CN1111233C - Method for adhering sheet over seam on anti-leak construction using earth work film or composite earth work film - Google Patents
Method for adhering sheet over seam on anti-leak construction using earth work film or composite earth work film Download PDFInfo
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- CN1111233C CN1111233C CN 00131508 CN00131508A CN1111233C CN 1111233 C CN1111233 C CN 1111233C CN 00131508 CN00131508 CN 00131508 CN 00131508 A CN00131508 A CN 00131508A CN 1111233 C CN1111233 C CN 1111233C
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Abstract
The present invention relates to a method for adhering connecting edges of geomembranes or composite geomembranes in anti-leakage construction. Thermal melting adhesives, raw materials of which are plastic elastic bodies of petroleum pitch and styrene, are used for adhesion among the geomembranes, non-woven fabrics, the composite geomembranes and concrete. The present invention has the advantages of high adhesion speed, high viscosity strength and good anti-leakage effect.
Description
Technical field
The invention belongs to the bonding technology field, particularly a kind of geomembrane and composite geo-membrane be the edge fit adhering method in the antiseepage construction.
Background technology
Geomembrane (0.2-2mm thick polyethylene, igelite antiseepage film) and composite geo-membrane (polyethylene film, polychloroethylene film and polyester-type nonwoven or the non-woven fabric compounded body of polypropylene type) are because cost is low, construction is fast, good seepage-proof property is widely used in the field waterproof, seepage control engineering constructions such as water conservancy, electric power, traffic, environmental protection, building.Commonly used is polyvinyl chloride (PVC) geomembrane and polyvinyl chloride composite geo-membrane, polyethylene (PE) geomembrane and polyethylene composite geo-membrane at present, they all are the waterproof rolls of plant produced, therefore in the waterproof, seepage control engineering construction, must be bonded together every volume, abutting edge tensile strength is near mother metal.Sometimes need coiled material is adhered on the building, therefore in the coiled material laying construction, tend to run into one or more bonding modes between film and film, film and nonwoven, nonwoven and nonwoven, film and concrete, nonwoven and concrete material.PVC geomembrane and PVC composite geo-membrane, its film is mainly polyvinyl chloride resin, belongs to polar material, mostly adopt the cold construction bonding adhesive of solvent-borne type to carry out bonding between film and film, film and the concrete, but will hang behind the gluing, bonding speed is slow, than under the overall situation, adhesive effect is undesirable in humidity.Meet between film and nonwoven, nonwoven and nonwoven, nonwoven and concrete when bonding in the repeatedly coating of nonwoven cloth proofing need, glue infiltrates in the nonwoven layer, waste glue, need open assembly time long, glue has stopped up the non-woven fabrics fiber gap, influence its drain function, therefore adopt solvent-based adhesive to carry out PVC geomembrane and impermeable composite geomembrane and construct when bonding, certain limitation and deficiency are arranged.Its film of PE geomembrane and composite geo-membrane is the PE resin, is non-polar material, adopts general cold construction bonding adhesive effect bad, adopts mobile hot bonding machine hot weld method in its antiseepage construction at present, and its advantage is that speed of welding is fast, and is low to the large-area construction cost; Shortcoming is that welding quality is influenced by job site various factors such as temperature, wind-force, humidity, Base Smoothness etc., is difficult to guarantee.Require manufacturer must reserve enough welding edges (film and nonwoven are separated), need after the welding edge fit is reinforced, make it near bulk strength.Bonding between chance PE and nonwoven, nonwoven and nonwoven, PE film and concrete, nonwoven and concrete, the hot weld connection is powerless.
Summary of the invention
The object of the invention is to provide a kind of geomembrane and composite geo-membrane edge fit adhesive method in the antiseepage construction.Utilize this method to bond, bonding speed is fast, adhesion strength height, good seepage-proof property.
For reaching above-mentioned purpose, the present invention adopts following technical scheme: geomembrane and composite geo-membrane be the edge fit adhering method in the antiseepage construction, select for use with petroleum bitumen, styrene analog thermoplastic elastomer is the hot-melt adhesive of primary raw material preparation, be used for the construction of geomembrane and impermeable composite geomembrane, bonding between film and film, film and nonwoven, nonwoven and nonwoven, film and concrete, nonwoven and the concrete.
The average needle penetration 41-300 l/10mm of used petroleum bitumen, ball and ring softening point 30-35 ℃; Used styrene analog thermoplastic elastomer is meant styrene block copolymer, constitutes hard section and be made of soft section triblock copolymer SDS or segmented copolymer polydiene segment D by styrene segment S.
Described geomembrane is meant polyethylene and the polyvinyl chloride-type plastic leakage-proof film that 0.2-2mm is thick.
Described composite geo-membrane is meant polyethylene, polychloroethylene film and polyester-type or non-woven fabric compounded all-in-one-piece one cloth, one film of polypropylene type or two cloth, one membranous type waterproof roll liner.
Bonding adhesive among the present invention is a hot-melt adhesive, only needs heat fused during use, can be suitable for on-the-spot antiseepage construction and use easily being bonded to one securely between the geomembrane composite geo-membrane edge fit; This construction is because the cooling of bonding back is promptly curable, so speed is fast; Owing to both can avoid to avoid quality problems again because of the generation out of control of organic solvent evaporation rate because of organic solvent toxicity influences the healthy and contaminated environment of workman without organic solvent; Compare with the hot weld connection with solvent method, be subjected to environmental factor such as on-the-spot air humidity and construction ground site influence little.In addition, after adhering to geomembrane, composite geo-membrane on the concrete, PUR had both played cementation, can be used as the waterproofing course of one densification again, and film and glue-line play the antiseepage effect jointly, have improved the antiseepage ability.And because the glue-line elongation per unit length is big, can be adapted to base course crack, even base course crack, glue-line is still excellent, plays the effect of protection geomembrane.Utilize that bonding adhesive of the present invention carries out film-film bonding, film-cloth bonding, cloth-cloth is bonding and film-concrete adhesive property test sees the following form.Comparatively desirable by visible its adhesive effect of table, even the bonding adhesive cohesional failure, bonding surface does not have destruction, the edge fit good seepage-proof property.
Adhesive bonds performance table of the present invention
| Bonding mode | Adhesion strength | Test specimen destroys situation | Tester and normative reference |
| PE film-PE film | Shear strength 〉=0.14MPa | The fracture of PE composite geo-membrane | XL-1000A puller system GB/T2791-1995 G/T2990-1995 SL/T235-1999 |
| T peel strength 0.80KN/m | The bonding adhesive cohesional failure | ||
| PVC film-PVC film | Shear strength 0.12MPa | The bonding adhesive cohesional failure | |
| T peel strength 0.65KN/m | The bonding adhesive cohesional failure | ||
| PE film-nonwoven | Shear strength 〉=0.14MPa | The fracture of PE composite geo-membrane | |
| T peel strength 1.00KN/m | The bonding adhesive cohesional failure | ||
| Nonwoven-nonwoven | Shear strength 0.15MPa | The bonding adhesive cohesional failure | |
| T peel strength 1.20KN/m | The bonding adhesive cohesional failure | ||
| PE film-concrete | Shear strength 〉=0.14MPa | The fracture of PE composite geo-membrane | |
| 180 ° of peel strength 0.99KN/m | The bonding adhesive cohesional failure | ||
| PVC film-concrete | Shear strength 0.13MPa | The bonding adhesive cohesional failure | |
| 180 ° of peel strength 0.85KN/m | The bonding adhesive cohesional failure |
Hot-melt adhesive can prepare with following method among the present invention: 22gSBS is dissolved in the 52g toluene, makes uniform SBS solution.100g petroleum bitumen is added in the 500ml four-hole boiling flask of belt stirrer, thermometer, dropping funel, the cool condenser of distillation, calorify the above-mentioned SBS solution of adding under the 60-80 ℃ of stirring.Close dropping funel, heating steams toluene, and steaming is heated to 180-200 ℃ after finishing, and adds atoleine 4g, terpene resin 4g, CaCO
36g, antioxidant D 0.3g, stir, discharging cooling PUR.
Description of drawings
Fig. 1 is the composite geo-membrane structural representation;
Fig. 2, Fig. 3 are a cloth one film composite geo-membrane edge fit bonding mode schematic diagram;
Fig. 4, Fig. 5, Fig. 6 are two cloth, one membranous type composite geo-membrane edge fit bonding process schematic diagram;
Fig. 7 is composite geo-membrane and concrete bonding construction schematic diagram.
The specific embodiment
Embodiment 1, one cloth, one film PE composite geo-membrane is the edge fit adhesive method in the antiseepage construction, the composite geo-membrane edge fit is alignd, the location, fusing modified asphalt hot-melt glue evenly is painted on the composite geo-membrane surface, takes advantage of heat sealable lid film, beats with rubber hammer, not whole as basic unit, the removable five-ply board of edge fit underlay one wide 30cm.The edge fit adhesive structure is seen Fig. 2, Fig. 3.
1 (thick black line) is the rear glue-line that forms of edge fit bonding, and 2 is the geotechnological rete of composite geo-membrane, and 3 is the layer of cloth of composite geo-membrane, and 4 is the concrete layer.
Claims (4)
1, geomembrane and composite geo-membrane edge fit adhering method in the antiseepage construction, it is characterized in that selecting for use with petroleum bitumen, styrene analog thermoplastic elastomer is the hot-melt adhesive of primary raw material preparation, be used for the construction of geomembrane and impermeable composite geomembrane, bonding between film and film, film and nonwoven, nonwoven and nonwoven, film and concrete, nonwoven and the concrete.
2, adhesive method as claimed in claim 1 is characterized in that the average needle penetration 41-300 l/10mm of used petroleum bitumen, ball and ring softening point 30-35 ℃; Used styrene analog thermoplastic elastomer is meant styrene block copolymer, constitutes hard section and be made of soft section triblock copolymer SDS or segmented copolymer polydiene segment D by styrene segment S.
3, adhesive method as claimed in claim 1 or 2 is characterized in that polyethylene and polyvinyl chloride-type plastic leakage-proof film that described geomembrane is meant that 0.2-2mm is thick.
4, adhesive method as claimed in claim 1 or 2 is characterized in that described composite geo-membrane is meant polyethylene, polychloroethylene film and polyester-type or non-woven fabric compounded all-in-one-piece one cloth, one film of polypropylene type or two cloth, one membranous type waterproof roll liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131508 CN1111233C (en) | 2000-10-12 | 2000-10-12 | Method for adhering sheet over seam on anti-leak construction using earth work film or composite earth work film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131508 CN1111233C (en) | 2000-10-12 | 2000-10-12 | Method for adhering sheet over seam on anti-leak construction using earth work film or composite earth work film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1288095A CN1288095A (en) | 2001-03-21 |
| CN1111233C true CN1111233C (en) | 2003-06-11 |
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| CN 00131508 Expired - Fee Related CN1111233C (en) | 2000-10-12 | 2000-10-12 | Method for adhering sheet over seam on anti-leak construction using earth work film or composite earth work film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892620A (en) * | 2010-06-25 | 2010-11-24 | 中铁九局集团有限公司 | High intensity freezing damage prevention waterproof cushion layer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942842B (en) * | 2010-09-01 | 2012-11-14 | 偃师市天宇土工合成材料有限公司 | Composite geomembrane anti-seepage construction splicing method |
| CN104191776A (en) * | 2014-07-31 | 2014-12-10 | 山东浩阳新型工程材料股份有限公司 | Compound geomembrane |
| CN104631256A (en) * | 2015-01-12 | 2015-05-20 | 青海富腾生态科技有限公司 | Construction method of anti-freezing base cloth for permafrost subgrade |
| CN106009564A (en) * | 2016-06-22 | 2016-10-12 | 新疆加福萨斯石油设备有限公司 | Degradable and environment-friendly anti-seepage film for oil field and preparation method of degradable environment-friendly anti-seepage film |
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2000
- 2000-10-12 CN CN 00131508 patent/CN1111233C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892620A (en) * | 2010-06-25 | 2010-11-24 | 中铁九局集团有限公司 | High intensity freezing damage prevention waterproof cushion layer |
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| CN1288095A (en) | 2001-03-21 |
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Inventor after: Jiang Xuexing Inventor after: Yin Xiangdong Inventor after: Liu Fengbo Inventor after: Yuan Fang Inventor after: Feng Xia Inventor after: Su Qiansen Inventor before: Jiang Xuexing Inventor before: Yin Xiangdong Inventor before: Liu Fengbo Inventor before: Yuan Fang Inventor before: Feng Xia |
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Free format text: CORRECT: INVENTOR; FROM: JIANG XUEXING YIN XIANGDONG LIU FENGBO; YUAN FANG FENG XIA TO: JIANG XUEXING YIN XIANGDONG LIU FENGBO; YUAN FANG FENG XIA SU QIANSEN |
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