CN102365166A - 隔膜,特别是一种气体存储隔膜 - Google Patents

隔膜,特别是一种气体存储隔膜 Download PDF

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Publication number
CN102365166A
CN102365166A CN2010800139122A CN201080013912A CN102365166A CN 102365166 A CN102365166 A CN 102365166A CN 2010800139122 A CN2010800139122 A CN 2010800139122A CN 201080013912 A CN201080013912 A CN 201080013912A CN 102365166 A CN102365166 A CN 102365166A
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China
Prior art keywords
barrier film
layer
rubber
described barrier
diaphragm
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CN2010800139122A
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CN102365166B (zh
Inventor
延斯·施托尔
卡尔-海因茨·布洛麦尔
亚历山大·帕帕季米特里乌
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ContiTech Elastomer Beschichtungen GmbH
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ContiTech Elastomer Beschichtungen GmbH
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Classifications

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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing adhesives
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    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
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    • B29C66/43—Joining a relatively small portion of the surface of said articles
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    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • 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
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    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

本发明涉及一种隔膜，特别是一种气体存储隔膜，该隔膜包括通过至少一个接缝结构而彼此连接的至少两个单一的隔膜片，其中每个单一的隔膜片(4，4′)包括至少一个弹性体层以及至少一个基于PTFE的外层。本发明进一步涉及用于生产所述类型的隔膜的一种方法。

Description

隔膜,特别是一种气体存储隔膜
技术领域
本发明涉及一种隔膜，特别是一种气体存储隔膜。
背景技术
在将两种相同的或不同的流体以柔性方式分离或者隔离彼此进行密封的地方使用了隔膜。具体地，被用于关于气态流体而进行分离或密封的隔膜必须具有对于对应的流体被恰当调整过的不同特性。例如，如果要将压缩的气体以一种柔性方式与液体分离，重要的是使压力保留在气体中。因此这种类型的隔膜必须具有最大的气体不通透性。
为了抵消气体通过扩散而从一个气体腔室中的逃逸，已知可以将该隔膜设计为具有最大的对气体(特别是对氮气)的不通透性。通过举例，DE 42 43 652 A1、DE 41 17 411 C2、和D 36 38 828 A1披露了由弹性体层制成的隔膜具有一个气体阻挡层，也称为阻挡层。在此可以使用的气体阻挡层的例子是由聚酰胺、聚乙烯醇、或乙烯-乙烯醇共聚物制成的层。具有此类气体阻挡层的隔膜具有较短的寿命，即，在长时间使用之后经常表现出永久性的隔膜膨胀，因为这种气体阻挡层总体上不具有这些周围弹性体亚层的弹性行为、并且因此屈服于永久性膨胀。
DE 44 46 304 A1披露了用于隔膜泵或隔膜阀的隔膜的寿命增加，其中这些包括了PTFE。在此PTEF层是通过热压法直接连接到一个织物层上。然而，在DE 44 46 304 A1中其寿命并不于气体不通透性相关，而是与隔膜泵或隔膜阀所必须的载荷周期以及挠曲周期相关。
用于密封大体积容器的隔膜(例如生物气系统中需要的那些)通过举例从DE 20 2007 007 060 U1和EP 1 746 336 A1中获知。DE20 2007 007 060 U1提供了附接一种可密封的外通道孔来抵消由过高及过低压力所代表的风险，以在这种类型的气体存储隔膜中维持寿命，即降低或避免损伤。EP 1 746 336 A1描述了附接一种另外的网以便例如在户外领域中避免气体存储箔片的撕裂。两者实质上均涉及了用于维持机械寿命而非维持化学寿命或化学稳定性的一种措施。
发明内容
因此本发明的一个目的是提供一种柔性隔膜，特别是一种柔性的气体存储隔膜，该隔膜的特征是良好的化学稳定性以及长的寿命与改进的成本效率。
本发明通过一种隔膜实现了所述目的，该隔膜的特征在于，它是由通过至少一个接缝结构而彼此连接的至少两个单一的隔膜片构成的，其中每个单一的隔膜片包括至少一个弹性体层以及至少一个基于PTFE的外层。
为了本发明的目的，“基于PTFE的”意指聚四氟乙烯(PTFE)、改性的聚四氟乙烯(TFM)、氟乙烯聚合物(FEP)、全氟化的烷基乙烯基醚-四乙烯共聚物(PFA)、或乙烯-四氯乙烯共聚物(ETFE)。优选的是在此涉及PTFE或TFM。
出人意料地，已经发现这种类型的隔膜、特别是这种类型的气体存储隔膜的特征是良好的气体不通透性以及尤其是延长的寿命、因此以及改进的成本效率。
本发明的隔膜优选地用于密封焦炉煤气(也被称为焦化厂气体)、并且优选地用于威金斯类型的气体存储系统中。
另一个优点是显著地降低了环境污染，并且因此不需要处置受污染的密封油，并且因此不需要泵送装置用于该密封油的连续循环。此外这种类型的隔膜代表了一种具有良好弹性的弹性系统，该系统可以对于气体体积以及气体压力的变化柔性地作出反应而无机械和化学损害。
焦炉煤气实质上包括氢气、甲烷、氮气、一氧化碳、二氧化碳、硫化氢、氨、以及低级和高级烃类。它是由煤的热解所产生的。作为起始材料，煤是一种其组分发生变化的天然产物，并且因此焦炉煤气的组成总是不同的，但是它始终是侵蚀性的，达到了吸入或皮肤接触对于有机体、人类或其他动物通常会危机生命的程度。
这种侵蚀性的特征从以下事实中也是明显的：一些焦炉煤气可以扩散穿过一种仅由弹性体层并且有时候由一个铺设的粗布层、纺织层或编织层所构成的隔膜、并且还可以破坏所述层。
如果使用仅仅是基于PTFE的箔片的一种密封隔膜，结果首先是极其高的成本并且缺乏拉伸强度、以及低的总强度；并且其次是在气体存储系统中没有柱塞的稳定作用，例如就扭矩而言。
因此本发明的隔膜是由通过至少一个接缝结构而彼此连接的至少两个单一的隔膜片构成，其中每个单一的隔膜片包括至少一个弹性体层以及至少一个基于PTFE的外层。
在该单一的隔膜片内的层的数目优选地是从二至六，并且在一个特别优选的实施方案中该单一的隔膜片具有四个层。
已经证明有利的是该隔膜片包括至少一个弹性体层和至少一个基于PTFE的外层、以及至少一个铺设的粗布层或纺织层或编织层，其中这种铺设的粗布层或纺织层或编织层在至少一个侧面上连接到了一个弹性体层上。
该弹性体层优选是一种基于氯丁二烯橡胶和/或基于乙烯-丙烯橡胶和/或基于乙烯-丙烯-二烯橡胶和/或基于丁腈橡胶和/或基于卤代腈橡胶和/或基于氟橡胶和/或硅氧烷橡胶和/或氯化聚乙烯和/或基于氯磺化的聚乙烯的橡胶混合物。上述一种或多种橡胶的定量比例有利地是从50至100phr。
优选的是在此包括从50至100phr的氯丁二烯橡胶。
在此的phr数据(按重量计每一百份橡胶中的份数)是橡胶工业中用于混合配方的常规定量数据。这里这些单一物质按重量计加入的份数始终是基于按重量计100份的、该橡胶混合物中存在的所有橡胶的总组成。该弹性体层的厚度是从0.2至1.3mm、优选地从0.4至1.0mm。如果使用多于一个的弹性体层，则它们的厚度可以是相同的或不同的。同样地，如果存在多于一个弹性体层，则这些单一弹性体层的定性和/或定量组成可以是相同或不同的。
该铺设的粗布层或纺织层或编织层优选地是由聚酰胺纱和/或聚酯纱和/或芳族聚酰胺纱和/或棉纱和/或玻璃纤维和/或金属纱构成，并且在此特别优选的是聚酰胺纱。该铺设的粗布层或纺织层或编织层的厚度优选地是从0.1至0.5mm、特别优选从0.2至0.4mm，而该基于PTFE的外层的厚度优选是从0.05至0.5mm、特别优选从0.1至0.3mm。
如果使用多于一个的铺设的粗布层或纺织层或编织层，则它们的厚度可以是相同或不同的。同样地，如果存在多个一个的铺设的粗布层或纺织层或编织层，则它们可以由对应地相同的或不同的上述材料构成。
此外有利的是该基于PTFE的外层已被双面蚀刻。由于良好的化学偶合，该外层的双面蚀刻可以产生一种稳定的粗布结构以及非常小的层厚度。后者可以提供层(包括外层)的可逆膨胀，并且在此种膨胀的情况下抑制了外层与弹性体层或与一个铺设的粗布层或纺织层或编织层的分离。这种双面蚀刻对于该外层所提供的优异屏蔽没有影响，特别是关于侵蚀性的焦炉煤气而言。在此可以将本领域的普通技术人员所熟知的任何蚀刻方法用于该外层的双面蚀刻。
另一个非常重要的因素是特别用于气体存储系统的一种隔膜的接缝结构。本领域的普通技术人员知道，通常被设计为重叠接缝并且被焊接和/或在低温下以粘合剂结合的接缝是一个隔膜的重要的薄弱位置之一。这种隔膜有利地是特征为一种特定的接缝结构。该接缝结构是由至少两个被置于相互对接中的单一隔膜片构成，其中这些相同类型的单一隔膜片的层对应地被置于相互对接中，并且其中在该隔膜的、在此这些单一隔膜片的弹性体层对应地被置于相互对接中的这个外侧上，这两个隔膜片通过一个叠放薄片并且通过一种第一橡胶基质而彼此连接，并且在另一个外侧上，在此这些单一隔膜片的外层对应地被置于相互对接中，这些是通过一个基于PTFE的叠放层并且通过一种第二橡胶基质而彼此连接。
这些单一隔膜片的总的层厚度应该是相同的，因为它们被置于对接中。
不证自明的是该叠放薄片的对应宽度以及该叠放层的宽度必须小于这些单一隔膜片的宽度，取最窄的隔膜片作为起点。
在此证明有利的是该叠放薄片的宽度和/或叠放层的宽度分别是从2至20cm、优选地从5至15cm。
在一个优选实施方案中，该叠放薄片是一种固化的或未固化的薄片。然而，它有利的是一个未固化的薄片。
此外有利的是该叠放薄片的构成和结构对应于至少一个隔膜片的构成和/或结构。该叠放薄片的厚度可以与这些单一隔膜片减去外层之后的总厚度相同或不同的。
在一个具体的实施方案中，该叠放层是由聚四氟乙烯(PTFE)或改性的聚四氟乙烯(TFM)构成的。该叠放层的材料和/或厚度可以对应地是与该外层的材料和/或厚度相同或不同的。有利的是至少该叠放层的材料是与该外层的材料是相同的。
再者，有利的是该叠放层已被双面蚀刻。
由于良好的化学偶合，该叠放层的双面蚀刻可以产生一种稳定的粗布结构以及非常小的层厚度。后者可以提供叠放层的可逆膨胀，并且在此种膨胀的情况下抑制了该叠放层与第二橡胶基质和/或外层的分离。这种双面蚀刻对于叠放层所提供的优异屏蔽没有影响，特别是关于侵蚀性的焦炉煤气而言。在此可以将本领域的普通技术人员所熟知的任何蚀刻方法用于该叠放层的双面蚀刻。
该第一橡胶基质和第二橡胶基质的橡胶基质优选地包括氯丁二烯橡胶和/或乙烯-丙烯橡胶和/或乙烯-丙烯-二烯橡胶和/或丁腈橡胶和/或卤代腈橡胶和/或氟橡胶和/或硅氧烷橡胶和/或氯化的聚乙烯和/或氯磺化的聚乙烯。在一个特别优选的实施方案中，该第二橡胶基质的橡胶基质包括氟橡胶(FKM)。在此这两种橡胶基质的对应构成可以是定性地和/或定量地相同或不同的。
此外有利的是该叠放薄片在面向这些单一隔膜片的一侧上不含基于PTFE的材料。
这种新颖隔膜的形状优选地是中空的圆柱形或环形的、或是锥形的，具有的总周长是从5至300m、优选地从10至200m。然而，上述形状的一种组合也是有可能的。
该隔膜的生产包括至少以下这些步骤：
-生产至少两个单一的隔膜片，其中该单一隔膜片的基于PTFE的外层是在该单一隔膜片的固化过程中以一种箔片的形式施加的；
-将该单一的隔膜片固化；
-将该单一的固化的隔膜片置于相互对接中，其中这些相同类型的单一隔膜片的层对应地被置于相互对接中；
-将这些单一的固化的隔膜片通过一个接缝结构进行连接，其方式为在该隔膜的、在此这些单一隔膜片的弹性体层对应地被置于相互对接中的这个外侧上，施加一个薄片以及一种第一橡胶基质，并且在另一个外侧上，在此这些单一隔膜片的基于PTFE的外层对应地被置于相互对接中，施加一个基于PTFE的层以及一种第二橡胶基质；
-将该粗布结构通过热压进行固化。
在此有利的是该单一隔膜片的固化和/或该接缝结构的固化在从140℃190℃的度下发生。
以上描述的方法实现了一种接缝结构，该接缝结构允许了在单一隔膜片之间的固化连接，其方式为在这些位点上几乎没有强度损失并且实质上遍及该隔膜的面积实现了任何潜在的膨胀。
当使用本发明的隔膜(特别是处于气体存储隔膜形式)来关于焦炉煤气进行密封时，面向气体或气体混合物的侧面是该隔膜的、包括了该基于PTFE的材料的那个侧面。
附图说明
现在参照附图使用一个本发明的实例来说明本发明，在附图中
图1示出了穿过一个单一隔膜片的截面，并且
图2示出了穿过一个接缝结构的截面。
附图标记说明
1     外层
2，2′弹性体层
3     铺设的粗布层或纺织层或编织层
4，4′隔膜片
5     叠放薄片(条)
6     第一橡胶基质
7     叠放层
8     第二橡胶基质

Claims (27)

1.一种隔膜，其特征在于，它是由通过至少一个接缝结构而彼此连接的至少两个单一的隔膜片构成，其中每个单一的隔膜片(4，4′)包括至少一个弹性体层(2，2′)以及至少一个基于PTFE的外层(1)。
2.如权利要求1所述的隔膜，其特征在于这些单一的隔膜片(4，4′)内的层的数目是从二至六。
3.如权利要求1或2所述的隔膜，其特征在于这些单一的隔膜片(4，4′)内的层的数目是四。
4.如权利要求1至3中任一项所述的隔膜，其特征在于每个单一的隔膜片(4，4′)还包括至少一个铺设的粗布层或纺织层或编织层(3)，其中这个铺设的粗布层或纺织层或编织层(3)已连接到一个弹性体层(2，2′)的至少一侧上。
5.如权利要求1至4中任一项所述的隔膜，其特征在于该弹性体层(2，2′)是基于氯丁二烯橡胶和/或基于乙烯-丙烯橡胶和/或基于乙烯-丙烯-二烯橡胶和/或基于丁腈橡胶和/或基于卤代腈橡胶和/或基于氟橡胶和/或基于硅氧烷橡胶和/或基于氯化聚乙烯和/或基于氯磺化聚乙烯的一种橡胶混合物。
6.如权利要求5所述的隔膜，其特征在于该弹性体层(2，2′)包括从50至100phr的氯丁二烯橡胶和/或乙烯-丙烯橡胶和/或乙烯-丙烯-二烯橡胶和/或丁腈橡胶和/或卤代腈橡胶和/或氟橡胶和/或硅氧烷橡胶和/或氯化聚乙烯和/或氯磺化聚乙烯。
7.如权利要求6所述的隔膜，其特征在于该弹性体层(2，2′)包括从50至100phr的氯丁二烯橡胶。
8.如权利要求1至7中任一项所述的隔膜，其特征在于该弹性体层(2，2′)的厚度是从0.2至1.3mm。
9.如权利要求4至8中任一项所述的隔膜，其特征在于该铺设的粗布层或纺织层或编织层(3)是由聚酰胺纱和/或聚酯纱和/或芳族聚酰胺纱和/或棉纱和/或玻璃纤维和/或金属纱构成的。
10.如权利要求9所述的隔膜，其特征在于该铺设的粗布层或纺织层或编织层(3)是由聚酰胺纱构成的。
11.如权利要求9或10所述的隔膜，其特征在于该铺设的粗布层或纺织层或编织层(3)的厚度是从0.1至0.5mm。
12.如权利要求1至11中任一项所述的隔膜，其特征在于该外层(1)的厚度是从0.05至0.5mm。
13.如权利要求12所述的隔膜，其特征在于该外层(1)的厚度是从0.1至0.3mm。
14.如权利要求1至13中任一项所述的隔膜，其特征在于该外层(1)已被双面蚀刻。
15.如权利要求1至14中任一项所述的隔膜，其特征在于该接缝结构是由至少两个被置于相互对接中的单一隔膜片(4，4′)构成的，其中这些相同类型的单一隔膜片(4，4′)的层对应地被置于相互对接中，并且其中在该隔膜的、在此这些单一隔膜片(4，4′)的弹性体层(2，2)被置于相互对接中的这个外侧上，这两个隔膜片(4，4′)通过一个叠放薄片(5)并且通过一种第一橡胶基质(6)而彼此连接，并且在另一外侧上，在此这些单一隔膜片(4，4′)的外层(1)对应地被置于相互对接中，这些是通过一个基于PTFE的叠放层(7)并且通过一种第二橡胶基质(8)而彼此连接。
16.如权利要求15所述的隔膜，其特征在于该叠放薄片(5)和/或叠放层(7)的宽度分别是从2至20cm。
17.如权利要求15或16所述的隔膜，其特征在于该叠放层(7)已被双面蚀刻。
18.如权利要求15至17中任一项所述的隔膜，其特征在于该第二橡胶基质(8)包括氟橡胶。
19.如权利要求15至18中任一项所述的隔膜，其特征在于该叠放薄片(5)在面向这些单一隔膜片(4，4′)的一侧面上是不含基于PTFE的材料的。
20.如权利要求1至19中任一项所述的隔膜，其特征在于其形状是空心圆柱形的或环形的或圆锥形的。
21.如权利要求1至20中任一项所述的隔膜，其特征在于其总周长是从5至300m。
22.如权利要求21所述的隔膜，其特征在于其总周长是从10至200m。
23.一种用于生产如权利要求1至22中任一项所述的隔膜的方法，其特征在于至少以下步骤：
-生产至少两个单一的隔膜片(4，4′)，其中该单一的隔膜片(4，4′)的基于PTFE的外层(1)是在该单一隔膜片(4，4′)的固化过程中以箔片的形式施加的；
-将该单一的隔膜片(4，4′)固化；
-将这些单一的固化的隔膜片(4，4′)置于相互对接中，其中这些相同类型的单一隔膜片(4，4′)的层对应地被置于相互对接中；
-将这些单一的固化的隔膜片(4，4′)通过一个接缝结构进行连接，其方式为在该隔膜的、在此这些单一隔膜片(4，4′)的弹性体层(2，2)对应地被置于相互对接中的这个外侧上，施加一个薄片(5)以及一种第一橡胶基质(6)，并且在另一外侧上，在此这些单一隔膜片(4，4′)的基于PTFE的外层(1)对应地被置于相互对接中，施加一个基于PTFE的层(7)以及一种第二橡胶基质(8)；
-将该接缝结构通过热压进行固化。
24.如权利要求23所述的用于生产隔膜的方法，其特征在于该单一的隔膜片(4，4′)的固化和/或该接缝结构的固化在从140℃至190℃的温度下发生。
25.如权利要求1至22中任一项所述的隔膜作为气体存储隔膜的用途。
26.如权利要求25所述的隔膜作为气体存储隔膜用于对含焦炉煤气的气体存储系统进行密封的用途。
27.如权利要求25或26所述的隔膜作为气体存储膜在威金斯型气体存储系统中的用途。
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