CN108864685A - A kind of interfacial assembly structure and method improving thermoplasticity carbon fibre composite mechanical property - Google Patents
A kind of interfacial assembly structure and method improving thermoplasticity carbon fibre composite mechanical property Download PDFInfo
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- CN108864685A CN108864685A CN201810602686.XA CN201810602686A CN108864685A CN 108864685 A CN108864685 A CN 108864685A CN 201810602686 A CN201810602686 A CN 201810602686A CN 108864685 A CN108864685 A CN 108864685A
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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
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
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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
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2371/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08J2371/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08J2371/12—Polyphenylene oxides
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- 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
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
Abstract
The present invention provides a kind of methods for improving thermoplasticity carbon fibre composite mechanical property, it includes the following steps：A, graphene oxide is evenly dispersed in water to get graphene oxide solution；B, carbon fiber is dispersed in graphene oxide solution obtained by step a, it is dry to coat carbon fiber to get graphene oxide；C, by after graphene oxide cladding carbon fiber and polyphenylene oxide melt blending up to composite material.The results show has high-mechanical property using the polyphenylene sulfide that the method for the present invention is prepared, and compared with unmodified polyphenylene sulfide, 116% and 193% has been respectively increased with Young's modulus in tensile strength；Compared with the polyphenylene sulfide of carbon fiber modifying, 13% and 17% is respectively increased, application prospect is good.
Description
Technical field
The present invention relates to a kind of preparation methods of composite material, and in particular to a kind of raising thermoplasticity carbon fibre composite
The interfacial assembly structure and method of mechanical property.
Background technique
Polyphenylene sulfide English is abbreviated as PPS, is a kind of novel high-performance thermoplastic resin, has high mechanical strength, resistance to height
Temperature, chemical resistance, the advantages that fire retardant, thermal stability is good, excellent electrical properties.It, can be strong to its in order to widen its application range
Degree or toughness improve.Currently, generalling use glass fibre, carbon fiber or aramid fiber carrys out modified polyphenyl thioether, improve
Its intensity.
Compared with the modified polyphenylene sulfide of glass fibre, aramid fiber, had more using the polyphenylene sulfide of carbon fiber modifying
Excellent comprehensive performance.But since carbon fiber has chemical inertness, and the interfacial wettability with most of resin matrixes
Difference causes it that the mechanical performance of polyphenylene sulfide cannot be greatly improved, so that the application of polyphenylene sulfide is restricted.
There is through interface modifier a report for improving polyphenyl thioether composite material mechanical performance at present, but improvement
Generally, e.g., document《Open the influence of female equal interface modifier poly-p-phenylene sulfide ether/carbon fibre composite mechanics and thermodynamic property
[J] plastics industry, 2013 (1):100-103》Disclose the mechanics for improving polyphenylene sulfide using epoxy acetone as interface modifier
Performance, still, tensile strength improve only 3.4%, and it is not significant to promote amplitude.
Summary of the invention
In order to solve problems in the prior art, the present invention provides a kind of raising thermoplasticity carbon fibre composite mechanical property
The method of energy, it includes the following steps：
A, graphene oxide is evenly dispersed in water to get graphene oxide solution；
B, carbon fiber is dispersed in graphene oxide solution obtained by step a, it is dry to get graphene oxide cladding
Carbon fiber；
C, by after graphene oxide cladding carbon fiber and polyphenylene oxide melt blending up to composite material.
Further, in step a, the w/v of the graphene oxide and water is 0.1~1:500g/ml；It is described
It is separated into ultrasonic disperse, dispersion condition is to be ultrasonically treated 1h with frequency 40kHz.
Further, in step b, in the carbon fiber of the graphene oxide cladding, the weight of graphene oxide and carbon fiber
Amount is than being 0.1~1:15~40；
Further, the weight ratio of the graphene oxide and carbon fiber is 0.1~1:15.
Further, described to be separated into ultrasonic disperse in step b, dispersion condition is to be ultrasonically treated 1h with frequency 20kHz；
Further, in step b, the temperature of the drying is 120 DEG C.
Further, in step c, the carbon fiber of the graphene oxide cladding and the weight ratio of polyphenylene sulfide are：Oxidation
60~85 parts of 15.1~41 parts of carbon fiber, the polyphenylene sulfide of graphene coated.
Further, the carbon fiber of the graphene oxide cladding and the weight ratio of polyphenylene sulfide are：Graphene oxide packet
15.1~16 parts of the carbon fiber covered, 84~84.9 parts of polyphenylene sulfide.
Further, in step c, the melt blending refers to the injection molding again of first extruding pelletization.
Further, when extrusion, the temperature of each section of feeding section to mouth mold is respectively 265 DEG C, 290 DEG C, 295 DEG C, 300 DEG C,
300 DEG C, 300 DEG C, 300 DEG C and 300 DEG C；When injection molding, the temperature of feeding section to nozzle is respectively set to 265 DEG C, 295 DEG C, 295
DEG C, 300 DEG C and 300 DEG C.
The results show has high-mechanical property using the polyphenylene sulfide that the method for the present invention is prepared, stretches strong
Compared with unmodified polyphenylene sulfide, 116% and 193% has been respectively increased with Young's modulus in degree；With the polyphenyl of carbon fiber modifying
Thioether is compared, and 13% and 17% has been respectively increased, and application prospect is good.
Obviously, above content according to the present invention is not being departed from according to the ordinary technical knowledge and customary means of this field
Under the premise of the above-mentioned basic fundamental thought of the present invention, the modification, replacement or change of other diversified forms can also be made.
The specific embodiment of form by the following examples remakes further specifically above content of the invention
It is bright.But the range that this should not be interpreted as to the above-mentioned theme of the present invention is only limitted to example below.It is all to be based on above content of the present invention
The technology realized all belongs to the scope of the present invention.
Detailed description of the invention
Fig. 1 is to coat carbon fiber according to graphene oxide, carbon fiber and 1wt% graphene oxide in the embodiment of the present invention 1
Fourier's infrared spectrum of dimension.
Fig. 2 is the raman spectrum that carbon fiber is coated according to carbon fiber in the embodiment of the present invention 1 and 1wt% graphene oxide.
Fig. 3 is that the heat for coating carbon fiber according to graphene oxide, carbon fiber and graphene oxide in the embodiment of the present invention 1 is lost
Weight curve graph.
Fig. 4 be according in test example 1 of the present invention in polyphenyl thioether composite material carbon fiber distribution of lengths statistical chart.
Fig. 5 is according to pure polyphenylene sulfide and graphene oxide and fibre reinforced polyphenylene sulfide in test example 1 of the present invention
The tensile fracture-surface figure of composite material.Wherein (a) is PPS, is (b) GO/PPS, is (c) CF/PPS, is (d) GO/CF/PPS,
(e) it is 0.1GO-CF/PPS, is (f) 0.3GO-CF/PPS, be (g) 0.5GO-CF/PPS, is (h) 1GO-CF/PPS.
Fig. 6 is according to polyphenylene sulfide in test example 1 of the present invention and variety classes graphene oxide or fibre reinforced polyphenyl
The DSC melting curve of thioether composite material.
Fig. 7 is according to polyphenylene sulfide in test example 1 of the present invention and variety classes graphene oxide or fibre reinforced polyphenyl
The DSC crystallisation by cooling curve of thioether composite material.
Fig. 8 is compound according to graphene oxide contents cladding fibre reinforced polyphenylene sulfides different in test example 1 of the present invention
The tensile strength and Young's modulus figure of material.
Fig. 9 is the graphene oxide and fibre reinforced polyphenylene sulfide according to addition manners different in test example 1 of the present invention
The tensile strength and Young's modulus figure of composite material.
Figure 10 is compound according to graphene oxide contents cladding fibre reinforced polyphenylene sulfides different in test example 1 of the present invention
The bending strength and bending die spirogram of material.
Figure 11 is the graphene oxide and fibre reinforced polyphenylene sulfide according to addition manners different in test example 1 of the present invention
The bending strength and bending die spirogram of composite material.
Specific embodiment
Raw material, equipment used in the specific embodiment of the invention are known product, are obtained by purchase commercial product.
The preparation of embodiment 1, polyphenyl thioether composite material of the present invention
One, the preparation method of composite material of the present invention
1, the preparation of graphene oxide cladding carbon fiber
According to ratio shown in table 1,0.1~1g of graphene oxide is taken to be added in 500ml deionized water, it is super in 40kHz rod-type
Sound instrument is ultrasonically treated 1h, keeps graphene oxide evenly dispersed, obtains graphene oxide solution；Then, take 15g carbon fiber that oxidation is added
In graphene solution, it is ultrasonically treated 1h in 20kHz ultrasonic water bath, is placed in 100 DEG C of convection oven and heats later
72h finally obtains graphene oxide cladding carbon fiber.
1 raw material proportioning of table
| Graphene oxide (wt%) | Carbon fiber (wt%) | Polyphenylene sulfide (wt%) | |
| 0.1GO-CF/PPS | 0.1 | 15 | 84.9 |
| 0.3GO-CF/PPS | 0.3 | 15 | 84.7 |
| 0.5GO-CF/PPS | 0.5 | 15 | 84.5 |
| 1GO-CF/PPS | 1.0 | 15 | 84 |
2, the preparation of polyphenyl thioether composite material
According to ratio shown in table 1, load weighted polyphenylene sulfide is added from the main feed opening of extruder, by graphene coated
Carbon fiber is added and pelletizing after polyphenylene sulfide blended extrusion, temperature of each section of the extruder from feeding section to mouth mold point from side spout
It is not set as 265 DEG C, 290 DEG C, 295 DEG C, 300 DEG C, 300 DEG C, 300 DEG C, 300 DEG C and 300 DEG C.Then pellet extrusion obtained
It is molded to obtain and tests required sample, injection grade temperature is respectively set to 265 DEG C, 295 DEG C, 295 from feeding section to nozzle
DEG C, 300 DEG C and 300 DEG C, batten is subjected to annealing 4h in 120 DEG C of convection oven after injection molding.
Two, the nature examination of composite material of the present invention
Infrared spectroscopy, Raman spectrum and thermal weight loss characterization are carried out to graphene oxide cladding carbon fiber, as a result such as Fig. 1~figure
Shown in 3.
It can be seen that from the infrared spectrogram (Fig. 1) of graphene oxide cladding carbon fiber in 3407.2cm-1Place is oxidation stone
The bending vibration of carboxylic acid groups existing for black alkene surface and the characteristic peak of hydrone, 2916.2cm-1It is not right to locate C-H in corresponding alkyl
Claim stretching vibration peak, 2850.3cm-1Place represents the symmetrical stretching vibration peak of C-H in alkyl, in 1721.8cm-1Place is in carboxyl
The appearance of carbonyl, and 1628.5cm-1Place then corresponds to the stretching vibration absworption peak of carbon-carbon double bond.In addition, the feature of graphene oxide
Peak, i.e. 1375.5cm-1Place and 1051.2cm-1The appearance at place can be attributed to the bending vibration of C-OH and the bending vibration of O-H respectively
It is dynamic.The appearance of these characteristic peaks shows that used graphene oxide has certain degree of oxidation and has difference abundant
Type oxygen-containing functional group.In the spectrogram of 1wt.% graphene oxide cladding carbon fiber, it can be observed that in 1721.0cm-1With
1630.4cm-1Appearance at two is respectively the appearance of carbonyl and carbon-carbon double bond, in 1051.9cm-1Also there is apparent hydroxyl at place
Flexural vibrations peak.Show compared with untreated carbon fiber, it is obvious that graphene oxide coats carbon fiber surface oxygen-containing functional group type
Increase.
From the raman spectrum (Fig. 2) of graphene oxide cladding carbon fiber as can be seen that carbon fiber is in 1364cm-1With
1597cm-1The appearance at place is the appearance of D band and G band respectively, and 1wt.% graphene oxide coats carbon fiber going out in D band and G band
Peak position is then respectively 1352cm-1And 1581cm-1Place.In general, the intensity rate (I of D band and G bandD/IG) be used to measure
The sophistication of crystallinity or carbon structure, ID/IGRatio is bigger, shows that the defect level of carbon structure is higher, reactivity is also got over
It is high.The I of graphene oxide cladding carbon fiberD/IGRatio, which increases, illustrates that the reactivity of modified carbon fiber increases.
From the thermogravimetric curve figure (Fig. 3) of graphene oxide cladding carbon fiber as can be seen that graphene oxide is on 100 DEG C of left sides
There is Mass lost by a small margin when right, weight loss rate reaches peak value at 155.6 DEG C；And the whole weightless quality of carbon fiber is smaller；Oxygen
Graphite alkene coats the residual important more slightly lower than untreated carbon fiber of carbon fiber.
Beneficial effects of the present invention are illustrated below by way of test example.
Test example 1, performance test
1, test material：
Material of the present invention：0.1GO-CF/PPS, 0.3GO-CF/PPS, 0.5GO-CF/PPS and 1GO- prepared by embodiment 1
CF/PPS。
Contrast material：
Comparative example 1, the preparation of graphene oxide/polyphenyl thioether composite material
The graphene oxide of 1wt% and the polyphenylene sulfide blended extrusion of 99wt% are weighed, GO/PPS is named as.Comparative example 2,
The preparation of carbon fiber/polyphenyl thioether composite material
The carbon fiber of 15wt% and the polyphenylene sulfide blended extrusion of 85wt% are weighed, CF/PPS is named as.
Comparative example 3, graphene oxide/carbon fiber/polyphenyl thioether composite material preparation
Weigh 1wt% graphene oxide and 84wt% it is polyphenylene sulfide blended after from major ingredient mouth be added, then from side feed material
The carbon fiber blending extrusion of 15wt% is added in mouth, is named as GO/CF/PPS.
2, test method
1) scanning electron microscope (SEM) is tested
Sample to be tested is placed in vacuum after the metal spraying of surface, the scanning electricity of Japan Electronics Corporation model JSM9600 is used
Sub- microscope observes the internal microstructure of sample, acceleration voltage 5.0kV.
2) composite inner fiber length counts
Composite material granular after extrusion molding is placed in Muffle furnace the calcination 2h under the conditions of 800 DEG C and removes PPS resin
Afterwards, remnant fibrous is collected and is observed by SEM, each sample shoots 20 SEM photographs, is handled later using image measurement soft
Part is for statistical analysis to fiber in each sample, and each sample is no less than 500 fibers.
3) differential scanning calorimetry (DSC) is tested
Using the differential scanning calorimeter for the model DSC-204 that German Netzsch company produces, 8-10mg sample is weighed,
300 DEG C of constant temperature 5min are warming up to the rate of 10 DEG C/min from room temperature under nitrogen protection and eliminate thermal histories, then with 10 DEG C/
The rate of temperature fall of min drops to room temperature, then is raised to 300 DEG C with the rate of 10 DEG C/min.
4) tensile property is tested
Using Instron5567 universal testing machine, according to the tensile property of GB/T1040.2-2006 test sample.
Sample is a length of 150mm, and width 10mm, thickness is the dumbbell shape batten of 4mm, tensile speed 50mm/min.
5) bending property is tested
Using Instron5567 universal testing machine, according to the bending property of GB/T9341-2008 test sample.Sample
Product are a length of 80mm, and width 10mm, thickness is the cuboid batten of 4mm, rate of bending 10mm/min.
3, test result
(1) fiber length distribution statisticallys analyze
The number average fiber length and monodispersity index of carbon fiber in 2 PPS composite material of table
| Material | Number average fiber length (μm) | Monodispersity index |
| CF/PPS (preparation of comparative example 2) | 148.50 | 1.32 |
| GO/CF/PPS (preparation of comparative example 3) | 159.35 | 1.30 |
| 0.1GO-CF/PPS (material of the present invention) | 183.83 | 1.23 |
| 0.3GO-CF/PPS (material of the present invention) | 165.50 | 1.20 |
| 0.5GO-CF/PPS (material of the present invention) | 172.40 | 1.17 |
| 1GO-CF/PPS (material of the present invention) | 190.23 | 1.15 |
By Fig. 4 and table 2 it is found that the carbon fiber length in the GO-CF/PPS of four kinds of different graphene oxide contents is mainly divided
Cloth is in 151-300 μm of section.From the point of view of average length, the average length of carbon fiber is lower in CF/PPS and GO/CF/PPS, and four
In the GO-CF/PPS of kind different graphene oxide contents the average length of carbon fiber then increases, wherein 1GO-CF/PPS
Carbon fiber average length reaches 190.23 μm of maximum value.
The experiment results show that the average fiber length of material of the present invention is longer.
(2) scanning electron microscope (SEM) is analyzed
As can be seen that the Tensile fracture of polyphenylene sulfide is relatively smooth smooth from Fig. 5 (a)；Tensile fracture is then in Fig. 5 (b)
Become more out-of-flatness；For CF/PPS and GO/CF/PPS in Fig. 5 (c) (d), it can be observed that carbon fiber and polyphenyl
Combination between thioether matrix is not close, and gap and carbon fiber between carbon fiber and matrix can be observed at sample section
The hole left after extraction；From in Fig. 5 (e) (f) (g) as can be seen that being tightly combined between carbon fiber and polyphenylene sulfide matrix,
There is no gap after spike protein gene between matrix.It is observed that remaining in the polyphenylene sulfide of carbon fiber surface from Fig. 5 (h)
Matrix size is larger.This is because the polarity of graphene oxide can provide good wellability for carbon fiber, so that polyphenylene sulfide
Ether body can penetrate into the defect and hole of carbon fiber surface, formed it is effective mechanical interlocked, thus enhance carbon fiber with
Interface cohesion effect between polyphenylene sulfide matrix.
The experiment results show that it is closer through the graphene oxide combination that treated between carbon fiber and polyphenylene sulfide, into
One step illustrates the interface cohesion strength enhancing of the two.
(3) differential scanning calorimetry (DSC) is analyzed
The pure PPS of table 3 and PPS composite material DSC characteristic
By Fig. 6, Fig. 7 and table 3 it is found that the common addition of either graphene oxide or carbon fiber or both, not
Can make the melting temperature of polyphenylene sulfide has significant change.For maximum crystallization temperature, the simple CF/PPS that carbon fiber is added
180.0 DEG C compared to pure polyphenylene sulfide have been increased to 210.8 DEG C, and the GO/PPS that graphene oxide is only added then makes maximum knot
Brilliant temperature is further increased to 220.4 DEG C on this basis.Graphene oxide cladding carbon fiber, which is added, then makes maximum crystallization temperature
Degree is increased to 222 ± 1 DEG C.
The experiment results show that the maximum crystallization temperature and crystalline rate of polyphenyl thioether composite material of the invention mention
It is high.
(4) tensile property is analyzed
As shown in Figure 8, the tensile strength of CF/PPS is lower, only 151.38MPa.Using graphene oxide to carbon fiber into
The tensile strength and Young's modulus of poly-p-phenylene sulfide ether are obviously improved effect after the processing of row cladding, and with graphene oxide
The increase of covering amount and ascendant trend is presented, when carbon fiber surface cladding graphene oxide content reach 1wt.% when, it is compound
The tensile strength of material then reaches maximum value 170.62MPa, promotes amplitude 12.7%, Young's modulus at this time is also compared to CF/
PPS's improves 17.3%
As shown in Figure 9, individually the mechanical property of addition graphene oxide poly-p-phenylene sulfide ether has little effect.Individually addition
Carbon fiber can increase substantially the tensile strength of polyphenylene sulfide, and the tensile strength and Young's modulus of CF/PPS is respectively from pure polyphenylene sulfide
151.14MPa and 6268.30MPa have been arrived in 78.84MPa and the 2508.44MPa promotion of ether, and promotion amplitude respectively reaches 91.7%
With 149.9%.And add the GO/CF/PPS of graphene oxide simultaneously on the basis of individually addition carbon fiber, tensile property phase
Than being then declined slightly in CF/PPS, tensile strength and Young's modulus are respectively 148.89MPa and 5921.52MPa.It is aoxidized when changing
The adding manner of graphene, i.e., by the way that graphene oxide is coated to the 1GO-CF/ for further rising after carbon fiber surface and being added and obtaining
PPS is compared with identical graphene oxide with the GO/CF/PPS of carbon fiber additive amount, and tensile strength and Young's modulus then have
It is obviously improved, respectively reaches 170.60MPa and 7343.93MPa, respectively reached compared to amplitude is promoted with pure polyphenylene sulfide
116.39% and 192.77%.
The experiment results show that polyphenyl thioether composite material of the invention compared to unmodified polyphenylene sulfide, stretch strong
116% and 193% has been respectively increased with Young's modulus in degree；Compared with the polyphenylene sulfide of carbon fiber modifying, it is respectively increased 13%
With 17%, it is obvious to promote amplitude.
(5) bending property is analyzed
As shown in Figure 10, after carrying out the processing of graphene oxide cladding to carbon fiber, the promotion width of polyphenylene sulfide bending property
Degree will be generally higher than simple carbon fiber enhanced polyphenylene sulfide composite material, and the bending strength of composite material is with oxidation stone
The promotion of black alkene covering amount and increase.When only adding carbon fiber, the bending strength of CF/PPS is 182.81MPa, and 1GO-CF/
The bending strength of PPS has then reached 203.65MPa, and promotion amplitude has reached 11.4%.
As shown in Figure 11, individually addition graphene oxide is declined slightly the bending property of polyphenylene sulfide.It introduces
After carbon fiber, most excellent performance is 1GO-CF/PPS, promotes amplitude compared to its bending strength of pure polyphenylene sulfide
Reach 57%.
The experiment results show that polyphenyl thioether composite material of the invention compared to unmodified polyphenylene sulfide, bending is strong
Degree improves 56.65%；Compared with the polyphenylene sulfide of carbon fiber modifying, 11.4% is improved, it is obvious to promote amplitude.
Through the graphene oxide interface that treated between carbon fiber and polyphenylene sulfide it can be seen from above-mentioned experimental result
Binding force enhancing.Polyphenyl thioether composite material of the invention compared to unmodified polyphenylene sulfide, tensile strength, Young's modulus
116%, 193% and 56.65% has been respectively increased with bending strength；Compared with the polyphenylene sulfide of carbon fiber modifying, tensile strength,
Young's modulus and bending strength have been respectively increased 13%, 17% and 11.4%.Illustrate that the polyphenylene sulfide that the present invention is prepared is multiple
Condensation material has superior mechanical performance.
To sum up, the polyphenylene sulfide being prepared using the method for the present invention is stretched strong compared to unmodified polyphenylene sulfide
Degree, Young's modulus and bending strength have been respectively increased 116%, 193% and 56.65%；With the polyphenylene sulfide phase of carbon fiber modifying
Than tensile strength, Young's modulus and bending strength have been respectively increased 13%, 17% and 11.4%, and application prospect is very good.
Claims (10)
1. a kind of method for improving thermoplasticity carbon fibre composite mechanical property, it is characterised in that：It includes the following steps：
A, graphene oxide is evenly dispersed in water to get graphene oxide solution；
B, carbon fiber is dispersed in graphene oxide solution obtained by step a, it is dry to coat carbon fiber to get graphene oxide
Dimension；
C, by after graphene oxide cladding carbon fiber and polyphenylene oxide melt blending up to composite material.
2. according to the method described in claim 1, it is characterized in that：In step a, the bulking value of the graphene oxide and water
Than being 0.1~1:500g/ml；Described to be separated into ultrasonic disperse, dispersion condition is to be ultrasonically treated 1h with frequency 40kHz.
3. method according to claim 1 or 2, it is characterised in that：In step b, the carbon fiber of the graphene oxide cladding
In dimension, the weight ratio of graphene oxide and carbon fiber is 0.1~1:15~40.
4. according to the method described in claim 3, it is characterized in that：The weight ratio of the graphene oxide and carbon fiber is 0.1
~1:15.
5. method according to any one of claims 1 to 4, it is characterised in that：It is described to be separated into ultrasonic disperse in step b,
Dispersion condition is to be ultrasonically treated 1h with frequency 20kHz.
6. described in any item methods according to claim 1~5, it is characterised in that：In step b, the temperature of the drying is 120
℃。
7. described in any item methods according to claim 1~6, it is characterised in that：In step c, the graphene oxide cladding
Carbon fiber and the weight ratio of polyphenylene sulfide be：15.1~41 parts of carbon fiber, the polyphenylene sulfide 60~85 of graphene oxide cladding
Part.
8. according to the method described in claim 7, it is characterized in that：The carbon fiber and polyphenylene sulfide of the graphene oxide cladding
Weight ratio be：15.1~16 parts of carbon fiber, 84~84.9 parts of the polyphenylene sulfide of graphene oxide cladding.
9. described in any item methods according to claim 1~8, it is characterised in that：In step c, the melt blending refers to elder generation
Extruding pelletization injection molding again.
10. according to the method described in claim 9, it is characterized in that：When extrusion, the temperature of each section of feeding section to mouth mold is respectively
265 DEG C, 290 DEG C, 295 DEG C, 300 DEG C, 300 DEG C, 300 DEG C, 300 DEG C and 300 DEG C；When injection molding, the temperature point of feeding section to nozzle
It is not set as 265 DEG C, 295 DEG C, 295 DEG C, 300 DEG C and 300 DEG C.
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| CN111269528A (en) * | 2020-01-22 | 2020-06-12 | 青岛德通纳米技术有限公司 | Preparation method of light high-strength graphene carbon fiber reinforced composite material |
| CN111676698A (en) * | 2020-07-27 | 2020-09-18 | 四川大学 | Modified carbon fiber with composite mechanical interlocking structure interface and composite material thereof |
| CN113293605A (en) * | 2021-07-02 | 2021-08-24 | 四川大学 | Method for improving interface performance of resin matrix and carbon fiber |
| CN114907591A (en) * | 2022-05-27 | 2022-08-16 | 福州大学 | Reduced graphene oxide coated carbon fiber reinforced nylon 12 composite material for MJR3D printing and preparation method and application thereof |
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| WO2007058169A1 (en) * | 2005-11-15 | 2007-05-24 | Asahi Kasei Chemicals Corporation | Heat-resistant resin composition |
| CN105542728A (en) * | 2016-01-24 | 2016-05-04 | 北京大学 | Method for preparing vertical orientation graphene sheet/high polymer thermal interface material |
| CN105778502A (en) * | 2016-03-24 | 2016-07-20 | 中国科学院理化技术研究所 | Preparation method for graphene oxide treated hybrid chopped fiber reinforced polyether sulfone composite material |
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| CN109810349A (en) * | 2019-01-28 | 2019-05-28 | 湖南凌辉环保新材料科技有限公司 | A kind of anticorrosive impact resistance septic tank composite material and preparation method |
| CN111269528A (en) * | 2020-01-22 | 2020-06-12 | 青岛德通纳米技术有限公司 | Preparation method of light high-strength graphene carbon fiber reinforced composite material |
| CN111676698A (en) * | 2020-07-27 | 2020-09-18 | 四川大学 | Modified carbon fiber with composite mechanical interlocking structure interface and composite material thereof |
| CN113293605A (en) * | 2021-07-02 | 2021-08-24 | 四川大学 | Method for improving interface performance of resin matrix and carbon fiber |
| CN114907591A (en) * | 2022-05-27 | 2022-08-16 | 福州大学 | Reduced graphene oxide coated carbon fiber reinforced nylon 12 composite material for MJR3D printing and preparation method and application thereof |
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