TW202323027A - Multi-layer structure - Google Patents
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- TW202323027A TW202323027A TW111136576A TW111136576A TW202323027A TW 202323027 A TW202323027 A TW 202323027A TW 111136576 A TW111136576 A TW 111136576A TW 111136576 A TW111136576 A TW 111136576A TW 202323027 A TW202323027 A TW 202323027A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
- B32B17/04—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments bonded with or embedded in a plastic substance
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
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Abstract
Description
發明領域 本發明係關於多層結構體。 field of invention The present invention relates to multilayer structures.
發明背景 已知層疊有2層以上的層的多層結構體。作為一例,可舉出在板厚度薄的玻璃層(玻璃膜)上層疊有銀反射層的多層結構體。該多層結構體的厚度例如,在10~200μm的範圍內。該多層結構體例如,由藉由下拉法成型的玻璃輥來獲得。 先實施技術文獻 專利文獻 Background of the invention A multilayer structure in which two or more layers are laminated is known. As an example, a multilayer structure in which a silver reflective layer is laminated on a thin glass layer (glass film) can be mentioned. The thickness of the multilayer structure is, for example, within a range of 10 to 200 μm. The multilayer structure is obtained, for example, from a glass roll formed by the down-draw method. Implement Technical Documents First patent documents
專利文獻1:日本特開2013-231744號公報Patent Document 1: Japanese Patent Laid-Open No. 2013-231744
發明概要 <發明欲解決之問題> 可是,如果多層結構體被置於高溫環境下,則由於熱的影響有時產生外觀不良。 Summary of the invention <Problem to be solved by the invention> However, if the multilayer structure is placed in a high-temperature environment, it may cause poor appearance due to the influence of heat.
本發明是鑑於上述方面而提出的,其目的在於提供即使置於高溫環境下,也不易產生外觀不良的多層結構體。 用於解決問題的方法 The present invention has been made in view of the above points, and an object of the present invention is to provide a multilayer structure that is less likely to have a defective appearance even when placed in a high-temperature environment. method used to solve the problem
本多層結構體具有樹脂製的支撐體、層疊於上述支撐體上的黏著劑層、層疊於上述黏著劑層上的金屬層以及層疊於上述金屬層上的玻璃層,上述玻璃層的厚度為10μm以上300μm以下,將上述黏著劑層的60℃時的彈性模量設為x[MPa],將上述支撐體所包含的水分量設為y[μg/cm 2]時,滿足y≦3333.3x。 <發明之功效> This multilayer structure has a support made of resin, an adhesive layer laminated on the support, a metal layer laminated on the adhesive layer, and a glass layer laminated on the metal layer, and the thickness of the glass layer is 10 μm. When the above 300 μm is defined as x [MPa] for the elastic modulus at 60° C. of the adhesive layer and y [μg/cm 2 ] for the amount of moisture contained in the support, y≦3333.3x is satisfied. <Efficacy of Invention>
根據公開的技術,能夠提供即使置於高溫環境下也不易產生外觀不良的多層結構體。According to the disclosed technology, it is possible to provide a multilayer structure that is less prone to appearance defects even if placed in a high-temperature environment.
較佳實施例之詳細說明 以下,參照附圖對於具體實施方式進行說明。各附圖中,同一構成部分附上同一符號,有時省略重複的說明。 Detailed Description of the Preferred Embodiment Hereinafter, specific embodiments will be described with reference to the drawings. In each drawing, the same components are assigned the same symbols, and overlapping descriptions may be omitted.
圖1為例示本實施方式涉及的多層結構體的斷面圖。圖1所示那樣,多層結構體1具有支撐體10、黏著劑層20、樹脂層30、金屬層40、接著劑層50以及玻璃層60。黏著劑層20、樹脂層30、金屬層40、接著劑層50、和玻璃層60依次層疊於支撐體10的上面10a。另外,樹脂層30和接著劑層50根據需要設置。FIG. 1 is a cross-sectional view illustrating a multilayer structure according to this embodiment. As shown in FIG. 1 , the
多層結構體1的平面形狀(從支撐體10的上面10a的法線方向觀察的形狀)例如,為矩形。然而,並不限定於此,多層結構體1的平面形狀能夠為圓形、橢圓形、它們的組合、其它適宜的形狀。The planar shape of the multilayer structure 1 (the shape viewed from the direction normal to the
多層結構體1例如,能夠作為鏡使用。多層結構體1中,玻璃層60的厚度為10μm以上300μm以下。多層結構體1中,玻璃層60的厚度薄,玻璃層60的表面與金屬層40的距離極其近。因此,多層結構體1中,能夠解決圖像雙重顯現的以往的板玻璃的課題而顯出清晰的圖像。The
這裡,對於多層結構體1的各部的材料等進行說明。Here, materials and the like of each part of the
[支撐體]
支撐體10為樹脂製,支撐玻璃層60等。支撐體10的厚度能夠為例如,1mm以上5mm以下左右。作為支撐體10的材料,可舉出例如,聚碳酸酯、聚丙烯等樹脂。
[Support]
The
作為支撐體10,能夠使用玻璃、金屬,由於玻璃、金屬重,因此多層結構體1整體的重量增加而操作性惡化。藉由使用樹脂製的支撐體10,從而能夠使多層結構體1輕量化,能夠提高多層結構體1的操作性。從進一步提高操作性的觀點考慮,支撐體10的每單位面積的重量優選為8kg/m
2以下。此外,藉由使用樹脂製的支撐體10,從而能夠實現具有撓性的多層結構體1。例如,能夠將多層結構體1沿著彎曲面而黏貼。
Glass or metal can be used as the
[黏著劑層]
黏著劑層20層疊於支撐體10上。圖1的例子中,黏著劑層20設置於支撐體10與樹脂層30之間,但是在多層結構體1不具有樹脂層30的情況下,黏著劑層20設置於支撐體10與金屬層40之間。作為黏著劑層20,使用任意的適當的黏著劑。作為黏著劑層20的材料,可舉出例如,丙烯酸系黏著劑、有機矽系黏著劑、橡膠系黏著劑等。黏著劑層20的厚度沒有特別限定,例如,為5μm以上500μm以下左右。
[Adhesive layer]
The
[樹脂層]
樹脂層30在支撐體10上隔著黏著劑層20而層疊。樹脂層30由1層或複數層來構成。在樹脂層30由複數層形成的情況下,優選介由具有接著功能的密著層使其層疊。樹脂層30的總厚度從撓性的觀點考慮,只要為20μm以上1000μm以下即可,優選為25μm以上500μm以下,更優選為50μm以上200μm以下的範圍。在樹脂層30由1層構成的情況下,樹脂層30的厚度例如,能夠為20μm以上150μm以下的範圍。
[Resin layer]
The
作為樹脂層30的材料,可舉出例如,聚對苯二甲酸乙二醇酯系樹脂、聚萘二甲酸乙二醇酯系樹脂等聚酯系樹脂、降冰片烯系樹脂等環烯烴系樹脂、聚醚碸系樹脂、聚碳酸酯系樹脂、丙烯酸系樹脂、聚烯烴系樹脂、聚醯亞胺系樹脂、聚醯胺系樹脂、聚醯亞胺醯胺系樹脂、聚芳酯系樹脂、聚碸系樹脂、聚醚醯亞胺系樹脂、纖維素系樹脂、氨基甲酸酯系樹脂等。Examples of the material for the
樹脂層30根據需要設置,藉由設置樹脂層30,從而發揮多層結構體1的操作性提高的效果。The
[金属層]
金屬層40在黏著劑層20上隔著樹脂層30而層疊。在多層結構體1不具有樹脂層30的情況下,金屬層40直接層疊於黏著劑層20上。金屬層40為將藉由玻璃層60和接著劑層50而入射的可見光進行反射的層。作為金屬層40的材料,優選為可見光反射率高的材料,可舉出例如,鋁、銀、銀合金等。金屬層40的厚度沒有特別限定,例如,為10nm以上500nm以下左右。金屬層40能夠在樹脂層30的上面,例如,藉由濺射法、蒸鍍法、鍍覆法等來形成。
[Metal layer]
The
另外,金屬層40可以在玻璃層60的下面,例如,藉由濺射法、蒸鍍法、鍍覆法等而形成。在該情況下,不需要接著劑層50。In addition, the
[接著劑層]
接著劑層50由可見光透射率高的材料形成。接著劑層50的厚度為例如,0.1μm以上25μm以下。作為接著劑層50,能夠利用例如,丙烯酸系黏著劑、有機矽系黏著劑、橡膠系黏著劑、紫外線固化性丙烯酸系接著劑、紫外線固化性環氧系接著劑、熱固性環氧系接著劑、熱固性三聚氰胺系接著劑、熱固性苯酚系接著劑、乙烯乙酸乙烯酯(EVA)中間膜、聚乙烯醇縮丁醛(PVB)中間膜等。
[Adhesive layer]
The
另外,在本說明書中,所謂黏著劑,是指在常溫下具有接著性,以輕壓力接著於被著體的層。因此,即使在將貼著於黏著劑的被著體剝離的情況下,黏著劑也保持實用上的黏著力。另一方面,所謂接著劑,是指介於物質之間而能夠結合物質的層。因此,在將貼著於接著劑的被著體剝離的情況下,接著劑不具有實用上的接著力。In addition, in this specification, an adhesive means the layer which has adhesiveness at normal temperature, and adheres to a to-be-adhered body with light pressure. Therefore, even when the to-be-attached body adhered to the adhesive is peeled off, the adhesive maintains a practical adhesive force. On the other hand, an adhesive means a layer interposed between substances and capable of bonding substances. Therefore, when peeling off the to-be-adhered body stuck to an adhesive agent, an adhesive agent does not have practical adhesive force.
[玻璃層]
玻璃層60隔著接著劑層50而層疊於金屬層40上。玻璃層60沒有特別限定,能夠根據目的採用適當的層。玻璃層60根據基於組成的分類,可舉出例如,鈉鈣玻璃、硼酸玻璃、鋁矽酸玻璃,石英玻璃等。另外,根據基於鹼成分的分類,可舉出無鹼玻璃、低鹼玻璃。上述玻璃的鹼金屬成分(例如,Na
2O、K
2O、Li
2O)的含量優選為15重量%以下,進一步優選為10重量%以下。
[Glass Layer] The
玻璃層60的厚度如果考慮玻璃具有的表面硬度、氣密性、耐腐蝕性,則優選為10μm以上。另外,玻璃層60期望具有膜那樣的撓性,因此玻璃層60的厚度優選為300μm以下。玻璃層60的厚度進一步優選為20μm以上200μm以下,特別優選為30μm以上150μm以下。The thickness of the
玻璃層60的波長550nm時的光透射率優選為85%以上。玻璃層60的波長550nm時的折射率優選為1.4~1.65。玻璃層60的密度為優選為2.3g/cm
3~3.0g/cm
3,進一步優選為2.3g/cm
3~2.7g/cm
3。
The light transmittance of the
玻璃層60的成型方法沒有特別限定,能夠根據目的採用適當的方法。代表性地,玻璃層60能夠將包含二氧化矽、氧化鋁等主原料;芒硝、氧化銻等消泡劑;碳等還原劑的混合物在1400℃~1600℃左右的溫度進行熔融,成型為薄板狀之後,冷卻來製作。作為玻璃層60的成型方法,可舉出例如,流孔下引法、熔融法、浮式法等。藉由這些方法而成型為板狀的玻璃層為了薄板化,提高平滑性,可以根據需要,藉由氫氟酸等溶劑而化學地研磨。The method for forming the
另外,可以在玻璃層60的上面(沒有形成接著劑層50一側的面)設置防污層、防反射層、導電層、反射層、裝飾層等功能層。In addition, functional layers such as an antifouling layer, an antireflection layer, a conductive layer, a reflective layer, and a decorative layer may be provided on the upper surface of the glass layer 60 (the surface on which the
[支撐體所包含的水分的影響]
支撐體10為樹脂,因此包含水分。樹脂所包含的水分量根據材料而不同,例如,為表1所示的值。表1由發明人等測定,因此為樹脂所包含的水分量的例子。當然,表1沒有例示的樹脂也包含規定量的水分。
[表1]
[Influence of Water Contained in Support] Since the
發明人等發現如果將支撐體為樹脂的多層結構體在高溫環境(例如,60℃)下使用,則樹脂所包含的水分侵入黏著劑層內,成為氣泡,使多層結構體的外觀惡化。The inventors found that if a multilayer structure whose support is a resin is used in a high temperature environment (for example, 60° C.), moisture contained in the resin penetrates into the adhesive layer and becomes air bubbles, deteriorating the appearance of the multilayer structure.
高溫環境(例如,60℃)下的多層結構體的外觀的惡化認為取決於以下那樣的機理。首先,由於加熱而黏著劑層的彈性模量降低,支撐體所包含的水分推開表面附近的黏著劑而易於侵入黏著劑層內,侵入黏著劑層內的水分氣化而產生氣泡。而且,黏著劑層內的氣泡在與黏著劑層相比位於玻璃層側的樹脂層、金屬層的表面產生微小的凹凸。由此,金屬層的表面上的反射變得不均勻而使多層結構體的外觀惡化。The deterioration of the appearance of the multilayer structure in a high-temperature environment (for example, 60° C.) is considered to be due to the following mechanism. First, the elastic modulus of the adhesive layer decreases due to heating, and the moisture contained in the support pushes away the adhesive near the surface and easily penetrates into the adhesive layer, and the moisture that penetrates into the adhesive layer vaporizes to generate air bubbles. Furthermore, air bubbles in the adhesive layer cause minute irregularities on the surfaces of the resin layer and the metal layer that are located on the side of the glass layer relative to the adhesive layer. Thus, the reflection on the surface of the metal layer becomes uneven to deteriorate the appearance of the multilayer structure.
因此,多層結構體1中,實施使支撐體10所包含的水分不向黏著劑層20移動那樣的對策。關於此,以下進行說明。Therefore, in the
發明人等考慮了為了使支撐體10所包含的水分不向黏著劑層20移動,則作為支撐體10的材料使用低吸水的樹脂,而且作為黏著劑層20的材料使用即使高溫環境(例如,60℃)也具有高彈性模量的黏著劑是有效的。即,認為高溫環境(例如,60℃)下,如果黏著劑層20的彈性模量高,則黏著劑層20硬,因此能夠抑制水分從黏著劑層20與支撐體10的界面進入黏著劑層20的內部,進行了實驗。The inventors considered that in order to prevent the moisture contained in the
發明人等製作複數個改變了支撐體10所包含的水分量和黏著劑層20的彈性模量的多層結構體的樣品,在60℃的環境下保存12小時之後,目視檢查研究是否由於氣泡而多層結構體的外觀惡化了。另外,實驗所使用的多層結構體的樣品的平面形狀為矩形,設為縱297mm×橫210mm。此外,使樹脂層30的厚度為20μm,金屬層40的厚度為50nm,接著劑層50的厚度為2μm,玻璃層60的厚度為100μm。The inventors prepared a plurality of samples of the multilayer structure in which the amount of moisture contained in the
此外,支撐體10所包含的水分量的測定藉由卡爾費歇爾法進行。此外,黏著劑層20的彈性模量使用奈米壓痕儀(Hysitron Inc社製Triboindenter),藉由奈米壓痕法來測定。作為使用壓頭,使用Conical(球形壓頭:曲率半徑10μm),藉由60℃時的單一壓入法,以壓入深度約2μm的測定條件測定彈性模量。In addition, the measurement of the moisture content contained in the
將實驗結果顯示於圖2。圖2為表示60℃時的黏著劑層的彈性模量[MPa]與支撐體的水分量[μg/cm 2]的關係的圖。圖2中,〇為由於氣泡而多層結構體的外觀沒有惡化的樣品,×為由於氣泡而多層結構體的外觀惡化的樣品。 The experimental results are shown in FIG. 2 . Fig. 2 is a graph showing the relationship between the elastic modulus [MPa] of the adhesive layer and the water content [μg/cm 2 ] of the support at 60°C. In FIG. 2 , ○ is a sample in which the appearance of the multilayer structure is not deteriorated due to bubbles, and × is a sample in which the appearance of the multilayer structure is deteriorated due to bubbles.
由圖2所示的結果可以說,如果為靠圖2的傾斜的直線的箭頭側,則多層結構體的外觀沒有惡化。即,藉由將黏著劑層20的60℃時的彈性模量設為x[MPa],支撐體10所包含的水分量設為y[μg/cm
2]時,滿足y≦3333.3x,則能夠抑制由支撐體10所包含的水分引起的多層結構體的外觀的惡化。
From the results shown in FIG. 2 , it can be said that the appearance of the multilayer structure does not deteriorate as long as it is on the arrow side of the inclined straight line in FIG. 2 . That is, when the elastic modulus of the
然而,黏著劑層20的彈性模量優選為0.1MPa以上。如果黏著劑層20的彈性模量為0.1MPa以上,則能夠抑制由於打痕等而在金屬層40的表面產生微小的凹凸。此外,如果黏著劑層20的彈性模量為0.1MPa以上,則多層結構體1的製造工序中的操作變得容易。However, the modulus of elasticity of the
此外,支撐體10所包含的水分量優選為1500μg/cm
2以下。如果支撐體10所包含的水分量為1500μg/cm
2以下,則從能夠抑制由水分引起的多層結構體的外觀的惡化方面看是適合的。
In addition, the amount of water contained in the
另外,作為用作支撐體10的材料的適合的低吸水的樹脂,可舉出例如,表1所示的聚碳酸酯、聚丙烯,但是不限定於此。此外,作為提高黏著劑層20的彈性模量的方法,可舉出例如,提高單體的交聯密度,提高單體的玻璃化轉變溫度,使用多官能單體等方法。In addition, suitable low water-absorbing resins used as the material of the
以上,對於優選實施方式等進行了詳細說明,但是不限制於上述實施方式等,能夠不脫離申請專利範圍所記載的範圍,對於上述實施方式等施加各種變形和置換。As mentioned above, although preferred embodiment etc. were described in detail, it is not limited to the above-mentioned embodiment etc., Various deformation|transformation and substitution can be added to the said embodiment etc. without deviating from the range described in the claim.
本國際申請主張基於2021年9月28日申請的日本專利申請2021-157512號的優先權,將日本專利申請2021-157512號的全部內容援用至本國際申請中。This international application claims priority based on Japanese Patent Application No. 2021-157512 filed on September 28, 2021, and uses all the contents of Japanese Patent Application No. 2021-157512 in this international application.
1:多層結構體
10:支撐體
10a:上面
20:黏著劑層
30:樹脂層
40:金屬層
50:接著劑層
60:玻璃層
1: multi-layer structure
10:
圖1為例示本實施方式涉及的多層結構體的斷面圖。 圖2為表示60℃時的黏著劑層的彈性模量[MPa]與支撐體的水分量[μg/cm 2]的關係的圖。 FIG. 1 is a cross-sectional view illustrating a multilayer structure according to this embodiment. Fig. 2 is a graph showing the relationship between the elastic modulus [MPa] of the adhesive layer and the water content [μg/cm 2 ] of the support at 60°C.
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-157512 | 2021-09-28 | ||
JP2021157512 | 2021-09-28 |
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TW202323027A true TW202323027A (en) | 2023-06-16 |
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TW111136576A TW202323027A (en) | 2021-09-28 | 2022-09-27 | Multi-layer structure |
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JP (1) | JPWO2023054282A1 (en) |
TW (1) | TW202323027A (en) |
WO (1) | WO2023054282A1 (en) |
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JP2011026449A (en) * | 2009-07-24 | 2011-02-10 | Lintec Corp | Laminate and article comprising the same |
JP2013231744A (en) * | 2010-08-20 | 2013-11-14 | Konica Minolta Advanced Layers Inc | Film mirror, manufacturing method of the same, and sunlight reflecting mirror using the same |
JP2015125167A (en) * | 2013-12-25 | 2015-07-06 | コニカミノルタ株式会社 | Film mirror, method for manufacturing the same, and reflecting device for solar thermal power generation |
JP2017096987A (en) * | 2014-03-26 | 2017-06-01 | コニカミノルタ株式会社 | Light reflection film |
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