CN111847906A - Laminated glass and preparation method thereof - Google Patents
Laminated glass and preparation method thereof Download PDFInfo
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- CN111847906A CN111847906A CN202010698572.7A CN202010698572A CN111847906A CN 111847906 A CN111847906 A CN 111847906A CN 202010698572 A CN202010698572 A CN 202010698572A CN 111847906 A CN111847906 A CN 111847906A
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- glass substrate
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- polyvinyl butyral
- transparent film
- laminated
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- 239000005340 laminated glass Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000011521 glass Substances 0.000 claims abstract description 160
- 239000000758 substrate Substances 0.000 claims abstract description 142
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims abstract description 65
- 239000004744 fabric Substances 0.000 claims abstract description 18
- 238000005086 pumping Methods 0.000 claims description 17
- 238000010030 laminating Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 abstract description 6
- 239000003292 glue Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 239000005329 float glass Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention is suitable for the technical field of laminated glass, and provides laminated glass and a preparation method thereof, wherein the laminated glass comprises a first glass substrate, a first polyvinyl butyral transparent film, a second glass substrate, a second polyvinyl butyral transparent film and a third glass substrate which are sequentially laminated on the first glass substrate, and the side walls of the first glass substrate, the second glass substrate and the third glass substrate are provided with edge wrapping cloth and a bonding tape. The edge wrapping cloth and the adhesive tape are arranged on the side walls of the first glass substrate, the second glass substrate and the third glass substrate, so that the exposed edges of the first polyvinyl butyral transparent film and the second polyvinyl butyral transparent film in the laminated glass can be prevented from being easily affected with damp and being subjected to glue failure, the stress performance of the whole laminated glass is reduced, and the safety of the laminated glass is enhanced.
Description
Technical Field
The invention relates to the technical field of laminated glass, in particular to laminated glass and a preparation method thereof.
Background
The laminated glass is a composite glass product which is formed by sandwiching one or more layers of organic polymer intermediate films between two or more pieces of glass and permanently bonding the glass and the intermediate films into a whole after special process treatment. Since laminated glass has many advantages compared with common glass, as building safety and scenic spot safety are more and more emphasized, PVB (PolyVinyl Butyral) and SGP (sentry glassplus) laminated glass are more and more widely used.
However, the laminated glass of PVB and SGP may have situations such as the release of adhesive from the interlayer film during use, which results in uneven distribution of stress in the sandwiched glass, and the laminated glass may break when subjected to a strong external force, resulting in severe reduction of the safety performance of the laminated glass.
Disclosure of Invention
The invention aims to provide laminated glass and a preparation method thereof, and aims to solve the technical problem that the safety performance of the conventional laminated glass is reduced due to the fact that an interlayer film is separated during the use process.
In order to achieve the purpose, the invention adopts the technical scheme that: the laminated glass comprises a first glass substrate, and a first polyvinyl butyral transparent film, a second glass substrate, a second polyvinyl butyral transparent film and a third glass substrate which are sequentially laminated on the first glass substrate, wherein edge wrapping cloth and bonding belts used for fixing the edge wrapping cloth on the side walls of the first glass substrate, the second glass substrate and the third glass substrate are arranged on the side walls of the first glass substrate, the second glass substrate and the third glass substrate.
Optionally, the thickness of the edge covering cloth is 80-100 mm.
Optionally, the first glass substrate is a float white glass substrate or an ultra-white glass substrate.
Optionally, the thickness of the first glass substrate is 8-12 mm;
the thickness of the second glass substrate is 8-12 mm;
the thickness of the third glass substrate is 8-12 mm.
Optionally, the thickness of the first polyvinyl butyral transparent film is 1-2 mm;
and/or the second polyvinyl butyral transparent film has a thickness of 1-2 mm.
The invention also provides a laminated glass method, which comprises the following steps:
sending the first glass substrate, the second glass substrate and the third glass substrate into a laminating chamber;
adjusting the temperature and humidity of the film combination operation chamber to enable the water content of the first polyvinyl butyral transparent film and the water content of the second polyvinyl butyral transparent film to be in a proper range;
laminating and laminating a first polyvinyl butyral transparent film, a second glass substrate, a second polyvinyl butyral transparent film and a third glass substrate on the first glass substrate in sequence to assemble laminated glass, and then placing the laminated glass in a vacuum pump for cold vacuumizing treatment;
placing the sandwich glass subjected to the cold pumping treatment in a high-pressure reaction kettle for hot vacuum pumping treatment;
And opening the high-pressure reaction kettle, and taking out the laminated glass.
Optionally, before the step of sending the first glass substrate, the second glass substrate and the third glass substrate into the laminating chamber, the method further comprises the following steps:
the first glass substrate, the second glass substrate, and the third glass substrate are cleaned by a cleaning machine, respectively.
Optionally, the temperature range of the sheet combination operation chamber is 18-28 ℃, and the humidity ratio range is 18-30%.
Optionally, the cold pumping time of the vacuum pump is 5-10 min.
Optionally, the step of placing the laminated glass subjected to the cold pumping treatment in a high-pressure reaction kettle for hot vacuum pumping treatment comprises the following steps:
s01: adjusting the temperature range of the high-pressure reaction kettle to 60-80 ℃ and the pressure range to 0.45-0.60 MPa, and then reacting for 3-8 min under the conditions;
s02: adjusting the temperature range of the high-pressure reaction kettle to 90-100 ℃, the pressure range to 0.9-1.0 MPa, and reacting for 5-10 min under the conditions;
and S03, adjusting the temperature of the high-pressure reaction kettle to 120-138 ℃, adjusting the pressure to 1.2-1.25 MPa, and reacting for 60-90 min under the conditions.
The laminated glass provided by the invention has the beneficial effects that: compared with the prior art, the laminated glass has higher sound insulation performance through the mutual cooperation among the structural film layers by sequentially laminating the first polyvinyl butyral transparent film, the second glass substrate, the second polyvinyl butyral transparent film and the third glass substrate on the first glass substrate; the edge wrapping cloth and the adhesive tape are arranged on the side walls of the first glass substrate, the second glass substrate and the third glass substrate, so that the exposed edges of the first polyvinyl butyral transparent film and the second polyvinyl butyral transparent film in the laminated glass can be prevented from being easily affected with damp and being subjected to glue failure, the stress performance of the whole laminated glass is reduced, and the safety of the laminated glass is enhanced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a structural view of a laminated glass provided in an embodiment of the present invention;
fig. 2 is a flowchart illustrating steps of a method for manufacturing a laminated glass according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a first glass substrate;
2-a first polyvinyl butyral clear film;
3-a second glass substrate;
4-a second polyvinyl butyral clear film;
5-a third glass substrate;
6-edge wrapping cloth.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
As shown in fig. 1, the present embodiment proposes a laminated glass including a first glass substrate 1, a first polyvinyl butyral transparent sheet 2, a second glass substrate 3, a second polyvinyl butyral transparent sheet 4, and a third glass substrate 5 laminated in this order on the first glass substrate 1, and furthermore, edge-covering cloths 6 and adhesive tapes (not shown) are provided on the side walls of the first glass substrate 1, the second glass substrate 3, and the third glass substrate 5, respectively, and the edge-covering cloths 6 cover the side walls of the first glass substrate 1, the second glass substrate 3, and the third glass substrate 5, and the adhesive tapes fix the edge-covering cloths 6 to the first glass substrate 1, the second glass substrate 3, and the third glass substrate 5. In this way, the first polyvinyl butyral transparent film 2, the second glass substrate 3, the second polyvinyl butyral transparent film 4 and the third glass substrate 5 are sequentially laminated on the first glass substrate 1, and the mutual cooperation among the structural film layers enables the laminated glass to have high sound insulation performance; the edge wrapping cloth 6 and the adhesive tape are arranged on the side walls of the first glass substrate 1, the second glass substrate 3 and the third glass substrate 5, so that the phenomenon that the exposed edges of the first polyvinyl butyral transparent film 2 and the second polyvinyl butyral transparent film 4 in the laminated glass are easily affected with damp to cause glue failure is prevented, the integral stress of the laminated glass is reduced, and the safety of the laminated glass is enhanced.
In the invention, the first polyvinyl butyral transparent film 2 and the second polyvinyl butyral transparent film 4 are clamped by the three layers of glass substrates, so that the glass substrates have higher strength, and the safety and the sound insulation of the glass substrates are enhanced; through setting up bordure cloth 6 and adhesive tape to can live the lateral wall seal of three-layer glass substrate, avoid pressing from both sides the film between three-layer glass substrate and wet and come unstuck and reduce the holistic atress of glass.
In the present invention, the first polyvinyl butyral transparent sheet 2 or the second polyvinyl butyral transparent sheet 4 may be replaced with an ionic interlayer sheet. Therefore, the ionic intermediate film adhesive sheet is selected, so that the laminated glass has high bonding capacity and high tear strength, and the glass is effectively prevented from being broken and flying. Of course, the first polyvinyl butyral transparent film 2 and the second polyvinyl butyral transparent film 4 can be replaced by films of other materials according to actual conditions and specific requirements, and are not limited herein.
Preferably, the thickness of the edge covering cloth 6 is 80-100 mm. Specifically, the edge covering cloth 6 can be designed according to the specific conditions of the use environment of the glass product, so that the thickness of the edge covering cloth 6 can meet various use requirements. In this embodiment, the thickness of the edge covering cloth 6 may be 80mm, 85mm, 90mm, 95mm, 100mm, etc., so that by setting the thickness of the edge covering cloth 6 to the above range, the occurrence of the debonding of the film in the laminated glass can be effectively ensured, and at the same time, the thickness of the edge covering cloth 6 is not too thick.
Preferably, the first glass substrate 1 is a float white glass substrate, and since the float glass is made by floating glass on the surface of molten tin, the glass has good flatness, no water ripple and is not easy to deform; secondly, because the float glass mostly uses the ore quartz sand as the raw material, and the raw material is good, the produced glass is relatively pure and has higher transparency, and simultaneously has no defects such as bubbles, and the float glass also has the advantages of heavy weight, compact structure, smooth hand feeling, larger specific gravity per square meter than the flat glass with the same thickness, and is not easy to damage. Of course, in the present invention, the first glass substrate 1 may also be an ultra-white glass substrate, so that the glass substrate has a higher transmittance and a better low emissivity, and is not limited herein.
In the present invention, the second glass substrate 3 and the third glass substrate 5 are both float glass substrates or ultra-white glass substrates, which are substrates made of the same material as the first glass substrate 1.
Preferably, the thickness of the first glass substrate 1 is 8-12 mm, the thickness of the second glass substrate 3 is 8-12 mm, and the thickness of the third glass substrate 5 is 8-12 mm, specifically, the thicknesses of the first glass substrate 1, the second glass substrate 3, and the third glass substrate 5 can all satisfy various use requirements according to the specific conditions of the use environment of the glass product, such as high safety and sound insulation. In the present embodiment, the thickness of the first glass substrate 1 is 8mm, 8.5mm, 9mm, 9.5mm, 10mm, or the like. In the present embodiment, the first glass substrate 1, the second glass substrate 3, and the third glass substrate 5 each have a thickness of 8 mm.
Preferably, the thickness of the first polyvinyl butyral transparent film 2 is 1-2 mm, and the thickness of the second polyvinyl butyral transparent film 4 is 1-2 mm. Specifically, the thickness of the first polyvinyl butyral transparent film 2 and the thickness of the second polyvinyl butyral transparent film 4 can meet various use requirements according to the specific conditions of the use environment of the glass product, such as higher safety. Specifically, the thicknesses of the first polyvinyl butyral transparent film 2 and the second polyvinyl butyral transparent film 4 can meet various use requirements according to the specific conditions of the use environment of the glass product, such as high safety and sound insulation. In this embodiment, the first polyvinyl butyral transparent sheet 2 and the second polyvinyl butyral transparent sheet 4 have a thickness of 1.52 mm.
The invention also provides a method for laminating glass, which refers to fig. 2 and comprises the following steps:
sending the first glass substrate 1, the second glass substrate 3 and the third glass substrate 5 into a laminating chamber;
adjusting the temperature and humidity of the film combination operation chamber to enable the water content of the first polyvinyl butyral transparent film 2 and the water content of the second polyvinyl butyral transparent film 4 to be in a proper range;
Sequentially laminating and pressing a first polyvinyl butyral transparent film 2, a second glass substrate 3, a second polyvinyl butyral transparent film 4 and a third glass substrate 5 on the first glass substrate 1 to assemble laminated glass, and then placing the laminated glass in a vacuum pump for cold vacuumizing treatment;
placing the sandwich glass subjected to the cold pumping treatment in a high-pressure reaction kettle for hot vacuum pumping treatment;
and opening the high-pressure reaction kettle, and taking out the laminated glass.
In the invention, the water content of the first polyvinyl butyral transparent film 2 and the second polyvinyl butyral transparent film 4 is in a proper range by adjusting the temperature and the humidity of the film combining operation chamber, thereby providing a guarantee for realizing better bonding with the glass substrate; the laminated and assembled laminated glass is placed in a vacuum pump for cold vacuumizing treatment, so that the pressure on each part of the laminated glass is uniform, the gas in the laminated glass is pumped out, and the sealing performance of the laminated glass is enhanced; the cold-pumped laminated glass is sent to a high-pressure reaction kettle for hot vacuum pumping treatment, so that the laminated glass is uniformly heated, and the water content of the first polyvinyl butyral transparent film 2 and the second polyvinyl butyral transparent film 4 is improved through heating, so that the first polyvinyl butyral transparent film 2 and the second polyvinyl butyral transparent film 4 have higher viscosity, and the viscosity of the laminated glass is increased integrally; through carrying out high-pressure treatment to can extrude the bubble between each intermediate layer, realize the better bonding of laminated glass, through with laminated glass coldly press, after the high-pressure treatment, further strengthen laminated glass's security and sound insulation, reduce the emergence of accident, effective noise pollution abatement.
Further, before the step of feeding the first glass substrate 1, the second glass substrate 3, and the third glass substrate 5 into the laminating chamber, the method further comprises the steps of:
the first glass substrate 1, the second glass substrate 3, and the third glass substrate 5 are cleaned by a cleaning machine, respectively.
In the invention, the first glass substrate 1, the second glass substrate 3 and the third glass substrate 5 are cleaned, so that dust or impurities on the first glass substrate 1, the second glass substrate 3 and the third glass substrate 5 are removed, and a better guarantee is provided for arranging the first polyvinyl butyral transparent film 2 and the second polyvinyl butyral transparent film 4 on the glass substrates.
Preferably, the temperature range of the sheet combining operation chamber is 18-28 ℃, and the humidity ratio range is 18-30%. Specifically, the temperature of the operation chamber is controlled by controlling the temperature and humidity ranges, so that the water content of the first polyvinyl butyral transparent film 2 and the water content of the second polyvinyl butyral transparent film 4 are in a proper range, and a guarantee is provided for bonding the glass substrate in a subsequent process. In the present invention, the first polyvinyl butyral transparent sheet 2 and the second polyvinyl butyral transparent sheet 4 have a water content of 0.22% to 0.52%, specifically, the temperature range of the operation chamber may be 18 ℃, 20 ℃, 22 ℃, 24 ℃, 26 ℃ or the like, and the humidity ratio may be 18%, 20%, 22%, 23%, 25% or the like.
Preferably, the cold pumping time of the vacuum pump is 5-10 min. Specifically, the cold pumping time of the vacuum pump is 5min, 6min, 7min, 8min, 9min and the like. By setting the interval, the laminated glass can be ensured to have enough time to react in the cooperation operation chamber, and edge sealing of the glass substrate in the laminated glass can be realized.
Further, the step of placing the sandwich glass subjected to the cold pumping treatment in a high-pressure reaction kettle for hot vacuum pumping treatment comprises the following steps:
s01: adjusting the temperature range of the high-pressure reaction kettle to 60-80 ℃ and the pressure range to 0.45-0.60 MPa, and then reacting for 3-8 min under the conditions;
s02: adjusting the temperature range of the high-pressure reaction kettle to 90-100 ℃, the pressure range to 0.9-1.0 MPa, and reacting for 5-10 min under the conditions;
and S03, adjusting the temperature of the high-pressure reaction kettle to 120-138 ℃, adjusting the pressure to 1.2-1.25 MPa, and reacting for 60-90 min under the conditions.
In the invention, the laminated glass is placed in the high-pressure reaction kettle for three times of heat vacuumizing treatment, namely, the temperature of the high-pressure reaction kettle is gradually increased, so that on one hand, the phenomenon that the temperature of the laminated glass is heated too fast to generate thermal stress in the laminated glass can be avoided; on the other hand, the moisture in the laminated glass is gasified; the pressure of the high-pressure reaction kettle is gradually increased, so that gas such as water vapor in the laminated glass can be effectively discharged, and the viscosity between the laminated glass is increased; in addition, the reaction time is gradually increased along with the increase of the temperature and the pressure, so that the glass has more sufficient reaction time. Preferably, in the present invention, the temperature of the high pressure reaction kettle can be 70 ℃, 95 ℃ and 125 ℃ in sequence, the pressure can be 0.45MPa, 0.9MPa and 1.2MPa in sequence, and the reaction time can be 5min, 9min and 60min in sequence.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The laminated glass is characterized by comprising a first glass substrate, and a first polyvinyl butyral transparent film, a second glass substrate, a second polyvinyl butyral transparent film and a third glass substrate which are sequentially laminated on the first glass substrate, wherein edge wrapping cloth and bonding belts used for fixing the edge wrapping cloth on the side walls of the first glass substrate, the second glass substrate and the third glass substrate are arranged on the side walls of the first glass substrate, the second glass substrate and the third glass substrate.
2. The laminated glass according to claim 1, wherein the thickness of the edge covering cloth is 80 to 100 mm.
3. The laminated glass according to claim 1, wherein the first glass substrate is a float white glass substrate or an ultra white glass substrate.
4. A laminated glass according to claim 1,
The thickness of the first glass substrate is 8-12 mm;
the thickness of the second glass substrate is 8-12 mm;
the thickness of the third glass substrate is 8-12 mm.
5. A laminated glass according to claim 1,
the thickness of the first polyvinyl butyral transparent film is 1-2 mm;
and/or the second polyvinyl butyral transparent film has a thickness of 1-2 mm.
6. The preparation method of the laminated glass is characterized by comprising the following steps:
sending the first glass substrate, the second glass substrate and the third glass substrate into a laminating chamber;
adjusting the temperature and humidity of the film combination operation chamber to enable the water content of the first polyvinyl butyral transparent film and the water content of the second polyvinyl butyral transparent film to be in a proper range;
laminating and laminating a first polyvinyl butyral transparent film, a second glass substrate, a second polyvinyl butyral transparent film and a third glass substrate on the first glass substrate in sequence to assemble laminated glass, and then placing the laminated glass in a vacuum pump for cold vacuumizing treatment;
placing the sandwich glass subjected to the cold pumping treatment in a high-pressure reaction kettle for hot vacuum pumping treatment;
And opening the high-pressure reaction kettle, and taking out the laminated glass.
7. The method of claim 6, wherein the step of feeding the first glass substrate, the second glass substrate, and the third glass substrate into the laminating chamber further comprises the steps of:
the first glass substrate, the second glass substrate, and the third glass substrate are cleaned by a cleaning machine, respectively.
8. The method of claim 7, wherein the temperature of the laminating chamber is in the range of 18 ℃ to 28 ℃ and the humidity ratio is in the range of 18% to 30%.
9. The method according to claim 7, wherein the vacuum pump has a cool pumping time of 5 to 10 min.
10. The method for preparing laminated glass according to claim 7, wherein the step of placing the laminated glass subjected to the cold pumping treatment in a high-pressure reaction kettle for hot vacuum pumping treatment comprises the following steps:
s01: adjusting the temperature range of the high-pressure reaction kettle to 60-80 ℃ and the pressure range to 0.45-0.60 MPa, and then reacting for 3-8 min under the conditions;
s02: adjusting the temperature range of the high-pressure reaction kettle to 90-100 ℃, the pressure range to 0.9-1.0 MPa, and reacting for 5-10 min under the conditions;
And S03, adjusting the temperature of the high-pressure reaction kettle to 120-138 ℃, adjusting the pressure to 1.2-1.25 MPa, and reacting for 60-90 min under the conditions.
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| CN202010698572.7A CN111847906A (en) | 2020-07-20 | 2020-07-20 | Laminated glass and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010698572.7A CN111847906A (en) | 2020-07-20 | 2020-07-20 | Laminated glass and preparation method thereof |
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| CN114371125A (en) * | 2022-01-27 | 2022-04-19 | 江苏铁锚玻璃股份有限公司 | Method for testing TPU bonding strength |
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