CN1823023A - 具有极低日光系数的涂覆基底 - Google Patents
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Classifications
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- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3618—Coatings of type glass/inorganic compound/other inorganic layers, at least one layer being metallic
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
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- C03C17/3644—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the metal being silver
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
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- C03C17/3652—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the coating stack containing at least one sacrificial layer to protect the metal from oxidation
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
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- C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
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- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3681—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating being used in glazing, e.g. windows or windscreens
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
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- C03C17/3689—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one oxide layer being obtained by oxidation of a metallic layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Laminated Bodies (AREA)
Abstract
本发明涉及具有极低日光系数的涂覆的基底,特别是涂覆有叠层的透明基底,其中该叠层包括一个或多个金属层,并且从基底开始至少依次包含:第一介电材料层,第一吸收层,红外反射层,第二吸收层,最末介电材料层,对这些层的厚度和性质进行选择以便当该基底为6mm的透明钠钙玻璃时,涂覆的基底总的光吸收高于或等于35%。这种涂覆基底可以用作例如建筑物或车辆的窗玻璃单元,用于层压结构或用作滤光片。
Description
本发明涉及涂覆的基底,特别是涂覆有叠层的透明基底,其中该叠层包括一个或多个金属层。
这种涂覆的基底可以以单层结构、双层结构或叠层结构用作例如建筑物或车辆的窗玻璃单元,以及用作滤光片。
希望用于建筑物或车辆的窗玻璃单元不会容许过大比例的全部入射日光辐射透过,以便不会使建筑物或车厢内部变得过热,同时仍可提供适当的光透射(LT=由基底透过的光源D65的入射光通量的百分比)以便向建筑物内部提供足够的照明水平。可以用日光系数(SF=入射能量辐射的百分比,该辐射一方面直接透过基底,另一方面被基底吸收,然后通过其相对面辐射向能量源)来表示全部入射日光辐射的透射。这些稍显矛盾的要求表达了获取具有高选择性(S)的窗玻璃单元的需求,该选择性定义为光透射与日光系数的比率。还希望该窗玻璃单元在光反射(LR=由基底反射的光源D65的入射光通量的百分比)和反射颜色方面满足一定的美观标准。
光吸收(LA)是由基底吸收的(光源D65的)入射光通量的百分比,LT+LR+LA的和等于100%。
本说明书使用照明国际委员会-“Commission Internationale deI’Eclairage”(CIE)的定义。
人们已经知道具有高光透射,低辐射率和低日光系数的涂层的基底。本申请人的专利文献FR2,641,271和FR2,641,272描述了具有多层涂层的玻璃质材料的基底,该涂层在两个透明且非吸收性的层之间包含一个银反射层,该两个层一个位于底部而一个位于顶部。
本申请人的专利文献FR2,733,495描述了基于由非吸收层,特别是金属氧化物的非吸收层隔开的两个银层的日光保护叠层。在每个银层上沉积一个细牺牲金属层。沉积上部的金属氧化物层时,这个细金属层可以充当阻挡层保护银层不被氧化。对其厚度进行调节以便在沉积上部层时,它充分氧化从而允许最大的光透射。在FR2,733,495中,该叠层在6mm的单层透明(clear)玻璃基底上可保持大约76%的高光透射和低的吸收。当基底为6mm的单层透明玻璃薄板时日光系数大约为46%,而对于双层窗玻璃单元日光系数大约为37%。
为进一步降低窗玻璃的日光系数,一种可能是增加叠层中(一个或多个)金属层的厚度或者增加金属层的数目。然而,这种方法的缺点是会增加光反射(LR)并在窗玻璃中产生反射颜色,通常认为这种反射颜色不美观。
US 6,190,776描述了由第一介电层/第一Cr层/Ag或Cu层/第二Cr层/第二介电层构成的可热处理叠层。在热处理之前和之后该叠层都可提供非中性的反射颜色。对利用低日光系数的建筑应用,色度指数a*为1.35至10.30不等而指数b*为7.80至31.70不等,这可以显示紫色至橙色的色彩。热处理之后该窗玻璃的光吸收大约为23%。
人们还知道金属阻挡层在随后的热处理过程中具有保护作用。这些阻挡层在热处理期间不保留金属而氧化从而不再是吸收体。
还存在包含吸收层的日光防护叠层。然而,加入吸收层而不引起光透射的降低是不明显的。因此,在维持叠层反射为中性(或美学上可接受)的同时维持显著的选择性是特别困难的。
EP 185 314描述了包含吸收层、银层和细不锈钢层的叠层。这个情形中的光反射非常高(高达67%)而LT不高于12%。这些特性不满足要求的标准。
US 5,800,933中描述了Si3N4/NiCr/Ag/NiCr/Si3N4型叠层。可以用不锈钢掺杂Si3N4的非吸收层。镍铬层具有大约0.7至0.8nm的厚度。这些叠层适于获得大于70%的光透射和低的辐射率。这种叠层在透明玻璃上的总吸收非常低(在双层窗玻璃中大约为14%,LT=70%,LR=16%)。
WO 02/48065描述了具有双重银层的叠层,该叠层包含直接插入于两个介电层之间的吸收层。这个吸收层必须位于两个银层之间,在中间电介质“中”或上层电介质“中”。在双层窗玻璃中得到的日光系数是26至31%。这些叠层的目的是在钢化后维持良好的光学性能。在两个介电层之间插入吸收层的缺点是使制造工艺变得复杂。实际上,必须中断介电层(非金属状态)的沉积条件来沉积金属状态的吸收层。
EP 1 032 543描述了包括下列层的日光防护叠层:非吸收层,第一红外反射层,牺牲阻挡层,第二非吸收层,第二红外反射层,第二牺牲阻挡层和最后的非吸收层。在任一红外反射层之下加入吸收层。这种叠层具有大约31%的日光系数(在双层窗玻璃中)。
然而,存在提供涂覆的基底的需求,其中日光系数更低而其它光学特性保持良好:涂覆侧和未涂覆侧的反射低,高选择性,反射颜色美观等。
已发现通过依照本发明权利要求1的涂覆不同层的基底可以获得要求的光学性能组合以及其它优点。
本发明特别涉及涂覆有叠层的基底,该叠层从基底开始依次至少包含:
i)介电材料层
ii)吸收层
iii)红外反射层
iv)吸收层
v)介电材料层
对这些层的厚度和性质进行选择以便该叠层可以提供光吸收(相对于玻璃侧:LAg)大于或等于35%,优选大于37%,更优选大于39%,且低于67%,优选低于60%,更优选低于55%的6mm透明钠钙玻璃。应注意的是,认为光吸收是最终产品的光吸收,最终产品指经过热处理或未经过热处理的涂覆的基底。
应当清楚,术语基底是指通常由玻璃质材料制成的任何透明基底,无论是透明还是有色:玻璃,玻璃陶瓷,有机玻璃,聚碳酸酯,PET,各种透明聚合物;特别是钠钙玻璃。
如果该叠层包含以如下顺序沉积的至少两个红外反射层将特别有利,从基底开始为:
第一介电材料层,
第一吸收层,
第一红外反射层,
中间层,
最末(last)红外反射层,
最末吸收层,
最末介电材料层。
另一种可能是可以沉积两个以上的红外反射层。在这种情形中,必须在第一介电材料层和第一反射层之间沉积至少一个第一吸收层,并且在最末反射层和最末介电材料层之间沉积至少一个第二吸收层,每个反射层通过中间层与随后的一个隔开,特别是介电材料层,和/或可能的阻挡层。因此,所有的反射层都被夹在两个吸收层之间。因此,在上述顺序的层中,中间层可以用中间层/反射层/中间层的可选排列进行替换。
还可以沉积两个以上的吸收层。因此,不排除在红外反射材料的两层之间沉积一个或多个吸收层的可能。
该(一个或多个)红外反射层的总厚度通常大于10nm,优选范围是13至40nm,且更优选为18至35nm。在叠层包含两个银层的特定情形中,这两个层的总厚度优选大于25nm,且更优选大于27nm。
特别地,依照本发明的叠层包含位于红外反射层和后面的介电层之间的牺牲层。
根据本发明的优选实施方案,该叠层基本上由下列层的序列组成,从基底开始依次为:
a)介电材料层,
b)吸收层,
c)红外反射层,
d)牺牲阻挡层,
e)介电材料层,
f)红外反射层,
g)同时具有阻挡层功能的吸收层
h)介电材料层
这些层的介电材料可以选自金属氧化物,氮化物和氮氧化物,例如氧化铝(AlOx),氮化铝(AlNx),氮氧化铝(AlNxOy),氧化镁(MgO),氧化铌(NbOx),二氧化硅(SiOx),氮化硅(SiNx),二氧化钛(TiOx),氧化铋(BiOx),氧化钇(YOx),氧化锡(SnOx),氧化钽(TaOx),氧化锌(ZnOx),氧化锆(ZrOx),锡酸锌(ZnSnxOy)或选自硫化物例如硫化锌(ZnSx)。这些化合物可以是化学计量的形式或非化学计量的形式。通常,这些化合物在整个可见光谱上具有低于0.1的光谱吸收指数k。
可以单独或以混合物使用这些化合物。它们构成透明、非吸收材料,该材料允许对光反射LR进行调节,并允许由光学干涉作用反射的颜色为中性。介电层可以包含不同材料的两个或多个层。
吸收层的材料选自580nm波长的光谱吸收指数(k580)高于0.8的材料,特别是高于1的材料,且更优选高于1.2的材料。这样的材料是例如金属如钛,锆,不锈钢,铌,锌,铬,镍,以及这些金属的合金,或金属氮化物例如钛或锆的氮化物。
红外反射层的材料通常包含银,或银与其它金属例如铂或钯的合金。
当基底是厚度为6mm的透明钠钙玻璃薄板时,该涂覆基底的光透射优选高于25%,更优选高于30%,且优选低于60%,优选低于55%,更优选低于50%。相对于涂覆的基底的涂层(LRc)和基底(LRg)的光反射都优选低于30%,更优选低于23%,进一步优选低于20%,且通常高于8%,尤其高于10%。当然,相对于涂层或基底的LR值不一定相同。
在一个优选方式中,依照本发明的涂覆的基底具有美观的反射颜色,即,既不是粉红色也不是黄色,而是中性或带蓝色的或青绿色。特别地,相对于该玻璃的反射颜色具有0至-10的色度指数ag *,优选-1至-8,而色度指数bg *的范围是0至-20,优选为-1至-15,且更优选-2至-10。b*优选低于a*。这些值都是最终产品所要求的,无论是否进行热处理。
可以将依照本发明的涂覆的基底引入建筑物中的单层或多层窗玻璃单元,特别是双层窗玻璃单元,而且还可以用在叠层窗玻璃单元中,并用于汽车用途例如车辆的顶部,侧后窗或后窗。
在双层窗玻璃中,可以在位置2或可能的位置3处沉积依照本发明的日光防护涂层,从建筑物外侧向内对两个玻璃薄板每一个的表面进行编号。
优选地,双层窗玻璃(6mm薄板-15mm间距-6mm薄板)的日光系数低于35%,优选低于30%,且更优选低于26%。该双层窗玻璃的选择性(LT/SF)优选高于1.3,优选高于1.5。
依照本发明的窗玻璃相对于外侧优选具有反射颜色,其中色度指数a*的范围是0至-10,优选为-1至-8,而色度指数b*的范围是0至20,优选为-1至-15,更优选-2至-10。
此外,依照本发明的窗玻璃具有角度稳定性,当入射角从60°开始变化时,色度指数a*和b*的变化小于6,优选小于4,且更优选小于2。
在一个优选实施方案中,依照本发明的窗玻璃包含涂覆的基底,该涂覆的基底兼有下列特性:LT在30%至55%之间,优选在31%至46%之间,相对于未涂覆侧的LR在8%至25%之间,优选在9%至24%之间,并且相对于未涂覆侧的色度指数为:a*在0至-8之间,优选在0至-5之间,且b*在0至-20之间,优选在-2至-18之间。
在下列实施例中以非限制方式对本发明进行更详细的描述。
实施例:
每个实施例都对应于由厚6mm的透明钠钙玻璃基底薄板形成的产品,将该基底引入包括连续真空沉积室(约0.3Pa的压力)的涂覆生产线,其中该沉积室包含磁控溅射阴极。
实施例1
如下制造下列连续层的叠层:
○在氧的活性气氛中通过溅射锌金属靶沉积39nm厚的第一氧化锌介电层。
○在氩的惰性气氛中通过溅射钛金属靶沉积4.5nm厚的第一钛吸收层。
○在氩的惰性气氛中通过溅射银金属靶沉积17nm厚的第一银层。
○在氩的惰性气氛中通过溅射钛靶沉积2nm的钛阻挡层。该层实际上将在随后的层的沉积过程中在其大部分厚度上氧化。应注意,一旦被氧化,该层的厚度将大于其金属态的厚度。
○在氧的活性气氛中通过溅射锌金属靶沉积84nm厚的第二氧化锌介电层。
○在氩的惰性气氛中通过溅射银金属靶沉积14nm厚的第二银层。
○在惰性气氛中通过溅射金属靶沉积4nm厚的第二钛吸收层。该层具有双重功效:
它通过防止银层与后面层的活性气氛的一切接触,构成银层的牺牲保护阻挡层,然而它足够厚以致其大部分厚度可保持为金属。对于4nm的沉积厚度,据估计半数沉积的钛将氧化而2nm的厚度将维持金属态。因此在完成的叠层中,将有2nm的金属Ti和大约4nm的TiO2。
○在氧的活性气氛中通过溅射锌金属靶沉积28nm厚的第三氧化锌介电层。
下表II中比较了涂覆有这种叠层的基底的光学性质。
实施例2-14:
可以使用与实施例1相同的操作方法沉积实施例2-14的叠层。下表I显示了各个实施例中沉积的不同层的性质和厚度。厚度以nm表示并且该厚度是任何氧化阶段之前的沉积后的层的厚度。
表I:
I) | II) | III) | IV) | V) | VI) | VII) | VIII) | IX) | X) | |
实施例1(nm) | ZnO39 | Ti4.5 | Ag17 | Ti2 | ZnO84 | × | Ag14 | Ti4 | ZnO28 | |
实施例2(nm) | ZnO35 | Ti5 | Ag17 | Ti2 | SnO280 | × | Ag17 | Zn5.5 | ZnO25 | |
实施例3(nm) | SnO239 | Ti4.5 | Ag17 | Ti2 | ZnO84 | × | Ag14 | Ti3 | SnO229 | |
实施例4(nm) | TiO2/ZnO20/9 | Ti4.5 | Ag17 | Ti2 | ZnO88 | × | Ag14.8 | Ti4 | ZnO30 | |
实施例5(nm) | ZnO35 | Zr4.5 | Ag17 | Ti2 | ZnO84 | × | Ag14 | Ti4 | ZnO28 | |
实施例6(nm) | ZnO38 | ZrN12 | Ag17 | Ti2 | ZnO84 | × | Ag15 | Ti4 | ZnO28 | |
实施例7(nm) | ZnO38 | SS4.5 | Ag17 | Ti2 | ZnO88 | × | Ag15 | Ti4 | ZnO32 | |
实施例8(nm) | ZnO45 | SS6.5 | Ag16.5 | Ti2 | ZnO88 | × | Ag16 | Ti4 | ZnO33 | |
实施例9(nm) | ZnO38 | SS6 | Ag17.5 | Ti2 | ZnO80 | × | Ag14 | Ti4 | ZnO28 | |
实施例10(nm) | ZnO35 | Nb4.5 | Ag17 | Ti2 | ZnO84 | × | Ag15.5 | Nb3 | Ti2 | ZnO28 |
实施例11(nm) | Si3N4/ZnO25/6.5 | Ti4 | Ag17 | Ti2 | Si3N4/ZnO84/6.5 | × | Ag14 | Ti4 | Si3N431 | |
实施例12(nm) | Si3N429 | Ti4 | Ag17 | Ti2 | Si3N488 | × | Ag14 | Ti4 | Si3N431 | |
实施例13(nm) | Si3N429 | Ti4 | Ag17 | Ti2 | Si3N484 | × | Ag17 | Ti4 | Si3N431 | |
实施例14(nm) | Si3N431 | Ti4 | Ag18.5 | Ti2 | Si3N484 | Ti2 | Ag16 | Ti4 | Si3N423 |
下表II中比较了各个涂覆的基底的光学性能。依照En 410标准计算日光系数(SF)值。
表II:
单层窗玻璃 | 双层窗玻璃 | |||||||||
LT | LRg | ag * | bg * | ALg | LRc | LT | SF | S | LR | |
% | % | % | % | % | % | % | ||||
实施例1 | 42.4 | 13.7 | -0.9 | -5.6 | 43.9 | 18.5 | 38.2 | 21.2 | 1.80 | 15.2 |
实施例2 | 36.0 | 12.0 | -2.3 | -18.1 | 52.0 | 13.1 | 32.4 | 16.0 | 2.02 | 13.3 |
实施例3 | 40.1 | 13.5 | -1.5 | -5.2 | 46.4 | 12.6 | 36.0 | 20.6 | 1.75 | 15.0 |
实施例4 | 44.2 | 12.8 | -1.3 | -4.1 | 43.0 | 18.2 | 39.8 | 22.1 | 1.80 | 14.3 |
实施例5 | 45.9 | 14.3 | -0.7 | -8.9 | 39.8 | 19.6 | 41.3 | 23.0 | 1.80 | 15.8 |
实施例6 | 45.2 | 17.8 | -1.0 | -6.9 | 36.7 | 23.7 | 41.0 | 20.9 | 1.96 | 19.7 |
实施例7 | 40.2 | 11.8 | -1.1 | -3.7 | 48.0 | 14.0 | 36.0 | 19.7 | 1.83 | 13.1 |
实施例8 | 35.1 | 12.0 | -1.7 | -3.3 | 52.9 | 14.4 | 31.6 | 16.5 | 1.92 | 13.3 |
实施例9 | 35.0 | 12.5 | -1.1 | -6.9 | 52.5 | 15.9 | 31.5 | 18.0 | 1.75 | 13.8 |
实施例10 | 40.1 | 11.9 | -3.5 | -11.2 | 48.0 | 17.3 | 36.1 | 20.2 | 1.78 | 13.2 |
实施例11 | 41.4 | 16.6 | -2.1 | -5.0 | 42.0 | 18.2 | 37.3 | 22.8 | 1.63 | 18.1 |
实施例12 | 41.1 | 16.4 | -1.3 | -5.6 | 42.5 | 16.3 | 37.0 | 22.4 | 1.65 | 17.9 |
实施例13 | 42.3 | 13.7 | -0.7 | -15.3 | 44.0 | 9.4 | 38.1 | 20.9 | 1.82 | 15.2 |
实施例14 | 31.3 | 14.5 | -1.5 | -11.6 | 54.2 | 16.4 | 28.1 | 15.7 | 1.79 | 15.4 |
Claims (17)
1.涂覆有叠层的透明基底,该叠层从基底开始依次至少包含:
a)第一介电材料层,
b)第一吸收层,
c)红外反射层,
d)第二吸收层,
e)最末介电材料层,对这些层的厚度和性质进行选择以便该叠层可以提供具有下列性质的6mm透明钠钙玻璃:
i)光吸收的范围是35%至67%,优选37%至60%,且更优选39%至55%,和
ii)相对于玻璃的反射颜色,其色度指数a*的范围是0至-10,优选为-1至-8,而色度指数b*的范围是0至-20,优选为-1至-15,且更优选-1至-10。
2.依照前述权利要求的涂覆的基底,其特征在于该涂覆的基底包含至少两个位于叠层中的红外反射层,该叠层从基底开始按下列顺序:
a)第一介电材料层,
b)第一吸收层,
c)第一红外反射层,
d)中间层,
e)最末红外反射层,
f)最末吸收层,
g)最末介电材料层。
3.依照前述权利要求的涂覆的基底,其特征在于该中间层包含如下的层的序列:
a)第一介电层,
b)红外反射层,
c)第二介电材料层。
4.依照任一前述权利要求的涂覆的基底,其特征在于该涂覆的基底包含至少一个牺牲层,该牺牲层位于红外反射层和后面的介电材料层之间。
5.依照任一前述权利要求的涂覆的基底,其特征在于该介电层的材料包含一种或多种选自下列的化合物:氧化铝(AlOx),氮化铝(AlNx),氮氧化铝(AlNxOy),氧化镁(MgOx),氧化铌(NbOx),二氧化硅(SiOx),氮化硅(SiNx),二氧化钛(TiOx),氧化铋(BiOx),氧化钇(YOx),氧化锡(SnOx),氧化钽(TaOx),氧化锌(ZnOx),氧化锆(ZrOx),锡酸锌(ZnSnxOy)或硫化锌(ZnSx)。
6.依照任一前述权利要求的涂覆的基底,其特征在于该一个或多个红外反射层包含银或银与其它金属的合金。
7.依照任一前述权利要求的涂覆的基底,其特征在于该吸收层的材料选自在580nm波长的光谱吸收指数(k580)高于0.8,特别是高于1,且更优选高于1.2的材料。
8.依照任一前述权利要求的涂覆的基底,其特征在于该吸收层的材料选自金属,例如钛,锆,不锈钢,铌,锌,铬,镍,以及这些金属的合金,或者选自金属氮化物例如钛或锆的氮化物。
9.依照任一前述权利要求的涂覆的基底,其特征在于当基底是6mm的透明钠钙玻璃时,该涂覆的基底的光透射的范围是25%至60%,优选30%至55%。
10.依照任一前述权利要求的涂覆的基底,其特征在于相对于涂覆的基底涂层侧的光反射(LRc)低于30%,优选8%至25%,且更优选10%至20%。
11.依照任一前述权利要求的涂覆的基底,其特征在于相对于涂覆基底的未涂覆侧的光反射(LRv)低于30%,优选8%至23%,且更优选10%至18%。
12.依照任一前述权利要求的涂覆的基底,其特征在于该一个或多个红外反射层的总厚度大于10nm,优选13至40nm,且更优选18至35nm。
13.依照任一前述权利要求的涂覆的基底,其特征在于相对于玻璃的反射颜色具有0至-10的色度指数ag *,优选-1至-8,而色度指数bg *的范围是0至-20,优选为-1至-15,且更优选-1至-10。
14.包含依照任一前述权利要求的涂覆的基底的窗玻璃,其特征在于该窗玻璃的日光系数小于35%,优选小于30%,且更优选小于26%。
15.依照前述权利要求的窗玻璃,其特征在于选择性(LT/SF)高于1.3,优选高于1.5。
16.依照权利要求15和16中任何一个的窗玻璃,其特征在于相对于外侧的反射颜色具有0至-10的色度指数ag *,优选-1至-8,而色度指数bg *的范围是0至-20,优选为-1至-15,且更优选-1至-10。
17.依照权利要求14至16中任何一个的窗玻璃,其特征在于它包含具有如下性质的涂覆的基底:LT在30%至55%之间,相对于未涂覆侧的LR在8%至25%之间,并且相对于未涂覆侧的色度指数a*在0至-8之间,而b*在0至-20之间。
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EP03102196A EP1498397A1 (fr) | 2003-07-16 | 2003-07-16 | Substrat revêtu à très faible facteur solaire |
EP03102196.7 | 2003-07-16 |
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US (1) | US8017244B2 (zh) |
EP (2) | EP1498397A1 (zh) |
CN (1) | CN1823023A (zh) |
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- 2004-07-16 CN CNA2004800203570A patent/CN1823023A/zh active Pending
- 2004-07-16 US US10/564,683 patent/US8017244B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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EP1498397A1 (fr) | 2005-01-19 |
WO2005012200A1 (en) | 2005-02-10 |
US8017244B2 (en) | 2011-09-13 |
US20060246300A1 (en) | 2006-11-02 |
EP1651582A1 (en) | 2006-05-03 |
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