CN113445864A - 用于接合建筑构件,尤其是窗户和入户门的接缝的隔热及密封系统 - Google Patents
用于接合建筑构件,尤其是窗户和入户门的接缝的隔热及密封系统 Download PDFInfo
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Abstract
本发明涉及一种用于接合建筑构件,尤其是窗户和入户门的接缝的密封系统,包括两个前层,所述两个前层包含固定所述系统并密封隔热材料的材料。前层中的一个是位于建筑构件内部的内部层,另一个前层是位于建筑构件外部的外部层。外前层包括使得等效扩散阻力系数(Sd)不大于2m的材料,而内前层包括使得等效扩散阻力系数(Sd)等于或大于30m的材料。内前层包括低渗透性成分,而外前层包括蒸气可渗透成分。
Description
技术领域
本发明涉及一种用于对接合的建筑构件,尤其是窗户和入户门(exterior door)进行密封及隔热的接缝,以密封且隔热的接缝的形式来调节在垂直开口面(reveal)和框(frame)之间的整个接缝的与热和湿度相关的性能。本发明用于隔热且同时对接缝进行密封,以执行在垂直开口面与窗框或门框之间的密封。本发明涉及用于建筑物结构中的门和窗户的开口中的门框和窗框以及百叶窗(shutter case)的隔热和密封。
背景技术
已知将聚氨酯泡沫塑料用作为窗户隔热。常见的聚氨酯泡沫塑料以芳香族异氰酸酯为基础,所述芳香族异氰酸酯通常是各种取代形式的TDI二异氰酸酯的异构体的混合物以及各种取代形式的MDI(甲基二苯基二异氰酸酯)的混合物;而包含聚酯或聚醚的末端带有羟基的低聚物用作多元醇。
波兰专利第213303号提供了一种用于生产聚氨酯泡沫塑料的单成分组合物的叙述,所述聚氨酯泡沫塑料含有预聚物、发泡剂(porophor)和表面活性剂的混合物。其包含游离异氰酸酯基团作为预聚物,所述游离异氰酸酯基团的含量占由多异氰酸酯与多元醇混合物反应产生的预聚物的12至17重量%。所述多元醇混合物包含:第一多元醇,其为分子量为600至2500的三醇;以及第二多元醇,其为分子量为6000至10000的二醇、三醇或其混合物。第一多元醇与第二多元醇的重量比为1:6至1:2。其包含选自烷、醚、酮、羧酸烷基酯、卤化烃及其混合物的化合物作为发泡剂。将聚(烷基硅氧烷)和亚烷基聚乙烯的反应产物用作表面活性剂,而环氧烷为环氧乙烷、环氧丙烷或环氧丁烷,其量相对于组合物的总重量为0.5至4重量%。
专利说明书EP1 672 161提出了一种用于建筑构件的接缝的密封胶,所述建筑构件在接缝的内部区域中包含隔热材料,并且在接缝边缘的至少一个前部区域中包含密封胶。所述隔热材料由单成分的湿气固化的柔性聚合物泡沫塑料组成,所述密封材料由与所述隔热材料直接相邻的防蒸气扩散密封胶制成。其中,所述密封胶为单成分且湿气固化的密封胶,且可在固化前注入。所述密封材料的弹性基本上等于或大于所述隔热材料的弹性。
根据DE 197 25 705,通过安装泡沫塑料使垂直开口面和框之间的接缝隔热。随后,从外部用不限定的弹性材料使建筑构件的接缝形成水密,其中,所述弹性材料被从外部施涂到安装用泡沫塑料(mounting foam)上。FR 2 045 283的描述提出了一种接缝密封胶,其中,与建筑物结构的连接通过内部隔热层及水密且气密的外部层进行,其中,所述内部隔热层例如由合成纤维素材料制成,所述水密且气密的外部层在两侧上封闭内部层。
GB 2 110 282 A提出了一种接缝密封胶,其中,铰接的门与车体之间的接缝通过永久弹性黏合剂在两个外侧被密封,在接缝密封材料的中间具有可选的填充条,所述填充条例如由泡沫塑料材料制成。
然而,仍在寻求用于对窗户和入户门进行隔热的更好且更耐久的材料,以及调节在垂直开口面和框之间的水蒸气的流动的系统和消除不受控的空气渗透的系统。这些解决方案将提高接缝的能量效率和声效率。
发明内容
因此,本发明的目的是开发并提供一种用于对建筑中,尤其是窗户和入户门的接缝同时进行隔热和密封的材料系统,其可以受控的方式调节接缝中的热量和湿气的流动,同时消除不受控的空气渗透,并且易于施涂。
根据本发明,所述隔热及密封系统的层数旨在形成一种具有三个层的系统:两个前层,一个位于建筑物的外部,一个位于建筑物的内部,所述前层一起形成密封及固定层;以及一个中间层,位于所述前层之间,在垂直开口面和框之间的区域进行隔热。特意选择了具有不同的等效扩散阻力系数Sd的前层,以确保如上所述的适当接缝性能。因此,已经开发出具有三个层的系统:外前层+隔热中间层+内前层。
本发明涉及一种用于建筑构件的接缝的隔热及密封系统,其中,在所述系统的中央区域中包含隔热材料,并且在隔开的前部区域(外部和内部)中包含密封及固定材料,所述系统用于调节热量和湿气的流动,并消除不受控的空气渗透。根据本发明,开发了一种用于对窗户和入户门进行隔热的用于隔热及密封接缝的三层系统。其以(包括)三个主要成分为基础:基于聚氨酯泡沫塑料的隔热材料,位于中间区域中;低蒸气渗透性(接近蒸气密封)的密封材料,位于将建筑物内部与接缝的中间区域隔开的内部接缝的前部区域中;以及蒸气可渗透密封材料,位于将建筑物的外部与接缝的中间区域隔开的接缝的外部区域中。前层由液体箔密封材料制成。
根据本发明,将聚氨酯泡沫塑料和液体箔形式的密封化合物组合成一种调节接缝中热量和湿气流动的系统,消除了通过接缝的不受控空气渗透,这提高了接缝的热效率和声效率,并消除了接缝和框的生物降解可能性。
根据本发明,所述系统包括:基于聚氨酯泡沫塑料(PU泡沫塑料)的隔热材料,位于接缝的中央、中间区域中;低蒸气渗透性(接近蒸气密封)的材料,位于内前部区域中,固定所述系统,并从建筑物内部密封所述接缝的隔热材料;以及蒸气可渗透材料,位于外前部区域中,固定所述系统,并从建筑物外部密封所述接缝的隔热材料,同时,所述两个密封层形成所述系统的前层。
本发明提供了将聚氨酯泡沫塑料用于所述整个系统的接缝的中央、中间区域中,而将液体箔用于所述前密封层(固定及密封用,并调节热量和湿气的流动)的用途。其中,所述液体箔可以基于以下材料制成,例如:MS聚合物、聚硅氧(silicone)、丙烯酸和/或聚硅氧分散液、苯乙烯-丁二烯树脂、聚氨酯、硅烷化的聚氨酯、环氧树脂、沥青(bitumen)、沥青(asphalt)、天然橡胶、橡胶、丁烯化合物、多硫化合物、硅酸盐化合物。重要的是,所述前层被分为:外前层,将用聚氨酯泡沫塑料隔热材料进行隔热的接缝的中央区域与建筑物的外部隔开;内前层,将用聚氨酯泡沫塑料隔热材料进行隔热的接缝的中央区域与建筑物的内部隔开。
前层是具有适当选择及开发的等效扩散阻力系数Sd的值的密封产品。
将建筑物外部与中央区域(PU泡沫塑料)隔开的外前层是蒸气可渗透层,其等效扩散阻力系数允许从接缝中排出可能由于建筑物的外部和内部之间的水蒸气的分压差而产生的湿气。其是一种具有适当选择的成分的材料,以确保在此外前层和填充有PU泡沫塑料隔热材料的中间接缝区域之间形成紧密、耐久而又允许扩散的接缝。
将建筑物内部与接缝的中央区域(PU泡沫塑料)隔开的内前层是低蒸气渗透性(接近蒸气密封)层,其等效扩散阻力系数允许调节由建筑物内部与内部之间的水蒸气的分压差所产生的朝向接缝的水蒸气的扩散速率。其是一种具有适当选择的成分的材料,以确保在此外前层和填充有PU泡沫塑料隔热材料的中央接缝区域之间的紧密、耐久且蒸气密封的接缝。
附图说明
图1示出本发明的系统的方案。
具体实施方式
中央隔热区域以PU泡沫塑料形式密封在包含两种不同的液体箔的前部区域中,所述两种不同的液体箔(密封化合物)为:内部液体箔和外部液体箔,具有不同的蒸汽阻隔性能。所述两种产品均通过蒸发水而硬化,但是他们属于不同的化学基团。为了确保产品的环境永续性,配方中使用的密封胶完全不含有机溶剂。
形成(在外前部区域中的)外部层的产品以液膜形式施涂,这意味着固化后其弹性基本上等于或大于隔热材料的弹性。构成(在内前部区域中的)内膜的产品以液膜的形式施涂,其根据EN ISO 527的液膜的断裂伸长率为至少40%。
经过分析并考虑了专家的经验,发现如果外前层的等效扩散阻力系数(Sd)不大于2m(即,其为蒸气渗透性层),而内前层的Sd等于或大于30m(即,其为接近蒸气密封的低蒸气渗透性层),则可获得最佳结果。
根据本发明的整个系统包括:外部液体箔(在前部区域中,位于建筑物外部的一侧)+PU泡沫塑料的隔热层(接缝的中间层)+内部液体箔(在前部区域中,位于建筑物内部的一侧),并且因此构成了从建筑物内部到建筑物外部的调节水蒸气流量的统一系统。在建筑物内部和外部的水蒸气的具有足够的分压差的情况下产生水蒸气的流动。同时,这样的系统是有效的屏障,可以防止通过垂直开口面和框之间的接缝的不受控空气渗透。此外,其保护接缝免受生物降解,并提高接缝的热效率和声效率。
外部液体箔(施涂于外前部区域)以反应性丙烯酸和聚硅氧分散液的混合物为基础,其具有低Sd系数(小于或等于2.0m,优选地等于或小于1.5m),且固化后对温度变化和UV辐射具有高抗性。膜的干燥及固化非常快(为此类型的标准系统的两倍速度),其可以施涂到非常高温(甚至+80℃)和非常低温(+5℃)的表面上。固化后,其防止密封元件过热。其易于施涂,可以在固化前用水去除。即使固化后经过很长时间,也可以使用相同的材料修复所述涂层。而且,其与典型的建筑材料具有高度兼容性。
在建筑物的外部(在前部区域中),所述密封层是用蒸气可渗透且抗UV的材料制成的。由于在外部使用了蒸气可渗透材料,湿气可以从接缝的中央区域自由扩散到建筑物的外部。当建筑物内部与外部之间的水蒸气的分压差增加了水蒸气通过接缝扩散的强度时,这一点尤其重要。这种情况尤其发生在外部空气的相对湿度增加(高于55%)时,或发生在施涂完成当下,由于建筑物结构中大量的技术用水而增加建筑物中的空气的相对湿度时。用液体蒸气可渗透箔制成的外前部密封材料提供了一种简便的方法,以从接缝的中间区域去除过多的湿气,并防止此区域中,即,在聚氨酯泡沫塑料隔热层中凝结出冷凝形式的水(这有助于提高泡沫塑料的隔热性能的耐久性)。
在建筑物的内部(内前部区域中)使用的密封化合物是胶乳,具有等于或大于30m的高Sd系数,即,其为低蒸气渗透性(接近蒸气密封)产品。这种密封胶的应用可调节水蒸气从建筑物内部到隔热PU泡沫塑料的接缝的中间区域的过量流入。这种密封胶在干燥时会颜色。其易于使用,可以在固化前用水去除。即使固化很长时间,也可以使用相同的材料修复所述涂层。固化后,由于其成分的中PP纤维的比例很高,因此所述产品具有很高的抗性。其与典型的建筑材料具有高度兼容性。
特别地,丁二烯-苯乙烯树脂用作内部箔的基础,而丙烯酸分散液用作外部箔的基础。在建筑物的外部(外前部区域中)使用的密封化合物以以下成分的混合物为基础:玻璃化转变温度(glazing temperature)为0℃至-40℃的反应性丙烯酸分散液;0.1%至1.0%的氧化锌;0.5%至2.0%的二氧化硅;以及5.0%至10%的聚硅氧分散液。第二密封化合物(内前层)以玻璃化转变温度为0℃至-20℃的丁二烯苯乙烯胶乳为基础,并添加有聚丙烯纤维。
在接缝的中间区域中使用聚氨酯泡沫塑料,因为其为具有高隔热和隔音参数(导热系数≤0.036W/mk,最小隔音量55dB)的材料。隔热材料由单成分的湿气固化的柔性聚合物泡沫塑料组成。
所述聚氨酯泡沫塑料包含异氰酸酯成分和多元醇预混物,所述多元醇预混物包含多元醇成分、发泡剂、表面活性剂、催化剂。其特征在于,所述多元醇预混物包含1,3-丁二醇,其含量为多元醇预混物的至少0.5重量%。
优选地,其包含催化剂:2,2’-二吗啉基二乙基醚,催化剂在所述组合物中有利地构成所述多元醇预混物的至少3重量%。
优选地,所述泡沫塑料包括至少为所用催化剂量的0.1重量%的催化抑制剂。
优选地,所述泡沫塑料包括分子量为2000和700的聚醚的混合物,所述聚醚的混合物有利地构成所述多元醇预混物的至少10重量%。
优选地,所述泡沫塑料包括诸如丙烷、异丁烷和二甲醚的气体的混合物作为发泡剂。
优选地,所述泡沫塑料包括碳酸盐和/或乙酸盐作为黏度调节添加剂。
优选地,所述泡沫塑料包括四氟乙烷和/或二氟乙烷。优选地,所述泡沫塑料包括丙烯碳酸盐(propylene carbonate)。
使用三层系统允许了控制整个接缝的与热和湿度相关的性能,即,以确保接缝的有效隔热和隔音的方式来控制流过接缝的湿气。这延长了包含密封材料中使用的聚氨酯泡沫塑料的整个接缝的寿命和耐久性参数。而且,其简化了对接缝进行的耐久且适当作用的密封及隔热的程序和执行。
所述系统中包含的成分彼此兼容,并与其他建筑材料兼容,例如:PVC、金属、铝、木材、加气混凝土、硅酸盐、建筑陶瓷、混凝土、砂浆、室内石膏、外墙石膏、膨胀聚苯乙烯EPS、挤塑聚苯乙烯XPS。
对外前部箔的要求是等效扩散阻力系数Sd不大于2m,而对内前部箔要求是Sd等于或大于30m[根据PN-EN ISO 12572:2004;PN-EN 1504-2:2006用于混凝土结构的保护和修复的产品和系统-定义、要求、质量控制和符合性评定-第2部分:混凝土表面保护系统;ETAG004-2013带有渲染的薄抹灰外墙保温复合系统]。
其它特征:
以水为基础,不含溶剂;
可重复使用,延长产品寿命;
耐霉菌和真菌;
由于使用了整个系统,聚氨酯泡沫塑料可以长时间保持其正面性能(热导率≤0.036W/mk,最小隔音量55dB);
对UV光的高抗性;
健康与环境-系统的任何成分均不会释放有害物质;
可水洗;
施涂简单方便;
使用简单。
在以下实施例和附图中示出了本发明,附图示出了放置在窗框或门框的侧柱(jamb)和建筑物的外牆之间的空间中的所述系统的方案。
实施例1
所述系统的方案示于图1。斜线代表建筑物的建筑构件的内部,例如公寓中的房间。所述系统包含:两个前层(内前层WCW和外前层WCZ)、在中间的(隔热部分)中间层WS。所述系统作为接缝安装在建筑物的窗框或门框(O)与墙壁之间的空间中。
以下组成比例的以下成分已用于制备密封形式的窗户隔热系统的一实施例,如表1至表3所示。
聚氨酯泡沫塑料的组合物包含已知的异氰酸酯成分和多元醇成分。所述多元醇成分包含一起形成多元醇预混物的额外成分以及发泡成分:气体混合物。
所述组合物包含390克的聚合MDI(二苯甲烷二异氰酸酯)作为异氰酸酯成分。在本发明的六个实施例变化中的多元醇预混物和气体混合物的精确的定性和定量组成示于表1。
泡沫塑料组合物如下获得:用调配装置将390克的聚合MDI(二苯甲烷二异氰酸酯)添加到喷雾罐中。随后将含有表中所示的成分的多元醇预混物添加到所述罐中,对于此特定实施例,所述多元醇预混物为290克。上述两种成分形成聚氨酯预聚物。然后用已知的方法(喷枪阀或手动喷枪)封闭所述罐。通过阀来注入处于液相压力的气体。其定量和定性组成示于表中。
外前部密封材料由表2中指示的成分制备。
所述产品在四个阶段中制造。在第一阶段中,将所述分散液的部分均质化。丙烯酸成分含量基本上不得低于36%。所述分散液与至少3%的聚硅氧分散液和液态二氧化硅结合,优选地与Nouryon Levasil CC结合。根据表2,向所述均质化的分散液系统中添加填料。在添加下一种填料后,有必要检查稀释度。当稀释填料时,应谨慎添加固化剂。如果是氧化锌,则必须在此阶段控制稀释度。如果是聚碳酰亚胺(polycarboimide),则确保其在系统中完全均质化是重要的。最后步骤包括添加安全剂(safener),以从生物学方面保护系统,因为所述产品可能会暴露于生物腐蚀剂中。
内前部密封材料由表3指示的成分制备。
所述产品在四个阶段中制造。在第一阶段中,如有必要,将所述分散液均质化。确保所述分散液不小于所述系统的50%是重要的。下一阶段包括添加液体添加剂,所述添加剂影响最终的应用参数。在此阶段中,添加了流变改性剂。来自亚什兰(Ashland)的流变改性剂Aquaflow XLS 525是最佳选择。在第三阶段中,按照表3所示的顺序添加填料。在添加下一种填料后,有必要检查稀释度。最后的填料是黑色氧化铁。在此阶段中,控制所述系统的完全均质化尤其重要。在第四阶段中稀释填料后,应谨慎添加纤维。其量不得低于0.3%。
最终产品-窗户隔热系统的一实施例已制备如下。
在接合组装期间,将密封系统应用于垂直开口面与门框或窗框之间的空间。
前层延长了所述系统的中央区域中使用的聚氨酯泡沫塑料的寿命和耐久性参数。构成所述系统的产品与其他建筑材料兼容,例如:PVC、金属、铝、木材、加气混凝土、硅酸盐、建筑陶瓷、混凝土、膨胀黏土骨料、砂浆、室内石膏、外墙石膏、膨胀聚苯乙烯EPS、挤塑聚苯乙烯XPS。
使用上述成分,根据以下流程/活动制备了实施例系统:
在框和垂直开口面之间的裂缝(窗户/门)的中间区域中应用聚氨酯泡沫塑料,因为其为具有高隔热和隔音参数(导热系数≤0.036W/mk,最小隔音量55dB)的材料。
完全固化后,将所述泡沫塑料切下,并将液态形式的窗箔,即膜放置在顶部以形成前层,以便使其覆盖整个聚氨酯泡沫塑料并与窗框和垂直开口面(以及锚板)重迭。为了防止窗框变脏,可以用遮蔽胶带将其覆盖。
所述泡沫塑料在内部(在内前部区域)覆盖有低蒸气渗透性(接近蒸气密封)膜。此材料应构成对水蒸气的足够屏障,以使其不会不受控地渗透到密封的中间区域(PU泡沫塑料)中且不会液化。使用专用的柔性刮刀或墙壁油漆刷将其均匀施涂。在垂直裂缝中,其应从窗户底部开始施涂,然后向上移动施涂器。所述涂层在施涂后仍保持湿润时的厚度应为最小2mm。如有必要,可以根据基材的孔隙率和条件而施涂数个层(只要保持建议的厚度即可)。如果将产品包装在膜中,则必须使用用于以膜包装的产品的专用挤压分配器来施加涂层。如有必要,框应使用遮蔽胶带保护,所述遮蔽胶带可以在施涂液体箔后移除。在施涂后应立即以水清洗工具。
所述泡沫塑料在外部(在前部区域中)覆盖有蒸气可渗透且抗UV的液体箔。由于在外前部使用了蒸气可渗透材料,湿气可以从接缝的中央区域自由扩散到建筑物的外部。这确保了避免在接缝的中间区域产生任何凝结。
当建筑物内部与外部之间的水蒸气的分压差增加了水蒸气通过接缝扩散的强度时,这一点尤其重要。这种情况尤其发生在外部空气的相对湿度增加(高于55%)时,或发生在施涂完成当下,由于建筑物结构中大量的技术用水而增加建筑物中的空气的相对湿度时。用液体蒸气可渗透箔制成的外前部密封材料提供了一种简便的方法,以从接缝的中间区域去除过多的湿气,并防止此区域中,即,聚氨酯泡沫塑料隔热材料中凝结出冷凝形式的水(这有助于提高泡沫塑料的隔热性能的耐久性)。
使用专用的柔性刮刀或墙壁油漆刷将其均匀施涂。在垂直裂缝中,其应从窗户底部开始施涂,然后向上移动施涂器。所述涂层在施涂后仍保持湿润时的厚度应为约1mm。如有必要,可以根据基材的孔隙率和条件而施涂数个层(只要保持建议的厚度即可)。如果将产品包装在膜中,则必须使用用于以膜包装的产品的专用挤压分配器来施加涂层。施涂后立即移除胶带,并以水清洗工具。
表1:中间区域中使用的隔热材料的实施例
表2:Sd系数小于2.0m的密封胶配方的实施例(外前部密封胶(层))
表3:Sd系数等于或大于30.0m的密封胶配方的实施例(内前部密封胶(层))
实施例2
本发明-系统的性能测试
本发明的预期结果,即,窗框或门框的侧柱和建筑物的外牆之间的接缝的适当、耐久且有效的作用,根据在表2C中示出的标准来控制。
已达成以下结果,并示于表2C。
这些结果证明了兼容的密封和隔热材料的三层系统具有说明书中指定的参数,尤其是:
内部液体箔Sd≥30m;
泡沫塑料PUλ≤0.036;
外部液体箔Sd≥2m;
确保了整个接缝具有与热和湿度相关的性能适当受控,即控制了通过接缝的湿气流动,并消除了通过接缝的不受控空气渗透。这提高了接缝的热效率和声效率,并最终减少了整个建筑物的碳足迹。
这些特征示于表2A和2B。表2C的结果表明,所述系统在被动式节能建筑物的方向上满足节能建筑物的条件。
表2A:示于实施例中的外前部密封胶配方的关键参数
表2B:示于实施例中的外前部密封胶配方的关键参数
所述系统将所实施的接缝的易用性与有益特性相结合,例如:
表2C
性质 | 参数 | 标准 |
耐雨水性 | 压力≤600Pa | PN-EN1027 |
耐雨水性 | 第9A级(class9A) | PN-EN12208 |
透气性 | 压力≤600Pa | PN-EN12207 |
透气性 | 第4级(class4A) | PN-EN12207 |
透气性 | Q<sub>L</sub>≤0.46m<sup>3</sup>/hm | PN-EN12207 |
透气性 | a≤0.1[m<sup>3</sup>/hm(daPa)<sup>2/3</sup>] | DIN4108-2 |
本发明构成了一种兼容的三层系统,用于对窗框或门框的侧柱和建筑物的外牆之间的接缝进行隔热和密封。其通过适当选择的Sd系数,即,接缝中受控且受限的湿气流动,来确保接缝的与热和湿度相关的性能受控,并消除了通过接缝的不受控空气渗透。这提高了接缝的热效率和声效率,并最终减少了整个建筑物的碳足迹。
Claims (14)
1.一种用于接合建筑构件,尤其是窗户和入户门的接缝的密封系统,在所述接缝的中间区域中包括聚氨酯泡沫塑料形式的隔热材料,且在所述接缝的前部区域中包括密封胶,其特征在于:所述系统包含两个前层,所述前层包含固定所述系统并密封所述隔热材料的材料;其中,所述前层中的一个是位于所述建筑构件的内部的内前层,所述前层中的另一个是位于所述建筑构件的外部的外前层;其中,所述外前层包括使得等效扩散阻力系数(Sd)不大于2m的材料,而所述内前层包括使得等效扩散阻力系数(Sd)等于或大于30m的材料;并且,所述内前层包括低渗透性成分,而所述外前层包括蒸气渗透性成分。
2.如权利要求1所述的系统,其特征在于,所述前层由液体膜形成,其中,所述外前层的膜固化后的弹性通常等于或大于所述隔热材料的弹性;并且,对于所述内前层,所述液体膜根据ENISO 527的断裂伸长率为至少40%。
3.如权利要求1或2所述的系统,其特征在于,将苯乙烯-丁二烯树脂使用作为所述内前层的基础,并且将丙烯酸和/或聚硅氧分散液使用于所述外前层。
4.如权利要求1至3中任一项所述的系统,其特征在于,所述外前层以以下成分的混合物为基础:玻璃化转变温度为0℃至-40℃的反应性丙烯酸分散液;0.1%至1.0%的氧化锌;0.5%至2.0%的二氧化硅;以及5.0%至10%的聚硅氧分散液;并且所述内前层以玻璃化转变温度为0℃至-20℃的丁二烯苯乙烯胶乳为基础,并添加有聚丙烯纤维。
5.如权利要求1所述的系统,其特征在于,所述聚氨酯泡沫塑料包含具有高隔热参数和高隔音参数的材料(导热系数≤0.036W/mk,最小隔音量55dB)。
6.如权利要求1或5所述的系统,其特征在于,所述聚氨酯泡沫塑料包含异氰酸酯成分和多元醇预混物,其中,所述多元醇预混物包含多元醇成分、发泡剂、表面活性剂和催化剂;同时所述多元醇预混物包含1,3-丁二醇,所述1,3-丁二醇的含量为所述多元醇预混物的至少0.5重量%。
7.如权利要求1、5或6所述的系统,其特征在于,所述聚氨酯泡沫塑料包含催化剂:2,2’-二吗啉基二乙基醚,所述催化剂在组合物中构成所述多元醇预混物的至少3重量%。
8.如权利要求1、5、6或7所述的系统,其特征在于,所述聚氨酯泡沫塑料包括含量至少为所述催化剂的用量的0.1重量%的催化抑制剂。
9.如权利要求1、5、6、7或8所述的系统,其特征在于,所述聚氨酯泡沫塑料包括分子量为2000和700的聚醚的混合物,所述聚醚的混合物构成所述多元醇预混物的至少10重量%。
10.如权利要求1、5、6、7、8或9所述的系统,其特征在于,所述聚氨酯泡沫塑料包括诸如丙烷、异丁烷和二甲醚的气体的混合物作为所述发泡剂。
11.如权利要求1、5、6、7、8、9或10所述的系统,其特征在于,所述聚氨酯泡沫塑料包括碳酸盐和/或乙酸盐作为黏度调节添加剂。
12.如权利要求1、5、6、7、8、9、10或11所述的系统,其特征在于,所述聚氨酯泡沫塑料包括四氟乙烷和/或二氟乙烷和/或丙烯碳酸盐。
13.如权利要求1所述的系统,其特征在于,在内前部区域中使用接近蒸气密封的低蒸气渗透性密封材料作为所述前层,从而将使用所述聚氨酯泡沫塑料进行隔热的所述接缝的所述中间区域与建筑物的内部隔开;而在外前部区域中使用蒸气可渗透密封材料作为所述前层,从而将使用所述聚氨酯泡沫塑料进行隔热的所述接缝的所述中间区域与所述建筑物的外部隔开。
14.如权利要求1所述的系统,其特征在于,形成所述前层的所述密封胶是一层液体箔,所述液体箔含有位于所述接缝的内前部区域的密封材料,其将建筑物的内部与所述接缝的所述中间区域隔开,且为固定所述系统的接近蒸气密封的低蒸汽渗透性材料;在所述接缝的所述中间区域中采用所述聚氨酯泡沫塑料形式的隔热材料;并且,形成在所述接缝的外侧的所述前层作为所述密封胶,将所述建筑物的外部与所述接缝的所述中间区域隔开,且为固定所述系统的蒸气可渗透材料。
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