CN101285544B - P-aramid air-duct and uses thereof, and uses of p-aramid in air-duct - Google Patents
P-aramid air-duct and uses thereof, and uses of p-aramid in air-duct Download PDFInfo
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- CN101285544B CN101285544B CN200710097134XA CN200710097134A CN101285544B CN 101285544 B CN101285544 B CN 101285544B CN 200710097134X A CN200710097134X A CN 200710097134XA CN 200710097134 A CN200710097134 A CN 200710097134A CN 101285544 B CN101285544 B CN 101285544B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
- F16L11/125—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting non-inflammable or heat-resistant hoses
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/02—Hoses, i.e. flexible pipes made of fibres or threads, e.g. of textile which may or may not be impregnated, or provided with an impermeable layer, e.g. fire-hoses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0218—Flexible soft ducts, e.g. ducts made of permeable textiles
Abstract
The invention provides a ventiduct which comprises a fabric layer containing contraposition aramid fiber, and a polymer layer or a polymer blend layer which is coated inside and/or outside the fabric layer. The ventiduct has high tensile-strength, peeling strength, flexibility and flame retardance at the same time, and has excellent tolerance to explosion, and can be well applied to an explosive mining region. The invention also relates to an application for the ventiduct in a place where easily happens a blasting or an explosion, and an application of the contraposition aramid fiber in the ventiduct.
Description
Technical field
The present invention relates to the application of para-aramid.More particularly, relate to the ventilation duct and the application thereof that comprise para-aramid, and the application of para-aramid in ventilation duct.
Background technique
Ventilation duct is generally used for exchanging away so that ozone is introduced in the working zone and with waste gas in mine or other zone, and described waste gas can be that air and some are inflammable, the mixture of explosive and poisonous gas.In explosive mining, ventilation duct places the front of detonation point, to dilute inflammable, explosive and poisonous gas apace with ozone.Therefore, the material requirements of ventilation duct has anti-explosivity, impact resistance, cutting resistance and flame retarding, so that accident is minimized.
The conventional ventilation duct that is used for explosive mine uses glass fibre, polyester fibre, polyvinyl alcohol (vinylon) fiber etc. as strengthening framework material.Glass fibre has higher draw tensile strength, but the tear strength of its fabric is relatively poor.Organic fiber such as polyester fibre, vinylon fiber are very pliable and tough, but their tensile strength is not high, and not fire-retardant.Therefore, the life-span of the material that is used for ventilation duct of these routines is very short, so the danger that has an accident is very high.
Up to now, do not produce as yet in the prior art and have very high tensile strength, tear strength, pliability and flame retarding simultaneously, the ventilation duct that blast impulse is had good tolerability.
Therefore, related domain presses for and develops a kind of have simultaneously very high tensile strength, tear strength, pliability and flame retarding, the ventilation duct that blast impulse is had good tolerability.
Summary of the invention
Purpose of the present invention just provides a kind of have simultaneously very high tensile strength, tear strength, pliability and flame retarding, and to the ventilation duct that blast impulse has good tolerability, this ventilation duct can be advantageously applied in the explosive mining region.
On the one hand, the invention provides a kind of ventilation duct, it comprises:
The fabric layer that comprises the para-aramid fiber; And
Be coated in inner and/or outside polymer or the blend polymer layer of described fabric layer.
One preferred embodiment in, described para-aramid is selected from copolymer, the poly(p-benzamide) of poly terephthalic acid p-phenylenediamine (PPD) (that is PPTA), poly terephthalic acid p-phenylenediamine (PPD), copolymer, polysulfonamides, the copolymer of polysulfonamides and their mixture of poly(p-benzamide).
Another preferred embodiment in, described polymer comprises: PVC, chlorinated polynvinyl chloride (CPVC), haloflex, neoprene, ethylene propylene rubber, ethylene propylene diene rubber, nitrile butadiene rubber, natural rubber, styrene butadiene rubber, epichlorohydrin rubber, chlorosulfonated polyethylene, fluorine rubber, silicone rubber, butyl rubber, halogenated butyl rubber, polyurethane, polyethylene, polypropylene, epoxy resin, phenolic resin etc. and their mixture; Described blend polymer comprises described polymer and the blend that is selected from down at least a material of organizing: solvent, plasticizing agent, bulking agent, fire retardant, vulcanzing agent, age resister, vulcanizing accelerator, antioxidant, reinforced modifier, plasticized modifier, anti-coke agent, ultraviolet light stabilizer, anti-static agent, thixotropic agent, heat stabilizer and oiling agent.
Another preferred embodiment in, at least one weaving direction in the described fabric layer is made of 100% para-aramid fiber, perhaps the hybrid yams by 5-100% para-aramid fiber and other fiber of 0-95% constitutes, wherein, described other fiber comprises: glass fibre, polyester fibre, polyamide fiber, polyvinyl alcohol fiber, cotton fiber, vinylon fiber, rayon fiber, viscose, spandex fibre, polyvinyl chloride fibre fiber, acrylic fiber, basalt fibre, the para-aramid short fibre, polyester staple fiber, polyamide short fibre, the polyvinyl alcohol short fibre, staple glass fibre, rayon short fibre's dimension, the vinylon short fibre, viscose staple fiber, the spandex short fibre, the polyvinyl chloride fibre short fibre, acrylic staple fibre, and their mixture.
Another preferred embodiment in, described 100% para-aramid fiber or hybrid yams be twisting or do not twist; The 100% para-aramid fiber of described twisting or the twist coefficient of hybrid yams are 0-25, and wherein, twist coefficient is defined as follows:
In the formula, the DENIER number is meant per 9000 meters quality of fiber, in gram.
Another preferred embodiment in, the warp-wise of described fabric layer and weft tensile strength are greater than 3000N/50mm.
Another preferred embodiment in, the bonding strength between described fabric layer and polymer or the blend polymer layer is greater than 20N/25mm.
On the other hand, the present invention relates to the application of above-mentioned ventilation duct in being easy to take place the place of explosion or blast.
One preferred embodiment in, the place of described generation explosion or blast is mine or tunnel.
On the one hand, the present invention relates to the application of para-aramid fiber in ventilation duct again.
Description of drawings
Fig. 1 is the sectional view of ventilation duct structure that is coated in the outside of the fabric layer that comprises the para-aramid fiber according to the polymer of one embodiment of the present invention or blend polymer layer.
Fig. 2 is the sectional view of the ventilation duct structure of the polymer of another mode of execution according to the present invention or the inside that the blend polymer layer is coated in the fabric layer that comprises the para-aramid fiber.
Fig. 3 is the sectional view of the polymer of another mode of execution according to the present invention or outside that the blend polymer layer is coated in the fabric layer that comprises the para-aramid fiber and inner ventilation duct structure.
It will be appreciated by those skilled in the art that size shown in Fig. 1-3 and ratio do not represent actual size and ratio.
Embodiment
The present inventor finds that after having carried out extensive and deep research the para-aramid fiber is the very high organic fiber of intensity, and itself has flame retarding, and limited oxygen index is 29, has good self-extinguish ability after taking out from fire; Its fabric has pliability, all has very high intensity at warp-wise and broadwise, comprises tensile strength and tear strength; So it is very suitable for the enhancing framework material that acts on the ventilation duct in the explosive mine; Compare with glass fibre, vinylon fiber or the polyester fibre product of routine, can significantly improve blast or the underground environment of explosion in Security.Based on above-mentioned discovery, the present invention is accomplished.
In a first aspect of the present invention, a kind of ventilation duct is provided, described ventilation duct comprises: the fabric layer that comprises the para-aramid fiber; And be coated in inner and/or outside polymer or the blend polymer layer of described fabric layer.
In the present invention, para-aramid is meant " para-aramid " fiber that defines among the ISO2076, promptly, the linear polymer that the aromatic group that is connected by amido link or imide bond is formed, wherein at least 85% amido link or imide bond directly are connected with aromatic rings, for example contain imide bond, its number is no more than amido link.
The para-aramid that can be used among the present invention has no particular limits, and can be conventional para-aramid, and its representational example includes, but are not limited to: the poly terephthalic acid p-phenylenediamine (PPD), for example
, Twaron, Heracron, Terlon and Tervar and analog thereof; The copolymer of poly terephthalic acid p-phenylenediamine (PPD), for example Technora, SVM, Armos and Rusar and analog thereof; Poly(p-benzamide); The copolymer of poly(p-benzamide); The copolymer of polysulfonamides, polysulfonamides and their mixture.
The para-aramid that can be used among the present invention can comprise the material of being made up of the structure shown in the following molecular formula, but is not limited only to these concrete examples:
Or
In the formula, m and n represent the number of said structure unit in this molecular chain, or claim the degree of polymerization, and the numerical value of m and n is had no particular limits, and can be 0,1,2 or other integer.
In an embodiment of the invention, the fabric layer of described para-aramid fiber can be the seamless air duct of continuous weaving, and also can be has the seam air duct by fabric through what sew up.
The polymer that can be used for being used among the present invention apply has no particular limits, it can be related domain polymer commonly used, its representational example includes, but are not limited to: PVC, chlorinated polynvinyl chloride (CPVC), haloflex, neoprene, ethylene propylene rubber, ethylene propylene diene rubber, nitrile butadiene rubber, natural rubber, styrene butadiene rubber, epichlorohydrin rubber, chlorosulfonated polyethylene, fluorine rubber, silicone rubber, butyl rubber, halogenated butyl rubber, polyurethane, polyethylene, polypropylene, epoxy resin, phenolic resin and their mixture; The blend of described polymer can comprise described polymer and the copolymer that is selected from down at least a conventional substances of organizing: solvent, plasticizing agent, bulking agent, fire retardant, vulcanzing agent, age resister, vulcanizing accelerator, antioxidant, reinforced modifier, plasticized modifier, anti-coke agent, ultraviolet light stabilizer, anti-static agent, thixotropic agent, heat stabilizer and oiling agent.
In the present invention, described polymer or blend polymer layer can be coated in the inside and/or the outside of described fabric layer by the painting method of related domain routine, and described painting method includes, but are not limited to: dipping, brushing and calendering.
The coating thickness of polymer on fabric layer that can be used for being used among the present invention apply has no particular limits.
In yet another embodiment of the present invention, described ventilation duct can also comprise a coating.
In yet another embodiment of the present invention, the weaving and the mode of described fabric layer have no particular limits, and can be related domain any weavings commonly used, as knitting, tatting etc.
In yet another embodiment of the present invention, the structure of described fabric layer has no particular limits, it can be related domain any structure commonly used, as plain weave, satin weave, twill, cross twill, basket, Oxford, multi-axial fabric, straight through straight latitude, whole cored structure etc. and their any alternative construction.
In yet another embodiment of the present invention, the structure of described fabric layer as the density of warp-wise and broadwise, also is the yarn radical in the unit width in the density of different direction, have no particular limits, and can be identical, also can be different.
In yet another embodiment of the present invention, the single thread diameter of the fiber of described formation fabric layer different direction as the single thread diameter of warp fiber and the single thread diameter of weft fiber, has no particular limits, and can be identical, also can be different.
In yet another embodiment of the present invention, described fabric layer has a weaving direction at least, as warp-wise or broadwise, can constitute by 100% para-aramid fiber, perhaps can (be preferably 20-100% by 5-100%, 50-100% more preferably) para-aramid fiber and 0-95% (are preferably 0-80%, 0-50% more preferably) hybrid yams of other fiber constitutes, wherein, described other fiber can include, but are not limited to: glass fibre, polyester fibre, polyamide fiber, polyvinyl alcohol fiber, cotton fiber, vinylon fiber, rayon fiber, viscose, spandex fibre, polyvinyl chloride fibre fiber, acrylic fiber, basalt fibre, the para-aramid short fibre, polyester staple fiber, polyamide short fibre, the polyvinyl alcohol short fibre, staple glass fibre, rayon short fibre's dimension, the vinylon short fibre, viscose staple fiber, the spandex short fibre, the polyvinyl chloride fibre short fibre, acrylic staple fibre, and their mixture.
In yet another embodiment of the present invention, described 100% para-aramid fiber or hybrid yams can be twisting or untwisted; The 100% para-aramid fiber of described twisting or the twist coefficient of hybrid yams are 0-25, are preferably 0-10, and more preferably 0-5 most preferably is 0-3, and wherein, twist coefficient is defined as follows:
In the formula, the DENIER number is per 9000 meters quality of fiber, in gram.Described twist coefficient also any other computational methods of available suitable related domain is calculated.
In yet another embodiment of the present invention, the warp-wise of described fabric layer and weft tensile strength are greater than 3000N/50mm, preferably greater than 4000N/50mm, more preferably greater than 5000N/50mm.
In yet another embodiment of the present invention, the bonding strength between described fabric layer and polymer or the blend polymer layer is greater than 20N/25mm, preferably greater than 25N/25mm, more preferably greater than 30N/25mm.
Below referring to accompanying drawing.
As shown in Figure 1, according to the ventilation duct structure of an embodiment of the invention, polymer or blend polymer layer 20 are coated in the outside of fabric layer 10.
As shown in Figure 2, ventilation duct structure according to another implementation of the invention, polymer or blend polymer layer 20 are coated in the inside of fabric layer 10.
As shown in Figure 3, ventilation duct structure according to another mode of execution of the present invention, polymer or blend polymer layer 20 are coated in the outside and inner of fabric layer 10 respectively, and wherein, it can be identical or different being coated in inside and outside polymer or blend polymer layer respectively.
In a second aspect of the present invention, relate to the application of above-mentioned ventilation duct in being easy to take place the place of explosion or blast.
In an embodiment of the invention, the place of described generation explosion or blast can be mine or tunnel.
In a third aspect of the present invention, relate to the application of para-aramid fiber in ventilation duct.
Major advantage of the present invention is:
Ventilation duct of the present invention has very high tensile strength, tear strength, pliability and flame retarding simultaneously, and blast impulse is had good tolerability, can be advantageously applied in the explosive mining region.
Further set forth the present invention below in conjunction with specific embodiment.But, should be understood that these embodiments only are used to the present invention is described and do not constitute limitation of the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.Except as otherwise noted, all percentage and umber are by weight.
Embodiment
Embodiment 1-6:
The tensile strength test (testing standard: the HG/T2580-1994 among the MT383-1995 (replacing GB5572),
Be equal to ISO1421)
Fabric layer in the ventilation duct (ventilation duct cloth) is cut into the wide cloth of 50mm along warp-wise and broadwise respectively, exists then
Cupping machine (available from Instron company, Norwood, MA carries out tension test on USA), the maximum, force value that needs when cupping machine writes down rupture failure automatically.
Tear strength test (testing standard: ASTM D5587)
Fabric layer in the ventilation duct (ventilation duct cloth) is cut into the wide cloth of 150mm * 75mm along warp-wise and broadwise respectively, then in the middle of the long limit of 150mm along the prefabricated breach of direction perpendicular to long limit.Follow sample holder on cupping machine, the breach direction is parallel to substantially horizontal, and breach is clipped in the anchor clamps at two ends up and down, starts cupping machine then and tears experiment.The maximum, force value that stretches and need when writing down rupture failure automatically.
Test result among the embodiment 1-6 has been shown in the following table 1.
Table 1
In tearing test, because of
The tear strength of cloth is too high, and cloth specimen can't be torn, but fiber is released from cloth.So can only be with greater than the powerful value representation that measures.
The tensile strength data of cloth specimen before applying has been shown in the last table 1.From last table 1, can find out significantly, under the approaching situation of weight per unit area (embodiment 1 and embodiment's 3 contrasts, and embodiment 2 and embodiment's 5 contrasts),
The tensile strength of ventilation duct cloth is far longer than conventional glass cloth and the cotton intensity of weaving cotton cloth of mixing of glass.If improve
Weight per unit area, can improve its tensile strength.For example, embodiment 4
The weight per unit area of cloth B only is embodiment 1 about 2.2 times of pure glass fiber cloth, but its tensile strength is high nearly 9 times.This shows and is reaching under the situation of same intensity, uses
Can alleviate the weight of ventilation duct product greatly; Perhaps, under the situation of same weight,
The ventilation duct product can be realized very high strength grade.
Embodiment 7-12:
Embodiment 7-12 has measured the performance of sample after applying among the embodiment 1-6.Coating procedure is: cloth specimen is divided, Welvic is poured on an end of cloth specimen, then with the hand coatings machine of control thickness with the surface of Welvic blade coating at cloth specimen.Then this sample being put into 168 ℃ baking oven plasticizing took out after 7 minutes.The cloth that applied is cut into required tensile sample and tears sample and test.
Test result among the embodiment 7-12 has been shown in the following table 2.
Table 2
In tearing test, because of
The tear strength of cloth B is too high, and cloth specimen can't be torn, but fiber is released from cloth.So can only be with greater than the powerful value representation that measures.
From last table 2 as can be seen, under the approaching situation of grey cloth weight per unit area, coating
The warp-wise of cloth and weft tensile strength and tear strength are higher than glass fiber cloth and the cotton intensity of weaving cotton cloth of mixing of glass far away.
Embodiment 13:
Bond strength test (testing standard: the HG/T3052 (generation among the MT383-1995 with the Welvic coating
For GB10720), be equal to ISO2411)
With the fabric in the ventilation duct (
Cloth) after layer applies with PVC, fit unvulcanized nitrile butadiene rubber on coated side, then 165 ℃ of sulfurations down.Then, from vulcanizing the sample that sample cuts wide 25mm, broad ways is carefully cut the coating layer that is between fabric and the nitrile butadiene rubber, exists then
An end is clamped rubber on the cupping machine, and an end is clamped fabric and peeled off.PVC and nitrile butadiene rubber have good compatibility, therefore produce peeling off between fabric and the PVC coating layer generally speaking.The tension test chance writes down the peeling strength of generation automatically, also is bonding strength.
Test result among the embodiment 13 has been shown in the following table 3.
Table 3
From last table 2 as can be seen,
The bonding strength of cloth and pvc coating is higher than the primes standard of industry standard defined.
Though for the purpose that is aware and understand, the present invention is described in detail, but after having read present specification, those skilled in the art will be appreciated that, under the prerequisite that does not depart from spirit of the present invention and essence, can carry out various modifications and change to the present invention, these modifications and change all fall within the included scope of appended claims and content of equal value thereof.
Claims (10)
1. ventilation duct, it comprises:
The fabric layer that comprises the para-aramid fiber; And
Be coated in inner and/or outside polymer or the blend polymer layer of described fabric layer.
2. ventilation duct as claimed in claim 1, it is characterized in that described para-aramid is selected from copolymer, the poly(p-benzamide) of poly terephthalic acid p-phenylenediamine (PPD), poly terephthalic acid p-phenylenediamine (PPD), copolymer, polysulfonamides, the copolymer of polysulfonamides and their mixture of poly(p-benzamide).
3. ventilation duct as claimed in claim 1 or 2, it is characterized in that described polymer comprises: PVC, chlorinated polynvinyl chloride (CPVC), haloflex, neoprene, ethylene propylene rubber, ethylene propylene diene rubber, nitrile butadiene rubber, natural rubber, styrene butadiene rubber, epichlorohydrin rubber, chlorosulfonated polyethylene, fluorine rubber, silicone rubber, butyl rubber, halogenated butyl rubber, polyurethane, polyethylene, polypropylene, epoxy resin, phenolic resin and their mixture; Described blend polymer comprises described polymer and the blend that is selected from down at least a material of organizing: solvent, plasticizing agent, bulking agent, fire retardant, vulcanzing agent, age resister, vulcanizing accelerator, antioxidant, reinforced modifier, plasticized modifier, anti-coke agent, ultraviolet light stabilizer, anti-static agent, thixotropic agent, heat stabilizer and oiling agent.
4. ventilation duct as claimed in claim 1, it is characterized in that, at least one weaving direction in the described fabric layer is made of 100% para-aramid fiber, perhaps the hybrid yams by 5-100% para-aramid fiber and other fiber of 0-95% constitutes, wherein, described other fiber comprises: glass fibre, polyester fibre, polyamide fiber, polyvinyl alcohol fiber, cotton fiber, vinylon fiber, rayon fiber, viscose, spandex fibre, polyvinyl chloride fibre fiber, acrylic fiber, basalt fibre and their mixture.
5. ventilation duct as claimed in claim 1, it is characterized in that, at least one weaving direction in the described fabric layer is made of 100% para-aramid fiber, perhaps the hybrid yams by 5-100% para-aramid fiber and other fiber of 0-95% constitutes, wherein, described other fiber comprises: the para-aramid short fibre, polyester staple fiber, polyamide short fibre, the polyvinyl alcohol short fibre, staple glass fibre, rayon short fibre's dimension, the vinylon short fibre, viscose staple fiber, the spandex short fibre, the polyvinyl chloride fibre short fibre, acrylic staple fibre, and their mixture.
6. as claim 4 or 5 described ventilation ducts, it is characterized in that, described 100% para-aramid fiber or hybrid yams be twisting or do not twist; The 100% para-aramid fiber of described twisting or the twist coefficient of hybrid yams are 0-25, and wherein, twist coefficient is defined as follows:
In the formula, the DENIER number is meant per 9000 meters quality of fiber, in gram.
7. ventilation duct as claimed in claim 1 is characterized in that the warp-wise of described fabric layer and weft tensile strength are greater than 3000N/50mm.
8. ventilation duct as claimed in claim 1 is characterized in that, the bonding strength between described fabric layer and polymer or the blend polymer layer is greater than 20N/25mm.
9. the application of the ventilation duct of claim 1 in being easy to take place the place of explosion or blast.
10. application as claimed in claim 9 is characterized in that, the place of described generation explosion or blast is mine or tunnel.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710097134XA CN101285544B (en) | 2007-04-12 | 2007-04-12 | P-aramid air-duct and uses thereof, and uses of p-aramid in air-duct |
| BRPI0808603-6A BRPI0808603A2 (en) | 2007-04-12 | 2008-04-10 | "VENTILATION AND APPLICATION Duct" |
| CA002682270A CA2682270A1 (en) | 2007-04-12 | 2008-04-10 | A p-aromatic polyamide vent duct and its application, and application of p-aromatic polyamide to the vent duct |
| PCT/CN2008/070695 WO2008125053A1 (en) | 2007-04-12 | 2008-04-10 | Para-aramid ventilation pipe |
| AU2008238466A AU2008238466A1 (en) | 2007-04-12 | 2008-04-10 | Para-aramid ventilation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710097134XA CN101285544B (en) | 2007-04-12 | 2007-04-12 | P-aramid air-duct and uses thereof, and uses of p-aramid in air-duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101285544A CN101285544A (en) | 2008-10-15 |
| CN101285544B true CN101285544B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710097134XA Active CN101285544B (en) | 2007-04-12 | 2007-04-12 | P-aramid air-duct and uses thereof, and uses of p-aramid in air-duct |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN101285544B (en) |
| AU (1) | AU2008238466A1 (en) |
| BR (1) | BRPI0808603A2 (en) |
| CA (1) | CA2682270A1 (en) |
| WO (1) | WO2008125053A1 (en) |
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| CN101886548B (en) * | 2010-07-28 | 2012-05-30 | 淮南润成科技股份有限公司 | Polyurethane composite material hair dryer and manufacturing method thereof |
| CN102644473B (en) * | 2012-04-06 | 2014-12-31 | 贵州开磷（集团）有限责任公司 | Light plastic-woven inner sticking film air duct |
| EP2935960A1 (en) * | 2012-12-19 | 2015-10-28 | UTC Fire & Security Americas Corporation, Inc. | Flexible conduit for use in a fire suppression system |
| CN103709562A (en) * | 2013-12-06 | 2014-04-09 | 苏州华东橡胶工业有限公司 | Steam rubber hose |
| CN103665892A (en) * | 2013-12-13 | 2014-03-26 | 苏州华东橡胶工业有限公司 | Heat-resistant and oil-resistant rubber pipe |
| CA2967475A1 (en) | 2014-11-13 | 2016-05-19 | Orica International Pte Ltd | Conveying of emulsion explosive |
| CN105415833B (en) * | 2015-12-24 | 2017-08-22 | 浙江明士达新材料有限公司 | Anti-static wearable ventilation shaft connects composite |
| CN105483890A (en) * | 2016-01-21 | 2016-04-13 | 常熟市宝沣特种纤维有限公司 | Multifunctional inherent-flame-retardant viscose blended yarn, fabric and yarn preparation method |
| CN105926113A (en) * | 2016-06-27 | 2016-09-07 | 吴江耀迪纺织品有限公司 | Far infrared flame-retardant textile air duct |
| CN106637919A (en) * | 2016-11-30 | 2017-05-10 | 安徽惠尔矿用设备有限公司 | Mining coated cloth with high surface resistance stability |
| CN108662308A (en) * | 2018-04-28 | 2018-10-16 | 浙江峻和橡胶科技有限公司 | A kind of compound oil gas rubber pipe and its manufacturing method |
| IT201900000322A1 (en) * | 2019-01-10 | 2020-07-10 | Gianni Girardello | AERAULIC CHANNELS MADE WITH FIREPROOF TECHNICAL FABRIC |
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| FR2697613A1 (en) * | 1992-11-03 | 1994-05-06 | Lhotellier Montrichard Sa | Gas floe duct - made from two concentric layers of woven organic mineral material with space between filled with sound-absorbing substance |
| FR2764678A1 (en) * | 1997-06-17 | 1998-12-18 | Lmca Les Materiaux Composites | Supple heating panel used e.g. for deicing aircraft control surfaces or heating vehicle seats etc. |
| CN1676548A (en) * | 2004-04-01 | 2005-10-05 | 中国科学院化学研究所 | Short-fiber reinforced polyimide composite material, and its preparing method and use |
| GB2421786A (en) * | 2004-12-29 | 2006-07-05 | Limited Wellman Defence | Textile ducts for air circulation systems |
| EP1741993A1 (en) * | 2005-07-09 | 2007-01-10 | Deere & Company | Housing of air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7523765B2 (en) * | 2004-02-27 | 2009-04-28 | Fiberspar Corporation | Fiber reinforced spoolable pipe |
-
2007
- 2007-04-12 CN CN200710097134XA patent/CN101285544B/en active Active
-
2008
- 2008-04-10 AU AU2008238466A patent/AU2008238466A1/en not_active Abandoned
- 2008-04-10 BR BRPI0808603-6A patent/BRPI0808603A2/en not_active IP Right Cessation
- 2008-04-10 CA CA002682270A patent/CA2682270A1/en not_active Abandoned
- 2008-04-10 WO PCT/CN2008/070695 patent/WO2008125053A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2697613A1 (en) * | 1992-11-03 | 1994-05-06 | Lhotellier Montrichard Sa | Gas floe duct - made from two concentric layers of woven organic mineral material with space between filled with sound-absorbing substance |
| FR2764678A1 (en) * | 1997-06-17 | 1998-12-18 | Lmca Les Materiaux Composites | Supple heating panel used e.g. for deicing aircraft control surfaces or heating vehicle seats etc. |
| CN1676548A (en) * | 2004-04-01 | 2005-10-05 | 中国科学院化学研究所 | Short-fiber reinforced polyimide composite material, and its preparing method and use |
| GB2421786A (en) * | 2004-12-29 | 2006-07-05 | Limited Wellman Defence | Textile ducts for air circulation systems |
| EP1741993A1 (en) * | 2005-07-09 | 2007-01-10 | Deere & Company | Housing of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008125053A1 (en) | 2008-10-23 |
| BRPI0808603A2 (en) | 2014-08-05 |
| AU2008238466A1 (en) | 2008-10-23 |
| CA2682270A1 (en) | 2008-10-23 |
| CN101285544A (en) | 2008-10-15 |
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