KR20160124395A - Polycarbonate-glass laminated sheet and method for manufacturing of the same - Google Patents

Polycarbonate-glass laminated sheet and method for manufacturing of the same Download PDF

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Publication number
KR20160124395A
KR20160124395A KR1020150054865A KR20150054865A KR20160124395A KR 20160124395 A KR20160124395 A KR 20160124395A KR 1020150054865 A KR1020150054865 A KR 1020150054865A KR 20150054865 A KR20150054865 A KR 20150054865A KR 20160124395 A KR20160124395 A KR 20160124395A
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KR
South Korea
Prior art keywords
polycarbonate
glass
sheet
bonding
bonded
Prior art date
Application number
KR1020150054865A
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Korean (ko)
Inventor
신진문
신하동
황장원
유형호
최경운
박종영
Original Assignee
주식회사 태광뉴텍
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Priority to KR1020150054865A priority Critical patent/KR20160124395A/en
Publication of KR20160124395A publication Critical patent/KR20160124395A/en

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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
    • B32B17/1055—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
    • B32B17/10752—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 polycarbonate
    • 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
    • B32B17/1077—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 polyurethane
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass

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

Abstract

The present invention relates to a glass-polycarbonate-glass bonded sheet obtained by bonding a glass plate to both sides of a polycarbonate laminated sheet including a polycarbonate-based sheet, an ultraviolet shielding coextruded layer laminated on both sides of the polycarbonate-based sheet, A glass-polycarbonate-glass bonded sheet comprising a laminated sheet and a bonded substrate for bonding the glass plate.
As described above, the polycarbonate-glass bonded sheet according to the embodiment of the present invention does not include a hard coating layer, thereby providing a lightened bonded sheet while saving additional processing and costs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a polycarbonate-

The present invention relates to a bonded sheet obtained by bonding polycarbonate and glass.

Generally, glass is used in everyday life as a material in various fields such as architecture and industry. Particularly, a laminated glass has been used for a front glass of an automobile (see Fig. 1). As the laminated glass, a glass plate and a glass plate may be joined (in the case where all of the reference numerals 11 and 12 are glass in Fig. 1), or a glass plate and a resin film may be laminated on the reinforced glass Or 12 is only glass) is used.

In order to prevent natural glass disruption or destruction due to artificial reasons, the above-mentioned prior art glass laminated glass is bonded with two or more sheets of general glass or tempered glass to use a safety glass, or a film for preventing glass scattering or a film for delaying external penetration It is used by attaching. Conventional glass bonding methods are not economical because of the limitations of the mechanical and physical properties of the adhesive material and the low cost of resistance due to external impact due to the bonding between the glasses and the increase in the total thickness of the glass and the increase in weight, . This is because, due to the volume and the load due to the increase in the thickness of the glass, additional raw material costs are incurred in order to have a structure capable of withstanding the glass load when applied to buildings or automobiles, and further complicated designs are required. Rise and compound costs resulting in economic losses.

In order to compensate for this, a part of the glass is replaced by a polycarbonate sheet to improve the light weight and the impact strength. However, since the polycarbonate has a low surface hardness, have.

In this connection, Patent Document 1 discloses a laminated sheet made of glass or a synthetic resin, or a laminated sheet further comprising a laminated film thereon, and a laminated sheet using inorganic particles. However, this is different from the present invention.

Document 1: Published Patent Application No. 2010-0075344 (published on July 2, 2010)

In order to solve the above problems, the present invention provides a polycarbonate laminated sheet comprising a polycarbonate base sheet, an ultraviolet barrier coextruded layer laminated on both sides of the polycarbonate base sheet, A glass plate bonded to both sides of the polycarbonate laminated sheet; And a polycarbonate-glass bonded sheet comprising the polycarbonate-laminated sheet and a bonded substrate for bonding the glass plate, wherein a bonded sheet without hard coating is provided.

According to an aspect of the present invention, a polycarbonate-laminated sheet includes a polycarbonate-based sheet, and an ultraviolet shielding coextruded layer laminated on both sides of the polycarbonate-based sheet. A glass plate bonded to both sides of the polycarbonate laminated sheet; And a bonding substrate for bonding the polycarbonate-laminated sheet and the glass plate to each other, and a polycarbonate-glass bonded sheet including the bonded substrate.

The bonded substrate may be formed of at least one of polyvinyl butyral (PVB), ethyl vinyl acetate (EVA), polyolefin elastomer (POE), polyurethane (PU), and ethylene- Wherein the thickness of the polycarbonate laminated sheet, the glass plate, and the bonded substrate is 1 mm to 3 mm, 2 mm to 3 mm, and 0.4 mm to 3 mm, respectively, 2 mm.

As described above, the polycarbonate-glass bonded sheet according to the embodiment of the present invention has no polycarbonate surface and hard coating operation for raising the surface hardness is not necessary, so that there is no additional process and cost.

Further, the impact resistance can be improved by using the polycarbonate sheet as compared with the conventional glass-glass bonded sheet, and the effect of reducing the light transmittance without decreasing the light transmittance is achieved.

1 is a conceptual view schematically showing a conventional laminated glass.
2 is a schematic cross-sectional view of a polycarbonate-glass bonded sheet according to an embodiment of the present invention.
3 is a cross-sectional view schematically showing a laminated sheet bonded by glass-polycarbonate-glass according to an embodiment of the present invention.
4 is a cross-sectional view of a polycarbonate-glass bonded sheet according to an embodiment of the present invention.
Is a conceptual diagram schematically showing a manner of degassing in a vacuum method in the method.
FIG. 5 is a conceptual view schematically showing a method of manufacturing a polycarbonate-glass bonded sheet according to an embodiment of the present invention, in which a bonded film is inserted between sheets and then bonded by a press method or the like.
6 is a conceptual diagram schematically showing a method of injecting a liquid adhesive between sheets in a method of manufacturing a polycarbonate-glass bonded sheet according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the polycarbonate-glass bonded sheet according to the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as being limited to ordinary or dictionary terms, and the inventor should appropriately define the concept of the term to describe its invention in the best way The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

In particular, the present invention is characterized in that the glass plate 120 is bonded to both sides of the polycarbonate laminated sheet 110. With this structure, it is possible to manufacture a lightweight sheet that does not require hard coating even when a part of the glass is replaced with polycarbonate.

The glass plate 120 is not limited as long as it is a glass used conventionally in automobiles, soundproof walls, building outer walls, and the like. The thicknesses of the polycarbonate laminated sheet 110, the glass plate 120 and the bonded substrate 130 may be 1 mm to 3 mm, 2 mm to 3 mm, and 0.4 mm to 2 mm, respectively.

In particular, the present invention is characterized in that the glass plate 120 is bonded to both sides of the polycarbonate laminated sheet 110. With this structure, it is possible to manufacture a lightweight sheet that does not require hard coating even when a part of the glass is replaced with polycarbonate.

The glass plate 120 is not limited as long as it is conventionally used for automobiles, soundproof walls, building outer walls, and the like. The thicknesses of the polycarbonate laminated sheet 110, the glass plate 120 and the bonded substrate 130 may be 1 mm to 3 mm, 2 mm to 3 mm, and 0.4 mm to 2 mm, respectively.

3 is a cross-sectional view schematically showing a polycarbonate laminated sheet 110 of the polycarbonate-glass bonded sheet 100 of the present invention.

3, the polycarbonate laminated sheet 110 has a three-layer structure. At first, the ultraviolet barrier coating layers 114a and 114b are formed on one side or both sides of the central polycarbonate base sheet 112. 2 and 3 illustrate a three-layer structure of the polycarbonate laminated sheet 110. Alternatively, one layer of the ultraviolet barrier coating layers 114a and 114b may be omitted or the thickness of the layer may be changed to control the properties . The ultraviolet barrier coating layers 114a and 114b may be at least one kind of resin such as polycarbonate or polymethylmethacrylate. The ultraviolet barrier coating layers 114a and 114b are not limited as far as they are resins capable of co-extrusion or coating with polycarbonate as a resin having ultraviolet shielding properties. The thickness of the ultraviolet barrier coating layers 114a and 114b is preferably in the range of about 0.1% to 2% with respect to the polycarbonate base sheet 112. If the thickness of the ultraviolet barrier coating layers 114a and 114b is relatively increased, the light transmittance may deteriorate. On the other hand, when the thickness becomes thin, the effect of ultraviolet ray blocking can not be sufficiently obtained.

The method of forming the polycarbonate laminated sheet 110 will be described later in detail.

The bonding substrate 130 may be formed of a material such as polyvinyl butyral (PVB), ethyl vinyl acetate (EVA), polyolefin elastomer (POE), polyurethane (PU), or ethylene- A bonding film or a bonding liquid selected from a combination of two or more kinds of bonding films can be used. The polyvinyl butyral has embossing on its surface, so that it is easy to discharge air at the time of initial degassing after bonding. In addition, it is non-toxic, odorless, stretchable and flexible material with excellent inner pipe capacity and excellent soundproofing effect. The ethylvinyl acetate is a bonding film mainly used in a solar module and has good flowability, so it is easy to fill in a complicated shape structure. As the bonded substrate 130, a film or liquid resin may be used.

A method for producing a polycarbonate-glass bonded sheet by bonding a polycarbonate laminated sheet and a glass plate according to another embodiment of the present invention is a laminate obtained by laminating the polycarbonate laminated sheet and the glass plate with a bonding substrate interposed therebetween A first bonding step of de-airing; And a second bonding step of heating the laminate at a pressure of 10 to 15 bar and a temperature of 80 to 160 캜 for 10 to 50 minutes.

The above polycarbonate laminated sheet is a multilayer structure composed of a polycarbonate base sheet and an ultraviolet barrier coating layer as described above. Each layer is co-extruded or coated to form a multi-layer structure. In this case, conventional methods such as flow coating, spray coating and dip coating can be used as the coating method.

Before the first bonding step, the polycarbonate laminated sheet, the bonded substrate, and the glass plate are laminated in order to prepare a laminate. At this time, the bonded substrate may be used with a film-type adhesive attached thereto.

The first bonding step is a preliminary bonding step of performing a degassing process of removing the air filled in the bonding surfaces of the polycarbonate laminated sheet and the glass plate. A vacuum is formed by a pressurizing roller method in which the laminated body of the polycarbonate laminated sheet, the bonded substrate, and the glass plate laminated in this order are passed through a pressure roller and is degassed, or a vacuum blank or a vacuum ring is attached to each of the laminated bodies May be used to form a vacuum state. FIG. 4 is a conceptual view schematically showing a step of degassing in a method of manufacturing a polycarbonate-glass bonded sheet according to an embodiment of the present invention. Referring to FIG. 4, a vacuum ring (V) connected to a vacuum pump is attached to the rim of the laminate (10, polycarbonate-glass bonded sheet) to degas. The degassing may be performed at 20 캜 to 30 캜 for 20 minutes to 30 minutes. After the first bonding step is completed, the substrate is allowed to stand until it is cooled to room temperature.

The laminate subjected to the preliminary bonding by the degassing in the first bonding step is heated and pressed in the second bonding step to cure the bonding substrate to bond the glass plate and the polycarbonate laminated sheet. In the second bonding step, the laminate is heated at a temperature of 80 to 160 ° C for 10 minutes to 50 minutes under a pressure of 10 bar to 15 bar. At this time, the temperature is raised from room temperature to 80 to 160 ° C for 10 to 30 minutes, and then the mixture is heated and maintained for 10 minutes to 50 minutes. Thereafter, the pressure is removed to stop the heating and cool down.

A method of producing a polycarbonate-glass bonded sheet by bonding a polycarbonate-laminated sheet and a glass plate according to another embodiment of the present invention comprises the steps of: applying or injecting a bonding substrate between the polycarbonate-laminated sheet and the glass plate; And drying and irradiating the polycarbonate-laminated sheet coated with the bonding substrate or the glass plate with UV light for 10 seconds to 20 seconds at a light quantity of 1000 to 1500 mJ.

5 and 6 are conceptual diagrams schematically showing a method of using a liquid adhesive substrate 130 in a method of manufacturing a polycarbonate-glass bonded sheet 100 according to an embodiment of the present invention. When the liquid adhesive base material 130 is used, the liquid adhesive base material 130 is coated on the glass plate 120 or the polycarbonate laminated sheet 110 as shown in FIG. 5, Lt; / RTI > and dried in a UV dryer.

Further, after the glass plate 120 and the polycarbonate laminated sheet 120 are firstly adhered with a double-faced tape or the like, an adhesive liquid (adhesive material in liquid form) may be injected (I) and dried and adhered by a UV drier.

Examples of the surface hardness according to the arrangement and bonding method of the bonding sheet according to the present invention are shown in Table 1 below.

Comparative Example 1 Example 1 Example 2 Laminated structure PC / Glass Glass / PC / Glass Glass / PC / Glass PC Thickness 3 3 2 Glass thickness 3 2 2 Type of bonding agent PU PU PU Bonding thickness 0.6 0.6 0.6 Joining method A blank space A blank space Compression method Whether PC coextrusion layer O O O Whether PC hard coating O X X Surface pencil hardness (left / right) 2H / 8H 8H / 8H 8H / 8H

It is to be understood that the present invention is not limited to the above-described embodiment, but may be modified in various ways within the scope and spirit of the present invention as set forth in the claims below. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

100: Polycarbonate-glass bonding sheet
110: Polycarbonate substrate sheet
120: glass plate
130: bonded substrate

Claims (3)

A glass-polycarbonate-glass bonded sheet obtained by adhering a glass plate to both sides of a polycarbonate laminated sheet including an ultraviolet shielding coextruded layer laminated on both sides of a polycarbonate substrate sheet.
The bonding substrate according to claim 1, wherein the bonding substrate is at least one of polyvinyl butyral (PVB), ethyl vinyl acetate (EVA), polyolefin elastomer (POE), polyurethane An ethylene-acrylic copolymer resin film, and a glass-polycarbonate-glass bonding sheet characterized by being a bonding film or a bonding liquid.
The glass-polycarbonate-polycarbonate laminated sheet according to claim 1, wherein the thickness of the polycarbonate laminated sheet, the glass plate and the bonded substrate are 1 mm to 3 mm, 2 mm to 3 mm, and 0.4 mm to 2 mm, Glass bonded sheet.
KR1020150054865A 2015-04-18 2015-04-18 Polycarbonate-glass laminated sheet and method for manufacturing of the same KR20160124395A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019078476A1 (en) * 2017-10-20 2019-04-25 김관호 Vehicle insulating window panel made of polycarbonate material
KR20210084894A (en) * 2019-12-30 2021-07-08 재단법인 부산테크노파크 Composite multi-layered sheet for solar module and manufacturing method thereof
KR20220037678A (en) 2020-09-18 2022-03-25 주식회사 아이델 Hetero-junctioned sheet using UV curing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100075344A (en) 2008-12-24 2010-07-02 소우섭 Synthetic resin attached inorganic particle and adhesion sheet using the inorganic paticle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100075344A (en) 2008-12-24 2010-07-02 소우섭 Synthetic resin attached inorganic particle and adhesion sheet using the inorganic paticle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019078476A1 (en) * 2017-10-20 2019-04-25 김관호 Vehicle insulating window panel made of polycarbonate material
KR20190044160A (en) * 2017-10-20 2019-04-30 김관호 An Insulating Window Panel with a Polycarbonate Material for a Vehicle
KR20210084894A (en) * 2019-12-30 2021-07-08 재단법인 부산테크노파크 Composite multi-layered sheet for solar module and manufacturing method thereof
KR20220037678A (en) 2020-09-18 2022-03-25 주식회사 아이델 Hetero-junctioned sheet using UV curing

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