CN116554638A - Conductive indium-doped tin oxide and polyether-ether-ketone composite material and preparation method thereof - Google Patents
Conductive indium-doped tin oxide and polyether-ether-ketone composite material and preparation method thereof Download PDFInfo
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- 239000004696 Poly ether ether ketone Substances 0.000 title claims abstract description 63
- 229920002530 polyetherether ketone Polymers 0.000 title claims abstract description 63
- 239000002131 composite material Substances 0.000 title claims abstract description 36
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910001887 tin oxide Inorganic materials 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 162
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000004094 surface-active agent Substances 0.000 claims abstract description 41
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 40
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- 239000002994 raw material Substances 0.000 claims abstract description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
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- 238000007731 hot pressing Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
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- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
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- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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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- 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
- C08K9/04—Ingredients treated with organic substances
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- 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
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2231—Oxides; Hydroxides of metals of tin
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/011—Nanostructured additives
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
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Abstract
The invention discloses a conductive indium-doped tin oxide and polyether-ether-ketone composite material and a preparation method thereof, wherein the conductive indium-doped tin oxide and polyether-ether-ketone composite material comprises the following raw materials: PEEK molding powder, modified nano ITO powder and modified carbon fiber powder; the modified nano ITO powder is obtained by modifying nano ITO powder by a surfactant; the modified carbon fiber powder is obtained by modifying carbon fiber powder by a surfactant; according to the invention, the nano ITO and the carbon fiber are subjected to surface modification in advance, so that the interface performance in a high polymer substrate is improved, the compatibility is improved, and the mixing uniformity is effectively improved. The antistatic material has low resistivity, good antistatic property, and the synergistic effect of nano ITO powder and carbon fiber improves the wear resistance and antistatic effect as a whole.
Description
Technical Field
The invention relates to the field of conductive materials, in particular to a conductive indium-doped tin oxide and polyether-ether-ketone composite material and a preparation method thereof.
Background
The invention and popularization of the novel high-performance polymer are important milestones for the technological development of contemporary materials. However, plastic products are prone to static accumulation in daily life, such as dust adhesion, spark generation, fire and the like. In order to prevent and eliminate the influence of the electrostatic effect and protect the electrostatic shielding effect, a method can be adopted in which a conductive substance is filled in a high polymer material to prepare the antistatic composite material.
Polyetheretherketone (PEEK) has achieved remarkable rapid growth in the scientific and commercial fields with excellent overall properties and cost performance as an engineering plastic. However, the application of the polyether-ether-ketone in the special field is restricted by the electrostatic effect caused by the insulation property of the polyether-ether-ketone, so that the performance advantage of the polyether-ether-ketone is fully exerted for further expanding the application of the polyether-ether-ketone, and the antistatic capability is improved.
In the prior art, indium doped tin dioxide (ITO) is an N-type semiconductor material, and is used as a conductive material, so that the conductive material has the characteristics of weather resistance, wear resistance, safety, optical property, thermal property and the like, and has more advantages compared with other conductive materials such as graphite and metal powder. The method is widely applied to the fields of liquid crystal displays, solar cells, catalysts and the like. At present, the nano ITO powder has poor interface compatibility in a high polymer material substrate, and the actual application effect is affected.
Disclosure of Invention
The invention aims to solve the technical problems of providing a conductive indium-doped tin oxide and polyether-ether-ketone composite material and a preparation method thereof, aiming at the defects of the prior art, wherein the conductive indium-doped tin oxide and polyether-ether-ketone composite material has good antistatic property; the preparation method is relatively simple, easy to operate and suitable for industrialization.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a composite material of conductive indium-doped tin oxide and polyether-ether-ketone comprises the following raw materials: PEEK molding powder, modified nano ITO powder and modified carbon fiber powder.
As a further improved technical scheme of the invention, the modified nano ITO powder is obtained by modifying nano ITO powder by a surfactant.
As a further improved technical scheme of the invention, the modified carbon fiber powder is obtained by modifying carbon fiber powder by a surfactant.
As a further improved technical scheme of the invention, the surfactant is one of a silane coupling agent, a titanate coupling agent and an aluminate coupling agent.
As a further improved technical scheme of the invention, the particle size of the modified nano ITO powder is 30-80nm, and the specific surface area is 82m 2 Per gram, bulk density of 0.6g/cm 3 。
As a further improved technical scheme of the invention, the mass fraction of the modified nano ITO powder is 3-10% of the total mass, and the mass fraction of the modified carbon fiber powder is 2-6% of the total mass.
In order to achieve the technical purpose, the invention adopts another technical scheme that:
a preparation method of a conductive indium-doped tin oxide and polyether-ether-ketone composite material comprises the following steps:
step 1, drying PEEK molding powder;
step 2: weighing the dried PEEK molding powder, the modified nano ITO powder and the modified carbon fiber powder according to a certain mass ratio, and mixing; the modified nano ITO powder is obtained by modifying nano ITO powder through a surfactant, and the modified carbon fiber powder is obtained by modifying carbon fiber powder through a surfactant;
step 3: putting the mixed materials into a hot-pressing die cavity, melting, forming under a certain pressure, cooling to a certain temperature, demoulding, and obtaining a blank after demoulding;
step 4: the blank is subjected to heat preservation at a certain temperature, naturally cooled after heat preservation, and then subjected to machining treatment to obtain the conductive indium-doped tin oxide and polyether-ether-ketone composite material.
As a further improved technical scheme of the invention, the method specifically comprises the following steps:
step 1, drying PEEK mould pressing powder at 120 ℃ for 3 hours;
step 2: weighing the dried PEEK molding powder, the modified nano ITO powder and the modified carbon fiber powder according to a certain mass ratio, and mixing in a high-speed mixer for 30min; the modified nano ITO powder is obtained by modifying nano ITO powder through a surfactant, and the modified carbon fiber powder is obtained by modifying carbon fiber powder through a surfactant;
step 3: putting the mixed materials into a hot-pressing die cavity at 380-390 ℃, melting, molding under 15MPa, cooling to 130 ℃, demolding, and obtaining a blank after demolding;
step 4: the blank is kept at 180 ℃ for 3 hours, naturally cooled, and then subjected to machining treatment to obtain the conductive indium-doped tin oxide and polyether-ether-ketone composite material.
As a further improved technical scheme of the invention, the modified nano ITO powder is obtained by modifying nano ITO powder by a surfactant, and specifically comprises the following steps:
weighing 50g of nano ITO powder, vacuum drying for 3 hours, adding the powder into water, shearing the powder for 15 minutes by a high-speed shearing machine, and performing ultrasonic treatment for 1 hour to uniformly disperse the nano ITO powder in the water to obtain a nano ITO dispersion solution;
putting the nano ITO dispersion solution into a three-neck flask, adding a quantitative surface modifier into the three-neck flask, stirring the solution in the three-neck flask at 75 ℃ for 30min, refluxing at 130 ℃ for 6h, and carrying out vacuum suction filtration to obtain a filter cake;
washing the filter cake with absolute ethyl alcohol, vacuum drying for 2h, and grinding to obtain the modified nano ITO powder.
As a further improved technical scheme of the invention, the modified carbon fiber powder is powder obtained by modifying carbon fiber powder by a surfactant, and specifically comprises the following steps:
s11, soaking carbon fiber powder in absolute ethyl alcohol, ultrasonically cleaning for 15min, cleaning with deionized water, drying for 3h in a baking oven at 120 ℃, pretreating the dried carbon fiber powder with 60wt% of concentrated nitric acid, treating for 30min in a water bath at 75 ℃, and cleaning the treated carbon fiber powder with deionized water;
s12, measuring 75% of absolute ethyl alcohol, 20% of surfactant and 15% of deionized water by mass fraction, and mixing and stirring for 30min at normal temperature to obtain surfactant mixed solution;
and S13, placing the carbon fiber powder obtained in the step S11 into a prepared surfactant mixed solution, stirring at 75 ℃ for 2 hours, taking out the carbon fiber powder after the treatment, cleaning and drying to obtain the carbon fiber powder with the modified surface, namely the modified carbon fiber powder for short.
The beneficial effects of the invention are as follows:
the conductive indium-doped tin oxide and polyether-ether-ketone composite material prepared by the invention belongs to an antistatic material, has low resistivity and good antistatic property; according to the invention, nano ITO and carbon fiber powder are subjected to surface modification treatment in advance, so that the interface bonding performance between the nano ITO and carbon fiber powder and a polymer base material (PEEK) is effectively improved, and the compatibility is good. The preparation method is relatively simple, easy to operate and suitable for industrialization. The antistatic material prepared by the invention has the characteristics of good conductivity, chemical resistance, weather resistance, wear resistance, mechanical property and the like.
Detailed Description
The conception and the technical effects produced by the present invention will be clearly and completely described in conjunction with the embodiments below to fully understand the objects, features and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention.
PEEK is in powder shape, and the grain diameter is 100-260nm; the particle diameter of the modified nano ITO powder is 30-80nm, and the specific surface area is 82m 2 Per gram, bulk density of 0.6g/cm 3 Purity was 99%; modified carbon fiber powder with a fiber aspect ratio of 5.62.
Example 1:
a preparation method of a conductive indium-doped tin oxide and polyether-ether-ketone composite material comprises the following steps:
step 1, drying PEEK mould pressing powder at 120 ℃ for 3 hours;
step 2: the mass ratio is 95:3:2, weighing the dried PEEK molding powder, the modified nano ITO powder and the modified carbon fiber powder, and placing the materials into a high-speed mixer to mix for 30min; the modified nano ITO powder is obtained by modifying nano ITO powder through a surfactant, and the modified carbon fiber powder is obtained by modifying carbon fiber powder through a surfactant;
step 3: putting the mixed materials into a hot-pressing die cavity at 380-390 ℃, melting, molding under 15MPa, cooling to 130 ℃, demolding, and obtaining a blank after demolding;
step 4: the blank is kept at 180 ℃ for 3 hours, naturally cooled, and then subjected to machining treatment to obtain the conductive indium-doped tin oxide and polyether-ether-ketone composite material.
Example 2:
a preparation method of a conductive indium-doped tin oxide and polyether-ether-ketone composite material comprises the following steps:
step 1, drying PEEK mould pressing powder at 120 ℃ for 3 hours;
step 2: the mass ratio is 93:5:2, weighing the dried PEEK molding powder, the modified nano ITO powder and the modified carbon fiber powder, and placing the materials into a high-speed mixer to mix for 30min; the modified nano ITO powder is obtained by modifying nano ITO powder through a surfactant, and the modified carbon fiber powder is obtained by modifying carbon fiber powder through a surfactant;
step 3: putting the mixed materials into a hot-pressing die cavity at 380-390 ℃, melting, molding under 15MPa, cooling to 130 ℃, demolding, and obtaining a blank after demolding;
step 4: the blank is kept at 180 ℃ for 3 hours, naturally cooled, and then subjected to machining treatment to obtain the conductive indium-doped tin oxide and polyether-ether-ketone composite material.
Example 3:
a preparation method of a conductive indium-doped tin oxide and polyether-ether-ketone composite material comprises the following steps:
step 1, drying PEEK mould pressing powder at 120 ℃ for 3 hours;
step 2: the mass ratio is 88:10:2, weighing the dried PEEK molding powder, the modified nano ITO powder and the modified carbon fiber powder, and placing the materials into a high-speed mixer to mix for 30min; the modified nano ITO powder is obtained by modifying nano ITO powder through a surfactant, and the modified carbon fiber powder is obtained by modifying carbon fiber powder through a surfactant;
step 3: putting the mixed materials into a hot-pressing die cavity at 380-390 ℃, melting, molding under 15MPa, cooling to 130 ℃, demolding, and obtaining a blank after demolding;
step 4: the blank is kept at 180 ℃ for 3 hours, naturally cooled, and then subjected to machining treatment to obtain the conductive indium-doped tin oxide and polyether-ether-ketone composite material.
Example 4:
a preparation method of a conductive indium-doped tin oxide and polyether-ether-ketone composite material comprises the following steps:
step 1, drying PEEK mould pressing powder at 120 ℃ for 3 hours;
step 2: the mass ratio is 84:10: weighing the dried PEEK molding powder, the modified nano ITO powder and the modified carbon fiber powder, and mixing in a high-speed mixer for 30min; the modified nano ITO powder is obtained by modifying nano ITO powder through a surfactant, and the modified carbon fiber powder is obtained by modifying carbon fiber powder through a surfactant;
step 3: putting the mixed materials into a hot-pressing die cavity at 380-390 ℃, melting, molding under 15MPa, cooling to 130 ℃, demolding, and obtaining a blank after demolding;
step 4: the blank is kept at 180 ℃ for 3 hours, naturally cooled, and then subjected to machining treatment to obtain the conductive indium-doped tin oxide and polyether-ether-ketone composite material.
Examples 1 to 4:
the modified nano ITO powder is obtained by modifying nano ITO powder by a surfactant, and specifically comprises the following steps:
weighing 50g of nano ITO powder, vacuum drying for 3 hours, adding the powder into water, shearing the powder for 15 minutes by a high-speed shearing machine, and performing ultrasonic treatment for 1 hour to uniformly disperse the nano ITO powder in the water to obtain a nano ITO dispersion solution;
putting the nano ITO dispersion solution into a three-neck flask, adding a quantitative surface modifier (the mass ratio of the nano ITO powder to the nano ITO powder is 1:4) into the three-neck flask, stirring the solution in the three-neck flask at 75 ℃ for 30min, refluxing at 130 ℃ for 6h, and carrying out vacuum suction filtration to obtain a filter cake;
washing the filter cake with absolute ethyl alcohol, vacuum drying for 2h, and grinding to obtain the modified nano ITO powder.
The modified carbon fiber powder is obtained by modifying carbon fiber powder by a surfactant, and specifically comprises the following steps:
s11, soaking carbon fiber powder in absolute ethyl alcohol, ultrasonically cleaning for 15min, cleaning with deionized water, drying for 3h in a baking oven at 120 ℃, pretreating the dried carbon fiber powder with 60wt% of concentrated nitric acid, treating for 30min in a water bath at 75 ℃, and cleaning the treated carbon fiber powder with deionized water;
s12, measuring 75% of absolute ethyl alcohol, 20% of surfactant and 15% of deionized water by mass fraction, and mixing and stirring for 30min at normal temperature to obtain surfactant mixed solution;
and S13, placing the carbon fiber powder obtained in the step S11 into a prepared surfactant mixed solution, stirring at 75 ℃ for 2 hours, taking out the carbon fiber powder after the treatment, cleaning and drying to obtain the carbon fiber powder with the modified surface, namely the modified carbon fiber powder for short.
Wherein the surfactant is one of a silane coupling agent, a titanate coupling agent and an aluminate coupling agent.
Comparative example 1:
for comparison with the present technical solution, the difference with example 1 is that the same total amount of dried pure PEEK molding powder (excluding modified nano ITO powder and modified carbon fiber powder) was weighed, and other preparation method steps were completely identical to those of example 1.
Comparative example 2:
in order to compare with the technical scheme, the difference with the embodiment 2 is that the nano ITO powder and the carbon fiber powder are not subjected to surface modification treatment, and are further mixed with PEEK molding powder to prepare a composite material, and other preparation method steps are the same as the embodiment 2.
The conductive composites prepared in examples 1-4 and comparative examples 1-2 were tested for performance.
The test method adopted in the invention is as follows:
friction and wear properties: according to GB 3960-2016, the test is preceded by a 1200-mesh metallographic sand paper. The test condition is positive load 196N, friction moment 5 N.m, rotating speed 200r/min, test time 120min, dry friction, room temperature 23+ -2 ℃.
Electrical performance is referred to GB/T1410-2006/IEC 60093:1980, test environment: the temperature is 23+/-2 ℃, the relative humidity RH is less than or equal to 75 percent, and the conductive electrode: copper plate, insulating pad: marble table.
Table 1, performance test results:
from the results, the indium-doped tin oxide and polyether-ether-ketone composite materials in the embodiments 1 to 4 have good antistatic performance and wear resistance. In comparative example 1, the antistatic performance and the abrasion resistance are affected because no nano antistatic filler and carbon fiber powder are added, and in comparative example 2, nano ITO powder and carbon fiber are not treated by a surfactant, and the interface bonding performance with a polymer substrate is poor, which may cause uneven mixing and affect the abrasion resistance. The PEEK is filled with the modified nano ITO powder and the carbon fiber, and the antistatic effect and the wear resistance are synergistically improved.
While the preferred embodiments of the present invention have been illustrated and described, the present invention is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present invention, and these are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (10)
1. The composite material of the conductive indium-doped tin oxide and the polyether-ether-ketone is characterized by comprising the following raw materials: PEEK molding powder, modified nano ITO powder and modified carbon fiber powder.
2. The conductive indium-doped tin oxide and polyether-ether-ketone composite material according to claim 1, wherein the modified nano ITO powder is obtained by modifying nano ITO powder with a surfactant.
3. The conductive indium-doped tin oxide and polyetheretherketone composite material of claim 2, wherein the modified carbon fiber powder is a powder obtained by modifying carbon fiber powder with a surfactant.
4. The conductive indium-doped tin oxide and polyetheretherketone composite material of claim 3, wherein the surfactant is one of a silane coupling agent, a titanate coupling agent and an aluminate coupling agent.
5. The composite material of conductive indium-doped tin oxide and polyether-ether-ketone as claimed in claim 1, wherein the particle size of the modified nano ITO powder is 30-80nm, and the specific surface area is 82m 2 Per gram, bulk density of 0.6g/cm 3 。
6. The conductive indium-doped tin oxide and polyether-ether-ketone composite material according to claim 1, wherein the mass fraction of the modified nano ITO powder is 3-10% of the total mass, and the mass fraction of the modified carbon fiber powder is 2-6% of the total mass.
7. The preparation method of the conductive indium-doped tin oxide and polyether-ether-ketone composite material is characterized by comprising the following steps of:
step 1, drying PEEK molding powder;
step 2: weighing the dried PEEK molding powder, the modified nano ITO powder and the modified carbon fiber powder according to a certain mass ratio, and mixing; the modified nano ITO powder is obtained by modifying nano ITO powder through a surfactant, and the modified carbon fiber powder is obtained by modifying carbon fiber powder through a surfactant;
step 3: putting the mixed materials into a hot-pressing die cavity, melting, forming under a certain pressure, cooling to a certain temperature, demoulding, and obtaining a blank after demoulding;
step 4: the blank is subjected to heat preservation at a certain temperature, naturally cooled after heat preservation, and then subjected to machining treatment to obtain the conductive indium-doped tin oxide and polyether-ether-ketone composite material.
8. The method for preparing the conductive indium-doped tin oxide and polyether-ether-ketone composite material according to claim 7, which is characterized by comprising the following steps:
step 1, drying PEEK mould pressing powder at 120 ℃ for 3 hours;
step 2: weighing the dried PEEK molding powder, the modified nano ITO powder and the modified carbon fiber powder according to a certain mass ratio, and mixing in a high-speed mixer for 30min; the modified nano ITO powder is obtained by modifying nano ITO powder through a surfactant, and the modified carbon fiber powder is obtained by modifying carbon fiber powder through a surfactant;
step 3: putting the mixed materials into a hot-pressing die cavity at 380-390 ℃, melting, molding under 15MPa, cooling to 130 ℃, demolding, and obtaining a blank after demolding;
step 4: the blank is kept at 180 ℃ for 3 hours, naturally cooled, and then subjected to machining treatment to obtain the conductive indium-doped tin oxide and polyether-ether-ketone composite material.
9. The method for preparing the conductive indium-doped tin oxide and polyether-ether-ketone composite material according to claim 7, wherein the modified nano ITO powder is a powder obtained by modifying nano ITO powder with a surfactant, and specifically comprises the following steps:
weighing 50g of nano ITO powder, vacuum drying for 3 hours, adding the powder into water, shearing the powder for 15 minutes by a high-speed shearing machine, and performing ultrasonic treatment for 1 hour to uniformly disperse the nano ITO powder in the water to obtain a nano ITO dispersion solution;
putting the nano ITO dispersion solution into a three-neck flask, adding a quantitative surface modifier into the three-neck flask, stirring the solution in the three-neck flask at 75 ℃ for 30min, refluxing at 130 ℃ for 6h, and carrying out vacuum suction filtration to obtain a filter cake;
washing the filter cake with absolute ethyl alcohol, vacuum drying for 2h, and grinding to obtain the modified nano ITO powder.
10. The method for preparing a conductive indium-doped tin oxide and polyether-ether-ketone composite material according to claim 7, wherein the modified carbon fiber powder is a powder obtained by modifying carbon fiber powder with a surfactant, and specifically comprises the following steps:
s11, soaking carbon fiber powder in absolute ethyl alcohol, ultrasonically cleaning for 15min, cleaning with deionized water, drying for 3h in a baking oven at 120 ℃, pretreating the dried carbon fiber powder with 60wt% of concentrated nitric acid, treating for 30min in a water bath at 75 ℃, and cleaning the treated carbon fiber powder with deionized water;
s12, measuring 75% of absolute ethyl alcohol, 20% of surfactant and 15% of deionized water by mass fraction, and mixing and stirring for 30min at normal temperature to obtain surfactant mixed solution;
and S13, placing the carbon fiber powder obtained in the step S11 into a prepared surfactant mixed solution, stirring at 75 ℃ for 2 hours, taking out the carbon fiber powder after the treatment, cleaning and drying to obtain the carbon fiber powder with the modified surface, namely the modified carbon fiber powder for short.
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