CN2532099Y - Nano material modified geotextile - Google Patents
Nano material modified geotextile Download PDFInfo
- Publication number
- CN2532099Y CN2532099Y CN 02218333 CN02218333U CN2532099Y CN 2532099 Y CN2532099 Y CN 2532099Y CN 02218333 CN02218333 CN 02218333 CN 02218333 U CN02218333 U CN 02218333U CN 2532099 Y CN2532099 Y CN 2532099Y
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- nano
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- utility
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- composite earthwork
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Abstract
Disclosed is composite geotechnical cloth with improved nano-material, which has a needle prick combined double-layer structure, the first layer is a non-woven fabric layer (1), and the other layer is a braiding geotechnical cloth layer (2), and wefts (3) and warps (4) are all polgolefin braiding threads with improved nano-material. The nano-material is calcium carbonate with treated surface and nanometer-sized particle diameter, and the polgolefin is the polypropylene. The utility model maintains the original rigidity, and increases the primary technical indicators such as the tensile strength by about 10-15 percent; meanwhile, the utility model has the capability of ultraviolet ray resistance, and has the optimum price performance ratio. The utility model is applied to geotechnical engineering such as railways, highways, water conservancy, construction and mining.
Description
Technical field
The utility model relates to a kind of nano-material modified composite earthwork cloth, belongs to NEW TYPE OF COMPOSITE geotechnique material.
Background technology
Along with the fast development of foundation engineerings such as China's road construction, hydraulic engineering, geosynthetics receives publicity day by day, wherein the market demand maximum of geotextiles.Existing geotextiles is by the TPO synthetic material mostly, and especially polypropylene is the material knitting geotextiles.Though polypropylene has good P/C ratio, but, because the intrinsic relatively poor shortcoming of mechanical property of polypropylene itself can not satisfy the high request of engineering constructions such as modernized road, water conservancy to geotechnological material, particularly can't overcome the rigidity of traditional material and the defective that toughness is difficult to take into account.For overcoming above-mentioned shortcoming, once adopted the chemical fibre woven geotextile, utilize polyester, continuous synthetic fibre etc. to have the material of high strength and high-weatherability, but raw material costliness, processing technology complexity, than great can't be accepted by users.The method that another one is traditional is with ordinary calcium carbonate the TPO raw material to be carried out modification, but aspects such as its intensity, toughness still can't satisfy the quality requirement of high standard foundation engineering.
Summary of the invention
The purpose of this utility model provides a kind of nano-material modified composite earthwork cloth, and this composite earthwork cloth had both kept original rigidity, and its toughness is improved, and also has the ability of ageing resistance by ultraviolet light simultaneously, and the P/C of product is than suitable.
The technical scheme that realizes the utility model purpose is: a kind of nano-material modified composite earthwork cloth, has the compound double-decker of acupuncture, one deck is a nonwoven layer, and another layer is the braided geotextile layer, and its tram and organizine all are nano-material modified TPO braided wires.
The related nano material of above-mentioned composite earthwork cloth is that surface treated, particle diameter is nano level calcium carbonate, and described TPO is a polypropylene.
The tram of the braided geotextile layer of above-mentioned composite earthwork cloth is thinner than organizine, being equal in weight of the two equal length.
Technique effect of the present utility model: nano-material modified composite earthwork cloth of the present utility model, the tram of braided geotextile layer wherein and organizine all are nano-material modified TPO braided wires.As nano material is that surface treated particle diameter is nano level calcium carbonate, not only its specific area is big, the surface atom proportion is big, there are a large amount of activated centres, and pass through surface treatment again, so, the calcium carbonate of this nanoscale particle diameter, still can be dispersed in the polymer and be easy to fully adsorb with polymer, bonding.When composite earthwork cloth of the present utility model is subjected to impacting, produce micro-crack between nanometer grade calcium carbonate particle and the polymer, the polymer between the particle also produces plastic deformation simultaneously, absorbs impact energy.Particle size is more little, and specific area is big more, and contact interface is also big more between particle and the polymer, and the micro-crack and the plastic deformation that produce when being hit like this also can be more, and the impact energy of absorption is also just many more, thereby the impact flexibility of composite earthwork cloth is increased greatly.In addition, because nanometer grade calcium carbonate can absorb ultraviolet light, therefore when composite earthwork cloth was sunlighted, wherein ultraviolet light was absorbed by calcium carbonate, and the ability of polypropylene ageing resistance by ultraviolet light is also improved.Composite earthwork cloth of the present utility model, the similar polypropylene woven geotextiles than using ordinary calcium carbonate can improve about 10～15% in the key technical indexes such as TENSILE STRENGTH, impact strengths.Because with non-woven fabric compounded, the P/C that makes composite earthwork cloth of the present utility model is relatively for suitable.
Description of drawings
Fig. 1 is the structural representation of the nano-material modified composite earthwork cloth of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing nano-material modified composite earthwork cloth of the present utility model is further described in detail.
As shown in Figure 1, nano-material modified composite earthwork cloth of the present utility model has the compound double-decker of acupuncture, and one deck is a nonwoven layer 1, and another layer is a braided geotextile layer 2, and its tram 3 and organizine 4 all are nano-material modified TPO braided wires.
Composite earthwork cloth of the present utility model, the organizine 4 of its braided geotextile layer 2, tram 3 all are to be that nano level calcium carbonate is as nano material with surface treated particle diameter, it is dispersed in the polypropylene, make the polypropylene agglomerate that contains nanometer grade calcium carbonate earlier, with the virgin pp master batch in about 1: 9 ratio agent blend granulation, the braided wires of on wire drawing machine, making with it again.The adding of this calcium carbonate has improved the TENSILE STRENGTH of braided wires greatly.And then improved the utility model composite earthwork cloth impact flexibility, improved the wriggling performance and kept original rigidity.Simultaneously also make composite earthwork cloth of the present utility model have good ageing resistance by ultraviolet light performance.
The tram 3 of the braided geotextile layer 2 of the utility model composite earthwork cloth is thinner than organizine 4, being equal in weight of the two equal length.Therefore, tram 3 is soft.Like this, not only reduce the loss of intensity in the weaving process, and kept the braided geotextile any surface finish.
The nonwoven layer 1 employed nonwoven fabric of the utility model composite earthwork cloth can be selected the polypropylene type nonwoven fabric of all size according to customer requirements for use.Adopt common needle-punching method with braided geotextile layer 2 compound.
Composite earthwork cloth of the present utility model can be used for mainly playing anti-filter, draining, isolation, reinforcing and strengthening action in the construction projects such as civil construction, water conservancy, railway, harbour, municipal administration, mining.In addition, also can be compound with other geotechnological materials such as french drain pipe, grid etc., further improve these properties of product such as impact flexibility, ageing resistance by ultraviolet light etc.
Claims (3)
1, a kind of nano-material modified composite earthwork cloth, have the compound double-decker of acupuncture, it is characterized in that, one deck is nonwoven layer (1), another layer is braided geotextile layer (2), and its tram (3) and organizine (4) all are nano-material modified TPO braided wires.
2, composite earthwork cloth according to claim 1 is characterized in that, described nano material is that surface treated, particle diameter is nano level calcium carbonate, and described TPO is a polypropylene.
3, composite earthwork cloth according to claim 1 is characterized in that, the tram (3) of braided geotextile layer (2) is thinner than organizine (4), being equal in weight of the two equal length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218333 CN2532099Y (en) | 2002-01-11 | 2002-01-11 | Nano material modified geotextile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218333 CN2532099Y (en) | 2002-01-11 | 2002-01-11 | Nano material modified geotextile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2532099Y true CN2532099Y (en) | 2003-01-22 |
Family
ID=33697000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218333 Expired - Lifetime CN2532099Y (en) | 2002-01-11 | 2002-01-11 | Nano material modified geotextile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2532099Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944008B (en) * | 2006-10-24 | 2011-03-09 | 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 |
| CN102965850A (en) * | 2012-11-18 | 2013-03-13 | 大连恒大高新材料开发有限公司 | Polypropylene fiber spunbond needle-punched geotextile |
| CN106906710A (en) * | 2017-03-06 | 2017-06-30 | 东华大学 | A kind of preparation method of pp geo textiles/GSZ composite geotextile material |
| CN108085967A (en) * | 2017-12-19 | 2018-05-29 | 南通大学 | A kind of Nano-meter CaCO33The preparation method of the anti-aging geotextiles of modified polypropene |
-
2002
- 2002-01-11 CN CN 02218333 patent/CN2532099Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944008B (en) * | 2006-10-24 | 2011-03-09 | 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 |
| CN102965850A (en) * | 2012-11-18 | 2013-03-13 | 大连恒大高新材料开发有限公司 | Polypropylene fiber spunbond needle-punched geotextile |
| CN106906710A (en) * | 2017-03-06 | 2017-06-30 | 东华大学 | A kind of preparation method of pp geo textiles/GSZ composite geotextile material |
| CN108085967A (en) * | 2017-12-19 | 2018-05-29 | 南通大学 | A kind of Nano-meter CaCO33The preparation method of the anti-aging geotextiles of modified polypropene |
| CN108085967B (en) * | 2017-12-19 | 2019-12-31 | 南通大学 | Nano CaCO3Preparation method of modified polypropylene anti-aging geotextile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120111 Granted publication date: 20030122 |