CN110315814A - Glass engagement plural layers, laminated glass and its manufacturing method including it - Google Patents

Glass engagement plural layers, laminated glass and its manufacturing method including it Download PDF

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Publication number
CN110315814A
CN110315814A CN201810904547.2A CN201810904547A CN110315814A CN 110315814 A CN110315814 A CN 110315814A CN 201810904547 A CN201810904547 A CN 201810904547A CN 110315814 A CN110315814 A CN 110315814A
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China
Prior art keywords
layer
glass
plural layers
engagement
engaging force
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Granted
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CN201810904547.2A
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Chinese (zh)
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CN110315814B (en
Inventor
金惠珍
金兴植
延济源
尹仁洙
李学守
郑盛真
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Aisikai Mcwoo Co ltd
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SKC Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered 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
    • B32B17/10Layered 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
    • B32B17/10005Layered 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
    • B32B17/1055Layered 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
    • B32B17/10761Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered 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
    • B32B17/10Layered 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
    • B32B17/10005Layered 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
    • B32B17/10009Layered 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
    • B32B17/10036Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered 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
    • B32B17/10Layered 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
    • B32B17/10005Layered 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
    • B32B17/1055Layered 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered 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
    • B32B17/10Layered 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
    • B32B17/10005Layered 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
    • B32B17/1055Layered 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
    • B32B17/10605Type of plasticiser
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered 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
    • B32B17/10Layered 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
    • B32B17/10005Layered 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
    • B32B17/10807Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10889Making laminated safety glass or glazing; Apparatus therefor shaping the sheets, e.g. by using a mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered 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
    • B32B17/10Layered 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
    • B32B17/10005Layered 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
    • B32B17/10807Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10981Pre-treatment of the layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/18Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/42Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/06Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/10Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102Insulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/50Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558Impact strength, toughness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00Treatment by energy or chemical effects
    • B32B2310/14Corona, ionisation, electrical discharge, plasma treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2315/00Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08Glass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/003Interior finishings

Landscapes

  • Joining Of Glass To Other Materials (AREA)

Abstract

The present invention provides a kind of glass engagement plural layers etc., and the glass engagement plural layers include: first layer, includes the first polyvinyl acetal resin and the first plasticizer, the first layer with the first glass while directly connect;And the second layer, the one side of the second layer directly connects with the another side of the first layer, it and include the second polyvinyl acetal resin and the second plasticizer, thus, the glass engagement plural layers improve the inter-layer bonding force of plural layers while impact resistance, resistance to connectivity, sound damping etc. are maintained at certain level or more, and the difference between the engaging force at the interface between the interface between plural layers and glass and each layer of plural layers is reduced, thus minimizes the defect of such as frost flower phenomenon sound insulation intermediate coat.

Description

Glass engagement plural layers, laminated glass and its manufacturing method including it
Technical field
The present invention relates to the glass engagement plural layers of reduction defect generation, including the glass engagement plural layers Laminated glass and its manufacturing method (Multilayer Film For Laminating Glasses, Laminated Glasses Comprising Of The Same,Manufacturing Method For The Same)。
Background technique
In general, the laminated glass being made of a pair of of glass panel and the film of synthetic resin being inserted between these panels is i.e. Make its glass fragment when broken that will not disperse, therefore there is excellent safety, to be widely used in such as automobile road The glass for vehicle window of vehicle and the window-glass of building.
This laminated glass is needed with sound insulation value.The sound insulation value indicates the loss that penetrates based on frequency, and Sound insulation value is assessed through method of loss etc. by the frequency range assessment in 500Hz or more.But sound insulation value exists There are many case where frequency field near 2000Hz significantly reduces.In order to minimize this phenomenon, it has been proposed that Various measures, for example, the increase of the quality of laminated glass, multilaminated glass structure, the division of laminated glass area and interlayer The improvement etc. of glass support structure.However, not only effect is not so good for these methods, but also the cost in business application, work The unreasonable situation of property etc. is more, therefore, usually using three layers or more of plural layers as acoustic film application.
Although the existing multilayered structure polyacetals intermediate coat with sound insulation value has excellent sound insulation value, need Compensate the durability of such as low interlayer engaging force.
Existing technical literature
Patent document
Patent document 0001: (grant date: 2015.02.06 " improves resistance to pass through to Korean granted patent the 10-1492971st The Polyvinyl acetal film of the general character ");
Patent document 0002: Korean Patent Publication bulletin the 10-2014-0138860th (publication date: 2014.12.04, " defect inhibits sound insulation intermediate middle layer ").
Summary of the invention
Technical problem
The purpose of the present invention is to provide the glass of a kind of raising inter-layer bonding force and reduction acoustic film defect generation to connect Share plural layers, laminated glass and its manufacturing method including the glass engagement plural layers.
Solution to problem
In order to reach purpose described above, the glass engagement of an embodiment according to the present invention can wrap with plural layers Include: first layer includes the first polyvinyl acetal resin and the first plasticizer, the one side of the first layer and the one of the first glass Face directly connects;And the second layer, the one side of the second layer directly connect with the another side of the first layer, and include second poly- Vinyl acetal resin and the second plasticizer, wherein first glass and described first assessed by 180 degree peel test The difference between the engaging force between engaging force and the first layer and the second layer between layer can be equal to or less than 7Kgf/ 10mm。
Glass engagement plural layers according to another embodiment of the present invention may include: first layer, poly- comprising first Vinyl acetal resin and the first plasticizer, the first layer with the first glass while directly connect;And the second layer, The one side of the second layer directly connects with the another side of the first layer, and includes the second polyvinyl acetal resin and second Plasticizer, wherein the one side of the first layer for the glass engagement plural layers assessed by 180 degree peel test with Engaging force between the second layer can have the engaging force increase rate value equal to or more than 20%, the engaging force increase rate Value expression is improved compared with the engaging force between the second layer with the one side of the first layer engaged without plasma treatment The degree of engaging force.
Glass engagement plural layers according to still another embodiment of the invention may include: first layer, poly- comprising first Vinyl acetal resin and the first plasticizer, the first layer with the first glass while directly connect;And the second layer, The one side of the second layer directly connects with the another side of the first layer, and includes the second polyvinyl acetal resin and second Plasticizer, wherein by engaging force between 180 degree peel test first glass assessed and the first layer and described The difference of engaging force between first layer and the second layer can be equal to or less than 20%.
The second layer can contain more plasticizer compared with the first layer.
The hydroxy radical content of first polyvinyl acetal resin can be equal to or more than 30mol%, and acetyl content 2mol% can be less than.
After the glass engagement plural layers are placed 24 hours at 50 DEG C of temperature and 20% relative humidities, It forms the hole 8mm and forms laminated glass, then, after being placed 24 hours in 85 DEG C of baking ovens, observe raw on the hole periphery The size of long bubble, result can satisfy bubble with the condition of the 200% of hole range growth below.
Interface between the first layer and the second layer can be by described to connect with the second layer One layer or with engage after the while carry out plasma treatment of the second layer that connects of the first layer made of.
The bonding force value between the first layer and the second layer assessed by 180 degree peel test can for 25 to 40Kgf/10mm。
The glass engagement plural layers may also include third layer, and the one side of the third layer and the second layer are direct Connect and its another side directly connects with the second glass, and the third layer includes that third polyvinyl acetal resin and third increase Mould agent.
Pass through the engaging force and described second between 180 degree peel test second glass assessed and the third layer The difference between engaging force between layer and the third layer can be equal to or less than 7Kgf/10mm.
The one side of the third layer for the glass engagement plural layers assessed by 180 degree peel test with it is described Connecing between the one side and the second layer of the third layer that the engaging force between the second layer can be engaged with without plasma treatment Resultant force is compared and improves 20% or more.
The second layer can contain more plasticizer compared with the third layer.
The hydroxy radical content of the third polyvinyl acetal resin can be equal to or more than 30mol%, and acetyl content 2mol% can be less than.
Interface between the third layer and the second layer can be by described to connect with the third layer Two layers or with engage after the while carry out plasma treatment of third layer that connects of the second layer made of.
Bonding force value between the second layer assessed by 180 degree peel test and the third layer can for 25 to 40Kgf/10mm。
The preparation method of plural layers according to still another embodiment of the invention includes: extrusion step, will be gathered comprising first The first layer formation of vinyl acetal resin and the first plasticizer puts into the first extruder with composition, will include the second poly- second The second layer formation of enol acetal resin and the second plasticizer puts into the second extruder with composition, thus squeeze out first layer and The second layer;Surface treatment step, to the first layer or the while carry out plasma treatment of the second layer formed Surface treated one side;And Stacking steps, extrusion lamination is carried out, so as to pass through in the first layer and the second layer One layer of the surface treatment step it is surface treated with another layer without surface treatment while connect.
To prepare first glass assessed by 180 degree peel test and described the using the preparation method The difference between the engaging force between engaging force and the first layer and the second layer between one layer is equal to or less than 7Kgf/ Plural layers are used in the glass engagement of 10mm.
Glass engagement plural layers can be prepared using the preparation method, are assessed by 180 degree peel test Engaging force between the one side and the second layer of the first layer of the glass engagement plural layers with without etc. from Subprocessing and the one side of first layer engaged improves 20% or more compared with the engaging force between the second layer.
The plasma treatment of the surface treatment step can under the conditions of 30 to 50 DEG C of temperature with 5 to 10m/min into Roll-to-roll process go to complete.
Laminated glass according to still another embodiment of the invention includes above-mentioned glass engagement plural layers and glass Laminated body.Specifically, the laminated body may include the first glass and the second glass, first glass in the glass In the two sides of engagement plural layers with first layer share the plural layers outside it while connect, described Two glass connect with the another side of the plural layers.
The effect of invention
Glass engagement plural layers according to the present invention, the laminated glass including the glass engagement plural layers and its Manufacturing method is capable of providing glass engagement plural layers of following characteristic etc., these characteristics refer to: can by impact resistance, Resistance to connectivity, sound damping etc. are maintained at certain level or more and improve the inter-layer bonding force of plural layers, and can pass through Between the engaging force for reducing the interface between each layer in the engaging force and plural layers at the interface between plural layers and glass Difference come make sound insulation intermediate coat as the defects of frost flower phenomenon minimizes.
Detailed description of the invention
(a) of Fig. 1 is partially and the part (b) is respectively the layer for laminated glass for illustrating an embodiment according to the present invention The schematic diagram in the section of the specific embodiment of laminate film.
Fig. 2 and Fig. 3 is the schematic diagram for illustrating the method for the peel test executed in an embodiment of the present invention.
(a) of Fig. 4 partially just prepares laminated glass in the bubble test of the embodiment of the present invention to schematically show The case where figure of sample later, left side is schematically shows after bubble test qualified (Pass) in part (b) of Fig. 4 And right side is figure the case where schematically showing unqualified (Fail).
The explanation of appended drawing reference
100: plural layers are used in glass engagement
200: the first glass
300: first layer
400: the second layer
500: third layer
600: the second glass
700: laminated glass
800: attachment release film
850: insertion release film
Interface between A: the first glass and first layer
B: the interface between first layer and the second layer
C: the interface between the second layer and third layer
D: the interface between third layer and the second glass
Specific embodiment
In the following, the embodiment of the present invention is described in detail, so that those skilled in the art can be easily real Apply the present invention.But the present invention can be realized by various ways, however it is not limited to embodiment described herein.
About " about " and " actually " etc. used in all specifications as term relevant to degree, referring to Meaning in when proposing intrinsic foozle and material allowable error, with its error value or close to the meaning of its error value It uses, also, to prevent by helping to understand related accurate or absolute numerical value of the invention without improper use of good infringer Disclosure and use.
In all specifications, " a combination thereof " as the term for including in the description of Markush type refers to, from by Markush The more than one mixing or combination selected in the group of multiple constituent elements composition of type description, to indicate to include from by above-mentioned More than one selected in the group of multiple constituent element compositions.
In all specifications, the record of " A and/or B " refers to " A, B or A and B ".
In all specifications, unless otherwise indicated, such as " first ", " second " or " A ", " B " term are for will be identical Term be distinguished from each other.
In the present specification, " B is located on A " refers to that B is located on A in a manner of directly contacting with A, or refers to B in A and B Between clip and be located on A in the state of other layers, and be not limited to the meaning that B is located on A in such a way that the surface with A directly contacts Think.
In the present specification, unless otherwise indicated, singular expression may be interpreted as including the odd number interpreted from context or multiple Several meanings.
The inventors found that: glass engagement is configured to intermediate coat with more when in order to ensure sound insulation functionality When the glass engagement intermediate coat that layer is formed, surface (skin) layer and intermediate (core) layer generate difference on its engaging force, by There are problems that separating between the relatively low middle layer of engaging force and superficial layer when engaging glass in above-mentioned difference. To which the present inventor recognizes needs and compensates the defect as caused by the above problem (interlaminar separation, frost flower (ice )) etc. flower the necessity of the physical property for needing to be improved plural layers, and the present invention is completed by research repeatedly.
According to the present invention, by for being had differences in terms of the resin of polyacetal resin is copolymerized composition and plasticising dosage Superficial layer and middle layer using the hydroxy radical content for adjusting polyacetal resin and carry out additional surface treatment (oxygen plasma etc.) Deng method, increase the engaging force between superficial layer and middle layer to prevent interlaminar separation, to improve multilayer polyacetal films Durability.
In the present invention, reportedly in the sound insulation polyvinyl butyral film as representative multilayer polyacetal films Showing for air blister defect (the bubble defect) that is known as frost flower (ice flower, snowflake) occurs after engaging glass As this phenomenon is identified as produced nuclei of bubbles at any time by being grown into and expanding to wide region and generate more The layer distinctive defect of structural membrane confirmed that this defect more mostly occurs in table compared between glass and superficial layer by research Between surface layer and middle layer.
The present inventor is the reason of this phenomenon occurs for judgement: in the heterogeneous biggish feelings of the interlayer of multilayered structure Under condition, in the biggish situation of heterogeneity especially between interface, that is to say, that the engaging force between glass and superficial layer is big In the case where engaging force between superficial layer and surface layer, above-mentioned multilayered structure, which becomes, is easy to that heterogeneous structure occurs, by This nuclei of bubbles is generated and is grown in above-mentioned interface.Therefore, the present inventor following completes this hair by solving the problems, such as Bright, which refers to: viscosity is lower due to the characteristic of the middle layer with sound insulation value, therefore has there are nuclei of bubbles and once produce The problem of characteristic of growth is easy to after raw.
(a) of Fig. 1 is partially and the part (b) is to illustrate being used for for one embodiment of the invention for a part with section respectively The schematic diagram of the illustrative knot for the laminated glass that the plural layers of laminated glass are engaged with glass.Referring to Fig.1, to the present invention into Row is described in more detail.
The glass engagement plural layers 100 of an embodiment according to the present invention include: first layer 300, poly- comprising first Vinyl acetal resin and the first plasticizer, the first layer with the first glass 200 while directly connect;And second Layer 400, the one side of the second layer directly connects with the another side of the first layer, and includes the second polyvinyl acetal resin With the second plasticizer, wherein by between 180 degree peel test first glass 200 assessed and the first layer 300 The difference between engaging force between engaging force and the first layer 300 and the second layer 400 is equal to or less than 7Kgf/10mm.
Glass engagement plural layers 100 according to another embodiment of the present invention include: first layer 300, include first Polyvinyl acetal resin and the first plasticizer, the first layer with the first glass 200 while directly connect;And the Two layer 400, the one side of the second layer directly connects with the another side of the first layer, and includes the second Pioloform, polyvinyl acetal tree Rouge and the second plasticizer, wherein by between 180 degree peel test first glass 200 assessed and the first layer 300 Engaging force and the first layer 300 and the second layer 400 between engaging force between difference be equal to or less than 20%.
A feature of the present invention is, as follows in order to solve the problems, such as in the glass engagement in plural layers 100, The engaging force reduced between the A and the B is poor, wherein described problem refers to, by sound insulation plural layers included first The engaging force of interface A between glass 200 and first layer 300 is abundant, but in contrast to this between first layer 300 and the second layer 400 Interface B engaging force it is relatively low, so as to cause the problem of the part is easy to happen defect.
Specifically, the difference of the engaging force can be 0.1 to 7Kgf/10mm, 1 to 6Kgf/10mm, 2 to 5Kgf/10mm Or 4 to 5Kgf/10mm.The engaging force difference be equal to or less than 7Kgf/10mm when, due to interlayer engaging force difference relatively Defect that is small and can reducing multiple sound insulation film occurs, and is equal to or less than the feelings of 5Kgf/10mm with the difference of the engaging force Condition is more excellent compared to the effect for inhibiting defect to occur.
Specifically, the difference of the engaging force can be 20%, 0.01 to 20% or 1 to 15%.Such to have When characteristic mode forms plural layers, less plural layers that defect occurs can be prepared.
It carries out assessing the engagement on the basis of the end value of the 180 degree glass test illustrated in the following embodiments Power.Also, the difference refers to the absolute value for the value that A-B is obtained, and is worth situation more in general, A value is greater than B, but in the present invention Specific embodiment in the case where being not excluded in contrast.
The second layer 400 can contain more plasticizer compared with the first layer 300.
The first layer 300 can be used as the layer directly to connect with glass as surface layer.The second layer 400 is used as puigging Or sandwich layer can be used as glass engagement together with one or more surface layer and play sound damping with intermediate coat, and therefore, institute It states first layer 300 and the second layer 400 and uses the polyvinyl acetal resin with different characteristics, and the content of plasticizer respectively It is different from each other.
Specifically, include the plasticizer in the first layer 300 content by the first layer it is all on the basis of can Think and is less than 30wt%, 20 to 30wt% or 25 to 30wt%.Specifically, including the plasticizer in the second layer 400 Content can be for equal to or more than 32wt%, 32 to 40wt% or 34 to 38wt% on the basis of the second layer.When comprising When plasticizer in above-mentioned content range, it can provide and the machine performance of resistance to connectivity, resistance to permeability etc. is maintained at certain water Film flat above and with sound damping.
The plasticizer can selected from by the double 2 ethyl hexanoic acid ester (3G8) of triethylene glycol, tetraethylene glycol diheptanoate (4G7), The double 2 Ethylbutanoic acid esters (3GH) of triethylene glycol, triethylene glycol double 2- heptanoates (3G7), di butoxyethoxyethyl adipate (DBEA), butyl carbitol adipate ester (DBEEA), dibutyl sebacate (DBS), the own ester of two 2- of adipic acid (DHA) and its mixed In the group for closing object composition, specifically, compatibility between resin, keep film in terms of it is preferable to use Selected from by the double 2 ethyl hexanoic acid ester (3G8) of triethylene glycol, the double 2 Ethylbutanoic acid esters (3GH) of triethylene glycol, triethylene glycol double 2- heptan One of the group of acid esters (3G7) and combinations thereof composition.
The hydroxy radical content of first polyvinyl acetal resin can be equal to or more than 30mol%, and acetyl content 2mol% can be less than.Specifically, the hydroxy radical content of first polyvinyl acetal resin can be 30 to 50mol%. When resin with the above characteristics is used as first polyvinyl acetal resin, the engagement between glass can be prepared The first layer that power is good and machine performance is excellent.
The hydroxy radical content of second polyvinyl acetal resin can be equal to or less than 40mol%, be equal to or less than 30mol% or 1 to 30mol% can also be equal to or less than 10mol%.Also, the second of second polyvinyl acetal resin Acyl group content can be equal to or more than 8mol%.When by resin with the above characteristics be used as the second Pioloform, polyvinyl acetal tree When rouge, it can prepare and machine performance is maintained at certain level or more and with the second layer of excellent sound damping.
The hydroxyl of the hydroxy radical content of second polyvinyl acetal resin and first polyvinyl acetal resin contains Difference between amount can be for equal to or more than 2mol%, 1 to 15mol% or 5 to 15mol%.In this case, it is possible to glass Engagement assigns more good sound insulation value with plural layers.
The polyvinyl acetal resin can be to be carried out by the polyvinyl alcohol that is 1600 to 3000 to the degree of polymerization with aldehyde Polyvinyl acetal resin obtained from acetalation.The aldehyde is not particularly limited.For example, the aldehyde can be selected from by positive fourth In the group that aldehyde, isobutylaldehyde, positive bucket aldehyde, 2- ethyl butyraldehyde, n-hexyl aldehyde and its hybrid resin form.Specifically, due to n-butanal It is excellent come the small and engaging force with glass of the refringence between the resin and glass that prepare, therefore it is preferable to use n-butanals to make Standby resin.
Interface B between the first layer 300 and the second layer 400 can be by with 400 phase of the second layer The first layer 300 connect or with after the while carry out plasma treatment of the second layer 400 that connects of the first layer 300 Made of engagement.The plasma treatment can make the first layer 300 or the second layer 400 while surface Functional group's activation, thus, with without being surface-treated the case where differently can sufficiently improve interlayer engaging force.
Normal-pressure plasma device can be used to carry out in the plasma treatment, specifically, can by with During the composition for preparing each layer carries out melting extrusion respectively and squeezes out lamination can to each layer carry out on one side etc. from The method of the normal-pressure plasma device of daughter surface treatment carries out.
Specifically, the plasma treatment can use atmospheric plasma, oxygen plasma can also be used.
The plasma treatment can carry out roll-to-roll process under the conditions of 30 to 50 DEG C of temperature with 5 to 10m/min (Roll to Roll) is completed.Pressure condition can be condition of normal pressure.When carrying out the plasma treatment by above-mentioned condition When, the mechanical strength of each layer itself can be maintained at certain level or more and sound insulation value is maintained at certain level or more, Interlayer engaging force can be improved simultaneously.
The plasma treatment can carry out under 10 to 15Kv application voltage conditions.Applying the electricity in above range When pressure, inter-layer bonding force improvement effect is not only obtained, while being conducive to keep the mechanical strength characteristic of each layer and improving processing effect Rate.
The bonding force value between the first layer 300 and the second layer 400 assessed by 180 degree peel test can be with It is 25 to 40Kgf/10mm, 25 to 33Kgf/10mm or 34 to 40Kgf/10mm.Preferably, the engaging force can for 32 to 38Kgf/10mm。
When the engaging force between the first layer 300 and the second layer 400 within the above range when, with without it is equal from Daughter surface treatment etc. is described come compared with not improving the first layer 300 with the engaging force between the second layer 400 the case where Engaging force improves about 20% or more, specifically, improving 20 to 120%, therefore, sound insulation multi-layer thin can be significantly reduced The defects of air bubble growth of film, occurs.
It can by the bonding force value between 180 degree peel test first glass 200 assessed and the first layer 300 Think 30 to 45Kgf/10mm or 30 to 40Kgf/10mm.
The glass engagement is placed at 50 DEG C of temperature and 20% relative humidities with plural layers 100 24 hours it Afterwards, it forms the hole 8mm and forms laminated glass 700, then, after being placed 24 hours in 85 DEG C of baking ovens, observe in the hole The size of the bubble of periphery growth, result can satisfy bubble with the condition of the 200% of hole range growth below.By This, can sufficiently inhibit the phenomenon that the generation of the frost flower phenomenon of one of reported defect of sound insulation plural layers, so as to Plural layers are used in the glass engagement for providing more better quality.
The glass engagement plural layers 100 may also include third layer, the one side of the third layer and the second layer 400 directly connect and its another side directly connects with the second glass 600, and the third layer includes third Pioloform, polyvinyl acetal tree Rouge and third plasticizer.
Pass through engaging force between 180 degree peel test second glass 600 assessed and the third layer 500 and institute 7Kgf/10mm can be equal to or less than by stating the difference between the engaging force between the second layer 400 and the third layer 500.
The third layer 500 can have composition actually identical with the first layer 300 and characteristic.Therefore, because Its record is omitted with about the illustrating to repeat of first layer 300 about illustrating for the third layer 500.Also, about institute State the interface C between the second layer 400 and third layer 500 and the interface between the third layer 500 and second glass 600 The explanation of D, also with as described above about the explanation of the interface A between first glass 200 and first layer 300 and about Interface B's between the first layer 300 and the second layer 400 illustrates to repeat respectively, therefore omits its record.
The loss coefficient (L/F) of glass engagement plural layers 100 measured under 20 DEG C and 2000Hz can wait In or greater than 0.35.
The glass engagement plural layers 100 can satisfy the impact resistance characteristic based on KS L 2007:2008.
The glass engagement plural layers 100 can satisfy the resistance to connectivity characteristic based on KS L 2007.
The glass engagement plural layers can further include selected from by antioxidant, heat stabilizer, UV absorbent, Additive in the group of UV stabilizer, IR absorbent, glass engaging force regulator and combinations thereof composition.
The additive may be embodied in the first layer, the second layer, at least one layer of in third layer and the 4th layer.Pass through packet The long durabilities such as thermal stability, the photostability of film, which can be improved, and disperse containing the additive prevents performance.
Hindered amine (hindered amine) class or hindered phenol (hindered phenol) can be used in the antioxidant Class.Specifically, from the perspective of polyvinyl butyral (PVB) preparation section for the process temperature for needing 150 DEG C or more, More preferably use hindered phenol anti-oxidants.For example, BASF (BASF) company can be used in hindered phenol anti-oxidants IRGANOX 1076,1010 etc..
In view of the compatibility with antioxidant, phosphite ester (phosphite) class heat is can be used in the heat stabilizer Stabilizer.It is, for example, possible to use the IRGAFOS 168 of BASF AG.
The UV absorbent can be used CHEMIPRO be melted into the Chemisorb 12 of Co., Ltd., Chemisolve 79, Tinuvin 328, Tinuvin 329, the Tinuvin 326 of Chemisolve 74, Chemisolve 102 and BASF AG Deng.The Tinuvin etc. of BASF AG can be used in the UV stabilizer.ITO, ATO, AZO can be used in the IR absorbent Or mixtures thereof the metal salts such as Mg, K, Na, epoxy modified polysiloxane etc., but the present invention can be used Deng, glass engaging force regulator It is without being limited thereto.
Glass engagement plural layers 100 according to another embodiment of the present invention may include: first layer 300, include First polyvinyl acetal resin and the first plasticizer, the first layer with the first glass 200 while directly connect; And the second layer 400, the one side of the second layer directly connect with the another side of the first layer, and include the contracting of the second polyvinyl alcohol Urea formaldehyde and the second plasticizer, wherein pass through described the of the glass engagement plural layers that 180 degree peel test is assessed The engaging force of B has the engaging force increase rate value equal to or more than 20% between one layer of one side and the second layer, described to connect Resultant force increase rate value indicates the engaging force phase between the one side and the second layer of the first layer engaged with without plasma treatment Degree than the engaging force improved.
Specifically, the engaging force increase rate can be calculated by following formula 1.
[formula 1]
Engaging force increase rate (%)=100 × [| P1-2-N1-2|/N1-2]
In the formula 1, P1-2Refer to the engaging force between the first layer and the second layer by plasma treatment, and N1-2It is Refer to without the engaging force between the first layer and the second layer of plasma treatment.
The engaging force is on the basis of the value (unit, Kgf/10mm) that is obtained in the present invention by 180 degree peel test It is assessed.
A feature of the present invention is, as follows in order to solve the problems, such as in the glass engagement in plural layers 100, Further increase the engaging force between the A and the B, wherein described problem refers to, since sound insulation plural layers are included The engaging force of interface A between first glass 200 and first layer 300 is abundant, but first layer 300 and the second layer 400 in contrast to this Between interface B engaging force it is relatively low, so as to cause the part defect frequent occurrence the problem of,.
Specifically, the engaging force increase rate value can be 20 to 120%, 20 to 90% or 25 to 80%.To have When having the film of the engaging force increase rate value in above range to be used as the intermediate coat for laminated glass, can provide will be resistance to The characteristics such as connectivity, impact resistance and sound damping are maintained at certain level or more and reduce the generation such as the defects of frost flower phenomenon Plural layers.
The second layer 400 can have more plasticizer compared with the first layer 300.
The first layer 300 can be used as the layer directly to connect with glass as surface layer.The second layer 400 is used as puigging Or sandwich layer can be used as glass engagement together with one or more surface layer and play sound damping with intermediate coat, and therefore, institute It states first layer 300 and the second layer 400 and uses the polyvinyl acetal resin with different characteristics, and the content of plasticizer respectively It is different from each other.
Specifically, including that the content of the plasticizer in the first layer 300 can on the basis of the first layer premise Think and is less than 30wt%, 20 to 30wt% or 25 to 30wt%.Specifically, including the plasticizer in the second layer 400 Content can be for equal to or more than 32wt%, 32 to 40wt% or 34 to 38wt% on the basis of the second layer.When comprising When plasticizer in above-mentioned content range, it can provide and the machine performance of resistance to connectivity, resistance to permeability etc. is maintained at certain water Film flat above and with sound damping.
The plasticizer can selected from by the double 2 ethyl hexanoic acid ester (3G8) of triethylene glycol, tetraethylene glycol diheptanoate (4G7), The double 2 Ethylbutanoic acid esters (3GH) of triethylene glycol, triethylene glycol double 2- heptanoates (3G7), di butoxyethoxyethyl adipate (DBEA), butyl carbitol adipate ester (DBEEA), dibutyl sebacate (DBS), the own ester of two 2- of adipic acid (DHA) and its mixed In the group for closing object composition, specifically, compatibility between resin, keep film in terms of it is preferable to use Selected from by the double 2 ethyl hexanoic acid ester (3G8) of triethylene glycol, the double 2 Ethylbutanoic acid esters (3GH) of triethylene glycol, triethylene glycol double 2- heptan One of the group of acid esters (3G7) and combinations thereof composition.
The hydroxy radical content of first polyvinyl acetal resin can be equal to or more than 30mol%, and acetyl content 2mol% can be less than.When resin with the above characteristics is used as first polyvinyl acetal resin, can prepare The first layer that engaging force between glass is good and machine performance is excellent.
The hydroxy radical content of second polyvinyl acetal resin can be equal to or less than 10mol%, and acetyl content 8mol% can be less than.When resin with the above characteristics is used as second polyvinyl acetal resin, can prepare Machine performance is maintained at certain level or more and the good second layer of sound insulation value.
The polyvinyl acetal resin can be to be carried out by the polyvinyl alcohol that is 1600 to 3000 to the degree of polymerization with aldehyde Polyvinyl acetal resin obtained from acetalation.The aldehyde is not particularly limited.For example, the aldehyde can be selected from by positive fourth In the group that aldehyde, isobutylaldehyde, positive bucket aldehyde, 2- ethyl butyraldehyde, n-hexyl aldehyde and its hybrid resin form.Specifically, due to n-butanal It is excellent come the smaller and engaging force with glass of the refringence between the resin and glass that prepare, therefore it is preferable to use n-butanals to come The resin of preparation.
Interface B between the first layer 300 and the second layer 400 can be by with 400 phase of the second layer The first layer 300 connect or with after the while carry out plasma treatment of the second layer 400 that connects of the first layer 300 Made of engagement.The plasma treatment can make the first layer 300 or the second layer 400 while surface Functional group's activation, thus, with without being surface-treated the case where differently can sufficiently improve interlayer engaging force.
Normal-pressure plasma device can be used to carry out in the plasma treatment, specifically, can by with During the composition for preparing each layer carries out melting extrusion respectively and squeezes out lamination can to each layer carry out on one side etc. from The method of the normal-pressure plasma device of daughter surface treatment carries out.
Specifically, the plasma treatment can use atmospheric plasma, oxygen plasma can also be used.
The plasma treatment can carry out roll-to-roll process under the conditions of 30 to 50 DEG C of temperature with 5 to 10m/min and come It completes.Pressure condition can be condition of normal pressure.It, can be by each layer itself when carrying out the plasma treatment by above-mentioned condition Mechanical strength be maintained at certain level or more and sound insulation value be maintained at certain level or more, while interlayer can be improved and connect With joint efforts.
The plasma treatment can carry out under 10 to 15Kv application voltage conditions.Applying the electricity in above range When pressure, inter-layer bonding force improvement effect is not only obtained, while being conducive to keep the mechanical strength characteristic of each layer and improving processing effect Rate.
The bonding force value between the first layer 300 and the second layer 400 assessed by 180 degree peel test can be with It is 25 to 40Kgf/10mm, 25 to 33Kgf/10mm or 34 to 40Kgf/10mm.Preferably, the engaging force can for 32 to 38Kgf/10mm。
When the engaging force between the first layer 300 and the second layer 400 within the above range when, shelled by 180 degree Between the engaging force and the first layer and the second layer between first glass and the first layer from test assessment Engaging force between difference can be equal to or less than 7Kgf/10mm, 0.1 to 7Kgf/10mm, 1 to 6Kgf/10mm or 2 to 5Kgf/ 10mm.When difference in this way between interlayer engaging force is reduced, the defects of air bubble growth of sound insulation plural layers can be significantly reduced Generation.
It can by the bonding force value between 180 degree peel test first glass 200 assessed and the first layer 300 Think 30 to 45Kgf/10mm or 30 to 40Kgf/10mm.
The glass engagement is placed at 50 DEG C of temperature and 20% relative humidities with plural layers 100 24 hours it Afterwards, it forms the hole 8mm and forms laminated glass, then, after being placed 24 hours in 85 DEG C of baking ovens, observe on the hole periphery The size of the bubble of growth, result can satisfy bubble with the condition of the 200% of hole range growth below.As a result, It can inhibit the phenomenon that the generation of the frost flower phenomenon of one of reported defect of sound insulation plural layers, sufficiently so as to provide Plural layers are used in the glass engagement of more better quality.
The glass engagement plural layers 100 may also include third layer, the one side of the third layer and the second layer 400 directly connect and its another side directly connects with the second glass 600, and the third layer includes third Pioloform, polyvinyl acetal tree Rouge and third plasticizer.
Pass through engaging force between 180 degree peel test second glass 600 assessed and the third layer 500 and institute 7Kgf/10mm can be equal to or less than by stating the difference between the engaging force between the second layer 400 and the third layer 500.
The third layer 500 can have composition actually identical with the first layer 300 and characteristic.Therefore, because Its record is omitted with about the illustrating to repeat of first layer 300 about illustrating for the third layer 500.Also, about institute State the interface C between the second layer 400 and third layer 500 and the interface between the third layer 500 and second glass 600 The explanation of D, also with as described above about the explanation of the interface A between first glass 200 and first layer 300 and about Interface B's between the first layer 300 and the second layer 400 illustrates to repeat respectively, therefore omits its record.
The loss coefficient (L/F) of glass engagement plural layers 100 measured under 20 DEG C and 2000Hz can wait In or greater than 0.35.
The glass engagement plural layers 100 can satisfy the impact resistance characteristic based on KS L 2007:2008.
The glass engagement plural layers 100 can satisfy the resistance to connectivity characteristic based on KS L 2007.
The glass engagement plural layers can further include selected from by antioxidant, heat stabilizer, UV absorbent, Additive in the group of UV stabilizer, IR absorbent, glass engaging force regulator and combinations thereof composition.Due to about each addition Illustrating for agent illustrates to repeat with above, therefore omits its record.
The preparation method of plural layers according to still another embodiment of the invention includes: extrusion step, will be gathered comprising first The first layer formation of vinyl acetal resin and the first plasticizer puts into the first extruder with composition, will include the second poly- second The second layer formation of enol acetal resin and the second plasticizer puts into the second extruder with composition, to squeeze out first layer 300 and the second layer 400;Surface treatment step, to the first layer 300 or the second layer 400 while carry out etc. Ion processing forms surface treated one side;And Stacking steps, extrusion lamination is carried out, so that in the first layer 300 With Jing Guo the surface treatment step in the second layer 400 one layer of surface treated one side with another layer without Spend connecting on one side for surface treatment.
By the preparation method can prepare first glass 200 assessed by 180 degree peel test with it is described The difference between the engaging force between engaging force and the first layer 300 and the second layer 400 between first layer 300 be equal to or Glass engagement plural layers less than 7Kgf/10mm.
Normal-pressure plasma device can be used to carry out in the plasma treatment, specifically, can by with During the composition for preparing each layer carries out melting extrusion respectively and squeezes out lamination can to each layer carry out on one side etc. from The method of the normal-pressure plasma device of daughter surface treatment carries out.
Specifically, the plasma treatment can use atmospheric plasma, oxygen plasma can also be used.
The plasma treatment can carry out roll-to-roll process under the conditions of 30 to 50 DEG C of temperature with 5 to 10m/min and come It completes.Pressure condition can be condition of normal pressure.It, can be by each layer itself when carrying out the plasma treatment by above-mentioned condition Mechanical strength be maintained at certain level or more and sound insulation value be maintained at certain level or more, while interlayer can be improved and connect With joint efforts.
The plasma treatment can carry out under 10 to 15Kv application voltage conditions.Applying the electricity in above range When pressure, inter-layer bonding force improvement effect is not only obtained, while being conducive to keep the mechanical strength characteristic of each layer and improving processing effect Rate.
About glass engagement plural layers 100, first layer 300, the second layer 400, additional third layer 500, each layer The particular content of ingredient, the characteristic at interface, the characteristic of the plural layers etc. illustrates to repeat with above, therefore omits its note It carries.
Also, about the interface C and the third layer 500 and described between the second layer 400 and third layer 500 The explanation of interface D between two glass 600, also and as described above about between first glass 200 and first layer 300 The explanation of interface A and illustrate to repeat respectively about the interface B between the first layer 300 and the second layer 400, therefore Omit its record.
The preparation method of plural layers 100 according to still another embodiment of the invention includes: extrusion step, will include first The first layer formation of polyvinyl acetal resin and the first plasticizer puts into the first extruder with composition, will gather comprising second The second layer formation of vinyl acetal resin and the second plasticizer puts into the second extruder with composition, to squeeze out first layer 300 and the second layer 400;Surface treatment step, to the first layer 300 or the second layer 400 while carry out etc. Ion processing forms surface treated one side;And Stacking steps, extrusion lamination is carried out, so that in the first layer 300 With Jing Guo the surface treatment step in the second layer 400 one layer of surface treated one side with another layer without Spend connecting on one side for surface treatment.
Following glass engagement plural layers can be prepared by the preparation method, that is, pass through 180 degree peel test Engagement between the one side and the second layer 400 of the first layer 300 of the glass engagement plural layers 100 of assessment Power has the engaging force increase rate value equal to or more than 20%, and the engaging force increase rate value indicates and without plasma treatment And the degree for the engaging force that the one side of the first layer 300 engaged is improved compared with the engaging force between the second layer 400.
Normal-pressure plasma device can be used to carry out in the plasma treatment, specifically, can by with During the composition for preparing each layer carries out melting extrusion respectively and squeezes out lamination can to each layer carry out on one side etc. from The method of the normal-pressure plasma device of daughter surface treatment carries out.
Specifically, the plasma treatment can use atmospheric plasma, oxygen plasma can also be used.
The plasma treatment can carry out roll-to-roll process under the conditions of 30 to 50 DEG C of temperature with 5 to 10m/min and come It completes.Pressure condition can be condition of normal pressure.It, can be by each layer itself when carrying out the plasma treatment by above-mentioned condition Mechanical strength be maintained at certain level or more and sound insulation value be maintained at certain level or more, while interlayer can be improved and connect With joint efforts.
The plasma treatment can carry out under 10 to 15Kv application voltage conditions.Applying the electricity in above range When pressure, inter-layer bonding force improvement effect is not only obtained, while being conducive to keep the mechanical strength characteristic of each layer and improving processing effect Rate.
Due to about glass engagement plural layers 100, first layer 300, the second layer 400, additional third layer 500, each The ingredient of layer, the particular content of characteristic, the characteristic of the plural layers etc. at interface illustrate to repeat, therefore omit it with above It records.
Laminated glass 700 according to still another embodiment of the invention includes that plural layers are used in glass as described above engagement 100 with the laminated body of glass 200,600.Specifically, the laminated body may include the first glass 200 and the second glass 600, First glass 200 with shared outside it in the glass engagement with the one side in the two sides of plural layers 100 with first layer 300 The plural layers on surface connect on one side, and second glass 600 connects with the another side of the plural layers.
In the following, a specific embodiment of the invention is described in more detail.
Preparation example
(preparation of polyvinyl butyral resin)
The preparation of polyvinyl butyral resin (a): the polyvinyl alcohol resin for being 1700 to average degree of polymerization synthesizes positive fourth Aldehyde, obtain butyral base content be 69.1mol%, the polyvinyl butyral resin (a) that hydroxy radical content is 30.1mol%.
The preparation of polyvinyl butyral resin (b): the polyvinyl alcohol resin for being 2400 to average degree of polymerization synthesizes positive fourth Aldehyde, obtain butyral base content be 59.2mol%, the polyvinyl butyral resin (b) that hydroxy radical content is 28.8mol%.
The preparation of polyvinyl butyral resin (c): the polyvinyl alcohol resin for being 1700 to average degree of polymerization synthesizes positive fourth Aldehyde, obtain butyral base content be 58.7mol%, the polyvinyl butyral resin (c) that hydroxy radical content is 40.5mol%.
The preparation of polyvinyl butyral resin (d): the polyvinyl alcohol resin for being 2400 to average degree of polymerization synthesizes positive fourth Aldehyde, obtain butyral base content be 65.2mol%, the polyvinyl butyral resin (d) that hydroxy radical content is 20.4mol%.
The preparation of polyvinyl butyral resin (e): the polyvinyl alcohol resin for being 2400 to average degree of polymerization synthesizes positive fourth Aldehyde, obtain butyral base content be 48.9mol%, the polyvinyl butyral resin (e) that hydroxy radical content is 39.1mol%.
(compositions of additives)
Mix the irganox1010 of 0.1 parts by weight, the irgafos168 of 0.1 parts by weight, 0.3 parts by weight TINUVIN P, the potassium acetate of 0.022 parts by weight and the magnesium acetate of 0.028 parts by weight prepare the compositions of additives of 0.55 parts by weight.
(prepared by the plural layers of embodiment 1)
Put into the polyvinyl butyral resin (a) of 72.45 parts by weight, the plasticizer 3G8 of 27 parts by weight and 0.55 weight Part compositions of additives and mixing, then by double screw extruder extrude prepare with a thickness of 0.33mm first layer.It is logical It crosses roll-to-roll normal-pressure plasma device and carries out oxygen plasma treatment on the side of prepared first layer to prepare process The first layer of surface treatment.The plasma device condition is using 40 DEG C of temperature, the application of the speed of 10m/min and 14kV Voltage.
The plasticizer 3G8 of the polyvinyl butyral resin (b) and 35 parts by weight that mix 65 parts by weight throws mixture Enter to double screw extruder, to prepare the second layer with a thickness of 0.12mm, so that the second layer is located at the warp of the first layer The mode crossed in the one side of plasma treatment carries out extrusion lamination, so that preparation has first layer/second layer double-layer structure Plural layers (part (a) referring to Fig.1).
Volume pair is used to the one side of the exposure of the second layer in the plural layers with first layer/second layer double-layer structure It rolls up normal-pressure plasma device and carries out oxygen plasma treatment, the one side to prepare the second layer is surface treated to have first The plural layers (part (b) referring to Fig.1) of the double-layer structure of the layer/second layer.At this point, the plasma device condition uses The application voltage of 40 DEG C of temperature, the speed of 10m/min and 14kV.
Mix the polyvinyl butyral resin (a) of 72.45 parts by weight, the plasticizer 3G8 of 27 parts by weight and 0.55 weight Then the compositions of additives of part squeezes out the third layer being laminated into a thickness of 0.33mm by double screw extruder, to prepare With the first layer/second layer/third layer three-decker plural layers.The multilayer with three-decker prepared as described above The overall thickness of film is 0.78mm.
(prepared by the plural layers of comparative example 1)
Other than without plasma surface treatment, with the embodiment 1 it is identical form and method preparation With the first layer/second layer/third layer three-decker plural layers.At this point, the thickness of each layer is as follows, that is, first layer With a thickness of 0.33mm, third layer with a thickness of 0.33mm, the second layer with a thickness of 0.12mm, and the overall thickness of plural layers is 0.78mm。
(prepared by the plural layers of embodiment 2)
Put into the polyvinyl butyral resin (c) of 72.45 parts by weight, the plasticizer 3G8 of 27 parts by weight and 0.55 weight Part compositions of additives and mixing, then by double screw extruder extrude prepare with a thickness of 0.33mm the first film. Oxygen plasma treatment is carried out on the side of prepared the first film by roll-to-roll normal-pressure plasma device to prepare Surface treated first layer.The plasma device condition is using 40 DEG C of temperature, the speed of 10m/min and 14kV Apply voltage.
The plasticizer 3G8 of the polyvinyl butyral resin (d) and 35 parts by weight that mix 65 parts by weight throws mixture Enter to double screw extruder, to prepare the second layer with a thickness of 0.12mm, so that the second layer is located at the warp of the first layer The mode crossed in the one side of plasma treatment carries out extrusion lamination, so that preparation has first layer/second layer double-layer structure Plural layers.
To the one side of the exposure of the second layer in the plural layers with first layer/second layer double-layer structure with roll-to-roll Normal-pressure plasma device carries out oxygen plasma treatment, and the one side to prepare the second layer is surface treated to have first The plural layers of the double-layer structure of the layer/second layer.At this point, the plasma device condition uses 40 DEG C of temperature, 10m/min Speed and 14kV application voltage.
Mix the polyvinyl butyral resin (c) of 72.45 parts by weight, the plasticizer 3G8 of 27 parts by weight and 0.55 weight Then the compositions of additives of part squeezes out the third layer being laminated into a thickness of 0.33mm by double screw extruder, to prepare With the first layer/second layer/third layer three-decker plural layers.The multilayer with three-decker prepared as described above The overall thickness of film is 0.78mm.
(prepared by the plural layers of comparative example 2)
Other than without plasma surface treatment, with the embodiment 2 it is identical form and method preparation With the first layer/second layer/third layer three-decker plural layers.At this point, the thickness of each layer is as follows, that is, first layer With a thickness of 0.33mm, third layer with a thickness of 0.33mm, the second layer with a thickness of 0.12mm, and the overall thickness of plural layers is 0.78mm。
(prepared by the plural layers of embodiment 3)
Put into the polyvinyl butyral resin (a) of 72.45 parts by weight, the plasticizer 3G8 of 27 parts by weight and 0.55 weight Part compositions of additives and mixing, then by double screw extruder extrude prepare with a thickness of 0.33mm first layer.It is logical It crosses roll-to-roll normal-pressure plasma device and carries out oxygen plasma treatment on the side of prepared first layer to prepare process The first layer of surface treatment.The plasma device condition is using 40 DEG C of temperature, the application of the speed of 10m/min and 14kV Voltage.
The plasticizer 3G8 of the polyvinyl butyral resin (d) and 35 parts by weight that mix 65 parts by weight throws mixture Enter to double screw extruder, to prepare the second layer with a thickness of 0.12mm, so that the second layer is located at the warp of the first layer The mode crossed in the one side of plasma treatment carries out extrusion lamination, so that preparation has first layer/second layer double-layer structure Plural layers.
Volume pair is utilized to the one side of the exposure of the second layer in the plural layers with first layer/second layer double-layer structure It rolls up normal-pressure plasma device and carries out oxygen plasma treatment, the one side to prepare the second layer is surface treated to have first The plural layers of the double-layer structure of the layer/second layer.At this point, the plasma device condition uses 40 DEG C of temperature, 10m/min Speed and 14kV application voltage.
Mix the polyvinyl butyral resin (a) of 72.45 parts by weight, the plasticizer 3G8 of 27 parts by weight and 0.55 weight Then the compositions of additives of part squeezes out the third layer being laminated into a thickness of 0.33mm by double screw extruder, to prepare With the first layer/second layer/third layer three-decker plural layers.The multilayer with three-decker prepared as described above The overall thickness of film is 0.78mm.
(prepared by the plural layers of comparative example 3)
Other than without plasma surface treatment, with the embodiment 3 it is identical form and method preparation With the first layer/second layer/third layer three-decker plural layers.At this point, the thickness of each layer is as follows, that is, first layer With a thickness of 0.33mm, third layer with a thickness of 0.33mm, the second layer with a thickness of 0.12mm, and the overall thickness of plural layers is 0.78mm。
(prepared by the plural layers of embodiment 4)
Put into the polyvinyl butyral resin (c) of 72.45 parts by weight, the plasticizer 3G8 of 27 parts by weight and 0.55 weight Part compositions of additives and mixing, then by double screw extruder extrude prepare with a thickness of 0.33mm first layer.It is logical It crosses roll-to-roll normal-pressure plasma device and carries out oxygen plasma treatment on the side of prepared first layer to prepare process The first layer of surface treatment.The plasma device condition is using 40 DEG C of temperature, the application of the speed of 10m/min and 14kV Voltage.
The plasticizer 3G8 of the polyvinyl butyral resin (e) and 35 parts by weight that mix 65 parts by weight throws mixture Enter to double screw extruder, to prepare the second layer with a thickness of 0.12mm, so that the second layer is located at the warp of the first layer The mode crossed in the one side of plasma treatment carries out extrusion lamination, so that preparation has first layer/second layer double-layer structure Plural layers.
Volume pair is utilized to the one side of the exposure of the second layer in the plural layers with first layer/second layer double-layer structure It rolls up normal-pressure plasma device and carries out oxygen plasma treatment, the one side to prepare the second layer is surface treated to have first The plural layers of the double-layer structure of the layer/second layer.At this point, the plasma device condition uses 40 DEG C of temperature, 10m/min Speed and 14kV application voltage.
Mix the polyvinyl butyral resin (c) of 72.45 parts by weight, the plasticizer 3G8 of 27 parts by weight and 0.55 weight Then the compositions of additives of part squeezes out the third layer being laminated into a thickness of 0.33mm by double screw extruder, to prepare With the first layer/second layer/third layer three-decker plural layers.The multilayer with three-decker prepared as described above The overall thickness of film is 0.78mm.
(prepared by the plural layers of embodiment 5)
Other than without plasma surface treatment, with the embodiment 4 it is identical form and method preparation With the first layer/second layer/third layer three-decker plural layers.At this point, the thickness of each layer is as follows, that is, first layer With a thickness of 0.33mm, third layer with a thickness of 0.33mm, the second layer with a thickness of 0.12mm, and the overall thickness of plural layers is 0.78mm。
The type and content of polyvinyl butyral (PVB) resin applied to each layer, plasticizer are summarized in the following table 1 Content, thickness of each layer etc..
[table 1]
Physical property appraisal procedure
Engaging force measures (180 degree peel test (peel test))
Illustrate engaging force measuring method referring to Fig. 2 and Fig. 3.
The plural layers of the embodiment and comparative example are placed 24 hours in the environment of 50 DEG C and 20% relative humidity Afterwards, plural layers are cut to make width × length × thickness become 150 × 100 × 2.1mm, thus sample of the preparation for assessment Product.The sample so prepared is placed on width × length × with a thickness of on the first glass plate of 150 × 100 × 2.1mm, and And as measurement auxiliary substrate, on first glass plate place as adhere to release film 800 primary coat width × Length × with a thickness of the PET film (being manufactured by SKC Co., Ltd) of 150 × 250 × 0.188mm.
1) the engagement force estimation at the interface (A) of the first glass-first layer
It is between the first glass and first layer, the longitudinal direction of 50 μm of insertion release film 850 from first glass is last End is inserted into the position at 20mm, and is applicable in as the starting point for making peel test.
The test being laminated as described above is put into vacuum laminator with sample, is engaged in advance under 150 DEG C and 1 atmospheric pressure 20 seconds, main engagement is then carried out in autoclave.The condition of main engagement is the heating until rising to 140 DEG C from room temperature Time is 25 minutes, and the retention time is 25 minutes at 140 DEG C.Peeling tester uses the universal test of QMESYS joint-stock company The QM100S model of machine (UTM, universal testing machine).
As above the test sample engaged is cut with 10mm width interval to longitudinal from the point of 15mm from both-side ends It cuts, test sample is thus made.Hereafter, the insertion release film 850 is removed.
By the first glass end of prepared test sample and the plural layers for being bonded to attachment release film 800 The angle that end keeps that it is made to keep 180 degree respectively using UTM retainer, and with the load of 50kgf with 300mm/min's Rate carries out peel test.Measurement is removed after separating plural layers and the first glass to 70mm, is then terminated.
It is measuring in this way the result is that will terminate from measurement starting point by the point of 20mm as starting point and as described above Point is terminal come the average interface (A) as the first glass-first layer of the engaging force measured in the range of calculating during this period Engaging force indicate.Such measurement repeats more than three times, and its average value is expressed as end value.
2) the engagement force estimation of first layer-second layer interface (B)
The interface between the first layer and the second layer of prepared plural layers is grasped and separated to ensure for making 50 μm of insertion release film 850, is then inserted by the area that release film enters from the longitudinal end of first glass Position at 20mm, and be applicable in as the starting point for making peel test.
By with above 1) in it is identical in a manner of assess the engaging force of sample produced above.
Bubble test
The plural layers of the embodiment and comparative example are placed 24 hours in the environment of 50 DEG C and 20% relative humidity Afterwards, plural layers are cut to make width × length become 100 × 100mm, then in the hole that one diameter of centre drill is 8mm.
Above-mentioned film is placed between the glass for the two panels 2.1mm thickness for being cut into identical size, and with same as described above Mode is engaged in advance and main engagement is come to prepare laminated glass.
The laminated glass prepared as described above is placed in 85 DEG C of baking ovens after 24 hours, whether observation bubble grows.It will In addition to its external periphery of the 8mm as initial aperture is the same as to be equal to or less than 200% dimensional growth bubble compared with original The case where be expressed as qualification, will be to be expressed as unqualified (figure with to be greater than 200% dimensional growth bubble compared with original the case where Left side shows qualification in 4 part (b), and right side shows unqualified).
Sound-proofing assessment
Each plural layers of embodiment and comparative example are cut into the size that length is 30cm, width is 2.5cm, by cutting Plural layers are clipped in two transparency glass plates (length 30cm, width 2.5cm, with a thickness of 2.1cm), to obtain laminated glass Glass.Laminated glass is placed in rubber bag, and at the deaerated under vacuum of 2.6KPa 20 minutes, it then, will in the state of degassing Laminated glass is transferred in baking oven, is further kept for laminated glass 30 minutes at 90 DEG C, with vacuum press to laminated glass into Row pre-extrusion.By precompressed laminated glass squeezes at 140 DEG C of temperature and the pressure condition of 1.2MPa in autoclave Pressure 20 minutes, to obtain the laminated glass for measuring sound-proofing.
In order to obtain stable sound insulation value, curing (aging) 72 hours in the chamber of 20 DEG C and 20% relative humidity More than, then assess the sound insulation value of laminated glass.
Laminated glass is applied by the vibration machine for toppling over test and is vibrated, thus obtained vibrant characteristic is made Amplified with impedance measurement device, rumble spectrum is analyzed by FFT spectrum analyzer, obtains L/F (loss factor) value, it will be The situation that value at 20 DEG C is 0.35 or more is expressed as qualification, and by the value at 20 DEG C less than 0.35 the case where is expressed as not conforming to Lattice.
Resistance to connectivity assessment
The resistance to connectivity of laminated glass is assessed based on KS L 2007.
It is made respectively using the glass of 300mm × 300mm with a thickness of 2.1cm and each plural layers of Examples and Comparative Examples It is standby at glass-plural layers-glass stepped construction, then pre-terminated merging is de-gassed and edge seal under vacuum conditions. Then, main at 150 DEG C using autoclave to engage 2 hours, so that sample be made.Then, the steel ball of 2.26kg is fallen In the height (MBH) that on the sample, thus measurement sample is pierced.At this point, by being pierced at position of the height less than 4m The case where be expressed as it is unqualified, and will height equal to or more than 4m position at be pierced the case where be expressed as qualification.
Impact resistance assessment
It is whether notch based on the KS L 2007:2008 laminated glass for assessing embodiment and comparative example.
By with above-mentioned resistance to connectivity assess it is identical in a manner of carry out glass and Examples and Comparative Examples using 2.1cm thickness Each plural layers prepare respectively and are bonded into glass-plural layers-glass stepped construction process.
Low temperature evaluation in, by 227g steel ball subzero 20 DEG C at a temperature of keep 4 hours, then from the height of 9m throw Under, by by the sample broke impacted and glass disperses or the amount of glass that falls off from sheet material is 15g or more situation is expressed as It is unqualified, by by the sample impacted it is broken or glass does not disperse and the case where the sheet glass amount that falls off from sheet material is less than 15g It is expressed as qualification.
Room temperature evaluation in, by 227g steel ball subzero 40 DEG C at a temperature of keep 4 hours, then from the height of 10m throw Under, by by the sample broke impacted and glass disperses or the amount of glass that falls off from sheet material is 15g or more situation is expressed as It is unqualified, by by the sample impacted it is broken or glass does not disperse and the case where the sheet glass amount that falls off from sheet material is less than 15g It is expressed as qualification.
Physical property assessment result
The assessment result of resistance to connectivity etc.
For the resistance to connectivity of the above embodiments 1 to 3 and comparative example 1 to 3, impact resistance, sound damping, bubble test As a result it is shown in the following table 2.
[table 2]
Referring to upper table 2, the sample of embodiment and comparative example be evaluated as having excellent resistance to connectivity, impact resistance and every Sound characteristic.
In particular, in the case where sound damping, even if being made as in the present invention by carrying out surface plasma processing When making plural layers, sound insulation value is also maintained at certain level or more, it can thus be assumed that surface plasma processing greatly mentions High bonding force but big influence is not brought on sound insulation value.In addition, all samples of the embodiment and comparative example all meet machine Tool performance condition may thereby determine that also there is sample the resistance to of certain level or more to pass through even if carrying out surface plasma processing The general character and impact resistance.
In particular, there are sizable differences between embodiment and comparative sample in bubble test result, in embodiment In the case where, it confirms and significantly suppresses air bubble growth.What this species diversity was considered as generating due to interlayer engaging force is improved, And embodiment is assessed as the machine performance of plural layers and sound damping being maintained at certain level or more and inhibits bubble raw It is long, to inhibit the effect of the formation of the snowflake (frost flower) illustrated in an embodiment of the present invention as the defect of sound insulation intermediate coat It is brilliant.
Each interlayer engaging force measurement result
The engaging force and first layer and second at the interface between the first glass that assessment is engaged with first layer in the above described manner Engaging force between layer, and the difference between these values is also had evaluated, its result is summarised in the following table 3.
[table 3]
Unit: Kgf/10mm Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
The engaging force (1) of the-the first glass interface of first layer (A) 30 40 30 40
The engaging force (2) of the-the second bed boundary of first layer (B) 32 36 25 43
The difference [difference of (1) and (2)] of engaging force 2 4 5 3
(1) and the engaging force difference * * (%) of (2) 6.7 10.0 16.7 7.5
Engaging force measurement result Comparative example 1 Comparative example 2 Comparative example 3 Embodiment 5
The engaging force (1) of the-the first glass interface of first layer (A) 30 39 30 40
The engaging force (2) of the-the second bed boundary of first layer (B) 22 28 15 35
The difference [difference of (1) and (2)] of engaging force 8 11 8 5
(1) and the engaging force difference * * (%) of (2) 26.7 28.2 50.0 12.5
(2) engaging force increase rate * (%) 45.5 28.6 66.7 22.9
* engaging force poor (%) will be in each embodiment or comparative example | [the engagement of the-the first glass interface of first layer (A) Power (1)]-[engaging force (2) of the-the second bed boundary of first layer (B)] |/[engaging force (1) of the-the first glass interface of first layer (A)] Value is as a percentage.
* engaging force increase rate will be formed when being constituted film with identical | (the-the second bed boundary of first layer of embodiment Engaging force)-(engaging force of the-the second bed boundary of first layer of comparative example) | the/(engagement of the-the second bed boundary of first layer of comparative example Power) value is as a percentage.
It can determine that in the sample of embodiment, especially the engaging force of first layer-second layer interface (B) is substantially by upper table 3 It improves.And it is possible to determine between the engaging force and surface-core interface engaging force at the interface (A) of the-the first glass of first layer Difference is greatly decreased.
Although as described above, the preferred embodiment of the present invention is described in detail, although it will be appreciated that of the invention Range is not limited to the above embodiments, but uses the art technology for the basic conception of the invention being defined in the claims The various changes or deformation of personnel all belong to the scope of the present invention.

Claims (21)

1. a kind of glass engagement plural layers, comprising:
First layer, comprising the first polyvinyl acetal resin and the first plasticizer, the one side of the first layer and the first glass Directly connect on one side;And
The second layer, the one side of the second layer directly connect with the another side of the first layer, and include the contracting of the second polyvinyl alcohol Urea formaldehyde and the second plasticizer,
Wherein, pass through the engaging force and described between 180 degree peel test first glass assessed and the first layer The difference between engaging force between one layer and the second layer is equal to or less than 7Kgf/10mm.
2. glass engagement plural layers according to claim 1, wherein
The second layer contains more plasticizer compared with the first layer.
3. glass engagement plural layers according to claim 1, wherein
The hydroxy radical content of first polyvinyl acetal resin is equal to or more than 30mol%, and acetyl content is less than 2mol%.
4. glass engagement plural layers according to claim 1, wherein
Interface between the first layer and the second layer is by one to the first layer to connect with the second layer Made of being engaged after the one side of face or the second layer to connect with the first layer progress plasma treatment.
5. glass engagement plural layers according to claim 1, wherein
The bonding force value between the first layer and the second layer assessed by 180 degree peel test is 25 to 40Kgf/ 10mm。
6. glass engagement plural layers according to claim 1, further includes:
Third layer, the one side of the third layer directly connects with the second layer and its another side directly connects with the second glass, And the third layer includes third polyvinyl acetal resin and third plasticizer,
Wherein, pass through the engaging force and described between 180 degree peel test second glass assessed and the third layer The difference between engaging force between two layers and the third layer is equal to or less than 7Kgf/10mm.
7. glass engagement plural layers according to claim 6, wherein
The second layer contains more plasticizer compared with the third layer.
8. glass engagement plural layers according to claim 6, wherein
The hydroxy radical content of the third polyvinyl acetal resin is equal to or more than 30mol%, and acetyl content is less than 2mol%.
9. glass engagement plural layers according to claim 6, wherein
Interface between the third layer and the second layer is by one to the second layer to connect with the third layer Made of being engaged after the one side of face or the third layer to connect with the second layer progress plasma treatment.
10. glass engagement plural layers according to claim 6, wherein
Bonding force value between the second layer assessed by 180 degree peel test and the third layer is 25 to 40Kgf/ 10mm。
11. a kind of preparation method of plural layers, comprising:
Extrusion step puts into the first layer formation comprising the first polyvinyl acetal resin and the first plasticizer with composition Second layer formation comprising the second polyvinyl acetal resin and the second plasticizer is put into composition by the first extruder Two extruders, to squeeze out first layer and the second layer;
Surface treatment step, to the first layer or the second layer while carry out plasma treatment come formed by The one side of surface treatment;And
Stacking steps carry out extrusion lamination, so as to pass through the surface treatment step in the first layer and the second layer One layer it is surface treated with another layer without surface treatment while connect,
Wherein, connecing between the first glass and the first layer assessed using the method preparation by 180 degree peel test Glass of the difference equal to or less than 7Kgf/10mm between resultant force and the engaging force between the first layer and the second layer engages Use plural layers.
12. the preparation method of plural layers according to claim 11, wherein
The plasma treatment of the surface treatment step carries out under the conditions of 30 to 50 DEG C of temperature with 5 to 10m/min roll-to-roll Process is completed.
13. a kind of laminated glass, including stack gradually the first glass, glass engagement multi-layer thin according to claim 1 Laminated body made of film and the second glass.
14. a kind of glass engagement plural layers, comprising:
First layer, comprising the first polyvinyl acetal resin and the first plasticizer, the one side of the first layer and the first glass Directly connect on one side;And
The second layer, the one side of the second layer directly connect with the another side of the first layer, and include the contracting of the second polyvinyl alcohol Urea formaldehyde and the second plasticizer,
Wherein, the one side of the first layer for the glass engagement plural layers assessed by 180 degree peel test and institute Stating the engaging force between the second layer has the engaging force increase rate value for being equal to or more than 20%, and the engaging force increase rate value indicates With the engaging force that the one side of the first layer engaged without plasma treatment is improved compared with the engaging force between the second layer Degree.
15. glass engagement plural layers according to claim 14, wherein
Interface between the first layer and the second layer is by one to the first layer to connect with the second layer Made of being engaged after the one side of face or the second layer to connect with the first layer progress plasma treatment.
16. glass engagement plural layers according to claim 14, wherein
The bonding force value between the first layer and the second layer assessed by 180 degree peel test is 25 to 40Kgf/ 10mm。
17. glass engagement plural layers according to claim 14, further includes:
Third layer, the one side of the third layer directly connects with the second layer and its another side directly connects with the second glass, And the third layer includes third polyvinyl acetal resin and third plasticizer,
Wherein, the one side of the third layer for the glass engagement plural layers assessed by 180 degree peel test and institute State the engagement between the one side and the second layer for the third layer that the engaging force between the second layer is engaged with without plasma treatment Power is compared and improves 20% or more.
18. glass engagement plural layers according to claim 17, wherein
Interface between the third layer and the second layer is by one to the second layer to connect with the third layer Made of being engaged after the one side of face or the third layer to connect with the second layer progress plasma treatment.
19. glass engagement plural layers according to claim 17, wherein
Bonding force value between the second layer assessed by 180 degree peel test and the third layer is 25 to 40Kgf/ 10mm。
20. a kind of preparation method of plural layers, comprising:
Extrusion step puts into the first layer formation comprising the first polyvinyl acetal resin and the first plasticizer with composition Second layer formation comprising the second polyvinyl acetal resin and the second plasticizer is put into composition by the first extruder Two extruders, to squeeze out first layer and the second layer;
Surface treatment step, to the first layer or the second layer while carry out plasma treatment come formed by The one side of surface treatment;And
Stacking steps carry out extrusion lamination, so that passing through the surface treatment step in the first layer and the second layer One layer it is surface treated with another layer without surface treatment while connect,
Wherein, glass engagement plural layers are prepared using the method, is connect by the glass that 180 degree peel test is assessed The engaging force shared between the one side and the second layer of the first layer of plural layers connects with without plasma treatment The one side of the first layer of conjunction improves compared with the engaging force between the second layer 20% or more.
21. a kind of laminated glass, including stack gradually the first glass, glass engagement multi-layer thin according to claim 14 Laminated body made of film and the second glass.
CN201810904547.2A 2018-03-30 2018-08-09 Multilayer film for glass bonding, laminated glass including the same, and method for producing the same Active CN110315814B (en)

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