CN104727152A - Fabric capable of continuously storing gas under pressure and manufacturing method and application of fabric - Google Patents
Fabric capable of continuously storing gas under pressure and manufacturing method and application of fabric Download PDFInfo
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- CN104727152A CN104727152A CN201510072450.6A CN201510072450A CN104727152A CN 104727152 A CN104727152 A CN 104727152A CN 201510072450 A CN201510072450 A CN 201510072450A CN 104727152 A CN104727152 A CN 104727152A
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Abstract
The invention discloses a fabric capable of continuously storing gas under pressure and a manufacturing method and application of the fabric. The fabric contains at least two layers of siloxane elastomer, wherein the first layer of siloxane elastomer is directly spread to a fabric body and has the breaking elongation of 400%-1,000%; and the second layer of siloxane elastomer has the tearing strength of 30-60kN/m. The fabric capable of continuously storing gas under pressure can be made into an airbag and an automobile airbag, which can store gas under pressure for a certain time. The fabric provided by the invention is simple in preparation technology and has a huge application valve, and agents are easily available.
Description
Technical field
The present invention relates to a kind of fabric of sustainable stored-gas under stress, the invention still further relates to a kind of manufacture method and application of the fabric of sustainable stored-gas under stress.
Background technology
Known with the textile fabric of the coating composition based on siloxanes.These compositions can give the cated fabric of this tool various advantage.In European patent EP 553840, such as describe a kind of liquid silicone rubber coating composition of the inflatable safety bag for automobile, certain polydiorganosiloxanepolyurea that wherein there is alkenyl containing a kind of, polysiloxane resin, inorganic filler, certain poly-Organhydridosiloxaneresins, platinum metal catalysts and the organo-silicon compound containing epoxy radicals.The impregnated fabric of one silicone composition is described, containing the adhesion promotor that there is aliphatic series certain linear polysiloxane undersaturated, certain poly-Organhydridosiloxaneresins, the catalyst of promotion addition reaction, hydrophobic silica, fire retardant and selectively add in this silicone composition in European patent EP 646672.Advise the composition of this fabric to be applied in the description of a rear patent and manufacture inflatable safety bag.Application siloxanes coating composition is weatherability, the maintenance aspect such as pliability and heat resistance of the raising of such as silicone composition than the advantage of other composition of application as organic coating composition.
Although the fabric coating with this kind of composition can meet the use of inflatable safety bag, they can not meet the needs when the liquid with pressure remains relatively long-time in fabric airbag.This needs are had when such as inflatable safety bag (side curtain airbags) being shielded in the side of this coatings applications in auto industry.This side screen inflatable safety bag is the same as with common inflatable safety bag expanding when impacting.This side screen launches to be formed in passenger and body of a motor car sidewall as the damping screen between vehicle window.Due to the not only buffering when self collides for normal driver and passenger's inflatable safety bag, but such as protect passenger when automobile rolls, the importantly pressurization fully of this side screen inflatable safety bag in this kind of rolling situation.Normal driver and passenger's inflatable safety bag only need to keep pressure part second, and wish that this kind of side screen inflatable safety bag can maintain applicable pressure a few second.Application in the urgent slideway of such as aircraft and inflatable buoyancy tank etc. that similar is, wishes the time that the fabric construction compressed can remain relatively long under certain fluid pressure in such cases.
We find that the combination of certain siloxy group coating composition can provide these advantages.More specifically, we find to be coated with the coating composition of multilayer based on siloxanes, wherein containing at least two layers of coatings with different qualities, highly beneficial for achieving the above object.
Apply known based on the coating of siloxanes more than one deck, and it is open in US Patent No. 4587159, which describe a kind of transparent or translucent silicone-coated glass fabric, comprise ground floor polydiorganosiloxanepolyurea, organo-functional group is wherein the ratio of methyl and phenyl functional group is 0.25 to 3.7, this layer of coating dipping and apply this glass fabric yarn but do not fill the gap of this glass fabric; Second layer silicone elastomer covers ground floor and is filled in the gap of this glass fabric; And third layer elastoplasticity polysiloxane resin is for providing level and smooth, a dry surface.Be in transparent or semitransparent state according to the cated glass fabric of the tool of this invention and can be used for building the roof structure of such as air bearing and pulling force supporting structure such as greenhouse and solar energy heating building.But this kind of material is unsuitable for the coating being used as side screen inflatable safety bag.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of fabric of sustainable stored-gas under stress and manufacture method thereof and application.
A kind of fabric of sustainable stored-gas under stress, containing a kind of textile fabric with at least two-layer elastomeric material based on polysiloxane, the ground floor be coated on this fabric has the elongation at break of 400%-1000% and the second layer has the tearing strength of 30-60kN/m.
This textile fabric is that the mixture of synthetic fiber or natural fabric and synthetic fiber makes ground, and be selected from polyester, polyimides, polyethylene, polypropylene, polyester-cotton, glass fibre, most preferred is that polyamide fiber is as nylon66 fiber.They need to have pliability to use as expandable bodies.Preferably there is enough pliabilities make it to be folded into relatively little volume, but also should have enough intensity to stand to launch at a high speed, the such as shock of passenger or other impact under the impact of burst inflation and when expanding.
A kind of manufacture method of the fabric of sustainable stored-gas under stress, the method to comprise to a kind of formation elastomer compositions based on polysiloxane of this textile fabric coating as ground floor and a kind of formation elastomer compositions based on polysiloxane of coating as the second layer, and make these first and second layers to solidify to form a kind of elastic coating on this fabric, this ground floor forms a kind of elastomeric material with at least 400% elongation at break when solidifying, and this second layer forms a kind of elastomeric material with at least 30kN/m tearing strength when solidifying.The formation elastomeric organosiloxane system be applicable to comprises at least one siloxane polymer and a kind of organosilicon cross-linking agent.Useful siloxane polymeric unit has general formula R aR ' bSiO4-a-b/2 (I), wherein R has the monovalent hydrocarbon being no more than 16 carbon atoms, R ' is alkyl or oxyl, hydrogen atom or the hydroxyl of monovalence, a and b is that the summation of 0 to 3, a+b is for being no more than 3.
In the formation elastomer compositions be suitable for, other addible components can comprise filler, cahin extension agent, dyestuff, adhesion promotor, colouring agent, pigment, viscosity modifier, Bath life growing agent, inhibitor and flexibilizer.The filler be applicable to comprises the silica gel of silica such as fumed silica, precipitated silica, gelling silica, high dispersive, titanium dioxide, flint, the curing silicone rubber grain of powdery, calcium carbonate and glass microballoon.Preferably process to make its surface hydrophobicity to filler when needed, such as, carry out this process with the silane, short chain siloxane, aliphatic acid or the epoxy silicones material that are applicable to.
Preferred formation elastomer compositions is the organo-silicon compound based on being solidified by addition reaction.Particularly preferred composition contains a kind of polysiloxane, and it has the alkenyl of per molecule at least 2 silicon bondings, is preferably vinyl; The organo-silicon compound that organic hydrogen is crosslinked, a kind of catalyst based on the VIIIth race's element and a kind of filler.Not strict in the ratio forming these components in elastomer compositions, although preferred alkenyl official can organo-siloxanes polymer and the ratio of organosilicon cross-linking agent of the hydrogen atom with silicon bonding be guarantee the hydrogen atom of each alkenyl at least one silicon bonding, more preferably this ratio is 1.2/1-6/1, most preferably is 2/1-4/1.
Composition (A) for the formation of this ground floor comprising:
(a) 100 weight portion polysiloxane material, per molecule has the alkenyl of average two silicon bondings, is preferably alkenyl and is connected with each terminal silicon atom in molecule;
(b) a kind of organo-silicon compound, per molecule has at least three silicon bonded hydrogen atoms, and its value is enough to make the Si-H group in (b) be 1.2/1-6/1 with the mol ratio of the alkenyl in (a);
C the cahin extension agent of () 1-28 weight portion, comprises a kind of polysiloxane with two silicon bonded hydrogen atoms;
D (), based on the catalytic component of the VIIIth race's element, presents in an amount at least sufficient to catalysis one side for (a) and the opposing party is addition reaction between (b) and (c);
The dewatering filling of (e) 5-48 weight portion;
And comprising for the formation of this formation elastomer compositions (B) of the second layer:
(a) 100 polysiloxane material of weight portion, per molecule has the alkenyl of average two silicon bondings, is preferably alkenyl and is connected with each terminal silicon atom in molecule;
(b) a kind of organo-silicon compound, per molecule has at least three silicon bonded hydrogen atoms, and its value is enough to make the Si-H group in (b) be 1.2/1-6/1 with the mol ratio of the alkenyl in (a);
C the polysiloxane material of () 1-28 weight portion, have the alkenyl of the silicon bonding be connected with each terminal silicon atom in molecule, and at least one alkenyl is connected with the non-end silicon atom on this polysiloxane chain in addition;
D (), based on the catalytic component of the VIIIth race's element, presents in an amount at least sufficient to catalysis one side for (a) and the opposing party is addition reaction between (b) and (c);
(e) dewatering filling of 5-48 weight portion.
Polysiloxane (A) (a) and/or (B) (a) are a kind of polydiorganosiloxanepolyureas.
Organo-silicon compound (A) (b) and/or (B) (b) have general formula R
6r
5 2siO (R
5 2siO) p (R
5hSiO) qSiR
5 2r
6, wherein R
5representative has the alkyl or aryl being no more than 10 carbon atoms, R
6a R
5group or a hydrogen atom, the value of p is the value of 0-20, q is 1-70, and has at least three silicon bonded hydrogen atoms in per molecule.Preferably be enough to make the ratio of silicon bonded hydrogen atom number and alkene radix in composition be at least 1/1 for the linked (A) (b) of composition or the amount of (B) (b), namely stoichiometrically calculate.But, in order to ensure making composition completely crosslinked, be more preferably the SiH group that stoichiometry exceedes existence.Preferred SiH/ alkenyl, than being 1.2/1-6/1, is more preferably 2/1-4/1.
Component (A) (d) and (B) (d) are the addition reactions that catalyst is applicable to promote alkenyl and silicon bonded hydrogen atom.Therefore be applicable to catalyst be those based on noble metal, particularly based on those catalyst of group VIII metal (comprising ruthenium, rhodium, palladium, osmium, iridium and platinum).This catalyst is preferably known platinum compounds or complex.The platinum compounds be applicable to and complex comprise chloroplatinic acid, acetylacetone,2,4-pentanedione platinum, the sub-platinum of halogenation and unsaturated compound as ethene, propylene, organic vinyl radical siloxane and cinnamic complex, hexamethyl two platinum, PtCl
2, PtCl
3, PtCl
4with Pt (CN)
3.Preferred platinum catalyst is chloroplatinic acid type, and usually available is hexahydrate type or its anhydrous type, as described in US Patent No. 2823218.Another kind of useful especially catalyst be chloroplatinic acid and a kind of aliphatic unsaturated organosilicon compounds as when divinyl tetramethyl disiloxane reacts to each other the composition that obtains, disclosed in US Patent No. 3419593.The consumption being preferably catalyst (A) (d) or (B) (d) is the 2-100ppm that platinum accounts for composition total weight, is more preferably 5-55ppm.
Dewatering filling (A) (e) and (B) (e) are preferably a kind of reinforcer.The example of the filler be applicable to comprises silica, titanium dioxide, flint, calcium carbonate and alumino-silicate.Be preferably silica filler, most preferably be fumed silica filler, because they have best strengthening the property.The average particle size particle size of these fillers can be diameter is 0.1-20Tm, is preferably 0.2-6Tm, is more preferably 0.5-2.3Tm.
The surface of this filler particles has hydrophobicity to make this filler more compatible with composition used in the present invention.This filler particles can be given with hydrophobicity before or after being scattered in this silicone components by this filler particles.Can with aliphatic acid, active silane or active this filler particles of siloxanes preliminary treatment to give this filler particles with hydrophobicity.The example of water-repelling agent be suitable for comprises stearic acid, dimethyldichlorosilane, trim,ethylchlorosilane, HMDS, the dimethyl silicone polymer of hydroxy-end capped or methyl blocking, silicone resin or wherein two or more mixtures.Also can apply other water-repelling agents, but the above-mentioned material listed is the most effective.There are many commercial source with the filler that above-mentioned compound treatment is crossed.On the other hand, namely the surface of this filler can be endowed hydrophobicity in fillers dispersed on the spot after this silicone compositions.Can before this fillers dispersed, among or afterwards appropriate above-mentioned active silane or silicone-type water-repelling agent are joined in this polysiloxane component, and fully this mixture of heating makes it react, such as at least be heated to 40 DEG C of temperature, carry out this operation thus.The amount of water-repelling agent used depends on the character of such as this water-repelling agent and this filler, and this is apparent or confirmable for those skilled in the art.It is at least discernible hydrophobicity that enough water-repelling agents should be able to give this filler.
Component (A) (c) is a kind of polysiloxane with two diorganosiloxane units and hydrogenation two organosiloxane blocking units.Preferably there is the unit of two diorganosiloxane units and hydrogenation two organosiloxane end-blocking.Due to the characteristic of these polymer, they are used as cahin extension agent, join in the alkenyl of (A) (a) when solidifying.The viscosity of these polymer preferred is 4-120mPas at 25 DEG C of temperature.
Component (B) (c) is a kind of polysiloxane material, it has the silicon bonding alkenyl be connected with each terminal silicon atom in molecule, and at least one alkenyl is connected with the silicon atom of the non-end on this polysiloxane chain in addition.This kind of material is similar to above-mentioned this silicone compositions (B) (a).Except the alkenyl be connected with the siloxane unit of molecular end, the main distinction of this preferred material is that at least another alkenyl is connected with the silicon atom on siloxane chain.This polysiloxane preferred is the copolymer of dialkylsiloxane units and alkenyl alkyl siloxane unit, and by alkenyl dialkylsiloxane units end-blocking.This copolymer preferred is the dimethicone vinyl Methylpolysiloxane Copolymer that one has that per molecule is about the vinyldimethylsiloxane end-blocking of 1-5 (mole) % vinyl.The viscosity of most preferred copolymer (B) (c) is 140-680mPas at 25 DEG C of temperature.
Composition (A) and (B) are prepared by making each composition mix mutually with desired ratio.But, due to consider composition is used for this textile fabric before or among storage stability and the reason of Bath life (bath life), preferably often kind of composition is divided into two parts, separates by catalyst (d) and Si-H functional substance (that is: (A) (b), (A) (c) and (B) (c)).Other components in said composition often intersperse among in these two parts in proportion, and its ratio is easy to mixing before application for making these two parts.This ratio being easy to mix can be such as 1/12 or 1/2.
When it can be used as self-supporting elastomeric material to test, composition (A) must have extraordinary extension at break performance.For elastomeric material, this is a known performance and the person skilled in the art of this area can determine this performance by known technology, as by DIN standard 53409.This elongation at break is preferably 600-1000%.Preferred composition has the component (A) (a) of 50-90% (weight), the component (A) (b) of 0.5-10% (weight), the component (A) (c) of 0.5-10% (weight), the component (A) (e) of 5-40% (weight) and presents in an amount at least sufficient to ensure the component (A) (d) of (A) (a) and the addition reaction between (A) (b) and (A) (c) under general condition of cure.
When it can be used as self-supporting elastomeric material to test, component (B) must have extraordinary tear strength properties.For elastomeric material, this is a known performance and the person skilled in the art of this area can determine this performance by known technology, as used ASTM D624B.Preferred tearing strength is 30-60kN/m.Preferred composition contains the component (B) (a) of 50-90% (weight), the component (B) (b) of 0.8-11% (weight), the component (B) (c) of 0.9-10% (weight), the component (B) (e) of 5-30% (weight) and presents in an amount at least sufficient to ensure the component (B) (d) of (B) (a) and the addition reaction between (B) (c) and (B) (b) under general condition of cure.
Said composition can be coated on the base material of textile fabric by the method for prior art.These methods comprise spraying, are coated with and serigraphy with knife-over-roll coating, air knife blade coating, sheet rubber.Preferably the coating weight of often kind of composition is at least 24g/m before curing
2.The thickness of preferred ground floor coating is 27-60g/m
2, be more preferably 30-40g/m
2.The thickness of the second layer is preferably 30-180g/m
2, be more preferably 50-90g/m
2.Be easy to for making said composition be coated on this textile fabric, the viscosity of preferred composition (A) is 50000-200000mPas, and the viscosity of composition (B) is 80000-300000mPas.
Can under normal conditions composition (A) be applied on this textile fabric, certainly preferably carry out in order to avoid carry foreign matter secretly in operating process under the condition of clean enough.Preferably before operation this textile fabric to be washed, to reach adhesiveness good between composition.Before composition (A) solidification or along with its solidification, composition (B) can be coated in above composition (A).Be preferably composition (A) to be cured before composition (B) is applied thereto, composition (B) is being cured thereafter.But, the organic silica-based elastic composition that one or more separately add can be coated with between composition (A) and (B), preferably between composition (A) and (B), add the composition with extension at break performance and tear strength properties.And, most preferably be and composition (B) is directly coated on composition (A).Also can add one deck coating again on composition (B), such as, there is the material of low friction performance, or be more preferably the woven or non-woven textile fabric of additional one deck to improve the feel of intensity and/or this fabric.
The condition of cure of composition (A) and (B), was preferably according to temperature a period of time used under actual conditions.The condition of cure be applicable to of preferred composition is for being no more than in 5 minutes, and temperature rises to 200 DEG C from 120 DEG C.
According to the present invention's also a kind of claimed method; the method has elongation at break and is at least the ground floor of the organosiloxane based elastic material of 400% with a kind of and has the second layer coating textile fabric that tearing strength is at least 30kN/m, and makes this ground floor and the second layer solidify to form a kind of elastic coating on this fabric.
Although the second layer can be coated on ground floor and to make two-layerly to solidify simultaneously, be preferably first to apply ground floor and make it solidify and then again the second layer be coated on ground floor.
Can the air bag of stored-gas a period of time under stress, be made up of the fabric of sustainable stored-gas under stress recited above.
A kind of automobile inflating safety bag, it is made up of the fabric of cated fabric recited above sustainable stored-gas under stress.
Compared with prior art, advantage of the present invention comprises: the fabric face of the present invention's sustainable stored-gas is under stress coated with the combination of the two-layer polysiloxane coating on textile fabric surface, this fabric is become and is more suitable for forming the interregional barrier layer of a kind of different pressures, fabric can be made air bag and apply pressure in air bag, for gas being introduced air bag and those purposes making it expand, comprise automobile inflating safety bag, airplane emergency slideway and fire balloon etc.; The technique that the present invention is used is in addition simple, and medicine is easy to get, and has very large using value.
Detailed description of the invention
In view of deficiency of the prior art, inventor, through studying for a long period of time and putting into practice in a large number, is proposed technical scheme of the present invention.To be further explained this technical scheme, its implementation process and principle etc. as follows.
Following embodiment further illustrates the present invention, wherein as number as described in not particularly pointing out then and percentage all by weight, viscosity is the dynamic viscosity at 25 DEG C of temperature.
Embodiment
First composition (I) prepared by following method: 65 parts of viscosity are about the dimethyl silicone polymer of I, ω-vinyldimethylsiloxane end-blocking of 2Pas, the fumed silica of 34 parts of surface hydrophobicities mixes mutually with 0.002 part (weight) catalyst based on platinum.The viscosity of composition (I) is 100Pas.
Second composition (II) of preparation is about the dimethyl silicone polymer of I, ω-vinyldimethylsiloxane end-blocking of 2Pas containing 60 parts of (weight) viscosity, the pyrogenic silica of 24 parts of (weight) surface hydrophobicities, 6 parts of (weight) per molecules have at least 3 silicon bonded hydrogen atoms and viscosity is about the dimethyl siloxane with dimethyl hydrogen siloxane blocking units that the methyl hydrogen siloxane dimethylsiloxane copolymer with trimethicone blocking units of 7mPas and 7 parts of (weight) viscosity are about 10mPas.The viscosity of composition (II) is 100Pas.
3rd composition (III) of preparation is about the dimethyl silicone polymer of I, ω-vinyldimethylsiloxane end-blocking of 50Pas, the pyrogenic silica of 24 parts of surface hydrophobicities, 0.002 part (weight) the are about 355mPas dimethylsiloxane methyl vinyl siloxane copolymer with vinyldimethylsiloxane blocking units based on the catalyst of platinum and 9 parts of viscosity containing 65 parts of viscosity.The viscosity of composition (III) is 165Pas.
The preparation method of the 4th composition (IV): 61 parts of viscosity are about the dimethyl silicone polymer of I, ω-vinyldimethylsiloxane end-blocking of 55Pas, the pyrogenic silica of 25 parts of surface hydrophobicities, 3 parts of (weight) per molecules have at least 3 silicon bonded hydrogen atoms and the methyl hydrogen siloxane dimethylsiloxane copolymer with trimethicone blocking units that viscosity is about 5mPas mixes mutually with the dimethylsiloxane methyl vinyl siloxane copolymer with vinyldimethylsiloxane blocking units that 9 parts of viscosity are about 360mPas.The viscosity of composition (IV) is 185Pas.
Preparation for the formation elastomer compositions (C) contrasted is mixing 5 part of first composition, said composition contains the dimethyl silicone polymer of dimethylvinylsiloxy end-blocking and the mixture of hydrophobic silica of 65 part 70/30, 24 parts of flints, 4 parts of calcium carbonate and catalytic amount are based on the catalyst of platinum, and 1 part of second composition, said composition contains the dimethyl silicone polymer of dimethylvinylsiloxy end-blocking and the mixture of hydrophobic silica of 54 part 70/30, 46 parts of dimethylsiloxane methylhydrogensiloxacopolymer copolymer, this copolymer about 50% silicon atom on there is silicon bonded hydrogen atom.
embodiment 1
The double-layer polyamide fabric of a kind of 470 Dtex being made the side screen masterbatch textile fabric of air bag (in this fabric construction containing) with knife-over-roll rubbing method is 40-60g/m at the composition (I) of the coating on both sides 50/50 of this fabric and the elastomeric mixture of formation to the coating weight of (II)
2, then at 140-180 DEG C of temperature, cated for this tool fabric is heated 2 minutes.When after this tool cated fabric cools down to room temperature, the first coating applies until coating weight is 100g/m with the elastomeric mixture of formation of the composition (III) of 50/50 and (IV)
2, form the second coating, and the cated fabric of this tool heated as said method again.The coated fabric with two-layer siloxy group coating can be obtained like this, ground floor has the elongation at break (when testing as self-supporting elastomeric material) higher than 600%, and the second layer has the tearing strength (when testing as self-supporting elastomeric material) of 40-50kN/m.
Then cut this fabric to make the air bag side screen inflatable safety bag being of a size of 2m × 0.5m, it has an entrance, and when there is explosive inflation, air enters this air bag from entrance and makes it to expand and reach the pressure of 250kPa.Thereafter the pressure of sealing air bag is measured afterwards 3 seconds and 5 seconds.In addition, its slip is obtained by the pressure change along with the time, and in kPa/s/bar.Good performance is characterized by lower slip and higher residual pressure.Concrete test result is given in following table I.
comparative example C1-C5
All examples all carry out according to the method for embodiment 1, and difference is the coating being only coated with one deck silicone compositions in some cases on this fabric.In comparative example C1, composition C take coating weight as 70g/m
2amount coating; In comparative example C2, take coating weight as 50-75g/m
2amount application composition (III) and the mixture of (IV); In comparative example C3, be coated with the coating in two-layer comparative example C2; In comparative example C4 be using the coating of comparative example C1 as bottom using the coating in comparative example C2 as upper strata; In comparative example C5 be using the coating in embodiment 1 as bottom using the coating in comparative example C1 as upper strata.Test result is also listed in table I.
Table I
| Embodiment | Slip kPa/s/bar | Residual pressure after 3 seconds | Residual pressure after 5 seconds |
| 1 | 10 | 185KPa | 72 KPa |
| C1 | 650 | N/D | N/D |
| C2 | 140 | N/D | N/D |
| C3 | 135 | N/D | N/D |
| C4 | 92 | 21 KPa | N/D |
| C5 | N/A | N/D | N/D |
Wherein N/D represents that value is low to moderate and cannot measure, and N/A represents and calculates.
embodiment 2-5
The composition that coating is identical with embodiment 1 in polyamide fabric, difference is that the size of this air bag is only A4 size.The composition of embodiment 2 is identical with embodiment 1 with coating weight, and the coating weight of the second layer is only 50g/m in embodiment 3
2, the weight of ground floor is 100g/m in example 4
2and the coating weight of the second layer is 50g/m
2and coating weight two-layer in embodiment 5 is 100g/m
2.Then test this air bag by the method identical with embodiment 1, difference does not calculate slip.Test result is listed in the table below in II, but due to air bag size this result different can not with comparing in table I.
comparative example 6-7
With the method polyamide coating fabric of embodiment 2-4, difference is, in comparative example 6, be coated with coating weight is 100g/m
2comparative example C1 in coating and comparative example 7 applies coating weight is 150g/m
2composition C.Test this air bag by the method identical with embodiment 1, difference does not calculate slip.Test result is listed in table II.
Table II
| Embodiment | Residual pressure after 3 seconds | Residual pressure after 5 seconds |
| 2 | 110 KPa | 75 KPa |
| 3 | 32 KPa | 12 KPa |
| 4 | 33 KPa | 11 KPa |
| 5 | 124 KPa | 105 KPa |
| C6 | N/D | N/D |
| C7 | N/D | N/D |
Wherein N/D represents that pressure is too low and cannot measure.
Should be appreciated that above-described embodiment is only and technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. the fabric of a sustainable stored-gas under stress, it is characterized in that containing a kind of textile fabric with at least two-layer elastomeric material based on polysiloxane, the ground floor be coated on this fabric has the elongation at break of 400%-1000% and the second layer has the tearing strength of 30-60kN/m.
2. the fabric of sustainable stored-gas under stress according to claim 1, be further characterized in that, this textile fabric is that the mixture of synthetic fiber or natural fabric and synthetic fiber makes ground, is selected from polyester, polyimides, polyethylene, polypropylene, polyester-cotton, glass fibre.
3. the manufacture method of the fabric of sustainable stored-gas under stress, it is characterized in that, the method to comprise to a kind of formation elastomer compositions based on polysiloxane of this textile fabric coating as ground floor and a kind of formation elastomer compositions based on polysiloxane of coating as the second layer, and make these first and second layers to solidify to form a kind of elastic coating on this fabric, this ground floor forms a kind of elastomeric material with at least 400% elongation at break when solidifying, and this second layer forms a kind of elastomeric material with at least 30kN/m tearing strength when solidifying.
4. the manufacture method of the fabric of sustainable stored-gas under stress according to claim 3, is further characterized in that, the composition (A) for the formation of this ground floor comprising:
(a) 100 weight portion polysiloxane material, per molecule has the alkenyl of average two silicon bondings;
(b) a kind of organo-silicon compound, per molecule has at least three silicon bonded hydrogen atoms, and its value is enough to make the Si-H group in (b) be 1.1/1-5/1 with the mol ratio of the alkenyl in (a);
C the cahin extension agent of () 1-25 weight portion, comprises a kind of polysiloxane with two silicon bonded hydrogen atoms;
D (), based on the catalytic component of the VIIIth race's element, presents in an amount at least sufficient to catalysis one side for (a) and the opposing party is addition reaction between (b) and (c);
The dewatering filling of (e) 5-40 weight portion;
And comprising for the formation of this formation elastomer compositions (B) of the second layer:
(a) 100 polysiloxane material of weight portion, per molecule has the alkenyl of average two silicon bondings;
(b) a kind of organo-silicon compound, per molecule has at least three silicon bonded hydrogen atoms, and its value is enough to make the Si-H group in (b) be 1.2/1-6/1 with the mol ratio of the alkenyl in (a);
C the polysiloxane material of () 1-25 weight portion, have the alkenyl of the silicon bonding be connected with each terminal silicon atom in molecule, and at least one alkenyl is connected with the non-end silicon atom on this polysiloxane chain in addition;
D (), based on the catalytic component of the VIIIth race's element, presents in an amount at least sufficient to catalysis one side for (a) and the opposing party is addition reaction between (b) and (c);
(e) dewatering filling of 5-40 weight portion.
5. the manufacture method of the fabric of sustainable stored-gas under stress according to claim 4, be further characterized in that, polysiloxane (A) (a) and/or (B) (a) are a kind of polydiorganosiloxanepolyureas.
6. the manufacture method of the fabric of the sustainable under stress stored-gas according to claim 4 or 5, is further characterized in that, organo-silicon compound (A) (b) and/or (B) (b) have general formula R
6r
5 2siO (R
5 2siO) p (R
5hSiO) qSiR
5 2r
6, wherein R
5representative has the alkyl or aryl being no more than 10 carbon atoms, R
6a R
5group or a hydrogen atom, the value of p is the value of 0-20, q is 1-70, and has at least three silicon bonded hydrogen atoms in per molecule.
7. the manufacture method of the fabric of the sustainable under stress stored-gas according to any one in claim 4-6, be further characterized in that, dewatering filling (A) (e) and/or (B) (e) comprise a kind of fumed silica filler, make it to have surface hydrophobic with aliphatic acid, active silane or this filler particles of active siloxane treated.
8. according to the manufacture method of the fabric of the sustainable under stress stored-gas described in claim 4 or 5, be further characterized in that, component (A) (c) is a kind of polysiloxane with two diorganosiloxane units and hydrogenation two organosiloxane blocking units.
9. the manufacture method of the fabric of the sustainable under stress stored-gas according to any one in claim 4 or 5, be further characterized in that, often kind of formation elastomer compositions based on polysiloxane is all coated on this textile fabric by following method, the method is selected from spraying, knife-over-roll coating, the coating of air knife blade coating, sheet rubber or serigraphy, to make the thickness of ground floor coating for 25-70g/m
2, and the thickness of the second layer is 35-150g/m
2.
10. can the air bag of stored-gas a period of time under stress, it is characterized in that, it is made up of the fabric of the sustainable under stress stored-gas described in any one in claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072450.6A CN104727152A (en) | 2015-02-12 | 2015-02-12 | Fabric capable of continuously storing gas under pressure and manufacturing method and application of fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072450.6A CN104727152A (en) | 2015-02-12 | 2015-02-12 | Fabric capable of continuously storing gas under pressure and manufacturing method and application of fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104727152A true CN104727152A (en) | 2015-06-24 |
Family
ID=53451518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510072450.6A Pending CN104727152A (en) | 2015-02-12 | 2015-02-12 | Fabric capable of continuously storing gas under pressure and manufacturing method and application of fabric |
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| Country | Link |
|---|---|
| CN (1) | CN104727152A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794778A (en) * | 2017-11-20 | 2018-03-13 | 庄至宽 | Heat temperature resistant safe air bag fabric and preparation method thereof |
| CN110056043A (en) * | 2019-04-29 | 2019-07-26 | 福州大学 | A kind of fog collection device based on two-layer fabric |
| CN112919527A (en) * | 2021-02-22 | 2021-06-08 | 江西崇政科技有限公司 | Copper dissolving device |
-
2015
- 2015-02-12 CN CN201510072450.6A patent/CN104727152A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107794778A (en) * | 2017-11-20 | 2018-03-13 | 庄至宽 | Heat temperature resistant safe air bag fabric and preparation method thereof |
| CN110056043A (en) * | 2019-04-29 | 2019-07-26 | 福州大学 | A kind of fog collection device based on two-layer fabric |
| CN112919527A (en) * | 2021-02-22 | 2021-06-08 | 江西崇政科技有限公司 | Copper dissolving device |
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Application publication date: 20150624 |