CN108691071B - Polypropylene reinforced filtering geosynthetic fabric and manufacturing method thereof - Google Patents
Polypropylene reinforced filtering geosynthetic fabric and manufacturing method thereof Download PDFInfo
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- CN108691071B CN108691071B CN201810751948.9A CN201810751948A CN108691071B CN 108691071 B CN108691071 B CN 108691071B CN 201810751948 A CN201810751948 A CN 201810751948A CN 108691071 B CN108691071 B CN 108691071B
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- -1 Polypropylene Polymers 0.000 title claims abstract description 90
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 80
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 80
- 239000004744 fabric Substances 0.000 title claims abstract description 37
- 238000001914 filtration Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000004746 geotextile Substances 0.000 claims abstract description 22
- 238000009941 weaving Methods 0.000 claims abstract description 22
- 230000008520 organization Effects 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 5
- 229920002994 synthetic fiber Polymers 0.000 claims description 5
- 238000005282 brightening Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 230000003712 anti-aging effect Effects 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 239000002216 antistatic agent Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 239000004088 foaming agent Substances 0.000 claims description 3
- 239000012760 heat stabilizer Substances 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002667 nucleating agent Substances 0.000 claims description 3
- 239000004014 plasticizer Substances 0.000 claims description 3
- 239000012744 reinforcing agent Substances 0.000 claims description 3
- 239000006254 rheological additive Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 239000012745 toughening agent Substances 0.000 claims description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 3
- 239000000326 ultraviolet stabilizing agent Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000013021 overheating Methods 0.000 claims description 2
- 210000001519 tissue Anatomy 0.000 claims 15
- 238000010521 absorption reaction Methods 0.000 claims 2
- 238000001035 drying Methods 0.000 claims 2
- 230000002708 enhancing effect Effects 0.000 claims 2
- 238000004804 winding Methods 0.000 claims 2
- 239000004594 Masterbatch (MB) Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000006224 matting agent Substances 0.000 claims 1
- 239000006078 metal deactivator Substances 0.000 claims 1
- 210000003205 muscle Anatomy 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 18
- 238000010276 construction Methods 0.000 abstract description 12
- 238000002955 isolation Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 3
- 239000004745 nonwoven fabric Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000001223 reverse osmosis Methods 0.000 description 3
- 239000004595 color masterbatch Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006081 fluorescent whitening agent Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/004—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft with weave pattern being non-standard or providing special effects
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
A polypropylene reinforced filtration geotextile and a manufacturing method thereof, comprising warp yarns, weft yarns I and weft yarns II, wherein the warp yarns and the weft yarns I are polypropylene monofilaments, and the weft yarns II are polypropylene split filaments; the fabric structure circulation unit is 10 weft yarns, two weaving arrangement ratios of weft yarn I and weft yarn II in each circulation unit are respectively 1:1 and 2:1, and the weaving structure between the weft yarn I and the warp yarn is thatThe weaving structure between the weft yarn II and the warp yarn is; The invention designs a variable fabric structure by adopting high-strength polypropylene flat filaments, round filaments, triangular filaments and split filaments and weaves the variable fabric structure by a loom, integrates the construction advantages of geotechnical materials such as grids, non-woven fabrics, common filament woven geotechnical fabrics and the like used in the existing engineering, and solves the isolation, high permeability, high tensile strength and tensile modulus simultaneously required in engineering construction.
Description
Technical Field
The invention relates to the technical field of geosynthetic fabrics, in particular to a polypropylene reinforced filtering geosynthetic fabric and a manufacturing method thereof.
Background
In capital construction engineering construction, most geosynthetics contribute significantly to the engineering construction. Each geosynthetic material has specificity to engineering construction design, and high requirements on the comprehensive performance of the geosynthetic material including isolation, permeability and mechanical properties are required in road construction and foundation treatment. The engineering non-woven fabric has good permeability and isolation performance, but has poor mechanical index and low tensile modulus; although the geogrid has good tensile modulus, the geogrid has poor covering capability on soil, fine sand and broken stone, and cannot achieve isolation effect.
The polypropylene reinforced filtering geosynthetic fabric designed by the invention has good isolation effect, permeability, reverse permeability and tensile modulus. The polypropylene reinforced filtering geotechnical synthetic fabric has good isolation and permeability in road foundation construction, has high tensile strength and tensile modulus, and high friction with soil, fine sand and broken stone, shortens engineering construction time, reduces land settlement foundation deformation, prevents reverse osmosis of foundation sediment, has an isolation effect, and prolongs the service life of a road.
Disclosure of Invention
In order to solve the problems, the invention provides a polypropylene reinforced filtering geotextile with high permeability, high tensile strength, high tensile modulus and good isolation and a manufacturing method thereof.
A polypropylene reinforced filtration geotextile comprises warp yarns, weft yarns I and weft yarns II, wherein the warp yarns and the weft yarns I are polypropylene monofilaments, and the weft yarns II are polypropylene split filaments; the fabric structure circulation unit is composed of 10 weft yarns, two weaving arrangement ratios of weft yarn I and weft yarn II in each circulation unit are respectively 1:1 and 2:1, and the weaving structure between the weft yarn I and the warp yarn is thatThe weaving structure between the weft yarn II and the warp yarn is/>。
Further, the warp yarn and the weft yarn I are made of polypropylene and filler, and the weft yarn II is made of polypropylene, polyethylene and filler.
In one place, the warp yarn I is a polypropylene monofilament, and the weft yarn II is a polypropylene split yarn; the cross section of the warp yarn and the weft yarn I is one of rectangle, triangle and circle.
Further, the polypropylene monofilament comprises 94% -98% by weight of polypropylene, 2% -6% by weight of filler.
Further, the polypropylene split yarn comprises a mixture of 82% -85% by weight of polypropylene, 9% -15% by weight of polyethylene, 3% -6% by weight of filler;
Further, the filler is one or more of color master batch, reinforcing agent, toughening agent, delustrant, heat stabilizer, ultraviolet absorber, ultraviolet stabilizer, anti-aging agent, antioxidant, metal passivating agent, tackifier, viscosity reducer, fluorescent whitening agent, sulfur-containing synergist, flame retardant, nucleating agent, plasticizer, lubricant, emulsifier, rheological additive, catalyst, fluidizer, brightening agent, fireproof agent, antistatic agent and foaming agent.
Further, the linear density of the warp yarn and the weft yarn I is 600dtex-2000dtex, the strength is 5.5cn/dtex-6.0cn/dtex, the elongation is 8-10%, the 2% constant elongation load accounts for 35% of the breaking load, and the 5% constant elongation load accounts for 70% of the breaking load.
Further, the linear density of the weft yarn II is 3000dtex-6000dtex, the strength is 6.0cn/dtex-6.5cn/dtex, the elongation is 6% -8%, the 2% constant elongation load accounts for 40% of the breaking load, and the 5% constant elongation load accounts for 90% of the breaking load.
Further, the warp density of the fabric is 100 pieces/10 cm-150 pieces/10 cm; the weft density of the fabric is 30 pieces/10 cm-100 pieces/10 cm.
The manufacturing method of the synthetic fabric comprises the steps that 1 weft yarn I, 1 weft yarn II, 2 weft yarns I, 1 weft yarn II, 1 weft yarn I, 1 weft yarn II, 2 weft yarns I and 1 weft yarn II are respectively led in sequence when weft yarns are interwoven with warp yarn 1, and the weave is circularly divided into 10 weft yarns and 4 warp yarns; the first warp yarn is interwoven with the weft yarn I to sequentially form 1 warp organization point, 3 weft organization points, 1 warp organization point and 1 weft organization point; the first warp yarn is interwoven with the weft yarn II to sequentially form 1 weft tissue point and 3 warp tissue points; the second warp yarn is interwoven with the weft yarn I to sequentially form 3 warp organization points, 1 weft organization point, 1 warp organization point and 1 weft organization point; the second warp yarn is interwoven with the weft yarn II to sequentially form 1 weft organization point, 1 warp organization point and 2 weft organization points; the third warp yarn is interwoven with the weft yarn I to sequentially form 3 weft tissue points, 1 warp tissue point, 1 weft tissue point and 1 warp tissue point; the third warp yarn is interwoven with the weft yarn II to sequentially form 2 warp organization points, 1 weft organization point and 1 warp organization point; the fourth warp yarn is interwoven with the weft yarn I to sequentially form 1 weft tissue point, 1 warp tissue point, 1 weft tissue point and 3 warp tissue points; the fourth warp yarn is interwoven with the weft yarn II to sequentially form 3 weft tissue points and 1 warp tissue point.
The beneficial effects of the invention are as follows: the invention designs a variable fabric structure by adopting high-strength polypropylene flat yarns, round yarns, triangular yarns and split yarns and weaves the variable fabric structure by a loom, integrates the construction advantages of geotextiles such as grids, non-woven fabrics, common filament woven geotextiles and the like used in the existing engineering, and solves the problems of isolation, high permeability, high tensile strength and tensile modulus which are simultaneously required in engineering construction, and adopts polypropylene monofilament warp yarns, weft yarns I of polypropylene monofilaments and weft yarns II of polypropylene split yarns; formed by weft yarns I and warp yarnsIs formed by weft yarns II and warp yarns-The second weaving structure of the fabric is formed into an irregular and uniform fabric structure, so that the aperture and permeability of the fabric can be effectively increased, the tensile modulus and friction of the fabric are improved, rapid infiltration and filtration can be realized during use, the sedimentation of a soft foundation is reduced, and the stability of an engineering foundation structure is improved.
Drawings
FIG. 1 is a schematic structural view of the synthetic fabric of the present invention.
FIG. 2 is a schematic block diagram of the process steps of the polypropylene monofilament drawing process of the present invention.
FIG. 3 is a schematic block diagram of the process steps of the polypropylene split yarn drawing process of the present invention.
In the figure: 1. warp yarn 2, weft yarn I, weft yarn 3 and weft yarn II.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in more detail below with reference to the accompanying drawings.
In the description of the present invention, it should be understood that the description of the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in figure 1, the polypropylene reinforced filtering geotextile comprises warp 1, weft I2 and weft II 3, wherein the warp 1 and the weft I2 are polypropylene monofilaments, and the weft II 3 is polypropylene split yarns; the fabric structure circulation unit is composed of 10 weft yarns, two weaving arrangement ratios of 1:1 and 2:1 are respectively arranged in weft yarn I2 and weft yarn II 3 in each circulation unit, and the weaving structure between weft yarn I2 and warp yarn 1 is thatThe weaving structure between the weft yarn II 3 and the warp yarn 1 is。
The warp yarn 1 and the weft yarn I2 are made of polypropylene and filler, and the weft yarn II 3 is made of polypropylene, polyethylene and filler.
The warp yarn 1 and the weft yarn I2 are polypropylene monofilaments, and the weft yarn II 3 is polypropylene split yarns; the cross section of the warp yarn 1 and the weft yarn I2 is one of rectangle, triangle and circle.
The polypropylene monofilament comprises 94% -98% by weight of polypropylene, 2% -6% by weight of filler.
As shown in figure 2, the specific process steps of polypropylene monofilament drawing are as follows:
The prepared materials are dried by the wire drawing process principle and then are added into the hopper of the extruder, and the materials are forced to push to the machine head along with the rotation of the screw rod. As the volume of the spiral groove is continuously reduced, the material is continuously compacted and discharged with gas in the advancing process, and simultaneously is extruded and sheared, the temperature of the material is gradually increased by increasing the temperature and absorbing the heat source of the heater, and the material is gradually changed from a glass state to a high-elastic state through tri-state conversion, finally becomes a viscous state, achieves complete plasticization and is extruded from the spinneret orifice of the spinneret plate. Cooling and shaping in a cooling water tank, controlling the water temperature at 30-40 ℃ and the distance between the spinneret plate and the water surface at 30-50mm. The blank wires are separated into 3 parts from a spinneret plate, each wire passes through a fixed wire separating groove, adjacent wires are not staggered and overlapped, surface moisture is removed from the blank wires through a vacuum dehydration device, the blank wires are prevented from being broken due to local overheating in an oven, the blank wires are stretched and oriented when passing through the oven due to the fact that the linear speed of a drafting device is multiple times that of a traction device, the original disordered polymer chains are orderly arranged in an oriented mode, accordingly, the relative breaking force is enhanced, the blank wires are heated and shaped through 3 groups of rollers, internal stress is eliminated, and finally the blank wires are coiled and shaped.
The process parameters are as follows in table 1:
The polypropylene split yarn comprises a mixture of 82% -85% by weight of polypropylene, 9% -15% by weight of polyethylene and 3% -6% by weight of filler.
As shown in fig. 3, the specific process steps of the polypropylene split yarn drawing are as follows:
The prepared materials are dried by the wire drawing process principle and then are added into the hopper of the extruder, and the materials are forced to push to the machine head along with the rotation of the screw rod. As the volume of the spiral groove is continuously reduced, the material is continuously compacted and discharged with gas in the advancing process, and simultaneously is extruded and sheared, the temperature of the material is gradually increased by increasing the temperature and absorbing the heat source of the heater, and the material is gradually changed from a glass state to a high-elastic state through tri-state conversion, finally becomes a viscous state, achieves complete plasticization, and extrudes a film from the T-shaped die lip. The film is discharged from the T-shaped die lip and enters a cooling water tank for cooling and shaping, the water temperature is controlled at 30-40 ℃, and the height of the T-shaped die lip from the water surface is 30-50mm. The film is subjected to vacuum dehydration to remove surface moisture, the film is changed into a blank wire with a certain width through a cutting device, when the blank wire passes through a baking oven, the blank wire is heated and stretched to be oriented, so that the original disordered polymer chains are oriented and orderly arranged, the relative breaking force is enhanced, and then the film is shaped through 2 groups of hot rollers and 1 normal temperature roller to eliminate internal stress, and finally is coiled and formed.
The process parameters are as follows in table 2:
The filler is one or more of color master batch, reinforcing agent, toughening agent, delustrant, heat stabilizer, ultraviolet absorber, ultraviolet stabilizer, anti-aging agent, antioxidant, metal passivating agent, tackifier, viscosity reducer, fluorescent whitening agent, sulfur-containing synergist, flame retardant, nucleating agent, plasticizer, lubricant, emulsifying agent, rheological additive, catalyst, flow control agent, brightening agent, fire retardant, antistatic agent and foaming agent.
The linear density of the warp yarn 1 and the weft yarn I2 is 600dtex-2000dtex, the strength is 5.5cn/dtex-6.0cn/dtex, the elongation is 8% -10%, the 2% constant elongation load accounts for 35% of the breaking load, and the 5% constant elongation load accounts for 70% of the breaking load.
The linear density of the weft yarn II 3 is 3000dtex-6000dtex, the strength is 6.0cn/dtex-6.5cn/dtex, the elongation is 6% -8%, the 2% constant elongation load accounts for 40% of the breaking load, and the 5% constant elongation load accounts for 90% of the breaking load.
The warp density of the fabric is 100 pieces/10 cm-150 pieces/10 cm; the weft density of the fabric is 30 pieces/10 cm-100 pieces/10 cm.
Example 1
The polypropylene reinforced filtering geotextile comprises warp 1, weft I2 and weft II 3, wherein the warp 1 adopts a polypropylene flat monofilament with a flat rectangular cross section, the linear density is 1000dtex, and the warp density is 148/10 cm; the weft yarn I2 is made of polypropylene round filaments 580dtex, the weft yarn II 3 is made of polypropylene split filaments 4500dtex, the weft density of the weft yarn I2 is 60/10 cm, the weft density of the weft yarn II 3 is 40/10 cm, the fabric tissue circulation unit is 10 weft yarns, and two weaving arrangement ratios of the weft yarn I2 and the weft yarn II 3 in each circulation unit are respectively 1:1 and 2:1; with two weave patterns, weft yarn I2 and warp yarn 1Is formed by weft yarn II 3 and warp yarn 1Is a second woven structure of (a). Because the flat monofilament has high tensile modulus, the weft yarn I2 and the weft yarn II 3 have large linear density, cross section shape and area difference, and the tensile modulus and the permeability of the geosynthetic fabric are improved by adopting two weaving structures.
Example 2
The polypropylene reinforced filtering geotextile comprises warp 1, weft I2 and weft II 3, wherein the warp 1 adopts polypropylene round monofilaments with round cross sections, the linear density is 1500dtex, and the warp density is 120/10 cm; the weft yarn I2 is made of 600dtex polypropylene round filaments, the weft yarn II 3 is made of 4000dtex polypropylene split filaments, the weft density of the weft yarn I2 is 60/10 cm, and the weft density of the weft yarn II 3 is 36/10 cm. The fabric structure circulation unit is composed of 10 weft yarns, and two weaving arrangement ratios of 1:1 and 2:1 are respectively arranged in weft yarn I2 and weft yarn II 3 in each circulation unit; with two weave patterns, weft yarn I2 and warp yarn 1Is formed by weft yarn II 3 and warp yarn 1Is a second woven structure of (a). Because the flat monofilament has high tensile modulus, the weft yarn I2 and the weft yarn II 3 have large linear density, cross section shape and area difference, and the tensile modulus and the permeability of the geosynthetic fabric are improved by adopting two weaving structures.
Example 3
The polypropylene reinforced filtering geotextile comprises warp 1, weft I2 and weft II 3, wherein the warp 1 adopts polypropylene monofilaments with triangular cross sections, the linear density is 1250dtex, and the warp density is 127/10 cm; the weft yarn I2 is made of polypropylene flat monofilament 680dtex, the weft yarn II 3 is made of polypropylene split yarn 5000dtex, the weft density of the weft yarn I2 is 58/10 cm, and the weft density of the weft yarn II 3 is 35/10 cm. The fabric structure circulation unit is composed of 10 weft yarns, and two weaving arrangement ratios of 1:1 and 2:1 are respectively arranged in weft yarn I2 and weft yarn II 3 in each circulation unit; with two weave patterns, weft yarn I2 and warp yarn 1Is formed by weft yarn II 3 and warp yarn 1Is a second woven structure of (a). Because the flat monofilament has high tensile modulus, the weft yarn I2 and the weft yarn II 3 have large linear density, cross section shape and area difference, and the tensile modulus and the permeability of the geosynthetic fabric are improved by adopting two weaving structures.
The method for manufacturing the synthetic fabric in the above embodiment is as follows: when the weft yarns interweave with the warp yarn 1,1 weft yarn I2, 1 weft yarn II 3, 2 weft yarns I2, 1 weft yarn II 3, 1 weft yarn I2, 1 weft yarn II 3, 2 weft yarns I2 and 1 weft yarn II 3 are sequentially respectively drawn, and the weave is circularly performed to obtain 10 weft yarns and 4 warp yarns 1; the first warp yarn 1 is interwoven with the weft yarn I2 to sequentially form 1 warp organization point, 3 weft organization points, 1 warp organization point and 1 weft organization point; the first warp yarn 1 is interwoven with the weft yarn II 3 to sequentially form 1 weft organization point and 3 warp organization points; the second warp yarn 1 is interwoven with the weft yarn I2 to sequentially form 3 warp organization points, 1 weft organization point, 1 warp organization point and 1 weft organization point; the second warp yarn 1 is interwoven with the weft yarn II 3 to sequentially form 1 weft organization point, 1 warp organization point and 2 weft organization points; the third warp yarn 1 interweaves with the weft yarn I2 to form 3 weft organization points, 1 warp organization point, 1 weft organization point and 1 warp organization point in sequence; the third warp yarn 1 is interwoven with the weft yarn II 3 to sequentially form 2 warp organization points, 1 weft organization point and 1 warp organization point; the fourth warp yarn 1 is interwoven with the weft yarn I2 to sequentially form 1 weft organization point, 1 warp organization point, 1 weft organization point and 3 warp organization points; the fourth warp yarn 1 interweaves with the weft yarn II 3 to form 3 weft organization points and 1 warp organization point in sequence.
The invention adopts polypropylene monofilaments as warp yarn 1, weft yarn I2 of the polypropylene monofilaments and weft yarn II 3 of the polypropylene split yarn; warp yarn 1 has large fine warp and forms a fabric with a large pore diameter, and two kinds of fabric structures are adopted, and weft yarn I2 and warp yarn 1 formIs formed by weft yarn II 3 and warp yarn 1The second weaving structure of the warp yarn 1 is formed into a tubular structure by the weft yarns in the weave circulation, so that the number of interweaving of the warp yarns is reduced, the tensile modulus of the warp direction is improved, and the permeability is improved. The linear density, the cross section shape and the area of the weft yarn I2 and the weft yarn II 3 are greatly different, the surface of the fabric is rugged, and the friction of the surface of the fabric is increased.
The geotextile woven by polypropylene filaments of the prior art is used as a comparative example, and the geotextile woven by the above example 1 is respectively compared with the conventional geotextile woven by polypropylene filaments for testing the warp tensile strength, the warp tensile elongation, the 5% constant elongation load, the effective aperture O 90 and the permeability Q 50, and the test standard is referred to GB/T15788-2005. The test results are shown in Table 3.
Table 3 test results
As can be seen from table 3, in the case that the warp and weft yarn linear density and the weaving density are the same, the tensile elongation of example 1 is significantly lower, the constant elongation load at 2% and 5% is high, the tensile modulus corresponding to the fabric is high, and the fabric has better permeability, compared with the polypropylene filament woven geotextile and the common polypropylene geotextile.
The invention adopts the high-modulus polypropylene yarn, the cross section of the warp yarn 1 is flat rectangle, round and triangle, and the yarn linear density is small; the weft yarns are woven by polypropylene monofilaments and split yarns alternately, the warp elongation is low, the constant elongation load of 2% and 5% is high, the tensile modulus is obviously improved, and the permeability is good; the weave structure is formed by two types of weft yarns I2 and warp yarn 1Weft yarn II 3 with warp yarn 1/>The second weaving structure of the warp yarn 1, the weft yarn and the warp yarn 1 form a tubular structure in the weave circulation, the interweaving times of the warp yarn and the weft yarn are reduced, the gap in the fabric is increased, the tensile modulus of the warp direction is improved, and the permeability is improved. Can show good isolation effect, permeability and reverse osmosis and tensile modulus when used in engineering. The engineering construction time is shortened, the deformation of the land subsidence foundation is reduced, the reverse osmosis of the foundation sediment is prevented, the isolation effect is achieved, and the service life of the road is prolonged.
Other than the features described in the specification, are known to those skilled in the art.
Claims (9)
1. The utility model provides a polypropylene adds muscle and filters geotechnique's synthetic fabric, includes warp (1), woof I (2), woof II (3), its characterized in that: the warp yarn (1) and the weft yarn I (2) are polypropylene monofilaments, and the weft yarn II (3) is polypropylene split yarns; the fabric weave pattern recycle unit is 10 weft yarns,
When the weft yarns are interwoven with the warp yarns (1), 1 weft yarn I (2), 1 weft yarn II (3), 2 weft yarns I (2), 1 weft yarn II (3), 1 weft yarn I (2), 1 weft yarn II (3), 2 weft yarns I (2) and 1 weft yarn II (3) are sequentially respectively drawn, and the weave is circulated to form 10 weft yarns and 4 warp yarns (1); two weaving arrangement ratios of 1:1 and 2:1 are respectively arranged in the weft yarn I (2) and the weft yarn II (3) in each circulation unit,
The weaving structure between the weft yarn I (2) and the warp yarn (1) is，
The first warp yarn (1) is interwoven with the weft yarn I (2) to sequentially form 1 warp organization point, 3 weft organization points, 1 warp organization point and 1 weft organization point;
The second warp yarn (1) is interwoven with the weft yarn I (2) to form 3 warp organization points, 1 weft organization point, 1 warp organization point and 1 weft organization point in sequence;
the third warp yarn (1) is interwoven with the weft yarn I (2) to sequentially form 3 weft tissue points, 1 warp tissue point, 1 weft tissue point and 1 warp tissue point;
The fourth warp yarn (1) is interwoven with the weft yarn I (2) to sequentially form 1 weft tissue point, 1 warp tissue point, 1 weft tissue point and 3 warp tissue points;
The weaving structure between the weft yarn II (3) and the warp yarn (1) is ；
The first warp yarn (1) is interwoven with the weft yarn II (3) to form 1 weft tissue point and 3 warp tissue points in sequence;
the second warp yarn (1) is interwoven with the weft yarn II (3) to sequentially form 1 weft tissue point, 1 warp tissue point and 2 weft tissue points;
the third warp yarn (1) is interwoven with the weft yarn II (3) to sequentially form 2 warp organization points, 1 weft organization point and 1 warp organization point;
the fourth warp yarn (1) is interwoven with the weft yarn II (3) to form 3 weft tissue points and 1 warp tissue point in sequence;
the specific process steps of the polypropylene monofilament wire drawing are as follows:
firstly, drying the prepared materials, adding the dried materials into a hopper of an extruder, and forcibly pushing the materials to a machine head along with the rotation of a screw rod;
Secondly, as the volume of the spiral groove is continuously reduced, the material is continuously compacted and discharged with gas in the advancing process, and simultaneously is extruded and sheared, the temperature is increased and the heat source of the absorption heater gradually increases the temperature of the material, and the material is gradually changed from a glass state to a high-elastic state through tri-state conversion, and finally becomes a viscous state, so that the material is completely plasticized;
thirdly, extruding from a spinneret orifice of a spinneret plate;
fourthly, cooling and shaping in a cooling water tank, controlling the water temperature to be 30-40 ℃, and controlling the distance between a spinneret plate and the water surface to be 30-50mm;
Fifthly, dividing the blank wires from a spinneret plate into 3 parts, enabling each wire to pass through fixed wire dividing grooves, enabling adjacent wires to be free of interlacing and lap joint, removing surface moisture from the blank wires through a vacuum dehydration device, preventing the blank wires from being broken due to local overheating in an oven, enabling the original disordered polymer chains to be orderly arranged in an oriented mode due to the fact that the linear speed of a drafting device is multiple times that of a traction device when the blank wires pass through the oven, enhancing relative breaking force, enabling the blank wires to be heated and shaped through 3 groups of rollers, eliminating internal stress, and finally winding and shaping;
The specific process steps of the polypropylene split yarn wire drawing are as follows:
firstly, drying the prepared materials, adding the dried materials into a hopper of an extruder, and forcibly pushing the materials to a machine head along with the rotation of a screw rod;
Secondly, as the volume of the spiral groove is continuously reduced, the material is continuously compacted and discharged with gas in the advancing process, and simultaneously is extruded and sheared, the temperature is increased and the heat source of the absorption heater gradually increases the temperature of the material, and the material is gradually changed from a glass state to a high-elastic state through tri-state conversion, and finally becomes a viscous state, so that the material is completely plasticized;
Thirdly, extruding the film from the T-shaped die lip, wherein the film exits from the T-shaped die lip;
Fourthly, cooling and shaping in a cooling water tank, wherein the water temperature is controlled to be 30-40 ℃, and the height of the T-shaped die lip from the water surface is 30-50mm;
Fifthly, removing surface moisture of the film through a vacuum dehydration device, changing the film into a blank wire with a certain width through a cutting device, heating the blank wire while stretching and orienting the blank wire when the blank wire passes through a baking oven, enabling the original disordered polymer chains to be orderly arranged in an oriented mode, enhancing the relative breaking force, shaping through 2 groups of hot rollers and 1 normal temperature roller, eliminating internal stress, and finally winding and shaping.
2. A polypropylene reinforced filtration geotextile as claimed in claim 1, wherein said warp yarns (1) and weft yarns i (2) are polypropylene and filler, and said weft yarns ii (3) are polypropylene, polyethylene and filler.
3. A polypropylene reinforced filtration geotextile as claimed in claim 1, wherein the warp yarns (1) and weft yarns i (2) have a cross-sectional shape of one of rectangular, triangular, circular.
4. A polypropylene reinforced filtration geotextile as claimed in claim 3, wherein said polypropylene monofilaments comprise 94% to 98% polypropylene, 2% to 6% filler by weight.
5. A polypropylene reinforced filtration geotextile as claimed in claim 3, wherein said polypropylene split filaments comprise a blend of 82% to 85% polypropylene, 9% to 15% polyethylene, 3% to 6% filler by weight.
6. A polypropylene reinforced filtration geotextile as claimed in claim 2, 4 or 5 wherein said filler is one or more of a masterbatch, a reinforcing agent, a toughening agent, a matting agent, a heat stabilizer, an ultraviolet absorber, an ultraviolet stabilizer, an anti-aging agent, an antioxidant, a metal deactivator, a tackifier, a viscosity reducer, an optical brightening agent, a sulfur-containing synergist, a flame retardant, a nucleating agent, a plasticizer, a lubricant, an emulsifier, a rheological additive, a catalyst, a fluidizer, a brightening agent, a fire retardant, an antistatic agent, and a foaming agent.
7. A polypropylene reinforced filtration geotextile as claimed in claim 1 wherein said warp yarns (1) and weft yarns i (2) have a linear density of 600dtex to 2000dtex, a strength of 5.5cn/dtex to 6.0cn/dtex, an elongation of 8% to 10%, a 2% constant elongation load of 35% and a 5% constant elongation load of 70% of the break load.
8. A polypropylene reinforced filtration geotextile as claimed in claim 1 wherein said weft yarn ii (3) has a linear density of 3000dtex to 6000dtex, a strength of 6.0cn/dtex to 6.5cn/dtex, an elongation of 6% to 8%, a 2% constant elongation load of 40% and a 5% constant elongation load of 90% of the break load.
9. A polypropylene reinforced filtration geotextile as claimed in claim 1, wherein said fabric has a warp density of from 100/10 cm to 150/10 cm; the weft density of the fabric is 30 pieces/10 cm-100 pieces/10 cm.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241497A (en) * | 2019-07-02 | 2019-09-17 | 浩珂科技有限公司 | A kind of filtering draining geosynthetic fabrics |
| CN110904562A (en) * | 2019-12-14 | 2020-03-24 | 江苏常编集成科技有限公司 | Fabric structure and weaving mode of geotextile tube bag |
| BR112023004708A2 (en) * | 2020-09-16 | 2023-04-18 | Nicolon Corp D/B/A Tencate Geosynthetics Americas | GEOSYNTHETIC FABRIC FABRIC AND METHOD FOR MAKING SAID FABRIC |
| CN113089162A (en) * | 2021-05-06 | 2021-07-09 | 河北乾烨金属制品有限公司 | Geotextile, geotextile bag and weaving method of geotextile for water conservancy engineering |
| CN113987882B (en) * | 2021-10-29 | 2024-04-12 | 北京理工大学 | Digital modeling method for microstructure yarn structure of woven composite material |
| CN115434060A (en) * | 2022-08-29 | 2022-12-06 | 徐州顺天工业用布有限公司 | Single-layer PP split-film silk laying cloth and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944008A (en) * | 2006-10-24 | 2007-04-11 | 上海新纺织产业用品有限公司 | Earth-work fabric of inter woven flat monofilament and split film yarn and its use |
| CN201006926Y (en) * | 2006-10-24 | 2008-01-16 | 上海新纺织产业用品有限公司 | Sludge blocking prevention earth work fabric |
| CN103174175A (en) * | 2012-05-20 | 2013-06-26 | 河北宝源工程橡塑有限公司 | Split film yarn-woven geotextile and preparation method thereof |
| CN104912052A (en) * | 2015-06-11 | 2015-09-16 | 江苏常编集成科技有限公司 | Geotextile tube bag and making method thereof |
| CN204753001U (en) * | 2015-06-11 | 2015-11-11 | 江苏常编集成科技有限公司 | Geotechnique's pipe bag is weaved with machine |
| CN106968041A (en) * | 2017-05-25 | 2017-07-21 | 浩珂科技有限公司 | A kind of unidirectional high-strength woven geotextiles |
| CN107366273A (en) * | 2017-07-19 | 2017-11-21 | 纤科工业（珠海）有限公司 | A kind of durable reinforcement filter screen and preparation method thereof |
| CN207713892U (en) * | 2017-12-19 | 2018-08-10 | 浩珂科技有限公司 | A kind of polypropylene reinforcement filtering geotextiles |
| CN208980864U (en) * | 2018-07-10 | 2019-06-14 | 浩珂科技有限公司 | A kind of polypropylene reinforcement filtering geosynthetic fabrics |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8333220B2 (en) * | 2006-06-01 | 2012-12-18 | Nicolon Corporation | Double layer woven fabric |
| US10024022B2 (en) * | 2013-12-10 | 2018-07-17 | Willacoochee Industrial Fabrics, Inc. | Woven geotextile fabrics |
-
2018
- 2018-07-10 CN CN201810751948.9A patent/CN108691071B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944008A (en) * | 2006-10-24 | 2007-04-11 | 上海新纺织产业用品有限公司 | Earth-work fabric of inter woven flat monofilament and split film yarn and its use |
| CN201006926Y (en) * | 2006-10-24 | 2008-01-16 | 上海新纺织产业用品有限公司 | Sludge blocking prevention earth work fabric |
| CN103174175A (en) * | 2012-05-20 | 2013-06-26 | 河北宝源工程橡塑有限公司 | Split film yarn-woven geotextile and preparation method thereof |
| CN104912052A (en) * | 2015-06-11 | 2015-09-16 | 江苏常编集成科技有限公司 | Geotextile tube bag and making method thereof |
| CN204753001U (en) * | 2015-06-11 | 2015-11-11 | 江苏常编集成科技有限公司 | Geotechnique's pipe bag is weaved with machine |
| CN106968041A (en) * | 2017-05-25 | 2017-07-21 | 浩珂科技有限公司 | A kind of unidirectional high-strength woven geotextiles |
| CN107366273A (en) * | 2017-07-19 | 2017-11-21 | 纤科工业（珠海）有限公司 | A kind of durable reinforcement filter screen and preparation method thereof |
| CN207713892U (en) * | 2017-12-19 | 2018-08-10 | 浩珂科技有限公司 | A kind of polypropylene reinforcement filtering geotextiles |
| CN208980864U (en) * | 2018-07-10 | 2019-06-14 | 浩珂科技有限公司 | A kind of polypropylene reinforcement filtering geosynthetic fabrics |
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