CN104441922A - Hot-melting glue-spraying type processing technique of geosynthetic clay liner - Google Patents
Hot-melting glue-spraying type processing technique of geosynthetic clay liner Download PDFInfo
- Publication number
- CN104441922A CN104441922A CN201410800669.9A CN201410800669A CN104441922A CN 104441922 A CN104441922 A CN 104441922A CN 201410800669 A CN201410800669 A CN 201410800669A CN 104441922 A CN104441922 A CN 104441922A
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- CN
- China
- Prior art keywords
- woven
- bentonite
- geofabric
- product
- hot melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/008—Sewing, stitching
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
Landscapes
- Revetment (AREA)
- Nonwoven Fabrics (AREA)
- Processing Of Solid Wastes (AREA)
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
The present invention relates to geotechnical process field, be specifically related to a kind of processing technology of hot melt glue spraying type GCL.
Background technology
Waterproof blanket uses under a kind of artificial lake's of being specifically designed to water scenery, refuse landfill, underground garage, roof garden, pond, oil depot and chemicals stockyard etc. need the environment of antiseep, and its expansion character to product, closely knit performance have higher requirement; Existing waterproof blanket causes waterproof blanket entirety to fluff because the effect of water to it very easily expands in use for some time, causes the decline of water resistance; Another existing waterproof blanket mechanical property is poor, very easily tears.
In recent years, be that the GCL of main material production has become a kind of important waterproof, seepage control material with bentonite.Because the essential mineral montmorillonite in bentonite has the physicochemical characteristics such as good dilatancy, water imbibition, caking property, ion exchangeable, the water of adsorbable own wt tens times during its chance water, after water suction, volume can increase decades of times, to be limited in the confined space by the pressure of top covering in work progress thus to be formed dense gel body, play the effect intercepting water permeation, its infiltration coefficient can be low to moderate 10-9cm/s usually.
At present, GCL mainly utilizes natural minerals bentonite for primary raw material, process by adopting needle point method to be fixed in spin between cloth and non-woven fabrics, but GCL peel strength prepared by existing processing technology is lower, the sodium bentonite in intermediate layer easily scatters loss, thus the coefficient of expansion of waterproof blanket and viscosity are reduced greatly, can not meet antiseepage requirement.
Summary of the invention
The invention provides a kind of processing technology of hot melt glue spraying type GCL, to solve the low problem affecting waterproof blanket anti-seepage effect of peel strength that prior art exists.
The technical solution adopted for the present invention to solve the technical problems is:
A processing technology for hot melt glue spraying type GCL, it is characterized in that raw material is Woven geofabric, bentonite and non-woven geotextile, concrete processing technology step is as follows:
(1) unreel, by unwinding device, Woven geofabric and non-woven geotextile are set level;
(2) bentonite is spread at stand, is evenly spread out by bentonite and is dispersed between Woven geofabric and non-woven geotextile, and carry out compacting;
(3) composite acupuncture, by mechanical acupuncture technology by upper strata Woven geofabric, bentonite, the tight composite molding of lower floor's non-woven geotextile;
(4) hot melt, is shaped by the hot melt of hot-rolling, makes the fiber hot melt adhesive of the Woven geofabric of upper and lower layer or the mutual cross winding of non-woven geotextile cloth cover, strengthens entanglement dynamics, improves peel strength, and makes flat appearance attractive in appearance;
(5) glue spraying, by spray-bonding craft make upper and lower layer Woven geofabric or non-woven geotextile mutually intersect tangle fiber bond further, improve the peel strength between upper and lower layer;
(6) lockstitch a border, by lock seaming quiltmg piocess, the upper and lower layer of product is linked into an integrated entity, prevents the bentonite in middle level not easily to run off;
(7) batch, by coiling machine by the curling rolling of final waterproof blanket product.
Above-mentioned Woven geofabric is plastic flat wire braided geotextiles or long filament woven geotextile; Non-woven geotextile is terylene needling non-woven geotextiles or polypropylene fibre needling non-woven geotextiles.
The present invention makes GCL after hot melt, spray-bonding craft through composite acupuncture technique, intermeshing fleece hot melt, glue spraying bonding sizing, flat appearance, more than the twice of peel strength higher than traditional handicraft product, because peel strength is high, the sodium bentonite in intermediate layer not easily scatters loss, better ensures the anti-seepage effect of product, is applicable in the antileakaging engineerings such as artificial lake's water scenery, refuse landfill, underground garage, roof garden, pond, oil depot and chemicals stockyard.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
1 bentonite, 2 Woven geofabric, 3 non-woven geotextiles in figure.
Detailed description of the invention
A processing technology for hot melt glue spraying type GCL, is characterized in that raw material is Woven geofabric, bentonite and non-woven geotextile, and Woven geofabric is plastic flat wire braided geotextiles or long filament woven geotextile; Non-woven geotextile is terylene needling non-woven geotextiles or polypropylene fibre needling non-woven geotextiles, and concrete processing technology step is as follows:
(1) unreel, by unwinding device, Woven geofabric and non-woven geotextile are set level;
(2) bentonite is spread at stand, is evenly spread out by bentonite and is dispersed between Woven geofabric and non-woven geotextile, and carry out compacting;
(3) composite acupuncture, by mechanical acupuncture technology by upper strata Woven geofabric, bentonite, the tight composite molding of lower floor's non-woven geotextile;
(4) hot melt, is shaped by the hot melt of hot-rolling, makes the fiber hot melt adhesive of the Woven geofabric of upper and lower layer or the mutual cross winding of non-woven geotextile cloth cover, strengthens entanglement dynamics, improves peel strength, and makes flat appearance attractive in appearance;
(5) glue spraying, by spray-bonding craft make upper and lower layer Woven geofabric or non-woven geotextile mutually intersect tangle fiber bond further, improve the peel strength between upper and lower layer;
(6) lockstitch a border, by lock seaming quiltmg piocess, the upper and lower layer of product is linked into an integrated entity, prevents the bentonite in middle level not easily to run off;
(7) batch, by coiling machine by the curling rolling of final waterproof blanket product.
Claims (2)
1. a processing technology for hot melt glue spraying type GCL, it is characterized in that raw material is Woven geofabric, bentonite and non-woven geotextile, concrete processing technology step is as follows:
(1) unreel, by unwinding device, Woven geofabric and non-woven geotextile are set level;
(2) bentonite is spread at stand, is evenly spread out by bentonite and is dispersed between Woven geofabric and non-woven geotextile, and carry out compacting;
(3) composite acupuncture, by mechanical acupuncture technology by upper strata Woven geofabric, bentonite, the tight composite molding of lower floor's non-woven geotextile;
(4) hot melt, is shaped by the hot melt of hot-rolling, makes the fiber hot melt adhesive of the Woven geofabric of upper and lower layer or the mutual cross winding of non-woven geotextile cloth cover, strengthens entanglement dynamics, improves peel strength, and makes flat appearance attractive in appearance;
(5) glue spraying, by spray-bonding craft make upper and lower layer Woven geofabric or non-woven geotextile mutually intersect tangle fiber bond further, improve the peel strength between upper and lower layer;
(6) lockstitch a border, by lock seaming quiltmg piocess, the upper and lower layer of product is linked into an integrated entity, prevents the bentonite in middle level not easily to run off;
(7) batch, by coiling machine by the curling rolling of final waterproof blanket product.
2. the processing technology of hot melt glue spraying type GCL according to claim 1, is characterized in that Woven geofabric is plastic flat wire braided geotextiles or long filament woven geotextile; Non-woven geotextile is terylene needling non-woven geotextiles or polypropylene fibre needling non-woven geotextiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800669.9A CN104441922B (en) | 2014-12-22 | 2014-12-22 | Heat the processing technology of glue spraying type GCL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800669.9A CN104441922B (en) | 2014-12-22 | 2014-12-22 | Heat the processing technology of glue spraying type GCL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104441922A true CN104441922A (en) | 2015-03-25 |
| CN104441922B CN104441922B (en) | 2017-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410800669.9A Expired - Fee Related CN104441922B (en) | 2014-12-22 | 2014-12-22 | Heat the processing technology of glue spraying type GCL |
Country Status (1)
| Country | Link |
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| CN (1) | CN104441922B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667056A (en) * | 2016-03-23 | 2016-06-15 | 常熟市阳硕无纺设备有限公司 | GCL (geosynthetic clay liner) bentonite waterproof blanket gluing and laminating machine |
| CN108457241A (en) * | 2018-06-01 | 2018-08-28 | 上海市园林设计研究总院有限公司 | A kind of salt-soda soil man-made lake ecotype waterproof subtracts the method oozed |
| CN110192477A (en) * | 2019-04-29 | 2019-09-03 | 同济大学 | A kind of Antiseepage water storage blanket and preparation method thereof for sand soil plantation |
| CN110607808A (en) * | 2019-10-16 | 2019-12-24 | 北京高能时代环境技术股份有限公司 | In-situ barrier coiled material for preventing pollutant from diffusing, preparation method and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424376A (en) * | 2002-12-30 | 2003-06-18 | 王桂林 | Bentonite waterproof material, production and special producing devices thereof |
| CN101929165A (en) * | 2010-08-27 | 2010-12-29 | 太仓市迅达路基材料有限公司 | Device and process for manufacturing double-sided needling water-proof blanket |
| CN202099883U (en) * | 2011-05-31 | 2012-01-04 | 新疆中非夏子街膨润土有限责任公司 | Waterproof blanket composited with bentonite |
| CN202148516U (en) * | 2011-06-15 | 2012-02-22 | 山东宏祥化纤集团有限公司 | Plant nutrient stain-resistant bentonite water-proof blanket |
| US20140044956A1 (en) * | 2012-08-10 | 2014-02-13 | Tegraseal Products, Llc | Hydrophilic rubber composition |
| CN203651125U (en) * | 2013-12-30 | 2014-06-18 | 新疆中非夏子街膨润土有限责任公司 | Sodium bentonite waterproof blanket |
-
2014
- 2014-12-22 CN CN201410800669.9A patent/CN104441922B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424376A (en) * | 2002-12-30 | 2003-06-18 | 王桂林 | Bentonite waterproof material, production and special producing devices thereof |
| CN101929165A (en) * | 2010-08-27 | 2010-12-29 | 太仓市迅达路基材料有限公司 | Device and process for manufacturing double-sided needling water-proof blanket |
| CN202099883U (en) * | 2011-05-31 | 2012-01-04 | 新疆中非夏子街膨润土有限责任公司 | Waterproof blanket composited with bentonite |
| CN202148516U (en) * | 2011-06-15 | 2012-02-22 | 山东宏祥化纤集团有限公司 | Plant nutrient stain-resistant bentonite water-proof blanket |
| US20140044956A1 (en) * | 2012-08-10 | 2014-02-13 | Tegraseal Products, Llc | Hydrophilic rubber composition |
| CN203651125U (en) * | 2013-12-30 | 2014-06-18 | 新疆中非夏子街膨润土有限责任公司 | Sodium bentonite waterproof blanket |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667056A (en) * | 2016-03-23 | 2016-06-15 | 常熟市阳硕无纺设备有限公司 | GCL (geosynthetic clay liner) bentonite waterproof blanket gluing and laminating machine |
| CN108457241A (en) * | 2018-06-01 | 2018-08-28 | 上海市园林设计研究总院有限公司 | A kind of salt-soda soil man-made lake ecotype waterproof subtracts the method oozed |
| CN108457241B (en) * | 2018-06-01 | 2024-04-09 | 上海市园林设计研究总院有限公司 | Ecological waterproof permeability-reducing method for artificial lake of saline-alkali soil |
| CN110192477A (en) * | 2019-04-29 | 2019-09-03 | 同济大学 | A kind of Antiseepage water storage blanket and preparation method thereof for sand soil plantation |
| CN110607808A (en) * | 2019-10-16 | 2019-12-24 | 北京高能时代环境技术股份有限公司 | In-situ barrier coiled material for preventing pollutant from diffusing, preparation method and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104441922B (en) | 2017-10-31 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171031 Termination date: 20191222 |