Anti-static polyaryletherketone composite material with low filler content and preparation method thereof

Abstract

The invention relates to the technical field of high polymer material modification, in particular to an antistatic polyaryletherketone composite material with low filler content and a preparation method thereof, the antistatic polyaryletherketone composite material comprises polyaryletherketone resin, 3%-5% of one-dimensional conductive filler and 1%-3% of ionic liquid modified two-dimensional conductive filler; the preparation method comprises the following steps: mixing a one-dimensional conductive filler with an ionic liquid modified two-dimensional conductive filler, performing ball milling, mixing with an amino silane coupling agent solution, performing ultrasonic treatment, pre-mixing the pre-treated filler obtained by drying with polyaryletherketone, and performing melt blending extrusion to obtain the low-filler-content anti-static polyaryletherketone composite material. The composite material disclosed by the invention is low in filler content and relatively good in comprehensive antistatic property and mechanical property.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high polymer material modification, and particularly relates to a low filler content anti-static polyaryletherketone composite material and a preparation method thereof. BACKGROUND

[0002] As a semi-crystalline thermoplastic engineering plastic, polyether ether ketone (PEEK) has become a core material in high-end fields such as aerospace, electronic packaging, medical implantation, etc. due to its excellent comprehensive performance, i.e. long-term use temperature up to 260℃, tensile strength over 90MPa, chemical corrosion resistance and biocompatibility. In particular, in the electronic industry, the insulation of PEEK (volume resistivity up to 10 16 Ω·cm) can ensure the safety of element insulation, but it is easy to cause static accumulation effect, leading to a series of chain problems, such as static discharge (ESD) when the material is applied in electronic components, the voltage can be up to 15kV, which can break through the semiconductor microcircuit; or in flammable and explosive application environment, static spark can trigger combustion and explosion accidents.

[0003] Currently, the industry mainly relies on conductive filler compounding method to improve the conductivity of PEEK, and by adding carbon fiber (CF), carbon black (CB) and the like to build a conductive network, the volume resistivity is reduced to 10 6 -10 9 Ω·cm (static dissipation interval), but usually the content of conductive filler needs to be more than 20wt% to form an effective percolation network, and excessive inorganic conductive filler will hinder the movement of polymer chain segments, resulting in brittle material; in addition, nano conductive filler is easy to agglomerate into micron-sized agglomerates due to its high specific surface area, which will block the conductive path; and it will also cause the problem of poor resistivity stability after the material is extruded or injection molded due to the increase of processing temperature. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a low filler content anti-static polyaryletherketone composite material and a preparation method thereof. The filler content in the composite material of the present application is low, and the anti-static performance and mechanical properties are good.

[0005] In order to achieve the above purposes, the present application realizes the following technical scheme:

[0006] A low filler content anti-static polyaryletherketone composite material, comprising the following 100% by weight of materials: polyaryletherketone resin 92%-96%, one-dimensional conductive filler 3%-5%, and two-dimensional conductive filler modified by ionic liquid 1%-3%.

[0007] Further, the polyaryletherketone resin is selected from one or more of polyether ether ketone (PEEK), polyether ketone (PEK), polyether ketone ketone (PEKK), polyether ether ketone ketone (PEEKK), and polyether ketone ether ketone ketone (PEKEKK), and the polyaryletherketone resin has a melt index of 15-100 g / 10 min at 400℃, 2.16 kg. The polyaryletherketone resin can be a pure resin or a modified resin, which is selected as needed.

[0008] Further, the one-dimensional conductive filler is selected from one or more of carbon nanotubes, carbon fibers, metal nanowires (such as silver, copper, nickel, etc. nanowires), and metal-plated glass fibers (such as glass fibers plated with aluminum or nickel on the surface), the carbon nanotubes have a diameter less than 20 nm and a length-diameter ratio greater than 100, and the carbon fibers have a diameter less than 8 microns and a length-diameter ratio greater than 100 microns; wherein the CNT has a high length-diameter ratio, is more likely to form a low percolation threshold network, and has ultra-high conductivity (10 3 -10 4 S / cm); the carbon fibers have high strength, corrosion resistance, and stable conductivity, and have a resistivity of 10 -3 -10 -1 Ω·cm; the metal-plated glass fibers have light weight and low cost, a resistivity of 10-3-10-1Ω·cm, and better dispersibility than pure metal fibers, but the plating layer is also prone to oxidation; the metal fibers have excellent conductivity, but are prone to oxidation (copper) or are high in cost (silver); therefore, the one-dimensional conductive filler is preferably carbon nanotubes and / or carbon fibers.

[0009] Further, the method for obtaining the ionic liquid-modified two-dimensional conductive filler comprises the following steps:

[0010] First, the ionic liquid is dissolved in an alcohol solvent, stirred uniformly, and then the two-dimensional conductive filler is added while stirring, and ultrasonic stirring and dispersion are performed for 2-4 h, and then vacuum drying is performed to obtain the ionic liquid-modified two-dimensional conductive filler.

[0011] Further, the ionic liquid is selected from one or more of 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid (melting point -71℃), 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid (melting point 6.5℃), 1-butyl-3-methylimidazolium trifluoromethanesulfonate ionic liquid (melting point 16℃), 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid (melting point 16℃), and trioctylmethylammonium chloride ionic liquid (melting point -20℃);

[0012] The two-dimensional conductive filler is selected from one or more of graphene and MXene (transition metal carbide sheet), and the two-dimensional conductive filler has a sheet diameter of 5-15 microns and a thickness of less than 5 nm.

[0013] The mass ratio of the alcohol solvent, the ionic liquid, and the two-dimensional conductive filler is 1:1-3:3-6.

[0014] The preparation method of the low filler content antistatic polyaryletherketone composite material includes the following steps:

[0015] S1, according to the formula, the material is weighed, the one-dimensional conductive filler is mixed with the two-dimensional conductive filler modified by the ionic liquid, then ball milling is performed, the material after ball milling is mixed with the amino silane coupling agent solution for ultrasonic treatment, and then drying is performed to obtain pretreated filler for standby use;

[0016] S2, the polyaryletherketone is premixed with the pretreated filler, then melt blending extrusion is performed, and thus the low filler content antistatic polyaryletherketone composite material is obtained.

[0017] Further, the ball milling adopts dry ball milling, the mass ratio of the grinding beads to the material is 5-10:1, the ball diameter of the grinding beads is 0.1-5mm, the large grinding beads of 3-5mm and the small grinding beads of 0.1-2mm are configured in equal mass ratio, and the ball milling time is 1-3h.

[0018] The ultrasonic treatment time is 20-60min.

[0019] Further, the mass percentage of the amino silane coupling agent solution is 0.5%-2%, the selected amino silane coupling agent is selected from one or more of N-(2-aminoethyl)-3-aminopropylmethyldiethoxysilane, N-aminoethyl-3-aminopropyltriethoxysilane, bis(methyldiethoxysilylpropyl)amine, and N-(3-triethoxysilylpropyl)-4-hydroxybutyramide, wherein the solvent is selected from alcohol and / or water; the mass percentage of the material after ball milling in the amino silane coupling agent solution is 20%-50%. This type of coupling agent is resistant to high temperature.

[0020] Further, the melt blending extrusion process is performed by using a double screw extruder, the double screw extruder includes a feeding section, a melting section, a mixing section, an exhaust section, and a homogenization section, the temperature of the feeding section is set to 300-330℃, the temperature of the melting section is set to 340-370℃, the temperature of the mixing section is set to 360-380℃, the temperature of the exhaust section is set to 360-380℃, and the temperature of the homogenization section is set to 370-390℃, the melting section, the mixing section, and the exhaust section are all provided with exhaust ports, the exhaust ports are connected to a vacuum pumping system for removing small molecule volatile components to avoid carbonization affecting the performance of the composite material, a vacuum gradient is increased, the vacuum of the melting section is-0.01MPa to-0.04MPa, the vacuum of the mixing section is-0.05MPa to-0.07MPa, and the vacuum of the exhaust section is-0.08MPa to-0.095MPa.

[0021] Beneficial technical effects: The application first modifies two-dimensional conductive fillers with ionic liquid, and then the modification is treated with one-dimensional conductive fillers and high-temperature-resistant amino coupling agent to form a static-proof composite material with PAEK matrix resin; the two-dimensional conductive fillers modified by ionic liquid enhance charge dissipation through interface polarization, and the one-dimensional conductive fillers connect the two-dimensional conductive fillers in series, so that an effective conductive path is constructed at a low filler addition amount, and the PAEK material realizes static-proof performance at a low addition amount; through low addition amount of composite fillers and process innovation, the PAEK is endowed with durable static-proof property under the premise of minimizing mechanical property loss. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. The description of the at least one exemplary embodiment is actually only illustrative in nature and by no means as any limitation on the application and its application or use. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0023] Unless otherwise specifically indicated, the numerical values set forth in these embodiments do not limit the scope of the application. Techniques, methods, which are known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It should be noted that, for example, the values expressed as "in the range of a-b", "between a-b" do not include the end values a and b; the values expressed as "a-b", "is a-b", "a-b" include the end values a and b.

[0024] The experimental methods in the following embodiments not specified in the specific conditions are generally determined according to the national standard; if there is no corresponding national standard, the general standard requirements or general methods are used.

[0025] The following embodiments of polyaryletherketone take polyether ether ketone PEEK as an example, when other polyaryletherketone types of composite materials are needed, replace PEEK with polyether ketone (PEK), polyether ketone ketone (PEKK), polyether ether ketone ketone (PEEKK) or polyether ketone ether ketone ketone (PEKEKK).

[0026] Ionic liquid is abbreviated as IL; graphene is abbreviated as Gr; 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid is abbreviated as [BMIM][BF4]; 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid is abbreviated as [BMIM][PF6]; 1-butyl-3-methylimidazolium triflate ionic liquid is abbreviated as [BMIM][OTf]; 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid is abbreviated as [EMIm][BF4].

[0027] The average radial size of graphene used below is 5-10 microns, and the average thickness is less than 5 nm; the carbon nanotubes used below are multi-walled carbon nanotubes (abbreviated as MWNT), the diameter is 6-13 nm, and the length is 2.5-20 microns.

[0028] Example 1

[0029] The case is the preparation of ionic liquid modified graphene:

[0030] The ionic liquid is weighed and dissolved in anhydrous ethanol (solvent), stirred for 10 minutes until completely dissolved, and then slowly added with graphene (average radial size of 5-10 microns, average thickness of less than 5 nm) while stirring, and then ultrasonic stirring is continued for 3 hours (temperature control 25±5℃), and then vacuum drying at 60℃ to obtain ionic liquid modified graphene (marked as Gr / IL).

[0031] The specific preparation parameters are shown in Table 1.

[0032] Table 1 Preparation parameters of ionic liquid modified graphene

[0033]

[0034] Example 2

[0035] A low filler content antistatic polyaryletherketone composite material, including the following 100% by weight of the material: polyether ether ketone (Victrex 450G, melt index 40g / 10min at 400℃, 2.16kg) 95%, multi-walled carbon nanotubes (MWNT) 4%, Gr / IL-I 1%;

[0036] The preparation method of the above composite material, including the following steps:

[0037] S1, according to the formula, the above materials are weighed, and the MWNT and Gr / IL-I are mixed and ball milled, dry ball milling is adopted, the mass ratio of grinding beads to material is 8:1, 5mm large grinding beads and 2mm small grinding beads are used in equal mass ratio, the ball milling time is 2h, and the rotating speed is 400rpm;

[0038] The ball-milled material is mixed with anhydrous ethanol solution (1wt%) of N-aminoethyl-3-aminopropyl triethoxysilane, and is subjected to ultrasonic treatment for 30 min (the mass percentage of the ball-milled material in the coupling agent solution is 50%), and is dried at 80℃ to obtain a pretreated filler, which is ready for use;

[0039] S2, the polyether ether ketone is premixed with the pretreated filler, and then subjected to melt blending extrusion by using a double-screw extruder, wherein the double-screw extruder comprises a feeding section, a melting section, a mixing section, a degassing section and a homogenizing section, the temperature of the feeding section is set to 320℃, the temperature of the melting section is set to 360℃, the temperature of the mixing section is set to 375℃, the temperature of the degassing section is set to 370℃, and the temperature of the homogenizing section is set to 380℃, the melting section, the mixing section and the degassing section are all provided with exhaust ports, the exhaust ports are connected to a vacuum system for removing small-molecule volatile components to avoid carbonization affecting the performance of the composite material, and the vacuum gradient is increased, wherein the vacuum of the melting section is -0.04 MPa, the vacuum of the mixing section is -0.06 MPa, and the vacuum of the degassing section is -0.09 MPa, and the low filler content anti-static polyaryletherketone composite material is obtained after extrusion.

[0040] Example 3

[0041] The preparation process of the composite material of the case is the same as that of Example 1, except that the ion liquid modified two-dimensional conductive filler is replaced by Gr / IL-Ⅱ.

[0042] Example 4

[0043] The preparation process of the composite material of the case is the same as that of Example 1, except that the ion liquid modified two-dimensional conductive filler is replaced by Gr / IL-Ⅲ.

[0044] Example 5

[0045] The preparation process of the composite material of the case is the same as that of Example 1, except that the ion liquid modified two-dimensional conductive filler is replaced by Gr / IL-Ⅳ.

[0046] Example 6

[0047] A low filler content anti-static polyaryletherketone composite material, comprising the following 100% by weight of materials: polyether ether ketone (Victrex 450G, melt index 40 g / 10 min at 400℃, 2.16 kg) 95%, multi-walled carbon nanotubes (MWNT) 3%, Gr / IL-Ⅰ 2%;

[0048] The preparation method of the above-mentioned composite material, comprising the following steps:

[0049] S1, the above materials are weighed according to the formula, and the MWNT is mixed with the Gr / IL-I and then ball milled, dry ball milling is adopted, the mass ratio of the grinding beads to the material is 8:1, 5mm large grinding beads and 2mm small grinding beads are configured in equal mass ratio, the ball milling time is 2h, and the rotating speed is 400rpm;

[0050] The ball milled material is mixed with anhydrous ethanol solution (1.5wt%) of N-(2-aminoethyl)-3-aminopropylmethyldiethoxysilane, and then ultrasonic treatment is performed for 30min (the mass percentage of the ball milled material in the coupling agent solution is 30%), and then drying is performed at 80℃ to obtain a pretreated filler, which is ready for use;

[0051] S2, the polyether ether ketone is premixed with the above pretreated filler, and then melt blending extrusion is performed by using a double screw extruder, the double screw extruder includes a feeding section, a melting section, a mixing section, a degassing section and a homogenizing section, the temperature of the feeding section is set to 325℃, the temperature of the melting section is set to 365℃, the temperature of the mixing section is set to 375℃, the temperature of the degassing section is set to 375℃, and the temperature of the homogenizing section is set to 380℃, the melting section, the mixing section and the degassing section are all provided with exhaust ports connected to a vacuum pumping system for removing small molecular volatile components to avoid carbonization affecting the performance of the composite material, a vacuum gradient is increased, the vacuum of the melting section is-0.03MPa, the vacuum of the mixing section is-0.05MPa, and the vacuum of the degassing section is-0.08MPa, and then a low filler content anti-static polyaryletherketone composite material is obtained.

[0052] Example 7

[0053] A low filler content anti-static polyaryletherketone composite material, including the following 100% by weight of materials: polyether ether ketone (Victrex 450G, melt index 40g / 10min at 400℃, 2.16kg) 94%, multi-walled carbon nanotube (MWNT) 5%, Gr / IL-I 1%;

[0054] A preparation method of the above composite material, including the following steps:

[0055] S1, the above materials are weighed according to the formula, and the MWNT is mixed with the Gr / IL-I and then ball milled, dry ball milling is adopted, the mass ratio of the grinding beads to the material is 8:1, 5mm large grinding beads and 2mm small grinding beads are configured in equal mass ratio, the ball milling time is 2h, and the rotating speed is 400rpm;

[0056] The ball-milled material is mixed with anhydrous ethanol solution of N-aminoethyl-3-aminopropyl triethoxysilane (2wt%) and ultrasonic treatment is performed for 30 min (the mass percentage of the ball-milled material in the coupling agent solution is 40%), and then drying is performed at 80°C to obtain a pretreated filler, which is ready for use;

[0057] S2, the polyether ether ketone is premixed with the pretreated filler, and then melt blending extrusion is performed using a twin-screw extruder, the twin-screw extruder includes a feeding section, a melting section, a mixing section, a degassing section and a homogenizing section, the temperature of the feeding section is set to 330°C, the temperature of the melting section is set to 370°C, the temperature of the mixing section is set to 375°C, the temperature of the degassing section is set to 375°C, and the temperature of the homogenizing section is set to 390°C, the melting section, the mixing section and the degassing section are all provided with exhaust ports, the exhaust ports are connected to a vacuum system for removing small molecular volatile components to avoid carbonization affecting the performance of the composite material, a vacuum gradient is increased, the vacuum of the melting section is -0.03 MPa, the vacuum of the mixing section is -0.07 MPa, and the vacuum of the degassing section is -0.095 MPa, and then a low filler content anti-static polyaryletherketone composite material is obtained.

[0058] Comparative Example 1

[0059] The composite material of the case includes the following weight percentage materials: polyether ether ketone (Victrex 450G) 95%, multi-walled carbon nanotubes 4%, graphene 0.7%, and [BMIM][BF4] 0.3%, the graphene and multi-walled carbon nanotubes are ball-milled according to the S1 step of Example 2, ultrasonic treatment is performed after adding the coupling agent solution, drying is performed, ultrasonic treatment is performed after mixing with the ionic liquid, and then the melt blending extrusion of the S2 step is performed for preparation (other conditions not shown are the same as those of Example 2).

[0060] Comparative Example 2

[0061] The composite material of the case includes the following weight percentage materials: polyether ether ketone (Victrex 450G) 95%, multi-walled carbon nanotubes 5%, the multi-walled carbon nanotubes are ball-milled according to the S1 step of Example 2, ultrasonic treatment is performed after adding the coupling agent solution, drying is performed, and then the melt blending extrusion of the S2 step is performed for preparation (other conditions not shown are the same as those of Example 2).

[0062] Comparative Example 3

[0063] The composite material of the case includes the following weight percentage materials: polyether ether ketone (Victrex 450G) 95%, Gr / IL-I 5%, the Gr / IL-I is added to the coupling agent solution according to the S1 step of Example 2, ultrasonic treatment is performed after drying, and then the melt blending extrusion of the S2 step is performed for preparation (other conditions not shown are the same as those of Example 2).

[0064] Comparative Example 4

[0065] The composite material of the present case includes the following weight percentage materials: polyether ether ketone (Victrex 450G) 95%, multi-walled carbon nanotubes 4%, [BMIM][BF4] 1%; the multi-walled carbon nanotubes are ball milled according to the S1 step of Example 2, after adding the coupling agent solution, ultrasonic, drying, and then mixed with the ionic liquid and ultrasonic treated, and then the S2 step of melt blending extrusion is prepared (other conditions not shown are the same as Example 2).

[0066] Test Example

[0067] The materials of the above cases are made into sample strips, and performance tests are carried out, and the results are shown in Table 2.

[0068] Table 2 Performance of Each Case

[0069]

[0070]

[0071] As can be seen from Table 2, the present application first uses ionic liquid to modify two-dimensional conductive filler, and then the modification is treated with one-dimensional conductive filler and high-temperature-resistant amino coupling agent, and then blended with PEEK matrix resin to form an antistatic composite material. At a lower addition amount, an effective conductive path is formed, the volume resistivity is 10 7 -10 8 Ω·cm, realizing the antistatic performance of PEEK material at a low addition amount; and the volume resistivity degradation effect is small under high temperature and high humidity environment for 1000 hours, and has good long-lasting antistatic property.

[0072] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art, according to the technical solution and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A low-filler-content antistatic polyaryletherketone composite material, characterized in that, The material comprises the following 100% by weight percentages: 92%-96% polyaryletherketone resin, 3%-5% one-dimensional conductive filler, and 1%-3% ionic liquid-modified two-dimensional conductive filler.

2. The antistatic polyaryletherketone composite material with low filler content according to claim 1, characterized in that, The polyaryletherketone resin is selected from one or more of polyetheretherketone, polyetherketone, polyetherketoneketone, polyetheretherketoneketone, and polyetherketoneetherketoneketone. The melt index of the polyaryletherketone resin at 400°C and 2.16 kg is 15-100 g / 10 min.

3. The antistatic polyaryletherketone composite material with low filler content according to claim 1, characterized in that, The one-dimensional conductive filler is selected from one or more of carbon nanotubes, carbon fibers, metal nanowires, and metal-coated glass fibers. The carbon nanotubes have a diameter of less than 20 nm and an aspect ratio of greater than 100. The carbon fibers have a diameter of less than 8 micrometers and an aspect ratio of greater than 100 micrometers.

4. The antistatic polyaryletherketone composite material with low filler content according to claim 1, characterized in that, The method for obtaining the ionic liquid-modified two-dimensional conductive filler includes the following steps: First, the ionic liquid is dissolved in an alcohol solvent and stirred evenly. Then, the two-dimensional conductive filler is added while stirring. After ultrasonic stirring and dispersion for 2-4 hours, the filler is vacuum dried to obtain the ionic liquid-modified two-dimensional conductive filler.

5. The antistatic polyaryletherketone composite material with low filler content according to claim 4, characterized in that, The ionic liquid is selected from one or more of the following: 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid, 1-butyl-3-methylimidazolium trifluoromethanesulfonate ionic liquid, 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid, and trioctylmethylammonium chloride ionic liquid. The two-dimensional conductive filler is selected from one or more of graphene and MXene, and the sheet diameter of the two-dimensional conductive filler is 5-15 micrometers and the thickness is less than 5nm. The mass ratio of the alcohol solvent, the ionic liquid, and the two-dimensional conductive filler is 1:1-3:3-6.

6. The antistatic polyaryletherketone composite material with low filler content according to any one of claims 1-5, characterized in that, The preparation method of the above-mentioned low-filler-content antistatic polyaryletherketone composite material includes the following steps: S1. Weigh the materials according to the formula, mix the one-dimensional conductive filler with the two-dimensional conductive filler modified by ionic liquid and then ball mill it. Mix the ball-milled material with the aminosilane coupling agent solution and ultrasonically treat it. Dry it to obtain the pretreated filler for later use. S2. After premixing polyaryletherketone with the pretreated filler, melt blending and extrusion are performed to obtain an antistatic polyaryletherketone composite material with low filler content.

7. The antistatic polyaryletherketone composite material with low filler content according to claim 6, characterized in that, The ball milling adopts dry ball milling, with a mass ratio of grinding beads to material of 5-10:1, a ball diameter of 0.1-5mm, and a mass ratio of 3-5mm large grinding beads to 0.1-2mm small grinding beads. The ball milling time is 1-3 hours. The ultrasonic treatment time is 20-60 minutes.

8. The antistatic polyaryletherketone composite material with low filler content according to claim 6, characterized in that, The aminosilane coupling agent solution has a mass percentage of 0.5%-2%, and the selected aminosilane coupling agent is one or more selected from N-(2-aminoethyl)-3-aminopropylmethyldiethoxysilane, N-aminoethyl-3-aminopropyltriethoxysilane, bis(methyldiethoxysilylpropyl)amine, and N-(3-triethoxysilylpropyl)-4-hydroxybutyramide, wherein the solvent is an alcohol and / or water; the mass percentage of the ball-milled material in the aminosilane coupling agent solution is 20%-50%.

9. The antistatic polyaryletherketone composite material with low filler content according to claim 6, characterized in that, The melt blending extrusion process is carried out using a twin-screw extruder, which includes a feeding section, a melting section, a mixing section, a venting section, and a homogenizing section. The temperature of the feeding section is set to 300-330℃, the temperature of the melting section is set to 340-370℃, the temperature of the mixing section is set to 360-380℃, the temperature of the venting section is set to 360-380℃, and the temperature of the homogenizing section is set to 370-390℃. The melting section, the mixing section, and the venting section are all equipped with vent ports. The vent ports are connected to a vacuum system with a vacuum gradient: the vacuum in the melting section is -0.01MPa to -0.04MPa, the vacuum in the mixing section is -0.05MPa to -0.07MPa, and the vacuum in the venting section is -0.08MPa to -0.095MPa.

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