CN110359131A - A kind of carbon fiber wire and preparation method thereof - Google Patents
A kind of carbon fiber wire and preparation method thereof Download PDFInfo
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- CN110359131A CN110359131A CN201910517427.1A CN201910517427A CN110359131A CN 110359131 A CN110359131 A CN 110359131A CN 201910517427 A CN201910517427 A CN 201910517427A CN 110359131 A CN110359131 A CN 110359131A
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- carbon fiber
- fiber wire
- powdery paints
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
- D01F11/14—Chemical after-treatment of artificial filaments or the like during manufacture of carbon with organic compounds, e.g. macromolecular compounds
-
- 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
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters 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
- 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
- D06M15/507—Polyesters
-
- 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
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- 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
-
- 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/35—Abrasion, pilling or fibrillation resistance
Abstract
The invention discloses a kind of preparation methods of carbon fiber wire, comprising: (1) precursor is pre-processed and heated, obtain the carbon fiber wire first product that temperature is 50-160 DEG C；(2) powdery paints is coated in the surface of the carbon fiber wire first product by electrostatic spraying, and heats completion solidification or semi-solid preparation；(3) it will solidify or the powdery paints of semi-solid preparation cool down, obtain carbon fiber wire finished product after receiving silk winding；The powdery paints is thermosetting powder coating, and solidification temperature is 70-200 DEG C, and average grain diameter is 1-20 μm.Correspondingly, the present invention also provides a kind of carbon fiber wires prepared by the above method.Using the present invention, simplify technique, simplify storage condition, gained carbon fiber wire can save under room temperature, and save will not be cured for a long time, and appearance color is rich and varied, and performance is stablized.
Description
Technical field
The present invention relates to fibre technical field, in particular to a kind of carbon fiber wire and preparation method thereof.
Background technique
Carbon fiber refers to high strength and modulus fiber of the carbon content 90% or more.High temperature resistant shelter has first of chemical fibre.Carbon
Fiber does raw material with acrylic fibers and viscose rayon, is carbonized through high-temperature oxydation, is the excellent of the high technical equipment such as manufacture space flight and aviation
Good timber material.
The production technology of carbon fiber mainly includes two processes of precursor production and carbonization: precursor production process mainly includes gathering
Conjunction deaeration, metering, spinneret, traction, is washed, is oiled, drying and receive the processes such as silk.Carbonisation mainly include put silk, pre-oxidation,
Low-temperature carbonization, surface treatment, starching drying, receives the processes such as silk winding at high temperature cabonization.
Phenomena such as carbon fiber is fragile material, has been easy to appear lousiness during post-processing.It can by sizing process
Very good solution this problem, and the general epoxy coating infiltration for selecting liquid of starching drying is easy to produce on carbon fiber wire surface
It is raw to infiltrate the problems such as bad.Moreover, the carbon fiber after starching drying needs to save at 4 degree of low temperature or so, its curing reaction is prevented,
Required with condition of storage high, energy consumption, storage time is short, using the time it is short the disadvantages of.
In the prior art, it also occurs powder paint to carbon fiber surface, such as Chinese patent
CN101484628A discloses a kind of carbon fiber, one or more nanoreinforcement materials including about 0.1 to about 20 weight %.
The nanoreinforcement material is selected from carbon nanotube, carbon nano-fiber, graphene platelet, nano wire, elemental nanoparticles, binary chemical combination
Object nanoparticle and complex nanoparticle.It coats by the nanoreinforcement material starching or with metal or is applied with thermoplastic resin
It covers, to help to disperse, apply or multi-functional.
For another example: Chinese patent CN101565893B discloses a kind of tow or yarn for manufacturing nanoreinforced carbon fiber
Method, comprising: the nanoreinforcement material that powder coating is formed with powdery paints coated with nano reinforcing material, wherein the powder
Last coating is thermoplastic resin or adhesive；More carbon fibers are stopped up to form tow or yarn；With will be through powder coating
Nanoreinforcement material Electrostatic spraying to the tow or yarn on so that the more carbon fibers and described through powder coating
Nanoreinforcement material is in contact.
From the foregoing, it will be observed that the prior art is all the strength and stiffness for needing to use nanoreinforcement material to improve carbon fiber, knot
Structure is complicated, and manufacture craft is also complicated, higher cost.Moreover, powdery paints is coated on nanoreinforcement material, and not the carbon fiber
Ontology, it is therefore intended that enhance the strength and stiffness of carbon fiber, cannot achieve the diversification of carbon fibre appearance color in this way.
Secondly, the prior art utilizes the thermoplastic resin for being.However carbon fiber is all used in than relatively rugged environment (high temperature
High humidity), according to thermoplastic resin, when in use, with temperature change, the intensity and surface property of carbon fiber can all be sent out
Changing causes performance unstable.
In addition, although the prior art, using powdery paints, its coating method is after impregnating powdery paints, to form liquid
The coating of state is coated with onto nanoreinforcement material.Be unfavorable for environmental protection in this way, cannot achieve raw material all of producing
Journey can generate waste.
Finally, the powdery paints that the prior art utilizes primarily serves the effect of adhesive, it is therefore intended that bond enhancing material,
Performance without coating can not also be enriched therefore, it is impossible to just realize the strength and stiffness of enhancing carbon fiber by powdery paints
Appearance colour.If the product needs the variation of appearance colour, additional coating is needed.
Summary of the invention
First technical problem to be solved by this invention is, provides a kind of preparation method of carbon fiber wire, simplifies work
Skill simplifies storage condition, and gained carbon fiber wire can save under room temperature, and preservation will not occur admittedly for a long time
Change, solves the problems, such as that tradition uses epoxy resin as the low-temperature storage of prepreg.Product of the invention simultaneously has appearance color
Rich and varied, performance is stablized.
Second technical problem to be solved by this invention is, provides a kind of preparation method of carbon fiber wire, production effect
Rate is high, and solvent-free participation reaction does not discharge VOCs, do not generate waste, be good for the environment, and guarantees safety.
Third technical problem to be solved by this invention is, provides a kind of carbon fiber wire, and structure is simple, can be in room temperature
Lower long-time saves, and performance is stablized, and is free of VOCs, is environment-friendly products.
Although the 4th problem to be solved by this invention is to use epoxy resin as carbon fiber made of prepreg at present
There is very strong tensile strength, but since it is more crisp, it is then excessively poor in shock resistance.Using carbon made by the present invention
Fibre has extraordinary toughness.
To reach above-mentioned technical effect, the present invention provides a kind of preparation methods of carbon fiber wire, comprising:
(1) precursor is pre-processed and is heated, obtain the carbon fiber wire first product that temperature is 50-160 DEG C；
(2) powdery paints is coated in the surface of the carbon fiber wire first product by electrostatic spraying, and it is solid to heat completion
Change or semi-solid preparation；
(3) powdery paints after solidification is cooled down, obtains carbon fiber wire finished product after receiving silk winding；
The powdery paints is thermosetting powder coating, and solidification temperature is 70-200 DEG C, and average grain diameter is 1-20 μm.
As an improvement of the above scheme, the powdery paints is low temperature cured powder coating, and solidification temperature is 70-160 DEG C,
Average grain diameter is 1-3 μm；
The filament diameter of the carbon fiber wire first product is 5-20 μm.
As an improvement of the above scheme, the powdery paints selects polyester powder coating, polyester epoxy mixed type powder to apply
One of material, pure epoxy powdery paints, acrylic acid powder coatings are a variety of.
As an improvement of the above scheme, step (1) includes:
Precursor is successively carried out to put silk, pre-oxidation, low-temperature carbonization, high temperature cabonization and surface treatment, obtains carbon fiber wire
First product；
Carbon fiber wire first product is dried, carbon fiber wire is made to be heated to 50-160 DEG C.
Alternatively, step (1) includes:
Precursor is successively carried out to put silk, pre-oxidation, low-temperature carbonization, high temperature cabonization, surface treatment and starching drying, is obtained
Carbon fiber wire first product；
The pre-heat treatment is carried out to carbon fiber wire first product, carbon fiber wire is made to be heated to 50-160 DEG C.
As an improvement of the above scheme, the powdery paints be coated in the carbon fiber wire first product surface with a thickness of
2-5μm。
As an improvement of the above scheme, the carbon fiber wire first product passes through infra red heating device or hot air circulation equipment
Carry out drying and processing；The carbon fiber wire first product carries out the pre-heat treatment by infra red heating device or hot air circulation equipment；
The carbon fiber wire first product is heated by infra red heating device or hot air circulation equipment, completes solidification.
As an improvement of the above scheme, the infra red heating device be catalytic pyrolysis of natural gas generate infrared baker or
Drying tunnel.
As an improvement of the above scheme, number of the powder paint on carbon fiber wire first product surface be it is primary or
Repeatedly, the powdery paints is transparent powder paint or colored powder coating.
Correspondingly, the invention also discloses a kind of carbon fiber wires made of above-mentioned preparation method.
Implement the invention has the following beneficial effects:
(1) then the present invention melts powdery paints first by powder paint on carbon fiber wire surface, solid without generating
Change, then semi-solid preparation or solidification are completed by heating, is then cooled to room temperature, forms the form of solid.Gained finished product in this way is in room
The phenomenon that can saving, and can saving for a long time without solidifying under temperature.
(2) present invention selects thermosetting powder coating, can be with after thermosetting powder coating is sprayed on carbon fiber wire surface
It directly paints in carbon fiber, and intensity, rigidity, toughness, wearability and the weatherability of carbon fiber can be improved.Moreover, the present invention is logical
Selection electrostatic spraying is crossed, the type and partial size of powdery paints are limited, so that all realizing powdery paints on each carbon fiber wire
Coating, and reach uniform coloring effect, meet the needs of textile industry.
(3) present invention uses powder paint, and powdery paints is solid-state like, solvent-free, 100% solid content, Ke Yiyong
The method of electrostatic spraying is constructed, and construction method is simplified.
(4) present invention uses powdery paints, since powdery paints is solvent-free, does not contain VOCs, is environment-friendly type coating, is making
It makes and not can cause environmental pollution in work progress；Since powdery paints is 100% solid content, use can be recycled, it will not
Generate waste；Since powdery paints does not contain solvent, the fire safety demands of manufacture and construction environment are reduced.
(5) present invention uses powdery paints, can be with rapid curing, and production efficiency is compared with liquid coating height.
(6) powdery paints of the invention forms the film with a thickness of 2-5 μm after being attached to carbon fiber wire first product surface, so as to
Good bond effect can be formed during the weaving in later period braiding, avoids the problem that film cracking.
Detailed description of the invention
Fig. 1 is the flow chart of the preparation method of carbon fiber wire of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
Existing carbon fiber applies generally to the high technical equipment such as space flight and aviation, less to be applied to field of textiles.Weaving is special
Carbon fiber needs some specific performances, such as the diversification of color, facilitates braiding, with good intensity, rigidity, tough
Property, wearability and weatherability, even if still keeping stable performance in environmental changes such as high temperature and humidity.
For this purpose, since carbon fiber is conductive material, the present invention uses the present invention provides a kind of preparation method of carbon fiber wire
Electrostatic spraying makes powdery paints be attached to carbon fiber wire surface, infiltrates when solving with the other materials starching such as epoxy bad
The problem of.
As shown in Figure 1, the preparation method of carbon fiber wire, comprising:
S101, precursor is pre-processed and is heated, obtain the carbon fiber wire first product that temperature is 50-160 DEG C.
The present invention is attached to powdery paints before carbon fiber wire surface using electrostatic spraying, needs to locate precursor in advance
It manages and heats, obtain the carbon fiber wire first product that temperature is 50-160 DEG C.
The pretreatment is there are many embodiment, specifically, as a preferred embodiment, step (1) include: to precursor according to
It is secondary to carry out putting silk, pre-oxidation, low-temperature carbonization, high temperature cabonization and surface treatment, obtain carbon fiber wire first product；By carbon fiber wire
First product is dried, and carbon fiber wire is made to be heated to 50-160 DEG C.The surface treatment is mainly the carbon fiber for crossing high temperature cabonization
It is cleaned, disposes the electrolyte on surface.
The present embodiment after surface treatment, is directly dried in carbon fiber, carbon fiber wire is made to be heated to 50-160
DEG C, then so that powdery paints is attached to carbon fiber wire surface by electrostatic spraying.Carbon fiber wire needs before spraying by temperature itself
Degree is increased to 50-160 DEG C, and powder paint occurs to soften and be melted behind its surface, without generating solidification.After carbon fiber
Phase processing, such as weaves, and after cutting molding, the final shaping when is just allowed to solidify, and meets the diversified demand of weaving.
More preferably, carbon fiber wire is heated to 80-120 DEG C, is allowed to close or slightly above powdery paints melting temperature, guarantees
Powdery paints subsequent technique process can securely, be uniformly adhered to carbon fiber wire surface, and enter the inside of carbon fiber wire.
As another preferred embodiment, step (1) include: precursor is successively carried out put silk, pre-oxidation, low-temperature carbonization,
High temperature cabonization, surface treatment and starching drying, obtain carbon fiber wire first product；Carbon fiber wire first product is carried out at preheating
Reason, makes carbon fiber wire be heated to 50-160 DEG C.
The present embodiment carbon fiber by starching drying after, without receive silk, and directly to carbon fiber wire first product into
Row the pre-heat treatment makes carbon fiber wire be heated to 50-160 DEG C, and powder paint occurs to soften and be melted behind its surface, without
Generate solidification.It in carbon fiber post-production, such as weaves, after cutting molding, the final shaping when is just allowed to solidify, and meets spinning
The diversified demand knitted.
More preferably, carbon fiber wire is heated to 80-120 DEG C, is allowed to close or slightly above powdery paints melting temperature, guarantees
Powdery paints subsequent technique process can securely, be uniformly adhered to carbon fiber wire surface, and enter the inside of carbon fiber wire.
Carbon fiber wire carries out drying or the pre-heat treatment, can be carried out by infra red heating device or hot air circulation equipment,
Infrared heating method can be electric heating, gas heating, and catalytic pyrolysis of natural gas heats, but not limited to this.Preferably, described
Infra red heating device is the infrared baker or drying tunnel that catalytic pyrolysis of natural gas generates, and plays ideal energy-saving effect, and can have
The heating of effect and temperature control guarantee that the temperature of carbon fiber wire is steadily within preset range, to guarantee that powdery paints sprays
It is melted after being coated in its surface, without generating solidification.
S102, the surface that powdery paints is coated in the carbon fiber wire first product by electrostatic spraying, and heat completion
Solidification or semi-solid preparation.
The powdery paints is thermosetting powder coating, is being dried using thermoset synthetic resin as film forming matter
Resin first melts in journey, then the insoluble hard film of insoluble quality is solidified into after being chemically crosslinked.Preferably, the powdery paints
Select one of polyester powder coating, polyester epoxy mixed powder coating, pure epoxy powdery paints, acrylic acid powder coatings
Or it is a variety of.The paint film appearance that the powdery paints is formed is rich and varied, mechanical performance and excellent corrosion resistance.
The present invention selects thermosetting powder coating, and manufactured carbon fiber wire can be applicable in varying environment, even if relatively more severe
Environment (high temperature and humidity), be also able to maintain performance stablize.Peripheral temperature is high again, which will not be soft as thermoplasticity film
Change, and can only decompose.And the prior art utilizes the thermoplastic resin for being, when in use, with temperature change, carbon
Changes will occur for the intensity and surface property of fiber, causes performance unstable.
Moreover, because resin used by thermosetting powder coating is the lower prepolymer of the degree of polymerization, molecular weight is lower, institute
It is preferable with the levelability of film, have it is preferable decorative, and low molecular weight prepolymer it is cured after, netted friendship can be formed
The macromolecular of connection, thus film has preferable anti-corrosive properties and mechanical performance.
Preferably, the powdery paints selects pure epoxy powdery paints.Pure epoxy powdery paints has excellent and carbon fiber
Tie up bonding force, anticorrosive property, hardness, flexibility and the impact strength of silk.
Preferably, the powdery paints selects polyester powder coating.The weatherability of polyester powder coating, ultraviolet-resistant performance
It is excellent, polar group is had additionally, due to polyester resin, so powder utilization is high, yellowing is not easy in solidification process, glossiness is high, stream
Levelling is good, and paint film is plentiful, of light color, thus has decorative well.
Preferably, the powdery paints selects polyester or acrylic acid powder coatings, has excellent weatherability, protects color
Property, stain resistance, appearance of film are excellent, and decorative effect is strong.
The prior art is all the strength and stiffness for needing to use nanoreinforcement material to improve carbon fiber, and structure is complicated, system
It is also complicated to make technique, higher cost.Moreover, powdery paints is coated on nanoreinforcement material, and the ontology of not the carbon fiber, mesh
Be enhance the strength and stiffness of carbon fiber, cannot achieve the diversification of carbon fibre appearance color in this way.And the purpose of the present invention
Be can by be coated with the carbon fiber wire that powdery paints is fully cured go production various colors carbon fiber, so as to the later period weave and compile
It knits.To user more to select on color.And it is pre- to can be used as a kind of substitution for the carbon fiber wire of the coating of semi-solid preparation
Leaching material, later period molding, can process or spray at higher temperatures the various coating of the hot setting of higher performance.
Moreover, epoxy resin is used although to have a very strong tensile strength as carbon fiber made of prepreg at present, but by
It is more crisp in it, it is then excessively poor in shock resistance.It is extraordinary using having for carbon fiber product made by the present invention
Toughness.
Since the filament diameter of carbon fiber wire is 5-20 μm or so, and the carbon content of carbon fiber is 90% or more, therefore, this
The solidification temperature of invention powdery paints is 70-200 DEG C, and average grain diameter is 1-20 μm, powdery paints can be enable uniform in this way
Be coated in carbon fiber wire surface.If the partial size of powdery paints, less than 1 μm, production efficiency is low during powder production,
The phenomenon that conglomeration is easy to appear when spraying.If the partial size of powdery paints is greater than 20 μm, thicker than carbon fiber wire, it is not easy to
The film of surface formation uniform thickness.
Preferably, the powdery paints is low temperature cured powder coating, and solidification temperature is 70-160 DEG C, is not influencing carbon fiber
Under the premise of itself performance for tieing up silk, so that powder paint is able to maintain molten condition above carbon fiber, without having generated
All solidstate.
Preferably, the average grain diameter of the powdery paints is 1-3 μm, guarantees that powdery paints uniform can be coated in
On each carbon fiber wire, it is able to achieve on the carbon fiber wire of 5-20 μ m diameter and forms that thickness is consistent and uniform film, reach
To uniform coloring effect.
Preferably, the powdery paints be coated in the carbon fiber wire first product surface with a thickness of 2-5 μm.Because of carbon
The fiber later period there are also techniques such as weaving braidings, if 5 μm of thickness G T.GT.GT of powdery paints coating, it may occur that the problem of film cracking, nothing
Method forms the effect of good bonding.Moreover, cost also can be excessively high.If 2 μm of thickness < of powdery paints coating, in practical spraying
It is then difficult to realize in the process, cost is excessively high.More preferably, powdery paints is coated in the thickness on the surface of the carbon fiber wire first product
It is 2-3 μm.
In addition, number of the powder paint on carbon fiber wire first product surface is one or many, the powder
Coating is transparent powder paint or colored powder coating.The present invention can be with transparent or coloured powdery paints, substitution
Sizing agent realizes the coloring to carbon fiber wire.Alternatively, traditionally after sizing process, the spraying of powdery paints can also be carried out.One
As in the case of, can also can choose with the colored powdery paints of direct spraying and first spray a clear bottom powder, then be coated with again
The powdery paints of color, paints to carbon fiber.
On the other hand, the carbon fiber wire first product after spraying can by infra red heating device or hot air circulation equipment into
Row heating, completes solidification.Infrared heating method can be electric heating, gas heating, and catalytic pyrolysis of natural gas heats, but unlimited
In this.Preferably, the infra red heating device is the infrared baker or drying tunnel that catalytic pyrolysis of natural gas generates, and is played ideal
Energy-saving effect, and can effectively heat up and temperature control, guarantee that the temperature of carbon fiber wire is steadily within preset range, thus
Guarantee that powdery paints melts rapidly and starts levelling solidification.
To sum up, the carbon fiber wire after drying heating/preheating enters spray room, the powder for being 1-20 μm by average grain diameter with spray gun
Coating is sprayed on carbon fiber wire surface.Powdery paints can be attracted to carbon fiber wire surface under the action of electrostatic.Due to carbon
Fiber filament is to be heated, and the powdery paints in spraying can soften, and is bonded in carbon fiber wire surface, when spraying, needs to control film
Thickness, the carbon fiber wire after spraying enter curing process, and solidification temperature is 130-160 DEG C, and powdery paints melts rapidly simultaneously herein
Start levelling solidification, after 3-5 minutes, completes solidification.
Carbon fiber wire after spraying has various colors, can further be made into the carbon fiber of various decorative patterns
Cloth is used for further processing.Moreover, can be easy lousiness etc. to avoid carbon fiber after powder paint is handled and ask
Topic.
S103, the powdery paints after solidification or semi-solid preparation is cooled down, obtains carbon fiber wire finished product after receiving silk winding.
Solidify or semi-solid preparation after powdery paints be cooled to room temperature, form the form of solid, carbon fiber can be improved
Intensity, rigidity, toughness, wearability and weatherability.Gained carbon fiber wire finished product can save under room temperature, and can grow
Time saves the phenomenon that without solidifying.
Correspondingly, the invention also discloses a kind of carbon fiber wires made of above-mentioned preparation method.The carbon fiber wire
Structure is simple, can save for a long time at room temperature, and performance is stablized, and is free of VOCs, is environment-friendly products.
It should be noted that the method for preparing carbon fiber wire is same as above, details are not described herein.
With specific embodiment, the present invention is further explained below
Embodiment 1
(1) precursor is successively carried out putting silk, pre-oxidation, low-temperature carbonization, high temperature cabonization, the carbon fiber that high temperature cabonization is crossed into
Row cleaning, disposes the electrolyte on surface；
(2) the infrared baker or drying tunnel generated by catalytic pyrolysis of natural gas makes carbon fiber wire be heated to 100 DEG C；
(3) carbon fiber wire after drying heating/preheating enters spray room, by average grain diameter is 1 μm coloured with spray gun
Polyester powder coating is sprayed on carbon fiber wire surface, and the film thickness for controlling spraying is 2 μm, effect of the powdery paints in electrostatic
Under, it is attracted to 100 DEG C of carbon fiber wire surface, powdery paints softens；Wherein, the powdery paints is polyester powder painting
Material；
(4) carbon fiber wire after spraying enters the infrared baker or drying tunnel of catalytic pyrolysis of natural gas generation, infrared baker
Or the setting temperature of drying tunnel is 160 DEG C, and powdery paints melts rapidly herein and starts levelling solidification, after 3 minutes,
Complete solidification.
(5) powdery paints after solidification is cooled down, obtains carbon fiber wire finished product after receiving silk winding.
Embodiment 2
(1) precursor is successively carried out putting silk, pre-oxidation, low-temperature carbonization, high temperature cabonization, the carbon fiber that high temperature cabonization is crossed into
Row cleaning, disposes the electrolyte on surface；
(2) the infrared baker or drying tunnel generated by catalytic pyrolysis of natural gas makes carbon fiber wire be heated to 100 DEG C；
(3) carbon fiber wire after drying heating/preheating enters spray room, by average grain diameter is 2 μm transparent poly- with spray gun
Ester powder paint on carbon fiber wire surface, and control spraying film thickness be 3 μm, powdery paints under the action of electrostatic,
It is attracted to 100 DEG C of carbon fiber wire surface, powdery paints softens；Wherein, the powdery paints is the mixing of polyester epoxy
Type powdery paints；
(4) carbon fiber wire after spraying enters the infrared baker or drying tunnel of catalytic pyrolysis of natural gas generation, infrared baker
Or the setting temperature of drying tunnel is 160 DEG C, then with spray gun by average grain diameter is 3 μm of coloured powder paint in carbon fiber
It ties up on silk table face, powdery paints melts rapidly herein and starts levelling solidification, after 4 minutes, completes solidification.
(5) powdery paints after solidification is cooled down, obtains carbon fiber wire finished product after receiving silk winding.
Embodiment 3
(1) precursor is successively carried out putting silk, pre-oxidation, low-temperature carbonization, high temperature cabonization, the carbon fiber that high temperature cabonization is crossed into
Row cleaning, disposes the electrolyte on surface；
(2) the infrared baker or drying tunnel generated by catalytic pyrolysis of natural gas makes carbon fiber wire be heated to 110 DEG C；
(3) carbon fiber wire after drying heating/preheating enters spray room, by average grain diameter is 3 μm coloured with spray gun
Epoxide powder coating is sprayed on carbon fiber wire surface, and the film thickness for controlling spraying is 4 μm, effect of the powdery paints in electrostatic
Under, it is attracted to 110 DEG C of carbon fiber wire surface, powdery paints softens；Wherein, the powdery paints is pure epoxy powder
Coating；
(4) carbon fiber wire after spraying enters the infrared baker or drying tunnel of catalytic pyrolysis of natural gas generation, infrared baker
Or the setting temperature of drying tunnel is 160 DEG C, then with spray gun by average grain diameter is 4 μm of coloured powder paint in carbon fiber
It ties up on silk table face, powdery paints melts rapidly herein and starts levelling solidification, after 1 minute, completes semi-solid preparation.
(5) powdery paints after semi-solid preparation is cooled down, obtains carbon fiber wire finished product after receiving silk winding.
Embodiment 4
(1) precursor is successively carried out putting silk, pre-oxidation, low-temperature carbonization, high temperature cabonization, surface treatment and starching drying；
(2) the infrared baker or drying tunnel generated by catalytic pyrolysis of natural gas makes carbon fiber wire be heated to 50 DEG C；
(3) carbon fiber wire after drying heating/preheating enters spray room, the transparent propene for being 5 μm by average grain diameter with spray gun
Sour powder paint on carbon fiber wire surface, and control spraying film thickness be 4 μm, powdery paints under the action of electrostatic,
It is attracted to 50 DEG C of carbon fiber wire surface, powdery paints softens；Wherein, the powdery paints is acrylic clear powder painting
Material；
(4) carbon fiber wire after spraying enters the infrared baker or drying tunnel of catalytic pyrolysis of natural gas generation, infrared baker
Or the setting temperature of drying tunnel is 150 DEG C, and powdery paints melts rapidly herein and starts levelling solidification, after 5 minutes,
Complete solidification.
(5) powdery paints after solidification is cooled down, obtains carbon fiber wire finished product after receiving silk winding.
Embodiment 5
(1) precursor is successively carried out putting silk, pre-oxidation, low-temperature carbonization, high temperature cabonization, surface treatment and starching drying；
(2) the infrared baker or drying tunnel generated by catalytic pyrolysis of natural gas makes carbon fiber wire be heated to 70 DEG C；
(3) carbon fiber wire after drying heating/preheating enters spray room, by average grain diameter is 3 μm coloured with spray gun
Polyester powder coating is sprayed on carbon fiber wire surface, and the film thickness for controlling spraying is 5 μm, effect of the powdery paints in electrostatic
Under, it is attracted to 100 DEG C of carbon fiber wire surface, powdery paints softens；Wherein, the powdery paints is polyester powder painting
The mixture of material, acrylic acid powder coatings；
(4) carbon fiber wire after spraying enters the infrared baker or drying tunnel of catalytic pyrolysis of natural gas generation, infrared baker
Or the setting temperature of drying tunnel is 150 DEG C, and powdery paints melts rapidly herein and starts levelling solidification, after 5 minutes,
Complete solidification.
(5) powdery paints after solidification is cooled down, obtains carbon fiber wire finished product after receiving silk winding.
Carbon fiber wire obtained by embodiment 1-5 is done into technology detection, as a result as follows:
In conclusion then the present invention melts powdery paints first by powder paint on carbon fiber wire surface, without
Solidification is generated, is then cooled to room temperature, forms the form of solid.Gained finished product in this way can save under room temperature, and
The phenomenon that can saving for a long time without solidifying.
The present invention selects thermosetting powder coating, after thermosetting powder coating is sprayed on carbon fiber wire surface, Ke Yizhi
It connects and paints in carbon fiber, and intensity, rigidity, toughness, wearability and the weatherability of carbon fiber can be improved.Moreover, the present invention passes through
Electrostatic spraying is selected, the type and partial size of powdery paints are limited, so that all realizing the painting of powdery paints on each carbon fiber wire
It covers, and reaches uniform coloring effect, meet the needs of textile industry.
The present invention use powder paint, powdery paints be it is solid-state like, solvent-free, 100% solid content can use electrostatic
The method of spraying is constructed, and construction method is simplified.
The present invention uses powdery paints, since powdery paints is solvent-free, does not contain VOCs, is environment-friendly type coating, is manufacturing
With not can cause environmental pollution in work progress；Since powdery paints is 100% solid content, use can be recycled, will not be produced
Raw waste；Since powdery paints does not contain solvent, the fire safety demands of manufacture and construction environment are reduced.
The present invention uses powdery paints, can be with rapid curing, and production efficiency is compared with liquid coating height.
Powdery paints of the invention is attached to the film formed behind carbon fiber wire first product surface with a thickness of 2-5 μm, so as to
Good bond effect can be formed during the weaving braiding in later period, avoids the problem that film cracking.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of preparation method of carbon fiber wire characterized by comprising
(1) precursor is pre-processed and is heated, obtain the carbon fiber wire first product that temperature is 50-160 DEG C；
(2) by powdery paints by electrostatic spraying be coated in the carbon fiber wire first product surface, and heat completion solidification or
Person's semi-solid preparation；
(3) it will solidify or the powdery paints of semi-solid preparation cool down, obtain carbon fiber wire finished product after receiving silk winding；
The powdery paints is thermosetting powder coating, and solidification temperature is 70-200 DEG C, and average grain diameter is 1-20 μm.
2. the preparation method of carbon fiber wire as described in claim 1, which is characterized in that the powdery paints is low-temperature setting powder
Last coating, solidification temperature are 70-160 DEG C, and average grain diameter is 1-3 μm；
The filament diameter of the carbon fiber wire first product is 5-20 μm.
3. the preparation method of carbon fiber wire as claimed in claim 2, which is characterized in that the powdery paints selects polyester powder
One of coating, polyester epoxy mixed powder coating, pure epoxy powdery paints, acrylic acid powder coatings are a variety of.
4. the preparation method of carbon fiber wire as described in claim 1, which is characterized in that step (1) includes:
Precursor is successively carried out to put silk, pre-oxidation, low-temperature carbonization, high temperature cabonization and surface treatment, obtain carbon fiber wire just at
Product；
Carbon fiber wire first product is dried, carbon fiber wire is made to be heated to 50-160 DEG C.
5. the preparation method of carbon fiber wire as described in claim 1, which is characterized in that step (1) includes:
Precursor is successively carried out to put silk, pre-oxidation, low-temperature carbonization, high temperature cabonization, surface treatment and starching drying, obtains carbon fiber
Tie up silk first product；
The pre-heat treatment is carried out to carbon fiber wire first product, carbon fiber wire is made to be heated to 50-160 DEG C.
6. the preparation method of carbon fiber wire as described in claim 4 or 5, which is characterized in that the powdery paints is coated in institute
State the surface of carbon fiber wire first product with a thickness of 2-5 μm.
7. the preparation method of carbon fiber wire as claimed in claim 6, which is characterized in that the carbon fiber wire first product passes through red
External heat equipment or hot air circulation equipment carry out drying and processing；
The carbon fiber wire first product carries out the pre-heat treatment by infra red heating device or hot air circulation equipment；
By infra red heating device, perhaps hot air circulation equipment is heated completion solidification or half to the carbon fiber wire first product
Solidification.
8. the preparation method of carbon fiber wire as claimed in claim 7, which is characterized in that the infra red heating device is natural gas
The infrared baker or drying tunnel that catalytic pyrolysis generates.
9. the preparation method of carbon fiber wire as described in claim 1, which is characterized in that the powder paint is in carbon fiber
The number on silk first product surface be it is one or many, the powdery paints is transparent powder paint or colored powder coating.
10. a kind of carbon fiber wire, which is characterized in that it is made of the described in any item preparation methods of claim 1-9.
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| CN112695527A (en) * | 2020-12-07 | 2021-04-23 | 武汉格罗夫氢能汽车有限公司 | Method for manufacturing carbon fiber product for fuel cell hydrogen energy automobile |
| CN116041081A (en) * | 2022-12-28 | 2023-05-02 | 湖州幄肯中欣新能源科技有限公司 | Carbon fiber barrel composite material and preparation method thereof |
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