CN104582963A - 制造耐火泡沫隔热板的方法 - Google Patents

制造耐火泡沫隔热板的方法 Download PDF

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Publication number
CN104582963A
CN104582963A CN201380040096.8A CN201380040096A CN104582963A CN 104582963 A CN104582963 A CN 104582963A CN 201380040096 A CN201380040096 A CN 201380040096A CN 104582963 A CN104582963 A CN 104582963A
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China
Prior art keywords
layer
fibrofelt
thickness
resin composition
metal
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CN201380040096.8A
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CN104582963B (zh
Inventor
L·洛蒂
M·关达利尼
P·戈利尼
L·L·伯图塞利
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Dow Global Technologies LLC
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Dow Global Technologies LLC
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Abstract

本发明公开了一种用于制备具有厚度(为0.2mm到1.0mm)的金属覆面板和纤维增强芯的隔热板的连续工艺。在该工艺中，连续地供应底部金属覆面板(2)。增强纤维毡(10)和发泡树脂组合物(19)被施加到底部覆面板。柔性阻隔层(5)被施加到发泡树脂组合物上面，并该组件通过轧辊(12，13)，以压缩该组件并迫使树脂组合物进入到纤维毡中。然后，粘结剂层(4)和顶部金属覆面层(1)被施加到柔性阻隔层顶部，并且通过使其通过双带层压机(11)，所得到的组件被规定化并固化。

Description

制造耐火泡沫隔热板的方法
技术领域
本发明涉及用于制造具有金属覆面片的泡沫合成板的方法。
背景技术
隔热板广泛用于为家庭、建筑物、冷储设施、船只和其他结构提供隔热。一种类型的隔热板包括聚合泡沫芯和金属片覆面板。这种类型的结构能够提供隔热、机械强度和耐火性能的良好组合。由于若干原因，可能希望在聚合物泡沫层内包含纤维增强物。纤维增强物能提高板的物理性能和在耐火测试中的表现。
可以用各种工艺来制造隔热板。使用不同的工艺取决于面层的类型和芯材料。已知的是，当面层是非常薄、柔软的材料时，在单个连续的工艺中制造隔热板。当板包含两个较厚的金属覆面板时，尤其是当聚合物芯也要被纤维增强时，连续制造变得更加困难。在单次操作中，用聚合泡沫浸渍纤维增强物、使泡沫膨胀并施加覆面片，变得困难。因为这种情况，这些板的制造被分成若干单独的制造工艺。这会增加装备和操作成本。需要一种更加有效而且经济的用于制造这些板的工艺。
发明内容
本发明是一种用于制备具有金属覆面片的泡沫层压件的连续工艺，包括：
a)连续地将包括厚度为0.2mm到1.0mm的金属层的底部金属覆面片供应到移动表面上；
b)连续地将纤维毡和可固化发泡树脂组合物施加到移动的底部金属覆面片上；
c)在使发泡树脂组合物完全膨胀之前，连续地将一层柔性阻隔材料施加在纤维毡和泡沫形成树脂组合物的顶部；
d)在使发泡树脂组合物完全膨胀之前，使底部金属覆面层、纤维毡、树脂组合物和柔性阻隔材料连续地通过一个收缩区域，以将底部金属覆面层、纤维毡、树脂组合物和柔性阻隔材料压在一起，使得树脂组合物被挤进并浸渍纤维毡，并且使柔性阻隔材料与树脂组合物接触；
e)然后将一层粘结剂层连续地施加在柔性阻隔材料层的顶部；
f)然后将包括厚度为0.2mm到1.0mm的金属层的顶部金属覆面层连续地施加在粘结剂层顶部，以及
g)将所得到的组件通过双带层压机，以使顶部金属覆面层与粘结剂层接触，将该组件规格化为预定厚度，并且固化树脂组合物、粘结剂层，或者树脂组合物和粘结剂层二者，以形成泡沫层压件。
这种工艺允许在单个的、连续的操作中制造具有两个金属覆面层和一个纤维增强聚合泡沫芯的隔热板。该工艺允许纤维毡用可固化发泡树脂组合物良好地浸渍，这实现了聚合物泡沫层的良好纤维增强，并进而实现了良好的机械性能。这个工艺因此要求更少的装备，需要更小的成本，并且生产出的产品具有标准耐火测试中指明的优异隔热能力和优异的耐火性。
本发明工艺的产品是一种隔热板，至少含有下面的层：底部金属覆面片，包括厚度为0.2mm到1.0mm的金属层；聚合泡沫层，在其至少一部分厚度上用纤维毡进行增强，所述聚合泡沫层被直接或间接地粘结到底部金属片；一层柔性阻隔材料，粘结到纤维增强的聚合泡沫层；粘结剂层，粘结到该层柔性阻隔材料；以及顶部金属覆面片，具有0.2mm到1.0mm的厚度，用粘结剂层粘结到该层柔性阻隔材料。各种可选用的层可以***进该工艺中，如下面更充分的描述。
附图说明
图1是本发明工艺一个实施例的示意图。
图2是根据本发明生产的隔热板的一个实施例的横剖视图。
图3是本发明工艺一部分的一个替换实施例的示意图。
图4是本发明工艺一部分的第二替换实施例的示意图。
具体实施方式
参见图1，底部金属覆面片2被连续供应而形成移动的底部覆面片。随后引入的材料被放置到该底部覆面片上面。底部金属覆面片2可以使用各种类型的机械装备来供应和移动。例如，金属覆面片2可以被供应到移动的平台上面，诸如环形带、一系列从动辊、拉幅机或其他设备。金属覆面片2可以利用双带层压机11被拉曳通过该工艺，或者通过一些其他的下游拉曳装置(未示出)。
纤维毡10和可固化发泡树脂组合物19被施加到移动的底部金属覆面片2上面。在所示实施例中，树脂组合物19放置在纤维毡10的上游。但是，如图3和图4所示，将树脂组合物19放置在纤维毡10的下游，也是可以的。将纤维毡10和树脂组合物19放置在该工艺中的相同位置处，也是可以的。
纤维毡10可以用任何合适装备放置，包括图1所示的一系列辊16。一旦放置，纤维毡10就可以由金属覆面片2运载通过该工艺，或者与金属覆面片2一起被推送和/或拉曳通过该工艺。
可固化发泡树脂组合物19类似地可以使用包括本领域公知类型的各种类型分配装备进行放置。例如，合适的装备包括横贯软管、一个以上固定混合头、一个以上喷嘴，或者其他合适的用于分配流体的设备。在图1中，这种分配设备总体上用附图标记A标示。用于放置可固化发泡树脂组合物的装备也可以包括用于存放该树脂组合物组分的各种罐或其他容器、用于计量这些组分和/或配制的树脂组合物的计量装置、用于混合这些组分以形成该树脂组合物的混合装置、用于将树脂组合物的组分从其各自的存放容器输送到并通过混合装置并且/或者通过分配设备的泵送装置。用于混合和分配可固化发泡树脂组合物的合适装备可以从商业途径获得，例如从Cannon、SAIP和Krauss Maffei获得。
如果需要，分配的树脂组合物可以在该工艺的这个位置处使用诸如像一组轧辊或刮片等装备形成层并且/或者进行规格化。
再参见图1，一层基本上无孔的柔性材料5被连续施加在纤维毡10和树脂组合物19的顶部。柔性材料5是在树脂组合物19完全膨胀之前施加的。树脂组合物19通常一被放置就开始反应并膨胀，并且在某些情况下甚至可以边被放置、边膨胀。相应地，如图1所示，当施加柔性材料5时，发泡树脂组合物19可能已经部分膨胀。反应慢的树脂组合物在这个位置处可能没有明显地膨胀。在任何一种情况下，柔性材料5都要在树脂组合物19已完全膨胀之前放置。
所得到的组件包括底部金属覆面层2、纤维毡10、树脂组合物19和柔性材料5，该组件接着被连续通过收缩区域14。这个步骤是在发泡树脂组合物19完全膨胀之前进行。收缩区域14所具有的高度不大于并优选地稍小于(像2～25％)各层就在进入收缩区域14之前的组合高度。因此，底部金属覆面层2、纤维毡10、树脂组合物19和柔性材料5在收缩区域14被压在一起。在材料通过收缩区域14时，树脂组合物19被挤进纤维毡10并浸渍纤维毡10，然后底部一侧的柔性材料5与树脂组合物19接触。
在图1所示实施例中，收缩区域14由辊12、13限定。辊12、13分开预定距离设定，这个预定距离又限定了收缩区域14的高度。
离开收缩区域14的组件包括浸渍有树脂组合物19(可能部分膨胀)的纤维毡10的层17。层17被夹在底部金属覆面层2和柔性材料5之间。因为柔性材料5用作阻隔层，所以，树脂组合物19与其底部表面接触但没有渗透过底部表面，并且因此不会接触限定收缩区域14的辊12或其他机械装置。
在组件离开收缩区域14之后，粘结剂层4被连续施加在柔性材料5的顶部。各种类型的分配、混合、计量、涂布以及/或者规格化装备，可以用来形成粘结剂层4，包括上面针对树脂组合物19描述的那些类型。在图1中，这种分配装备总体上用附图标记B标示。树脂组合物19在施加粘结剂层4的位置处可以没有膨胀、部分膨胀或完全膨胀。在图1所示的实施例中，树脂组合物19在粘结剂层4被引入的位置处仅仅部分地膨胀了。
在施加顶部金属覆面层1之前，树脂组合物19可以至少部分膨胀并且/或者部分固化。部分固化可有助于膨胀中的树脂组合物支撑顶部金属覆面层1。如上所述，膨胀可以发生在施加粘结剂层4之前、之中和/或之后。类似地，固化(一般与膨胀同时进行，但可以部分在膨胀步骤之后)可以在施加粘结剂层4的步骤之前、或者优选地之中、或者之后执行。非常常见的是，特别是当树脂组合物19是基于异氰酸酯的时候，膨胀气体的生成以及因此膨胀步骤本身，形成了部分固化反应，并且在这种情形中与固化步骤至少部分同时发生，尽管一些另外的固化反应可能在产生了起泡气体并且完成了膨胀之后继续进行。如果部分固化和膨胀的树脂组合物19能够支撑顶部金属覆面层1的重量，那么，在施加顶部金属覆面层之前，可以不必使树脂组合物19完全固化。
顶部金属覆面层1被连续地施加在粘结剂层4的顶部。传送顶部金属覆面层1的方式并不是特别重要的。很多种机械装置可以用来施加顶部金属覆面层1，包括就底部金属覆面层2所描述的那些机械装置中的任意一种。
如果顶部金属覆面层1具有一定的断面形状，那么，粘结剂层4可以填充该覆面层的下凹区，以使得其底部表面平整。
所得到的组件然后连续通过双带层压机11，使顶部金属覆面层1与粘结剂层4接触，将该组件规格化为预定厚度，并且必要的话，完成树脂组合物19和/或粘结剂层4的固化，从而形成泡沫层压件20。固化时，树脂组合物19形成聚合泡沫层21，聚合泡沫层21由纤维毡10在其至少部分厚度上得到增强。该规格(即层压机11的顶部带11a和底部带11b之间的距离)限定了板厚度。当组件通过层压机11时，顶部带11a在底部金属覆面层1上施加小的向下力，以使底部金属覆面层1与粘结剂层4接触并结合到粘结剂层4。膨胀的树脂组合物在这个步骤中可稍稍被压缩，但压力不应太大以压塌泡沫或者产生大的背压。如果粘结剂层4和可选用的粘结剂层6(见下述)要求热固化，那么，优选的是，这个热固化至少部分地发生在这个层压步骤之中，以将顶部金属覆面层4结合到增强的泡沫层21。热可以通过任一个表面或者两个表面(需要的话)进行施加，以促使树脂组合物19和/或粘结剂层4固化。
所得到的层压件20从双带层压机11的后端被连续地排出。然后，层压件20一般被切割成任意希望长度(诸如用刀15，或者优选地，带锯或者圆锯)，必要或者希望的话，进行后固化，然后包装用于仓储和/或运输。
顶部金属覆面层1和底部金属覆面层2每一个都是单层或者多层材料，包括至少一个厚度为0.2～1.0mm的金属层。金属层可以是在工作温度下为固体的任意金属，不过为了这个目的，优选的金属是钢、不锈钢、铝、镍、锌、钛、青铜、铜、黄铜、镁，以及这些金属任意一种的合金。基于低成本和期望的机械性能而言，钢是最优选的。金属层可以是平坦的，但也可以具有一定的断面形状(例如沿其长度方向形成槽或沟)。金属层可以例如通过电晕放电进行表面处理，以提高其结合到粘结剂层4的能力。金属层也可以在被引入到本发明工艺之前进行加热。形成断面形状、表面处理和/或加热的步骤可以整合到本发明工艺中。
金属层可以是单独的金属覆面层部件。作为替换方式，任意一个金属覆面层或者两个金属覆面层可以是层压件，包含一个以上其他材料层，诸如像纸、保护涂料、漆、装饰饰面，等等。涂漆的钢板尤其适合作为金属覆面层。顶部金属覆面层1和底部金属覆面层2可以彼此相同或不同。
纤维毡可以是：例如，对齐的连续纤维；连续粗纱；随机取向的短(长度15cm以下)或长纤维。优选的是，在发泡树脂组合物膨胀和固化时，纤维毡中的纤维至少部分地被向上运载，使得在树脂组合物形成的时候，纤维增强物延伸到泡沫芯层的整个厚度。
所以，虽然在一些实施例中纤维毡的纤维可以机械结合(诸如通过缠结、缝合和/或针刺)、热结合和/或粘结结合、纺织或编织，但是，在一种优选的毡中，纤维优选地不通过加热或粘结结合，并且至多是少量地缠结，于是，纤维能够容易地相对彼此移动，因此其中的至少一些纤维能够随着树脂组合物的膨胀而被向上运载。纤维优选地由在板制造工艺工程中遇到的温度下热稳定的材料制成，并且比聚合泡沫材料硬。玻璃是优选类型的纤维，但其他类型也是有用的，诸如其他的陶瓷材料(包括矿物棉、氮化硼、氮化硅，等等)、金属、碳、高熔点聚合纤维，以及诸如毛、棉、黄麻、***或丝等天然纤维。基于成本、可得到性和大体良好性能而言，玻璃纤维是优选的。优选的纤维毡重量可以重例如从20g/cm2到80g/cm2。纤维毡可以以两个以上叠合层的形式提供。这个(或多个)纤维毡的总厚度(在树脂组合物固化过程中的任何膨胀之前)可以是例如从3mm到10mm。
可固化发泡树脂组合物19是聚合物前体和起泡剂以及/或者起泡剂前体的混合物，这些物质在该工艺中反应生成蜂窝状聚合物泡沫。可固化发泡树脂组合物19优选地被配制成生成的泡沫的自由发泡密度是16kg/m3到320kg/m3，更优选地是24kg/m3到80kg/m3。“自由发泡”密度是在不限制树脂组合物样品在竖直方向上的膨胀并且没有纤维毡的情况下通过固化该树脂组合物样品、然后对这样生成的泡沫密度进行测量所确定的。这样生成的蜂窝状聚合物泡沫优选地是硬泡沫。
基于异氰酸酯的树脂组合物是高度优选的，因为这些组合物能被配制为初始粘度低，这有利于组合物渗透进纤维毡中的纤维之间的空隙中，而且因为基于异氰酸酯的树脂组合物能被配制为迅速膨胀和固化而形成具有有用性能的聚合物泡沫。基于异氰酸酯树脂的组合物可以被配制为生成具有氨基甲酸酯基、脲基和/或异氰脲酸酯基的聚合物。一种特别优选的基于异氰酸酯的树脂组合物是聚异氰脲酸酯或聚氨酯-聚异氰脲酸酯泡沫形成组合物，因为这些类型的泡沫展示出高隔热性和优异的强度重量比的优异组合。
合适的基于异氰酸酯的树脂组合物是公知的。例如，在WO2010/114703和WO2007/02588中描述的那些树脂组合物是合适的。一般来说，基于异氰酸酯的树脂组合物将包括至少一种多异氰酸酯化合物、至少一种起泡剂、至少一种多元醇，以及用于异氰酸酯基与它们自己反应(生成异氰脲酸酯基)和/或与组合物中的异氰酸酯反应性材料(诸如多元醇和可能存在的任何水)反应的至少一种催化剂。
柔性阻隔材料层防止可固化发泡树脂组合物接触用于形成收缩区域14的装备。因此，该柔性阻隔材料层或者是无孔的，或者如果有孔或开口，则这些孔或开口足够小，使这些孔或开口不会允许可固化发泡树脂组合物在该工艺过程中渗透过柔性阻隔材料。“柔性”，意思是组合物和该层的厚度使其能够可双面弯曲到1英寸(2.54cm)以下的弯曲半径，优选地为0.25英寸(6.25cm)以下的弯曲半径，而不会永久损坏或扭曲。柔性材料优选地在本发明工艺条件下是热稳定的，不会溶解在可固化发泡树脂组合物，或者由于可固化发泡树脂组合物而变差。
各种材料能够用作该柔性阻隔材料。其中有：纸；聚合物膜和/或包括热塑性聚合物膜的聚合物泡沫，以及诸如聚烯烃、聚酯、聚(偏二氯乙烯)、聚酰胺、聚碳酸酯、聚氨酯等泡沫；诸如铝箔等金属箔；以及纺织或无纺纤维。柔性阻隔材料可以是包含两层以上的多层结构，这些层中的至少一层形成了对树脂组合物通路的阻隔。例如，柔性阻隔材料可包括结合到无孔层的有孔层。这种柔性阻隔材料的例子包括一层蜂窝状聚合物、颗粒材料或纤维材料，或其他有孔材料，该层结合到无孔层，诸如纸片、聚合物膜层或其他层。优选类型的柔性阻隔材料是多层结构，包括一层玻璃或其他陶瓷纤维，在其一侧或两侧上结合有诸如纸或聚合物膜的无孔层。一种特别优选类型的柔性阻隔材料是一层矿物棉，其在一侧或两侧上结合到纸层。
该层柔性阻隔材料可具有例如20～100mm的厚度。
粘结剂层4可以例如是热熔粘结剂，或者优选地，是诸如环氧粘结剂或基于异氰酸酯的粘结剂等的可固化类型。合适的环氧粘结剂是公知的，并在例如WO2006/093949和WO2006/052726中进行了描述。这些环氧粘结剂包括环氧树脂、硬化剂和至少一种环氧固化催化剂。合适的聚氨酯和聚氨酯-聚异氰脲酸酯粘结剂也是公知的，并在例如WO2011/045139中进行了描述。聚氨酯和聚氨酯-聚异氰脲酸酯粘结剂包括至少一种多异氰酸酯化合物、至少一种多元醇、氨基醇或聚胺，以及优选地至少一种用于固化反应的催化剂。如果要形成聚异氰脲酸酯基，粘结剂优选地包括用于异氰酸酯基三聚的催化剂以及用于异氰酸酯基与羟基反应的催化剂。环氧或聚氨酯粘结剂可以被配制为单组分或双组分粘结剂。
粘结剂层4可以含有无机填料，无机填料可以被包括来降低成本，调整其物理性能，提供热障、提供额外的阻燃性，以及/或者用作泡沸剂。可膨胀石墨是用作泡沸剂的无机填料的一个例子。粘结剂层4优选地是非蜂窝状，或者，如果是蜂窝状，则其所具有的密度至少是150kg/m3，优选地至少400kg/m3，特别是至少700kg/m3。
参见图2，根据本发明制备的隔热板20包括底部金属覆面层2、聚合泡沫层21(通过树脂组合物19的膨胀和固化制造的，并用纤维毡10在其至少一部分厚度上增强)、柔性层5、粘结剂层4和顶部金属覆面层1。粘结剂层4将柔性层5结合到顶部金属覆面层1。柔性层5直接结合到聚合泡沫层21。在图2所示实施例中，可选用的粘结剂层6将聚合泡沫层21结合到底部金属覆面层2，但粘结剂层6可以省略，在这种情况中，聚合泡沫层21被直接结合到底部金属覆面层2。纤维毡10可以延伸通过聚合泡沫层21厚度的小到10％到多到100％，但优选地延伸通过聚合泡沫层21厚度的至少50％。为了更好图示的目的，在图2中，各层的厚度不是按比例绘制的。
隔热板20优选地具有25～250mm的厚度。增强的泡沫层可具有从5mm到240mm的厚度。
在一些实施例中，可以在底部金属覆面层2和增强泡沫层21之间插置可选用的粘结剂层。这种可选用的粘结剂层在图1、3、4中用附图标记6指明。可选用的粘结剂层6可以例如是热熔粘结剂，或优选地，是诸如环氧粘结剂或基于异氰酸酯的粘结剂等可固化类型，如针对粘结剂层4描述的那样。如果有粘结剂层6，该层可以与粘结剂层4相同或不同。
在图1所示的实施例中，可选用的粘结剂层6使用用附图标记C标示的设备直接施加到底部金属覆面层2，在树脂组合物19和纤维毡10被引入位置的上游。如果金属覆面层1具有一定的断面形状，则粘结剂层6可以填充覆面层的下凹区，以使得顶部表面平整。在替换实施例中，可以改变引入可选用粘结剂层6、纤维毡10和树脂组合物19的顺序。设备C大体上如前面针对设备A和B描述的那样。
在图3所示的替换实施例中，可选用粘结剂层6被施加到底部金属覆面层2，然后纤维毡10被直接施加到可选用粘结剂层6上面，之后是树脂组合物19和柔性阻隔材料5，这些步骤是在使这些材料通过由辊12和13限定的收缩区域14之前进行的。
在图4所示替换实施例中，纤维毡10直接铺设到底部金属覆面层2上面，之后是可选用的粘结剂层6，接着是树脂组合物19和柔性阻隔材料5，这些步骤是在使这些材料通过由辊12和13限定的收缩区域14之前进行的。
在图3和4所示的替换实施例中，除了部分地浸渍树脂组合物19外，纤维毡10可以部分地浸渍粘结剂层6。粘结剂6可以比纤维毡10薄，因此，至少一部分纤维毡10延伸到粘结剂层6的外面，并浸渍树脂组合物19，于是如前所述，所得到的泡沫层21在其至少一部分厚度上被纤维毡10增强。
本发明的泡沫层压件可以被用在各种结构、隔热和/或装饰应用场合中。它们可以被用作结构材料，用于建筑物的内、外墙、天花板和顶棚材料；作为装饰性和/或门面材料、管道***板、建筑物中的墙壁和天花板；作为用于建筑物和各种类型的冷储设施的隔热板。层压件可以被用作船只和其他运输交通工具的甲板铺板。
总的来说，这些泡沫层压件可以用在与传统板相同的应用场合，并且方式相同。

Claims (21)

1.一种用于制备具有金属覆面片的泡沫层压件的连续工艺，包括：
a)连续地将包括厚度为0.2mm到1.0mm的金属层的底部金属覆面片供应到移动表面上；
b)连续地将纤维毡和可固化发泡树脂组合物施加到移动的底部金属覆面片上；
c)在使发泡树脂组合物完全膨胀之前，连续地将一层基本上柔性的阻隔材料施加在纤维毡和泡沫形成树脂组合物的顶部；
d)在使发泡树脂组合物完全膨胀之前，使底部金属覆面层、纤维毡、树脂组合物和柔性阻隔材料连续地通过收缩区域，以将底部金属覆面层、纤维毡、树脂组合物和柔性阻隔材料压在一起，使得树脂组合物被挤进并浸渍纤维毡，并且使柔性阻隔材料与树脂组合物接触；
e)然后将一层粘结剂层连续地施加在柔性阻隔材料层的顶部；
f)然后将包括厚度为0.2mm到1.0mm的金属层的顶部金属覆面层连续地施加在粘结剂层顶部，以及
g)将所得到的组件通过双带层压机，以使顶部金属覆面层与粘结剂层接触，将该组件规格化为预定厚度，并且如果必要，进一步固化树脂组合物、粘结剂层，或者树脂组合物和粘结剂层二者，以形成泡沫层压件。
2.根据权利要求1的工艺，其中，在施加顶部金属覆面层之前，发泡树脂组合物至少部分地膨胀和部分地固化。
3.根据权利要求1或2的工艺，其中，发泡树脂组合物是基于异氰酸酯的。
4.根据前述任一项权利要求的工艺，其中，纤维毡具有20g/m2到80g/m2的重量。
5.根据前述任一项权利要求的工艺，其中，纤维毡是玻璃纤维毡。
6.根据前述任一项权利要求的工艺，其中，柔性阻隔材料是多层结构，包括一层玻璃或其他陶瓷纤维，在其一侧或两侧上结合有无孔层。
7.根据前述任一项权利要求的工艺，其中，该层柔性阻隔材料具有20mm到100mm的厚度。
8.根据前述任一项权利要求的工艺，其中，金属覆面层的金属层是钢。
9.根据前述任一项权利要求的工艺，还包括：在步骤b)前或者在步骤b)中，在底部金属层和发泡树脂组合物之间放置一层粘结剂。
10.根据权利要求9的工艺，其中，放置在底部金属层和发泡树脂组合物之间的该层粘结剂，是在纤维毡之前或者与纤维毡同时放置的。
11.根据前述任一项权利要求的工艺，其中，发泡树脂组合物膨胀到20mm到240mm的厚度。
12.根据前述任一项权利要求的工艺，其中，隔热板具有25mm到250mm的厚度。
13.一种隔热板，包括下面的层：底部金属覆面片(2)，包括厚度为0.2mm到1.0mm的金属层；聚合泡沫层(21)，在其至少一部分厚度上用纤维毡(10)进行增强，所述聚合泡沫层(21)被直接或间接地粘结到底部金属片(2)；一层柔性阻隔材料(5)，粘结到纤维增强的聚合泡沫层(21)；粘结剂层(4)，粘结到柔性阻隔材料(5)；以及顶部金属覆面片(1)，具有0.2mm到1.0mm的厚度，用粘结剂层(4)粘结到该层柔性阻隔材料(5)。
14.根据权利要求13的隔热板，其中，纤维毡(10)具有20g/m2到80g/m2的重量。
15.根据权利要求13或14的隔热板，其中，纤维毡(10)是玻璃纤维毡。
16.根据权利要求13到15任一项的隔热板，其中，柔性阻隔材料是多层结构，包括一层玻璃或其他陶瓷纤维，在其一侧或两侧上结合有无孔层。
17.根据权利要求13到16任一项的隔热板，其中，该层柔性阻隔材料(5)具有20mm到100mm的厚度。
18.根据权利要求13到17任一项的隔热板，其中，金属覆面片(1和2)的金属层是钢。
19.根据权利要求13到18任一项的隔热板，还包括：在底部金属层(1)和聚合泡沫层(21)之间的一层粘结剂(6)。
20.根据权利要求13到19任一项的隔热板，其中，聚合泡沫层具有20mm到240mm的厚度。
21.根据权利要求13到20任一项的隔热板，其中，隔热板具有25mm到250mm的厚度。
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CN104582963B (zh) 2016-11-09
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JP2015530941A (ja) 2015-10-29
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