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Waterproof rubber seal acid

author: Jianfeng Engineering from: ԭ date: 2017/6/22 18:00:00 hit: 10103
Tips: Water swellable rubber is made of rubber with water soluble polymer materials in water by mixing the...

Water swellable rubber is made of rubber with water soluble polymer materials in water by mixing the processed product. That is a general characteristic of rubber products, and water self expansion to water seal function. Sealing and waterproof effect against the material has the elastic joint sealing material, when the joints on both sides of the distance to increase the elastic waterproof material elastic recovery rate below, because the material has the characteristics of water swellable materials, in the range from expansive water stop, the expansion body has more rubber properties, water resistance, acid and alkali resistance.

Water expansion rubber strip

Water swellable rubber is a kind of special material with water expansion function to hydrophilic polyurethane material and rubber mixing process. When soaked in water, because there are a large number of hydrophilic group in polyurethane (CH2 CH2-O), the water and the number of the many groups can be combined with hydrogen the polymer, intermolecular forces weakened, resulting in rubber volume increases, due to hydrogen bonding interactions, so that the water molecules are closely held, even in the mechanical compression to attract, the water can not be extruded out, but the water swelling effect is reversible.


  

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