WO2017188686A1 - 접합 유리 및 접합 유리의 제조 방법 - Google Patents
접합 유리 및 접합 유리의 제조 방법 Download PDFInfo
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- WO2017188686A1 WO2017188686A1 PCT/KR2017/004343 KR2017004343W WO2017188686A1 WO 2017188686 A1 WO2017188686 A1 WO 2017188686A1 KR 2017004343 W KR2017004343 W KR 2017004343W WO 2017188686 A1 WO2017188686 A1 WO 2017188686A1
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- glass
- soda
- reinforced
- lime glass
- alkali
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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
- B32B17/10045—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 with at least one intermediate layer consisting of a glass sheet
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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
- B32B17/10082—Properties of the bulk of a glass sheet
-
- 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
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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
- B32B17/10082—Properties of the bulk of a glass sheet
- B32B17/10119—Properties of the bulk of a glass sheet having a composition deviating from the basic composition of soda-lime glass, e.g. borosilicate
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
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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
- 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
- B32B2605/00—Vehicles
Definitions
- the present invention relates to a laminated glass and a method for producing the laminated glass.
- safety glass In windows of vehicles, such as automobiles, safety glass is to be applied to protect the internals from external shocks.
- a laminated glass for inserting and bonding a copolymer film between the glass and tempered glass made by heating the glass at a high temperature and then quenching the glass is used.
- a bonding film is bonded between two sheets of soda lime glass in the form of a sandwich, and is used.
- Patent Document 1 Republic of Korea Patent Publication No. 10-2014-0088704
- Patent Document 2 Republic of Korea Patent Publication No. 10-2009-0125537
- the present invention relates to a laminated glass and a method for producing the laminated glass.
- soda lime glass And an unreinforced alkali free glass bonded to one surface of the soda lime glass, wherein the thickness of the soda lime glass is greater than the thickness of the non-reinforced alkali free glass, and the elastic modulus of the non-reinforced alkali free glass is Laminated glass is provided that is greater than the modulus of elasticity of soda-lime glass.
- preparing a soda lime glass Preparing an unreinforced alkali free glass; And bonding the non-reinforced alkali free glass on one surface of the soda lime glass, wherein the thickness of the soda lime glass is greater than the thickness of the non alkali glass, and the elastic modulus of the non-reinforced alkali free glass is Provided is a method for producing a laminated glass that is larger than the modulus of elasticity of the soda lime glass.
- the present invention due to the high mechanical properties of the non-reinforced alkali free glass, it is possible to effectively reduce the laminated glass.
- laminated glass can be economically produced through a simple process.
- FIG. 1 is a view showing a laminated glass according to an embodiment of the present invention.
- FIGS. 2A and 2B are views illustrating laminated glass according to another embodiment of the present invention.
- FIG 3 is a view showing a result of securing the rigidity according to the thickness ratio of the soda-lime glass and the non-reinforced alkali-free glass according to an embodiment of the present invention.
- Figure 4 is a view showing the results of falling ball impact test of the laminated glass prepared in Example 1, Example 2 and Comparative Example 1, Comparative Example 2.
- Example 5 is a view showing a high-speed animal impact test results of the laminated glass prepared in Example 2 and Comparative Example 2 of the present invention.
- any part of the specification is to "include” any component, this means that it may further include other components, except to exclude other components unless otherwise stated. Also, when a member is located “on” another member, this includes not only when one member is in contact with another member but also when another member exists between the two members.
- soda lime glass And an unreinforced alkali free glass bonded to one surface of the soda lime glass, wherein the thickness of the soda lime glass is greater than the thickness of the non-reinforced alkali free glass, and the elastic modulus of the non-reinforced alkali free glass is Laminated glass is provided that is greater than the modulus of elasticity of soda-lime glass.
- the present invention due to the high mechanical properties of the non-reinforced alkali free glass, it is possible to effectively reduce the laminated glass.
- the non-reinforced alkali free glass has excellent mechanical properties compared to the soda lime glass
- the laminated glass may include an unreinforced alkali free glass having a thickness smaller than that of the soda lime glass. Can be.
- the unreinforced alkali free glass has a higher modulus of elasticity than the soda lime glass.
- the non-reinforced alkali-free glass has a higher modulus of elasticity than the soda-lime glass, so that the laminated glass may have a robust structure even when the non-reinforced alkali-free glass is lighter and thinner than the soda-lime glass.
- the thickness ratio of the soda lime glass and the non-reinforced alkali free glass may be 1: 0.1 to 1: 0.5. Specifically, the thickness ratio of the soda lime glass and the non-reinforced alkali free glass may be 1: 0.2 to 1: 0.5.
- the non-reinforced alkali free glass may have better mechanical properties than the soda lime glass.
- the elastic modulus ratio of the soda lime glass and the non-reinforced alkali free glass may be 1: 1.04 to 1: 1.17.
- the elastic modulus ratio of the soda lime glass and the non-reinforced alkali free glass may be 1: 1.08 to 1: 1.15.
- the non-reinforced alkali free glass has a modulus of elasticity in the above range compared to the soda lime glass, and even when the non-reinforced alkali free glass is lighter and thinner than the soda lime glass, the laminated glass may have a robust structure.
- the elastic modulus of the non-reinforced alkali free glass may be 70 GPa or more and 90 GPa or less.
- the non-reinforced alkali free glass may have an elastic modulus of 75 GPa or more and 85 GPa or less.
- the soda lime glass may have an elastic modulus of 65 GPa or more and 75 GPa or less.
- the modulus of elasticity of the non-hardened alkali free glass and the soda lime glass can be measured by a three-point bending test.
- the non-hardened alkali free glass may have a higher Vickers hardness and fracture toughness than the soda lime glass.
- the Vickers hardness ratio of the soda lime glass and the unreinforced alkali free glass may be 1: 1.15 to 1: 1.27.
- the Vickers hardness ratio of the soda lime glass and the non-reinforced alkali free glass may be 1: 1.2 to 1: 1.25.
- the non-reinforced alkali free glass may have a higher hardness than the soda lime glass to provide a laminated glass having excellent wear resistance, scratch resistance, and durability.
- the Vickers hardness of the non-reinforced alkali free glass may be greater than or equal to 5.5 GPa and less than or equal to 7 GPa.
- the non-reinforced alkali free glass may have a Vickers hardness of 5.8 GPa or more and 6.9 GPa or less, 6.0 GPa or more and 6.7 GPa or less, 6.2 GPa or more and 6.5 GPa or less.
- the soda lime glass may have a Vickers hardness of 5.2 GPa or more and 5.8 GPa or less.
- the fracture toughness ratio of the soda-lime glass and the unreinforced alkali-free glass may be 1: 1.37 to 1: 1.45.
- the fracture toughness ratio of the soda lime glass and the non-reinforced alkali free glass may be 1: 1.39 to 1: 1.45.
- the non-reinforced alkali free glass has fracture toughness in the above range as compared to the soda lime glass, so that the fracture resistance to external impact of the laminated glass can be improved, and the breakdown strength of the laminated glass can be effectively prevented.
- the fracture toughness of the non-reinforced alkali free glass may be 1.0 MPa ⁇ m 1/2 or more and 1.3 MPa ⁇ m 1/2 or less.
- the fracture toughness values of the unreinforced alkali-free glass measured using the indentation fracture toughness method are 1.15 MPa ⁇ m 1/2 or more, 1.25 MPa ⁇ m 1/2 or less, 1.18 MPa ⁇ m 1/2 or more, 1.21 MPa M 1/2 or less.
- the soda lime glass may have fracture toughness of 0.7 MPa ⁇ m 1/2 or more and 0.85 MPa ⁇ m 1/2 or less.
- the fracture toughness values of the unreinforced alkali free glass and the soda lime glass can be measured using an indentation fracture toughness measurement method, and the Vickers hardness can be calculated by pressing the glass using Vickers indenter and measuring the size of the marks.
- the non-reinforced alkali free glass according to an embodiment of the present invention satisfies the above-described fracture toughness, modulus of elasticity, Vickers hardness, etc.
- the glass is composed of components and contents that are commonly used as window glass of a vehicle in the art. Can be adopted without any particular limitation.
- the composition of the non-reinforced alkali free glass is Si0 2 46 wt% or more and 57 wt% or less, Al 2 O 3 21 wt% or more and 29 wt% or less, MgO 3 wt per 100 wt% of the composition.
- Glass compositions containing at least% 14 wt%, at least 11 wt% CaO and at most 16 wt%, and at least 1 wt% SrO and at most 5 wt% and are substantially free of alkali metal oxides can be used.
- the alkali metal oxide is not substantially contained means that the alkali metal oxide is not contained in the glass at all, or even if it contains a part, the content is extremely small compared to other components and contains an amount that can be neglected as the composition component of the glass. And the like.
- it means that it may contain the trace amount of alkali metal elements unavoidably mixed in glass from the refractory which contacts a molten glass, the impurity in a glass raw material, etc ..
- the non-reinforced alkali free glass may be an alkali free glass containing less than 1% alkali metal (Li, Na, K, etc.) oxide in terms of mass percentage of oxide conversion, Any desired mechanical properties, weather resistance, surface smoothness, etc. can be used without limitation.
- An alkali-free borosilicate glass or an alkali-free alumino borosilicate glass can be used as the said non-hardened alkali free glass, and the glass manufactured by the float method, the glass drawn by the downdraw method, or the fusion method can also be used.
- the non-reinforced alkali-free glass has no or very low alkali component that weakens the bonding strength of the glass, the wear resistance and impact resistance of the surface is high even at a small thickness, compared to general glass, effectively reducing the laminated glass, wear resistance and durability Can improve.
- the alkali free glass may be non-tempered glass.
- the non-reinforced alkali free glass may be a non-reinforced glass that is not chemically strengthened, a non-reinforced glass that is not thermally strengthened, a non-reinforced glass that is not tempered using chemistry and heat.
- the tempered glass is to increase the strength of the glass, imparting impact resistance, elasticity resistance, etc., there is a thermally tempered glass using physical heat and chemically tempered glass using chemical ion exchange.
- the process of processing and molding tempered glass is not easy, so the defect rate of the laminated glass is high, and there is a problem in that the cost of manufacturing the laminated glass is high.
- the ion-reinforced glass as the cleaning process is required after the ion-reinforcement process for a predetermined time at a high temperature, there is a problem that the production time of the laminated glass increases and the production cost is increased.
- the present invention it is possible to use a non-reinforced alkali-free glass that has not undergone a process such as chemical strengthening and heat strengthening, it is easy to process and can reduce the manufacturing cost by eliminating the strengthening process, Problems that may occur in the process of manufacturing laminated glass using tempered glass can be solved, and manufacturing cost and manufacturing time can be shortened.
- the alkali-free glass is not subjected to the strengthening treatment, when the windshield (windshield) application, it may be easy to secure the view even if the breakage occurs.
- soda-lime glass according to an embodiment of the present invention, if it satisfies the above-described fracture toughness, modulus of elasticity, Vickers hardness, etc., the glass composed of the components and contents commonly used as the window glass of the vehicle in the art Adopted without limitation.
- soda lime glass for example, 100 wt% of Si0 2 65 wt% or more, 75 wt% or less, Al 2 O 3 0 wt% or more and 10 wt% or less, NaO 2 10 wt% or more and 15 wt% or less, Glass having a composition comprising at least 0 wt% K 2 O and at most 5 wt%, CaO at least 1 wt% and at most 12 wt% and MgO at least 0 wt% and at most 8 wt% may be used, but the desired mechanical properties, weather resistance, and surface smoothness may be used. It can be used without limitation as long as it can be obtained.
- soda lime glass glass produced by a float method using a float bath, glass drawn by a down draw method or a fusion method can also be used.
- the thickness of the non-reinforced alkali free glass may be 0.3 mm or more and 1.0 mm or less.
- the non-reinforced alkali free glass may be manufactured to a thickness of 0.3 mm or more and 1.0 mm or less, specifically, 0.3 mm or more and 0.7 mm or less, and more specifically 0.4 mm or more and 0.5 mm or less.
- the thickness of the non-reinforced alkali free glass is less than 0.3 mm, a problem may occur in that impact resistance of the laminated glass is reduced, and when the thickness of the non-reinforced non-alkali glass exceeds 1 mm, it is difficult to obtain a lightening effect of the laminated glass. Can be.
- the present invention due to the high mechanical properties of the non-reinforced alkali-free glass having the thickness, it is possible to achieve the weight reduction of the laminated glass, resistant to local impact, even in case of breakage Secondary damage due to visual disturbance or shattered glass also has a very small advantage over tempered glass.
- the soda lime glass may be manufactured to a thickness of 2 mm or more and 3 mm or less. If the thickness of the soda lime glass is less than 2 mm may cause a problem that the impact resistance of the laminated glass produced is reduced, if the thickness of the soda lime glass exceeds 3 mm it may be difficult to obtain a lightening effect of the laminated glass. . Therefore, the thickness of the soda lime glass may be 2 mm or more and 3 mm or less.
- the upper limit value and the lower limit value of the non-reinforced alkali free glass and soda lime glass thickness may be determined in consideration of elastically absorbing external force and mechanical impact force.
- the laminated glass including the non-reinforced alkali free glass and soda lime glass having the thickness the existing laminated glass in which two conventional soda lime glass having a thickness of about 2.1 mm
- it may have a thickness of 50% or more and 80% or less, and may have a weight of 50% or more and 80% or less. Therefore, according to one embodiment of the present invention, it is possible to provide a lighter, thinner laminated glass than conventional laminated glass.
- the non-reinforced alkali free glass may be bonded on one surface of the soda lime glass by a bonding film or an adhesive.
- 1 is a view showing a laminated glass according to an embodiment of the present invention.
- 1 is a bonding film 20 is interposed between the soda lime glass 10 and the non-reinforced alkali free glass 30 according to an embodiment of the present invention, the soda lime glass 10 and the non-reinforced alkali free glass
- stacked was shown.
- the bonding film according to an embodiment of the present invention may be a single layer or a multilayer.
- the composition of each layer may differ, and the thickness of each layer may be the same or different.
- the bonding film can be used by adopting a (co) polymer film of a material commonly used as a bonding layer in laminated glass in the art, such as polyvinyl alcohol (PVA) and polyvinyl butyral (PVB) copolymer film, without particular limitation. have.
- PVA polyvinyl alcohol
- PVB polyvinyl butyral
- polyethylene PE
- ethylene vinyl acetate copolymer EVA
- polypropylene PP
- polystyrene PS
- methacryl resin PMA
- polyvinyl chloride PVC
- PET polyethylene terephthalate
- PBT poly Butylene terephthalate
- CA diallyl phthalate resin
- UP urea resin
- MF unsaturated polyester
- PVB poly Vinyl formal
- PVC polyvinyl alcohol
- PVc vinyl acetate resin
- IO ionomer
- IO polymethylpentene
- TPX vinylidene chloride
- PVDC polysulfone
- PVDF polyvinylidene fluoride
- MS polyarylate
- PAR polyallyl sulfone
- PASF polyallyl sulfone
- BR polybutadiene
- the thickness of the bonding film may be 0.5 mm or more and 1 mm or less. Specifically, the thickness of the bonding film may be 0.6 mm or more and 0.9 mm or less.
- the thickness of the laminated film is less than 0.5 mm, the shock absorbency of the laminated film is lowered, and the adhesive strength to the non-reinforced alkali free glass and soda lime glass is not sufficient, and the force for fixing the non-reinforced alkali free glass and soda lime glass is insufficient. Problems such as weakening of the interface may occur.
- the thickness of the laminated film exceeds 1.0 mm, the rigidity of the laminated glass may be lowered.
- the thickness of the laminated film may be 0.5 mm or more and 1 mm or less in order to maintain rigidity of the laminated glass and stably fix the non-reinforced alkali free glass and soda lime glass.
- the adhesive may include an optically clear adhesive (OCA), a liquid optically clear adhesive (LOCA), or an optically clear resin (OCR).
- OCA optically clear adhesive
- LOCA liquid optically clear adhesive
- OCR optically clear resin
- the adhesive may be applied to a thickness of 0.5 mm or more and 1.5 mm or less on one surface of the non-hardened alkali free glass or one surface of the soda lime glass.
- the laminated glass may be curved laminated glass curved in a state in which the unreinforced alkali free glass and the soda lime glass are matched.
- One surface of the non-reinforced non-alkali glass that is curved to form a curved surface and one surface of the soda lime glass that is curved to form a curved surface may be closely contacted with each other to form a curved laminated glass.
- soda lime glass soda lime glass; And an unreinforced alkali free glass bonded to one surface of the soda lime glass, wherein the thickness of the soda lime glass is greater than the thickness of the non-reinforced alkali free glass, and the elastic modulus of the non-reinforced alkali free glass is
- the non-reinforced alkali free glass and the soda lime glass may be provided in a curved state to be curved while being matched with each other.
- non-reinforced non-alkali glass and the curved soda-lime glass bent to form a curved surface and the non-reinforced non-alkali glass and soda-lime glass may form an edge together at the same position.
- the non-reinforced alkali free glass and the soda lime glass are matched, it is possible to suppress the occurrence of lifting between the glass in the curved laminated glass, and improve the permeation performance of the curved laminated glass.
- the curved laminated glass is curved in a state in which the non-reinforced alkali free glass and soda lime glass are matched, and the non-reinforced non-alkali glass curved to form a curved surface is a convex surface or concave of the curved soda lime glass. It can be located on the other side.
- the curved laminated glass curved in a state where the non-reinforced alkali free glass and the soda lime glass are matched may have a structure in which both sides thereof are bent more than the center portion.
- the curved laminated glass having the above structure can be applied to automotive glass.
- the present invention can be applied to front windows, side windows, rear windows, and sunroof windows of automotive glass.
- front window of the vehicle glass it is possible to reduce the resistance to the running wind hit during driving of the car in a streamlined curved shape.
- FIGS. 2A and 2B are views illustrating laminated glass according to another embodiment of the present invention.
- the non-reinforced alkali free glass 30 curved to form a curved surface may be located on one convex surface of the soda lime glass 10 curved to form a curved surface.
- the curved laminated glass 41 bonded to one convex surface of the soda-lime glass 10 curved to form one surface of the non-reinforced alkali free glass 30 curved to form a curved surface may be used as an automotive glass.
- the automotive glass may ensure high scratch resistance and high glass surface hardness. Accordingly, it is possible to effectively reduce the damage to the external foreign matter impact, such as sand flying from the outside of the vehicle.
- the non-reinforced alkali free glass has high fracture toughness, it is possible to provide an automotive glass having excellent fracture resistance due to external impact.
- the non-hardened alkali free glass 30 that is curved to form a curved surface may be located on the other concave surface of the soda lime glass 10 that is curved to form a curved surface.
- the curved laminated glass 42 bonded to the concave other surface of the non-reinforced alkali-free glass 30 that is curved to form a curved surface and the curved soda lime glass 10 may be used as a glass for automobiles.
- the non-reinforced alkali free glass 30 is located inside the automobile glass, even if the curved laminated glass 42 is broken, the non-reinforced alkali free glass 30 is not scattered, so that the occupant may be injured. Can be effectively prevented.
- the non-reinforced alkali-free glass curved and the soda lime glass curved may have the same radius of curvature.
- the non-reinforced non-alkali glass bent to form a curved surface and the soda-lime glass may have a radius of curvature of 3,000 mm or more and 10,000 mm or less.
- the curvature radius of the bonded soda lime glass and the non-reinforced alkali free glass may be 4,000 mm or more and 8,000 mm or less, 5,000 mm or more and 7,000 mm or less.
- the radius of curvature of the soda-lime glass and the non-reinforced alkali free glass may be formed differently according to the use of the glass to be applied.
- FIG. 3 is a view showing a result of securing the rigidity according to the thickness ratio of the soda-lime glass and the non-reinforced alkali-free glass according to an embodiment of the present invention.
- the x axis represents the total glass thickness and the y axis represents the amount of glass deflection, that is, the degree of warpage.
- the deflection amount of the central portion was analyzed by applying a constant load to the central portion while fixing the four corners of the curved laminated glass according to the exemplary embodiment of the present invention.
- [Asymmetry ratio (AR)] [thickness of non-reinforced alkali free glass] / [thickness of soda lime glass] may satisfy a range of 0.1 to 0.5. As the AR becomes smaller, the thickness of the non-hardened alkali free glass becomes thinner, and the thickness of the soda lime glass becomes thicker. As shown in Figure 3, by adjusting the thickness of the non-reinforced alkali-free glass and soda lime glass, it is possible to secure the rigidity by lowering the degree of bending of the curved laminated glass. Therefore, according to one embodiment of the present invention, by adjusting the thickness of the non-reinforced alkali free glass 200 and the soda lime glass 100, it is possible to further improve the rigidity increasing effect and the lightening effect of the curved laminated glass.
- the non-reinforced alkali free glass and soda lime glass may each independently include one or more coloring components.
- a coloring component By adding a coloring component to the said non-reinforced alkali free glass and soda-lime glass, a thermal cutoff function can be provided to laminated glass.
- Fe 2 O 3 , CoO, Se, and the like may be used as the coloring component, but is not limited thereto.
- the coloring component may be a content of each of the coloring component of 0.0001 parts by weight or more, 2 parts by weight, 0.0005 parts by weight or more 1 part by weight, 0.01 parts by weight or more by 0.1 parts by weight based on 100 parts by weight of the glass composition.
- the content of the aforementioned constituent components may be adjusted according to the use in which the laminated glass is used.
- the visible light transmittance of the laminated glass can be formed to 70% or more.
- the visible light transmittance of the laminated glass may be formed at about 5%.
- preparing a soda lime glass Preparing an unreinforced alkali free glass; And bonding the non-reinforced alkali free glass on one surface of the soda lime glass, wherein the thickness of the soda lime glass is greater than the thickness of the non alkali glass, and the elastic modulus of the non-reinforced alkali free glass is Provided is a method for producing a laminated glass that is larger than the modulus of elasticity of the soda lime glass.
- laminated glass can be economically produced through a simple process.
- the non-reinforced alkali free glass, the soda-lime glass, the laminated film, etc. used in the laminated glass manufacturing method according to another embodiment of the present invention is the non-reinforced radish used in the laminated glass according to an embodiment of the present invention described above It may be the same as the alkali glass, the soda-lime glass, the bonding film and the like.
- the non-reinforced alkali-free glass has excellent mechanical properties compared to the soda-lime glass, to produce a laminated glass using a non-reinforced non-alkali glass having a thickness smaller than the thickness of the soda-lime glass can do. Therefore, according to another embodiment of the present invention, it is possible to easily produce a lightweight and thin laminated glass.
- the soda-lime glass and the non-reinforced alkali-free glass can be cut to the desired size.
- the side surfaces of the soda lime glass and the non-reinforced alkali free glass may be beveled.
- the bonding step may be bonded to the soda-lime glass using the non-reinforced alkali-free glass bonding film or adhesive.
- a laminated glass can be manufactured by bonding an unreinforced alkali free glass and soda-lime glass using a bonding film or an adhesive agent. Specifically, after placing a laminated film between one surface of the said non-reinforced alkali free glass and one surface of the said soda-lime glass, a laminated glass can be manufactured by pressurizing and heating. After placing the bonding film between one surface of the non-reinforced alkali free glass and one surface of the soda lime glass, deformation may be generated in the bonding film during the pressing and heating process. Therefore, in consideration of the degree to which the bonding film is deformed, the bonding film can be cut and used.
- one surface of the non-reinforced alkali free glass can be bonded to one surface of the soda lime glass via the adhesive.
- the bonding step may be performed at a temperature of 80 ° C or more and 140 ° C or less.
- the bonding film or the adhesive may be prevented from being denatured and the adhesive force may be reduced. The cost can be reduced.
- a high temperature and high pressure treatment may be additionally performed in an autoclave to complete bonding of the unreinforced alkali free glass and soda lime glass.
- the soda-lime glass or the non-hardened alkali free glass may further comprise the step of processing into a curved surface.
- the step of processing the soda-lime glass or the non-reinforced alkali-free glass into a curved surface the soda-lime glass may be heated to the vicinity of the softening point of the soda-lime glass to be curved surface processing, the non-reinforced non-alkali glass is not reinforced It can be heated and processed to the vicinity of the softening point of an alkali free glass.
- Curved processing of the soda-lime glass and the non-reinforced alkali free glass may be carried out by conventional methods in the art. Specifically, the soda-lime glass or the non-reinforced alkali-free glass is placed on a mold to expose to high temperature to form a self-weight method, or the soda-lime glass or non-reinforced alkali-free between upper and lower bold (mold) After the glass is inserted, the molding may be performed by a press method applying a pressure at a high temperature.
- the non-reinforced alkali-free glass is deformed in the process of processing the soda-lime glass into a curved surface, and bonding the non-reinforced alkali-free glass on one surface of the soda-lime glass processed into a curved surface. And it can manufacture curved laminated glass.
- the non-reinforced alkali free glass may be elastically deformed in the process of bonding the non-reinforced alkali free glass onto one surface of the soda-lime glass processed into a curved surface.
- the non-reinforced alkali free glass can be elastically deformed at room temperature of approximately 20 ° C. or more and 35 ° C. or less.
- the soda-lime glass is deformed in the process of processing the non-reinforced alkali-free glass into a curved surface, and bonding the soda lime glass on one surface of the non-reinforced alkali-free glass processed into a curved surface And it can manufacture curved laminated glass.
- the method of modifying the soda lime glass is not particularly limited as long as it is a method commonly used in the art.
- each of the non-reinforced alkali free glass and the soda lime glass can be processed into a curved surface and bonded to produce a curved laminated glass.
- the soda-lime glass may be processed into a curved surface at a temperature of 500 ° C or more and 700 ° C or less, and the non-hardened alkali free glass may be processed into a curved surface at a temperature of 700 ° C or more and 900 ° C or less.
- the soda-lime glass and the non-reinforced alkali-free glass may be processed into curved surfaces such that the soda lime glass and the non-reinforced alkali free glass have substantially the same radius of curvature.
- the soda-lime glass and the non-reinforced alkali free glass are processed into curved surfaces to have substantially the same radius of curvature, when the soda-lime glass processed into curved surfaces and the non-reinforced non-alkali glass processed into curved surfaces have the same radius of curvature. Even though the curvature radii of the curved soda-lime glass and the non-reinforced non-alkali glass processed into the curved surface are somewhat different, after the bonded soda-lime glass and the non-reinforced non-alkali glass processed into the curved surface are joined together, The case may have the same radius of curvature.
- the non-hardened alkali free glass and the curved soda-lime glass bonded to the curved soda-lime glass may have the same radius of curvature, which may be more precisely matched, and the permeation performance of the curved laminated glass manufactured therefrom. This can be improved.
- the curved laminated glass is used in a front window for an automobile, the user has an advantage of more clearly securing a field of view.
- the curved soda-lime glass and the curved non-hardened alkali free glass may have a radius of curvature of 3,000 mm or more and 10,000 mm or less.
- the curvature radius of the bonded soda lime glass and the non-reinforced alkali free glass may be 4,000 mm or more and 8,000 mm or less, 5,000 mm or more and 7,000 mm or less.
- the radius of curvature of the soda-lime glass and the non-reinforced alkali free glass may be formed differently according to the use of the glass to be applied.
- the soda-lime glass processed into the curved surface and the non-reinforced alkali free glass processed into the curved surface may be bonded using a bonding film or an adhesive.
- the curved laminated glass may be manufactured by placing a bonding film between one surface of the non-reinforced alkali-free glass processed into the curved surface and one convex or concave other surface of the soda lime glass processed into the curved surface, and then pressing and pressing. have. Further, by applying an adhesive to one surface of the non-reinforced alkali free glass processed into the curved surface, one surface of the non-reinforced alkali free glass can be bonded to one surface or the other surface of the soda lime glass via the adhesive.
- the non-reinforced alkali-free glass processed into a curved surface may be bonded to one convex surface of the soda-lime glass processed into a curved surface to manufacture a curved laminated glass. Since the non-reinforced alkali free glass is bonded to one convex surface of the soda lime glass, it is preferable that the non-reinforced non-alkali glass of plate shape before processing into curved surface has a larger dimension than the plate-like soda lime glass before processing into curved surface. can do. In addition, it may be preferable to bond the unreinforced alkali-free glass processed into a curved surface to form an edge together at the same position as the soda-lime glass processed into a curved surface.
- the non-reinforced non-alkali glass processed into a curved surface may be bonded to the concave other surface of the soda-lime glass processed into a curved surface to produce a curved laminated glass. Since the non-reinforced alkali free glass is bonded to the concave other surface of the soda lime glass, it is preferable that the non-reinforced non-alkali glass of the plate shape before processing into a curved surface has a smaller dimension than the plate-like soda lime glass before processing into a curved surface. can do. In addition, it may be preferable to bond the unreinforced alkali-free glass processed into a curved surface to form an edge together at the same position as the soda-lime glass processed into a curved surface.
- An unreinforced alkali free glass comprising a Si0 2 61 wt%, Al 2 O 3 16 wt%, MgO 3 wt%, CaO 8 wt% or less, and SrO 0.05 wt% and a thickness of 0.5 mm per 100 wt% of the composition.
- soda-lime glass was used to make 73 wt% of Si0 2 , 0.15 wt% of Al 2 O 3 , 14 wt% of Na 2 O, 0.03 wt% of K 2 O, and 9 wt% of CaO per 100 wt% of the composition and Soda-lime glass including 4 wt% MgO and having a thickness of 2.0 mm was prepared.
- a polyvinyl butyral (PVB) film having a thickness of 0.76 mm was prepared as a bonding film.
- the elastic modulus of the alkali free glass is 78 GPa, the Vickers hardness is 6.3 GPa, the fracture toughness is 1.20 MPa ⁇ m 1/2 , and the soda-lime glass has an elastic modulus of 72 GPa, the Vickers hardness of 5.6 GPa, and the fracture toughness of 0.85. MPa ⁇ m 1/2 .
- a bonding film was placed between the soda-lime glass and the alkali free glass, and the resultant was pressed under pressure at 80 ° C. and 300 torr.
- the pressed alkali-free glass and soda-lime glass were treated in an autoclave under conditions of 130 ° C. and 11.76 bar to prepare a laminated glass.
- Example 2 laminated glass was manufactured in the same manner as in Example 1 except that soda-lime glass having a thickness of 2.1 mm was prepared.
- soda-lime glass having a PVB film having a thickness of 0.34 mm were prepared as a bonding film.
- the soda-lime glass has an elastic modulus of 72 GPa, a Vickers hardness of 5.6 GPa, and fracture toughness of 0.85 MPa ⁇ m 1/2 .
- a bonding film was placed between two sheets of soda-lime glass and pressed under pressure at 80 ° C. and 300 torr. The pressed soda lime glass was treated in an autoclave at 130 ° C. under 11.76 bar to prepare a laminated glass.
- Comparative Example 2 a laminated glass was manufactured in the same manner as in Comparative Example 1, except that two sheets of soda lime glass having a thickness of 2.1 mm were prepared.
- Example 1 The laminated glass prepared in Example 1, Example 2 and Comparative Example 1, Comparative Example 2 was cut to 300 mm in length and 300 mm in length, in Example 1, Example 2 and Comparative Example 1, Comparative Example 2 50 samples of the prepared laminated glass were prepared. The prepared samples were placed so that the soda-lime glass is located on the upper side, and the falling ball impact test was conducted by dropping a ball having a weight of 227 g at a height of 2.8 m from the sample to impact the sample.
- Figure 4 is a view showing the results of falling ball impact test of the laminated glass prepared in Example 1, Example 2 and Comparative Example 1, Comparative Example 2.
- FIG. 4 the falling-ball impact damage rate with respect to 50 samples of each laminated glass manufactured in Example 1, Example 2, Comparative Example 1, and Comparative Example 2 is shown.
- Falling ball impact failure rate is the ratio of the samples in which damage occurred when visually identified among the 50 samples in which the falling ball impact test was performed.
- the non-reinforced alkali free glass included in the laminated glass prepared in Examples 1 and 2 of the present invention is thicker than the soda-lime glass contained in the laminated glass prepared in Comparative Examples 1 and 2 In spite of being small, it can be seen that the laminated glass prepared in Examples 1 and 2 of the present invention has a lower breakage rate against falling ball impact than Comparative Examples 1 and 2 including two soda-lime glasses. .
- the laminated glass prepared in Example 2 and Comparative Example 2 was cut to 300 mm in length and 300 mm in length, and 50 samples of the laminated glass prepared in Example 2 and Comparative Example 2 were prepared.
- the prepared samples were placed vertically with respect to the ground, and the high-speed animal impact test was conducted by firing a ball of 1 g toward the soda-lime glass side of the sample at a speed of 130 km / h and a speed of 150 km / h. .
- Example 5 is a view showing a high-speed animal impact test results of the laminated glass prepared in Example 2 and Comparative Example 2 of the present invention.
- FIG. 5 the average value of the high speed animal impact damage rate for 50 samples of each laminated glass prepared in Example 2 and Comparative Example 2 is shown.
- High-speed animal impact damage rate refers to the ratio of the samples in which damage occurred when visually identified among the 50 samples subjected to the high-speed animal impact test.
- Example 2 of the present invention is more damaged than the laminated glass of Comparative Example 2 It can be seen that the rate is small.
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Abstract
Description
Claims (14)
- 소다라임 유리; 및상기 소다라임 유리의 일면 상에 접합되는 비강화 무알칼리 유리;를 포함하고,상기 소다라임 유리의 두께는 상기 비강화 무알칼리 유리의 두께보다 크고, 상기 비강화 무알칼리 유리의 탄성계수는 상기 소다라임 유리의 탄성계수보다 큰 것인 접합 유리.
- 청구항 1에 있어서,상기 소다라임 유리와 상기 비강화 무알칼리 유리의 두께 비는 1:0.1 내지 1:0.5인 것인 접합 유리.
- 청구항 1에 있어서,상기 비강화 무알칼리 유리의 두께는 0.3 mm 이상 1.0 mm 이하인 것인 접합 유리.
- 청구항 1에 있어서,상기 소다라임 유리와 상기 비강화 무알칼리 유리의 탄성계수 비는 1:1.04 내지 1:1.17인 것인 접합 유리.
- 청구항 1에 있어서,상기 비강화 무알칼리 유리의 탄성계수는 70 GPa 이상 90 GPa 이하인 것인 접합 유리.
- 청구항 1에 있어서,상기 소다라임 유리와 상기 비강화 무알칼리 유리의 비커스 경도 비는 1:1.15 내지 1:1.27인 것인 접합 유리.
- 청구항 1에 있어서,상기 비강화 무알칼리 유리는 접합 필름 또는 접착제에 의하여 상기 소다라임 유리의 일면 상에 접합되는 것인 접합 유리.
- 청구항 1에 있어서,상기 접합 유리는 상기 비강화 무알칼리 유리와 상기 소다라임 유리가 정합된 상태로 곡면을 이루며 휘어진 곡면 접합 유리인 것인 접합 유리.
- 소다라임 유리를 준비하는 단계;비강화 무알칼리 유리를 준비하는 단계; 및상기 소다라임 유리의 일면 상에 상기 비강화 무알칼리 유리를 접합하는 단계;를 포함하고,상기 소다라임 유리의 두께는 상기 비알칼리 유리의 두께보다 크고, 상기 비강화 무알칼리 유리의 탄성계수는 상기 소다라임 유리의 탄성계수보다 큰 것인 접합 유리의 제조 방법.
- 청구항 9에 있어서,상기 접합하는 단계는 80 ℃ 이상 140 ℃ 이하의 온도에서 수행되는 것인 접합 유리의 제조 방법.
- 청구항 9에 있어서,상기 접합하는 단계는 상기 비강화 무알칼리 유리를 접합 필름 또는 접착제를 이용하여 상기 소다라임 유리에 접합하는 것인 접합 유리의 제조 방법.
- 청구항 9에 있어서,상기 소다라임 유리 또는 상기 비강화 무알칼리 유리를 곡면으로 가공하는 단계를 더 포함하는 것인 접합 유리의 제조 방법.
- 청구항 12에 있어서,상기 소다라임 유리는 500 ℃ 이상 700 ℃ 이하의 온도에서 곡면으로 가공되는 것인 접합 유리의 제조 방법.
- 청구항 12에 있어서,상기 비강화 무알칼리 유리는 700 ℃ 이상 900 ℃ 이하의 온도에서 곡면으로 가공되는 것인 접합 유리의 제조 방법.
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JP2018554523A JP6583844B2 (ja) | 2016-04-26 | 2017-04-25 | 接合ガラスおよび接合ガラスの製造方法 |
CN201780025787.9A CN109070548B (zh) | 2016-04-26 | 2017-04-25 | 夹层玻璃和用于夹层玻璃的制造方法 |
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JP7040735B2 (ja) | 2018-01-10 | 2022-03-23 | エルジー・ケム・リミテッド | 曲面合わせガラスの製造方法およびこれにより製造された曲面合わせガラス |
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Also Published As
Publication number | Publication date |
---|---|
EP3450161A1 (en) | 2019-03-06 |
KR20170122132A (ko) | 2017-11-03 |
EP3450161A4 (en) | 2019-04-17 |
JP6583844B2 (ja) | 2019-10-02 |
CN109070548B (zh) | 2021-05-07 |
EP3450161B1 (en) | 2020-04-22 |
KR102122948B1 (ko) | 2020-06-16 |
CN109070548A (zh) | 2018-12-21 |
US10919270B2 (en) | 2021-02-16 |
US20190134953A1 (en) | 2019-05-09 |
JP2019517976A (ja) | 2019-06-27 |
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