CN112482027B - Carbon fiber surface treating agent and treating method - Google Patents
Carbon fiber surface treating agent and treating method Download PDFInfo
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- CN112482027B CN112482027B CN202011310397.6A CN202011310397A CN112482027B CN 112482027 B CN112482027 B CN 112482027B CN 202011310397 A CN202011310397 A CN 202011310397A CN 112482027 B CN112482027 B CN 112482027B
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Abstract
The invention discloses a carbon fiber surface treating agent and a treatment method, wherein the carbon fiber surface treating agent consists of glyceryl oleate, a toughening agent, a penetrating agent, a softening agent, a dispersing agent and deionized water, the carbon fiber raw yarn is treated by the treating agent, the bundling performance of the carbon fiber can be greatly improved, the treated carbon fiber is used for preparing 2.5D woven, 3D knitted, punctured, needled or sewn three-dimensional fabric, the phenomena of hairiness, disordered yarn, broken ends and the like are not easy to generate, and the preparation efficiency and the forming quality of the carbon fiber three-dimensional fabric are greatly reduced.
Description
Technical Field
The invention relates to the technical field of carbon fibers, in particular to a carbon fiber surface treating agent and a treating method.
Background
With the wide application of the carbon fiber reinforced composite material in the fields of aerospace, transportation, civil construction, biomedical use, sports equipment and the like, the composite material is required to have high damage tolerance and reliability, and simultaneously, higher requirements are also provided for the structural integrity and the conformability of the composite material.
The three-dimensional fabric is widely applied to composite materials due to the advantages of good overall performance, strong conformability and the like. The preparation of the three-dimensional fabric is to apply action to the fiber bundles to enable the fiber bundles to be interwoven in space according to a specific rule to form the fabric with a designed space three-dimensional shape. However, the fibers represented by high-strength and high-modulus series carbon fibers are mostly brittle materials, the fiber bundling performance is poor, phenomena such as hairiness, yarn disorder, broken ends and the like are easily generated in the preparation process of the three-dimensional fabric, and the preparation efficiency and the forming quality of the three-dimensional fabric are greatly reduced.
The existing carbon fiber surface treatment methods are all directed at resin matrix composite materials, namely, a series of physical and chemical reactions occur on the surface of carbon fibers, and the complexity of the surface morphology and the content of polar groups are increased, so that the interface performance of the carbon fibers and matrix resin is improved, and the purpose of improving the overall mechanical performance of the composite material is achieved, for example:
chinese patent CN110592927A discloses a surface treatment method of carbon fibers, which describes the problem of poor interface cohesiveness between carbon fibers and matrix resin, and proposes to perform low-temperature plasma bombardment treatment on selected carbon fibers; adding the treated carbon fiber into a ketone-containing solution for soaking treatment; and repeatedly cleaning the soaked carbon fibers by using deionized water. The method can obviously increase oxygen-containing groups on the surface of the carbon fiber, increase the roughness of the surface of the carbon fiber and improve the interface cohesiveness of the carbon fiber and matrix resin.
Chinese patent CN110777526A discloses a carbon fiber surface treatment device. The carbon on the surface of the carbon fiber in the device is activated, and the periphery of the carbon fiber after rapid temperature rise is wrapped by the solution, so that the solution prevents the excessive oxidation of the carbon fiber by air, the chemical bonds between water or other solvent molecules in the solution are broken, active oxygen-containing functional groups are generated on the surface of the carbon fiber, the inertia of the surface of the carbon fiber can be improved, and the combination of the carbon fiber and resin is facilitated.
Chinese patent CN109868654A discloses a water-based epoxy sizing agent and a preparation method thereof. The invention overcomes the problem of solvent caused by large viscosity in the traditional emulsifying epoxy process, and the prepared sizing agent has the particle size of below 200nm and can be uniformly spread on the surface of carbon fiber. The interlaminar shear strength of the epoxy composite material prepared from the carbon fiber sized by the sizing agent can reach more than 70 MPa. However, at present, the water-soluble sizing agent has less resin and poorer emulsion stability compared with the emulsion sizing agent, and the water-soluble sizing agent is a problem to be solved.
Disclosure of Invention
The invention provides a carbon fiber surface treating agent and a carbon fiber surface treating method, aiming at solving the problems that the prior carbon fiber bundling performance is poor, and phenomena such as hairiness, yarn disorder, end breakage and the like are easily generated in the preparation process of a three-dimensional fabric, so that the preparation efficiency of the three-dimensional fabric is low and the molding quality is poor.
The technical scheme adopted by the invention is as follows:
the carbon fiber surface treating agent is prepared from the following components in percentage by mass:
the balance of deionized water.
Preferably, the toughening agent is at least one of methyl methacrylate-butadiene-styrene copolymer, ethylene-vinyl acetate copolymer or di-n-octyl phthalate.
Preferably, the penetrating agent is at least one of fatty alcohol-polyoxyethylene ether or di-sec-octyl maleate sodium sulfonate.
Preferably, the softening agent is glycerol or modified silicone oil.
Preferably, the dispersant is at least one of hydroxyethyl cellulose, hydroxymethyl cellulose or polyvinyl alcohol.
A method for surface treatment of carbon fibers using the carbon fiber surface treatment agent as described above, comprising:
A. preparation of surface treating agent
1) Mixing glyceryl oleate, a toughening agent, a penetrating agent, a softening agent, a dispersing agent and deionized water according to a set proportion to obtain a mixed solution;
2) Carrying out ultrasonic dispersion treatment on the mixed solution obtained in the step 1) for 10-30 min to prepare a surface treating agent with the viscosity of 300-1000 mPa & s;
B. treating the carbon fiber with the surface treating agent obtained in the step A
Leading out carbon fiber raw yarn from a creel, drawing the carbon fiber raw yarn at a drawing speed of 0.01-0.45 m/s by a drawing device, sequentially passing through a glue dipping tank with a glue dipping roller, a squeezing roller, a first drying channel, a second drying channel and the drawing device which are filled with the surface treating agent obtained in the step A, and finally finishing winding in a winding device, wherein the method specifically comprises the following process steps:
1) Sizing: in a dipping tank, carbon fibers are dipped for a certain time by a dipping roll to ensure that a surface treating agent uniformly permeates into carbon fiber raw yarns;
2) Rolling: removing redundant slurry by squeezing of a squeezing roller, and controlling the sizing amount;
3) And (3) heat treatment: in the heat treatment step, the surface treatment agent is combined with the carbon fiber base yarn through high-temperature drying;
4) Coiling: and finishing rolling in a rolling device, and sealing the finished product by using a waterproof film.
The surface treating agent can be uniformly and quickly infiltrated into the fiber by the extrusion of a dipping roller; the excessive sizing amount or the excessive sizing amount affects the bundling performance of the fibers, the excessive surface treating agent can be uniformly extruded out of the fibers by using the sizing roller, the sizing amount can be controlled by adjusting the pressure of the sizing roller and the traction speed of the fibers, the operation is convenient, and the process controllability is high; through high-temperature drying, the-COOR functional group on the surface treating agent and the-COOR functional group of the carbon fiber surface sizing agent generate chemical crosslinking and are firmly combined on the fiber; the waterproof film is sealed to prevent secondary pollution.
Preferably, in the sizing step, the time for the carbon fiber to pass through the dip tank is 10 to 30 seconds. Experiments have shown that the surface treatment agent can penetrate better into the fibers during this period of time, and the treatment efficiency decreases over time.
Preferably, in the rolling step, the sizing content of the rolled carbon fiber is 3-10% of the mass of the carbon fiber. Experiments prove that when the content of the surface treating agent is 3-10% of the mass of the carbon fiber, the fiber bundling performance is optimal.
Preferably, in the heat treatment step, the drying temperature of the first drying channel is 100-130 ℃, and the time for the carbon fiber to pass through the first drying channel is 30-60 s; the drying temperature of the second drying channel is 130-170 ℃, and the time for the carbon fiber to pass through the second drying channel is 30-60 s. Experiments prove that by adopting the process, the surface treating agent can be well combined in the fiber, and the treatment efficiency is reduced after the process is used for a long time.
The carbon fiber treated by the method can be used for preparing 2.5D woven, 3D knitted, punctured, needled or stitched three-dimensional fabrics. The phenomena of hairiness, yarn disorder, end breakage and the like are not easy to generate in the process of preparing the three-dimensional fabric, and the preparation efficiency and the forming quality of the three-dimensional fabric are greatly reduced and improved.
The invention has the beneficial effects that:
1. according to the carbon fiber surface treating agent, the olein is compounded with the toughening agent, the penetrating agent, the softening agent, the dispersing agent and the deionized water, wherein the olein contains a-COOR functional group, the existing surface sizing agent for the three-dimensional woven carbon fiber also contains the-COOR functional group, and according to the principle of 'similarity and intermiscibility', when the chemical structure between the fiber and the treating agent, particularly the polarity of main groups is similar, the treating agent and the carbon fiber have higher binding force; the adhesive action of the treating agent enhances the breaking strength and the hooking strength of the carbon fiber, the phenomena of hairiness, disordered yarns, broken ends and the like are not easy to generate in the preparation process, the static electricity among the fibers can be eliminated, the compliance of the fibers is improved, and the bundling performance is improved. The olein is compatible with the toughening agent, the penetrating agent, the softening agent and the dispersing agent, so that the treating agent can be uniformly spread on the surface of the carbon fiber, the binding force between the treating agent and the carbon fiber is further enhanced, and the bundling performance is improved.
2. The carbon fiber is treated by adopting a series of process methods of sizing, rolling and heat treatment, in the sizing step, the treating agent is uniformly impregnated into the carbon fiber raw yarn, the wettability of the carbon fiber raw yarn is enhanced, the surface of the carbon fiber raw yarn is alkaline, the roughness of the surface of the fiber is increased, the specific surface area is increased, and the number of active functional groups on the surface of the carbon fiber is increased; in the rolling step, the content of the treating agent is reasonably controlled, the permeation degree of the treating agent to the fiber is controlled, so that the relative sliding capacity of partial regions in the fiber is kept, and the strong breaking elongation of the treated fiber is reliably ensured; in the drying step, the carbon fiber surface treating agent and the carbon fiber raw yarn sizing agent are mutually acted and superposed to generate stronger bonding and hooking strength under the action of intermolecular van der Waals force, electrostatic coulomb force and other secondary bond forces and chemical bond main bond forces.
3. Under the double actions of the treating agent and the treating process, the free ends of the single fibers on the surfaces of the fibers are tightly attached to the yarn body, the surfaces of the fibers are smooth, joints between adjacent fibers can be reduced in a three-dimensional fabric process, the fiber bundling performance is improved, the logistics structure performance of the fibers is improved, the breaking strength of the fibers is improved, and the phenomena of hairiness, yarn disorder, end breakage and the like in the preparation process are reduced.
4. The treatment method has the advantages of simple steps, easy control of process parameters, high treatment efficiency and reliable quality.
Drawings
FIG. 1 is a process flow chart for treating carbon fibers with the carbon fiber surface treatment agent of the present invention.
FIG. 2 is a 200-fold electron micrograph of a T800-6K carbon fiber base yarn used in example 1.
FIG. 3 is a 200-fold electron micrograph of T800-6K carbon fibers treated with the surface treatment agent obtained in example 1.
FIG. 4 is a 200-fold electron micrograph of the M40J-6K carbon fiber base yarn used in example 3.
FIG. 5 is a 200-fold electron micrograph of M40J-6K carbon fibers treated with the surface treatment agent obtained in example 3.
Illustration of the drawings: 1-creel, 2-base yarn, 3-dipping tank, 4-dipping roller, 5-squeezing roller, 6-first drying channel, 7-second drying channel, 8-traction device and 9-coiling device.
Detailed Description
For better understanding of the present invention, the following examples are given for further illustration of the present invention, but the present invention is not limited to the following examples.
The first embodiment is as follows:
A. preparation of surface treating agent
1) Mixing 1.5kg of glyceryl oleate solution, 0.3kg of ethylene-vinyl acetate copolymer, 0.3kg of sodium di-sec-octyl maleate sulfonate, 0.2kg of modified glycerol, 0.5kg of polyvinyl alcohol and 7.2kg of deionized water to obtain a mixed solution;
2) Carrying out ultrasonic dispersion treatment on the mixed solution obtained in the step 1) for 20min to obtain a carbon fiber surface treating agent solution with the viscosity of 450mPa & s;
B. treating the carbon fiber with the surface treating agent obtained in the step A
Referring to fig. 1, a T800-6K carbon fiber base yarn 2 is led out from a creel 1, is drawn at a drawing speed of 0.2m/s by a drawing device 8, sequentially passes through a gumming groove 3 with a gumming roller 4 filled with the surface treating agent obtained in the step A, two squeezing rollers 5, a first drying tunnel 6, a second drying tunnel 7 and the drawing device 8, and is finally wound in a winding device 9, and the method specifically comprises the following process steps:
1) Sizing: in a dipping tank, carbon fibers are dipped for 15s by dipping roll;
2) Rolling: removing redundant sizing agent by the extrusion of a sizing roller to ensure that the content of the surface treating agent is 5 percent of the mass of the carbon fiber;
3) And (3) heat treatment: the drying temperature of the first drying channel is 120 ℃, and the drying temperature of the second drying channel is 170 ℃; the time for the carbon fiber to pass through the first drying channel is 40s, and the time for the carbon fiber to pass through the second drying channel is 45s;
4) Coiling: and finishing rolling in a rolling device, and sealing the finished product by using a waterproof film.
Intercepting a section of T800-6K carbon fiber raw yarn, and taking a picture by using an electron microscope under the magnification of 200 times to obtain a picture 2; intercepting a section of processed T800-6K carbon fiber, and taking a picture by using an electron microscope under the magnification of 200 times to obtain a picture 3; as can be seen from the comparison between fig. 2 and fig. 3, the bundling performance of the carbon fiber treated by the surface treatment agent is significantly improved.
Example two:
A. preparation of surface treating agent
1) Mixing 0.6kg of glyceryl oleate solution, 0.2kg of di-n-octyl phthalate, 0.4kg of fatty alcohol-polyoxyethylene ether, 0.4kg of sodium di-sec-octyl maleate sulfonate, 0.2kg of modified glycerol, 0.4kg of hydroxyethyl cellulose, 0.4kg of hydroxymethyl cellulose and 7.4kg of deionized water to obtain a mixed solution;
2) Carrying out ultrasonic dispersion treatment on the mixed solution in the step 1) for 15min to obtain a surface treating agent solution with the viscosity of 300mPa & s;
B. treating the carbon fiber with the surface treating agent obtained in the step A
Leading out the T800-6K carbon fiber raw yarn 2 from a creel 1, drawing the raw yarn at a drawing speed of 0.45m/s by a drawing device 8, sequentially passing through a gumming tank 3 with a gumming roller 4, two squeezing rollers 5, a first drying tunnel 6, a second drying tunnel 7 and the drawing device 8 which are filled with the surface treating agent obtained in the step A, and finally finishing winding in a winding device 9, wherein the method specifically comprises the following process steps:
1) Sizing: in a dipping tank, carbon fibers are dipped for 10s by a dipping roll;
2) Rolling: removing redundant sizing agent by the extrusion of a sizing roller to ensure that the content of the surface treating agent is 3 percent of the mass of the carbon fiber;
3) And (3) heat treatment: the drying temperature of the first drying channel is 130 ℃, and the drying temperature of the second drying channel is 165 ℃; the time for the carbon fiber to pass through the first drying channel is 30s, and the time for the carbon fiber to pass through the second drying channel is 35s;
4) Coiling: and finishing rolling in a rolling device, and sealing the finished product by using a waterproof film.
Example three:
A. preparation of surface treating agent
1) Mixing 2kg of glyceryl oleate solution, 0.5kg of methyl methacrylate-butadiene-styrene copolymer, 0.4kg of fatty alcohol-polyoxyethylene ether, 0.2kg of glycerol, 0.4kg of hydroxyethyl cellulose, 0.2kg of hydroxymethyl cellulose and 6.3kg of deionized water to obtain a mixed solution;
2) Carrying out ultrasonic dispersion treatment on the mixed solution in the step 1) for 20min to obtain a carbon fiber surface treating agent solution with the viscosity of 700mPa & s;
B. treating the carbon fiber with the surface treating agent obtained in the step A
Leading out the M40J-6K carbon fiber raw yarn 2 from a creel 1, drawing the yarn at a drawing speed of 0.4M/s by a drawing device 8, sequentially passing through a glue dipping tank 3 with a glue dipping roller 4, two squeezing rollers 5, a first drying tunnel 6, a second drying tunnel 7 and the drawing device 8, which are filled with the surface treating agent obtained in the step A, and finally finishing winding in a winding device 9, wherein the method specifically comprises the following process steps:
1) Sizing: in a dipping tank, carbon fibers are dipped for 10s by a dipping roll;
2) Rolling: removing redundant sizing agent by the extrusion of a sizing roller to ensure that the content of the surface treating agent is 8 percent of the mass of the carbon fiber;
3) And (3) heat treatment: the drying temperature of the first drying channel is 130 ℃, and the drying temperature of the second drying channel is 160 ℃; the time for the carbon fiber to pass through the first drying channel is 50s, and the time for the carbon fiber to pass through the second drying channel is 55s;
4) Coiling: and finishing rolling in a rolling device, and sealing the finished product by using a waterproof film.
Intercepting a section of M40J-6K carbon fiber raw yarn, and taking a picture by using an electron microscope at an amplification of 200 times to obtain a picture 4; intercepting a section of the processed M40J-6K carbon fiber, and taking a picture by using an electron microscope at a magnification of 200 times to obtain a picture 5; as can be seen from the comparison between fig. 4 and fig. 5, the bundling performance of the carbon fiber treated by the surface treatment agent is significantly improved.
Example four:
A. preparation of surface treating agent
1) Mixing 3.5kg of glyceryl oleate, 0.3kg of di-n-octyl phthalate, 0.2kg of fatty alcohol-polyoxyethylene ether, 0.2kg of sodium di-sec-octyl maleate sulfonate, 0.3kg of modified glycerol, 0.5kg of hydroxyethyl cellulose and 5.0kg of deionized water to obtain a mixed solution;
2) Carrying out ultrasonic dispersion treatment on the mixed solution obtained in the step 1) for 20min to obtain a carbon fiber surface treating agent solution with the viscosity of 1000mPa & s;
B. treating the carbon fiber with the surface treating agent obtained in the step A
Leading out the M40J-6K carbon fiber raw yarn 2 from a creel 1, drawing the raw yarn at a drawing speed of 0.2M/s by a drawing device 8, sequentially passing through a gumming groove 3 with a gumming roller 4, two squeezing rollers 5, a first drying tunnel 6, a second drying tunnel 7 and the drawing device 8 which are filled with the surface treating agent obtained in the step A, and finally finishing winding in a winding device 9, wherein the method specifically comprises the following process steps:
1) Sizing: in a dipping tank, carbon fibers are dipped for 5s by dipping rolls;
2) Rolling: removing redundant sizing agent by the extrusion of a sizing roller to ensure that the content of the surface treating agent is 10 percent of the mass of the carbon fiber;
3) And (3) heat treatment: the drying temperature of the first drying channel is 120 ℃, and the drying temperature of the second drying channel is 150 ℃; the time for the carbon fiber to pass through the first drying channel is 60s, and the time for the carbon fiber to pass through the second drying channel is 60s;
4) Coiling: and finishing rolling in a rolling device, and sealing the finished product by using a waterproof film.
Example five:
A. preparation of surface treating agent
1) Mixing 3.0kg of glyceryl oleate, 0.5kg of methyl methacrylate-butadiene-styrene copolymer, 0.4kg of fatty alcohol-polyoxyethylene ether, 0.2kg of glycerol, 0.4kg of hydroxyethyl cellulose, 0.2kg of hydroxymethyl cellulose and 5.3kg of deionized water to obtain a mixed solution;
2) Carrying out ultrasonic dispersion treatment on the mixed solution obtained in the step 1) for 25min to obtain a carbon fiber surface treating agent solution with the viscosity of 800mPa & s;
B. treating the carbon fiber with the surface treating agent obtained in the step A
Leading out the M40J-6K carbon fiber raw yarn 2 from a creel 1, drawing the yarn at a drawing speed of 0.4M/s by a drawing device 8, sequentially passing through a glue dipping tank 3 with a glue dipping roller 4, two squeezing rollers 5, a first drying tunnel 6, a second drying tunnel 7 and the drawing device 8, which are filled with the surface treating agent obtained in the step A, and finally finishing winding in a winding device 9, wherein the method specifically comprises the following process steps:
1) Sizing: in a dipping tank, carbon fibers are dipped for 8s by dipping rolls;
2) Rolling: removing redundant slurry by extrusion of a squeezing roller to ensure that the content of the surface treating agent is 8 percent of the mass of the carbon fiber;
3) And (3) heat treatment: the drying temperature of the first drying channel is 130 ℃, and the drying temperature of the second drying channel is 160 ℃; the time for the carbon fiber to pass through the first drying channel is 50s, and the time for the carbon fiber to pass through the second drying channel is 50s;
4) Coiling: and finishing rolling in a rolling device, and sealing the finished product by using a waterproof film.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The carbon fiber surface treating agent is characterized by being prepared from the following components in percentage by mass:
1-40% of glyceryl oleate;
1 to 10 percent of toughening agent;
1 to 5 percent of penetrating agent;
1 to 5 percent of softening agent;
1 to 5 percent of dispersant;
the balance of deionized water
The softening agent is glycerol or modified silicone oil;
the dispersant is at least one of hydroxyethyl cellulose, hydroxymethyl cellulose or polyvinyl alcohol;
the carbon fiber surface treating agent is used for treating carbon fiber raw yarns of 2.5D woven, 3D knitted, punctured, needled or sewn three-dimensional fabrics.
2. The carbon fiber surface treatment agent according to claim 1, wherein the toughening agent is at least one of a methyl methacrylate-butadiene-styrene copolymer, an ethylene-vinyl acetate copolymer, or di-n-octyl phthalate.
3. The carbon fiber surface treatment agent according to claim 1, wherein the wetting agent is at least one of fatty alcohol-polyoxyethylene ether or sodium di-sec-octyl maleate sulfonate.
4. A method for surface treatment of a carbon fiber using the carbon fiber surface treating agent as defined in any one of claims 1 to 3, comprising:
A. preparation of surface treating agent
1) Mixing glyceryl oleate, a toughening agent, a penetrating agent, a softening agent, a dispersing agent and deionized water according to a set proportion to obtain a mixed solution;
2) Carrying out ultrasonic dispersion treatment on the mixed solution obtained in the step 1) for 10-30 min to prepare a surface treating agent with the viscosity of 300-1000 mPa & s;
B. treating the carbon fiber with the surface treating agent obtained in the step A
Leading out carbon fiber raw yarn from a creel, drawing the carbon fiber raw yarn at a drawing speed of 0.01-0.45 m/s by a drawing device, sequentially passing through a glue dipping tank with a glue dipping roller, a squeezing roller, a first drying channel, a second drying channel and the drawing device which are filled with the surface treating agent obtained in the step A, and finally finishing winding in a winding device, wherein the method specifically comprises the following process steps:
1) Sizing: in a dipping tank, carbon fibers are dipped for a certain time by a dipping roll to ensure that a surface treating agent uniformly permeates into carbon fiber raw yarns;
2) Rolling: removing redundant slurry by squeezing of a squeezing roller, and controlling the sizing amount;
3) And (3) heat treatment: in the heat treatment step, the surface treatment agent is combined with the carbon fiber base yarn through high-temperature drying;
4) Coiling: and finishing rolling in a rolling device, and sealing the finished product by using a waterproof film.
5. The method according to claim 4, wherein the carbon fiber is passed through the dip tank for 10 to 30 seconds in the sizing step.
6. The method as claimed in claim 4, wherein the sizing content of the rolled carbon fiber is 3-10% of the mass of the carbon fiber in the rolling step.
7. The method according to claim 4, wherein in the heat treatment step, the drying temperature of the first drying tunnel is 100 to 130 ℃, and the time for the carbon fiber to pass through the first drying tunnel is 30 to 60s; the drying temperature of the second drying channel is 130-170 ℃, and the time for the carbon fiber to pass through the second drying channel is 30-60 s.
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| JP2004346462A (en) * | 2003-05-26 | 2004-12-09 | Ge Toshiba Silicones Co Ltd | Fiber treating agent |
| JP4947798B2 (en) * | 2007-12-27 | 2012-06-06 | 竹本油脂株式会社 | Synthetic fiber treatment agent, synthetic fiber treatment method and synthetic fiber |
| CN201512679U (en) * | 2009-09-17 | 2010-06-23 | 北京航空航天大学 | Numerical control carbon fiber sizing device |
| CN103451931B (en) * | 2012-06-04 | 2015-10-21 | 金发科技股份有限公司 | Carbon fiber surface modifier, modified carbon fiber, matrix material and their preparation method |
| CN103147168B (en) * | 2013-03-06 | 2017-06-16 | 常州市灵达化学品有限公司 | A kind of spinning oil and preparation method |
| BR102015025429A2 (en) * | 2015-10-05 | 2018-03-20 | Laboratorios Quimicos E Metrologicos Quimlab Ltda | Composition of polyacrylonitrile / lignin blends for the production of carbon fiber precursor fiber |
| JP6632016B1 (en) * | 2019-07-05 | 2020-01-15 | 竹本油脂株式会社 | Treatment agent for carbon fiber precursor, and carbon fiber precursor |
| CN111206427B (en) * | 2020-03-12 | 2022-09-23 | 金浦新材料股份有限公司 | High-temperature oil agent for polyester industrial yarn and preparation method thereof |
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| 有机溶剂体系中酶法合成单油酸甘油酯的工艺研究;朱启思;《中国优秀博硕士学位论文全文数据库（硕士） 工程科技I辑》;20110315(第3期);第B016-9页 * |
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