Water uptake expansion bag and preparation method

Abstract

The invention discloses an absorbing plumping bag and its production method. The points of the technological scheme are: the absorbing plumping bag is composed of the outer bag (gunny-bag or plastic compound bag), the inner bag (chemical fabric bag or non-woven fabrics bag) and the absorbing plumping agent. There are 4 to 16 connective bands on the upper and the lower plane of the outer bag. The absorbing plumping bag of the invention is widely applied to the flood fighting, water conservancy and building operation. In the construction, we can connect the outer bags with each other tightly to improve the overall strength and stream impact resistant property of the absorbing plumping bag. When the absorbing plumping agent in the bag meets with the water, its weight and volume will increase by more than 10 times quickly. Being struck by water, it will not flow and is benefit to the safe and rapid construction. When the flood fighting or construction is finished, the absorbing plumping bag can be reused after insolation.

Description

Technical field: [0001] The invention relates to a novel material for flood prevention and plugging, in particular to a water-absorbing swelling bag. Background technique: [0002] In flood fighting and drainage, emergency rescue, water conservancy and building construction, leak plugging is a common work. In order to improve the ability of leak plugging, many patent documents have made detailed explanations and have certain effects. Most of the currently known water-absorbent expansion bags used for flood prevention and plugging are purely made of superabsorbent resin, and some of them are added with fine sand or wood chips. These added materials play a certain auxiliary role; but in actual use, high Although the water absorption rate of the water-absorbent resin is very high, due to the low density, light and soft texture and low elasticity of the super-absorbent resin after absorbing water, even if a small amount of beans, plant fibers, soil, and fine sand are added to th...

AI Technical Summary

Problems solved by technology

Most of the currently known water-absorbent expansion bags used for flood prevention and plugging are purely made of superabsorbent resin, and some of them are added with fine sand or wood chips. These added materials play a certain auxiliary role; but in actual use, high Although the water absorption rate of the water-absorbent resin is very high, due to the low density, light and soft texture and low elasticity of the super-absorbent resin after absorbing water, even if a small amount of beans, plant fibers, soil, and fine sand are added to the leak-stopping bag Stone or sawdust, after absorbing water and swelling, the superabsorbent resin and fine sand or wood chips cannot be evenly distributed, nor can they be bonded to each other, and the fine sand will settle in the lower layer of the bag. Under the impact of water flow, the plugging bag remains will drift

Some have grommets on the leak-stopping bags, and some bags have connecting straps at both ends for the mutual connection of the leak-stopping bags. It will also damage the plugging bag and the buttonhole on the bag, which is not conducive to normal construction, and the effect of the water-absorbing expansion bag cannot be brought into full play.

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