CN105061995B - Carbon fiber/epoxy resin prepreg and its preparation method - Google Patents
Carbon fiber/epoxy resin prepreg and its preparation method Download PDFInfo
- Publication number
- CN105061995B CN105061995B CN201510456879.5A CN201510456879A CN105061995B CN 105061995 B CN105061995 B CN 105061995B CN 201510456879 A CN201510456879 A CN 201510456879A CN 105061995 B CN105061995 B CN 105061995B
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- tow
- epoxy resin
- prepreg
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of carbon fiber/epoxy resin prepreg is unidirectional pre-immersion material, and by being obtained after modified carbon fibre tow impregnation by arranging silk machine winding row's silk, wherein each component quality group turns into：Zinc oxide 0.8%-2.9%；C6H5NHCH2Si(OCH2CH3)3Or NH2(CH2CH2NH)2(CH2)3Si(OCH3)30.1%-0.2%；The polyacrylonitrile-based carbon fibre long filament 50%-55% of non-starching and surface without groove structure；The epoxy resin of AG 80 or the epoxy resin 25%-35% of ZEP 001；4,4 ' diaminodiphenyl ethers or 4,4 ' MDA 8%-10%；Carbon fiber reinforced bismalemide composite wood feed powder 4%-8%.The present invention has and both enough improved interface bond strength between carbon fiber and resin without carbon fiber starching, and can, additionally it is possible to the advantages of improving composite interlayer toughness.
Description
Technical field
The invention belongs to a kind of carbon fiber/epoxy resin prepreg and its preparation method.
Technical background
Carbon fibre composite is widely used because of its outstanding mechanical property in high-tech sector.With to carbon
Fibrous composite research is gradually goed deep into, and researchers have found that the performance of composite is not only limited to each component material and added
Work technique, at the same during being also subject to processing prepreg quality influence.
Prepreg is intermediate products important in composite production, and the quality of prepreg quality directly affects composite
Overall performance.Carbon fiber prepreg production usually directly uses commercially available carbon fiber and resin, passes through optimization processing technology
And the later stage adds certain modifying agent, the quality of prepreg is improved with this.But carbon fiber is in last procedure of production
Need to carry out starching processing, to increase the machinability of carbon fiber, such as convergence, wearability and fibrillation expanding, while institute
Also material impact be present to the interface bond strength between carbon fiber and resin with the species of sizing agent.In general, it is acquisition
High interfacial bonding strength between carbon fiber and resin using with the same or like resin of matrix resin chemical constitution, it is necessary to make
For sizing agent major constituent.In practical application, because resin types are various, and carbon fiber can not be predicted during dispatching from the factory the later stage with
Matching resin types, therefore sizing agent used can only be based on the maximum epoxy resin of current usage amount.But asphalt mixtures modified by epoxy resin
Fat is directly existed limited with matching between resin used unavoidably there is also different structures using commercially available carbon fiber
Problem, the quality of prepreg is limited to a certain extent.
On the other hand, the reason of strand formation network structure after solidifying in itself due to epoxy resin, traditional carbon fiber/
The defects of interlaminal toughness difference be present in epoxy prepreg.Conventional modification mode is nano-particle toughening, the beautiful sun of Mitsubishi
Co., Ltd.'s (Chinese invention patent application 201210376448.4) discloses one kind in a carbon fiber prepreg at least side surface
Adhere to the method for carborundum particle, aluminium oxide particles or kaolin particle.But it is prepared into using this method in prepreg compound
After material, the nano-particle of addition exists only in interlayer, can not be dispersed in resin matrix, the nanometer that interlayer is locally lain in
Particle is easy to produce stress concentration in loading process, reduces the mechanical performance of composite.
For the above analysis, it is necessary to which a kind of both do not need carbon fiber starching, and can enough improves the boundary of carbon fiber and resin
Face bond strength, additionally it is possible to improve the carbon fiber/epoxy resin prepreg of composite interlayer toughness, so as to obtain high-quality
Carbon-fibre reinforced epoxy resin composite material.
The content of the invention
It is an object of the invention to provide one kind both without carbon fiber starching, and can enough improves interface between carbon fiber and resin and tied
Close intensity, additionally it is possible to improve the carbon fiber/epoxy resin prepreg and preparation method of composite interlayer toughness.
Carbon fiber/epoxy resin prepreg of the present invention is unidirectional pre-immersion material, by modified carbon fibre tow impregnation
Obtained afterwards by arranging silk machine winding row's silk, each component quality group turns into：
Zinc oxide 0.8%-2.9%；
C6H5NHCH2Si(OCH2CH3)3Or NH2(CH2CH2NH)2(CH2)3Si(OCH3)30.1%-0.2%；
The polyacrylonitrile-based carbon fibre long filament 50%-55% of non-starching and surface without groove structure；
AG-80 epoxy resin or ZEP-001 epoxy resin 25%-35%；
4,4 '-diaminodiphenyl ether or 4,4 '-MDA 8%-10%；
Carbon fiber reinforced bismalemide composite wood feed powder 4%-8%.
Zinc oxide as described above is nanometer line morphology, a diameter of 80 to 120 nanometers.
The polyacrylonitrile-based carbon fibre long filament of non-starching and surface without groove structure as described above, using dry-jet wet-spinning work
Polyacrylonitrile-based carbon fibre prepared by skill, carbon fiber length are not less than 20 centimetres.
Carbon fiber reinforced bismalemide composite wood feed powder as described above is double by the waste and old fibre reinforced reclaimed
Maleimide composite grinds what is obtained, and the D50 of powder particle size distribution value is 1 to 5 micron, and span carrys out acyl in powder
The mass fraction of imide resin is 35%-45%, and the powder is dispersed in AG-80 epoxy resin or ZEP-001 asphalt mixtures modified by epoxy resin
In fat.
The preparation method of carbon fiber/epoxy resin prepreg of the present invention, it is that a kind of and carbon fiber production process can
It is directly compatible with and quantity-produced method, carbon fibre tow is directly entered after charing process and anodized
In preparation technology provided by the invention, without starching and the process of receipts silk, after preparation technology provided by the invention, with list
To prepreg cloth form collect, afterwards into prepreg cloth heating precrosslink technique, so as to obtain carbon fiber of the present invention/
Epoxy prepreg, prepared particular by following methods：
(1) using graphite as wire deflector roll in zinc oxide nanowire grows groove, using unsized carbon fiber filament as anode,
Using saturated calomel electrode as reference electrode, using the gold thread of a diameter of 50-60 microns as negative electrode, three is placed in zinc-oxide nano
Below the reaction solution liquid level of line growth groove, it is powered by D.C. regulated power supply to three, control puts on carbon fibre tow
Voltage is -1.1~-1.3 volts relative to reference electrode, and reaction solution temperature control is between 80-85 DEG C, the reaction time
For 35-45 minutes, tow entrance afterwards is placed with the deionized water rinse bath of supersonic generator, controls supersonic generator
Power be 10-30 watts, dried after cleaning into drying box, control drying temperature as 100-150 DEG C, drying time is
3-5 minutes；
(2) tow after drying enters aminofunctional groove, and it is 0.5-0.8 moles every liter that concentration is filled in groove
C6H5NHCH2Si(OCH2CH3)3Or NH2(CH2CH2NH)2(CH2)3Si(OCH3)3One kind in the aqueous solution, and by acetic acid or
Person's hydrochloric acid adjusts its pH value between 4-5, and it is 30-40 minutes to control reaction time of the tow in aminofunctional groove, then
Tow is dried into drying box at 60-80 DEG C；
(3) by 4,4 '-diaminodiphenyl ether or 4,4 '-MDA is dissolved in acetone, is configured to quality point
Number is 20%-40% solution, and by the proportioning for stating carbon fiber/epoxy resin prepreg each component, is added in the solution
AG-80 epoxy resin or ZEP-001 epoxy resin, and carbon fiber reinforced bismalemide composite powder, stirring are equal
Poured into after even in steeping vat, and supersonic generator is placed with steeping vat, it is 100-150 watts to control operating power, so
The tow after step (2) drying enters in steeping vat afterwards, and it is the 10-20 seconds to control the impregnation time, tow tension 160-200
Gram, the tow after impregnation removes unnecessary resin adhesive liquid by a spreading roller；
(4) tow after step (3) impregnation arranges silk by way of arranging silk machine using winding, winds 2-4 repeatedly altogether
Layer, forms unidirectional prepreg cloth；
(5) prepreg cloth is removed, the vacuum drying 6-12 hours under the conditions of 40-60 DEG C, then in 100-120 DEG C of bar
4-6 hours are dried under part, obtain carbon fiber/epoxy resin prepreg.
It is comprising the zinc nitrate or zinc carbonate that concentration is 1.5-2.0 moles every liter, concentration in reaction solution as described above
1.5-2.0 moles every liter of hexa or sodium hydroxide.
Beneficial effects of the present invention：
(1) carbon fiber/epoxy resin preimpregnation preparation method for material provided by the invention, using relative with carbon fiber production process
The method connect, the sizing process of carbon fiber is eliminated, avoided by sizing agent major constituent and matrix resin poor compatibility are led
The defects of interfacial combined function of cause declines.
(2) amino modified zinc oxide nanowire is coated in carbon fiber surface by continuous process, passes through amino and base
Chemical bonding between body resin, carbon fiber/epoxy resin interface is improved to the tolerance level of wet heat condition, further enhances boundary
Face combines.
(3) powder of the carbon fiber reinforced bismalemide composite of recovery is added in the present invention in resin matrix,
The approach of a thermosetting carbon fibre composite recycling is provided, while the toughness of composite can be improved.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.
It should be noted that embodiment herein is merely to illustrate the present invention rather than limitation the scope of the present invention.
It shall yet further be noted that after present disclosure is read, various changes that those skilled in the art are done to the present invention or
Modification, these equivalent form of values are also belonged in the range of the restriction of appended claims.
Embodiment 1
Domestic T700 levels 12K carbon fibers (Shanxi Inst. of Coal Chemistry, Chinese Academy of Sciences), spin via dry-jet wet spinning process
Silk, then after peroxidating, charing and anodized, without starching and closing wire technology, it is directly entered zinc oxide nanowire
Grow groove.Using graphite as wire deflector roll in the trough, using unsized carbon fiber as anode, using saturated calomel electrode as reference electricity
Pole, using a diameter of 60 microns of gold thread as negative electrode, three is placed in below the reaction solution liquid level of zinc oxide nanowire growth groove,
Three is given to be powered by D.C. regulated power supply, it relative to reference electrode is -1.2 volts to control the voltage for putting on carbon fibre tow
Spy, comprising the zinc nitrate that concentration is 1.5 moles every liter in reaction solution used, and six that concentration is 1.5 moles every liter are sub-
Tetramine, reaction solution temperature control are 80 degrees Celsius, and it is 35 points to control reaction time of the tow in reaction solution
Clock, for tow into the deionized water rinse bath for being placed with supersonic generator, the power for controlling supersonic generator is 10 afterwards
Watt, the tow after cleaning is dried into drying baker, and it is 100 degrees Celsius to control drying temperature, and drying time is 5 minutes.After drying
Tow enter aminofunctional groove, it is 0.8 mole every liter of C that concentration is filled in trough6H5NHCH2Si(OCH2CH3)3It is water-soluble
Liquid, and it is 4 to adjust its pH value by hydrochloric acid, and it is 40 minutes to control reaction time of the tow in aminofunctional groove, then
Tow enters drying baker, dries at 80 degrees celsius.Tow after drying subsequently enters steeping vat, and the glue in steeping vat is logical
Cross what following method was prepared：4,4 '-diaminodiphenyl ether is dissolved in acetone, is configured to 4,4 '-diaminodiphenyl ether quality point
Number is 20% solution, and according to AG-80 epoxy resin：4,4 '-diaminodiphenyl ether：The fibre reinforced span of recovery draws acyl
The mass ratio of imide resin powder is 35:10:4 and gross mass be 5 kilograms, in the solution add AG-80 epoxy resin, and
Recycling and the D50 of particle diameter distribution value be 1 micron of carbon fiber reinforced bismalemide composite powder, powder
The mass fraction of bimaleimide resin is 35% in material, is poured into after stirring in steeping vat, and put in steeping vat
Supersonic generator is put, it is 100 watts to control operating power.Tow is by steeping vat, and it is 10 seconds to control the impregnation time, tow tension
For 160 grams, the tow after impregnation removes unnecessary resin adhesive liquid by a spreading roller.Then the tow after impregnation passes through winding
Mode using arrange silk machine row silk, altogether repeatedly winding row 2 layers of silk, form unidirectional prepreg cloth.Afterwards, prepreg cloth is removed,
Vacuum drying 6 hours under 40 degrees celsius, then dry 6 hours, just obtain of the present invention under 100 degrees celsius
Carbon fiber/epoxy resin prepreg.
In the carbon fiber/epoxy resin prepreg, the zinc oxide nanowire that mass fraction is 2.9%, 0.1% are included
C6H5NHCH2Si(OCH2CH3)3, 48% carbon fiber filament, 35% AG-80 epoxy resin, the 4,4 ' of 10%-diaminourea two
The fibre reinforced span of phenylate and 4% recovery draws imide resin powder.
Embodiment 2
Domestic T700 levels 12K carbon fibers (Shanxi Inst. of Coal Chemistry, Chinese Academy of Sciences), spin via dry-jet wet spinning process
Silk, then after peroxidating, charing and anodized, without starching and closing wire technology, it is directly entered zinc oxide nanowire
Grow groove.Using graphite as wire deflector roll in the trough, using unsized carbon fiber as anode, using saturated calomel electrode as reference electricity
Pole, using a diameter of 50 microns of gold thread as negative electrode, three is placed in below the reaction solution liquid level of zinc oxide nanowire growth groove,
Three is given to be powered by D.C. regulated power supply, it relative to reference electrode is -1.3 volts to control the voltage for putting on carbon fibre tow
Spy, comprising the zinc carbonate that concentration is 2.0 moles every liter in reaction solution used, and six that concentration is 2.0 moles every liter are sub-
Tetramine, reaction solution temperature control are 85 degrees Celsius, and it is 45 points to control reaction time of the tow in reaction solution
Clock, for tow into the deionized water rinse bath for being placed with supersonic generator, the power for controlling supersonic generator is 30 afterwards
Watt, the tow after cleaning is dried into drying baker, and it is 150 degrees Celsius to control drying temperature, and drying time is 3 minutes.After drying
Tow enter aminofunctional groove, it is 0.5 mole every liter of C that concentration is filled in trough6H5NHCH2Si(OCH2CH3)3It is water-soluble
Liquid, and it is 5 to adjust its pH value by acetic acid, and it is 30 minutes to control reaction time of the tow in aminofunctional groove, then
Tow enters drying baker, dries at 60 c.Tow after drying subsequently enters steeping vat, and the glue in steeping vat is logical
Cross what following method was prepared：4,4 '-MDA is dissolved in acetone, is configured to 4,4 '-MDA matter
The solution that fraction is 40% is measured, and according to AG-80 epoxy resin：4,4 '-diaminodiphenyl ether：The fibre reinforced span of recovery
The mass ratio for drawing imide resin powder is 35:8:4 and gross mass be 5 kilograms, in the solution add AG-80 epoxy resin with
And recycling and the D50 of particle diameter distribution value be 5 microns of carbon fiber reinforced bismalemide composite powder,
The mass fraction of bimaleimide resin is 45% in powder, is poured into after stirring in steeping vat, and in steeping vat
Supersonic generator is placed, it is 150 watts to control operating power.Tow is by steeping vat, and it is 20 seconds to control the impregnation time, tow
Power is 200 grams, and the tow after impregnation removes unnecessary resin adhesive liquid by a spreading roller.Then the tow after impregnation is by twining
Around mode using arrange silk machine row silk, altogether repeatedly winding row 4 layers of silk, form unidirectional prepreg cloth.Afterwards, prepreg cloth is removed,
Vacuum drying 12 hours under 60 degrees celsius, then dried 4 hours under 120 degrees celsius, just obtain institute of the present invention
The carbon fiber/epoxy resin prepreg stated.
In the carbon fiber/epoxy resin prepreg, the zinc oxide nanowire that mass fraction is 0.8%, 0.2% are included
C6H5NHCH2Si(OCH2CH3)3, 52% carbon fiber filament, 35% AG-80 epoxy resin, the 4,4 ' of 8%-diaminourea hexichol
The fibre reinforced span of ether and 4% recovery draws imide resin powder.
Embodiment 3
Domestic T700 levels 12K carbon fibers (Shanxi Inst. of Coal Chemistry, Chinese Academy of Sciences), spin via dry-jet wet spinning process
Silk, then after peroxidating, charing and anodized, without starching and closing wire technology, it is directly entered zinc oxide nanowire
Grow groove.Using graphite as wire deflector roll in the trough, using unsized carbon fiber as anode, using saturated calomel electrode as reference electricity
Pole, using a diameter of 50 microns of gold thread as negative electrode, three is placed in below the reaction solution liquid level of zinc oxide nanowire growth groove,
Three is given to be powered by D.C. regulated power supply, it relative to reference electrode is -1.1 volts to control the voltage for putting on carbon fibre tow
Spy, comprising the zinc nitrate that concentration is 1.8 moles every liter in reaction solution used, and six that concentration is 1.8 moles every liter are sub-
Tetramine, reaction solution temperature control are 82 degrees Celsius, and it is 40 points to control reaction time of the tow in reaction solution
Clock, for tow into the deionized water rinse bath for being placed with supersonic generator, the power for controlling supersonic generator is 10 afterwards
Watt, the tow after cleaning is dried into drying baker, and it is 120 degrees Celsius to control drying temperature, and drying time is 4 minutes.After drying
Tow enter aminofunctional groove, it is 0.7 mole every liter of C that concentration is filled in trough6H5NHCH2Si(OCH2CH3)3It is water-soluble
Liquid, and it is 4.6 to adjust its pH value by hydrochloric acid, and it is 35 minutes to control reaction time of the tow in aminofunctional groove, is connect
Tow and enter drying baker, dried under 70 degrees Celsius.Tow after drying subsequently enters steeping vat, and the glue in steeping vat is
Prepare by the following method：4,4 '-MDA is dissolved in acetone, is configured to 4,4 '-MDA
Mass fraction is 30% solution, and according to AG-80 epoxy resin：4,4 '-MDA：The fibre reinforced of recovery
It is 25 that span, which draws the mass ratio of imide resin powder,:10:4 and gross mass be 6 kilograms, in the solution add AG-80 epoxies
Resin, and recycling and the D50 of particle diameter distribution value be 3 microns of carbon fiber reinforced bismalemide composite wood
Feed powder material, the mass fraction of bimaleimide resin is 40% in powder, is poured into after stirring in steeping vat, and soaking
Supersonic generator is placed in glue groove, it is 130 watts to control operating power.For tow by steeping vat, it is 15 seconds to control the impregnation time,
Tow tension is 180 grams, and the tow after impregnation removes unnecessary resin adhesive liquid by a spreading roller.Then the tow after impregnation
Using silk machine row's silk is arranged by way of winding, 3 layers of silk is arranged in winding repeatedly altogether, forms unidirectional prepreg cloth.Afterwards, by prepreg cloth
Remove, vacuum drying 9 hours under 50 degrees celsius, then dried 5 hours under 110 degrees celsius, just obtain this hair
Bright described carbon fiber/epoxy resin prepreg.
In the carbon fiber/epoxy resin prepreg, the zinc oxide nanowire that mass fraction is 2.9%, 0.2% are included
C6H5NHCH2Si(OCH2CH3)3, 57.9% carbon fiber filament, 25% AG-80 epoxy resin, the 4,4 ' of 10%-diaminourea
The fibre reinforced span of diphenyl-methane and 4% recovery draws imide resin powder.
Embodiment 4
Domestic T700 levels 12K carbon fibers (Shanxi Inst. of Coal Chemistry, Chinese Academy of Sciences), spin via dry-jet wet spinning process
Silk, then after peroxidating, charing and anodized, without starching and closing wire technology, it is directly entered zinc oxide nanowire
Grow groove.Using graphite as wire deflector roll in the trough, using unsized carbon fiber as anode, using saturated calomel electrode as reference electricity
Pole, using a diameter of 50 microns of gold thread as negative electrode, three is placed in below the reaction solution liquid level of zinc oxide nanowire growth groove,
Three is given to be powered by D.C. regulated power supply, it relative to reference electrode is -1.2 volts to control the voltage for putting on carbon fibre tow
Spy, comprising the zinc nitrate that concentration is 1.6 moles every liter in reaction solution used, and the hydrogen-oxygen that concentration is 1.9 moles every liter
Change sodium, reaction solution temperature control is 80 degrees Celsius, and it is 35 minutes to control reaction time of the tow in reaction solution, it
Tow enters the deionized water rinse bath for being placed with supersonic generator afterwards, and the power for controlling supersonic generator is 10 watts, clearly
Tow after washing is dried into drying baker, and it is 100 degrees Celsius to control drying temperature, and drying time is 5 minutes.Tow after drying
Into aminofunctional groove, the NH that concentration is 0.8 mole every liter is filled in trough2(CH2CH2NH)2(CH2)3Si(OCH3)3It is water-soluble
Liquid, and it is 4 to adjust its pH value by hydrochloric acid, and it is 40 minutes to control reaction time of the tow in aminofunctional groove, then
Tow enters drying baker, dries at 80 degrees celsius.Tow after drying subsequently enters steeping vat, and the glue in steeping vat is logical
Cross what following method was prepared：4,4 '-diaminodiphenyl ether is dissolved in acetone, is configured to 4,4 '-diaminodiphenyl ether quality point
Number is 20% solution, and according to ZEP-001 epoxy resin：4,4 '-diaminodiphenyl ether：The fibre reinforced span of recovery is drawn
The mass ratio of imide resin powder is 25:8:4 and gross mass be 5 kilograms, in the solution add ZEP-001 epoxy resin,
And recycling and the D50 of particle diameter distribution value be 4 microns of carbon fiber reinforced bismalemide composite wood feed powder
To expect, the mass fraction of bimaleimide resin is 37% in powder, is poured into after stirring in steeping vat, and in steeping vat
Middle placement supersonic generator, it is 100 watts to control operating power.Tow is by steeping vat, and it is 10 seconds to control the impregnation time, tow
Tension force is 160 grams, and the tow after impregnation removes unnecessary resin adhesive liquid by a spreading roller.Then the tow after impregnation passes through
For the mode of winding using silk machine row's silk is arranged, 2 layers of silk is arranged in winding repeatedly altogether, forms unidirectional prepreg cloth.Afterwards, prepreg cloth is taken
Under, vacuum drying 10 hours under 40 degrees celsius, then dried 5 hours under 110 degrees celsius, just obtain the present invention
Described carbon fiber/epoxy resin prepreg.
In the carbon fiber/epoxy resin prepreg, the zinc oxide nanowire that mass fraction is 0.8%, 0.1% are included
NH2(CH2CH2NH)2(CH2)3Si(OCH3)3, 62.1% carbon fiber filament, 25% ZEP-001 epoxy resin, the 4 of 8%,
The fibre reinforced span of 4 '-diaminodiphenyl ether and 4% recovery draws imide resin powder.
Embodiment 5
Domestic T700 levels 12K carbon fibers (Shanxi Inst. of Coal Chemistry, Chinese Academy of Sciences), spin via dry-jet wet spinning process
Silk, then after peroxidating, charing and anodized, without starching and closing wire technology, it is directly entered zinc oxide nanowire
Grow groove.Using graphite as wire deflector roll in the trough, using unsized carbon fiber as anode, using saturated calomel electrode as reference electricity
Pole, using a diameter of 50 microns of gold thread as negative electrode, three is placed in below the reaction solution liquid level of zinc oxide nanowire growth groove,
Three is given to be powered by D.C. regulated power supply, it relative to reference electrode is -1.3 volts to control the voltage for putting on carbon fibre tow
Spy, comprising the zinc carbonate that concentration is 2.0 moles every liter in reaction solution used, and six that concentration is 2.0 moles every liter are sub-
Tetramine, reaction solution temperature control are 85 degrees Celsius, and it is 45 points to control reaction time of the tow in reaction solution
Clock, for tow into the deionized water rinse bath for being placed with supersonic generator, the power for controlling supersonic generator is 30 afterwards
Watt, the tow after cleaning is dried into drying baker, and it is 150 degrees Celsius to control drying temperature, and drying time is 3 minutes.After drying
Tow enter aminofunctional groove, it is 0.5 mole every liter of NH that concentration is filled in trough2(CH2CH2NH)2(CH2)3Si
(OCH3)3The aqueous solution, and it is 5 to adjust its pH value by acetic acid, and it is 30 to control reaction time of the tow in aminofunctional groove
Minute, then tow enters drying baker, dries at 60 c.Tow after drying subsequently enters steeping vat, in steeping vat
Glue prepare by the following method：4,4 '-MDA is dissolved in acetone, is configured to 4,4 '-diaminourea
Diphenyl-methane mass fraction is 40% solution, and according to AG-80 epoxy resin：4,4 '-MDA：The carbon of recovery
It is 35 that fiber reinforcement span, which draws the mass ratio of imide resin powder,:10:8 and gross mass be 5 kilograms, added in the solution
AG-80 epoxy resin and recycling and the D50 of particle diameter distribution value be 5 microns fibre reinforced bismaleimide
Amine composite powder, the mass fraction of bimaleimide resin is 43% in powder, and steeping vat is poured into after stirring
In, and supersonic generator is placed in steeping vat, it is 150 watts to control operating power.Tow is by steeping vat, when controlling impregnation
Between be 20 seconds, tow tension is 200 grams, and tow after impregnation passes through a spreading roller and removes unnecessary resin adhesive liquid.Then soak
For tow after glue using silk machine row's silk is arranged by way of winding, 4 layers of silk is arranged in winding repeatedly altogether, forms unidirectional prepreg cloth.It
Afterwards, prepreg cloth is removed, vacuum drying 12 hours under 60 degrees celsius, then drying 4 is small under 120 degrees celsius
When, just obtain carbon fiber/epoxy resin prepreg of the present invention.
In the carbon fiber/epoxy resin prepreg, the zinc oxide nanowire that mass fraction is 1.4%, 0.1% are included
NH2(CH2CH2NH)2(CH2)3Si(OCH3)3, 45.5% carbon fiber filament, 35% AG-80 epoxy resin, the 4,4 ' of 10%-
The fibre reinforced span of MDA and 8% recovery draws imide resin powder.
Embodiment 6
The present embodiment and the difference of embodiment 5 are that glue used in carbon fibre tow impregnation, is logical in the present embodiment
Cross what following method was prepared：4,4 '-MDA is dissolved in acetone, is configured to 4,4 '-MDA matter
The solution that fraction is 40% is measured, and according to ZEP-001 epoxy resin：4,4 '-MDA：The fibre reinforced of recovery
It is 35 that span, which draws the mass ratio of imide resin powder,:8:8 and gross mass be 5 kilograms, in the solution add ZEP-001 epoxies
Resin and recycling and the D50 of particle diameter distribution value be 5 microns carbon fiber reinforced bismalemide composite wood
Feed powder material.
In the carbon fiber/epoxy resin prepreg, the zinc oxide nanowire that mass fraction is 1.9%, 0.1% are included
NH2(CH2CH2NH)2(CH2)3Si(OCH3)3, 47% carbon fiber filament, 35% ZEP-001 epoxy resin, the 4,4 ' of 8%-
The fibre reinforced span of MDA and 8% recovery draws imide resin powder.
Embodiment 7
The present embodiment and the difference of embodiment 5 are that glue used in carbon fibre tow impregnation, is logical in the present embodiment
Cross what following method was prepared：4,4 '-MDA is dissolved in acetone, is configured to 4,4 '-MDA matter
The solution that fraction is 40% is measured, and according to ZEP-001 epoxy resin：4,4 '-MDA：The fibre reinforced of recovery
It is 25 that span, which draws the mass ratio of imide resin powder,:10:8 and gross mass be 5 kilograms, in the solution add ZEP-001 rings
Oxygen tree fat and recycling and the D50 of particle diameter distribution value be 2 microns carbon fiber reinforced bismalemide it is compound
Material powder.
In the carbon fiber/epoxy resin prepreg, the zinc oxide nanowire that mass fraction is 1.8%, 0.2% are included
NH2(CH2CH2NH)2(CH2)3Si(OCH3)3, 55% carbon fiber filament, 25% ZEP-001 epoxy resin, the 4,4 ' of 10%-
The fibre reinforced span of MDA and 8% recovery draws imide resin powder.
Embodiment 8
The present embodiment and the difference of embodiment 5 are that glue used in carbon fibre tow impregnation, is logical in the present embodiment
Cross what following method was prepared：4,4 '-MDA is dissolved in acetone, is configured to 4,4 '-MDA matter
The solution that fraction is 40% is measured, and according to ZEP-001 epoxy resin：4,4 '-MDA：The fibre reinforced of recovery
It is 25 that span, which draws the mass ratio of imide resin powder,:8:8 and gross mass be 5 kilograms, in the solution add ZEP-001 epoxies
Resin and recycling and the D50 of particle diameter distribution value be 3 microns carbon fiber reinforced bismalemide composite wood
Feed powder material.
In the carbon fiber/epoxy resin prepreg, the zinc oxide nanowire that mass fraction is 2.1%, 0.1% are included
NH2(CH2CH2NH)2(CH2)3Si(OCH3)3, 56.8% carbon fiber filament, 25% ZEP-001 epoxy resin, the 4 of 8%,
The fibre reinforced span of 4 '-MDA and 8% recovery draws imide resin powder.
Comparative example 1
Domestic T700 levels 12K carbon fibers (Shanxi Inst. of Coal Chemistry, Chinese Academy of Sciences), spin via dry-jet wet spinning process
Silk, then after peroxidating, charing and anodized, without starching and closing wire technology, it is directly entered steeping vat, steeping vat
In glue prepare by the following method：4,4 '-MDA is dissolved in acetone, is configured to 4,4 '-diamino
Base diphenyl-methane mass fraction is 40% solution, and according to AG-80 epoxy resin：The quality of 4,4 '-MDA
Than for 35:10 and gross mass be 5 kilograms, in the solution add AG-80 epoxy resin, stir after pour into steeping vat
In, and supersonic generator is placed in steeping vat, it is 150 watts to control operating power.Tow is by steeping vat, when controlling impregnation
Between be 20 seconds, tow tension is 200 grams, and tow after impregnation passes through a spreading roller and removes unnecessary resin adhesive liquid.Then soak
For tow after glue using silk machine row's silk is arranged by way of winding, 4 layers of silk is arranged in winding repeatedly altogether, forms unidirectional prepreg cloth.It
Afterwards, prepreg cloth is removed, vacuum drying 12 hours under 60 degrees celsius, then drying 4 is small under 120 degrees celsius
When, just obtain the carbon fiber/epoxy resin prepreg of this comparative example.
Comparative example 2
Domestic T700 levels 12K carbon fibers (Shanxi Inst. of Coal Chemistry, Chinese Academy of Sciences), spin via dry-jet wet spinning process
Silk, then after peroxidating, charing and anodized, without starching and closing wire technology, it is directly entered steeping vat, steeping vat
In glue prepare by the following method：4,4 '-diaminodiphenyl ether is dissolved in acetone, is configured to 4,4 '-diaminourea
Diphenyl ether mass fraction is 20% solution, and according to ZEP-001 epoxy resin：The mass ratio of 4,4 '-diaminodiphenyl ether is
25:8 and gross mass be 5 kilograms, in the solution add ZEP-001 epoxy resin, stir after pour into steeping vat, and
Supersonic generator is placed in steeping vat, it is 100 watts to control operating power.Tow controls the impregnation time to be by steeping vat
10 seconds, tow tension was 160 grams, and the tow after impregnation removes unnecessary resin adhesive liquid by a spreading roller.Then after impregnation
Tow by way of winding using arrange silk machine row silk, altogether repeatedly winding row 2 layers of silk, form unidirectional prepreg cloth.Afterwards, will
Prepreg cloth is removed, vacuum drying 10 hours under 40 degrees celsius, is then dried under 110 degrees celsius 5 hours, is just obtained
To the carbon fiber/epoxy resin prepreg of the present embodiment.
Test
Prepreg in whole embodiments and comparative example is prepared into laminate by hot press, pressure used is 5MPa, is risen
Warm course is：140 DEG C of heating 2h, 180 DEG C of heating 4h, heating terminate rear pressurize and are cooled to room temperature.Gained laminate uses Buddha's warrior attendant
Stone cutter is cut to the size required for testing standard.According to document (H.Yuan, et al.Surface modification
of carbon fibers by a polyether sulfone emulsion sizing for increased
interfacial adhesion with polyether sulfone,Applied Surface Science,317(2014)
737-744.) the interlaminar shear strength of the method detection laminate of report, to characterize the knot of the interface between carbon fiber and resin
Intensity is closed, then according to document (T.Lyashenko, et al.Improved Mode II delamination fracture
toughness of composite materials by selective placement of protein-surface
Treated CNT, Composites Science and Technology, 85 (2013) 29-35.) report method, detection
The interlaminar fracture toughness of laminate, test result are as shown in table 1.
Table 1
| Sample | Interlaminar shear strength (MPa) | Interlaminar fracture toughness (MPa) |
| Embodiment 1 | 117 | 94 |
| Embodiment 2 | 119 | 92 |
| Embodiment 3 | 125 | 91 |
| Embodiment 4 | 109 | 88 |
| Embodiment 5 | 114 | 89 |
| Embodiment 6 | 118 | 97 |
| Embodiment 7 | 116 | 96 |
| Embodiment 8 | 114 | 87 |
| Comparative example 1 | 81 | 68 |
| Comparative example 2 | 74 | 75 |
From table it is obvious that compared with comparative example, disclose what prepreg prepared by method obtained using the present invention
Laminate, possess higher interlaminar shear strength and interlaminar fracture toughness.Prepreg in comparative example is directly to soak carbon fiber
Glue, and glue used does not include modified Bismaleimide composites powder.It was therefore concluded that it is in carbon
The technique of fiber surface growth of zinc oxide nano line and the method being modified using Bismaleimide composites powder, are obtained
The high-performance of laminate prepared by prepreg in the present invention.
Claims (7)
- A kind of 1. carbon fiber/epoxy resin prepreg, it is characterised in that carbon fiber/epoxy resin prepreg is unidirectional pre-immersion material, By being obtained after modified carbon fibre tow impregnation by arranging silk machine winding row's silk, wherein each component quality group turns into：Zinc oxide 0.8%-2.9%；C6H5NHCH2Si(OCH2CH3)3Or NH2(CH2CH2NH)2(CH2)3Si(OCH3)30.1% -0.2%；The polyacrylonitrile-based carbon fibre long filament 50%-55% of non-starching and surface without groove structure；AG-80 epoxy resin or ZEP-001 epoxy resin 25%-35%；4,4 '-diaminodiphenyl ether or 4,4 '-MDA 8%-10%；Carbon fiber reinforced bismalemide composite wood feed powder 4%-8%；Modified carbon fibre tow is modified what is prepared by the following method：（1）Using graphite as wire deflector roll in zinc oxide nanowire grows groove, using unsized carbon fiber filament as anode, with full It is reference electrode with calomel electrode, using the gold thread of a diameter of 50-60 microns as negative electrode, three is placed in zinc oxide nanowire life Below the reaction solution liquid level of elongated slot, it is powered by D.C. regulated power supply to three, control puts on the voltage of carbon fibre tow It it is -1.1~-1.3 volts relative to reference electrode, between 80-85 DEG C, the reaction time is reaction solution temperature control 35-45 minutes, afterwards tow entrance are placed with the deionized water rinse bath of supersonic generator, control supersonic generator Power is 10-30 watts, is dried after cleaning into drying box, and it is 100-150 DEG C to control drying temperature, and drying time is 3-5 minutes；（2）Tow after drying enters aminofunctional groove, and it is 0.5-0.8 moles every liter that concentration is filled in groove C6H5NHCH2Si(OCH2CH3)3Or NH2(CH2CH2NH)2(CH2)3Si(OCH3)3One kind in the aqueous solution, and by acetic acid or Person's hydrochloric acid adjusts its pH value between 4-5, and it is 30-40 minutes to control reaction time of the tow in aminofunctional groove, then Tow is dried into drying box at 60-80 DEG C.
- 2. a kind of carbon fiber/epoxy resin prepreg as claimed in claim 1, it is characterised in that described zinc oxide is nanometer Line morphology, a diameter of 80 to 120 nanometers.
- 3. a kind of carbon fiber/epoxy resin prepreg as claimed in claim 1, it is characterised in that described non-starching and surface Polyacrylonitrile-based carbon fibre long filament without groove structure is the polyacrylonitrile-based carbon fibre prepared using dry-jet wet spinning process.
- 4. a kind of carbon fiber/epoxy resin prepreg as claimed in claim 1, it is characterised in that described non-starching and surface Polyacrylonitrile-based carbon fibre long filament without groove structure is that carbon fiber length is not less than 20 centimetres.
- 5. a kind of carbon fiber/epoxy resin prepreg as claimed in claim 1, it is characterised in that described fibre reinforced is double Maleimide composite wood feed powder is to grind what is obtained by the waste and old carbon fiber reinforced bismalemide composite reclaimed, should The D50 of powder particle size distribution value is 1 to 5 micron, and the mass fraction of bimaleimide resin is 35%-45% in powder, and And the powder is dispersed in AG-80 epoxy resin or ZEP-001 epoxy resin.
- A kind of 6. preparation method of carbon fiber/epoxy resin prepreg as described in claim any one of 1-5, it is characterised in that Comprise the following steps：（1）Using graphite as wire deflector roll in zinc oxide nanowire grows groove, using unsized carbon fiber filament as anode, with full It is reference electrode with calomel electrode, using the gold thread of a diameter of 50-60 microns as negative electrode, three is placed in zinc oxide nanowire life Below the reaction solution liquid level of elongated slot, it is powered by D.C. regulated power supply to three, control puts on the voltage of carbon fibre tow It it is -1.1~-1.3 volts relative to reference electrode, between 80-85 DEG C, the reaction time is reaction solution temperature control 35-45 minutes, afterwards tow entrance are placed with the deionized water rinse bath of supersonic generator, control supersonic generator Power is 10-30 watts, is dried after cleaning into drying box, and it is 100-150 DEG C to control drying temperature, and drying time is 3-5 minutes；（2）Tow after drying enters aminofunctional groove, and it is 0.5-0.8 moles every liter that concentration is filled in groove C6H5NHCH2Si(OCH2CH3)3Or NH2(CH2CH2NH)2(CH2)3Si(OCH3)3One kind in the aqueous solution, and by acetic acid or Person's hydrochloric acid adjusts its pH value between 4-5, and it is 30-40 minutes to control reaction time of the tow in aminofunctional groove, then Tow is dried into drying box at 60-80 DEG C；（3）By 4,4 '-diaminodiphenyl ether or 4,4 '-MDA is dissolved in acetone, is configured to mass fraction and is 20%-40% solution, and by the proportioning of carbon fiber/epoxy resin prepreg each component, AG-80 epoxies are added in the solution Resin or ZEP-001 epoxy resin, and carbon fiber reinforced bismalemide composite powder, poured into after stirring In steeping vat, and supersonic generator is placed with steeping vat, it is 100-150 watts to control operating power, then step（2） Tow after drying enters in steeping vat, and it is the 10-20 seconds to control the impregnation time, and tow tension is 160-200 grams, after impregnation Tow removes unnecessary resin adhesive liquid by a spreading roller；（4）Step（3）Tow after impregnation arranges silk by way of arranging silk machine using winding, winds layer 2-4, shape repeatedly altogether Into unidirectional prepreg cloth；（5）Prepreg cloth is removed, the vacuum drying 6-12 hours under the conditions of 40-60 DEG C, then under the conditions of 100-120 DEG C 4-6 hours are dried, obtain carbon fiber/epoxy resin prepreg.
- 7. a kind of preparation method of carbon fiber/epoxy resin prepreg as claimed in claim 6, it is characterised in that described is anti- Answer comprising the zinc nitrate or zinc carbonate that concentration is 1.5-2.0 moles every liter in solution, concentration is the six of 1.5-2.0 moles every liter Methenamine or sodium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456879.5A CN105061995B (en) | 2015-07-29 | 2015-07-29 | Carbon fiber/epoxy resin prepreg and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456879.5A CN105061995B (en) | 2015-07-29 | 2015-07-29 | Carbon fiber/epoxy resin prepreg and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105061995A CN105061995A (en) | 2015-11-18 |
| CN105061995B true CN105061995B (en) | 2017-11-17 |
Family
ID=54491532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510456879.5A Active CN105061995B (en) | 2015-07-29 | 2015-07-29 | Carbon fiber/epoxy resin prepreg and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105061995B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3027546B1 (en) | 2014-10-24 | 2017-07-21 | Porcher Ind | POWDERED MACHINES BY ELECTROSTATIC PROCESS |
| CN106336618A (en) * | 2016-09-12 | 2017-01-18 | 中电科芜湖钻石飞机制造有限公司 | High-heat-conductivity carbon fiber composite material and preparation method thereof |
| CN106832752A (en) * | 2017-01-05 | 2017-06-13 | 厦门复晟复合材料有限公司 | A kind of carbon fiber epoxy prepreg |
| CN108149295A (en) * | 2017-12-26 | 2018-06-12 | 北京派尔特医疗科技股份有限公司 | Semi-automatic silk material differential arc oxidation system and its oxidation, cleaning equipment and method |
| CN111118669A (en) * | 2019-12-30 | 2020-05-08 | 中复神鹰碳纤维有限责任公司 | Preparation method of wear-resistant carbon fiber for high-tension winding |
| CN114683583A (en) * | 2022-03-21 | 2022-07-01 | 中山市卡邦碳纤维材料制品有限公司 | Winding type carbon fiber pipe and processing technology thereof |
| CN116716016B (en) * | 2023-06-30 | 2024-01-30 | 史丹龙涂料（常州）有限公司 | Moisture-proof and dust-proof epoxy paint for wood and preparation method thereof |
| CN116892117B (en) * | 2023-09-08 | 2024-01-02 | 江苏国望高科纤维有限公司 | Modified copper calcium titanate nanofiber and preparation method and application thereof |
-
2015
- 2015-07-29 CN CN201510456879.5A patent/CN105061995B/en active Active
Non-Patent Citations (4)
| Title |
|---|
| Increased Interface Strength in Carbon Fiber Composites through a ZnO Nanowire Interphase;By Yirong Lin et al;《Adv. Funct. Mater.》;20091231;第19卷;第2654–2660页 * |
| 水热法在碳纤维表面生长ＺｎＯ纳米线及性能研究;原浩杰等;《化工新型材料》;20140531;第42卷(第5期);第43-45页 * |
| 热固性聚合物基复合材料废弃物回收利用进展;曾一铮等;《广州化学》;20090630;第34卷(第2期);第54-60页 * |
| 高性能T800碳纤维复合材料树脂基体;陈伟明等;《复合材料学报》;20060831;第23卷(第4期);第29-35页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105061995A (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105061995B (en) | Carbon fiber/epoxy resin prepreg and its preparation method | |
| CN105696098B (en) | A kind of monofilament nanometer silk fiber and preparation method thereof that Strengthening and Toughening is modified | |
| CN102995223B (en) | Manufacturing method of ultraviolet-proof shell fabric | |
| CN105274706A (en) | Method for preparing polyurethane glass fiber complex fiber cloth | |
| CN112779783B (en) | Preparation method of polyimide mesh fabric | |
| CN104695109A (en) | Wool, cashmere/bamboo charcoal fiber blended fabric manufacturing method | |
| CN108149337A (en) | A kind of graphene Jinlun-6 fireproof fiber and preparation method thereof | |
| CN114717704B (en) | Antibacterial and antistatic polyurethane composite yarn and preparation method and integrated device thereof | |
| CN106319929B (en) | A kind of preparation method of ageing-resistant silk fiber | |
| CN110158346B (en) | Polyimide fiber paper-based insulating material and preparation method thereof | |
| CN107475858A (en) | A kind of preparation method of durable Uvr Protective Fabric | |
| CN106566208B (en) | The non-conductive light-duty fishing rod composite material of high tenacity | |
| CN108277548A (en) | A kind of graphene terylene fire resistance fibre and preparation method thereof | |
| CN106480538B (en) | A kind of quantum dot/regenerated silk fiber and preparation method thereof based on electrostatic spinning | |
| CN109930283A (en) | Antibiotic radiation proof silk fabric and preparation method thereof | |
| CN106426975B (en) | A kind of preparation process of compound fishing rod | |
| CN109629235A (en) | Superfine mulberry silk fiber silk scarf fabrics | |
| CN106436277B (en) | A kind of finishing agent and its preparation and method for sorting based on rare earth element and nanogold | |
| CN109322148B (en) | Nano crease-resistant finishing process for wool fabric | |
| CN112281276A (en) | Polyester fiber fabric and preparation method thereof | |
| CN105970334A (en) | High-strength artificial wig fibers containing modified nano peacock feathers | |
| CN111809271A (en) | High-performance nano ceramic uvioresistant high-thermal insulation fiber and preparation method thereof | |
| CN112030318A (en) | Nylon fabric and preparation method thereof | |
| CN109505048A (en) | Based on superfine mulberry silk fiber/silk tussah fibre silk scarf fabrics | |
| CN116396590A (en) | Electrostatic spinning functional prepreg containing nano particles and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |