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Hot-melting glue-spraying type processing technique of geosynthetic clay liner

A bentonite waterproof blanket and processing technology, which is applied to layered products, lamination devices, lamination, etc., can solve the problems of low peel strength affecting the anti-seepage effect of the waterproof blanket, and achieve the goal of not easy to scatter and lose, high peel strength, The effect of smooth appearance

Inactive Publication Date: 2015-03-25
HONGXIANG NEW GEO MATERIAL
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The invention provides a processing technology of a hot-melt spray glue type bentonite waterproof blanket to solve the problem in the prior art that the low peel strength affects the anti-seepage effect of the waterproof blanket

Method used

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  • Hot-melting glue-spraying type processing technique of geosynthetic clay liner

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Embodiment Construction

[0021] A processing technology of a hot-melt glue-sprayed bentonite waterproof blanket, which is characterized in that the raw materials are woven geotextiles, bentonite and non-woven geotextiles, and the woven geotextiles are plastic flat yarn woven geotextiles or filament woven geotextiles; Non-woven geotextiles are polyester needle-punched non-woven geotextiles or polypropylene needle-punched non-woven geotextiles. The specific processing steps are as follows:

[0022] (1) Unwinding, the woven geotextile and non-woven geotextile are laid flat by the unwinding device;

[0023] (2) Spread the bentonite, evenly spread the bentonite between the woven geotextile and the non-woven geotextile, and compact it;

[0024] (3) Composite acupuncture, through mechanical acupuncture technology, the upper layer of woven geotextile, bentonite, and the lower layer of non-woven geotextile are tightly compounded;

[0025] (4) Hot-melt, through the hot-melt shaping of the hot roller, the fiber...

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Abstract

The invention relates to a hot-melting glue-spraying type processing technique of a geosynthetic clay liner. The processing technique comprises the steps of unwinding, spreading and dispersing bentonite by taking woven geotechnical cloth, bentonite and non-woven geotechnical cloth as raw materials, carrying out composite needling and hot melting, spraying glue, overlocking and winding. According to the geosynthetic clay liner prepared by the composite needling after hot melting, glue spraying and overlocking, inter-tangled fiber nets have flat appearance after being rolled and shaped by a heat roller, the entanglement strength of the needled fiber net after the glue spraying process is enhanced, the peeling strength is improved, and is better than that of a product by the traditional process; and finally, the product is subjected to overlocking to stitch the periphery of the product, the bentonite in the middle layer cannot run off easily in production, transportation and laying processes, the seepage-proofing effect of the product can be well ensured, and the geosynthetic clay liner is suitable for the anti-seepage projects such as artificial lake waterscapes, refuse landfills, underground garages, green roofs, water pools, oil depots, chemicals storage yards.

Description

technical field [0001] The invention relates to the technical field of geotextiles, in particular to a processing technology of a hot-melt spray glue type bentonite waterproof blanket. [0002] Background technique [0003] Waterproof blanket is specially used in artificial lake waterscape, landfill, underground garage, roof garden, pool, oil depot and chemical storage yard and other environments that require anti-leakage. The performance has high requirements; the existing waterproof blanket is easy to expand due to the action of water on it after a period of use, causing the overall waterproof blanket to become loose, resulting in a decline in waterproof performance; in addition, the existing waterproof blanket has relatively poor mechanical properties. Poor, very prone to tearing. [0004] In recent years, the bentonite waterproof blanket produced with bentonite as the main raw material has become an important waterproof and anti-seepage material. Because montmorillon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/15B32B37/12
CPCB32B37/02B32B37/06B32B37/12B32B2038/008B32B2307/73
Inventor 崔占明孟灵晋
Owner HONGXIANG NEW GEO MATERIAL
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