CN210940789U

CN210940789U - Thickened laminated glass

Info

Publication number: CN210940789U
Application number: CN201921514010.1U
Authority: CN
Inventors: 董清世; 张铁柱; 王威; 张树林
Original assignee: XINYI GLASS (TIANJIN) CO LTD
Current assignee: XINYI GLASS (TIANJIN) CO LTD
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-07-07
Anticipated expiration: 2029-09-11

Abstract

The utility model belongs to the technical field of the glass manufacturing method, especially, relate to a bodiness laminated glass. The thickened sandwich glass comprises a first glass substrate and a second glass substrate, wherein an adhesive layer is clamped between the first glass substrate and the second glass substrate, the adhesive layer comprises a plurality of films which are sequentially stacked, and the thickness of the adhesive layer is 2.28-3.8 mm. The thickness of the bonding layer of the thickened laminated glass is higher than the maximum interlayer thickness of the laminated glass in the market, the interlayer thickness of the laminated glass is thickened, and the bonding firmness, the heat insulation, the noise insulation and the impact resistance of the laminated glass are improved, so that the application range of the laminated glass is effectively widened.

Description

Thickened laminated glass

Technical Field

The utility model belongs to the technical field of glass makes, especially, relate to a bodiness laminated glass.

Background

The laminated glass is a composite glass product which is formed by two or more pieces of glass, wherein one or more layers of organic polymer intermediate films are sandwiched between the two or more pieces of glass, and the glass and the intermediate films are permanently bonded into a whole after special process treatment. In general, laminated glass is formed by sandwiching a PVB (Polyvinyl Butyral) or EVA (Ethylene-vinyl acetate copolymer) film or the like between two layers of glass and performing hot pressing treatment in an autoclave, in which the PVA or EVA is melted by heat and flows to fill a gap between the two layers of glass, and the two layers of glass are firmly bonded together after cooling.

At present, the thickness specifications of films for manufacturing laminated glass in the market are 0.38mm, 0.76mm, 1.14mm and 1.52mm, and there is no process in the market for a while to laminate films with different thickness specifications to manufacture the laminated glass, that is, the maximum interlayer thickness of the laminated glass in the market can only reach 1.52mm, but cannot be made thicker, so that the manufactured laminated glass cannot further improve the bonding firmness, the impact resistance reliability and the temperature and noise insulation performance, and the use of the laminated glass in some special application environments is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bodiness laminated glass aims at solving the limited technical problem that leads to the laminated glass performance can't effectively promote of laminated glass's among the prior art intermediate layer thickness.

In order to achieve the above object, the utility model adopts the following technical scheme: the thickened laminated glass comprises a first glass substrate and a second glass substrate which are oppositely arranged, wherein an adhesive layer is arranged between the first glass substrate and the second glass substrate in a clamping mode, the adhesive layer comprises a plurality of films which are sequentially stacked, and the thickness of the adhesive layer is 2.28 mm-3.8 mm.

Optionally, the film has a thickness of 0.38mm, 0.76mm, 1.14mm, or 1.52 mm.

Optionally, the film is a clear film and/or a colored film.

Optionally, the film is a PVB film, an EVA film, or an SGB film.

Optionally, the first glass substrate has a thickness of 2.7mm to 8mm, the first glass substrate has a cross section of (300mm to 2440mm) × (300mm to 2440mm), the second glass substrate has a thickness of 2.7mm to 8mm, and the second glass substrate has a cross section of (300mm to 2440mm) × (300mm to 2440 mm).

Optionally, the adhesive layer includes a first film, a second film, a third film, a fourth film and a fifth film, and the thicknesses of the first film, the second film, the third film, the fourth film and the fifth film are all 0.76 mm.

Optionally, the first glass substrate and the second glass substrate are both float white glass substrates.

Optionally, the first glass substrate and the second glass substrate are both float ultra white glass substrates.

The utility model provides an above-mentioned one or more technical scheme in the bodiness laminated glass have one of following technological effect at least: through pressing from both sides between first glass substrate and second glass substrate and establishing the adhesive linkage, and the adhesive linkage has a plurality of films of establishing of folding according to the preface to form, its thickness can reach 2.2.8mm ~ 3.8mm, the thickness of adhesive linkage is higher than the biggest intermediate layer thickness (1.52mm) of the existing laminated glass on the market, so, laminated glass's intermediate layer thickness further bodiness, the adhesive linkage that has bigger thickness is when improving the bonding fastness between first glass substrate and the second glass substrate, improvement laminated glass that can be better separate the temperature, separate the ability of making an uproar and shock resistance, make the utility model discloses a thickened laminated glass can be better resist various impact under the extreme environmental condition, further widen laminated glass's application scope, can satisfy bigger market demand.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced 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 to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a thickened laminated glass according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an adhesive layer of a thickened laminated glass according to a preferred embodiment of the present invention;

fig. 3 is a flow chart of a method for manufacturing a thickened laminated glass according to another embodiment of the present invention;

fig. 4 is a flow chart of a method for manufacturing a thickened laminated glass according to another embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-first glass substrate 20-second glass substrate 30-adhesive layer

31-first film 32-second film 33-third film

34-fourth film 35-fifth film.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-4 are exemplary and intended to be used to illustrate the invention, but should not be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a thickened laminated glass, which includes a first glass substrate 10 and a second glass substrate 20 that are arranged relatively, an adhesive layer 30 is sandwiched between the first glass substrate 10 and the second glass substrate 20, the adhesive layer 30 includes a plurality of films stacked according to a certain order, and the thickness of the adhesive layer 30 stacked to form is 2.28 mm-3.8 mm.

The thickened laminated glass provided by the embodiment of the utility model is characterized in that the adhesive layer 30 is clamped between the first glass substrate 10 and the second glass substrate 20, the adhesive layer 30 is formed by a plurality of films which are sequentially overlapped, the thickness of the adhesive layer 30 can reach 2.2-3.8 mm, the thickness of the adhesive layer 30 is higher than the maximum interlayer thickness (1.52mm) of the laminated glass which is available on the market, thus, the interlayer thickness of the laminated glass is further thickened, the adhesive layer 30 with larger thickness can better improve the heat insulation, noise insulation and impact resistance of the laminated glass while improving the bonding firmness between the first glass substrate 10 and the second glass substrate 20, and because the thickness of the adhesive layer 30 between the first glass substrate 10 and the second glass substrate 20 is thicker, when the glass is broken by impact, the fragments of the glass substrates can be bonded on the adhesive layer 30, thereby avoiding the damage to the surrounding things caused by the scattered fragments, therefore, the thickened laminated glass can better resist various impacts under extreme environmental conditions, further broadens the application range of the laminated glass, can meet larger market demands, can be suitable for the fields of show windows, showcases, art, buildings and the like, and has wide development potential and market space.

In this embodiment, the thickness of each film is 0.38mm, 0.76mm, 1.14mm or 1.52mm, and the adhesive linkage 30 of this embodiment adopts the film of the common thickness specification in the existing market to fold and establish promptly, and the film raw materials easily obtain, need not in order to process the utility model discloses a bodiness laminated glass and customize the film of special thickness specification, market compatibility is stronger, the agreeable market that can be better.

It should be noted that, because the adhesive layer 30 of the present embodiment is formed by laminating films of the existing specification, the thickness of the adhesive layer 30 is in a range of 2.28mm to 3.8mm, and the thickness value thereof is in a multiple relation with 0.38, specifically, the thickness of the adhesive layer 30 is 6 to 10 times, specifically 6 times, 7 times, 8 times, 9 times or 10 times, of the thickness of the film of 0.38mm, that is, the thickness of the adhesive layer 30 may be specifically 2.28mm, 2.66mm, 3.04mm, 3.42mm or 3.8mm, during production, the adhesive layer 30 with an appropriate thickness may be reasonably selected according to different use requirements, and the specific thickness value thereof is not limited uniquely.

In another embodiment of the utility model, the film is transparent film or colored film, be used for stacking each film that forms adhesive linkage 30 both can be transparent film, it also can be colored film to transparent film and colored film can also mix the setting, so, be used for the bodiness intermediate layer glass who makes can be colorless transparent, also can have different color effects, and the article type is abundanter.

The utility model discloses a further embodiment, the film is PVB film, EVA film or SGB film, and the film that is used for making adhesive linkage 30 can choose the film that generally is used for making laminated glass in the market for use, need not the special film of customization, and the raw materials easily acquires, is favorable to reduction in production cost.

In another embodiment of the present invention, as shown in fig. 1, the thickness of the first glass substrate 10 is preferably 2.7mm to 8mm, the size of the cross section of the first glass substrate 10 is preferably (300mm to 2440mm) × (300mm to 2440mm), the thickness of the second glass substrate 20 is preferably 2.7mm to 8mm, and the size of the cross section of the second glass substrate 20 is preferably (300mm to 2440mm) × (300mm to 2440 mm).

Specifically, in the present embodiment, the thickness of the first glass substrate 10 may be 2.7mm, 3.0mm, 3.5mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm, or the like, and correspondingly, the thickness of the second glass substrate 20 may be 2.7mm, 3.0mm, 3.5mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, or 8.0mm, or the like, and further, it is understood that when the thickness of the first glass substrate 10 and the second glass substrate 20 bonded to each other is relatively thick, the thickness of the corresponding adhesive layer 30 may be set relatively thin, whereas when the thickness of the first glass substrate 10 and the second glass substrate 20 bonded to each other is relatively thin.

More specifically, in the present embodiment, the size of the first glass substrate 10 and the second glass substrate 20 may be any size within the above range, and is not limited herein based on the size requirement under the specific use condition. In addition, it is understood that the size of the first glass substrate 10 and the second glass substrate 20 should be consistent in most cases, and few special cases may be different.

In another embodiment of the present invention, the first glass substrate 10 and the second glass substrate 20 are preferably float white glass substrates or float ultra white substrates, and because the float glass is made by floating glass on the surface of molten tin, the flatness of the glass is good, no water ripple exists, and the glass is not easy to lose shape; 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 other defects such as glass furuncle and bubbles can not exist at the same time; in addition, the float glass has the advantages of heavy weight, compact structure, smooth hand feeling, larger specific gravity per square meter than flat glass, good cutting performance and difficult breakage. In addition, the white glass and the ultra-white glass substrate have good light transmission performance, have the characteristics of being crystal clear, high-grade and elegant, and can effectively improve the light transmission performance and the aesthetic property of the processed glass finished product. Therefore, the thickened laminated glass of the present embodiment preferably employs a float white glass substrate and a float super white substrate as the first glass substrate 10 and the second glass substrate 20 to improve the overall performance of the glass product.

In another embodiment of the present invention, as shown in fig. 1 and fig. 2, a preferred embodiment of the above-mentioned thickened laminated glass is provided, in this embodiment, the adhesive layer 30 specifically includes a first film 31, a second film 32, a third film 33, a fourth film 34 and a fifth film 35 which are sequentially stacked, and the thicknesses of the first film 31, the second film 32, the third film 33, the fourth film 34 and the fifth film 35 are all 0.76mm, and the thickness of the adhesive layer 30 is 3.8mm, at this time, the thickness of the adhesive layer 30 inside the manufactured thickened laminated glass is the largest, and excellent adhesion stability and impact resistance are exhibited. As shown in the following table, the performance test data of the thickened laminated glass of the present embodiment in the quality inspection is shown, wherein the thickness of each of the first glass substrate 10 and the second glass substrate 20 is 5.0 mm:

table 1 performance test data for thickened laminated glass

Note that in the table, "√" indicates that the glass is not broken after impact, "×" indicates that the glass is broken after impact, "description of the state" indicates that the thickened laminated glass is in the state after the test, wherein the glass is not broken and is marked as "object broken," and the glass is broken and fragments are not scattered when being bonded on the adhesive layer 30 and is marked as "safe breakage," and the test value of the thickness of the adhesive layer 30 is less than 3.8mm because the thickened laminated glass needs to be subjected to a high-temperature pressurizing process in the manufacturing process, the thickness value is reduced by a very small amount, and the reduction value is within the allowable error range of the production.

In another embodiment of the present invention, as shown in fig. 3 and 4, there is also provided a method for manufacturing the above-described thickened laminated glass, comprising the steps of:

and S10, providing the first glass substrate 10, the second glass substrate 20 and a plurality of films.

S20, cleaning the first glass substrate 10 and the second glass substrate 20, and cleaning the impurities and dirt on the surfaces of the first glass substrate 10 and the second glass substrate 20, specifically, cleaning the surfaces by using a special cleaning machine, or performing spray cleaning by using a high-pressure water gun or the like; after the cleaning is completed, the moisture on the surfaces of the first glass substrate 10 and the second glass substrate 20 is wiped and dried, so that the first glass substrate 10 and the second glass substrate 20 which are dry and clean are obtained.

S30, sheet combination: and sequentially laminating and clamping a plurality of films between the first glass substrate 10 and the second glass substrate 20 to obtain the laminated glass. During laminating, the films are naturally paved between the first glass substrate 10 and the second glass substrate 20 layer by layer, and the peripheral edges of the first glass substrate 10 and the second glass substrate 20 are aligned, so that the substrates are prevented from being staggered; specifically, the sheet combining step is completed in a special sheet combining chamber, so that the first glass substrate 10 and the second glass substrate 20 are prevented from being secondarily polluted in the sheet combining process, and external impurities are prevented from being brought into the adhesive layer 30.

S40, initial pressure: carrying out primary pressing treatment on the laminated glass to obtain primary pressed laminated glass; specifically, in this embodiment, the laminated glass is subjected to preliminary pressing by using a flat pressing method, specifically, a roll press and a flat press may be used to perform preliminary pressing, and after the preliminary pressing is removed, the first glass substrate 10, the adhesive layer 30, and the second glass substrate 20 are bonded into a whole.

In this step, the thermal pressing roller of the roll press or the thermal pressing head of the flat press presses the laminated glass, and the thermal pressing roller or the thermal pressing head can generate heat while pressing, and the heat is conducted to the adhesive layer 30 to melt the film, thereby bonding the first glass substrate 10 and the second glass substrate 20 together. Specifically, the preliminary pressing step is performed in an operating room with a temperature of 18 ℃ to 28 ℃ and a humidity of 18% to 30% to ensure smooth preliminary pressing adhesion.

S50, high-temperature high-pressure forming and pressing: carrying out high-temperature and high-pressure molding pressing treatment on the initial-pressing laminated glass to obtain a finished product of thickened laminated glass; specifically, in the present embodiment, a high-temperature and high-pressure apparatus is used to perform a high-temperature and high-pressure molding pressing process on the preliminary-pressed laminated glass, and after the processing, each film in the adhesive layer 30 is completely melted, so as to firmly adhere the first glass substrate 10 and the second glass substrate 20 together, and ensure that the finished thickened laminated glass has good transparency and does not have local color difference.

In this embodiment, in the step S40, the preliminary pressure process includes a first temperature-raising stage, a second temperature-raising stage, a third temperature-raising stage and a temperature-lowering stage, specifically, the temperature of the first temperature-raising stage is 70-90 ℃, the temperature of the second temperature-raising stage is 140-180 ℃, the temperature of the third temperature-raising stage is 160-200 ℃, and the temperature of the temperature-lowering stage is 140-80 ℃. In this way, the purpose of performing the preliminary pressing treatment on the laminated glass is to discharge the gas between the first glass substrate 10 and the second glass substrate 20, thereby avoiding bubbles after the glass is molded; so, the in-process hot-pressing roller that bonds at the initial pressure or the heating of hot pressing head in the pressfitting in-process with the mode of progressively rising temperature, the temperature risees gradually and slowly melts adhesive linkage 30, compare directly set the temperature to high temperature, the slow intensification mode can avoid appearing because of laminated glass's side seals in advance all around, and the condition that leads to the unable extrusion of adhesive linkage 30 central gas to appear, thereby can prevent to produce the bubble, in addition, the temperature can slowly rise to higher stage, the film is whole to be melted during can, thereby avoid appearing the bubble because of the film melts not in place.

Further, in step S40, the laminated glass is initially pressed by a hot press roll, and the pressing speed and the pressing pressure of the hot press roll are adjusted according to the thicknesses of the first glass substrate 10, the adhesive layer 30 and the second glass substrate 20, preferably, the pressing speed of the hot press roll is 1.0m/min to 4.0m/min, specifically, 1.0m/min, 1.5m/min, 2.0m/min, 2.5m/min, 3.0m/min, 3.5m/min or 4.0m/min, the pressing pressure is preferably 0.5MPa to 2.5MPa, specifically, 0.5MPa, 1.0MPa, 1.5MPa, 2.0MPa or 2.5MPa, and the specific pressing speed and the pressing pressure may be adjusted according to the thickness of the glass and the pressing effect of the initial pressing process, which is not limited herein.

In this embodiment, in step S50, the high-temperature and high-pressure molding and pressing process is performed in a sealed high-pressure apparatus, such as an autoclave, and the high-temperature and high-pressure molding and pressing process includes a first temperature-raising and pressure-raising stage, a second temperature-raising and pressure-raising stage, a third temperature-raising and pressure-raising stage, and a temperature-lowering and pressure-lowering stage; wherein the temperature of the first temperature raising and pressure boosting stage is 90-110 ℃, the pressure is 0.45-0.55 MPa, the pressing time is 3-8 min, the temperature of the second temperature raising and pressure boosting stage is 115-125 ℃, the pressure is 0.9-1.1 MPa, the pressing time is 3-8 min, the temperature of the third temperature raising and pressure boosting stage is 135-140 ℃, the pressure is 1.2-1.3 MPa, the pressing time is 30-60 min, the temperature of the temperature lowering and pressure lowering stage is 35-45 ℃, and the pressing time is continued until high-pressure equipment such as an autoclave and the like are completely decompressed.

Because the film of the internal adhesive layer 30 of the laminated glass is not completely melted after the initial pressing treatment, the initially pressed laminated glass after the initial pressing is not completely transparent, and the peripheral sides of the glass are not completely sealed, i.e. the adhesive layer 30, the first glass substrate 10 and the second glass substrate 20 of the initially pressed laminated glass cannot achieve the effect of complete adhesion, therefore, the initially pressed laminated glass after the initial pressing needs to be sent into a high-pressure device for continuous heating and pressurizing high-pressure pressing treatment, all the films of the adhesive layer 30 can be completely melted, and the first glass substrate 10 and the second glass substrate 20 are bonded under the extrusion of air pressure. Therefore, in the high-temperature and high-pressure forming and pressing process, the temperature and the air pressure in the high-pressure equipment are pressed in a gradually rising manner, compared with the manner that the air pressure is directly filled (namely, the pressure in the high-pressure equipment is directly raised to the third temperature rise and pressure rise stage), the manner that the pressure slowly rises can avoid the condition that bubbles are generated in the center of the adhesive layer 30 due to the fact that the peripheral side portions of the laminated glass are sealed in advance, in addition, in the pressing process, the highest temperature and the maximum pressing pressure in the equipment cannot be set too high, overflow from the middle of the first glass substrate 10 and the second glass substrate 20 after the adhesive layer 30 is melted is avoided, similarly, the pressing temperature and the pressing pressure cannot be set too low, and the films of the adhesive layer 30 cannot be completely melted possibly, so that the adhesive effect and the transparency of a glass finished product.

In the embodiment, the thickened laminated glass produced by the steps can basically reach 100% of transparency, and the color film is selected without local color difference.

In another embodiment of the present invention, as shown in fig. 4, after step S50, step S60 is further included, and in step S60, the off-line quality inspection is performed on the manufactured finished product thickened laminated glass, so as to inspect various performances of the glass, such as impact resistance, thermal insulation, noise insulation, light transmittance, heat resistance, moisture resistance, radiation resistance, etc., to ensure that the finished product glass meets various use requirements of users.

The utility model discloses a preparation method for processing foretell bodiness laminated glass, when closing the piece, locate a plurality of film stromatolite clamps and make between first glass substrate 10 and the second glass substrate 20 and close piece laminated glass, carry out initial pressure and high temperature high pressure shaping suppression processing to closing piece laminated glass afterwards, alright obtain foretell bodiness laminated glass, the bodiness laminated glass who uses this method to produce, the intermediate layer thickness between first glass substrate 10 and the second glass substrate 20 can set up thickly, the bonding fastness is higher, separate the temperature and separate noise and shock resistance stronger, can satisfy bigger market demand.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a bodiness laminated glass, includes relative first glass substrate and the second glass substrate that sets up which characterized in that: an adhesive layer is clamped between the first glass substrate and the second glass substrate and comprises a plurality of films which are sequentially stacked, and the thickness of the adhesive layer is 2.28-3.8 mm.

2. A thickened laminated glass according to claim 1, characterised in that: the film has a thickness of 0.38mm, 0.76mm, 1.14mm, or 1.52 mm.

3. A thickened laminated glass according to claim 1, characterised in that: the film is transparent film or colored film.

4. A thickened laminated glass according to claim 1, characterised in that: the film is a PVB film, an EVA film or an SGB film.

5. A thickened laminated glass as claimed in claim 1, wherein the first glass substrate has a thickness of 2.7mm to 8mm, the first glass substrate has a cross-sectional size of (300mm to 2440mm) × (300mm to 2440mm), the second glass substrate has a thickness of 2.7mm to 8mm, and the second glass substrate has a cross-sectional size of (300mm to 2440mm) × (300mm to 2440 mm).

6. A thickened laminated glass according to any one of claims 1 to 5, characterised in that: the adhesive linkage includes first film, second film, third film, fourth film and fifth film, just first film the second film the third film the fourth film with the thickness of fifth film is 0.76 mm.

7. A thickened laminated glass according to any one of claims 1 to 5, characterised in that: the first glass substrate and the second glass substrate are both float white glass substrates.

8. A thickened laminated glass according to any one of claims 1 to 5, characterised in that: the first glass substrate and the second glass substrate are both float super white glass substrates.