WO2014126251A1 - Verre feuilleté et structure comprenant du verre feuilleté - Google Patents

Verre feuilleté et structure comprenant du verre feuilleté Download PDF

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Publication number
WO2014126251A1
WO2014126251A1 PCT/JP2014/053698 JP2014053698W WO2014126251A1 WO 2014126251 A1 WO2014126251 A1 WO 2014126251A1 JP 2014053698 W JP2014053698 W JP 2014053698W WO 2014126251 A1 WO2014126251 A1 WO 2014126251A1
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Prior art keywords
glass
glass plate
thickness
laminated glass
core layer
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PCT/JP2014/053698
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English (en)
Japanese (ja)
Inventor
神吉　哲
貴弘 浅井
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日本板硝子株式会社
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Application filed by 日本板硝子株式会社 filed Critical 日本板硝子株式会社
Priority to CN201480000757.9A priority Critical patent/CN104136391A/zh
Priority to JP2014534695A priority patent/JP5647380B1/ja
Publication of WO2014126251A1 publication Critical patent/WO2014126251A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating

Definitions

  • the present invention relates to a laminated glass used for a windshield of an automobile and a mounting structure to which the glass is mounted.
  • Patent Document 1 describes a laminated glass for automobiles that maintains the sound insulation performance at a predetermined frequency while reducing the surface density. This laminated glass has a resin intermediate film disposed between a pair of glass plates.
  • the figure is a graph showing the result of simulating the relationship between frequency and sound transmission loss (STL).
  • This graph is composed of laminated glass (hereinafter referred to as first laminated glass) composed of two glass plates having a thickness of 1.5 mm and different glass plates having thicknesses of 2.0 mm and 1.0 mm.
  • laminated glass hereinafter referred to as first laminated glass
  • second laminated glass Laminated glass
  • a resin intermediate film is disposed between two glass plates.
  • the sound transmission loss of the second laminated glass is lower than that of the first laminated glass in the frequency range of 3000 to 5000 Hz. That is, it was found that the use of glass plates having different thicknesses reduces the sound insulation performance in the frequency range of 2000 to 5000 Hz that is easy for humans to hear.
  • the present invention has been made to solve the above problems, and provides a laminated glass composed of glass plates having different thicknesses, which achieves both weight reduction and sound insulation, and a mounting structure to which the laminated glass is attached. With the goal.
  • the laminated glass according to the present invention includes an outer glass plate, an inner glass plate disposed opposite to the outer glass plate and having a smaller thickness than the outer glass plate, and an intermediate film sandwiched between the outer glass plate and the inner glass plate.
  • the inner glass plate has a thickness of 0.6 to 1.8 mm
  • the intermediate film is composed of a plurality of layers including at least a core layer, and the Young's modulus of the core layer is 100 Hz. , At 20 ° C., 1 to 20 MPa, which is lower than the Young's modulus of the other layers.
  • the inner glass plate can have a thickness of 0.8 to 1.6 mm.
  • the inner glass plate can have a thickness of 1.0 to 1.4 mm.
  • the inner glass plate can have a thickness of 0.8 to 1.3 mm.
  • the thickness of the core layer can be 0.1 to 2.0 mm.
  • the thickness of the outer glass plate can be 1.8 to 5.0 mm.
  • the Young's modulus of the core layer can be 1 to 16 MPa at a frequency of 100 Hz and a temperature of 20 ° C.
  • the tan ⁇ of the interlayer film can be set to 0.5 to 3.0 at a frequency of 100 Hz and a temperature of 20 ° C.
  • the laminated glass attachment structure according to the present invention includes any one of the laminated glasses described above and an attachment portion for attaching the laminated glass to a vertical attachment angle of 45 degrees or less.
  • an attachment structure is, for example, an automobile or a building, and the attachment portion is a frame or the like for attaching laminated glass.
  • a laminated glass can be attached with a well-known method with respect to an attaching part.
  • the present invention it is possible to provide a laminated glass made of glass having different thicknesses, which achieves both weight reduction and sound insulation, and a mounting structure on which the glass is mounted.
  • FIG. 1 It is sectional drawing which shows one Embodiment of the laminated glass which concerns on this invention. It is the front view (a) and sectional view (b) which show the amount of doubles of a curved laminated glass. It is a graph which shows the relationship between the general frequency and sound transmission loss of a curved glass plate and a planar glass plate. It is a schematic plan view which shows the measurement position of the thickness of a laminated glass. It is an example of the image used for the measurement of a core layer. It is the schematic which shows the attachment method of a laminated glass. It is a graph which shows the relationship between the frequency when changing the thickness of a single plate glass, and sound transmission loss. It is a graph which shows the result of evaluation of an outside glass board.
  • FIG. 1 is a cross-sectional view of a laminated glass according to the present embodiment.
  • the laminated glass according to this embodiment includes an outer glass plate 1, an inner glass plate 2, and an intermediate film 3 sandwiched between these glasses.
  • the outer glass 1 is a glass plate disposed on the side susceptible to disturbance
  • the inner glass 2 is a glass plate disposed on the opposite side. Therefore, for example, when this laminated glass is used as a window glass of an automobile, the glass plate on the outside of the vehicle becomes an outer glass plate, and when used as a building material, the side facing outward becomes an outer glass plate. However, depending on the disturbance that can be received, the arrangement may be opposite.
  • each member will be described.
  • known glass plates can be used, and they can be formed of heat ray absorbing glass, general clear glass, green glass, or UV green glass.
  • this laminated glass is used for a window glass of an automobile, it is necessary to realize visible light transmittance in accordance with the safety standard of the country where the automobile is used.
  • the required solar radiation absorption rate can be secured by the outer glass plate 1, and the visible light transmittance can be adjusted by the inner glass plate 2 so as to satisfy the safety standard.
  • a composition of clear glass and an example of a heat ray absorption glass composition are shown.
  • the composition of the heat-absorbing glass for example, based on the composition of the clear glass, the proportion of the total iron oxide in terms of Fe 2 O 3 (T-Fe 2 O 3) and 0.4 to 1.3 wt%, CeO
  • the ratio of 2 is 0 to 2% by mass
  • the ratio of TiO 2 is 0 to 0.5% by mass
  • the glass skeleton components (mainly SiO 2 and Al 2 O 3 ) are T-Fe 2 O 3 , CeO.
  • the composition can be reduced by an increase of 2 and TiO 2 .
  • the outer glass plate 1 mainly needs durability and impact resistance against external obstacles.
  • the outer glass plate 1 has impact resistance performance against flying objects such as pebbles. is necessary.
  • the thickness of the outer glass plate 1 is preferably 1.8 mm or more, 1.9 mm or more, 2.0 mm or more, 2.1 mm or more, or 2.2 mm or more.
  • the upper limit of the thickness of the outer glass is preferably 5.0 mm or less, 4.0 mm or less, 3.1 mm or less, 2.5 mm or less, 2.4 mm or less. Among them, it is preferably larger than 2.1 mm and 2.5 mm or less, particularly preferably 2.2 mm or more and 2.4 mm or less.
  • the inner glass plate 2 needs to be thinner than the outer glass plate 1 in order to reduce the weight of the laminated glass. Specifically, as will be described later, it is preferably in the range of 1.2 mm ⁇ 0.6 mm, which is easily affected by the frequency range of 2000 to 5000 Hz that is easy for humans to hear. Specifically, the thickness of the inner glass plate 2 is preferably 0.6 mm or more, 0.8 mm or more, 1.0 mm or more, and 1.3 mm or more. On the other hand, the upper limit of the thickness of the inner glass plate 2 is preferable in the order of 1.8 mm or less, 1.6 mm or less, 1.4 mm or less, 1.3 mm or less, and less than 1.1 mm. Among these, for example, 0.6 mm or more and less than 1.1 mm is preferable.
  • the shape of the outer glass plate 1 and the inner glass plate 2 according to the present embodiment may be either a planar shape or a curved shape.
  • the curved shape of the STL since the curved shape of the STL is lowered, the curved glass particularly requires an acoustic measure. The reason why the STL value is lower in the curved shape than in the planar shape is that the curved shape is more influenced by the resonance mode.
  • the double amount is an amount indicating the bending of the glass plate. For example, when a straight line L connecting the center of the upper side and the center of the lower side is set as shown in FIG. The largest distance between and is defined as the amount of double.
  • FIG. 3 is a graph showing a result of simulating a general frequency and STL relationship between a curved glass plate and a planar glass plate.
  • the curved glass plate has no significant difference in STL in the range of the doubly amount of 30 to 38 mm, but the STL decreases in a frequency range of 4000 Hz or less compared to the planar glass plate.
  • the amount of double is better, but for example, when the amount of double exceeds 30 mm, the Young's modulus of the core layer of the intermediate film is 20 MPa (frequency) as will be described later. 100 Hz, temperature 20 ° C.) or less.
  • a method for measuring the thickness when the glass plate is curved will be described.
  • the measuring instrument is not particularly limited, and for example, a thickness gauge such as SM-112 manufactured by Teclock Co., Ltd. can be used.
  • SM-112 manufactured by Teclock Co., Ltd.
  • Teclock Co., Ltd. Teclock Co., Ltd.
  • it is arranged so that the curved surface of the glass plate is placed on a flat surface, and the end of the glass plate is sandwiched by the thickness gauge and measured. Even when the glass plate is flat, it can be measured in the same manner as when the glass plate is curved.
  • the intermediate film 3 is formed of a plurality of layers, and as an example, as shown in FIG. 1, a soft core layer 31 can be configured by three layers sandwiched by a harder outer layer 32. . However, it is not limited to this configuration, and it may be formed of a plurality of layers having the soft core layer 31. For example, two layers including the core layer 31 (one core layer and one outer layer), or an odd number of five or more layers arranged around the core layer 31 (one core layer and one outer layer) 4 layers), or an even number of layers including the core layer 31 inside (the core layer is one layer and the other layers are outer layers).
  • the core layer 31 is softer than the outer layer 32, but in this respect, the material can be selected based on the Young's modulus. Specifically, it is preferably 1 to 20 MPa, more preferably 1 to 16 MPa at a frequency of 100 Hz and a temperature of 20 degrees. Further, it is preferably 1 to 10 MPa.
  • a measuring method for example, frequency dispersion measurement can be performed with a strain amount of 0.05% using a solid viscoelasticity measuring device DMA-50 manufactured by Metravib.
  • the Young's modulus is a value measured by the above method. However, the measurement when the frequency is 200 Hz or less uses an actual measurement value. When the frequency is higher than 200 Hz, a calculation value based on the actual measurement value is used. The calculated value is based on a master curve calculated by using the WLF method from the actually measured value.
  • the Young's modulus of the outer layer 32 is not particularly limited as long as it is larger than the core layer. For example, it is preferable in the order of 560 MPa or more, 650 MPa or more, 1300 MPa or more, 1764 MPa or more at a frequency of 100 Hz and a temperature of 20 degrees.
  • the upper limit of the Young's modulus of the outer layer 32 is not particularly limited, but can be set from the viewpoint of workability, for example. For example, it is empirically known that when it becomes 1750 MPa or more, workability, particularly cutting becomes difficult.
  • the tan ⁇ of the core layer 31 of the intermediate film 3 is preferably 0.5 to 3.0, more preferably 0.7 to 2.0, and more preferably 1.0 to 1.0 at a frequency of 100 Hz and a temperature of 20 degrees. A ratio of 1.5 is particularly preferred.
  • tan ⁇ is in the above range, sound is easily absorbed, and sound insulation performance is improved. However, if it exceeds 3.0, the intermediate film 3 becomes too soft and difficult to handle, which is not preferable. On the other hand, if it is less than 0.5, the impact resistance is lowered, which is not preferable.
  • tan ⁇ of the outer layer may be a value smaller than that of the core layer 31, and can be determined between 0.1 and 3.0 at a frequency of 100 Hz and a temperature of 20 degrees, for example.
  • the material constituting each of the layers 31 and 32 is not particularly limited, but it is necessary that the material has at least a Young's modulus in the above range.
  • the outer layer 32 can be comprised by polyvinyl butyral resin (PVB). Polyvinyl butyral resin is preferable because it is excellent in adhesiveness and penetration resistance with each glass plate.
  • the core layer 31 can be made of an ethylene vinyl acetate resin (EVA) or a polyvinyl acetal resin softer than the polyvinyl butyral resin constituting the outer layer. By sandwiching the soft core layer between them, the sound insulation performance can be greatly improved while maintaining the same adhesion and penetration resistance as the single-layer resin intermediate film.
  • the hardness of the polyvinyl acetal resin is controlled by (a) the degree of polymerization of the starting polyvinyl alcohol, (b) the degree of acetalization, (c) the type of plasticizer, (d) the addition ratio of the plasticizer, etc. Can do. Therefore, by appropriately adjusting at least one selected from these conditions, even with the same polyvinyl butyral resin, a hard polyvinyl butyral resin used for the outer layer and a soft polyvinyl butyral resin used for the core layer It can be made separately.
  • the hardness of the polyvinyl acetal resin can also be controlled by the type of aldehyde used for acetalization, coacetalization with a plurality of aldehydes or pure acetalization with a single aldehyde. Although it cannot generally be said, the polyvinyl acetal resin obtained by using an aldehyde having a large number of carbon atoms tends to be softer.
  • the core layer has an aldehyde having 5 or more carbon atoms (for example, n-hexylaldehyde, 2-ethylbutyraldehyde, n-heptylaldehyde, n- Octyl aldehyde) can be used as a polyvinyl acetal resin obtained by acetalization with polyvinyl alcohol.
  • a predetermined Young's modulus it is not limited to the said resin.
  • the total thickness of the intermediate film 3 is not particularly limited, but is preferably 0.3 to 6.0 mm, more preferably 0.5 to 4.0 mm, and 0.6 to 2.0 mm. It is particularly preferred.
  • the thickness of the core layer 31 is preferably 0.1 to 2.0 mm, and more preferably 0.1 to 0.6 mm. This is because if the thickness is smaller than 0.1 mm, the influence of the soft core layer 31 is difficult to reach, and if the thickness is larger than 2.0 mm or 0.6 mm, the total thickness increases and the cost is increased.
  • the thickness of the outer layer 32 is not particularly limited, but is preferably 0.1 to 2.0 mm, and more preferably 0.1 to 1.0 mm. In addition, the total thickness of the intermediate film 3 can be made constant, and the thickness of the core layer 31 can be adjusted therein.
  • the thickness of the core layer 31 can be measured as follows, for example. First, the cross section of the laminated glass is enlarged and displayed by 175 times using a microscope (for example, VH-5500 manufactured by Keyence Corporation). And the thickness of the core layer 31 is specified visually, and this is measured. At this time, in order to eliminate visual variation, the number of measurements is set to 5 times, and the average value is set as the thickness of the core layer 31. For example, an enlarged photograph of a laminated glass as shown in FIG. 5 is taken, and the core layer is specified in this and the thickness is measured.
  • a microscope for example, VH-5500 manufactured by Keyence Corporation
  • the thickness of the intermediate film 3 does not have to be constant over the entire surface, and may be a wedge shape for laminated glass used for a head-up display, for example.
  • the thickness of the intermediate film 3 is measured at a portion having the smallest thickness, that is, the lowermost side portion of the laminated glass.
  • the outer glass plate 1 and the inner glass plate 2 are not arranged in parallel.
  • Such an arrangement is also included in the “opposing arrangement” between the outer glass plate and the inner glass plate in the present invention.
  • the “opposing arrangement” of the present invention includes an arrangement of the outer glass plate 1 and the inner glass plate 2 when the intermediate film 3 whose thickness is increased at a change rate of 3 mm or less per 1 m, for example.
  • the manufacturing method of the intermediate film 3 is not particularly limited, for example, after blending resin components such as the above-mentioned polyvinyl acetal resin, a plasticizer, and other additives as necessary, and uniformly kneading, each layer is collectively And a method of laminating two or more resin films prepared by this method by a pressing method, a laminating method or the like.
  • the resin film before lamination used in a method of laminating by a press method, a laminating method or the like may have a single layer structure or a multilayer structure.
  • the manufacturing method of the laminated glass which concerns on this embodiment is not specifically limited, The manufacturing method of a conventionally well-known laminated glass can be employ
  • the intermediate film 3 is sandwiched between the outer glass plate 1 and the inner glass plate 2, placed in a rubber bag, and pre-bonded at about 70 to 110 ° C. while sucking under reduced pressure.
  • Other methods can be used for the preliminary adhesion.
  • the intermediate film 3 is sandwiched between the outer glass plate 1 and the inner glass plate 2 and heated at 45 to 65 ° C. in an oven. Subsequently, this laminated glass is pressed by a roll at 0.45 to 0.55 MPa.
  • the laminated glass is again heated at 80 to 105 ° C. in an oven and then pressed again with a roll at 0.45 to 0.55 MPa.
  • preliminary adhesion is completed.
  • the pre-bonded laminated glass is subjected to main bonding by an autoclave at 8 to 15 atm and 100 to 150 ° C. Specifically, the main bonding can be performed under the conditions of 14 atm and 145 ° C. Thus, the laminated glass according to the present embodiment is manufactured.
  • Laminated glass mounting structure The laminated glass mentioned above can be attached to attachment structures, such as a car and a building, for example. At this time, the laminated glass is attached to the attachment structure via the attachment portion.
  • the attachment portion corresponds to, for example, a frame such as a urethane frame for attachment to an automobile, an adhesive, a clamp, or the like.
  • pins 50 are attached to both ends of the laminated glass 10, and the adhesive 60 is applied to the automobile frame 70 to be attached. .
  • a through hole 80 into which a pin is inserted is formed in the frame. And the laminated glass 10 is attached to the flame
  • the pin 50 is inserted into the through hole 80 and the laminated glass 10 is temporarily fixed to the frame 70. At this time, since a step is formed in the pin 50, the pin 50 is inserted only halfway through the through-hole 80, whereby a gap is generated between the frame 70 and the laminated glass 10. And since the adhesive material 60 mentioned above is apply
  • the attachment angle of the laminated glass 10 is preferably 45 degrees or less from the vertical N as shown in FIG.
  • the following effects can be obtained by setting the Young's modulus of the core layer 31 constituting a part of the intermediate film 3 to a small value of 1 to 20 MPa at a frequency of 100 Hz and a temperature of 20 degrees. .
  • the Young's modulus of the intermediate film is large, even a laminated glass has a strong property as a single plate.
  • the coincidence frequency generally shifts to a higher frequency side as the thickness and Young's modulus of glass become smaller.
  • the Young's modulus of the intermediate film 3 when the Young's modulus of the intermediate film 3 is large, even if the total thickness is 4 mm, the coincidence frequency is 3 to 4 kHz as in the case of a single plate having a thickness of 4 mm. The performance drops in a frequency band that is easy to hear.
  • the Young's modulus decreases, the performance of the laminated glass is the sum of the two glass plates. For example, if it is a laminated glass consisting of a 2 mm glass plate and a 1 mm glass plate, its performance tends to be the sum of the performances of the two glass plates. That is, since the thickness of each glass plate shown in FIG.
  • FIG. 7 is smaller than 4 mm, the coincidence frequency shifts to the high frequency side, and the 2 mm glass plate has a coincidence frequency around 5000 Hz, and the 1 mm glass plate has a coincidence at 8000 Hz. There is a frequency. And since the performance of the laminated glass of these 1 mm and 2 mm thick glass plates is the sum of them, the coincidence frequency exists between 5000 and 8000 Hz.
  • FIG. 7 is a graph which shows the result of having simulated the relationship between the frequency and STL of the single plate which is not a laminated glass.
  • the Young's modulus of the core layer 31 constituting a part of the intermediate film 3 is 1 to 20 MPa at a frequency of 100 Hz and a temperature of 20 degrees.
  • the total is added to the glass plate 2.
  • the coincidence frequency is shifted to the high frequency side by reducing the thickness of the inner glass plate 2. Therefore, as described above, it is possible to increase the sound transmission loss that is reduced in the frequency region of 2000 to 5000 Hz due to the thinning of the inner glass plate 2.
  • the present inventor has found that when the Young's modulus of the outer layer 32 of the intermediate film 3 is improved, the sound insulation performance in a frequency range of about 4000 Hz or more is improved.
  • the outer layer 32 having a Young's modulus of 560 MPa (20 ° C., 100 Hz) is used for the outer layer having a Young's modulus of 441 MPa (20 ° C., 100 Hz)
  • the STL is 0.3 dB at a frequency of 6300 Hz. I found it to improve.
  • a human since it is assumed that a human can recognize a change in sound of 0.3 dB or more, by increasing the Young's modulus, a sound insulation effect that can be recognized by a human can be obtained in a high frequency range.
  • each laminated glass includes an outer glass plate, an inner glass plate, and an intermediate film sandwiched between them.
  • the thicknesses of the core layer and the outer layer were 0.1 mm and 0.33 mm, respectively, and the Young's modulus was 10 MPa and 441 MPa (20 ° C., 100 Hz), respectively.
  • the above laminated glasses were arranged at an angle of 60 degrees from the vertical, and granite having an average particle diameter of about 5 to 20 mm was collided with each laminated glass at a speed of 64 km / h. Thirty granites collided with each laminated glass, and the occurrence rate of cracks was calculated. The result is as shown in FIG. As shown in the figure, in the laminated glasses 1 to 4 having an outer glass plate thickness of 2.0 mm, the occurrence rate of cracks was 5% or less regardless of the thickness of the inner glass plate. On the other hand, in the laminated glasses 5 and 6 in which the thickness of the outer glass plate was 1.8 mm or less, the occurrence rate of cracks was 8% regardless of the thickness of the inner glass. Therefore, from the viewpoint of impact resistance against flying objects, the thickness of the outer glass plate is preferably 1.8 mm or more as described above. More preferably, it is 2.0 mm or more.
  • Each glass plate was formed of the above-described clear glass.
  • the intermediate film was comprised with the core layer and a pair of outer layer which clamps this.
  • the thickness of the intermediate film was 0.76 mm
  • the thickness of the core layer was 0.1 mm
  • the thicknesses of both outer layers were 0.33 mm.
  • the Young's modulus of both outer layers was adjusted to 441 MPa (20 ° C., 100 Hz).
  • the sound transmission loss was evaluated by simulation for the above examples and comparative examples.
  • the simulation conditions are as follows.
  • the simulation was performed using acoustic analysis software (ACTRAN, manufactured by Free Field technology).
  • ACTRAN acoustic analysis software
  • the sound transmission loss (transmitted sound pressure level / incident sound pressure level) of the laminated glass can be calculated by solving the following wave equation using the finite element method.
  • Model setting Figure 9 shows the model of laminated glass used in this simulation.
  • a laminated glass is defined in which an outer glass plate, an intermediate film, an inner glass plate, and a urethane frame are laminated in this order from the sound source side.
  • the reason why the urethane frame is added to the model is that there is a considerable influence on the calculation result of sound transmission loss due to the presence or absence of the urethane frame, and between the laminated glass and the vehicle windshield. This is because it is generally considered that a urethane frame is used and bonded.
  • Input condition 1 (dimensions, etc.)
  • the size of the glass plate 800 ⁇ 500 mm
  • the STL value tends to worsen because the larger the size, the larger the constrained portion and the greater the resonance mode.
  • the tendency of the relative value for each frequency that is, the laminated glass made of glass plates with different thicknesses becomes worse in a predetermined frequency band than the laminated glass made of glass plates with the same thickness. The trend is the same.
  • the random diffuse sound wave in Table 3 is a sound wave having a sound wave of a predetermined frequency transmitted with an incident angle in any direction with respect to the outer glass plate, and a sound source in a reverberation chamber for measuring sound transmission loss.
  • the above simulation method is the same in the following items 3, 4, and 5.
  • the STL value due to the different thickness can be suppressed by setting the Young's modulus of the core layer to 20 MPa (20 ° C., 100 Hz) or less as in Examples 1 to 4. Further, as in Examples 2 to 4, by setting the Young's modulus of the core layer to 16 MPa (20 ° C., 100 Hz) or less, compared with Comparative Example 1 in which both glasses have the same thickness, in a frequency region of 2000 to 5000 Hz. Sound transmission loss is high.
  • the laminated glass which concerns on an Example and a comparative example was prepared as follows. Here, the thickness of the core layer was changed and the sound transmission loss was calculated by the simulation method.
  • the intermediate film was composed of three layers, and the thickness of the core layer and the outer layer was changed without changing the total thickness.
  • the Young's modulus of the core layer was 10 MPa (20 ° C., 100 Hz), and the Young's modulus of the outer layer was 441 Mpa (20 ° C., 100 Hz).
  • the thicknesses of the outer glass plate and the inner glass plate were 2.0 mm and 1.0 mm, respectively.
  • the sound transmission loss was evaluated by simulation for the above examples and comparative examples. The results are as shown in FIG. According to the figure, it can be seen that when the thickness of the core layer is smaller than 0.1 mm, the sound transmission loss is reduced in the frequency range of 2000 to 5000 Hz. Therefore, in order to increase the sound insulation performance in the frequency range of 2000 to 5000 Hz that is easy for humans to hear, the thickness of the core layer is preferably set to 0.1 mm or more.
  • the mounting angle of laminated glass was evaluated by a simulation in which the incident angle of sound was changed.
  • the sound transmission loss was calculated by changing the angle from the vertical to 0 to 75 degrees.
  • Each glass plate was formed of the above-described clear glass.
  • the intermediate film was comprised with the core layer and a pair of outer layer which clamps this. The thickness of the intermediate film was 0.76 mm, the thickness of the core layer was 0.1 mm, and the thicknesses of both outer layers were 0.33 mm.
  • the Young's modulus of the core layer was 10 MPa (20 ° C., 100 Hz), and the Young's modulus of both outer layers was 441 MPa (20 ° C., 100 Hz). Moreover, the thickness of the glass plate was 2.0 mm and 1.0 mm.
  • Example 13 and 14 are shown in FIG.
  • the Young's modulus of the core layer In the evaluation of the Young's modulus of the core layer described above, it was found that when the Young's modulus is 20 MPa or less, the sound transmission loss is increased in a frequency range of 2000 to 5000 Hz that is easy for humans to hear.
  • the Young's modulus of the outer layer was changed while keeping the Young's modulus of the core layer constant. As a result, as shown in FIG. 13, in Example 14 where the Young's modulus of the outer layer was high, it was found that the sound transmission loss was high in a high frequency region of 5000 Hz or higher.
  • the Young's modulus of the core layer is further lowered and the Young's modulus of the outer layer is increased.
  • the sound transmission loss in the frequency region of 2000 to 5000 Hz is higher than those in Examples 13 and 14, but in Examples 13 and 14, the frequency is higher than 5000 Hz.
  • the sound transmission loss in the frequency domain is not high.
  • the Young's modulus of the outer layer exceeds 1764 MPa, the sound transmission loss in a high frequency region of 5000 Hz or higher hardly increases.

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  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

[Problème] Créer un verre feuilleté qui peut améliorer des propriétés d'isolation phonique, fournir un facteur de transmission dans l'infrarouge à un niveau prescrit, et qui est formé de feuilles de verre ayant différentes épaisseurs. [Solution] Ce verre feuilleté comprend une feuille de verre extérieure, une feuille de verre intérieure qui est agencée face à la feuille de verre extérieure et qui est plus mince que la feuille de verre extérieure, et un film intermédiaire qui est pris en sandwich entre la feuille de verre extérieure et la feuille de verre intérieure. Le facteur de transmission du verre feuilleté pour une lumière ayant une longueur d'onde de 870-940nm est de 30 à 80 % L'épaisseur de la feuille de verre extérieure est de 1,8 à 2,3 mm L'épaisseur de la feuille de verre intérieure est de 0,6 à 2,0 mm Le film intermédiaire est formé d'une pluralité de couches comprenant au moins une couche centrale, et le module de Young de la couche centrale à une fréquence de 100 Hz et à une température de 20°C est de 1 à 20 MPa, étant ainsi inférieur au module de Young des autres couches.
PCT/JP2014/053698 2013-02-18 2014-02-18 Verre feuilleté et structure comprenant du verre feuilleté WO2014126251A1 (fr)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015041324A1 (fr) * 2013-09-19 2015-03-26 日本板硝子株式会社 Verre feuilleté
WO2016024625A1 (fr) * 2014-08-15 2016-02-18 日本板硝子株式会社 Verre feuilleté
JP2016108222A (ja) * 2014-11-10 2016-06-20 株式会社クラレ 合わせガラス用中間膜および合わせガラス
JP2018002592A (ja) * 2013-02-18 2018-01-11 日本板硝子株式会社 合わせガラスの取付構造体
JP2018505831A (ja) * 2014-12-08 2018-03-01 サン−ゴバン グラス フランスＳａｉｎｔ−Ｇｏｂａｉｎ Ｇｌａｓｓ Ｆｒａｎｃｅ ヘッドアップディスプレイ（ｈｕｄ）用の、小さな厚さを有する合わせガラス
JPWO2017094884A1 (ja) * 2015-12-04 2018-10-11 Ａｇｃ株式会社 自動車用合わせガラス
JP2019511987A (ja) * 2016-03-17 2019-05-09 サン−ゴバン グラス フランス ヘッドアップディスプレイのための導電性コーティングを有している複合ペイン
US10450215B2 (en) 2017-02-20 2019-10-22 Corning Incorporated Shaped glass laminates and methods for forming the same
US10525677B2 (en) 2014-09-12 2020-01-07 Sekisui Chemical Co., Ltd. Interlayer for laminated glass, and laminated glass
US11236003B2 (en) 2017-10-18 2022-02-01 Corning Incorporated Methods for controlling separation between glasses during co-sagging to reduce final shape mismatch therebetween

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6193777B2 (ja) * 2014-02-14 2017-09-06 日本板硝子株式会社 合わせガラス、及びこれが取り付けられた取付構造体
JP6178738B2 (ja) * 2014-02-27 2017-08-09 日本板硝子株式会社 合わせガラス、及びこれが取り付けられた取付構造体
US10252492B2 (en) 2014-02-14 2019-04-09 Nippon Sheet Glass Company, Limited Laminated glass
US10343379B2 (en) 2016-03-04 2019-07-09 Solutia Inc. Polymeric interlayers and multiple layer panels made therefrom exhibiting enhanced properties and performance
US10525675B2 (en) 2016-03-04 2020-01-07 Solutia Inc. Polymeric interlayers and multiple layer panels made therefrom exhibiting enhanced properties and performance
WO2017204121A1 (fr) * 2016-05-25 2017-11-30 旭硝子株式会社 Verre feuilleté
FR3054169B1 (fr) * 2016-07-22 2018-08-17 Saint Gobain Intercalaire plastique viscoelastique pour un amortissement vibro-acoustique et vitrage comprenant un tel intercalaire
US9812111B1 (en) * 2016-10-19 2017-11-07 Solutia Inc. Sound insulation panels having high interlayer thickness factors
WO2019069628A1 (fr) * 2017-10-06 2019-04-11 セントラル硝子株式会社 Verre feuilleté destiné à une automobile et procédé destiné à sa fabrication
WO2023127677A1 (fr) * 2021-12-28 2023-07-06 Ａｇｃ株式会社 Verre feuilleté et procédé de fabrication d'un verre feuilleté

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09165235A (ja) * 1995-09-15 1997-06-24 Saint Gobain Vitrage 防音性ラミネートガラスペイン
JPH1086659A (ja) * 1996-08-13 1998-04-07 Saint Gobain Vitrage 側面衝撃を受けた場合の車両の搭乗者の保護用装置
JP2002326847A (ja) * 2001-03-01 2002-11-12 Asahi Glass Co Ltd 合わせガラス
JP2004175593A (ja) * 2002-11-25 2004-06-24 Central Glass Co Ltd 合わせガラス
WO2012176813A1 (fr) * 2011-06-20 2012-12-27 旭硝子株式会社 Procédé de fabrication de verre feuilleté et verre feuilleté

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0529870Y2 (fr) * 1987-07-13 1993-07-30
EP0844075B2 (fr) * 1996-11-26 2016-05-25 Saint-Gobain Glass France Utilisation d'un vitrage feuilleté pour l'amortissement des vibrations d'origine solidienne dans un véhicule
JPH10338556A (ja) * 1997-06-09 1998-12-22 Sekisui Chem Co Ltd 異種合わせガラス
DE69932594T2 (de) * 1998-11-30 2007-08-02 Asahi Glass Co., Ltd. Entspiegelungsfilm für fenster einer transportvorrichtung, glas mit entspiegelungsfilm, laminiertes glas und herstellungsverfahren
JP4371462B2 (ja) * 1999-03-25 2009-11-25 積水化学工業株式会社 合わせガラス用中間膜及び合わせガラス
BR0013831A (pt) * 1999-08-26 2002-04-23 Glaverbel Método para manufaturar um painel de vidro automotivo laminado curvo, painel de vidro automotivo laminado curvo e uso de uma camada de revestimento dupla de prata depositada por sublimação catódica
JP3851633B2 (ja) * 2001-03-15 2006-11-29 三井化学株式会社 積層体およびそれを用いた表示装置
JP2004075501A (ja) * 2002-08-22 2004-03-11 Asahi Glass Co Ltd 湾曲合わせガラス
JP4339745B2 (ja) * 2003-08-22 2009-10-07 積水化学工業株式会社 合わせガラス及び合わせガラス用中間膜
JP2007070200A (ja) * 2005-09-09 2007-03-22 Asahi Glass Co Ltd 合わせガラス
US8101267B2 (en) * 2005-12-30 2012-01-24 E. I. Du Pont De Nemours And Company Multilayer polymeric laminates and high strength laminates produced therefrom
JP2007197288A (ja) * 2006-01-30 2007-08-09 Nippon Sheet Glass Co Ltd 合わせガラス及びこれを用いたガラス窓構造
JP5258542B2 (ja) * 2008-12-24 2013-08-07 積水化学工業株式会社 合わせガラス用中間膜及び合わせガラス
FR2944521B1 (fr) * 2009-04-20 2012-08-24 Saint Gobain Procede de dimensionnement d'un vitrage feuillete et vitrage feuillete
JP2011088782A (ja) * 2009-10-22 2011-05-06 Sekisui Chem Co Ltd 合わせガラス用中間膜及び合わせガラス
WO2011081190A1 (fr) * 2009-12-28 2011-07-07 積水化学工業株式会社 Couche intermédiaire pour verre feuilleté, et verre feuilleté
GB201020311D0 (en) * 2010-12-01 2011-01-12 Pilkington Group Ltd Laminated glazing
JP5929903B2 (ja) * 2011-04-01 2016-06-08 旭硝子株式会社 合わせガラス、およびその製造方法
WO2013181484A1 (fr) * 2012-05-31 2013-12-05 Corning Incorporated Couches intermédiaires rigides pour structures de verre feuilleté
JP5647380B1 (ja) * 2013-02-18 2014-12-24 日本板硝子株式会社 合わせガラス、及びこれが取り付けられた取付構造体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09165235A (ja) * 1995-09-15 1997-06-24 Saint Gobain Vitrage 防音性ラミネートガラスペイン
JPH1086659A (ja) * 1996-08-13 1998-04-07 Saint Gobain Vitrage 側面衝撃を受けた場合の車両の搭乗者の保護用装置
JP2002326847A (ja) * 2001-03-01 2002-11-12 Asahi Glass Co Ltd 合わせガラス
JP2004175593A (ja) * 2002-11-25 2004-06-24 Central Glass Co Ltd 合わせガラス
WO2012176813A1 (fr) * 2011-06-20 2012-12-27 旭硝子株式会社 Procédé de fabrication de verre feuilleté et verre feuilleté

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018002592A (ja) * 2013-02-18 2018-01-11 日本板硝子株式会社 合わせガラスの取付構造体
WO2015041324A1 (fr) * 2013-09-19 2015-03-26 日本板硝子株式会社 Verre feuilleté
WO2016024625A1 (fr) * 2014-08-15 2016-02-18 日本板硝子株式会社 Verre feuilleté
US10967612B2 (en) 2014-09-12 2021-04-06 Sekisui Chemical Co., Ltd. Interlayer for laminated glass, and laminated glass
US11407205B2 (en) 2014-09-12 2022-08-09 Sekisui Chemical Co., Ltd. Interlayer for laminated glass, and laminated glass
US11141958B2 (en) 2014-09-12 2021-10-12 Sekisui Chemical Co., Ltd. Interlayer for laminated glass, and laminated glass
US10525677B2 (en) 2014-09-12 2020-01-07 Sekisui Chemical Co., Ltd. Interlayer for laminated glass, and laminated glass
US11135811B2 (en) 2014-09-12 2021-10-05 Sekisui Chemical Co., Ltd. Interlayer for laminated glass, and laminated glass
US10967611B2 (en) 2014-09-12 2021-04-06 Sekisui Chemical Co., Ltd. Interlayer for laminated glass, and laminated glass
JP2016108222A (ja) * 2014-11-10 2016-06-20 株式会社クラレ 合わせガラス用中間膜および合わせガラス
JP2018505831A (ja) * 2014-12-08 2018-03-01 サン−ゴバン グラス フランスＳａｉｎｔ−Ｇｏｂａｉｎ Ｇｌａｓｓ Ｆｒａｎｃｅ ヘッドアップディスプレイ（ｈｕｄ）用の、小さな厚さを有する合わせガラス
JPWO2017094884A1 (ja) * 2015-12-04 2018-10-11 Ａｇｃ株式会社 自動車用合わせガラス
US10828872B2 (en) 2016-03-17 2020-11-10 Saint-Gobain Glass France Composite pane having electrically conductive coating for a head-up display
JP2019511987A (ja) * 2016-03-17 2019-05-09 サン−ゴバン グラス フランス ヘッドアップディスプレイのための導電性コーティングを有している複合ペイン
US10954154B2 (en) 2017-02-20 2021-03-23 Corning Incorporated Shaped glass laminates and methods for forming the same
US10773988B2 (en) 2017-02-20 2020-09-15 Corning Incorporated Shaped glass laminates
US10450215B2 (en) 2017-02-20 2019-10-22 Corning Incorporated Shaped glass laminates and methods for forming the same
US11465927B2 (en) 2017-02-20 2022-10-11 Corning Incorporated Shaped glass laminates
US11987516B2 (en) 2017-02-20 2024-05-21 Corning Incorporated Shaped glass laminates
US11236003B2 (en) 2017-10-18 2022-02-01 Corning Incorporated Methods for controlling separation between glasses during co-sagging to reduce final shape mismatch therebetween

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