CN115195232A - High-permeability-resistance multi-cloth multi-membrane type composite geomembrane and preparation method thereof - Google Patents

High-permeability-resistance multi-cloth multi-membrane type composite geomembrane and preparation method thereof Download PDF

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Publication number
CN115195232A
CN115195232A CN202110397445.8A CN202110397445A CN115195232A CN 115195232 A CN115195232 A CN 115195232A CN 202110397445 A CN202110397445 A CN 202110397445A CN 115195232 A CN115195232 A CN 115195232A
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layer
woven
film
geotextile
composite
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吕建松
钟学秋
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Yunnan Zhanpeng Geotechnical Material Manufacturing Co ltd
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Yunnan Zhanpeng Geotechnical Material Manufacturing Co ltd
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    • A—HUMAN NECESSITIES
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    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
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  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Environmental Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Toxicology (AREA)
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Abstract

The invention discloses a high-permeability-resistance multi-cloth multi-membrane type composite geomembrane and a preparation method thereof in the technical field of building materials, wherein the high-permeability-resistance multi-cloth multi-membrane type composite geomembrane comprises a geotextile and a plastic film, the plastic film is fixedly connected to the surface of the geotextile, and the splicing layer is fixedly connected to the surface of the plastic film, so that the high-permeability-resistance multi-membrane type composite geomembrane has the beneficial effects that: according to the invention, the geotechnical cloth is of a six-layer structure, wherein the thickness and the weaving fiber radius of the protective layer are larger than those of the water absorption layer, the waterproof layer, the insect-proof layer, the reinforcing layer and the bonding layer, so that the protective layer can bear stronger friction force on the outer side, and the surface of the composite geotechnical film cannot be damaged due to long-time friction in the laying process; according to the invention, the water-absorbing sponge is arranged in the water-absorbing layer, so that when the composite geomembrane is in water, the water on the surface of the plastic film can be absorbed through the structural arrangement of the water-absorbing layer, the water pressure on the surface of the plastic film is reduced, and the plastic film is prevented from being broken by water pressure.

Description

High-permeability-resistance multi-cloth multi-membrane type composite geomembrane and preparation method thereof
Technical Field
The invention relates to the technical field of building materials, in particular to a high-permeability multi-cloth multi-film type composite geomembrane and a preparation method thereof.
Background
The composite geomembrane is widely applied to canal seepage-proofing engineering. The great application and the effect of the geosynthetic material in civil engineering, particularly in flood control and emergency work, arouse the high attention of the majority of engineering technicians. For the application technology of the geosynthetics, the state puts forward the normative technical requirements from the aspects of seepage prevention, reverse filtration, drainage, reinforcement, protection and the like, and the popularization and application pace of new materials is greatly accelerated. The material is widely applied to irrigation area channel seepage-proofing engineering, and is combined with construction practices and application technologies of shallow speaking composite geomembranes.
However, most of the existing composite geomembranes are two-cloth one-film in the using process, the geomembrane on the surface of the existing composite geomembrane is subjected to strong friction in the laying process, the connection strength cannot be ensured, the surface of the composite geomembrane is easily torn due to abrasion, and the composite geomembrane is penetrated, and the composite geomembrane is pre-embedded in the soil bottom in the laying process, so that insect feeding cannot be prevented, the composite geomembrane is easily perforated, and the plastic film in the composite geomembrane is easily penetrated by water pressure after being positioned at the water bottom for a long time.
Disclosure of Invention
The invention aims to provide a high-permeability-resistance multi-cloth multi-membrane type composite geomembrane and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a compound geomembrane of many cloths many membrane types of high impervious property, includes geotechnological cloth and plastic film, the fixed surface of geotechnological cloth is connected with plastic film, plastic film's fixed surface is connected with the concatenation layer.
Preferably, the geotextile comprises a protective layer, a water absorption layer, a waterproof layer, an insect prevention layer, a reinforcing layer and an adhesive layer, wherein the bottom end surface of the protective layer is fixedly connected with the water absorption layer, the bottom end surface of the water absorption layer is fixedly connected with the waterproof layer, the bottom end surface of the waterproof layer is fixedly connected with the insect prevention layer, the bottom end surface of the insect prevention layer is fixedly connected with the reinforcing layer, and the bottom end surface of the reinforcing layer is fixedly connected with the adhesive layer.
Preferably, the plastic film consists of a first PE film impermeable layer, a second PE film impermeable layer and a third PE film impermeable layer, the bottom end surface of the first PE film impermeable layer is fixedly connected with the second PE film impermeable layer, and the bottom end surface of the second PE film impermeable layer is fixedly connected with the third PE film impermeable layer.
Preferably, the surface is provided with the arch in the one end setting on concatenation layer, the inside breach that sets up of one end on concatenation layer.
Preferably, the preparation method of the high permeability resistance multi-cloth multi-film type composite geomembrane comprises the following steps:
the method comprises the following steps: preparing a high-permeability-resistance multi-cloth multi-membrane type composite geomembrane manufacturing raw material for standby, and ensuring the safety of fire-proof measures when the raw material is stored;
step two: firstly, preparing geotextile, wherein the geotextile is respectively composed of a protective layer, a water absorption layer, a waterproof layer, an insect-proof layer, a reinforcing layer and an adhesive layer, the protective layer, the water absorption layer, the waterproof layer, the insect-proof layer, the reinforcing layer and the adhesive layer are all made of nonwoven and woven composite geotextile, and the preparation raw material ratio of the nonwoven and woven composite geotextile is as follows: 50-70% of polyester staple fiber, 10-12% of polypropylene fiber, 10-12% of chinlon, 10-12% of vinylon, 5-10% of mixed fiber, 5% of curing agent, 3% of toughening agent, 2% of compatilizer, 1% of ultraviolet absorbent, 3% of antioxidant and 1% of auxiliary antioxidant;
step three: the weaving radius of the non-woven and woven composite geotextile of the protective layer is 5mm, the weaving distance of the non-woven and woven composite geotextile of the protective layer is 10mm, the weaving radius of the non-woven and woven composite geotextile of the water absorption layer is 5mm, the weaving distance of the non-woven and woven composite geotextile of the water absorption layer is 30mm, water absorption sponges are inserted into the weaving distance of the water absorption layer in a crossed manner, the weaving radius of the non-woven and woven composite geotextile of the waterproof layer is 1mm, the weaving distance of the non-woven and woven composite geotextile of the insect-proof layer is 2mm, the weaving distance of the non-woven and woven composite geotextile of the insect-proof layer is 5mm, the insect-proof layer is prepared to be soaked in an insecticide for 3 hours, then the insect-proof layer is taken out and naturally dried, the non-woven and woven composite geotextile of the reinforcing layer is 5mm, the weaving distance of the non-woven and woven composite geotextile of the woven and woven bonding layer is 5mm, and the bonding layer is coated with a bonding adhesive;
step four: the protective layer, the water absorbing layer, the waterproof layer, the insect-proof layer, the reinforcing layer and the bonding layer are sequentially arranged from top to bottom and are sewn into a whole through composite fiber threads;
step five: preparing a plastic film, wherein the plastic film is prepared from a first PE film impermeable layer, a second PE film impermeable layer and a third PE film impermeable layer, and the preparation ratio of the plastic film is as follows: 20-40% of polyvinyl chloride, 20-40% of polyethylene, 20-40% of ethylene/vinyl acetate copolymer, 15-30% of epoxy resin, 8-10% of silane coupling agent, 5-7% of cellulose acetate butyrate, 6% of fiber mixture, 5% of elastomer, 5% of antioxidant, 7% of plasticizer, 5% of heat-resistant agent and 2% of elastic silicone-acrylic emulsion;
step six: and heating one side surfaces of the first PE film impermeable layer and the third PE film impermeable layer by far infrared rays of an oven, respectively pressing the first PE film impermeable layer and the third PE film impermeable layer together with two groups of geotextiles by a guide roller, heating the other side surfaces of the first PE film impermeable layer and the third PE film impermeable layer by far infrared rays of the oven, respectively pressing the first PE film impermeable layer and the third PE film impermeable layer together with the second PE film impermeable layer, and enabling the geotextiles and the plastic film to form a whole.
Preferably, the curing agent is an aliphatic amine curing agent, and the toughening agent is amino-terminated liquid nitrile rubber.
Preferably, the composite fiber thread needs to penetrate through the gaps of the non-woven and woven composite geotextile in the sewing process of the protective layer, the water absorption layer, the waterproof layer, the insect-proof layer, the reinforcing layer and the bonding layer, so that the texture of the cloth is not damaged.
Preferably, the surfaces of the first PE film impermeable layer, the second PE film impermeable layer and the third PE film impermeable layer are coated with LLDPE/LDPE coating.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the geotechnical cloth is of a six-layer structure, wherein the thickness and the weaving fiber radius of the protective layer are larger than those of the water absorption layer, the waterproof layer, the insect-proof layer, the reinforcing layer and the bonding layer, so that the protective layer can bear stronger friction force on the outer side, and the surface of the composite geotechnical film cannot be damaged due to long-time friction in the laying process.
2. According to the invention, the water-absorbing sponge is arranged in the water-absorbing layer, so that when the composite geomembrane is in water, the water on the surface of the plastic film can be absorbed through the structural arrangement of the water-absorbing layer, the water pressure on the surface of the plastic film is reduced, and the plastic film is prevented from being broken by water pressure.
3. According to the invention, the insect-proof layer is soaked in the insecticide before being sewn, so that the smell of the insecticide is remained on the surface of the insect-proof layer after the insect-proof layer is naturally dried, and the composite geomembrane can be prevented from being bitten by insects when being buried in soil.
4. According to the invention, the geotechnical cloth is arranged into a six-layer structure, and the six-layer structure is formed by sewing the composite fiber threads, so that the connection tightness is enhanced.
5. The plastic film is formed by hot-pressing and compounding the first PE film impermeable layer, the second PE film impermeable layer and the third PE film impermeable layer, so that the impermeability is enhanced, and the installation tightness is enhanced.
Drawings
FIG. 1 is a three-dimensional schematic of the structure of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to the present invention;
FIG. 4 is a schematic cross-sectional view of the structure of the present invention;
FIG. 5 is a schematic cross-sectional view of the structure of the present invention.
In the figure: 1. geotextile; 101. a protective layer; 102. a water-absorbing layer; 103. a waterproof layer; 104. an insect-repellent layer; 105. a reinforcement layer; 106. an adhesive layer; 2. a plastic film; 201. a first PE film barrier layer; 202. a second PE film barrier layer; 203. a third PE film barrier layer; 3. and (6) splicing the layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a compound geomembrane of many cloth multi-membrane type of high impervious, includes geotechnological cloth 1 and plastic film 2, and the fixed surface of geotechnological cloth 1 is connected with plastic film 2, and the fixed surface of plastic film 2 is connected with concatenation layer 3.
The geotextile 1 consists of a protective layer 101, a water absorption layer 102, a waterproof layer 103, an insect-proof layer 104, a reinforcing layer 105 and an adhesive layer 106, wherein the water absorption layer 102 is fixedly connected to the bottom surface of the protective layer 101, the waterproof layer 103 is fixedly connected to the bottom surface of the water absorption layer 102, the insect-proof layer 104 is fixedly connected to the bottom surface of the waterproof layer 103, the reinforcing layer 105 is fixedly connected to the bottom surface of the insect-proof layer 104, the adhesive layer 106 is fixedly connected to the bottom surface of the reinforcing layer 105, and the geotextile 1 is of a six-layer structure, wherein the thickness and the weaving fiber radius of the protective layer 101 are larger than those of the water absorption layer 102, the waterproof layer 103, the insect-proof layer 104, the reinforcing layer 105 and the adhesive layer 106, so that the protective layer 101 can bear stronger friction at the outer side, the surface of the composite geomembrane cannot be damaged due to long-time friction in the laying process, and a water absorption sponge is arranged inside the water absorption layer 102, when the composite geomembrane is in water, the water on the surface of the plastic film 2 can be adsorbed by the structural arrangement of the water absorption layer 102, the water pressure on the surface of the plastic film 2 is reduced, the plastic film 2 is prevented from being broken by water pressure, the weaving density of the waterproof layer 103 is greater than that of the protective layer 101 and the water absorption layer 102, the waterproof layer 103 can further prevent water from directly penetrating through the geotextile 1 to be contacted with the plastic film 2, meanwhile, the insect-proof layer 104 is soaked in the insecticide before sewing, the smell of the insecticide is remained on the surface after the insect-proof layer 104 is naturally dried, the composite geomembrane can be prevented from being bitten by insects when being buried in soil, the protective layer 101, the water absorption layer 102, the waterproof layer 103, the insect-proof layer 104, the reinforcing layer 105 and the bonding layer 106 are sewn in the reinforcing layer 105 through the penetration of composite fiber lines, so that the integral structure of the geotextile 1 is firmer and is anti-friction and anti-breaking, the function of the bonding layer 106 is to ensure that the geotextile 1 and the plastic film 2 are more tightly compounded in a hot pressing manner, so that gaps are prevented from being left inside the geotextile after long-time use;
the plastic film 2 consists of a first PE film impermeable layer 201, a second PE film impermeable layer 202 and a third PE film impermeable layer 203, the bottom end surface of the first PE film impermeable layer 201 is fixedly connected with the second PE film impermeable layer 202, the bottom end surface of the second PE film impermeable layer 202 is fixedly connected with the third PE film impermeable layer 203, and the plastic film 2 is formed by hot-pressing and compounding the first PE film impermeable layer 201, the second PE film impermeable layer 202 and the third PE film impermeable layer 203, so that the impermeability is enhanced, and the installation tightness is enhanced;
the surface of one end of the splicing layer 3 is provided with a bulge, a notch is formed in one end of the splicing layer 3, and a plurality of groups of composite geomembranes are spliced after the splicing layer 3 is spliced, so that the splicing gap of the composite geomembranes is reduced;
the first embodiment is as follows:
the preparation method of the high-permeability-resistance multi-cloth multi-membrane type composite geomembrane comprises the following steps of:
the method comprises the following steps: preparing a high-permeability-resistance multi-cloth multi-membrane type composite geomembrane manufacturing raw material for standby, and ensuring the safety of fire prevention measures when the raw material is stored;
step two: firstly, preparing a geotextile 1, wherein the geotextile is respectively composed of a protective layer 101, a water absorption layer 102, a waterproof layer 103, an insect prevention layer 104, a reinforcing layer 105 and an adhesive layer 106, the protective layer 101, the water absorption layer 102, the waterproof layer 103, the insect prevention layer 104, the reinforcing layer 105 and the adhesive layer 106 are all made of non-woven and woven composite geotextile, and the preparation raw material ratio of the non-woven and woven composite geotextile is as follows: 50-70% of polyester staple fiber, 10-12% of polypropylene fiber, 10-12% of chinlon, 10-12% of vinylon, 5-10% of mixed fiber, 5% of curing agent, 3% of toughening agent, 2% of compatilizer, 1% of ultraviolet absorbent, 3% of antioxidant and 1% of auxiliary antioxidant;
step three: the weaving radius of the non-woven and woven composite geotextile of the protective layer 101 is 5mm, the weaving distance of the non-woven and woven composite geotextile of the protective layer 101 is 10mm, the weaving radius of the non-woven and woven composite geotextile of the water absorption layer 102 is 5mm, the weaving distance of the non-woven and woven composite geotextile of the water absorption layer 102 is 30mm, water absorption sponges are inserted into the weaving distance of the water absorption layer 102 in a crossed manner, the weaving distance of the non-woven and woven composite geotextile of the waterproof layer 103 is 1mm, the weaving distance of the non-woven and woven composite geotextile of the insect-proof layer 104 is 2mm, the weaving distance of the non-woven and woven composite geotextile of the insect-proof layer 104 is 5mm, the insect-proof layer 104 is made to be soaked in an insecticide for 3h after being manufactured, then taken out to be naturally dried, the weaving radius of the non-woven and woven composite geotextile of the reinforcing layer 105 is 5mm, and the reinforcing adhesive layer 105 is coated with the bonding layer 105 mm, and the reinforcing adhesive is coated with the bonding layer of the woven composite geotextile;
step four: the protective layer 101, the water absorption layer 102, the waterproof layer 103, the insect prevention layer 104, the reinforcing layer 105 and the adhesive layer 106 are sequentially arranged from top to bottom and are sewn into a whole through composite fiber threads;
step five: preparing a plastic film 2, wherein the plastic film is prepared from a first PE film impermeable layer 201, a second PE film impermeable layer 202 and a third PE film impermeable layer 203, and the preparation ratio of the plastic film 2 is as follows: 20-40% of polyvinyl chloride, 20-40% of polyethylene, 20-40% of ethylene/vinyl acetate copolymer, 15-30% of epoxy resin, 8-10% of silane coupling agent, 5-7% of cellulose acetate butyrate, 6% of fiber mixture, 5% of elastomer, 5% of antioxidant, 7% of plasticizer, 5% of heat-resistant agent and 2% of elastic silicone-acrylic emulsion;
step six: one side surfaces of the first PE film impermeable layer 201 and the third PE film impermeable layer 203 are heated by far infrared rays of an oven and are pressed together with two groups of geotextiles through guide rollers respectively, and the other side surfaces of the first PE film impermeable layer 201 and the third PE film impermeable layer 203 are heated by far infrared rays of the oven and are pressed together with the second PE film impermeable layer 202 respectively, so that the geotextile 1 and the plastic film 2 are integrated.
The curing agent is fatty amine curing agent, and the toughening agent is amino-terminated liquid nitrile rubber.
The composite fiber line needs to penetrate through the gaps of the non-woven and woven composite geotextile in the sewing process of the protective layer 101, the water absorption layer 102, the waterproof layer 103, the insect-proof layer 104, the reinforcing layer 105 and the bonding layer 106, so that the texture of the cloth is not damaged, the wear resistance of the geotextile is improved, and the damaged surface of the geotextile is prevented from being torn.
LLDPE/LDPE coatings are coated on the surfaces of the first PE film impermeable layer 201, the second PE film impermeable layer 202 and the third PE film impermeable layer 203, so that the flexibility, the chemical corrosion resistance, the ultraviolet resistance, the ozone resistance and the ageing resistance of the product are enhanced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a compound geomembrane of many cloth multi-membrane type of high impervious, includes geotechnological cloth (1) and plastic film (2), its characterized in that: the surface of the geotextile (1) is fixedly connected with the plastic film (2), and the surface of the plastic film (2) is fixedly connected with the splicing layer (3).
2. The high permeability resistance multi-cloth multi-film type composite geomembrane according to claim 1, wherein: geotechnique's cloth (1) comprises protective layer (101), layer (102) that absorbs water, waterproof layer (103), protection against insects layer (104), back up coat (105) and bond line (106), the bottom fixed surface of protective layer (101) is connected with layer (102) absorbs water, the bottom fixed surface on layer (102) that absorbs water is connected with waterproof layer (103), the bottom fixed surface on waterproof layer (103) is connected with protection against insects layer (104), the bottom fixed surface on protection against insects layer (104) is connected with back up coat (105), the bottom fixed surface on back up coat (105) is connected with bond line (106).
3. The high permeability resistance multi-cloth multi-film type composite geomembrane according to claim 1, wherein: the plastic film (2) is composed of a first PE film anti-seepage layer (201), a second PE film anti-seepage layer (202) and a third PE film anti-seepage layer (203), the bottom end surface of the first PE film anti-seepage layer (201) is fixedly connected with the second PE film anti-seepage layer (202), and the bottom end surface of the second PE film anti-seepage layer (202) is fixedly connected with the third PE film anti-seepage layer (203).
4. The high permeability resistance multi-cloth multi-film type composite geomembrane according to claim 1, wherein: the splicing layer is characterized in that a protrusion is arranged on the surface of one end of the splicing layer (3), and a notch is formed in one end of the splicing layer (3).
5. The high permeability resistance multi-cloth multi-film type composite geomembrane according to any one of claims 1 to 4, wherein: the preparation method of the composite geomembrane comprises the following steps:
the method comprises the following steps: preparing a high-permeability-resistance multi-cloth multi-membrane type composite geomembrane manufacturing raw material for standby, and ensuring the safety of fire prevention measures when the raw material is stored;
step two: firstly, preparing a geotextile (1), wherein the geotextile is respectively composed of a protective layer (101), a water absorption layer (102), a waterproof layer (103), an insect-proof layer (104), a reinforcing layer (105) and an adhesive layer (106), the protective layer (101), the water absorption layer (102), the waterproof layer (103), the insect-proof layer (104), the reinforcing layer (105) and the adhesive layer (106) are all made of nonwoven and woven composite geotextile, and the preparation raw material ratio of the nonwoven and woven composite geotextile is as follows: 50-70% of polyester staple fiber, 10-12% of polypropylene fiber, 10-12% of chinlon, 10-12% of vinylon, 5-10% of mixed fiber, 5% of curing agent, 3% of toughening agent, 2% of compatilizer, 1% of ultraviolet absorbent, 3% of antioxidant and 1% of auxiliary antioxidant;
step three: the weaving radius of the non-woven and woven composite geotextile of the protective layer (101) is 5mm, the weaving distance of the non-woven and woven composite geotextile of the protective layer (101) is 10mm, the weaving radius of the non-woven and woven composite geotextile of the water absorption layer (102) is 5mm, the weaving distance of the non-woven and woven composite geotextile of the water absorption layer (102) is 30mm, water absorption sponges are inserted into the weaving distance of the water absorption layer (102) in a crossed manner, the weaving radius of the non-woven and woven composite geotextile of the waterproof layer (103) is 1mm, the weaving distance of the non-woven and woven composite geotextile of the waterproof layer (103) is 1mm, the weaving radius of the non-woven and woven composite geotextile of the insect-proof layer (104) is 2mm, the weaving distance of the non-woven and woven composite geotextile of the insect-proof layer (104) is 5mm, the non-woven and woven composite geotextile of the insect-woven and woven composite geotextile of the waterproof layer (103) needs to be soaked in an insecticide for 3h after being manufactured, the non-woven and woven composite geotextile of the insect-woven and the adhesive layer (105) is taken out and naturally dried, the non-woven and woven composite geotextile of the reinforcing layer (105) is 5mm, the weaving distance of the woven composite geotextile is 105, and the woven bonding layer (105) is 105 mm, and the woven composite geotextile reinforcing layer is 5mm, and the woven bonding layer is a composite geotextile bonding layer (105, and the woven bonding layer is a bonding layer (105) and the woven bonding layer is coated with composite geotextile bonding layer 105, and the woven bonding layer is coated with woven bonding layer 105 mm;
step four: sequentially arranging a protective layer (101), a water absorption layer (102), a waterproof layer (103), an insect-proof layer (104), a reinforcing layer (105) and an adhesive layer (106) from top to bottom, and sewing the protective layer, the water absorption layer (102), the waterproof layer, the insect-proof layer (104), the reinforcing layer (105) and the adhesive layer (106) into a whole through composite fiber threads;
step five: preparing a plastic film (2), wherein the plastic film is prepared from a first PE film impermeable layer (201), a second PE film impermeable layer (202) and a third PE film impermeable layer (203), and the preparation ratio of the plastic film (2) is as follows: 20-40% of polyvinyl chloride, 20-40% of polyethylene, 20-40% of ethylene/vinyl acetate copolymer, 15-30% of epoxy resin, 8-10% of silane coupling agent, 5-7% of cellulose acetate butyrate, 6% of fiber mixture, 5% of elastomer, 5% of antioxidant, 7% of plasticizer, 5% of heat-resistant agent and 2% of elastic silicone-acrylic emulsion;
step six: one side surfaces of the first PE film impermeable layer (201) and the third PE film impermeable layer (203) are heated by far infrared rays of an oven and are pressed together with two groups of geotextiles through guide rollers respectively, and the other side surfaces of the first PE film impermeable layer (201) and the third PE film impermeable layer (203) are heated by far infrared rays of the oven and are pressed together with the second PE film impermeable layer (202) respectively, so that the geotextile (1) and the plastic film (2) are integrated.
6. The high permeability resistance multi-cloth multi-film type composite geomembrane according to claim 5, wherein: the curing agent is an aliphatic amine curing agent, and the toughening agent is amino-terminated liquid nitrile rubber.
7. The high permeability resistance multi-cloth multi-film type composite geomembrane according to claim 5, wherein: the composite fiber line needs to penetrate through the gaps of the non-woven and woven composite geotextile in the sewing process of the protective layer (101), the water absorption layer (102), the waterproof layer (103), the insect-proof layer (104), the reinforcing layer (105) and the bonding layer (106), and the texture of the fabric is not damaged.
8. The high permeability resistance multi-cloth multi-film type composite geomembrane according to claim 5, wherein: and LLDPE/LDPE coatings are coated on the surfaces of the first PE film anti-seepage layer (201), the second PE film anti-seepage layer (202) and the third PE film anti-seepage layer (203).
CN202110397445.8A 2021-04-14 2021-04-14 High-permeability-resistance multi-cloth multi-membrane type composite geomembrane and preparation method thereof Pending CN115195232A (en)

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Citations (1)

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CN112029185A (en) * 2020-09-02 2020-12-04 中国铁道科学研究院集团有限公司金属及化学研究所 High-strength and puncture-resistant geomembrane and preparation method and application thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112029185A (en) * 2020-09-02 2020-12-04 中国铁道科学研究院集团有限公司金属及化学研究所 High-strength and puncture-resistant geomembrane and preparation method and application thereof

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