CN104818703A - Aramid fiber high-strength geogrid - Google Patents
Aramid fiber high-strength geogrid Download PDFInfo
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- CN104818703A CN104818703A CN201510265741.7A CN201510265741A CN104818703A CN 104818703 A CN104818703 A CN 104818703A CN 201510265741 A CN201510265741 A CN 201510265741A CN 104818703 A CN104818703 A CN 104818703A
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Abstract
The invention provides an aramid fiber high-strength geogrid. An aramid fiber-reinforced thermoplastic polymer material is adopted to prepare a geogrid rib strip coating layer, geogrid rib strips are prepared through the coating of aramid fiber bundles, and the geogrid prepared through the geogrid rib strips is high in tensile strength and low in breaking elongation. Aramid fiber is adopted to serve as a geogrid reinforcement material, so that the geotechnical material has anti-creeping performance and is suitable for long-term use; and after filler and processing agents are added in melt extrusion, the aramid fiber high-strength geogrid can have good corrosion resistance and ageing resistance. The aramid fiber high-strength geogrid is simple in preparation process and excellent in comprehensive performances and can be continuously produced and have a certain market competitiveness.
Description
Technical field
The present invention relates to technical field of polymer materials, the high-strength geo-grid of especially a kind of aramid fiber.
Background technology
Aramid fiber is also called " PPTA ", a kind of novel high-tech synthetic fibers, there is superhigh intensity, high-modulus and high temperature resistant, acid-fast alkali-proof, the premium properties such as lightweight, its intensity is 5 ~ 6 times of steel wire, and modulus is 2 ~ 3 times of steel wire or glass fiber, and toughness is 2 times of steel wire, and weight is only about 1/5 of steel wire, at the temperature of 560 degree, do not decompose, do not melt.It has good insulating properties and ageing resistace, has very long life cycle.
Aramid fiber owing to having excellent performance, thus is used as the reinforcing material of thermoplastic polymer, epoxy, polyester and other resins, makes the component of various aviation, aerospace and other military uses.
Adopt thermoplastic polymer parcel aramid fiber to prepare aramid fiber rib, then be prepared into the high-strength geo-grid of aramid fiber by ultrasonic bonding rib.Because aramid fiber has excellent mechanics and chemical property, it is high that prepared aramid fiber geo-grid has tensile strength, and elongation at break is lower, and the performance such as acidproof, alkaline-resisting, corrosion-resistant, anti-aging, is applicable to Long-Time Service preferably.
China Patent Publication No. CN103741663A, disclosed " a kind of earth grille " on April 23rd, 2014.This kind of earth grille, the net structure being woven coating by filament of glass fiber forms.This filament of glass fiber is made up of silica.The earth grille that this invention provides, physicochemical property has stable, and has that intensity is large, modulus is high, very high abrasion resistance and excellent in cold,
Without long-term creep; Heat stability is good; Net structure makes embedding and restriction; Improve the weight capacity of bituminous mixture.Make it have double composite performance because surface scribbles special modified bitumen, drastically increase abrasion resistance and the shear ability of geo-grid.
China Patent Publication No. CN101956354A, disclosed " high-strength glass-plastic compound geogrid " on January 26th, 2011.This patent relates to a kind of high-strength glass-plastic compound geogrid, and the rib tape that this geo-grid is wrapped up through high density polyethylene (HDPE) interlayer by criss-cross arrangement glass bundle forms, and this rib tape is welded as a whole through ultrasonic.The high-strength earth work grille of this invention had both enhanced the tensile strength of grid, improve the creep-resistant property of grid, extended again the application life of grid.Rib tape and rib tape are welded by ultrasonic in length and breadth.Glass bundle in rib tape according to requirement of engineering, can change the pulling force size of rib tape with different-diameter and radical.
As can be seen here, above-mentioned patent does not all relate to and adopts aramid fiber enhancing thermoplastic polymer to prepare aramid fiber geo-grid.
Summary of the invention
The object of the invention is: provide a kind of aramid fiber high-strength geo-grid, its tensile strength is high and fracture elongation is low, and preparation technology is simple, excellent combination property.
The present invention is achieved in that the high-strength geo-grid of aramid fiber, comprises integument, and integument to be melt extruded through extruder by thermoplastic polymer, filler, carbon black and processing aid and is prepared from; Grid rib wraps up continuous print aramid fiber bundle by integument and is prepared from, then is staggered by geo-grid rib and connects into different networks.
Described thermoplastic polymer is any combination of one or more in PP, PE, PA6, PA66, PVC, PC, POM or PS.
Described aramid fiber bundle is more than 1 bundle.
The type of described aramid fiber bundle is 10-5000D.
Described filler is any combination of one or more in calcium carbonate, calcium carbonate crystal whisker, calcium sulfate, calcium sulfate crystal whiskers, silicon carbide whisker, ZnOw, short aramid fiber, glass fiber, silica, montmorillonite or mica powder.
Described auxiliary agent is any combination of age resister, paraffin, stearic acid, calcium stearate or zinc stearate wherein one or more.
Described work grate type trellis-type is triangular form or quadrangle.
The connection of described geo-grid rib is that ultrasonic bonding, sweat soldering or fixture are fixed.
In described integument, calculate by weight, comprise 85-90 part thermoplastic polymer, 7.5-10 part filler, 1-2.5 part carbon black and 1.5-3 part processing aid.
Owing to have employed above technical scheme, the present invention adopts aramid fiber enhancing thermoplastic, polymeric materials to prepare geo-grid rib clad, by to aramid fiber Shu Jinhang coated preparation geo-grid rib, it is high that the geo-grid prepared by this geo-grid rib has good tensile strength, and its elongation at break is lower.Adopt aramid fiber as Fill Reinforced With Geogrids material, make earth working material have creep resisting performance, be applicable to Long-Time Service; After adding filler and processing aid in melt extruding, the performance such as corrosion-resistant, anti-aging preferably can be had.This kind of geo-grid preparation technology is simple, and excellent combination property, can carry out continuous print production, have certain market competitiveness.The present invention is simple, with low cost, and result of use is good.
Accompanying drawing explanation
Accompanying drawing 1 is the product structure schematic diagram of embodiments of the invention 1;
Accompanying drawing 2 is the product structure schematic diagram of embodiments of the invention 2.
Detailed description of the invention
Embodiments of the invention 1: the high-strength geo-grid of aramid fiber, calculate by weight, 90 parts of HDPE, 7.5 parts of calcium sulfate crystal whiskers, 1 part of carbon black, 0.5 part of anti-light stabilizing agent and 1 part of paraffin are added in double screw extruder and melt extrudes, restrainted by the aramid fiber 100 2 of extruder die head and 50D and carry out melting compound, through compound impregnation parcel, be prepared into geo-grid rib by traction, cooling unit.Through cutting, ultrasonic bonding quadrangularly grid type geo-grid, as shown in Figure 1; Obtained aramid fiber geo-grid hot strength is 600MPa, and fracture elongation is 5%.
Embodiments of the invention 1: the high-strength geo-grid of aramid fiber, calculate by weight, 85 parts of PP, 10 parts of ZnOws, 2 parts of carbon blacks, 0.5 part of anti-light stabilizing agent and 2.5 parts of stearic acid are melt extruded on the twin screw extruder, restrainted by the aramid fiber 100 8 of extruder die head and 200D and carry out melting compound, through compound impregnation parcel, be prepared into geo-grid rib by traction, cooling unit; After cropped, triangle grid type geo-grid is connected into by supersonic welding, as shown in Figure 2; Obtained aramid fiber geo-grid hot strength is 1500MPa, and fracture elongation is 3%.
Of the present inventionly be not limited to the embodiment described in detailed description of the invention, those skilled in the art's technical scheme according to the present invention draws and other embodiment belongs to technological innovation scope of the present invention equally.Obvious those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. the high-strength geo-grid of aramid fiber, is characterized in that: comprise integument, and integument to be melt extruded through extruder by thermoplastic polymer, filler, carbon black and processing aid and is prepared from; Grid rib wraps up continuous print aramid fiber bundle by integument and is prepared from, then is staggered by geo-grid rib and connects into different networks.
2. the high-strength geo-grid of aramid fiber according to claim 1, is characterized in that: described thermoplastic polymer is any combination of one or more in PP, PE, PA6, PA66, PVC, PC, POM or PS.
3. the high-strength geo-grid of aramid fiber according to claim 1, is characterized in that: described aramid fiber bundle is more than 1 bundle.
4. the high-strength geo-grid of the aramid fiber according to claim 1 or 3, is characterized in that: the type of described aramid fiber bundle is 10-5000D.
5. the high-strength geo-grid of aramid fiber according to claim 1, is characterized in that: described filler is any combination of one or more in calcium carbonate, calcium carbonate crystal whisker, calcium sulfate, calcium sulfate crystal whiskers, silicon carbide whisker, ZnOw, short aramid fiber, glass fiber, silica, montmorillonite or mica powder.
6. the high-strength geo-grid of aramid fiber according to claim 1, is characterized in that: described auxiliary agent is any combination of age resister, paraffin, stearic acid, calcium stearate or zinc stearate wherein one or more.
7. the high-strength geo-grid of aramid fiber according to claim 1, is characterized in that: described work grate type trellis-type is triangular form or quadrangle.
8. the high-strength geo-grid of aramid fiber according to claim 1, is characterized in that: the connection of described geo-grid rib is that ultrasonic bonding, sweat soldering or fixture are fixed.
9. the high-strength geo-grid of aramid fiber according to claim 1, is characterized in that: in described integument, calculate by weight, comprises 85-90 part thermoplastic polymer, 7.5-10 part filler, 1-2.5 part carbon black and 1.5-3 part processing aid.
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| CN201510265741.7A CN104818703A (en) | 2015-05-24 | 2015-05-24 | Aramid fiber high-strength geogrid |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086284A (en) * | 2016-11-19 | 2018-05-29 | 江苏鼎泰工程材料有限公司 | A kind of high-strength band and preparation method thereof |
| CN110483892A (en) * | 2019-08-28 | 2019-11-22 | 河北金标建材科技股份有限公司 | A kind of new material grid and its manufacturing method |
| CN111234555A (en) * | 2020-03-30 | 2020-06-05 | 山东交通学院 | Geocell based on medical waste, preparation method and application |
| CN111363241A (en) * | 2020-04-10 | 2020-07-03 | 山东交通学院 | Geogrid prepared by recycling medical waste, preparation method thereof and foundation reinforcement application |
| CN113006098A (en) * | 2021-03-01 | 2021-06-22 | 南通市达欣工程股份有限公司 | Geogrid for slope |
| CN113174921A (en) * | 2021-05-11 | 2021-07-27 | 中国科学院武汉岩土力学研究所 | Polymer blending type geocell and manufacturing method thereof |
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| CN1525027A (en) * | 2003-02-28 | 2004-09-01 | 深圳市海川实业股份有限公司 | Application of aramid fiber grille in concrete structural engineering |
| CN201635079U (en) * | 2009-12-01 | 2010-11-17 | 哈尔滨市路同科技发展有限公司 | Fiber-plastic compound geogrid |
| CN101956354A (en) * | 2009-07-16 | 2011-01-26 | 宜兴市华泰土工材料有限公司 | High-intensity glass and plastic compound geogrid |
| CN102153878A (en) * | 2011-03-02 | 2011-08-17 | 青岛威东科高分子材料有限公司 | Preparation method for conductive polymer sheathing material |
| CN103804779A (en) * | 2012-11-13 | 2014-05-21 | 安邦电气集团有限公司 | High temperature resistant PTC (positive temperature coefficient) composite material used for automatic temperature limiting electric tracing band cable and preparation method thereof |
| CN104277295A (en) * | 2014-10-14 | 2015-01-14 | 贵州蓝图新材料有限公司 | Preparation method of glass fiber reinforced geogrids |
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2015
- 2015-05-24 CN CN201510265741.7A patent/CN104818703A/en active Pending
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| CN1525027A (en) * | 2003-02-28 | 2004-09-01 | 深圳市海川实业股份有限公司 | Application of aramid fiber grille in concrete structural engineering |
| CN101956354A (en) * | 2009-07-16 | 2011-01-26 | 宜兴市华泰土工材料有限公司 | High-intensity glass and plastic compound geogrid |
| CN201635079U (en) * | 2009-12-01 | 2010-11-17 | 哈尔滨市路同科技发展有限公司 | Fiber-plastic compound geogrid |
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| CN103804779A (en) * | 2012-11-13 | 2014-05-21 | 安邦电气集团有限公司 | High temperature resistant PTC (positive temperature coefficient) composite material used for automatic temperature limiting electric tracing band cable and preparation method thereof |
| CN104277295A (en) * | 2014-10-14 | 2015-01-14 | 贵州蓝图新材料有限公司 | Preparation method of glass fiber reinforced geogrids |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086284A (en) * | 2016-11-19 | 2018-05-29 | 江苏鼎泰工程材料有限公司 | A kind of high-strength band and preparation method thereof |
| CN110483892A (en) * | 2019-08-28 | 2019-11-22 | 河北金标建材科技股份有限公司 | A kind of new material grid and its manufacturing method |
| CN111234555A (en) * | 2020-03-30 | 2020-06-05 | 山东交通学院 | Geocell based on medical waste, preparation method and application |
| CN111363241A (en) * | 2020-04-10 | 2020-07-03 | 山东交通学院 | Geogrid prepared by recycling medical waste, preparation method thereof and foundation reinforcement application |
| WO2021203781A1 (en) * | 2020-04-10 | 2021-10-14 | 山东交通学院 | Geogrid prepared from recycled and treated medical waste, preparation method therefor and application thereof in foundation reinforcement |
| CN113006098A (en) * | 2021-03-01 | 2021-06-22 | 南通市达欣工程股份有限公司 | Geogrid for slope |
| CN113174921A (en) * | 2021-05-11 | 2021-07-27 | 中国科学院武汉岩土力学研究所 | Polymer blending type geocell and manufacturing method thereof |
| CN113174921B (en) * | 2021-05-11 | 2023-02-28 | 中国科学院武汉岩土力学研究所 | Polymer blending type geocell and manufacturing method thereof |
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