CN110938994A - Production method of carbon fiber dip-coated fabric - Google Patents
Production method of carbon fiber dip-coated fabric Download PDFInfo
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- CN110938994A CN110938994A CN201911011161.XA CN201911011161A CN110938994A CN 110938994 A CN110938994 A CN 110938994A CN 201911011161 A CN201911011161 A CN 201911011161A CN 110938994 A CN110938994 A CN 110938994A
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- Prior art keywords
- carbon fiber
- dipping
- fiber base
- base cloth
- coated fabric
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 96
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 96
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000004744 fabric Substances 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000007598 dipping method Methods 0.000 claims abstract description 84
- 238000002360 preparation method Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 9
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 239000003822 epoxy resin Substances 0.000 claims abstract description 9
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 9
- 239000005011 phenolic resin Substances 0.000 claims abstract description 9
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 208000030555 Pygmy Diseases 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000007493 shaping process Methods 0.000 claims abstract description 6
- 238000009941 weaving Methods 0.000 claims abstract description 6
- 210000000225 synapse Anatomy 0.000 claims description 21
- 238000001125 extrusion Methods 0.000 claims description 15
- 239000000839 emulsion Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 claims description 5
- 238000004090 dissolution Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000004048 modification Effects 0.000 abstract description 7
- 238000012986 modification Methods 0.000 abstract description 7
- 238000007788 roughening Methods 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000004753 textile Substances 0.000 abstract description 2
- 238000005470 impregnation Methods 0.000 description 10
- 239000012752 auxiliary agent Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000013081 microcrystal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/45—Oxides or hydroxides of elements of Groups 3 or 13 of the Periodic Table; Aluminates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
- D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/41—Phenol-aldehyde or phenol-ketone resins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a production method of a carbon fiber impregnated coating fabric, belonging to the field of textile canvas and comprising the following production steps: step one, preparing carbon fiber base cloth: weaving carbon fibers by using a rigid rapier loom to prepare carbon fiber base cloth; step two, preparation of a gum dipping solution: putting the weighed epoxy resin, the water-soluble phenolic resin, the butadiene-pygmy rubber and ammonia water into a reaction kettle containing deionized water for reaction to prepare a gum dipping solution; step three, preparation of the dipped fabric: the method comprises the steps of firstly carrying out mechanical roughening treatment on the surface of the carbon fiber base cloth by using a front pressure roller of a gum dipping machine, then dipping, and carrying out filter pressing, squeezing by using a gum dipping squeezing roller, drying at a high temperature, stretching and shaping, cooling and reeling treatment in sequence to obtain the gum dipped canvas. The invention is improved aiming at the technical problems of complex carbon fiber modification process, poor modification uniformity and the like, and has the characteristics of uniform gum dipping, good gum dipping viscosity, strong bonding force with rubber, high mechanical strength and the like.
Description
Technical Field
The invention relates to the field of textiles, in particular to a production method of a carbon fiber dip coating fabric.
Background
The carbon fiber is a high-strength and high-modulus fiber material with the carbon content of more than 95%. It is made up by stacking organic fibres of flake graphite microcrystals along the axial direction of fibre, and making carbonization and graphitization treatment so as to obtain the invented microcrystal graphite material. The carbon fiber is lighter than metal aluminum in weight, but higher than steel in strength, and has the characteristics of corrosion resistance and high modulus. Meanwhile, the carbon fiber also has a plurality of excellent properties, such as high axial strength and modulus, low density, high specific performance, no creep deformation, ultrahigh temperature resistance in a non-oxidation environment, good fatigue resistance, specific heat and conductivity between nonmetal and metal, small thermal expansion coefficient, anisotropy, good corrosion resistance, good X-ray permeability, good electric and heat conductivity, electromagnetic shielding property and the like. Compared with the traditional glass fiber, the Young modulus of the carbon fiber is more than 3 times, the carbon fiber is insoluble and does not swell in organic solvents, acids and alkalis, and the corrosion resistance is outstanding.
Meanwhile, the surface of the carbon fiber is lack of active molecular groups, so that the carbon fiber is difficult to be independently fused with other materials to prepare a corresponding finished product. Although the prior art discloses the modification of the surface of carbon fibers by oxidation or electrochemistry, these methods are complicated and the uniformity of modification is not good, resulting in non-uniform adhesion during the later bonding process with rubber. The invention aims to solve the problems, and active groups are introduced to the surface of the carbon fiber in a mechanical and physical modification mode, so that the requirements of products are met. Compared with other chemical modification methods, the method has the characteristics of simple operation, uniform impregnation, high production efficiency and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a production method of carbon fiber dip-coated fabric, and aims to solve the technical problems that the carbon fiber modification process is complex, the modification uniformity is poor, and the dipping solution is difficult to infiltrate with carbon fiber in the prior art;
in order to solve the technical problems, the invention discloses a production method of a carbon fiber impregnated coating fabric, which comprises the following production steps:
step one, preparation of carbon fiber base cloth
Weaving carbon fibers by using a rigid rapier loom to prepare carbon fiber base cloth;
step two, preparation of gum dipping solution
Putting the weighed epoxy resin, the water-soluble phenolic resin, the butadiene-pygmy rubber and ammonia water into a reaction kettle containing deionized water for reaction to prepare a gum dipping solution;
step three, preparation of impregnated cloth
Before the carbon fiber base cloth is introduced into the dipping solution, the surface of the carbon fiber base cloth is mechanically roughened by a front pressure roller of a dipping machine, then the carbon fiber base cloth is dipped into the dipping solution for dipping, and the dipped canvas is obtained after filter pressing, squeezing by a dipping squeeze roller, high-temperature drying, stretching and shaping, cooling and reeling treatment in sequence.
Furthermore, synapses are uniformly distributed on the surface of the front pressure roller in the third step, and the front pressure roller with uniform synapses extrudes the carbon fiber base cloth before gum dipping, so that uniform pits are formed on the surface of the carbon fiber base cloth.
Furthermore, the dipping solution also comprises a VAE emulsion with the mass concentration of 15% and a dissolving auxiliary agent, and the VAE emulsion can enable the dipping solution to quickly form a film on the surface of the carbon fiber base fabric to form a uniformly dispersed coating.
Further, the dissolving assistant comprises nano aluminum oxide, dodecyl trimethyl ammonium chloride and tetrabutyl ammonium bromide. The nano aluminum oxide can be well filled into the direct gaps of the carbon fibers to fill the gaps of the carbon fibers, so that the mechanical strength of the carbon fibers is improved. Dodecyl trimethyl ammonium chloride is used as a high molecular surfactant, can reduce the surface tension between molecules, promotes the impregnation liquid to be fully mixed, and is not easy to coagulate.
Furthermore, the height of synapses is 50-100 nm, and the density of synapses is 15-20/cm2. Synapses can enable the surface of the carbon fibers to form concave-convex intervals which are uniformly distributed, and the distance between the concave-convex intervals can enable the carbon fibers and the impregnation solution to form intermolecular spaceActing force and hydrogen bonds can well adhere the impregnation liquid to the surface of the carbon fiber.
Furthermore, the extrusion pressure of the front pressure roller is 1800-2000N, and the rotating speed of the front pressure roller is 50-80 cm/min.
Further, the pressure of the impregnation extrusion roller in the third step is 600-800N, the extrusion speed is 0.5-0.8 m/min, the temperature of the oven is controlled at 200-230 ℃, the warp density of the carbon fiber base fabric is 180-230 pieces/10 cm, and the weft density is 50-80 pieces/10 cm.
Further, the gum dipping solution comprises the following components in parts by weight:
furthermore, in order to better facilitate the uniform dispersion of the dipping solution, an ultrasonic device is further installed at the bottom of the dipping solution in the third step.
The invention discloses a production method of carbon fiber dip-coated fabric, which is characterized in that the surface of carbon fiber is modified in a mechanical mode and coated by using special dipping solution. The carbon fiber base cloth prepared by the production method has the characteristics of uniform gum dipping, good gum dipping viscosity, strong bonding force with rubber, high mechanical strength and the like.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
Embodiment 1 discloses a production method of a carbon fiber dip-coated fabric, which comprises the following production steps:
step one, preparation of carbon fiber base cloth
Weaving carbon fibers by using a rigid rapier loom to prepare carbon fiber base cloth;
step two, preparation of gum dipping solution
Putting the weighed epoxy resin, the water-soluble phenolic resin, the butadiene-pygmy rubber and ammonia water into a reaction kettle containing deionized water for reaction to prepare a gum dipping solution; the gum dipping solution comprises the following components in parts by weight: 5 parts of epoxy resin, 20 parts of water-soluble phenolic resin, 50 parts of butadiene-pyridine rubber, 2 parts of ammonia water and 15 parts of deionized water. The impregnation liquid also comprises 2 parts of VAE emulsion with the mass concentration of 15% and 1 part of dissolving auxiliary agent, wherein the dissolving auxiliary agent comprises nano aluminum oxide, dodecyl trimethyl ammonium chloride and tetrabutyl ammonium bromide.
Step three, preparation of impregnated cloth
Before the carbon fiber base cloth is introduced into the dipping solution, the surface of the carbon fiber base cloth is subjected to mechanical roughening treatment by using a front pressure roller of a dipping machine, then the carbon fiber base cloth is immersed into the dipping solution for dipping, and the dipping canvas is obtained after filter pressing, squeezing by using a dipping squeeze roller, high-temperature drying, stretching and shaping, cooling and reeling treatment in sequence. The pressure of the impregnation extrusion roller is 600N, the extrusion speed is 0.5m/min, the temperature of the oven is controlled at 200 ℃, the warp density of the carbon fiber base fabric is 180 threads/10 cm, and the weft density is 50 threads/10 cm.
The mechanical roughening treatment of the surface of the carbon fiber base cloth includes the steps of distributing synapses on the roller surface of the front pressure roller, extruding the carbon fiber base cloth by the front pressure roller with homogeneous synapses before gum dipping, forming homogeneous pits on the surface of the carbon fiber base cloth to roughen the surface, wherein the height of the synapses is 50nm, and the density of the synapses is 15/cm2. The pressure of the extrusion of the front pressure roller is 1800N, and the rotating speed of the front pressure roller is 50 cm/min. In order to better facilitate the uniform dispersion of the dipping solution, an ultrasonic device is also arranged at the bottom of the dipping solution in the third step. The carbon fiber base cloth prepared in the embodiment is tested by a dipping meter, the dipping amount is 5.7%, the thickness of the glue layer is 0.3mm, the dipping is sufficient, and the use requirement of industrial canvas is completely met.
Example 2
Embodiment 2 discloses a production method of a carbon fiber dip-coated fabric, which comprises the following production steps:
step one, preparation of carbon fiber base cloth
Weaving carbon fibers by using a rigid rapier loom to prepare carbon fiber base cloth;
step two, preparation of gum dipping solution
Putting the weighed epoxy resin, the water-soluble phenolic resin, the butadiene-pygmy rubber and ammonia water into a reaction kettle containing deionized water for reaction to prepare a gum dipping solution; the gum dipping solution comprises the following components in parts by weight: 7 parts of epoxy resin, 25 parts of water-soluble phenolic resin, 60 parts of butadiene-pyridine rubber, 3 parts of ammonia water and 20 parts of deionized water. The impregnation liquid also comprises 3 parts of VAE emulsion with the mass concentration of 15% and 1 part of dissolving auxiliary agent, wherein the dissolving auxiliary agent comprises nano aluminum oxide, dodecyl trimethyl ammonium chloride and tetrabutyl ammonium bromide.
Step three, preparation of impregnated cloth
Before the carbon fiber base cloth is introduced into the dipping solution, the surface of the carbon fiber base cloth is subjected to mechanical roughening treatment by using a front pressure roller of a dipping machine, then the carbon fiber base cloth is immersed into the dipping solution for dipping, and the dipping canvas is obtained after filter pressing, squeezing by using a dipping squeeze roller, high-temperature drying, stretching and shaping, cooling and reeling treatment in sequence. The pressure of the dipping extrusion roller is 700N, the extrusion speed is 0.6m/min, the temperature of the oven is controlled at 210 ℃, the warp density of the carbon fiber base fabric is 200 pieces/10 cm, and the weft density is 60 pieces/10 cm.
The mechanical roughening treatment of the surface of the carbon fiber base cloth includes the steps of distributing synapses on the roller surface of the front pressure roller, extruding the carbon fiber base cloth by the front pressure roller with homogeneous synapses before gum dipping, forming homogeneous pits on the surface of the carbon fiber base cloth to roughen the surface, wherein the height of the synapses is 70nm, and the density of the synapses is 20/cm2. The extrusion pressure of the front pressure roller is 2000N, and the rotating speed of the front pressure roller is 60 cm/min. In order to better facilitate the uniform dispersion of the dipping solution, an ultrasonic device is also arranged at the bottom of the dipping solution in the third step. The carbon fiber base fabric prepared in the embodiment is tested by a dipping machine, the dipping amount is 4.3%, the thickness of the glue layer is 0.25mm, and the dipping amount is good.
Example 3
Embodiment 3 discloses a method for producing a carbon fiber dip-coated fabric, comprising the following production steps:
step one, preparation of carbon fiber base cloth
Weaving carbon fibers by using a rigid rapier loom to prepare carbon fiber base cloth;
step two, preparation of gum dipping solution
Putting the weighed epoxy resin, the water-soluble phenolic resin, the butadiene-pygmy rubber and ammonia water into a reaction kettle containing deionized water for reaction to prepare a gum dipping solution; the gum dipping solution comprises the following components in parts by weight: 9 parts of epoxy resin, 30 parts of water-soluble phenolic resin, 70 parts of butadiene-pyridine rubber, 3 parts of ammonia water and 35 parts of deionized water. The impregnation liquid also comprises 3 parts of VAE emulsion with the mass concentration of 15% and 1 part of dissolution auxiliary agent. The dissolving assistant comprises nano aluminum oxide, dodecyl trimethyl ammonium chloride and tetrabutyl ammonium bromide.
Step three, preparation of impregnated cloth
Before the carbon fiber base cloth is introduced into the dipping solution, the surface of the carbon fiber base cloth is subjected to mechanical roughening treatment by using a front pressure roller of a dipping machine, then the carbon fiber base cloth is immersed into the dipping solution for dipping, and the dipping canvas is obtained after filter pressing, squeezing by using a dipping squeeze roller, high-temperature drying, stretching and shaping, cooling and reeling treatment in sequence. The pressure of the impregnation extrusion roller is 800N, the extrusion speed is 0.8m/min, the temperature of the oven is controlled at 230 ℃, the warp density of the carbon fiber base fabric is 230 pieces/10 cm, and the weft density is 80 pieces/10 cm.
The mechanical roughening treatment of the surface of the carbon fiber base cloth includes the steps of distributing synapses on the roller surface of the front pressure roller, extruding the carbon fiber base cloth by the front pressure roller with homogeneous synapses before gum dipping, forming homogeneous pits on the surface of the carbon fiber base cloth to roughen the surface, wherein the height of the synapses is 100nm, and the density of the synapses is 20/cm2. The extrusion pressure of the front pressure roller is 2000N, and the rotating speed of the front pressure roller is 80 cm/min. In order to better facilitate the uniform dispersion of the dipping solution, an ultrasonic device is also arranged at the bottom of the dipping solution in the third step. The carbon fiber base fabric prepared in the embodiment is tested by a dipping machine, the dipping amount is 5.5%, the thickness of the glue layer is 0.18mm, and the dipping amount is good.
Through the tests on the carbon fiber canvas in the above embodiments, it can be seen that the dipping solution has a good dipping effect on the carbon fiber canvas, and all the carbon fiber canvas meets the requirement index that the industrial cloth has 3% of carbon fiber glue absorption amount. Meanwhile, due to the existence of the VAE emulsion, the gum dipping solution is uniformly dispersed on the surface of the carbon fiber canvas, and the film forming property is good.
Claims (9)
1. A production method of a carbon fiber dip-coated fabric is characterized by comprising the following production steps:
step one, preparation of carbon fiber base cloth
Weaving carbon fibers by using a rigid rapier loom to prepare carbon fiber base cloth;
step two, preparation of gum dipping solution
Putting the weighed epoxy resin, the water-soluble phenolic resin, the butadiene-pygmy rubber and ammonia water into a reaction kettle containing deionized water for reaction to prepare a gum dipping solution;
step three, preparation of impregnated cloth
Before the carbon fiber base cloth is introduced into the dipping solution, the surface of the carbon fiber base cloth is mechanically roughened by a front pressure roller of a dipping machine, then the carbon fiber base cloth is dipped into the dipping solution for dipping, and the dipped canvas is obtained after filter pressing, squeezing by a dipping squeeze roller, high-temperature drying, stretching and shaping, cooling and reeling treatment in sequence.
2. The method for producing a carbon fiber-impregnated coated fabric according to claim 1, wherein synapses are uniformly distributed on the roll surface of the front pressure roll in step three, and the front pressure roll with uniform synapses presses the carbon fiber base fabric before gum dipping, so that uniform pits are formed on the surface of the carbon fiber base fabric.
3. The method for producing a carbon fiber dip-coated fabric according to claim 1, wherein the dipping solution further comprises 15% by mass of VAE emulsion and a dissolution aid.
4. The method for producing a carbon fiber-impregnated coated fabric according to claim 3, wherein the dissolution assistant comprises nano aluminum oxide, dodecyl trimethyl ammonium chloride and tetrabutyl ammonium bromide.
5. The method for producing a carbon fiber-impregnated coated fabric according to claim 2, wherein the height of the synapse is 50-100 nm, and the density of the synapse is 15-20/cm2。
6. The method for producing a carbon fiber-impregnated coated fabric according to claim 2, wherein the pressure of the extrusion by the front pressure roller is 1800 to 2000N, and the rotation speed of the front pressure roller is 50 to 80 cm/min.
7. The production method of the carbon fiber impregnated coated fabric according to claim 1, wherein the pressure of the dipping extrusion roller in the third step is 600-800N, the extrusion speed is 0.5-0.8 m/min, the temperature of the oven is controlled at 200-230 ℃, the warp density of the carbon fiber base fabric is 180-230 pieces/10 cm, and the weft density is 50-80 pieces/10 cm.
8. The method for producing a carbon fiber dip-coated fabric according to claim 1, wherein the dip solution comprises the following components by weight:
9. the method for producing a carbon fiber dip-coated fabric according to claim 1, wherein an ultrasonic device is further installed at the bottom of the dipping solution in the third step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011161.XA CN110938994A (en) | 2019-10-23 | 2019-10-23 | Production method of carbon fiber dip-coated fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011161.XA CN110938994A (en) | 2019-10-23 | 2019-10-23 | Production method of carbon fiber dip-coated fabric |
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Cited By (2)
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| CN113564840A (en) * | 2021-07-23 | 2021-10-29 | 东莞市超强运动器材有限公司 | Carbon fiber cloth production process |
| CN114016294A (en) * | 2021-11-30 | 2022-02-08 | 青岛天邦线业有限公司 | Preparation method and application of functional carbon fiber cord |
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