CN1261630C - Unidirectional carbon fiber fabric and its manufacturing method, and reinforced concrete structure - Google Patents
Unidirectional carbon fiber fabric and its manufacturing method, and reinforced concrete structure Download PDFInfo
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- CN1261630C CN1261630C CNB011375078A CN01137507A CN1261630C CN 1261630 C CN1261630 C CN 1261630C CN B011375078 A CNB011375078 A CN B011375078A CN 01137507 A CN01137507 A CN 01137507A CN 1261630 C CN1261630 C CN 1261630C
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/44—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific cross-section or surface shape
- D03D15/46—Flat yarns, e.g. tapes or films
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Abstract
Provided is a unidirectional carbon fiber woven fabric which has an excellent draping property and an excellent matrix resin-impregnating property is inexpensive, exhibits high strength characteristics, and has a large degree of freedom on designs such as the specification of warps and the Metsuke of the woven fabric, to provide a method for producing the woven fabric, and to provide a concrete structure reinforced with the woven fabric. The unidirectional carbon fiber woven fabric which comprises wefts and warps comprising non-twisted carbon fiber yarns comprising many carbon fibers is, characterized in that the warps are non-twisted doubled warps obtained by doubling plural non-twisted yarns and that the doubled warps and the wefts are bound to each other. The method for producing the unidirectional carbon fiber woven fabric is characterized by doubling the arbitrary number of unwound warps to form the non-twisted doubled warps, weaving the non-twisted doubled warps with wefts to form a preliminary woven fabric, passing the preliminary woven fabric through a heating and pressurizing device to deform the doubled warps into a on-twisted flat shape and simultaneously fuse a thermal-plasticity resin with the doubled warps and fasten the doubled warps. Enforcing the material of concrete structure means to provide the above-mentioned woven materials with fabric reinforced plastic layer.
Description
Technical field
The present invention relates to be used to unidirectional carbon fiber fabric and the manufacture method thereof strengthening the civil structure thing or be used for the carbon fibre fortified resin, and the concrete construction of strengthening with this fabric.
Background technology
Carbon fibre has well than engineering properties such as spring rate and powerful indexes, so, be processed to fabric, Fabric preform material or folk prescription intermediate materials to preforming material etc., be shaped them, and as impregnation repairing, the reinforcement material of the carbon fibre fortified resin (CFRP) of matrix resin or concrete structure use.
In these purposes, in order to reduce lamination work operations amount, during with the big fabric of thick carbon fibre silk production unit area weight, the restraining force of vertical silk and the staggered generation of horizontal hair is strong, and the flexibility of fabric and the impregnation of matrix resin are poor.
Before, the interval of knitting silk is reduced to the little Density that strengthens of width of indulging silk than carbon fibre, but the big unidirectional carbon fiber fabric of manufacturer's area weight, but, the fabric that obtains, the gap between its vertical silk is overstocked, and the impregnation of matrix resin is insufficient.Therefore,, also can not get uniform formed products (preforming material etc.) and laminate, that is, contain the space or produce stress and concentrate such inhomogeneous even adopt this fabric to form.
In addition, commercially available carbon fibre silk, be specification product with certain fiber number and width, in addition, because keeping shape with setting agent, so, when its vertical silk as unidirectional carbon fiber fabric is used, the fiber number, width, a vertical silk spacing/vertical silk width that changes vertical silk is very difficult than the weight per unit area of, fabric etc., and the design freedom of fabric is little.
May 9 nineteen ninety-five), Japanese kokai publication hei 10-102792 communique (open day: on April 21st, 1998) etc. relevant prior art document has: Japanese kokai publication hei 7-118988 communique (open day:.
Goal of the invention
The present invention makes in view of the above problems, the concrete structure that its purpose is to provide a kind of unidirectional carbon fiber fabric and manufacture method thereof and strengthens with this fabric.Unidirectional carbon fiber of the present invention, even vertical silk is big, the thick carbon fibre silk of fiber number, as the reinforcement base material of CFRP, the weight per unit area of its fabric is big, and flexibility is good, the impregnation of matrix resin is good and cheap and have high-strength characteristic.Bigger in the fiber number of vertical silk, width, a vertical silk spacing/vertical silk width than the free degree in the design of the weight per unit area of, fabric etc.
Technical scheme
Promptly, unidirectional carbon fiber fabric of the present invention, constitute by vertical silk and horizontal hair, vertical silk is the carbon fibre tow of the non-sth. made by twisting state that is made of many carbon fibres, it is characterized in that, should vertical silk be the carbon fibre tow plying thing that the some plying of carbon fibre tow with non-sth. made by twisting form, and this carbon fibre tow plying thing also is non-sth. made by twisting state, carbon fibre tow plying thing and horizontal hair be affixed with thermoplastic resin.
The manufacture method of unidirectional carbon fiber fabric of the present invention uses the non-sth. made by twisting carbon fibre tow that is made of many carbon fibres as vertical silk, as horizontal hair, makes unidirectional carbon fiber fabric with the silk that contains thermoplastic resin, it is characterized in that,
Separate many above-mentioned carbon fibre tow easypro respectively;
With the above-mentioned carbon fibre tow that has relaxed of separating, each forms the carbon fibre tow plying thing of many non-sth. made by twisting states with any radical plying;
Many horizontal hairs are passed between these many carbon fibre tow plying things, make the semi-finished product fabric;
By the heating and pressurizing device, make carbon fibre tow plying thing become the flat of non-sth. made by twisting in this semi-finished product fabric, and make the thermoplastic resin fusing that contains in the horizontal hair, horizontal hair and carbon fibre tow plying thing is affixed.
Reinforced concrete structure of the present invention is characterized in that, on the surface of concrete structure, has carbon fibre reinforced plastics layer, and this carbon fibre reinforced plastics layer contains unidirectional carbon fiber fabric of the present invention.
Fig. 1 is the skeleton diagram of the vertical silk feedway that adopts among the embodiment.
Fig. 2 is the situation during with 2 flat carbon fibre silk plying among the present invention.
Fig. 3 is the stereogram of the unidirectional carbon fiber fabric of embodiment 1.
Embodiment
Below, describe the present invention in detail.
Usually, said " unidirectional carbon fiber fabric ", be meant such fabric, promptly in this fabric, towards a direction (for example longitudinal direction) assortment the silk, be the carbon fibre silk that is used for reinforced concrete structure etc., the silk that (transverse direction) assortment to another way is the filament that is used to keep towards the carbon fibre filament shape of longitudinal direction assortment.Therefore, horizontal hair is also referred to as auxiliary wire, and horizontal hair can be made of any fiber, as long as this fiber does not unclamp vertical silk.In unidirectional carbon fiber fabric, vertical silk is closeer than horizontal hair, that is, the gap ratio horizontal hair of vertical silk is little, the fiber number height.
Constitute the carbon fibre of the vertical silk that adopts among the present invention, diameter is preferably 5～10 μ m, and can adopt pitch is carbon fibre, polyacrylonitrile based carbon fibre etc.The vertical silk that adopts among the present invention, be to be formed by the parallel deploying row of 3000～24000 carbon fibres, its fiber number is preferably 500～20000 DENIER, and TENSILE STRENGTH is 1～8GPa, be preferably 2～5GPa, tensile elasticity rate is 100～1000GPa, is preferably 200～700GPa.In order to be non-sth. made by twisting shape after plying, in fact vertical silk is the silk of non-sth. made by twisting.Carbon fibre silk with above-mentioned rerum natura, ト レ カ (registration mark is for example arranged, east レ (strain) society system), パ イ ロ Off イ Le (registration mark, Mitsubishi's レ イ ヨ Application (strain) society system), ベ ス Off ア イ ト (registration mark, east nation's レ イ ヨ Application (strain) society system), the silk of the various grades of グ ラ ノ Star Network (registration mark, Japanese グ ラ Off ア イ ト Off ア イ バ-(strain) society system).
The vertical silk that adopts among the present invention normally obtains the plying of 2～5 non-sth. made by twisting carbon fibre silks, and the fiber number of the plying that obtains is preferably 1000～40000 DENIER.
Constituting some carbon fibre silks of a vertical plying, can be separate separation, also can be a rhizoid that does not have the border mutually.
For example, common available carbon element silk is the state that has kept shape with setting agent, when only many these silks being lumped together, must remain plying separate between the silk.If this plying is heated to the above temperature of fusing point of setting agent, the fiber that then constitutes each unclamps, and disappears with the border of adjacent silk, with after its cooling, forms a rhizoid again.
If constitute separate separation between the silk of a vertical plying, its advantage is the gap that matrix resin passes through silk and silk, easy impregnation.On the other hand, if become a rhizoid that does not have the border between the silk, its advantage is to be not easy to unclamp.
The carbon fibre of vertical silk has adhered to usually and has not contained epoxy resin setting agent curing agent, 0.5～2.5 quality %.If setting agent is less than 0.5 quality %, then in the weaving operation, vertical silk has been gone up a lot of hairs, the flat pattern that is not easy to keep to indulge after the weaving thread.If setting agent more than 2.5 quality %, then hinders fabric impregnation matrix resin, reduce the rerum natura of shaping thing.
Horizontal hair is also referred to as auxiliary wire, and among the present invention, horizontal hair can adopt any fiber, only otherwise vertical silk is unclamped to get final product.The fiber number of horizontal hair is littler than vertical plying, is preferably in the scope of 50～600 DENIER.The fiber of horizontal hair can adopt inorfil, organic fiber, for example can adopt glass fibre, alumina fibre, aromatics polyamides ammonium fiber, carbon fibre, polyester fiber, spun silk, acrylic fibre, polyvinyl alcohol fibre, cotton thread, linen thread etc.But horizontal hair adopts preferably that by heating and pressurizing devices such as hot-rollings time fabric is indeformable, the material of no thermal contraction, for example preferably adopts glass fibre, carbon fibre, ア ラ ミ De fiber, polyvinyl alcohol fibre.The spacing of horizontal hair is 0.5～5cm normally.
In the unidirectional carbon fiber fabric of the present invention, because vertical plying and horizontal hair are affixed with thermoplastic resin, so, when constituting the silk independent separate of vertical plying, can prevent that the eyelet of vertical silk is crooked, keep the design shape of fabric.
In order to indulge plying and horizontal hair is affixed, can adopt the vertical plying that contains thermoplastic resin, also can adopt the horizontal hair that contains thermoplastic resin, also can adopt said two devices, preferably will contain the horizontal hair of thermoplastic resin and not resiniferous vertical silk is affixed.The containing method and can adopt any method of thermoplastic resin, for example, make horizontal hair impregnation thermoplastic resin or coated or make pulverous thermoplastic resin to knit in the horizontal hair or moldable resin fiber and horizontal hair are interweaved or be parallel to horizontal hair by thermoplastic resin attached to mixing on the horizontal hair or with the thermoplastic resin fibre.The amount of thermoplastic resin, preferably 3～10 quality % of horizontal hair and resin total amount.
The thermoplastic resin that horizontal hair contains is preferably in the following fusing of the temperature of not damaging horizontal hair, certainly, uses the resin of fusing point below the fusing point of horizontal hair, for example, can adopt nylon resin, mylar, polyvinyl resin.
In the manufacture method of unidirectional carbon fiber fabric of the present invention,, form the vertical plying of many non-sth. made by twisting forms with the carbon fibre plying of any radical.Because with the silk plying of any radical, so the setting of the weight per unit area of the fiber number of the vertical silk that obtains, width, spacing/width ratio, fabric etc. is easy, the design freedom of fabric is big.
The example of the form when Fig. 2 represents to make 2 flat carbon fibre silks 1 (representing its section) form a vertical silk by 8,8 of a pair of dents respectively.During with flat carbon fibre silk plying, tilt to join as shown in Figure 2 with staggering, make filament combination agley each other, merely stacked better up and down than flat horizontal surface is docked mutually like this.Like this, the plying that obtains approaches a rhizoid state, is not easy to unclamp.In addition, during for example with the carbon fibre silk plying of 2 certain fiber numbers, if with above-mentioned form plying, then to be not limited to be 2 times to weight per unit area, can become various weight per unit areas, and design freedom is higher.
In the manufacture method of the present invention, after vertical plying and containing the horizontal hair weaving of thermoplastic resin, make it by heating and pressurizing devices such as hot-rollings, affixed with two.This heating-up temperature must be the temperature of melted thermoplastic resin, and the temperature that this heating-up temperature is preferably such: when containing setting agent in the vertical plying, the viscosity of setting agent reduces, carbon fibre silk after the plying is in one, and vertical plying becomes the temperature of flat pattern easily.Usually, this heating-up temperature is 90～120 ℃, preferably 100～110 ℃.
In addition, vertical plying and horizontal hair by weaving after, become the vertical plying of non-sth. made by twisting shape when flat by the heating and pressurizing device, preferably its width is 3～16mm, thickness is 0.1～0.6mm.
Unidirectional carbon fiber fabric of the present invention, the spacing between vertical plying is 1.0～1.3 with respect to the ratio of vertical plying width, basis weight is 200～1000g/m
2, fibre density is 0.8～2.2g/cm
3, fabric thickness is the scope of 0.1～0.5mm.
Here the fibre density of said fabric is the value with the following formula definition.
Fibre density (the g/cm of fabric
3)=(basis weight (g/m
2))/(fabric thickness (mm))
In addition, basis weight (g/m
2) and fabric thickness (mm), be value according to the standard test of JIS R7602.The unidirectional carbon fiber fabric of one embodiment of the invention, vertical plying spacing is identical approximately with vertical plying width, so the fibre density of fabric is big, the fibre density of common unidirectional carbon fiber fabric is 0.8g/cm
3, and can reach 0.8～2.2g/cm among the present invention
3
When adopting the fabric of fibre density in above-mentioned scope, even the shop simple and easy forming process of forming process or vacuum bag moulding method etc. repeatedly by hand is also can shaped fibers volume containing ratio big, be the good CFRP of mechanical property.
Unidirectional carbon fiber fabric of the present invention is vertical plying and the staggered fabric of horizontal hair that some carbon fibre silks constitute, and its knit stitches is not limited to twill-weave or satin tissue etc.But, to compare with common fabric, in the fabric of the present invention, the interval between horizontal hair is big, and eyelet is crooked easily, so, consider from morphological stability, preferably plain weave.
In addition, in the fabric of the present invention, by weaving, the shrinkage of knitting silk is little with very thick density for flat vertical silk, so detrusion easily.That is, fabric of the present invention, more than needed owing to being separated with between vertical silk, so, during detrusion, the width and the interval of knitting silk are narrowed down, do not produce fold, can be out of shape significantly.
Unidirectional carbon fiber fabric of the present invention, the fiber number of vertical silk is big, and easy impregnation matrix resin, so, can obtain even tissue, void-free fiber-reinforced plastic shaping thing.For example, form fabric of the present invention on the surface of concrete structure and contain the fiber-reinforced plastic layer of matrix resin, the concrete structure that can have been strengthened.
In most preferred embodiment, in fabric of the present invention, the matrix resin of impregnation 30～75 quality % (FRP QUALITY STANDARD) forms fiber-reinforced plastic layer, it is bonded on the works such as bridge pier, chimney, tunnel, wall, floor, can strengthen works.
Reinforced concrete structure of the present invention, can be on the works surface fiber-reinforced plastic layer of stacked several layers, also can between works and fiber-reinforced plastic layer, contain bottom, the material beyond the fiber-reinforced plastic layer such as regulating the material layer that is uneven.
The following describes method with unidirectional carbon fiber fabric reinforced concrete structure of the present invention.With suds or acetone etc. the greasy dirt attached to the concrete structure surface is cleaned earlier, with resin injection etc. with the crack landfill, then, in order to make concrete and the CFRP good bond that contains carbon fiber fabric of the present invention, on the concrete after the above-mentioned processing, apply bottom, place diel and make its drying.In addition, available mortar or putty etc. are flattened the concavo-convex of surface.Then, coating is as the normal temperature hardened epoxy resin of the matrix of CFRP, and stacked in the above again carbon fiber fabric of the present invention evenly distributes resin with impregnation roller or rubber cam etc., makes the fabric impregnation simultaneously.Application of resin is thereon carried out the impregnation operation with impregnation roller or rubber cam, as required repeatedly several times again.Make hardening of resin at normal temperatures, obtain reinforced concrete structure of the present invention.
Unidirectional carbon fiber fabric of the present invention also can be used known method impregnation matrix resin, makes preforming material.
Adoptable matrix resin among the present invention for example has thermoplastic resin and thermosetting resin.Thermosetting resin has epoxy resin, unsaturated polyester resin, polyimide resin, phenolic resins etc.These thermosetting resins are the B levels containing the state that is immersed in the fabric.In addition, can be used as the thermoplastic resin that matrix resin uses, have nylon resin, mylar, polybutene terephalic acid ester resin, polyether-ether-ketone (PEEK) resin, span to come the acid anhydrides imines PVC ス マ レ イ ミ De resin etc. that contracts.In addition, the shared thermosetting resin or the amount of thermoplastic resin in fabric of the present invention are pressed the quality criteria of preform material, are 30～67 quality %, are preferably 34～55 quality %.
Below, unidirectional carbon fiber fabric of the present invention and manufacture method thereof are described and an embodiment of the concrete structure strengthened with this fabric.But the present invention is not limited to this embodiment.
The fabric manufacturing device that uses when explanation earlier adopts the inventive method to make unidirectional carbon fiber fabric of the present invention.In the manufacturing installation,, have spool, deflector roll, withdrawing roll, tensioning apparatus and arrow shaft etc. as the horizontal hair feedway; As vertical silk feedway, have creel, card wire, tensioning guide member, harness cord and reed.In the present embodiment, 2 carbon fibre silks constitute a vertical plying, are provided with 4 spools on the creel of vertical silk feedway.
The horizontal hair feedway is described earlier.On spool, the glass fiber of 200 DENIER of reeling.In order to fuse, in this glass fibre, sneaked into the polymerization nylon silk of 8 quality % with vertical silk.This glass fibre by the rotation of withdrawing roll, is separated easypro with certain speed through deflector roll.The glass fiber of pulling out from withdrawing roll is suspended on the arrow shaft through the guide member of tensioning apparatus.
When horizontal hair was inserted between vertical plying off and on by arrow shaft, tensioning apparatus flexibly absorbed the lax of the glass fiber of being loosened with certain speed by withdrawing roll, makes it be in tensioning state always.Arrow shaft being is configured in the strip parts of reed front portion, in the transverse direction action, horizontal hair inserted between the vertical plying of weaving portion off and on.
Below, with reference to Fig. 1 vertical silk feedway is described.The vertical silk 1 that adopts is the carbon fibre silk (the system ト レ カ T700SC-12K (several 12000 of carbon fibre, fiber number 7200 DENIER) of eastern レ (strain) society) of 4 non-sth. made by twisting, is respectively reeling 1 on 4 spools 2.The TENSILE STRENGTH of this carbon fibre silk is about 5GPa, and tensile elasticity rate is about 235GPa, and the tensile failure degree of drawing is 2.1%, and the epoxy that has adhered to 0.8 quality % is a setting agent.
In vertical silk feedway, with similarly above-mentioned, the vertical plying of a plurality of non-sth. made by twisting state that is formed by each 2 filament plying is directed into fell, inweave from the horizontal hair that the horizontal hair feedway is sent here, knit plain cloth.Then,, will indulge plying and horizontal hair is affixed, produce unidirectional carbon fiber fabric as shown in Figure 3, that have the flat vertical plying 11 of non-sth. made by twisting by being heated to 100 ℃ hot-rolling, making the nylon yarn fusing that contains in the horizontal hair.
In addition, owing to, make the setting agent fusing, 2 carbon fibre silks after the plying are become one, so vertical plying is not easy to loosen by above-mentioned hot-rolling.
The fabric that obtains, the density of its vertical plying are 2.5/cm, and horizontal hair density is 1.25/cm, and the width of vertical plying is 4mm, and vertical plying spacing/vertical plying width ratio is 1.0, and basis weight is 400g/m
2, fabric thickness is 0.222mm, Density is 1.8g/cm
3
Make this fabric impregnation cured at atmosphere resin, make its sclerosis, be made into the CFRP plate.At this moment, resin is by abundant impregnation.The TENSILE STRENGTH of the CFRP plate that obtains is 4200MPa, and mechanical performance is good.
In addition, on concrete pier, apply the cold(-)setting epoxy resin earlier, the above-mentioned carbon fiber fabric that obtains of reeling again applies epoxy resin again, with the extruding of impregnation roller, makes the easier epoxy resin dipping that contains of fabric.Behind the hardening of resin, between fiber-reinforced plastic layer that forms and concrete pier surface, cannot see and arch upward, can strengthen concrete pier well.
Comparative example 1
To the vertical silk of the non-sth. made by twisting that adopts among the embodiment 1, do not carry out plying, but the use of former state ground, in order to make basis weight and embodiment 1 identical (400g/m
2), adopting the density of vertical silk is 5.0/cm, and the density of horizontal hair is 1/cm, and the width of vertical silk is 2mm.The unidirectional carbon fiber fabric that non-sth. made by twisting is indulged silk is made in all the other operations similarly to Example 1.Other specification of the fabric that obtains, identical with embodiment 1, vertical silk spacing/vertical silk width ratio is 1.0, and fabric thickness is 0.222mm, and Density is 1.8g/cm
3
In this fabric, vertical silk and horizontal hair to knit a spacing little, so vertical is not flat, it is wavy that the surface is, inhomogeneous.
In addition, make the CFRP plate similarly to Example 1 with this fabric.At this moment, the resin impregnation of this fabric is bad, and application property is poor.The CFRP plate that obtains shows the tensile strength values identical with embodiment 1.
In addition, similarly to Example 1, on concrete pier, apply the cold(-)setting epoxy resin earlier, the carbon fiber fabric of this comparative example of reeling again applies epoxy resin again, and with the extruding of impregnation roller, but fabric is not easy to contain epoxy resin dipping.Behind the hardening of resin, between fiber-reinforced plastic layer that forms and concrete pier, can see and arch upward.
From embodiment 1 and comparative example more as can be known, even basis weight is identical, the fabric that the fiber number of vertical plying is many, it has an even surface evenly.When this fabric was used for concrete structure, the space was few between the two, can connect airtight mutually, can more firmly strengthen works.
The carbon fibre silk (the system ト レ カ T700SC-24K (several 24000 of carbon fibre, fiber number 14400 DENIER) of eastern レ (strain) society) that adopts 4 non-sth. made by twisting is as vertical silk, the TENSILE STRENGTH of this carbon fibre silk is about 5GPa, tensile elasticity rate is about 235GPa, the tensile failure degree of drawing is 2.1%, and the epoxy that has adhered to 0.8 quality % is a setting agent.All the other are identical with embodiment 1, make the unidirectional carbon fiber fabric of the present invention with the flat vertical silk of non-sth. made by twisting.
The fabric that obtains, the density of its vertical plying are 1.8/cm, and horizontal hair density is 1/cm, and the width of vertical plying is 5.4mm, and vertical plying spacing/vertical plying width ratio is 1.02, and basis weight is 600g/m
2, fabric thickness is 0.333mm, Density is 1.8g/cm
3
Make the CFRP plate similarly to Example 1 with this fabric.At this moment, this fabric can fully contain resin pickup.The TENSILE STRENGTH of the CFRP plate that obtains is 4175MPa, and mechanical performance is good.
In addition, similarly to Example 1, on concrete pier, apply the cold(-)setting epoxy resin earlier, the carbon fiber fabric of the embodiment 2 that reels again applies epoxy resin more thereon, and with the extruding of impregnation roller, fabric contains epoxy resin dipping easily.Behind the hardening of resin, between fiber-reinforced plastic layer that forms and concrete pier, cannot see and arch upward, can strengthen concrete pier well.
From top explanation as can be known, unidirectional carbon fiber fabric of the present invention, vertical silk is the flat carbon fibre silk of the non-sth. made by twisting state that is made of many carbon fibre silks, some plying constitute, so, even the weight per unit area of fabric is big, also impregnation matrix resin well, as the armature of concrete structure, be good unidirectional fabric.In addition, fabric of the present invention is made easily, and productivity might as well.
In addition, owing to any form the plying of some carbon fibre silks is constituted vertical silk, so the setting of the width of the fiber number of vertical silk, vertical silk, vertical silk spacing/vertical silk width ratio, basis weight etc. is easy, the design freedom of fabric is big.
Claims (5)
1. unidirectional carbon fiber fabric, constitute by vertical silk and horizontal hair, vertical silk is the carbon fibre tow of the non-sth. made by twisting state that is made of many carbon fibres, it is characterized in that, it should vertical silk be the carbon fibre tow plying thing that the many plying of carbon fibre tow with non-sth. made by twisting form, and this carbon fibre tow plying thing also is non-sth. made by twisting state, and carbon fibre tow plying thing and horizontal hair are affixed with thermoplastic resin.
2. unidirectional carbon fiber fabric as claimed in claim 1 is characterized in that, many carbon fibre tow that constitute above-mentioned carbon fibre tow plying thing are rhizoids that do not have the border to each other.
3. unidirectional carbon fiber fabric as claimed in claim 1 is characterized in that, many carbon fibre tow that constitute above-mentioned carbon fibre tow plying thing are separate separation.
4. the manufacture method of unidirectional carbon fiber fabric uses the non-sth. made by twisting carbon fibre tow that is made of many carbon fibres as vertical silk, as horizontal hair, makes unidirectional carbon fiber fabric with the silk that contains thermoplastic resin, it is characterized in that,
Separate many above-mentioned carbon fibre tow easypro respectively;
With above-mentioned separate the carbon fibre tow that relaxed each with any radical plying, form the carbon fibre tow plying thing of many non-sth. made by twisting states;
With many horizontal hairs by making the semi-finished product fabric between these many carbon fibre tow plying things;
By the heating and pressurizing device, make carbon fibre tow plying thing become the flat of non-sth. made by twisting in this semi-finished product fabric, and make the thermoplastic resin fusing that contains in the horizontal hair, horizontal hair and carbon fibre tow plying thing is affixed.
5. reinforced concrete structure is characterized in that, has carbon fibre reinforced plastics layer on the surface of concrete structure, and this carbon fibre reinforced plastics layer comprises the fabric of each record in the claim 1 to 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000325134A JP2002138344A (en) | 2000-10-25 | 2000-10-25 | Unidirectional carbon fiber woven fabric, method for producing the same, and reinforced concrete structure |
| JP325134/2000 | 2000-10-25 |
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| CN1350079A CN1350079A (en) | 2002-05-22 |
| CN1261630C true CN1261630C (en) | 2006-06-28 |
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| CNB011375078A Expired - Fee Related CN1261630C (en) | 2000-10-25 | 2001-10-25 | Unidirectional carbon fiber fabric and its manufacturing method, and reinforced concrete structure |
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| JP (1) | JP2002138344A (en) |
| CN (1) | CN1261630C (en) |
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| CN104389438B (en) * | 2014-12-10 | 2017-03-01 | 华北水利水电大学 | A kind of seismic hardening mechanism of concrete column and method |
| IT201700019306A1 (en) * | 2017-02-21 | 2018-08-21 | Automobili Lamborghini Spa | PROCEDURE AND SEMI-FINISHED TO MANUFACTURE COMPOSITE PRODUCTS AND PRODUCTS OBTAINED SO |
| JP7236763B2 (en) * | 2017-07-07 | 2023-03-10 | ユニチカ株式会社 | Weft for carbon fiber fabric and carbon fiber fabric using this weft |
| CN113863707B (en) * | 2021-10-08 | 2022-09-30 | 合肥双诺建筑结构工程有限公司 | Reinforced concrete beam reinforced by carbon fiber cloth and reinforcing method |
| CN114775163B (en) * | 2022-04-21 | 2024-04-26 | 山东斯福特实业有限公司 | Production equipment for continuously preparing FRP grid |
| CN114910103B (en) * | 2022-05-16 | 2024-05-24 | 江苏大学 | Multi-electrode CFRP sensing bar and preparation system and preparation method thereof |
-
2000
- 2000-10-25 JP JP2000325134A patent/JP2002138344A/en active Pending
-
2001
- 2001-09-12 TW TW090122541A patent/TW514687B/en not_active IP Right Cessation
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Also Published As
| Publication number | Publication date |
|---|---|
| TW514687B (en) | 2002-12-21 |
| JP2002138344A (en) | 2002-05-14 |
| CN1350079A (en) | 2002-05-22 |
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