CN112341813B - Method for improving damping performance of carbon fiber reinforced tube - Google Patents

Method for improving damping performance of carbon fiber reinforced tube Download PDF

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Publication number
CN112341813B
CN112341813B CN202011379314.9A CN202011379314A CN112341813B CN 112341813 B CN112341813 B CN 112341813B CN 202011379314 A CN202011379314 A CN 202011379314A CN 112341813 B CN112341813 B CN 112341813B
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carbon fiber
prepreg
fiber reinforced
cloth
prepreg cloth
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CN112341813A (en
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姚力军
潘杰
王学泽
顾炜业
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Ningbo Jiangfeng Composite Material Technology Co ltd
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Ningbo Jiangfeng Composite Material Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/06—Polyamides derived from polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2477/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2477/06—Polyamides derived from polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/06—Elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass

Abstract

The invention provides a method for improving the shock absorption and damping performance of a carbon fiber reinforced pipe, which is characterized in that the shock absorption and damping performance of the carbon fiber reinforced pipe is enhanced by carrying out heat treatment on the carbon fiber reinforced pipe for 60-120min at the temperature of 45-60 ℃, so that the carbon fiber reinforced pipe can quickly return to a balanced state under the condition of external stress, and the stability of a frame consisting of the carbon fiber reinforced pipe in the process of transferring goods is effectively enhanced.

Description

Method for improving damping performance of carbon fiber reinforced tube
Technical Field
The invention belongs to the technical field of liquid crystal, relates to a carrying piece of a liquid crystal panel, and particularly relates to a method for improving the damping performance of a carbon fiber reinforced tube.
Background
At present, in the technical field of liquid crystal, various process treatments need to be performed on a liquid crystal panel, and therefore, the liquid crystal panel needs to be conveyed and transported among various process equipment.
The carbon fiber is high-strength and high-modulus fiber with carbon content of more than 90 percent, and is an excellent material for manufacturing high-technology equipment such as aerospace and the like. The carbon fiber has the characteristics of high temperature resistance, friction resistance, electric conduction, heat conduction, corrosion resistance and the like, is fibrous and soft in appearance, can be processed into various fabrics, has high strength and modulus along the fiber axis direction due to the preferred orientation of the graphite microcrystal structure along the fiber axis, and has high specific strength and specific modulus due to the small density of the carbon fiber.
The carbon fiber reinforced composite material is prepared by compounding carbon fibers with resin, metal, ceramic and other materials through processes of die pressing, injection, resin transfer and the like, has high mechanical property and structural stability, and is widely applied to various fields of aerospace, transportation, wind power generation, sports, industrial production and the like. The damping performance of the carbon fiber reinforced composite material has important influence on the dynamic bearing capacity, reliability and safety of an application structure.
The damping mechanism of the composite material is different from that of common metal or alloy materials, and is closely related to the viscoelastic damping of a matrix and fibers, the damping of a fiber/matrix interface, the frictional damping caused by the damage of a composite material microstructure, the nonlinear viscoelastic damping with concentrated local stress, the thermoelastic damping generated by periodic heat flow and other mechanisms respectively.
CN 108036123A discloses a carbon fiber and glass fiber hybrid composite pipe, which uses a carbon fiber bundle reinforced layer as a central layer, and sequentially stacks two or more carbon fiber and glass fiber hybrid tape reinforced layers, one or more glass fiber tape reinforced layers, and one or more carbon fiber tape reinforced layers, wherein the carbon fiber and glass fiber hybrid tape reinforced layers, the glass fiber tape reinforced layers, and the carbon fiber tape reinforced layers are all formed by prepreg tapes formed by prepreg treatment, and the laying angles of the prepreg tapes are 0 ° and 90 ° or 0 °, 30 °, 45 °, 60 °, and 90 ° alternately.
The carbon fiber and glass fiber hybrid composite pipe improves the mechanical property of the composite pipe through the composite addition of carbon fiber and glass fiber, but has higher cost and improves the damping vibration performance of the pipe.
CN 110406194A discloses a damping shock absorption type enhanced carbon fiber composite material, which comprises a reinforced carbon fiber composite sheet and a piezoelectric damping fusible material embedded in the reinforced carbon fiber composite sheet; the reinforced carbon fiber composite sheet is an aluminum alloy sheet coated with a carbon fiber framework, wherein the carbon fiber framework is a reticular fiber felt formed by compositely spinning continuous carbon fibers and cold-sensitive fibers, and the aluminum alloy is Cu-Mg-Al alloy; the piezoelectric damping different melting material is Cu-Zn alloy particles doped with embedded piezoelectric materials, the particle size of the particles is 0.5-5 mu m, and the piezoelectric materials are inorganic piezoelectric materials. The enhanced carbon fiber composite material improves the damping and shock absorption performance of the carbon fiber composite material through the addition of the piezoelectric damping different melting material, but improves the manufacturing cost.
Aiming at the defects of the prior art, a method for enhancing the damping performance of the carbon fiber reinforced tube is needed, so that the stability of the carbon fiber reinforced tube in transferring the liquid crystal panel can be improved.
Disclosure of Invention
The invention aims to provide a method for improving the damping performance of a carbon fiber reinforced pipe, which is simple to operate and can realize the enhancement of the damping performance of the carbon fiber reinforced pipe only through simple process treatment.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps: and (3) carrying out heat treatment on the carbon fiber reinforced pipe at the temperature of 45-60 ℃ for 60-120min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe.
The temperature of the heat treatment is 45 to 60 ℃ and may be, for example, 45 ℃, 48 ℃, 50 ℃, 54 ℃, 56 ℃ or 60 ℃, but is not limited to the recited values, and other values not recited in the numerical range are also applicable. The heat treatment time is 60-120min, for example, 60min, 70min, 80min, 90min, 100min, 110min or 120min, but is not limited to the recited values, and other values not recited in the range of values are also applicable.
According to the invention, the carbon fiber reinforced pipe is subjected to heat treatment for a specific time at a specific temperature, so that the uniformity of resin in the carbon fiber reinforced pipe is optimized, and the aim of reducing damping vibration recovery time is fulfilled.
In particular, the method provided by the invention is particularly suitable for carbon fiber reinforced pipes with special shapes and special compositions.
Preferably, the carbon fiber reinforced pipe is a tapered square pipe.
Preferably, the square tube has a length of 3000-4000mm, for example 3000mm, 3100mm, 3200mm, 3300mm, 3400mm, 3500mm, 3600mm, 3700mm, 3800mm, 3900mm or 4000mm, but is not limited to the values listed, and other values not listed in the numerical range are equally applicable.
Preferably, the cross-sectional length of the large end of the square tube is 65-75mm, for example 65mm, 66mm, 67mm, 68mm, 69mm, 70mm, 71mm, 72mm, 73mm, 74mm or 75mm, but not limited to the values listed, and other values not listed in the range of values are equally applicable; the width is 35-45mm; for example, it may be 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, 44mm or 45mm, but is not limited to the values listed, and other values not listed in the numerical range are also applicable.
Preferably, the cross-sectional length of the small end of the square tube is 60-70mm, such as 60mm, 61mm, 62mm, 63mm, 64mm, 65mm, 66mm, 67mm, 68mm, 69mm or 70mm, but not limited to the values listed, and other values not listed in the range of values are equally applicable; the width is 24-30mm, and can be, for example, 24min, 25min, 26min, 27min, 28min, 29min or 30min, but is not limited to the values listed, and other values not listed in the range of values are also applicable.
Preferably, the preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and then performing pre-tabletting treatment;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting;
(3) And (3) molding the sheet obtained after the tabletting treatment in the step (2) to obtain the carbon fiber reinforced tube.
According to the invention, the pre-tabletting treatment is carried out, then the cutting is carried out, and the tabletting treatment is further carried out, so that the distribution uniformity of resin in the carbon fiber reinforced composite material prepreg cloth arranged in a stacked manner is optimized, and the damping performance of the finally obtained carbon fiber reinforced tube is improved.
Preferably, the pre-tabletting treatment of step (1) has a gauge pressure of 0.2 to 0.3MPa, which may be, for example, 0.2MPa, 0.21MPa, 0.22MPa, 0.23MPa, 0.24MPa, 0.25MPa, 0.26MPa, 0.27MPa, 0.28MPa, 0.29MPa or 0.3MPa, but is not limited to the values listed, and other values not listed within the range of values are equally applicable.
Preferably, the temperature of the pre-tabletting treatment is 30-50 ℃, for example 30 ℃, 35 ℃, 40 ℃, 45 ℃ or 50 ℃, but not limited to the recited values, and other values not recited in the numerical ranges are equally applicable.
Preferably, the pre-tabletting treatment is carried out for a period of 20 to 40s, for example 20s, 25s, 30s, 35s or 40s, but is not limited to the values listed, and other values not listed in the range of values are equally applicable.
Preferably, the pressure gauge of the tabletting process in step (2) is 5-10MPa, for example 5MPa, 6MPa, 7MPa, 8MPa, 9MPa or 10MPa, but is not limited to the values listed, and other values not listed in the numerical range are equally applicable.
Preferably, the temperature of the tabletting process of step (2) is 80 to 120 ℃, for example 80 ℃, 90 ℃, 100 ℃, 110 ℃ or 120 ℃, but not limited to the values listed, other values not listed within the range of values being equally applicable.
Preferably, the tabletting treatment in step (2) is carried out for 1-5min, such as 1min, 2min, 3min, 4min or 5min, but not limited to the recited values, and other values not recited in the range of values are equally applicable.
Preferably, the gauge pressure of the press of step (3) is 10 to 30MPa, and may be, for example, 10MPa, 12MPa, 15MPa, 18MPa, 20MPa, 24MPa, 27MPa, 28MPa or 30MPa, but is not limited to the values recited, and other values not recited within the range of values are equally applicable.
Preferably, the temperature of the molding in step (3) is 180 to 240 ℃, for example 180 ℃, 190 ℃, 200 ℃, 210 ℃, 220 ℃, 230 ℃ or 240 ℃, but not limited to the recited values, and other values not recited in the range of values are equally applicable.
Preferably, the time for the molding in step (3) is 2 to 6min, for example, 2min, 3min, 4min, 5min or 6min, but is not limited to the recited values, and other values not recited in the range of values are also applicable.
Preferably, in the case of the press molding in step (3), the width of the overlapped area of the sheet obtained after the sheeting treatment in step (2) is 10 to 15mm, for example, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm, but is not limited to the values listed, and other values not listed in the range of values are also applicable.
According to the invention, the overlapping area of the sheets is 10-15mm during film pressing, so that the mechanical strength of the obtained carbon fiber reinforced pipe is ensured; meanwhile, the damping performance of the damping device is enhanced through the optimization of the structure.
Preferably, the thickness of the sheet obtained after the tabletting treatment in step (2) is 2 to 3mm, and may be, for example, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm or 3mm, but is not limited to the values listed, and other values not listed in the numerical range are equally applicable.
Preferably, the step (1) of stacking and arranging the carbon fiber reinforced composite prepreg includes: sequentially stacking a bottom prepreg, a middle prepreg and a top prepreg;
the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise any one of or a combination of at least two of a first prepreg cloth, a second prepreg cloth or a third prepreg cloth.
As a preferable technical scheme, the bottom prepreg is composed of a first prepreg, a second prepreg and a third prepreg which are sequentially stacked; the middle-layer prepreg cloth consists of a first prepreg cloth, a second prepreg cloth and a third prepreg cloth which are sequentially stacked; the top-layer prepreg fabric is composed of a first prepreg fabric, a second prepreg fabric and a third prepreg fabric which are sequentially stacked. Namely, the carbon fiber reinforced composite material prepreg includes a first prepreg, a second prepreg, a third prepreg, a first prepreg, a second prepreg and a third prepreg, which are stacked in sequence, and the arrangement directions of the two adjacent prepregs are mutually perpendicular.
The arrangement mode can effectively improve the damping performance of the carbon fiber reinforced pipe.
Preferably, the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating a base cloth in a carbon fiber reinforced prepreg.
The base fabric includes, but is not limited to, roving scrim.
Preferably, the carbon fiber reinforced prepreg comprises, in mass percent: 5-15% of PA66, 5-15% of PA6, 3-8% of toughening agent, 1-3% of lubricant, 1-4% of heat stabilizer, 1-3% of dispersant, 20-40% of glass fiber and the balance of carbon fiber.
The mass percentage of PA66 in the carbon fiber reinforced prepreg of the present invention is 5 to 15%, and may be, for example, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, or 15%, but is not limited to the values listed, and other values not listed in the numerical range are also applicable.
Preferably, the PA66 has a relative viscosity of 2.4 to 2.7, which may be, for example, 2.4, 2.5, 2.6 or 2.7, but is not limited to the values recited, and other values not recited in the range of values are equally applicable.
The PA6 mass percentage is, for example, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14% or 15%, but is not limited to the values listed, and other values not listed in the range of values are equally suitable.
Preferably, the PA6 has a relative viscosity of 2.7 to 3.4, which may be, for example, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3 or 3.4, but is not limited to the values recited, and other values not recited within the range of values are equally applicable.
The mass percentage of the toughening agent is 3 to 8%, for example 3%, 4%, 5%, 6%, 7% or 8%, but is not limited to the recited values, and other values not recited in the numerical range are equally applicable.
The toughening agent includes, but is not limited to, maleic anhydride grafted POE.
The lubricant may be present in an amount of 1 to 3% by weight, for example 1%, 1.5%, 2%, 2.5% or 3%, but is not limited to the recited values, and other values not recited within the range of values are equally applicable.
The lubricants include, but are not limited to, PETS and/or EBS.
The stated heat stabilizers may be present in a mass percentage of 1 to 4%, for example 1%, 1.5%, 2%, 2.5%, 3%, 3.5% or 4%, but are not limited to the stated values, and other values not stated in the numerical ranges are likewise suitable.
The heat stabilizer includes, but is not limited to, octyl tin maleate and/or tin carboxylate.
The mass percentage of the dispersant is 1 to 3%, and may be, for example, 1%, 1.5%, 2%, 2.5% or 3%, but is not limited to the recited values, and other values not recited in the numerical range are also applicable.
The dispersant includes, but is not limited to, polyethylene glycol 200 and/or polyethylene glycol 400.
The percentage by mass of the glass fibers is 20 to 40%, and may be, for example, 20%, 25%, 30%, 35% or 40%, but is not limited to the recited values, and other values not recited within the numerical range are also applicable.
Preferably, the glass fibers have an average length of 10 to 15mm, for example 10mm, 11mm, 12mm, 13mm, 14mm or 15mm, but are not limited to the values recited, and other values not recited within the range of values are equally applicable.
Preferably, the carbon fibres have an average length of 10 to 15mm, for example 10mm, 11mm, 12mm, 13mm, 14mm or 15mm, but are not limited to the values listed, and other values not listed within the range of values are equally applicable.
As a preferred technical scheme of the method, the method comprises the following steps: carrying out heat treatment on the carbon fiber reinforced pipe at the temperature of 45-60 ℃ for 60-120min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe;
the preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and performing pre-tabletting treatment for 20-40s under the conditions that the gauge pressure is 0.2-0.3MPa and the temperature is 30-50 ℃;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting; the gauge pressure of the tabletting treatment is 5-10MPa, the temperature is 80-120 ℃, and the time is 1-5min;
(3) Molding the sheet obtained after the tabletting in the step (2) to obtain the carbon fiber reinforced pipe; the gauge pressure of the mould pressing is 10-30MPa, the temperature of the mould pressing is 180-240 ℃, and the time of the mould pressing is 2-6min;
the step (1) of arranging the carbon fiber reinforced composite prepreg in a laminated manner comprises the following steps: sequentially stacking a bottom prepreg, a middle prepreg and a top prepreg; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise any one of or a combination of at least two of a first prepreg cloth, a second prepreg cloth or a third prepreg cloth;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in the carbon fiber reinforced prepreg;
the carbon fiber reinforced prepreg comprises the following components in percentage by mass: 5-15% of PA66, 5-15% of PA6, 3-8% of toughening agent, 1-3% of lubricant, 1-4% of heat stabilizer, 1-3% of dispersant, 20-40% of glass fiber and the balance of carbon fiber.
Compared with the prior art, the invention has the following beneficial effects:
according to the method provided by the invention, the carbon fiber reinforced pipe is subjected to heat treatment for 60-120min at the temperature of 45-60 ℃, so that the damping performance of the carbon fiber reinforced pipe is enhanced, the carbon fiber reinforced pipe can return to an equilibrium state within 10s under the condition of external stress, and the stability of a frame consisting of the carbon fiber reinforced pipe in the process of transferring goods is effectively enhanced.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps: and (3) carrying out heat treatment on the carbon fiber reinforced pipe at 54 ℃ for 90min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe.
The preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and then performing pre-tabletting treatment for 30s under the conditions that the gauge pressure is 0.25MPa and the temperature is 40 ℃;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting; the gauge pressure of the tabletting treatment is 8MPa, the temperature is 100 ℃, the time is 3min, and the thickness of the sheet obtained after the tabletting treatment is 2.5mm;
(3) Pressing the sheet obtained after the sheeting treatment in the step (2), wherein the width of an overlapping area of the sheet is 12mm during film pressing, so as to obtain the carbon fiber reinforced tube; the gauge pressure of the die pressing is 20MPa, the temperature of the die pressing is 210 ℃, and the time of the die pressing is 4min;
the carbon fiber reinforced pipe obtained in the step (3) is a square pipe with taper; the length of the square pipe is 3500mm; the cross section of the big head end of the square pipe is 70mm in length and 40mm in width; the cross section length of the small end of the square pipe is 65mm, and the width of the small end of the square pipe is 27mm.
The step (1) of arranging the carbon fiber reinforced composite prepreg cloth in a stacking manner comprises the following steps: sequentially laminating a bottom layer prepreg cloth, a middle layer prepreg cloth and a top layer prepreg cloth; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise a first prepreg cloth, a second prepreg cloth and a third prepreg cloth, and the arrangement directions of the two adjacent prepreg cloths are mutually vertical;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in a carbon fiber reinforced prepreg; the base cloth is roving checked cloth without twist, and the thickness of each prepreg cloth is the same.
The carbon fiber reinforced prepreg comprises the following components in percentage by mass: 10% of PA66, 10% of PA6, 5% of toughening agent, 2% of lubricant, 2.5% of heat stabilizer, 2% of dispersant, 30% of glass fiber and the balance of carbon fiber.
The PA66 has the relative viscosity of 2.5, the PA6 has the relative viscosity of 3, the toughening agent is maleic anhydride grafted POE, the lubricant is PETS, the heat stabilizer is octyl tin maleate, the dispersant is polyethylene glycol 200, the average length of glass fibers is 12mm, and the average length of carbon fibers is 12mm.
Example 2
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps: and (3) carrying out heat treatment on the carbon fiber reinforced pipe at 48 ℃ for 110min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe.
The preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and then performing pre-tabletting treatment for 35s under the conditions that the gauge pressure is 0.25MPa and the temperature is 35 ℃;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting; the gauge pressure of the tabletting treatment is 6MPa, the temperature is 90 ℃, the time is 4min, and the thickness of the sheet obtained after the tabletting treatment is 2.5mm;
(3) Pressing the sheet obtained after the tabletting in the step (2) by mould pressing, wherein the width of an overlapping area of the sheet is 12mm during the film pressing, so as to obtain the carbon fiber reinforced pipe; the gauge pressure of the mould pressing is 15MPa, the temperature of the mould pressing is 220 ℃, and the time of the mould pressing is 5min;
the carbon fiber reinforced pipe obtained in the step (3) is a square pipe with taper; the length of the square pipe is 3500mm; the cross section of the big head end of the square pipe is 70mm in length and 40mm in width; the cross section length of the small end of the square pipe is 65mm, and the width is 27mm.
The step (1) of arranging the carbon fiber reinforced composite prepreg in a laminated manner comprises the following steps: sequentially stacking a bottom prepreg, a middle prepreg and a top prepreg; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise a first prepreg cloth, a second prepreg cloth and a third prepreg cloth, and the arrangement directions of the two adjacent prepreg cloths are mutually vertical;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in the carbon fiber reinforced prepreg; the base cloth is roving checked cloth without twist, and the thickness of each prepreg cloth is the same.
The carbon fiber reinforced prepreg comprises the following components in percentage by mass: 8% of PA66, 12% of PA6, 4% of toughening agent, 2.5% of lubricant, 2% of heat stabilizer, 1.5% of dispersant, 25% of glass fiber and the balance carbon fiber.
The PA66 has the relative viscosity of 2.4, the PA6 has the relative viscosity of 3.4, the toughening agent is maleic anhydride grafted POE, the lubricant is EBS, the heat stabilizer is tricyclohexyltin butyrate, the dispersant is polyethylene glycol 400, the average length of glass fibers is 15mm, and the average length of carbon fibers is 10mm.
Example 3
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps: and (3) carrying out heat treatment on the carbon fiber reinforced pipe at the temperature of 45 ℃ for 120min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe.
The preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and then performing pre-tabletting treatment for 25s under the conditions that the gauge pressure is 0.25MPa and the temperature is 45 ℃;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting; the gauge pressure of the tabletting treatment is 5MPa, the temperature is 80 ℃, the time is 5min, and the thickness of the sheet obtained after the tabletting treatment is 2.5mm;
(3) Pressing the sheet obtained after the tabletting in the step (2) by mould pressing, wherein the width of an overlapping area of the sheet is 12mm during the film pressing, so as to obtain the carbon fiber reinforced pipe; the gauge pressure of the die pressing is 10MPa, the temperature of the die pressing is 240 ℃, and the time of the die pressing is 6min;
the carbon fiber reinforced pipe obtained in the step (3) is a square pipe with taper; the length of the square pipe is 3500mm; the cross section length of the big head end of the square pipe is 70mm, and the width of the big head end of the square pipe is 40mm; the cross section length of the small end of the square pipe is 65mm, and the width of the small end of the square pipe is 27mm.
The step (1) of arranging the carbon fiber reinforced composite prepreg in a laminated manner comprises the following steps: sequentially laminating a bottom layer prepreg cloth, a middle layer prepreg cloth and a top layer prepreg cloth; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise a first prepreg cloth, a second prepreg cloth and a third prepreg cloth, and the arrangement directions of the two adjacent prepreg cloths are mutually vertical;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in a carbon fiber reinforced prepreg; the base cloth is roving checked cloth without twist, and the thickness of each prepreg cloth is the same.
The carbon fiber reinforced prepreg comprises the following components in percentage by mass: 5% of PA66, 15% of PA6, 3% of toughening agent, 3% of lubricant, 1% of heat stabilizer, 2.5% of dispersant, 35% of glass fiber and the balance carbon fiber.
The PA66 has the relative viscosity of 2.7, the PA6 has the relative viscosity of 2.7, the toughening property is maleic anhydride grafted POE, the lubricant is EBS, the heat stabilizer is tricyclohexyltin butyrate, the dispersant is polyethylene glycol 200, the average length of the glass fiber is 10mm, and the average length of the carbon fiber is 15mm.
Example 4
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps: and (3) carrying out heat treatment on the carbon fiber reinforced pipe at the temperature of 56 ℃ for 80min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe.
The preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and then performing pre-tabletting treatment for 40s under the conditions that the gauge pressure is 0.2MPa and the temperature is 50 ℃;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting; the gauge pressure of the tabletting treatment is 9MPa, the temperature is 110 ℃, the time is 2min, and the thickness of the sheet obtained after the tabletting treatment is 2.5mm;
(3) Pressing the sheet obtained after the tabletting in the step (2) by mould pressing, wherein the width of an overlapping area of the sheet is 12mm during the film pressing, so as to obtain the carbon fiber reinforced pipe; the gauge pressure of the mould pressing is 25MPa, the temperature of the mould pressing is 200 ℃, and the time of the mould pressing is 3min;
the carbon fiber reinforced pipe obtained in the step (3) is a square pipe with taper; the length of the square pipe is 3500mm; the cross section length of the big head end of the square pipe is 70mm, and the width of the big head end of the square pipe is 40mm; the cross section length of the small end of the square pipe is 65mm, and the width is 27mm.
The step (1) of arranging the carbon fiber reinforced composite prepreg in a laminated manner comprises the following steps: sequentially laminating a bottom layer prepreg cloth, a middle layer prepreg cloth and a top layer prepreg cloth; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise a first prepreg cloth, a second prepreg cloth and a third prepreg cloth, and the arrangement directions of the two adjacent prepreg cloths are mutually vertical;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in the carbon fiber reinforced prepreg; the base cloth is roving checked cloth without twist, and the thickness of each prepreg cloth is the same.
The carbon fiber reinforced prepreg comprises the following components in percentage by mass: 12% of PA66, 8% of PA6, 6% of toughening agent, 1.5% of lubricant, 3% of heat stabilizer, 1% of dispersant, 40% of glass fiber and the balance of carbon fiber.
The PA66 has the relative viscosity of 2.5, the PA6 has the relative viscosity of 3, the toughening agent is maleic anhydride grafted POE, the lubricant is PETS, the heat stabilizer is tricyclohexyl tin butyrate, the dispersant is polyethylene glycol 200, the average length of glass fibers is 10mm, and the average length of carbon fibers is 15mm.
Example 5
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps: and (3) carrying out heat treatment on the carbon fiber reinforced pipe at the temperature of 60 ℃ for 60min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe.
The preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and then performing pre-tabletting treatment for 20s under the conditions that the gauge pressure is 0.3MPa and the temperature is 30 ℃;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting; the gauge pressure of the tabletting treatment is 10MPa, the temperature is 120 ℃, the time is 1min, and the thickness of the sheet obtained after the tabletting treatment is 2.5mm;
(3) Pressing the sheet obtained after the tabletting in the step (2) by mould pressing, wherein the width of an overlapping area of the sheet is 12mm during the film pressing, so as to obtain the carbon fiber reinforced pipe; the gauge pressure of the die pressing is 30MPa, the temperature of the die pressing is 180 ℃, and the time of the die pressing is 2min;
the carbon fiber reinforced pipe obtained in the step (3) is a square pipe with taper; the length of the square pipe is 3500mm; the cross section of the big head end of the square pipe is 70mm in length and 40mm in width; the cross section length of the small end of the square pipe is 65mm, and the width is 27mm.
The step (1) of arranging the carbon fiber reinforced composite prepreg in a laminated manner comprises the following steps: sequentially laminating a bottom layer prepreg cloth, a middle layer prepreg cloth and a top layer prepreg cloth; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise a first prepreg cloth, a second prepreg cloth and a third prepreg cloth, and the arrangement directions of the two adjacent prepreg cloths are mutually vertical;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in a carbon fiber reinforced prepreg; the base cloth is twistless roving checked cloth, and the thicknesses of the pre-impregnated cloths are the same.
The carbon fiber reinforced prepreg comprises the following components in percentage by mass: 15% of PA66, 5% of PA6, 8% of toughening agent, 1% of lubricant, 4% of heat stabilizer, 3% of dispersant, 20% of glass fiber and the balance of carbon fiber.
The PA66 has the relative viscosity of 2.5, the PA6 has the relative viscosity of 3, the toughening agent is maleic anhydride grafted POE, the lubricant is PETS, the heat stabilizer is tricyclohexyl tin butyrate, the dispersant is polyethylene glycol 200, the average length of glass fibers is 12mm, and the average length of carbon fibers is 12mm.
Example 6
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps of (1) removing the carbon fiber reinforced pipe obtained in the step (3) into a tapered square pipe; the length of the square pipe is 4000mm; the cross section length of the big head end of the square pipe is 75mm, and the width of the big head end of the square pipe is 45mm; the cross section length of the small end of the square pipe is 70mm, and the width of the small end of the square pipe is 30mm.
The rest is the same as in example 1.
Example 7
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps of (1) removing the carbon fiber reinforced pipe obtained in the step (3) into a tapered square pipe; the length of the square pipe is 3000mm; the cross section length of the big head end of the square pipe is 65mm, and the width of the big head end of the square pipe is 35mm; the cross section length of the little head end of square pipe is 60mm, and the width is 24mm.
The rest is the same as in example 1.
Example 8
This example provides a method for improving the damping performance of a carbon fiber reinforced tube, which is the same as example 1 except that the thickness of the sheet obtained after the sheeting treatment in step (2) is 2mm, and the width of the overlapped region during film pressing is 10mm.
Example 9
This example provides a method for improving the damping performance of a carbon fiber reinforced tube, which is the same as example 1 except that the thickness of the sheet obtained after the sheeting treatment in step (2) is 3mm, and the width of the overlapped area during film pressing is 15mm.
Example 10
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, which comprises the following steps: and (3) carrying out heat treatment on the carbon fiber reinforced pipe at 54 ℃ for 90min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe.
The preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Carbon fiber reinforced composite material prepreg cloth is arranged in a stacking mode;
(2) Cutting the laminated carbon fiber reinforced composite prepreg according to the required size and then tabletting; the gauge pressure of the tabletting treatment is 8MPa, the temperature is 100 ℃, the time is 3min, and the thickness of the sheet obtained after the tabletting treatment is 2.5mm;
(3) Pressing the sheet obtained after the tabletting in the step (2) by mould pressing, wherein the width of an overlapping area of the sheet is 12mm during the film pressing, so as to obtain the carbon fiber reinforced pipe; the gauge pressure of the mould pressing is 20MPa, the temperature of the mould pressing is 210 ℃, and the time of the mould pressing is 4min;
the carbon fiber reinforced pipe obtained in the step (3) is a square pipe with taper; the length of the square pipe is 3500mm; the cross section length of the big head end of the square pipe is 70mm, and the width of the big head end of the square pipe is 40mm; the cross section length of the small end of the square pipe is 65mm, and the width of the small end of the square pipe is 27mm.
The step (1) of arranging the carbon fiber reinforced composite prepreg in a laminated manner comprises the following steps: sequentially stacking a bottom prepreg, a middle prepreg and a top prepreg; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise a first prepreg cloth, a second prepreg cloth and a third prepreg cloth, and the arrangement directions of the two adjacent prepreg cloths are mutually vertical;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in a carbon fiber reinforced prepreg; the base cloth is roving checked cloth without twist, and the thickness of each prepreg cloth is the same.
The carbon fiber reinforced prepreg comprises the following components in percentage by mass: 10% of PA66, 10% of PA6, 5% of toughening agent, 2% of lubricant, 2.5% of heat stabilizer, 2% of dispersant, 30% of glass fiber and the balance of carbon fiber.
The PA66 has the relative viscosity of 2.5, the PA6 has the relative viscosity of 3, the toughening property is maleic anhydride grafted POE, the lubricant is PETS, the heat stabilizer is octyl tin maleate, the dispersant is polyethylene glycol 200, the average length of the glass fiber is 12mm, and the average length of the carbon fiber is 12mm.
Example 11
This example provides a method for improving the damping performance of a carbon fiber reinforced tube, which is the same as that of example 1 except that the glass fibers in the carbon fiber reinforced prepreg are replaced with equal amounts of carbon fibers having an average length of 12mm.
Example 12
The embodiment provides a method for improving the damping performance of a carbon fiber reinforced pipe, and the method is the same as the embodiment 1 except that the arrangement directions of two adjacent prepreg cloths are parallel to each other.
Comparative example 1
This comparative example provides a method for improving the damping performance of a carbon fiber reinforced pipe, and the temperature of the heat treatment was 40 ℃, and the rest was the same as in example 1.
Comparative example 2
This comparative example provides a method for improving the damping performance of a carbon fiber reinforced pipe, and the temperature of the heat treatment was 65 ℃ and the rest was the same as that of example 1.
The damping performance of the carbon fiber reinforced pipes provided in examples 1 to 12 and comparative examples 1 to 2 was tested by the following test methods: fixing the large end of the square pipe, binding a 500g load at the small end of the square pipe through a thin rope, wherein the droop length of the thin rope is 10cm, and representing the damping performance of the carbon fiber reinforced pipe by recording the time that the pipe does not obviously vibrate after the thin rope is cut; each carbon fiber reinforced tube was tested 3 times repeatedly, and the time when the tube did not vibrate significantly after the string was cut was averaged over the 3 tests and recorded as the vibration recovery time, and the results are shown in table 1.
TABLE 1
Figure BDA0002808045870000181
Figure BDA0002808045870000191
In conclusion, the method provided by the invention realizes the enhancement of the damping performance of the carbon fiber reinforced pipe by carrying out heat treatment on the carbon fiber reinforced pipe for 60-120min at the temperature of 45-60 ℃, so that the carbon fiber reinforced pipe can return to an equilibrium state within 10s under the external stress condition, and the stability of a frame consisting of the carbon fiber reinforced pipe in the process of transferring goods is effectively enhanced.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.

Claims (8)

1. A method for improving the damping performance of a carbon fiber reinforced pipe is characterized by comprising the following steps: carrying out heat treatment on the carbon fiber reinforced pipe at the temperature of 45-60 ℃ for 60-120min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe;
the carbon fiber reinforced pipe is a square pipe with taper; the length of the square pipe is 3000-4000mm; the cross section length of the big end of the square pipe is 65-75mm, and the width of the big end of the square pipe is 35-45mm; the cross section length of the small end of the square pipe is 60-70mm, and the width of the small end of the square pipe is 24-30mm;
the preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and then performing pre-tabletting treatment; the gauge pressure of the pre-tabletting treatment is 0.2-0.3MPa, the temperature is 30-50 ℃, and the time is 20-40s;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting; the width of an overlapping area of the sheet obtained after tabletting treatment is 10-15mm, and the thickness of the overlapping area is 2-3mm;
(3) Molding the sheet obtained after the tabletting in the step (2) to obtain the carbon fiber reinforced pipe;
the step (1) of arranging the carbon fiber reinforced composite prepreg in a laminated manner comprises the following steps: sequentially stacking a bottom prepreg, a middle prepreg and a top prepreg; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise a first prepreg cloth, a second prepreg cloth and a third prepreg cloth; the arrangement directions of two adjacent prepreg cloths are mutually vertical;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in the carbon fiber reinforced prepreg; the carbon fiber reinforced prepreg includes: 5-15% of PA66, 5-15% of PA6, 3-8% of toughening agent, 1-3% of lubricant, 1-4% of heat stabilizer, 1-3% of dispersant, 20-40% of glass fiber and the balance of carbon fiber.
2. The method according to claim 1, wherein the gauge pressure of the tableting process of step (2) is 5 to 10MPa.
3. The method according to claim 1, wherein the temperature of the tabletting process of step (2) is 80-120 ℃.
4. The method according to claim 1, wherein the tabletting treatment of step (2) is carried out for 1-5min.
5. The method as set forth in claim 1, wherein the gauge pressure of said molding in step (3) is 10 to 30MPa.
6. The method of claim 1, wherein the temperature of said molding in step (3) is 180-240 ℃.
7. The method of claim 1, wherein the time for said molding in step (3) is 2-6min.
8. Method according to claim 1, characterized in that it comprises the following steps: carrying out heat treatment on the carbon fiber reinforced pipe at the temperature of 45-60 ℃ for 60-120min to realize the enhancement of the damping performance of the carbon fiber reinforced pipe;
the preparation method of the carbon fiber reinforced pipe comprises the following steps:
(1) Laminating carbon fiber reinforced composite material prepreg cloth, and performing pre-tabletting treatment for 20-40s under the conditions that the gauge pressure is 0.2-0.3MPa and the temperature is 30-50 ℃;
(2) Cutting the sheet subjected to the pre-tabletting treatment according to the required size and then tabletting; the gauge pressure of the tabletting treatment is 5-10MPa, the temperature is 80-120 ℃, and the time is 1-5min;
(3) Molding the sheet obtained after the tabletting in the step (2) to obtain the carbon fiber reinforced tube; the gauge pressure of the die pressing is 10-30MPa, the temperature of the die pressing is 180-240 ℃, and the time of the die pressing is 2-6min;
the step (1) of arranging the carbon fiber reinforced composite prepreg in a laminated manner comprises the following steps: sequentially stacking a bottom prepreg, a middle prepreg and a top prepreg; the bottom prepreg cloth, the middle prepreg cloth and the top prepreg cloth respectively and independently comprise any one of or a combination of at least two of a first prepreg cloth, a second prepreg cloth or a third prepreg cloth;
the first prepreg cloth, the second prepreg cloth and the third prepreg cloth are respectively and independently obtained by impregnating base cloth in the carbon fiber reinforced prepreg;
the carbon fiber reinforced prepreg comprises the following components in percentage by mass: 5-15% of PA66, 5-15% of PA6, 3-8% of toughening agent, 1-3% of lubricant, 1-4% of heat stabilizer, 1-3% of dispersant, 20-40% of glass fiber and the balance of carbon fiber.
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Publication number Priority date Publication date Assignee Title
JP2003160382A (en) * 2001-11-26 2003-06-03 Mitsubishi Electric Corp High heat conductive carbon fiber reinforced composition material and its manufacturing method
CN107840975A (en) * 2017-10-26 2018-03-27 长沙五犇新材料科技有限公司 A kind of preparation method of continuous fibre reinforced nylon composite
CN108036123A (en) * 2018-01-03 2018-05-15 江苏澳盛复合材料科技有限公司 A kind of carbon fiber glass fiber hybrid multiple tube and preparation method thereof
CN108045039A (en) * 2017-12-06 2018-05-18 上海复合材料科技有限公司 A kind of structure high-damping carbon fibre composite and preparation method thereof
CN110406194A (en) * 2019-08-30 2019-11-05 南京思甲宁新材料科技有限公司 The enhanced carbon fibre composite of damping shock absorption formula and carbon fiber spiral blade

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003160382A (en) * 2001-11-26 2003-06-03 Mitsubishi Electric Corp High heat conductive carbon fiber reinforced composition material and its manufacturing method
CN107840975A (en) * 2017-10-26 2018-03-27 长沙五犇新材料科技有限公司 A kind of preparation method of continuous fibre reinforced nylon composite
CN108045039A (en) * 2017-12-06 2018-05-18 上海复合材料科技有限公司 A kind of structure high-damping carbon fibre composite and preparation method thereof
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