S4: the wet ground paste in S3 is automatically filtered, and particles with a particle size of less than or equal to 0.1 microns are filtered out, so that a spraying liquid B composed of particles with a particle size of less than or equal to 0.1 microns and a paste C composed of particles with a particle size of greater than 0.1 microns are obtained; S5: the paste C is re-wet ground in the wet grinding step in S3 until the qualified spraying liquid B is obtained; S6: the qualified spraying liquid B is transported to a spraying liquid storage place using a liquid delivery pump, and the temperature of the spraying liquid B storage is 30-40°C; S7: the preparation of the laminated glass is performed, and the preparation process is as follows: 1) two pieces of glass to be laminated are cleaned with acetone and dried; 2) a PVB glue film strip soaked in glue solution is inserted into the four corners of the upper and lower glass to form a cavity, the height of the cavity is 0.2 mm, and the cavity is clamped with a clamp, and a glue spraying port is reserved for glue spraying; 3) the spraying liquid C is degassed using a vacuum pump; 4) the glass is heated to 55-60°C, and the degassed spraying liquid C is slowly sprayed into the cavity through the reserved glue spraying port, and the measured spraying liquid C is left to stand for 6-7 minutes after spraying; 5) after standing, the glass is gently tapped and appropriate pressure is applied to try to expel air, and then the reserved glue spraying port is quickly sealed, and the glass is clamped and fixed immediately after sealing; (here, the gentle tapping of the glass only needs to apply a force that can expel air without breaking the glass) 6) after careful inspection for no bubbles, the laminated glass with glue injection is placed horizontally under sunlight or a violet light for irradiation, and after solidification, the product is accepted and stored in the warehouse after passing the acceptance.

[0046] Comparative Example 2

[0047] S1: 50g of silver bromide, 70g of silver chloride, 90g of inorganic photochromic powder (45g of molybdenum trioxide, 10g of titanium dioxide, 35g of tungsten trioxide) and 50g of aluminum oxide are ground into particles with a particle size of 8 microns by a superfine dry grinding machine; S2: the ground silver bromide, silver chloride, inorganic photochromic powder and aluminum oxide are added into 700g of neoprene glue, and stirred into a transparent water paste mixture A in an environment with a temperature of 40-50°C, a humidity of 50-60% and no dust; S3: the mixture A is wet ground in an environment with a temperature of 28-32°C, and the mixture A is ground into a paste with a particle size of 0.1 micron; S4: the wet ground paste in S3 is automatically filtered, and particles with a particle size of less than or equal to 0.1 micron are filtered out, so that a spraying liquid B composed of particles with a particle size of less than or equal to 0.1 micron and a paste C composed of particles with a particle size of greater than 0.1 micron are obtained; S5: the paste C is re-wet ground in the wet grinding step of S3 until the qualified spraying liquid B is obtained; S6: the qualified spraying liquid B is transported to a spraying liquid storage place by a liquid delivery pump, wherein the storage temperature of the spraying liquid B is 30-40°C; S7: the preparation of the laminated glass is carried out, and the preparation process is as follows: 1) two pieces of glass to be laminated are cleaned with acetone and dried; 2) a PVB glue film strip soaked in glue solution is embedded around the upper and lower two pieces of glass to form a cavity with a height of 0.5mm, and the cavity is clamped with a clamp, and a glue injection port is reserved for glue injection; 3) the spraying liquid C is degassed by a vacuum pump; 4) the glass is heated to 55-60°C, and the degassed spraying liquid C is slowly injected into the cavity through the reserved glue injection port, and the measured spraying liquid C is injected and then left to stand for 6-7 minutes; 5) after standing, the glass is gently tapped and appropriate pressure is applied to try to expel air, and then the reserved glue injection port is quickly sealed, and the glass is clamped and fixed immediately after sealing; (here, the gentle tapping of the glass only needs to apply a force that can expel air without breaking the glass) 6) after careful inspection for no bubbles, the laminated glass with injected glue is placed horizontally under sunlight or a violet light for irradiation, and after solidification, the laminated glass is accepted and then stored in a warehouse.

[0048] I. The implementation effect of the performance of each aspect of the product:

[0049] 1. Test of light transmission adjustment performance:

[0050] (1) The transmission spectrum from the initial state to the recovery after 15 minutes is tested, and the specific transmission spectrum is shown in the accompanying drawings of the specification Figure 1 , wherein Figure 1 The five curves from top to bottom are the initial state, irradiation for 5 minutes, recovery for 5 minutes, recovery for 10 minutes and recovery for 15 minutes;

[0051] (2) The transmission time curve of the discoloration and recovery process is tested, and the specific transmission time curve is shown in the accompanying drawings of the specificationFigure 2 wherein Figure 2 The two curves from top to bottom in the figure are irradiation 5 min and irradiation 10 min, and the transmittance data table of the color-changing composite is as follows:

[0052] Color-changing composite transmittance data table

[0053]

[0054] (3) Daylighting simulation parameters:

[0055] Building: window-wall ratio 1 / 4, indoor net width 11.2 m, net height 2.6 m, net depth 7.2 m; light intensity: uniform ambient light, brightness is 5000 cd / m2, 15000 cd / m2;

[0056] Wall: thickness 400 mm, non-transparent, wall surface: 10% A (absorption) + 90% R (reflection); glass: refractive index 1.5, transmittance is 10%~90%.

[0057]

[0058] According to the "Standard for Architectural Daylighting Design" GB50033-2013 3.0.1~3.0.3:

[0059] 1) daylighting coefficient standard % = indoor natural light standard value / outdoor design illuminance;

[0060] 2) According to the specification, the outdoor design illuminance is 15000 lx, and the outdoor critical illuminance is 5000 lx;

[0061] 3) The upper limit value of the daylighting standard should not be higher than the range of the previous daylighting grade, and the daylighting coefficient value should not be higher than 7%;

[0062] 4) Therefore, the indoor daylighting illuminance should not exceed 15000x7% = 1050 lx.

[0063] Outdoor design illuminance: meeting this illuminance, the working place can be fully illuminated by natural light.

[0064] Outdoor critical illuminance: below this illuminance, the indoor needs artificial lighting.

[0065] See Figure 3 for details, and the specific parameter comparison is shown in the following table:

[0066]

[0067] From the above (1) to (3), the following conclusions are drawn: 1) the transmittance can be rapidly adjusted greatly in different light environments (dark / light); a bright field is provided in dark light, and glare is prevented in bright light; 2) the indoor light environment is often in an over-bright state under natural light, and the use of light color glass with adjustable transmittance can effectively reduce the use of sunshade components.

[0068] 2. Test of ultraviolet insulation performance:

[0069] The present application tests the ultraviolet-visible spectrum of different glasses, and the test results are shown in the following four curves in the accompanying drawings of the specification: Figure 4 , wherein Figure 4 The four curves in the above formula, from top to bottom, are the product, the general glass, the high-transmittance LowE glass and the low-transmittance LowE glass, and the transmittance data of the ultraviolet calculation band are as follows:

[0070] Transmittance data of the ultraviolet calculation band

[0071]

[0072]

[0073] Ultraviolet transmittance of different bands: UVA (315-400nm): 0.2%; UVB (280-315nm): 0.1%; UVC (200-289nm): 4.5%.

[0074] In summary: the product can block more than 99.9% of ultraviolet radiation (300-380nm), greatly reducing the damage of outdoor light to the human eye and skin, and effectively reducing the aging speed of automobile and building interior parts.

[0075] 3. Test of heat insulation and energy saving performance:

[0076] (1) The present application tests the transmittance spectrum from the initial state to irradiation for 10 minutes, and the specific test results are shown in the following three curves in the accompanying drawings of the specification: Figure 5 , wherein Figure 5 The three curves in the above formula, from top to bottom, are the initial state, irradiation for 5 minutes and irradiation for 10 minutes, and the solar transmittance calculated according to the above formula is as follows: Figure 5

[0077]

[0078] (2) The photochromic glass is tested and reported, and the specific test results are shown in the following three curves in the accompanying drawings of the specification: Figure 6 ​Wherein, SHGC (Solar Heat Gain Coefficient) = SG (Shading Coefficient) x 0.87 = 0.58; SHGC-High Transmittance LowE: 0.67; SHGC-Low Transmittance LowE: 0.38. The solar heat gain coefficient of this product is lower than that of high transmittance LowE glass (75.7%).

[0079] (3) This invention tested the radiation shielding performance of the xenon lamp under different irradiance intensities, as detailed in the accompanying drawings of the specification. Figure 7 ,in Figure 7 The four curves in the image, from top to bottom, represent 800W / ㎡ for building #3, 1000W / ㎡ for building #3, 1100W / ㎡ for building #3, and 1200W / ㎡ for building #3. Figure 7 It is known that after saturation, it can block 55% to 60% of radiation;

[0080] (4) This invention tested the radiation transmittance of the same thickness product, ordinary glass, and LowE glass under a xenon lamp. See the appendix of the instruction manual for details. Figure 8 ;

[0081] (5) This invention tested the solar shading performance in a real outdoor setting for 1 minute. Real-time data graphs are attached to the instruction manual. Figure 9 ,in Figure 9 The two curves in the diagram, from top to bottom, represent the area in front of the glass (direct sunlight) and the area behind the glass (through the viewing window). The outdoor sunlight in front of the glass (direct sunlight) is approximately 1010 W / m². The initial value of the left end of the curve behind the glass (through the viewing window) is 790 W / m², and the value at the right end after one minute is 637 W / m², which can block about 40% of the solar radiation after one minute.

[0082] Based on the above (1)-(5), the following conclusion is drawn: This product has an effective ability to block solar radiation.

[0083] 4. Weather resistance stability test:

[0084] This invention was carried out in accordance with the standard GB15763.3-2009 Safety Glass for Building - Part 3: Laminated Glass, and third-party testing was conducted. The test report, instruction manual, and accompanying drawings are included. Figure 10 According to third-party testing, the heat resistance, moisture resistance, and radiation resistance of this product all meet the national standards for laminated glass.

[0085] II. Comparison data between this product and the comparative example:

[0086] 1. Comparison of light transmission adjustment performance:

[0087] Initial Irradiate 5 min Re-illuminate 5 min Re-illuminate 10 min Re-illuminate 15 min Example 1 85.6％ 29.2％ 42.9％ 51.0％ 57.4％ Example 2 85.6％ 29.2％ 42.9％ 51.0％ 57.4％ Example 3 85.6％ 29.2％ 42.9％ 51.0％ 57.4％ Example 4 85.6％ 29.2％ 42.9％ 51.0％ 57.4％ Comparative Example 1 80.2％ 55.1％ 62.4％ 68.3％ 72.2％ Comparative Example 2 81.4％ 60.3％ 68.1％ 72.5％ 74.5％

[0088] Color-changing and vision-restoring transmittance data table (where the data in the table are transmittance).

[0089] Therefore, only the variable color glass prepared by the specific components, the specific proportion and the specific process of the present application has the best light transmission adjusting performance, the light transmittance of the product can be greatly and rapidly adjusted, and the adjusting speed and the adjusting range of Comparative Example 1 and Comparative Example 2 are relatively slow and small.

[0090] 2. Comparison of ultraviolet shielding performance:

[0091]

[0092]

[0093] Transmission ratio data of ultraviolet calculation wave band (the data in the table is the transmission ratio of ultraviolet)

[0094] Therefore, only the variable color glass prepared by the specific components, the specific proportion and the specific process of the present application has the best ultraviolet shielding performance, the product can shield more than 99.9% of ultraviolet radiation, and the ultraviolet radiation that can be shielded by Comparative Example 1 and Comparative Example 2 is significantly less than that of the product.

[0095] 3. Comparison of heat insulation and energy saving performance:

[0096] Solar heat gain coefficient (SHGC) Example 1 0.58 Example 2 0.58 Example 3 0.58 Example 4 0.58 Comparative Example 1 0.69 Comparative Example 2 0.73

[0097] Solar heat gain coefficient data table

[0098] Therefore, only the variable color glass prepared by the specific components, the specific proportion and the specific process of the present application has the best heat insulation and energy saving performance, the product has effective heat insulation effect, and the heat insulation effect of Comparative Example 1 and Comparative Example 2 is significantly worse than that of the product.

[0099] 4. Comparison of weather resistance and stability performance:

[0100]

[0101] Comparison table of heat resistance, moisture resistance and radiation resistance

[0102] Therefore, only the variable color glass prepared by the specific components, the specific proportion and the specific process of the present application has the best weather resistance and stability performance, the heat resistance, the moisture resistance and the radiation resistance of the product all meet the national standard requirements of laminated glass, and the heat resistance, the moisture resistance and the radiation resistance of Comparative Example 1 and Comparative Example 2 cannot all meet the national standard requirements of laminated glass.

[0103] It should be noted that the above examples are only used to illustrate the present application and not intended to limit the scope of the present application. Furthermore, it should be appreciated that those skilled in the art can make various modifications or changes to the present application after reading the content of the present application, and these equivalent forms should also fall within the scope of the appended claims of the present application.

Claims

1. A method for preparing laminated glass with good overall performance, characterized in that, Includes the following steps: S1: 3 parts by weight of silver bromide, 7 parts by weight of silver chloride, 9 parts by weight of inorganic photochromic powder and 2 parts by weight of alumina were ground into 8-micron particles by an ultrafine dry grinding mill. S2: The ground silver bromide, silver chloride, inorganic photochromic powder and alumina are added to a mixture of 150 parts by weight of QIS-5705 elastic sealant and neoprene adhesive, and heated and stirred to form a transparent water-paste mixture A; the inorganic photochromic powder is composed of molybdenum trioxide, vanadium pentoxide and tungsten trioxide, wherein the mass ratio of molybdenum trioxide, vanadium pentoxide and tungsten trioxide is 5:3:1; S3: Wet grinding of mixture A; S4: The paste after wet grinding in S3 is filtered by fully automatic filtration to filter out particles smaller than or equal to 0.1 micrometers, thus obtaining spray liquid B composed of particles smaller than or equal to 0.1 micrometers and paste C composed of particles larger than 0.1 micrometers. S5: Repeat the wet grinding step in step S3 with paste C until qualified spray liquid B is obtained; S6: Use a liquid transfer pump to deliver the qualified spraying liquid B to the spraying liquid storage area; S7: Prepare laminated glass. The preparation process is as follows: 1) Clean the two pieces of glass that need to be laminated with acetone and let them dry; 2) Embed the PVB film strips soaked in adhesive around the upper and lower glass pieces to form a cavity with a height of 0.05mm-0.08mm. Clamp it with clips. When edging, leave a spray nozzle for adhesive spraying. 3) Degas the spraying liquid B using a vacuum pump; 4) Heat the glass and slowly spray the degassed spray liquid B into the cavity through the reserved spray nozzle. After spraying the metered spray liquid B, let it stand for 6-7 minutes. 5) After letting it stand, gently tap the glass to apply appropriate pressure and expel as much air as possible. Then quickly seal the pre-reserved spray nozzle and clamp it tightly after sealing. 6) After carefully checking for air bubbles, place the laminated glass with the sealant applied horizontally under sunlight or ultraviolet light and allow it to cure. After the sealant has cured, inspect the product. Once the product passes inspection, put it into storage.

2. The method for preparing laminated glass with good comprehensive performance according to claim 1, characterized in that, In step S2, the mass ratio of QIS-5705 elastic sealant to neoprene adhesive is 4:

11.

3. The method for preparing laminated glass with good comprehensive performance according to claim 1, characterized in that, The fully automated filtration in step S4 uses a multi-bag filter.

4. The method for preparing laminated glass with good comprehensive performance according to claim 1, characterized in that, In step S2, stirring is carried out in a dust-free environment with constant temperature and humidity, wherein the temperature is maintained at 40℃-50℃ and the humidity is maintained at 50%-60%.

5. The method for preparing laminated glass with good comprehensive performance according to claim 1, characterized in that, The temperature for wet grinding in step S3 is 28℃-32℃.

6. The method for preparing laminated glass with good comprehensive performance according to claim 1, characterized in that, In step S6, the spraying liquid B is stored at a temperature of 30℃-40℃.

7. The method for preparing laminated glass with good comprehensive performance according to claim 1, characterized in that, The temperature for heating the glass in step S7 is 55℃-60℃.

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