CN103572454A - Fabric with low friction coefficient and application thereof - Google Patents
Fabric with low friction coefficient and application thereof Download PDFInfo
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- CN103572454A CN103572454A CN201310295063.XA CN201310295063A CN103572454A CN 103572454 A CN103572454 A CN 103572454A CN 201310295063 A CN201310295063 A CN 201310295063A CN 103572454 A CN103572454 A CN 103572454A
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Abstract
The invention discloses a fabric with low friction coefficient and an application thereof. The fabric is interweaved by warp yarns and weft yarns and is a woven fabric interweaved by polytetrafluoroethylene fiber and other fibers; the fineness of the polytetrafluoroethylene fiber as the warp yarns or the weft yarns is 50-1400dtex; the polytetrafluoroethylene fiber is polytetrafluoroethylene twistless filament. The fabric with low friction coefficient has the characteristics of high self-lubricating performance, good wearing resistance and simple process and is applied in mechanical motion parts.
Description
Technical field
The present invention relates to a kind of low-friction coefficient fabric and uses thereof.
Background technology
Traditional sliding bearing is generally all made by metal material, and this class bearing is limited to use in some occasion, such as underwater operation.Owing to having added lubricating oil in traditional bearing, in order to prevent the phenomenons such as leakage of oil, oil dripping, thereby greatly limited the application of traditional bearing in the occasion that can not use lubricating oil.Therefore, the necessary bearing of developing a kind of oil-free lubrication.Along with the development of technology, people have developed the pure polyflon of a kind of employing as press face, are applied in Nonlubricated bearing.Yet, in actual use, because the ABRASION RESISTANCE of polyflon is bad, cause the wearing and tearing of sliding bearing comparatively serious, greatly shortened its service life.Particularly, under high capacity operation, the surface self-lubricating Wear-resistant plastic bed of material (polyflon layer) is easy to be worn through, and causes traditional bearing or axle just to there will be the phenomenon of breaking, and serious in the situation that, even can threaten operating personnel's life security.
As disclosed a kind of self lubricating fabric thin layer composite material and preparation method thereof in Chinese publication CN 1259599A, fibrous intertexture and ABRASION RESISTANCE impregnated material that this self lubricating fabric thin layer composite material is formed by a kind of PTFE fiber and other fibrous woven form, although can play the effect of lowering friction and wear, but this invention adopts ABRASION RESISTANCE impregnated material to be configured to maceration extract, then spray to intertexture surface, PTFE powder in maceration extract, novolac epoxy resin has played lubrication, this method has not only increased technology difficulty, cost rises, and PTFE resin bed is applied in self-lubricating bearing as bottom cloth, its anti-wear performance does not have persistence and stability.
A kind of refractory metal-fabric/resin self-lubricating bearing composite and preparation method thereof is and for example disclosed in Chinese publication CN102145556A, this composite consists of bottom, intermediate layer, top layer, top layer is blended fabric/self-lubricating abrasion-resistant resin composite materials, although this invention has realized the tribological property of bearing material excellence and dependability at high temperature, but this composite complex manufacturing technology, cost is higher, blended fabric and self-lubricating abrasion-resistant resin compounded in addition, also can affect the flexibility of blended fabric.
Summary of the invention
The object of the present invention is to provide a kind ofly have that height self lubricity, ABRASION RESISTANCE are good, the simple low-friction coefficient fabric of technique and uses thereof.
Technical solution of the present invention is as follows: low-friction coefficient fabric of the present invention, this fabric is to be interwoven by warp thread and weft yarn, this fabric is the woven fabric being formed by polytetrafluoroethylene fibre and other fiber interweavings, fiber number as the polytetrafluoroethylene fibre of warp thread or weft yarn is 50～1400dtex, and above-mentioned polytetrafluoroethylene fibre is that polytetrafluoroethylene (PTFE) is without twisting filament.If the fiber number of polytetrafluoroethylene fibre is less than 50dtex, brute force is lower, easy broken yarn while weaving, but also can cause the mechanical performance of fabric to decline, abrasion performance variation; If the fiber number of polytetrafluoroethylene fibre is greater than 1400dtex, can cause fabric friction coefficient to become large, affect the self-lubricating effect of fabric.Consider fabric intensity and abrasion performance, the fiber number of polytetrafluoroethylene fibre is 200～1400dtex preferably, more preferably 400～1400dtex.The polytetrafluoroethylene fibre that forms this fabric is without twisting filament, in the long filament of no twist, each monofilament is arranged in parallel, this fabric forming without twisting filament is applied to the words of the stressed member of mechanical movement as bottom cloth, in fabric, polytetrafluoroethylene (PTFE) is without the length direction of twisting filament and the direction of motion of mechanical moving element when consistent, the frictional resistance of fabric is minimum, can play best self-lubricating effect.In addition, the fabric forming without twisting filament is occurring in the process of friction with the external world, and because monofilament is arranged in parallel, monofilament is stressed evenly, is not easy to be worn.If form the polytetrafluoroethylene fibre of this fabric for there being twisting filament, there is in twisting filament the arrangement between each monofilament more disorderly, and owing to having applied the twist, along the length direction of long filament, each monofilament there will be torsion phenomenon, when fabric contacts with mechanical moving element, the frictional force producing is larger, because monofilament is concentrated stressed, will very easily be rubbed, and self-lubricating effect is bad, the wearing and tearing of mechanical moving element are strengthened.Polytetrafluoroethylene fibre of the present invention makes by wet spinning process, and the polytetrafluoroethylene fibre making by the method is along the length direction of this fiber, and fineness is evenly distributed, and section is homogeneous circle, and excellent in sliding property, has extremely low coefficient of friction.If split and adopt the polytetrafluoroethylene fibre that embrane method makes, the size deviation of this fiber is larger, and section is irregular polygon, and sliding is poor, and coefficient of friction is higher.In addition, due to the fiber that splits embrane method and make, its source is resin film, stressed rear easy generation cold flow phenomenon, and ABRASION RESISTANCE variation, if damaged phenomenon easily occurs the fabric that adopts this fiber to make, thereby loses self-lubricating effect.
Low-friction coefficient fabric of the present invention, above-mentioned other fibers are one or more in polyester fiber, polyamide fiber, aramid fiber, polyphenylene sulfide fibre, cotton fiber.Adopt above-mentioned fiber and polytetrafluoroethylene fibre to interweave, make fabric of the present invention and not only there is good mechanical performance and lower coefficient of friction, can improve the adhesive property between fabric and metal, and this fabric can be resisted certain deformation in friction process, be conducive to maintain the proper motion of mechanical part, but also can reduce production costs.Above-mentioned other fiber preferred polyamide fibers (nylon 66 fiber), the fabric being made by nylon 66 fiber has lower coefficient of friction, is only second to polytetrafluoroethylene fibre.More preferably polyphenylene sulfide fibre and cotton fiber, because the molecular backbone of polyphenylene sulfide is formed by phenyl ring and sulphur atom alternative arrangement, molecular structure is symmetrical, and has the linearity of height, therefore this structure has high stability.And because the fusing point of polyphenylene sulfide fibre is 285 ℃, conventional temperature is 190 ℃, adopt polyphenylene sulfide fibre and polytetrafluoroethylene fibre to interweave, the fabric obtaining has excellent heat resistance.When this low-friction coefficient fabric is used for mechanical sliding position, can effectively avoid heating up to the hurtful problem of fabric because of motion.And cotton fiber is because the equilibrium moisture regain of cotton fiber is high (when 35 ℃ of temperature, humidity 70%, the equilibrium moisture regain of cotton fiber is 7.8%), adopt cotton fiber and polytetrafluoroethylene fibre to interweave, moisture in the fabric obtaining absorbent binder agent preferably, thereby significantly improve the adhesive property of this intertexture and metal material, and the price of cotton fiber is lower, can significantly reduce the production cost of this low-friction coefficient fabric.
Low-friction coefficient fabric of the present invention, described polytetrafluoroethylene (PTFE) is without containing 30～196 monofilament in twisting filament.If monofilament radical is less than 30, when fabric contacts with mechanical moving element, monofilament radical is fewer, and the abrasion performance of gained fabric will variation; If monofilament radical, more than 196, will increase spinning difficulty like this, cause production cost to increase.
Low-friction coefficient fabric of the present invention, described polytetrafluoroethylene (PTFE) without the coefficient of friction between twisting filament below 0.10, preferably below 0.08, more preferably below 0.06.If adopt coefficient of friction at more than 0.10 polytetrafluoroethylene (PTFE) long filament, it is large that the skin-friction coefficient of gained fabric becomes, and causes the self-lubricating effect variation of fabric.
Low-friction coefficient fabric of the present invention, this fabric be organized as plain weave, twill, satin weave or its alternative construction.Preferred twill or satin weave, more preferably twill-weave.Adopt the words of twill or its alternative construction, the ratio of the shared fabric total tissue point of polytetrafluoroethylene fibre interlacing point is more than 50%, fabric has good self-lubricating property like this, and in fabric, yarn is floating long moderate, can keep the good mechanical performance of fabric and abrasion performance.
Low-friction coefficient fabric of the present invention, the interlacing point quantity of described polytetrafluoroethylene (PTFE) accounts for more than 50% one side of fabric total tissue point quantity as rubbing surface, account for the one side of fabric total tissue point quantity below 50% as binding face, preferably polytetrafluoroethylene fibr tissue point quantity accounts for more than 65% one side of total tissue point quantity as rubbing surface, and polytetrafluoroethylene fibre interlacing point quantity accounts for the one side of total tissue point quantity below 35% as binding face.As rubbing surface, if polytetrafluoroethylene (PTFE) interlacing point quantity accounts for fabric total tissue point quantity lower than 50%, the sliding of fabric can significantly reduce, when fabric contacts with mechanical moving element, it is large that frictional resistance becomes, and loses the effect of self-lubricating, causes the running of mechanical moving element bad.As binding face, if polytetrafluoroethylene (PTFE) interlacing point quantity accounts for fabric total tissue point quantity higher than 50%, easily cause fabric to peel off and come off in motion loading process, shortened the service life of self lubricating fabric.The polytetrafluoroethylene (PTFE) interlacing point quantity is here relevant with the tissue of fabric, refers to that polytetrafluoroethylene (PTFE) interlacing point quantity accounts for the ratio of whole fabric total tissue point quantity in a complete fabric tissue circulation.Fabric tissue refers in fabric warp thread and weft yarn is interlaced or the rule of sink-float each other, and interlacing point refers to the intersection through weft yarn.
In addition, because polytetrafluoroethylene fibre of the present invention is without twisting filament, adopt common magnifying glass just can clearly observe the interlacing point of polytetrafluoroethylene (PTFE) interlacing point and other fibers.For example, fabric tissue of the present invention be on 21 time through face twill, and warp thread is that polytetrafluoroethylene (PTFE) is without twisting filament, so in a complete Weaving Cycle of this fabric, total tissue point quantity is 9, polytetrafluoroethylene (PTFE) interlacing point quantity is 6, and the ratio that this fabric face polytetrafluoroethylene (PTFE) interlacing point quantity accounts for whole fabric total tissue point quantity is 66.7%.
Low-friction coefficient fabric of the present invention, the described rubbing surface at fabric, along polytetrafluoroethylene (PTFE) without the coefficient of sliding friction of twisting filament parallel direction below 0.10, preferably below 0.08, more preferably below 0.06; Along polytetrafluoroethylene (PTFE) without the coefficient of sliding friction of twisting filament vertical direction below 0.15, preferably below 0.12, more preferably below 0.10.If along polytetrafluoroethylene (PTFE) without the coefficient of sliding friction of twisting filament parallel direction higher than 0.10, along polytetrafluoroethylene (PTFE) without the coefficient of sliding friction of twisting filament vertical direction higher than 0.15 words, the self-lubricating effect that this fabric is described is not remarkable, when fabric contacts with mechanical moving element, can affect the running of friction metal parts, fabric also can be easy to be worn like this.
Low-friction coefficient fabric of the present invention, the thickness of this fabric is 0.16～1.00mm, preferably 0.20～0.80mm, more preferably 0.20～0.60mm.If the thickness of this fabric is lower than 0.16mm, fabric is too thin, and abrasion performance is bad, easily in friction process, breaks; If the thickness of this fabric is higher than 1.00mm, the cost of raw material will correspondingly increase, and weaves difficulty, brings the rising of production cost.
Low-friction coefficient fabric of the present invention, this fabric through, broadwise tensile strength more than 800N/5cm, preferably more than 1000N/5cm, more preferably more than 1200N/5cm.Because this fabric is when the moving component for mechanical, need to use adhesive fit to layer on surface of metal, in laminating process, fabric can bear certain pressure and deformation.If fabric through, broadwise tensile strength lower than 800N/5cm, easily cause fabric in laminating process to be damaged.
Low-friction coefficient fabric of the present invention, the weight of this fabric is 160～600g/m
2.If the grammes per square metre of this fabric is lower than 160g/m
2, the too thin softness of fabric, abrasion performance is bad, easily in friction process, breaks; If the grammes per square metre of this fabric is higher than 600g/m
2, production cost will increase.
Low-friction coefficient fabric of the present invention, the warp-wise density of this fabric is 30～240 pieces/inch, latitudinal density is 30～240 pieces/inch.If this fabric through, latitudinal density lower than 30 pieces/inch, the abrasion performance of fabric reduces, and easily in friction process, breaks; If this fabric through, latitudinal density higher than 240 pieces/inch, production cost will increase, and difficulty of weaving increases.
Low-friction coefficient fabric of the present invention has that height self lubricity, ABRASION RESISTANCE are good, the simple feature of technique, and this low-friction coefficient fabric applications, in mechanical moving element, is particularly applied under the environment of low velocity, top load.
Accompanying drawing explanation
Fig. 1 is 1 ∕ 1 plain cloth schematic diagram, Fig. 2 be 2 ∕ 1 through face TWILL CLOTH schematic diagram, in Fig. 1,2,1,2,3,4,5,6 is warp thread, one, two, three, four, five, six is weft yarn, a is through interlacing point, b is latitude interlacing point.
The specific embodiment
By following examples, the present invention is described in further detail, the physical property in embodiment is measured by following method.
[fiber number]
According to the testing standard of JIS L-1017-2002 8.3, use thread yarn horizontal metroscope coiling 100 circle samples, every circle length is 1 meter, rotating speed is 120rpm, then sample is taken off to knotting, puts into baking oven, in temperature, be 105 ± 2 ℃, the time is within 2 hours, to be dried above processing.After sample is taken out, use precision balance to weigh, obtain absolute dry weight.The computing formula of fiber number is as follows: d=M ' * 10000 * (1+Rc/100)/L,
D wherein: fiber number (dtex)
Rc: official regain (%)
M ': the absolute dry weight of sample (g)
L: the length of sample (m).
[monofilament number]
Use copper coin method to carry out section sampling to a threads, long filament section sample is put on light microscope.To light microscope focusing, until clear view is to the section of sample.Optical microphotograph lens head is switched on display, and the survey tool in tool using hurdle is the monofilament number in mark sample section one by one.
[polytetrafluoroethylene (PTFE) long filament coefficient of friction]
Use IT-MS 5652 type friction coefficient instrument, setting test speed is that 55m/min, testing time are 20 seconds, and 5 groups of data of METHOD FOR CONTINUOUS DETERMINATION, get the mean value of 5 test results as the final testing result of this sample.
[polytetrafluoroethylene (PTFE) interlacing point]
In a complete fabric tissue circulation, intertwined point sum is designated as Rz, the intertwined point that polytetrafluoroethylene fibre floats on other fibers is called polytetrafluoroethylene (PTFE) interlacing point, be designated as Rp, calculate the ratio that polytetrafluoroethylene (PTFE) interlacing point quantity accounts for whole fabric total tissue point quantity, computing formula is as follows: polytetrafluoroethylene (PTFE) interlacing point proportion (%)=Rp/Rz * 100%.
[coefficient of sliding friction]
On PVvalue testing instrument (model: IT-RC INTEC manufactures), test.Concrete method of testing is as follows: the fabric sample of 50mm * 150mm is close to and is fixed in rubbing table, and use SUS304BA metallic plate as friction opponent material.In rubbing table, add the counterweight of 250g weight, with the speed of 50mm/min, test.The computing formula of coefficient of friction is as follows:
μ=f/?N
μ wherein: the coefficient of sliding friction
F: kinetic force of friction (N)
N: the normal pressure bearing on sample (N).
[abrasion performance]
According to JIS L 1096-1999 8.17, use CUSTOM AR-1 abrasiometer, the circular sample that is 12cm by diameter is placed on rubber film, adopt water-fast pouncing paper (model: C34P, granularity: P2000) be fixed on sample top as friction material, sample is carried out to multidirectional friction.Now, test pressure is that 27.6KPa, loading are that 0.45Kgf, speed are that 125 ± 5 Hui ∕ minutes, equipment rub back number while being 100 times, rotary sample one week.Usining broken hole that 7mm appears in fabric sample surface as off-test standard, get the motion of recording abrasiometer and return number, the mean value of 5 test results is as the final testing result of this sample, evaluate the grade of the abrasion performance of this fabric sample, wear away back number and be greater than 2000 times and be designated as ◎: be excellent, wear away back number be to be designated as 0 1000～2000 times: be good, to wear away back number be to be designated as △ 500～1000 times: generally, wear away back several be less than be designated as for 500 times *: poor.
[tensile strength]
According to the testing standard of JIS L-1017, on tension test instrument, test.Concrete method of testing is as follows: 300mm * 50mm fabric sample is fixed in the jaws up and down of tension test instrument, the spacing of jaws up and down of tension test instrument is 200mm, with the speed of 200mm/min, tests.Measure 5 groups of data, get the mean value of 5 test results as the final testing result of this sample.
[weight]
According to JIS L 1096-1999 8.4, use electronic balance, take the weight of the sample of 10cm * 10cm, then the data obtained is taken advantage of to 100, obtain the weight of every square metre of fabric after converting.
[thickness]
According to JIS L 1096-1999 8.5, the pressure of test is 23.5kPa (240gf/cm
2).
[density]
According to JIS L 1096-1999 8.6 densimetrys, with pick glass, measure the thread count of fabric.
It is that 440dtex, monofilament radical are 60 piece, threads with the coefficient of friction polytetrafluoroethylene (PTFE) that is 0.065 without twisting filament that warp thread adopts fiber number, it is that 470dtex, monofilament radical are that 72, tensile strength are nylon 66 full-drawn yarns that 39.8N, elongation at break are 23.3% that weft yarn adopts fiber number, by Rapier looms, weave, make warp count and be 62 pieces/inch, weft count and be the plain cloth of 62 pieces/inch.Wherein, the one side that polytetrafluoroethylene (PTFE) interlacing point accounts for above-mentioned fabrics total tissue point 50% accounts for 50% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point at the another side of fabric, and it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
It is that 440dtex, monofilament radical are 60 piece, threads with the coefficient of friction polytetrafluoroethylene (PTFE) that is 0.065 without twisting filament that warp thread adopts fiber number, it is that 280dtex, monofilament radical are the terylene fully drawn yarn of 48 that weft yarn adopts fiber number, by Rapier looms, weave, make warp count and be 90 pieces/inch, weft count and be 120 pieces/inch 3/1 through face TWILL CLOTH, wherein, the one side that polytetrafluoroethylene (PTFE) interlacing point accounts for above-mentioned fabrics total tissue point 75% accounts for 25% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point at the another side of fabric, and it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
It is 890dtex that warp thread adopts fiber number, monofilament radical is 120, the polytetrafluoroethylene (PTFE) that silk and thread coefficient of friction are 0.071 is without twisting filament, it is 470dtex that weft yarn adopts fiber number, monofilament radical is 136, tensile strength is 40.9N, elongation at break is 22.8% nylon 66 full-drawn yarns, by Rapier looms, weave, making warp count is 60 pieces/inch, weft count be 90 pieces/inch 2/1 through face TWILL CLOTH, wherein, polytetrafluoroethylene (PTFE) interlacing point accounts for the one side of above-mentioned fabrics total tissue point 66.7% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point accounts for 33.3% at the another side of fabric, it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
It is the aramid filament that 1135dtex, monofilament radical are 1000 that warp thread adopts fiber number, it is that 1330dtex, monofilament radical are 180 piece, threads with the coefficient of friction polytetrafluoroethylene (PTFE) that is 0.088 without twisting filament that weft yarn adopts fiber number, by Rapier looms, weave, 5 piece 2 that makes warp count and be 45 pieces/inch, weft count and be 45 pieces/inch flies reverse satin, wherein, the one side that polytetrafluoroethylene (PTFE) interlacing point accounts for above-mentioned fabrics total tissue point 80% accounts for 20% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point at the another side of fabric, and it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
It is 440dtex that warp thread adopts fiber number, monofilament radical is 60, the polytetrafluoroethylene (PTFE) that silk and thread coefficient of friction are 0.048 is without twisting filament, it is 470dtex that weft yarn adopts fiber number, monofilament radical is 72, tensile strength is 39.8N, elongation at break is 23.3% nylon 66 full-drawn yarns, by Rapier looms, weave, making warp count is 75 pieces/inch, weft count be 75 pieces/inch 3/1 through face TWILL CLOTH, wherein, polytetrafluoroethylene (PTFE) interlacing point accounts for the one side of above-mentioned fabrics total tissue point 75% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point accounts for 25% at the another side of fabric, it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
It is that 220dtex, monofilament radical are 30 piece, threads with the coefficient of friction polytetrafluoroethylene (PTFE) that is 0.045 without twisting filament that warp thread adopts fiber number, it is that 220dtex, monofilament radical are the terylene fully drawn yarn of 48 that weft yarn adopts fiber number, by Rapier looms, weave, make warp count and be 180 pieces/inch, weft count and be 140 pieces/inch 3/1 through face TWILL CLOTH, wherein, the one side that polytetrafluoroethylene (PTFE) interlacing point accounts for above-mentioned fabrics total tissue point 75% accounts for 25% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point at the another side of fabric, and it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
Embodiment 7
It is 440dtex that warp thread adopts fiber number, monofilament radical is 60, the polytetrafluoroethylene (PTFE) that silk and thread coefficient of friction are 0.047 is without twisting filament, it is 220dtex that weft yarn adopts fiber number, monofilament radical is that 100 polyphenyl thioether filaments and fiber number are 440dtex, monofilament radical is 60, silk carries out picking without twisting filament in the ratio of 1:1 with the polytetrafluoroethylene (PTFE) that silk coefficient of friction is 0.047, by Rapier looms, weave, making warp count is 140 pieces/inch, weft count is the backed cloth of 135 pieces/inch, wherein, polytetrafluoroethylene (PTFE) interlacing point accounts for the one side of above-mentioned fabrics total tissue point 87.5% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point accounts for 12.5% at the another side of fabric, it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
Embodiment 8
It is that 440dtex, monofilament radical are 60 piece, threads with the coefficient of friction polytetrafluoroethylene (PTFE) that is 0.055 without twisting filament that warp thread adopts fiber number, weft yarn employing fiber number is the cotton yarn strand of 80, by Rapier looms, weave, 5 piece 3 that makes warp count and be 200 pieces/inch, weft count and be 140 pieces/inch flies warp satin, wherein, the one side that polytetrafluoroethylene (PTFE) interlacing point accounts for above-mentioned fabrics total tissue point 80% accounts for 20% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point at the another side of fabric, and it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
Comparative example 1
It is that to be 60 piece, threads be 0.170 with a coefficient of friction, the twist is the polytetrafluoroethylene (PTFE) long filament of 300T/ rice for 440dtex, monofilament radical that warp thread adopts fiber number, it is that 470dtex, monofilament radical are that 72, tensile strength are nylon 66 full-drawn yarns that 39.8N, elongation at break are 23.3% that weft yarn adopts fiber number, by Rapier looms, weave, make warp count and be 62 pieces/inch, weft count and be the plain cloth of 62 pieces/inch.Wherein, the one side that polytetrafluoroethylene (PTFE) interlacing point accounts for above-mentioned fabrics total tissue point 50% accounts for 50% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point at the another side of fabric, and it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
Comparative example 2
Warp thread adopts that to split fiber number that embrane method makes be 440dtex, silk and the coefficient of friction polytetrafluoroethylene (PTFE) long filament that is 0.21, it is that 280dtex, monofilament radical are the terylene fully drawn yarn of 48 that weft yarn adopts fiber number, by Rapier looms, weave, make warp count and be 90 pieces/inch, weft count and be 75 pieces/inch 3/1 through face TWILL CLOTH, wherein, the one side that polytetrafluoroethylene (PTFE) interlacing point accounts for above-mentioned fabrics total tissue point 75% accounts for 25% as rubbing surface, polytetrafluoroethylene (PTFE) interlacing point at the another side of fabric, and it is as binding face.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
Comparative example 3
Through, weft yarn, all adopting fiber number is that 440dtex, monofilament radical are 60 piece, threads with the coefficient of friction polytetrafluoroethylene (PTFE) that is 0.067 without twisting filament, by Rapier looms, weave, make warp count and be 60 pieces/inch, weft count and be 90 pieces/inch 2/1 through face TWILL CLOTH.Wherein, polytetrafluoroethylene (PTFE) interlacing point is all 100% on above-mentioned fabrics two sides, when wherein one side is as binding face, easily peels off, and wears no resistance.And the fabric making is placed under 20 ± 2 ℃ of temperature, humidity 65 ± 4% conditions and carries out damping processing.Evaluate the characteristic of this fabric, and be shown in Table 1.
Claims (10)
1. a low-friction coefficient fabric, this fabric is interwoven by warp thread and weft yarn, it is characterized in that: this fabric is the woven fabric being formed by polytetrafluoroethylene fibre and other fiber interweavings, fiber number as the polytetrafluoroethylene fibre of warp thread or weft yarn is 50～1400dtex, and described polytetrafluoroethylene fibre is that polytetrafluoroethylene (PTFE) is without twisting filament.
2. low-friction coefficient fabric according to claim 1, is characterized in that: described other fibers are one or more in polyester fiber, polyamide fiber, aramid fiber, polyphenylene sulfide fibre, cotton fiber.
3. low-friction coefficient fabric according to claim 1, is characterized in that: described polytetrafluoroethylene (PTFE) is without containing 30～196 monofilament in twisting filament.
4. low-friction coefficient fabric according to claim 1, is characterized in that: described polytetrafluoroethylene (PTFE) without the coefficient of friction between twisting filament below 0.10.
5. low-friction coefficient fabric according to claim 1, is characterized in that: this fabric be organized as plain weave, twill, satin weave or its alternative construction.
6. low-friction coefficient fabric according to claim 1, is characterized in that: the interlacing point of described polytetrafluoroethylene (PTFE) accounts for more than 50% one side of fabric total tissue point as rubbing surface, accounts for the one side of fabric total tissue point below 50% as binding face.
7. low-friction coefficient fabric according to claim 6, it is characterized in that: the described rubbing surface at fabric, along polytetrafluoroethylene (PTFE) without the coefficient of sliding friction of twisting filament parallel direction below 0.10, along polytetrafluoroethylene (PTFE) without the coefficient of sliding friction of twisting filament vertical direction below 0.15.
8. low-friction coefficient fabric according to claim 1 and 2, is characterized in that: the thickness of this fabric is 0.16～1.00mm.
9. low-friction coefficient fabric according to claim 1 and 2, is characterized in that: this fabric through, broadwise tensile strength more than 800N/5cm.
10. a low-friction coefficient fabric claimed in claim 1 application in mechanical moving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310295063.XA CN103572454B (en) | 2012-08-07 | 2013-07-15 | A kind of Fabric with low friction coefficient and application thereof |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102776728 | 2012-08-07 | ||
| CN201210277672 | 2012-08-07 | ||
| CN201210277672.8 | 2012-08-07 | ||
| CN201310295063.XA CN103572454B (en) | 2012-08-07 | 2013-07-15 | A kind of Fabric with low friction coefficient and application thereof |
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| CN111188116A (en) * | 2020-02-17 | 2020-05-22 | 上海市纺织科学研究院有限公司 | Preparation method of polyether-ether-ketone fiber-based self-lubricating fabric |
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Effective date of registration: 20190203 Address after: Japan Tokyo central Nihonbashi Muromachi 1-1-2 Patentee after: Toray Industries, Inc. Address before: 226009 No. 58 Xin Kai Nan Road, Nantong economic and Technological Development Zone, Jiangsu Patentee before: Toray Fiber Research Institute (China) Co., Ltd. |
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