High-glass fiber reinforced PPS composite material and preparation method thereof

Abstract

The application relates to a high-glass-fiber-reinforced PPS composite material and a preparation method thereof, which comprises the following components according to mass fraction ratio: PPS resin 21-50 parts; toughening agent 1-3 parts; nucleating agent 0.3-0.8 parts; glass fiber 40-60 parts; calcium sulfate whisker 5-10 parts; antioxidant 0.2-0.5 parts; lubricant 0.5-1.0 parts; black masterbatch 2-5 parts; wherein: the PPS resin is compounded by linear PPS with a melt index of 100-150 g / 10 min and linear PPS with a melt index of 250-350 g / 10 min according to a mass ratio of (1-2):1. In the application, the PPS resins with different melt indexes are compounded, the mechanical properties are ensured, the flow performance of the material is improved, and the defects of poor flow performance of low-melt-index materials and poor mechanical properties of high-melt-index materials are avoided; the mutual matching of the PPS resins with different melt indexes can also reduce the occurrence of floating fibers. Since the calcium sulfate whisker has the characteristics of small length and diameter and irregular distribution orientation in the resin, the rigidity of the material is ensured, and the problems of floating fibers and warping of the glass-fiber-reinforced product are solved.

Description

Technical Field

[0001] This application relates to the technical field of polymer composite materials, and in particular to a high glass fiber reinforced PPS composite material and its preparation method. Background Technology

[0002] Polyphenylene sulfide (PPS) is a high-performance engineering plastic with excellent overall properties, including high rigidity, high temperature resistance, and corrosion resistance. Due to the presence of benzene rings in its molecular chain, PPS is inherently brittle. Currently, common PPS composites on the market are typically made by adding glass fibers and other reinforcing materials, significantly improving the material's heat distortion temperature and impact strength. Reinforced and modified PPS composites can achieve long-term operating temperatures of up to [insert temperature range here] and short-term temperature resistance up to 270°C. Because of its excellent high-temperature resistance and mechanical properties, PPS is widely used in high-end hair straighteners. However, the addition of glass fibers can reduce the product's gloss and cause surface roughness due to loose fibers. Hair straightener manufacturers typically address this issue by spraying paint or electroplating the surface, which is not only cumbersome but also environmentally unfriendly. Faced with increasingly stringent national environmental regulations, more and more manufacturers are reducing product painting and opting for direct injection molding of materials with a high-gloss mirror effect to avoid the environmental pollution caused by painting.

[0003] Currently, the main methods for addressing fiber floating on the surface of PPS are to improve material flowability by adding lubricants and anti-fiber floating modifiers. However, because anti-fiber floating modifiers have poor dispersibility in PPS, adding too much flowability modifier will reduce the material's mechanical properties and heat resistance, while adding too little will not completely solve the fiber floating problem during PPS injection molding, thus failing to achieve a 100% high-gloss mirror finish. To address these shortcomings, the applicant believes it is essential to provide a PPS composite material that guarantees a high-gloss mirror finish without compromising its mechanical properties. Summary of the Invention

[0004] To address the issue of floating fibers in PPS and improve its high-gloss mirror finish, this application provides a high-glass fiber reinforced PPS composite material and its preparation method.

[0005] The first aspect is a high glass fiber reinforced PPS composite material, which adopts the following technical solution:

[0006] A high glass fiber reinforced PPS composite material, comprising the following components in parts by mass:

[0007] 21-50 parts PPS resin; 1-3 parts toughening agent; 0.3-0.8 parts nucleating agent; 40-60 parts glass fiber; 5-10 parts calcium sulfate whiskers; 0.2-0.5 parts antioxidant; 0.5-1.0 parts lubricant; 2-5 parts black masterbatch;

[0008] The PPS resin is made by compounding linear PPS with a melt index of 100-150 g / 10 min and linear PPS with a melt index of 250-350 g / 10 min in a mass ratio of (1-2):1.

[0009] By adopting the above technical solution, this application uses two types of linear PPS with different melt flow indices for compounding. This can increase the fluidity of the PPS material while ensuring its strength, thereby reducing the generation of floating fibers. Calcium sulfate whiskers are added to this application. Calcium sulfate whiskers have small length and diameter, are less prone to agglomeration, and have a large specific surface area, fully utilizing their size and quantum effects. When the PPS composite material is subjected to external stress, calcium sulfate whiskers can prevent further crack propagation, providing both toughening and strengthening effects to the PPS. Furthermore, the blending of calcium sulfate whiskers with glass fibers reduces the anisotropy of glass fiber-reinforced PPS due to the isotropic properties of calcium sulfate, thereby reducing the difference in shrinkage rates between the vertical and horizontal flow directions, which can suppress warping and reduce floating fibers.

[0010] Preferably, the high glass fiber reinforced PPS composite material comprises the following components in parts by weight: 49.6 parts PPS resin; 2 parts toughening agent; 0.5 parts nucleating agent; 40 parts glass fiber; 5 parts calcium sulfate whiskers; 0.3 parts antioxidant; 0.6 parts lubricant; and 2 parts black masterbatch.

[0011] The PPS resin used was a blend of linear PPS-3110 with a melt index of 150 g / 10 min and linear PPS-1130C with a melt index of 250 g / 10 min, in a mass ratio of 32.6:17.

[0012] By adopting the above technical solution and further optimizing the PPS ratio, it can have good mechanical properties without fiber floating, thus ensuring a 100% high-gloss mirror effect.

[0013] Preferably, the black masterbatch is composed of the following components by mass percentage: 15-20% carbon black, 15-20% BASF L0080 aniline black, 1-5% dispersant EBS, 5-10% flow modifier (anti-floating fiber improver) RH-704; the balance is carrier PA66 resin, and the sum of all components is 100%; the black masterbatch is obtained by twin-screw extrusion granulation of the above components.

[0014] By adopting the above technical solution, the black masterbatch in this application uses PA66 resin as a carrier, which has good compatibility with PPS and can be blended with PPS in any alloy ratio at high temperature. Both aniline black and the flow modifier (anti-fiber floating modifier) ​​have good dispersibility in PA66. Therefore, after adding aniline black and the anti-fiber floating modifier to PA66 to prepare the masterbatch, the compatibility of the anti-fiber floating modifier can be improved, suppressing fiber floating while reducing the loss of mechanical properties of PPS. Using PA66 resin as a carrier for aniline black can reduce the heat resistance effect of the carrier resin on the PPS material, and by utilizing the property of aniline black to dye glass fibers, the problem of exposed fibers on the surface can be further improved.

[0015] Preferably, the toughening agent is ethylene-glycidyl methacrylate copolymer BF-7M; the nucleating agent is talc.

[0016] By adopting the above technical solutions, the toughening agents and nucleating agents can achieve better toughening and strengthening effects, thereby ensuring the mechanical properties of PPS.

[0017] Preferably, the antioxidant is at least one of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], tetrakis(2,4-di-tert-butylphenyl-4,biphenyl)bisphosphonite, bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphonite, and bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphate; the lubricant is a mixture of Klein OP wax and silicone powder ST-LS100 in a mass ratio of (1-2):1.

[0018] Further preferably, the antioxidant is a mixture of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphate in a mass ratio of 1:2; the mass ratio of Klein OP wax and silicone powder ST-LS100 is 1:1.

[0019] By adopting the above technical solutions, this application can improve the antioxidant effect of PPS by controlling the type of antioxidant, thus preventing the material from decomposing under high temperature conditions and causing fiber floating on the product surface, which would affect the high-gloss mirror effect; the above-mentioned lubricant can better lubricate and reduce the occurrence of fiber floating.

[0020] Preferably, the glass fiber is a glass fiber with a diameter of 6-15 μm that has been surface-treated with a silane coupling agent.

[0021] By adopting the above technical solution, the surface treatment of glass fiber with silane coupling agent in this application can increase the dispersibility of glass fiber and increase its affinity with PPS, thereby making the glass fiber more uniformly dispersed and achieving a better reinforcing effect.

[0022] Secondly, this application provides a method for preparing high glass fiber reinforced PPS composite material, using the following technical solution:

[0023] A high glass fiber reinforced PPS composite material includes the following steps:

[0024] S1: Weigh the raw materials (excluding glass fiber) according to the proportion and add them to the mixer for mixing; obtain the mixture; S2: Add the mixture from step S1 to a twin-screw extruder, add the glass fiber from the glass fiber side feed port in the middle section of the extruder, set the melt extrusion process parameters, perform melt extrusion, and after extrusion, perform water cooling, air cooling and granulation to obtain glass fiber reinforced PPS composite material.

[0025] By adopting the above technical solution, in this application, when using melt extrusion granulation, the glass fiber enters from the middle side feed port. When it enters, the mixture is already basically in a molten state and has good fluidity, which can increase the uniformity of glass fiber mixing and reduce the generation of floating fibers.

[0026] Preferably, the stirring time in step S1 is 3-5 min; the melt extrusion process parameters in step S2 are: zone 1 temperature 300-310℃, zone 2 temperature 310-320℃, zone 3 temperature 320-330℃, zone 4 temperature 320-330℃, zone 5 temperature 310-320℃, zone 6 temperature 300-310℃, zone 7 temperature 250-260℃, zone 8 temperature 220-230℃, zone 9 temperature 220-230℃, and die head temperature 300-310℃; the main machine speed is 280-320 r / min.

[0027] By adopting the above technical solution, the process parameters of injection molding in this application can be controlled to further improve the fusion between the components, which helps to improve the mechanical properties of PPS mixed materials.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. In this application, by using PPS resins with different melt indices for compounding, the flow properties of the material are improved while ensuring mechanical properties, thus avoiding the disadvantages of poor flow properties of low melt index materials and poor mechanical properties of high melt index materials; the compounding of PPS with different melt indices can also reduce the occurrence of floating fibers.

[0030] 2. Because this application uses a glass-mineral blend of glass fiber and calcium sulfate whiskers, and takes advantage of the small length and diameter of calcium sulfate whiskers, and the fact that their distribution and orientation in the resin are not as standardized as those of glass fiber, the rigidity of the material is guaranteed, thus solving the problems of fiber floating and warping in glass fiber reinforced products.

[0031] 3. This application utilizes the principle that PPS and PA resins can be arbitrarily alloyed and blended at high temperatures, and selects PA66 resin as the carrier for aniline black masterbatch, which further reduces the heat resistance effect of the black carrier resin on the material. Furthermore, by utilizing the property that aniline black can dye glass fibers, the problem of exposed fibers on the surface is further improved and solved.

[0032] 4. In this application, the anti-floating fiber modifier is added to the black masterbatch to achieve uniform dispersion in the resin, which can improve the melt index of the material and reduce its impact on the mechanical properties of the material. Detailed Implementation

[0033] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments and comparative examples. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] In this invention, the raw materials include:

[0035] The glass fiber is a commercially available alkali-free glass fiber for PPS composite materials with a diameter of 6-15 μm and surface treated with a silane coupling agent. Specifically, it is Chongqing alkali-free glass fiber ECS or ECS.

[0036] The flow modifier RH-704 was purchased from Dongguan Rongtong Polymer Materials Technology Co., Ltd.

[0037] Calcium sulfate whiskers are fibrous single crystals of calcium sulfate with a diameter of 1-8 μm, specifically the commercially available CSW-400.

[0038] The lubricant is a mixture of Klein OP wax and ST-LS100 silicone powder in a mass ratio of 1:1.

[0039] The toughening agent is BF-7M, an ethylene-glycidyl methacrylate copolymer from Sumitomo Corporation of Japan.

[0040] The nucleating agent used was talc powder HTP05L.

[0041] The two PPS with different melt flow rates are: linear PPS-3110 with a melt flow rate of 150 g / 10 min and linear PPS-1130C with a melt flow rate of 250 g / 10 min.

[0042] Preparation of black masterbatch

[0043] Preparation Example 1

[0044] 150g of carbon black, 180g of BASF L0080 aniline black, 30g of dispersant EBS, 80g of flow modifier (anti-floating fiber improver) RH-704, and 560g of carrier PA66 resin were mixed and then extruded and granulated using a twin-screw extruder to obtain black masterbatch.

[0045] Preparation Example 2

[0046] 180g of carbon black, 150g of BASF L0080 aniline black, 50g of dispersant EBS, 60g of flow modifier (anti-floating fiber improver) RH-704, and 560g of carrier PA66 resin were mixed and then extruded and granulated using a twin-screw extruder to obtain black masterbatch.

[0047] Examples 1-5

[0048] The proportions of raw materials in Examples 1-5 are shown in Table 1, and the specific preparation processes are as follows:

[0049] The raw materials, excluding glass fiber, were stirred for 5 minutes in a high-speed mixer to obtain a homogeneous mixture. This mixture was then fed into a twin-screw extruder with a length-to-diameter ratio of 40:1 for melt extrusion. The temperatures of each section of the twin-screw extruder were as follows: Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9, and Die Head. The main extruder speed was 285 r / min. Glass fiber was added through the glass fiber side feed inlet in the middle section of the extruder. After melt blending extrusion, water cooling, air drying, pelletizing, and baking, a glass fiber reinforced PPS composite material was finally obtained.

[0050] The black masterbatch in Examples 1 to 5 was prepared in Preparation Example 1; the antioxidant was a mixture of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphate in a mass ratio of 1:2.

[0051] Table 1

[0052] Raw material composition (Kg) Example 1 Example 2 Example 3 Example 4 Example 5 PPS-3110 25.6 32.6 27.6 24.1 18.4 PPS-1130C 24.0 17.0 17.0 15.0 15.0 toughening agent BF-7M 2.0 2.0 2.0 2.0 2.0 antioxidants 0.3 0.3 0.3 0.3 0.3 nucleating agent HTP05L 0.5 0.5 0.5 0.5 0.5 lubricant 0.6 0.6 0.6 0.6 0.8 Calcium sulfate whiskers CSW-400 5.0 5.0 10.0 10.0 10.0 Glass fiber ECS309A 40.0 40.0 40.0 45.0 50.0 Black masterbatch (Preparation Example 1) 2.0 2.0 2.0 2.5 3.0

[0053] Comparative Example 1

[0054] It is basically the same as Example 1, except that calcium sulfate whiskers are not added in Comparative Example 1.

[0055] Comparative Example 2

[0056] It is basically the same as Example 2, except that 49.6 kg of PPS-3110 was added in Comparative Example 2, but PPS-1130C was not added.

[0057] Comparative Example 3

[0058] The results are basically the same as in Example 2, except that 49.6 kg of PPS-1130C was added to Comparative Example 3, but PPS-3110 was not added.

[0059] Comparative Example 4

[0060] The comparison is basically the same as Example 1, except that in Comparative Example 4, commercially available Cabot Black Masterbatch 2014 is not added to replace the black masterbatch in Preparation Example 1.

[0061] The particulate materials prepared in Examples 1-5 and Comparative Examples 1-4 were first dried in a forced-air drying oven at 130°C for 4 hours. Then, the dried particulate materials were injection molded into standard test strips for testing. During the sample preparation process, a mold temperature controller was used to maintain the mold temperature at 145°C. The test performance is shown in Table 1 below:

[0062] Performance testing methods:

[0063] (1) Notched impact strength test: Test standard ISO 180

[0064] (2) Tensile strength test: Test standards ISO 527-1 & ISO 527-2

[0065] (3) Bending strength test: Test standard ISO 178

[0066] (4) Heat distortion temperature test: Test standard ISO 75-2

[0067] (5) Blackness test: The L value of the injection molded color sample is measured using a colorimeter.

[0068] (6) Floating fiber effect test: Injection molded into a disc of a certain diameter and thickness, and visually observe the floating fiber effect on the surface.

[0069] The test results of Examples 1-5 and Comparative Examples 1-4 are shown in Table 2:

[0070] Table 2

[0071]

[0072] Based on the data from Examples 1 and 2, increasing the proportion of PPS-3110 in Example 2 resulted in an overall improvement in the strength of the material, and no fiber floating phenomenon was observed.

[0073] Compared with Example 2, Example 3 increased the content of calcium sulfate whiskers and reduced the proportion of PPS-3110. From the perspective of overall performance, its strength decreased to a certain extent, but no fiber floating phenomenon occurred.

[0074] Example 4, based on Example 3, further reduced the content of PPS-3110 and increased the content of glass fiber and black masterbatch. Except for a slight decrease in impact strength, other mechanical properties (tensile and flexural strength) were improved, but no fiber floating phenomenon was observed. In Example 5, the content of glass fiber and black masterbatch was increased, and the content of PPS-3110 was reduced. Its impact strength was slightly reduced, but other mechanical properties were further improved, and no fiber floating phenomenon was observed.

[0075] Based on the data from Examples 1 to 5, no fiber floating phenomenon occurred when the glass fiber content was increased from 40% to 50%, and the strength remained at a high level.

[0076] Compared with Comparative Example 1, Example 1 did not add calcium sulfate whiskers. In terms of performance, its strength was significantly and slightly improved, but fiber floating phenomenon occurred. The improvement in strength was mainly due to the increase in the overall glass fiber content. However, the presence of slight fiber floating phenomenon indicates that calcium sulfate whiskers have the effect of inhibiting the occurrence of fiber floating.

[0077] Compared with Comparative Example 2, Example 2 mainly added PPS-3110. PPS-3110 has poor fluidity. Although its strength is improved compared with Example 2, even with the addition of black masterbatch and calcium sulfate whiskers, it is still impossible to suppress the formation of floating fibers.

[0078] Compared with Comparative Example 3, Example 2 mainly added PPS-3110C. Although PPS-3110C had good flow and no floating fibers appeared, its strength was not improved much even with the addition of glass fiber, and it did not reach the strength required by the product.

[0079] Compared with Comparative Example 4, Example 2 mainly uses commercially available black masterbatch instead of the black masterbatch in Preparation Example 1 of this application. In terms of performance, although its strength and black value are better than those of Example 2, it exhibits severe fiber floating phenomenon, which makes it difficult to meet product requirements. This also shows that the black masterbatch in this application can play a role in suppressing fiber floating.

[0080] Examples 6-8

[0081] The raw material ratios in Examples 6-8 are shown in Table 3, and the specific preparation methods are as follows:

[0082] Table 3

[0083]

[0084] Raw materials, excluding glass fiber, were stirred for 4 minutes in a high-speed mixer to obtain a homogeneous mixture. This mixture was then fed into a twin-screw extruder with a length-to-diameter ratio of 40:1 for melt extrusion. The temperatures of each section of the twin-screw extruder were as follows: Zone 1 310℃, Zone 2 320℃, Zone 3 330℃, Zone 4 330℃, Zone 5, Zone 6 310℃, Zone 7 250℃, Zone 8, Zone 9 220℃, and Die temperature 300℃; the main extruder speed was 300 r / min. Glass fiber was added through the glass fiber side feed inlet in the middle section of the extruder. After melt blending extrusion, water cooling, air drying, pelletizing, and drying, a glass fiber reinforced PPS composite material was finally obtained.

[0085] The properties of the PPS composite materials in Examples 6-8 were tested, and the results are shown in Table 4:

[0086] Table 4

[0087] performance Example 6 Example 7 Example 8 <![CDATA[Izod impact strength (Kj / m 2 )]]> 10.8 10.3 9.8 Tensile strength (MPa) 148 140 137 Bending strength (MPa) 207 203 200 Heat distortion temperature (°C) 270 267 262 Black value (L value) 29.5 29.8 29.9 floating fiber none none none

[0088] In Examples 6-8, the ratio of calcium sulfate whiskers to glass fibers was mainly used. As can be seen from the data in Table 4, no fiber floating phenomenon was observed. In terms of mechanical properties, Example 6 has the highest strength, mainly because Example 6 has the highest glass fiber content, thus its strength is the highest.

[0089] Examples 9-11

[0090] The raw material ratios in Examples 9-11 are shown in Table 5, and the specific preparation methods are as follows:

[0091] Table 5

[0092]

[0093] Raw materials, excluding glass fiber, were stirred for 4 minutes in a high-speed mixer to obtain a homogeneous mixture. This mixture was then fed into a twin-screw extruder with a length-to-diameter ratio of 40:1 for melt extrusion. The temperatures of each section of the twin-screw extruder were as follows: Zone 1 310℃, Zone 2 320℃, Zone 3 330℃, Zone 4 330℃, Zone 5, Zone 6 310℃, Zone 7 250℃, Zone 8, Zone 9 220℃, and Die temperature 300℃; the main extruder speed was 300 r / min. Glass fiber was added through the glass fiber side feed inlet in the middle section of the extruder. After melt blending extrusion, water cooling, air drying, pelletizing, and baking, a glass fiber reinforced PPS composite material was finally obtained.

[0094] The properties of the PPS composite materials in Examples 9-11 were tested, and the results are shown in Table 6:

[0095] Table 6

[0096]

[0097] Examples 9-11 mainly involve changing the component ratio of PPS-3110 and PPS-1130C. Based on the data, the mechanical strength in Example 11 is optimal, and no fiber floating phenomenon occurs, indicating that the higher the PPS-3110 content, the optimal mechanical strength.

[0098] In Comparative Example 5, the proportion of PPS-3110 was further increased. Although the strength was further improved, slight fiber floating occurred.

[0099] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high glass fiber reinforced PPS composite material, characterized in that, According to the mass fraction, it includes the following components: 21-50 parts PPS resin; 1-3 parts toughening agent; 0.3-0.8 parts nucleating agent; 40-60 parts glass fiber; 5-10 parts calcium sulfate whiskers; 0.2-0.5 parts antioxidant; 0.5-1.0 parts lubricant; 2-5 parts black masterbatch; Among them, the PPS resin is a mixture of linear PPS with a melt index of 100~150g / 10min and linear PPS with a melt index of 250~350g / 10min in a mass ratio of (1~2):

1. The black masterbatch, by mass percentage, is composed of the following components: 15-20% carbon black, 15-20% BASF L0080 aniline black, 1-5% dispersant EBS, and 5-10% flow modifier RH-704; the balance is carrier PA66 resin, and the sum of all components is 100%; the black masterbatch is obtained by twin-screw extrusion granulation of the above components. The calcium sulfate whiskers are fibrous single crystals of calcium sulfate with a diameter of 1-8 μm, and the glass fibers are glass fibers with a diameter of 6-15 μm that have been surface-treated with a silane coupling agent.

2. The high glass fiber reinforced PPS composite material according to claim 1, characterized in that, According to the mass fraction, it includes the following components: 49.6 parts PPS resin; 2 parts toughening agent; 0.5 parts nucleating agent; 40 parts glass fiber; 5 parts calcium sulfate whiskers; 0.3 parts antioxidant; 0.6 parts lubricant; 2 parts black masterbatch; The PPS resin used was a blend of linear PPS-3110 with a melt index of 150 g / 10 min and linear PPS-1130C with a melt index of 250 g / 10 min, in a mass ratio of 32.6:

17.

3. The high glass fiber reinforced PPS composite material according to claim 1, characterized in that, The toughening agent is ethylene-glycidyl methacrylate copolymer BF-7M; the nucleating agent is talc.

4. The high glass fiber reinforced PPS composite material according to claim 1, characterized in that, The antioxidant is at least one of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], tetrakis(2,4-di-tert-butylphenyl-4,biphenyl)bisphosphonite, bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphonite, and bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphate; the lubricant is a mixture of Klein OP wax and silicone powder ST-LS100 in a mass ratio of (1~2):

1.

5. The high glass fiber reinforced PPS composite material according to claim 4, characterized in that, The antioxidant is a mixture of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphate in a mass ratio of 1:2; the mass ratio of Klein OP wax and silicone powder ST-LS100 is 1:

1.

6. A method for preparing a high glass fiber reinforced PPS composite material according to any one of claims 1 to 5, comprising the following steps: S1: Weigh the raw materials (excluding glass fiber) according to the specified proportions and add them to the mixer for mixing; to obtain the mixture; S2: Add the mixture from step S1 to a twin-screw extruder. Add glass fiber from the glass fiber side feed port in the middle section of the extruder. After setting the melt extrusion process parameters, perform melt extrusion. After extrusion, perform water cooling, air cooling and granulation to obtain glass fiber reinforced PPS composite material.

7. The method for preparing the high glass fiber reinforced PPS composite material according to claim 6, characterized in that, The stirring time in step S1 is 3-5 min; the melt extrusion process parameters in step S2 are: zone 1 temperature 300-310℃, zone 2 temperature 310-320℃, zone 3 temperature 320-330℃, zone 4 temperature 320℃, zone 5 temperature 310-320℃, zone 6 temperature 300-310℃, zone 7 temperature 250℃, zone 8 temperature 220-230℃, zone 9 temperature 220-230℃, die head temperature 300-310℃; the main machine speed is 280-320 r / min.

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