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A water-impermeable and / or oil-impermeable sealing mat consisting essentially of a substrate layer, a swellable clay layer and a cover layer
A water-impermeable and / or oil-impermeable sealing mat consisting essentially of a substrate layer, a swellable clay layer and a cover layer
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机译:不透水和/或不透油的密封垫,主要由基底层,可溶胀粘土层和覆盖层组成
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摘要
A waterproof and/or oilproof needled sealing mat composed of nonwovens and swellable clay is made available, in which a clay layer is located between the support and covering layer. The clay layer is, together with the support and covering layer, a special feature combination. The support layer can also consist of a nonwoven in combination with a woven fabric, knitted fabric and/or a plastic film. The sealing mat, even in the swollen state of the clay, is a stable fibre composite which, to a high extent, can divert shearing forces which act on the covering layer into the support layer, without the swollen bentonite becoming the sliding surface.
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