Polyphenylene sulfide composite material as well as preparation method and application thereof

Abstract

The invention relates to the technical field of preparation and application of polyphenylene sulfide composite materials, in particular to a polyphenylene sulfide composite material as well as a preparation method and application thereof.The polyphenylene sulfide composite material is prepared from the following components in parts by weight: 90-99 parts of polyphenylene thioether-40% glass fibers, 1-10 parts of polytetrafluoroethylene and 1 part of a coupling agent, 0.5 part of a lubricant; a preparation method of a polyphenylene sulfide composite material comprises the following steps: (1) putting 90-99 parts by weight of polyphenylene sulfide-40% glass fiber, 1-10 parts by weight of polytetrafluoroethylene and 1 part by weight of a coupling agent into a mixer, and uniformly mixing to obtain a mixture A; and (2) placing the mixture A in an extruder, adding 0.5 part of a lubricant, and extruding the rod-like material by the extruder. The polyphenylene sulfide composite material has the tensile strength and wear resistance of the glass fibers and the self-lubricating property of the polytetrafluoroethylene at the same time, and the self-lubricating property of the material is improved.

Description

Technical Field

[0001] This invention relates to the field of preparation and application technology of polyphenylene sulfide composite materials, and in particular to a polyphenylene sulfide composite material, its preparation method and its application. Background Technology

[0002] Polyphenylene sulfide (PPS), chemically known as polyphenylene sulfide, is a large linear polymer composed of benzene rings linked by sulfur atoms at the para-position. Its molecular chain possesses a highly rigid and regular structure, classifying it as a semi-crystalline thermoplastic engineering plastic. PPS exhibits excellent overall performance, demonstrating superior thermal stability for long-term use in high-temperature environments. It possesses inherent flame-retardant properties, achieving UL94 V-0 rating without the addition of flame retardants. Furthermore, it exhibits high strength, excellent fatigue and abrasion resistance, strong corrosion resistance to acids and alkalis, high dimensional stability, good electrical insulation properties, and is easily processed using injection molding and other techniques. Therefore, PPS is widely used in high-tech fields such as electronics, automotive, precision machinery, chemical equipment, and aerospace.

[0003] In recent years, with the promotion and popularization of hydrogen fuel cell vehicles, improving the efficiency of fuel cell systems has become a key aspect of technological development. As one of the core components of a fuel cell, the air compressor has a significant impact on system performance. In particular, high-power hydrogen fuel cell air compressors employing turbocharging technology urgently need lightweight design and improved corrosion resistance for key components to meet national energy efficiency policies requiring reduced parasitic power. Against this backdrop, the use of polyphenylene sulfide (PPS) as the matrix material for air compressor nozzle ring assemblies has begun to be considered, aiming to balance lightweight design with corrosion resistance under humid and acidic conditions.

[0004] However, unmodified polyphenylene sulfide (PPS) has inherent drawbacks such as high brittleness, insufficient rigidity, and low toughness, which limit its application under high mechanical loads. To improve its mechanical properties, glass fiber (GF) is often used for reinforcement modification in industry. Although the introduction of glass fiber significantly improves the rigidity and strength of PPS, it increases the surface roughness of the product, affecting the assembly accuracy and operational stability of components used as moving parts. Summary of the Invention

[0005] To address the shortcomings or problems existing in the prior art, this disclosure provides a polyphenylene sulfide composite material, its preparation method, and its application. The polyphenylene sulfide composite material has good impact resistance, wear resistance, and self-lubricating properties.

[0006] The technical solution adopted by this disclosure to solve the above-mentioned technical problem is: a polyphenylene sulfide composite material, which is prepared from the following components in parts by weight: 90-99 parts of polyphenylene sulfide-40% glass fiber, 1-10 parts of polytetrafluoroethylene, 1 part of coupling agent, and 0.5 parts of lubricant.

[0007] Preferably, the polyphenylene sulfide-40% glass fiber comprises 94-97 parts; and the polytetrafluoroethylene comprises 4-6 parts.

[0008] Preferably, the coupling agent is a silane coupling agent; the lubricant is pentaerythritol stearate or ethylene bis-stearamide.

[0009] Preferably, the silane coupling agent is an aminosilane, with the brand name KH550 or KH792.

[0010] Another objective of this disclosure is to provide a method for preparing a polyphenylene sulfide composite material, comprising the following steps: (1) According to the weight parts, put 90-99 parts of polyphenylene sulfide-40% glass fiber, 1-10 parts of polytetrafluoroethylene and 1 part of coupling agent into a mixer and mix them evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of lubricant. The extruder extrudes rod-shaped material.

[0011] In step (1), the amount of polytetrafluoroethylene is 4-6 parts, and the amount of polyphenylene sulfide-40% glass fiber is 94-97 parts; the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 3-5 minutes. Preferably, the mixer runs for 4 minutes.

[0012] In step (2), the extruder includes ten temperature zones, from the outside in: temperature zone 1, temperature zone 2, temperature zone 3, temperature zone 4, temperature zone 5, temperature zone 6, temperature zone 7, temperature zone 8, temperature zone 9, and temperature zone 10. The temperature of temperature zone 1 is 40-60℃, temperature zone 2 is 210-230℃, temperature zone 3 is 270-290℃, temperature zone 4 is 290-310℃, temperature zone 5 is 300-320℃, temperature zone 6 is 300-320℃, temperature zone 7 is 310-330℃, temperature zone 8 is 310-330℃, temperature zone 9 is 300-320℃, and temperature zone 10 is 290-310℃. Using a gradient heating method is more conducive to the melting and blending of materials; and gradient heating makes it easier for operators to control each temperature zone, reducing the loss of materials due to thermal shock.

[0013] Preferably, the temperature of the first temperature zone is 50℃, the temperature of the second temperature zone is 220℃, the temperature of the third temperature zone is 280℃, the temperature of the fourth temperature zone is 300℃, the temperature of the fifth temperature zone is 310℃, the temperature of the sixth temperature zone is 310℃, the temperature of the seventh temperature zone is 320℃, the temperature of the eighth temperature zone is 320℃, the temperature of the ninth temperature zone is 310℃, and the temperature of the tenth temperature zone is 300℃.

[0014] In step (2), the diameter of the rod-shaped material is 12 cm; the lubricant is pentaerythritol stearate or ethylene bis-stearamide.

[0015] Preferably, in step (2), the extruder speed is 280~380 r / min and the die temperature is 310~340℃.

[0016] Another objective of this application is to provide the application of the aforementioned polyphenylene sulfide composite material in a hydrogen fuel cell nozzle ring assembly.

[0017] Compared with the prior art, the beneficial effects of the present invention are: Polyphenylene sulfide composite materials combine the tensile strength and wear resistance of glass fiber with the self-lubricating properties of polytetrafluoroethylene, thus improving the self-lubricating performance of the material. The addition of polytetrafluoroethylene further improves the material's flowability / processability, impact resistance, rigidity, and wear resistance, enabling its application in hydrogen fuel cell nozzle ring assemblies and meeting the processing, molding, and operating requirements of nozzle ring assemblies. The preparation method of this invention can be achieved using existing extruders, which enables the polyphenylene sulfide composite material to be fully dispersed. The preparation process is simple, easy to scale up for industrial production, and has broad application prospects. Attached Figure Description

[0018] Figure 1 This is a comparison diagram of the friction coefficients of the polyphenylene sulfide composite material of Example 5 of this application and the comparative example; Figure 2 This is a fracture morphology diagram of the sample in the comparative example of this application; Figure 3 This is a fracture morphology diagram of the sample in Example 5 of this application. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0020] Example 1 A polyphenylene sulfide composite material is prepared from the following components in parts by weight: 99 parts of polyphenylene sulfide-40% glass fiber, 1 part of polytetrafluoroethylene, 1 part of KH550, and 0.5 parts of ethylene bis-stearamide.

[0021] A method for preparing the above-mentioned polyphenylene sulfide composite material includes the following steps: (1) According to the weight parts, put 1 part of polytetrafluoroethylene, 99 parts of polyphenylene sulfide-40% glass fiber and 1 part of KH550 into a mixer and mix them evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of ethylene bis-stearamide. The extruder extrudes rod-shaped material with a diameter of 12 cm.

[0022] In step (1), the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 4 minutes. In step (2), the extruder speed is 380 r / min and the die temperature is 310℃. The temperature of the first temperature zone of the extruder is 50℃, the temperature of the second temperature zone is 220℃, the temperature of the third temperature zone is 280℃, the temperature of the fourth temperature zone is 300℃, the temperature of the fifth temperature zone is 310℃, the temperature of the sixth temperature zone is 310℃, the temperature of the seventh temperature zone is 320℃, the temperature of the eighth temperature zone is 320℃, the temperature of the ninth temperature zone is 310℃, and the temperature of the tenth temperature zone is 300℃.

[0023] Example 2 A polyphenylene sulfide composite material is prepared from the following components in parts by weight: 98 parts of polyphenylene sulfide-40% glass fiber, 2 parts of polytetrafluoroethylene, 1 part of KH792, and 0.5 parts of ethylene bis-stearamide.

[0024] A method for preparing the above-mentioned polyphenylene sulfide composite material includes the following steps: (1) According to the weight proportions, 2 parts of polytetrafluoroethylene, 98 parts of polyphenylene sulfide-40% glass fiber and 1 part of KH792 are put into a mixer and mixed evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of ethylene bis-stearamide. The extruder extrudes rod-shaped material with a diameter of 12 cm.

[0025] In step (1), the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 5 minutes. In step (2), the extruder speed is 350 r / min and the die temperature is 320℃. The temperature of the first temperature zone of the extruder is 40℃, the temperature of the second temperature zone is 210℃, the temperature of the third temperature zone is 270℃, the temperature of the fourth temperature zone is 290℃, the temperature of the fifth temperature zone is 300℃, the temperature of the sixth temperature zone is 300℃, the temperature of the seventh temperature zone is 310℃, the temperature of the eighth temperature zone is 310℃, the temperature of the ninth temperature zone is 300℃, and the temperature of the tenth temperature zone is 290℃.

[0026] Example 3 A polyphenylene sulfide composite material is prepared from the following components in parts by weight: 97 parts of polyphenylene sulfide-40% glass fiber, 3 parts of polytetrafluoroethylene, 1 part of KH550, and 0.5 parts of ethylene bis-stearamide.

[0027] A method for preparing the above-mentioned polyphenylene sulfide composite material includes the following steps: (1) According to the weight proportions, 3 parts of polytetrafluoroethylene, 97 parts of polyphenylene sulfide-40% glass fiber and 1 part of KH550 are put into a mixer and mixed evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of ethylene bis-stearamide. The extruder extrudes rod-shaped material with a diameter of 12 cm.

[0028] In step (1), the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 4 minutes. In step (2), the extruder speed is 330 r / min and the die temperature is 330℃. The temperature of the first temperature zone of the extruder is 60℃, the temperature of the second temperature zone is 230℃, the temperature of the third temperature zone is 270℃, the temperature of the fourth temperature zone is 290℃, the temperature of the fifth temperature zone is 320℃, the temperature of the sixth temperature zone is 320℃, the temperature of the seventh temperature zone is 320℃, the temperature of the eighth temperature zone is 330℃, the temperature of the ninth temperature zone is 320℃, and the temperature of the tenth temperature zone is 310℃.

[0029] Example 4 A polyphenylene sulfide composite material is prepared from the following components in parts by weight: 96 parts of polyphenylene sulfide-40% glass fiber, 4 parts of polytetrafluoroethylene, 1 part of KH550, and 0.5 parts of pentaerythritol stearate.

[0030] A method for preparing the above-mentioned polyphenylene sulfide composite material includes the following steps: (1) According to the weight parts, 4 parts of polytetrafluoroethylene, 96 parts of polyphenylene sulfide-40% glass fiber and 1 part of KH550 are put into a mixer and mixed evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of pentaerythritol stearate. The extruder extrudes rod-shaped material with a diameter of 12 cm.

[0031] In step (1), the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 3 minutes. In step (2), the extruder speed is 300 r / min and the die temperature is 340℃. The temperature of the first temperature zone of the extruder is 50℃, the temperature of the second temperature zone is 220℃, the temperature of the third temperature zone is 280℃, the temperature of the fourth temperature zone is 310℃, the temperature of the fifth temperature zone is 320℃, the temperature of the sixth temperature zone is 320℃, the temperature of the seventh temperature zone is 330℃, the temperature of the eighth temperature zone is 330℃, the temperature of the ninth temperature zone is 320℃, and the temperature of the tenth temperature zone is 310℃.

[0032] Example 5 A polyphenylene sulfide composite material is prepared from the following components in parts by weight: 95 parts of polyphenylene sulfide-40% glass fiber, 5 parts of polytetrafluoroethylene, 1 part of KH792, and 0.5 parts of pentaerythritol stearate.

[0033] A method for preparing the above-mentioned polyphenylene sulfide composite material includes the following steps: (1) According to the weight parts, 5 parts of polytetrafluoroethylene, 95 parts of polyphenylene sulfide-40% glass fiber and 1 part of KH792 are put into a mixer and mixed evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of pentaerythritol stearate. The extruder extrudes rod-shaped material with a diameter of 12 cm.

[0034] In step (1), the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 4 minutes. In step (2), the extruder speed is 280 r / min and the die temperature is 320℃. The temperature of the first temperature zone of the extruder is 60℃, the temperature of the second temperature zone is 210℃, the temperature of the third temperature zone is 270℃, the temperature of the fourth temperature zone is 300℃, the temperature of the fifth temperature zone is 310℃, the temperature of the sixth temperature zone is 320℃, the temperature of the seventh temperature zone is 330℃, the temperature of the eighth temperature zone is 320℃, the temperature of the ninth temperature zone is 300℃, and the temperature of the tenth temperature zone is 290℃.

[0035] Example 6 A polyphenylene sulfide composite material is prepared from the following components in parts by weight: 94 parts of polyphenylene sulfide-40% glass fiber, 6 parts of polytetrafluoroethylene, 1 part of KH550, and 0.5 parts of ethylene bis-stearamide.

[0036] A method for preparing the above-mentioned polyphenylene sulfide composite material includes the following steps: (1) According to the weight parts, 6 parts of polytetrafluoroethylene, 94 parts of polyphenylene sulfide-40% glass fiber and 1 part of KH550 are put into a mixer and mixed evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of ethylene bis-stearamide. The extruder extrudes rod-shaped material with a diameter of 12 cm.

[0037] In step (1), the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 4 minutes. In step (2), the extruder speed is 280 r / min and the die temperature is 320℃. The temperature of the first temperature zone of the extruder is 50℃, the temperature of the second temperature zone is 220℃, the temperature of the third temperature zone is 280℃, the temperature of the fourth temperature zone is 300℃, the temperature of the fifth temperature zone is 310℃, the temperature of the sixth temperature zone is 310℃, the temperature of the seventh temperature zone is 320℃, the temperature of the eighth temperature zone is 320℃, the temperature of the ninth temperature zone is 310℃, and the temperature of the tenth temperature zone is 300℃.

[0038] Comparative Example A polyphenylene sulfide composite material is prepared from the following components in parts by weight: 100 parts of polyphenylene sulfide-40% glass fiber, 1 part of KH550, and 0.5 parts of ethylene bis-stearamide.

[0039] A method for preparing the above-mentioned polyphenylene sulfide composite material includes the following steps: (1) According to the weight ratio, 100 parts of polyphenylene sulfide-40% glass fiber and 1 part of KH550 are put into a mixer and mixed evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of ethylene bis-stearamide. The extruder extrudes rod-shaped material with a diameter of 12 cm.

[0040] In step (1), the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 4 minutes. In step (2), the extruder speed is 280 r / min and the die temperature is 320℃. The temperature of the first temperature zone of the extruder is 50℃, the temperature of the second temperature zone is 220℃, the temperature of the third temperature zone is 280℃, the temperature of the fourth temperature zone is 300℃, the temperature of the fifth temperature zone is 310℃, the temperature of the sixth temperature zone is 310℃, the temperature of the seventh temperature zone is 320℃, the temperature of the eighth temperature zone is 320℃, the temperature of the ninth temperature zone is 310℃, and the temperature of the tenth temperature zone is 300℃.

[0041] Tensile strength, coefficient of friction, and wear resistance comparison tests were conducted on the polyphenylene sulfide modified materials of the examples and comparative examples. (Test results are shown in Table 1) Tensile strength test: In accordance with ISO 527-2-2019 "Plastics - Tensile properties test method", the polyphenylene sulfide modified material was prepared into a strip with a length of 170 mm, a width of 10 ± 0.2 mm, and a thickness of 4 ± 0.2 mm. One end of the strip was fixed to a fixed fixture, and the other end was fixed to a force sensor. The force sensor moved the strip at a speed of 5 mm / min.

[0042] Friction coefficient test: The wear performance of polyphenylene sulfide modified material was tested using a friction and wear testing machine. A load of 50 N was applied, and the test bench was set at 200 r·min. -1 The rotation speed is clockwise, and the experiment lasts for 5 minutes.

[0043] Wear resistance comparison test: Polyphenylene sulfide modified material was prepared into circular pieces with a diameter of 20 mm and a thickness of 3 mm. The circular pieces were fixed on a fixture, which was then fixed on a test bench. Steel balls were used as the friction pair, and a load of 50 N was applied. The test bench was set at 200 r·min. -1 The disc rotates clockwise for 5 minutes. The mass of the disc before and after the test is measured, and the wear rate is calculated.

[0044] Table 1 shows the test results for the examples and comparative examples.

[0045] As shown in Table 1, by increasing the content of polytetrafluoroethylene, the wear resistance of polyphenylene sulfide modified materials can be significantly improved, thereby preparing polyphenylene sulfide modified materials with excellent wear resistance.

[0046] As shown in Table 1 and Figure 1 As shown, the performance of the polyphenylene sulfide modified materials of Examples 1-6 with added polytetrafluoroethylene is as follows: the coefficient of friction gradually decreases compared with the control example 1 without any auxiliary components, and the wear rate also decreases accordingly. The results show that the wear resistance of the polyphenylene sulfide modified materials is significantly improved.

[0047] Furthermore, with the continuous increase of polytetrafluoroethylene (PTFE) content, the tensile strength of the polyphenylene sulfide (PPS) modified material decreased slightly, especially when the PTFE content was less than 5 parts, the tensile strength of the PPS modified material was basically the same as that of the control sample (Comparative Example 1) without PTFE. When the PTFE content exceeded 5 parts, the tensile strength of the PPS modified material decreased significantly, mainly because of the poor compatibility between PTFE and PPS, resulting in defects in the sample. However, when the PTFE content was in the range of 1-10 parts, the PPS modified material still exhibited good tensile strength.

[0048] Comparative analysis of Examples 1-6 shows that with the increase of polytetrafluoroethylene (PTFE) content, the elongation after fracture of the polyphenylene sulfide (PPS) modified material initially increases and then decreases, reaching an extreme value of 2.82% at an addition of 5 parts. This is because PTFE has excellent elongation. However, as the PTFE content further increases, the poor compatibility between PTFE and PPS leads to increased defects in the sample, resulting in a decrease in elongation. Nevertheless, when the PTFE addition is in the range of 1-10 parts, the PPS modified material still exhibits good elongation after fracture.

[0049] Figure 1 To compare the friction coefficients of the two samples from Example 5 and Example 6 under a pressure of 50 N, the figure shows that, compared to the sample without added PTFE, the friction coefficient of the sample with 5 parts of PTFE decreased from 0.128 to 0.12, a decrease of 6.7%. The experimental results indicate that the wear resistance of the sample with 5 parts of PTFE is superior to that of the sample without PTFE, because the addition of PTFE improves the wear resistance of the polyphenylene sulfide composite material.

[0050] Furthermore, the samples before and after wear were weighed. The comparative sample had a mass of 2.1360 before wear and 2.1329 after wear; the sample of Example 5 had a mass of 2.0734 before wear and 2.0705 after wear. Comparing the mass loss, the wear rate of the comparative sample was 0.145%, while the wear rate of the sample of Example 5 was 0.140%, indicating that the latter had improved wear resistance.

[0051] Scanning electron microscopy (SEM) was used to analyze the fracture morphology of the two samples from Example 5 and the comparative example after they were broken. The test results are as follows: Figure 2 , Figure 3 As shown. By Figure 2 and Figure 3It can be seen that both samples exhibited glass fiber pull-out upon fracture, which is due to the glass fiber's own strength being greater than its bond strength with polyphenylene sulfide. Comparative analysis of the figures shows that the comparative sample has a relatively smooth fracture surface with fewer dimples, while the sample in Example 4 has larger and more clearly visible dimples. This is because the addition of polytetrafluoroethylene enhances the toughness of the polyphenylene sulfide composite material, a result consistent with the elongation results obtained from performance testing.

[0052] Compared with the comparative example, Example 5 shows that the polyphenylene sulfide modified material with 5 parts of polytetrafluoroethylene (PTFE) exhibits high elongation after fracture, high tensile strength, low coefficient of friction, and low wear rate, demonstrating excellent overall performance. Therefore, it is evident that the PTFE selected in this invention significantly improves the elongation of the PTFE modified material, while also synergistically promoting its mechanical properties and wear resistance.

[0053] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A polyphenylene sulfide composite material, characterized in that, It is prepared from the following components in parts by weight: 90-99 parts of polyphenylene sulfide-40% glass fiber, 1-10 parts of polytetrafluoroethylene, 1 part of coupling agent, and 0.5 parts of lubricant.

2. The polyphenylene sulfide composite material according to claim 1, characterized in that, The polyphenylene sulfide-40% glass fiber comprises 94-97 parts; the polytetrafluoroethylene comprises 4-6 parts.

3. The polyphenylene sulfide composite material according to claim 1, characterized in that, The coupling agent is a silane coupling agent; the lubricant is pentaerythritol stearate or ethylene bis-stearamide.

4. A method for preparing the polyphenylene sulfide composite material according to any one of claims 1-3, characterized in that, Includes the following steps: (1) According to the weight parts, put 90-99 parts of polyphenylene sulfide-40% glass fiber, 1-10 parts of polytetrafluoroethylene and 1 part of coupling agent into a mixer and mix them evenly to obtain mixture A; (2) Place mixture A in an extruder and add 0.5 parts of lubricant. The extruder extrudes rod-shaped material.

5. The method for preparing the polyphenylene sulfide composite material according to claim 4, characterized in that, In step (1), the speed of the large paddle of the mixer is 800 r / min, the speed of the small paddle is 800 r / min, and the mixer runs for 3-5 minutes.

6. The method for preparing the polyphenylene sulfide composite material according to claim 4, characterized in that, In step (2), the extruder includes ten temperature zones, from the outside to the inside: the first temperature zone, the second temperature zone, the third temperature zone, the fourth temperature zone, the fifth temperature zone, the sixth temperature zone, the seventh temperature zone, the eighth temperature zone, the ninth temperature zone, and the tenth temperature zone; the temperature of the first temperature zone is 40-60℃, the temperature of the second temperature zone is 210-230℃, the temperature of the third temperature zone is 270-290℃, the temperature of the fourth temperature zone is 290-310℃, the temperature of the fifth temperature zone is 300-320℃, the temperature of the sixth temperature zone is 300-320℃, the temperature of the seventh temperature zone is 310-330℃, the temperature of the eighth temperature zone is 310-330℃, the temperature of the ninth temperature zone is 300-320℃, and the temperature of the tenth temperature zone is 290-310℃.

7. The method for preparing the polyphenylene sulfide composite material according to claim 6, characterized in that, The temperature in the first temperature zone is 50℃, the temperature in the second temperature zone is 220℃, the temperature in the third temperature zone is 280℃, the temperature in the fourth temperature zone is 300℃, the temperature in the fifth temperature zone is 310℃, the temperature in the sixth temperature zone is 310℃, the temperature in the seventh temperature zone is 320℃, the temperature in the eighth temperature zone is 320℃, the temperature in the ninth temperature zone is 310℃, and the temperature in the tenth temperature zone is 300℃.

8. The method for preparing the polyphenylene sulfide composite material according to claim 4, characterized in that, In step (2), the extruder speed is 280-380 r / min; the die temperature is 310-340℃.

9. The application of a polyphenylene sulfide composite material as described in any one of claims 1-3 in a hydrogen fuel cell nozzle ring assembly.

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