High-toughness ppe / pps alloy material and preparation method thereof

Abstract

The application relates to the technical field of high polymer composite material processing, and discloses a high-toughness PPE / PPS alloy material and a preparation method thereof.The alloy material comprises the following components in parts by weight: PPE 35-50 parts, PPS 15-40 parts, a compatilizer PPH 10-15 parts, a compatilizer GPM 3-5 parts, a compatilizer EMA 3-5 parts, POE 5-10 parts and a composite antioxidant 0.4-0.8 parts.The high-toughness PPE / PPS alloy material prepared by the application has obviously better impact toughness, high fluidity and heat resistance.

Description

Technical Field

[0001] This invention relates to the field of polymer composite material processing technology, specifically to a high-toughness PPE / PPS alloy material and its preparation method. Background Technology

[0002] Polyphenylene oxide (PPE) is a white, non-toxic, transparent powder with a low relative density. It possesses excellent mechanical strength, stress relaxation resistance, creep resistance, heat resistance, water resistance, water vapor resistance, and dimensional stability. It also exhibits outstanding electrical insulation, good abrasion resistance, and electrical properties; furthermore, PPE has the best dielectric properties among plastics. However, its poor melt flowability, difficult processing and molding, and insensitivity to non-polar solvents significantly limit its applications.

[0003] Polyphenylene sulfide (PPS) is a white or off-white, highly crystalline, hard and brittle polymer with a crystallinity of up to 60-80%. The density of PPS is approximately 1.3 g / cm³. 3 PPS has a glass transition temperature of approximately 85℃, a crystallization temperature of approximately 125℃, a melting point between 280℃ and 290℃, and a decomposition temperature greater than 500℃. PPS exhibits good flame retardancy, with an oxygen index as high as 46%–53%, achieving UL94V-0 rating without the need for flame retardants. PPS is also heat-resistant, capable of continuous use within the 200–230℃ range while maintaining high toughness and strength. PPS has a wide range of applications, demonstrating excellent dimensional stability in various environments. Furthermore, it retains excellent electrical resistance and chemical corrosion resistance even under high-temperature, high-humidity, and high-frequency conditions.

[0004] However, PPE is an amorphous polymer, while PPS is a crystalline polymer. PPE / PPS alloys are typical blends of amorphous and crystalline polymers. Simple blends of these two incompatible polymers exhibit poor interfacial adhesion and lack morphological stability. Furthermore, the difference in melt viscosity between PPE and PPS leads to stress cracking in these alloys, making it difficult to achieve satisfactory impact, tensile, and flexural properties, thus significantly limiting the application of PPE / PPS blends. Therefore, the development of alloy materials must utilize compatibilizers for compatibilization, employ specialized preparation processes to overcome the shortcomings of both PPE and PPS, and combine their advantages to create high-performance alloy materials.

[0005] The development of PPE / PPS alloys both domestically and internationally is showing a positive trend, especially in the electrical and electronic fields, where they have become an indispensable key material. Through modification and composite technologies, the performance of PPE / PPS alloys has been further improved, and their application areas have expanded accordingly. This development trend reflects not only the progress of industry technology but also changes in market demand. With continuous technological advancements and the expansion of application areas, the position of PPE / PPS alloys in domestic and international markets is becoming increasingly important. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned technical problems by proposing a high-toughness PPE / PPS alloy material and its preparation method.

[0007] The technical solution adopted is as follows:

[0008] A first aspect of the present invention provides a high-toughness PPE / PPS alloy material, comprising the following components in parts by weight:

[0009] 35-50 parts PPE, 15-40 parts PPS, 10-15 parts PPH compatibilizer, 3-5 parts GPM compatibilizer, 3-5 parts EMA compatibilizer, 5-10 parts POE, and 0.4-0.8 parts composite antioxidant.

[0010] Preferably, the PPE is produced by Nantong Xingchen Synthetic Materials Co., Ltd., and has a molecular weight of 10,000 to 50,000.

[0011] More preferably, the PPS is produced by Tongling Ruijia Special Materials Co., Ltd., and has a molecular weight of 10,000 to 50,000.

[0012] In a preferred embodiment, the compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0013] According to a preferred embodiment, the compatibilizer PPH is prepared as follows: raw materials are weighed according to the specified weight ratio, and mixed in a high-speed mixer for 5 minutes. The mixture is then discharged and granulated using a twin-screw extruder. The processing temperature of the twin-screw extruder is 240–260°C, and the screw speed is 38–42 Hz.

[0014] Preferably, the compatibilizer GPM is SEBS grafted maleic anhydride, and the compatibilizer GPM is GPM5618 produced by Ningbo Nengzhiguang New Material Technology Co., Ltd.

[0015] More preferably, the composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1.

[0016] The second aspect of the present invention provides a method for preparing a high-toughness PPE / PPS alloy material as described in the first aspect of the present invention, wherein the raw materials are weighed according to the weight ratio, and mixed evenly in a high-speed mixer, then co-extruded by a twin-screw extruder, cooled, pelletized, and dried.

[0017] The mixing conditions must at least meet the following requirements: stirring speed of 60~80 rpm and time of 2~5 min;

[0018] The parameters of the twin-screw extruder should at least meet the following requirements: temperature 50–320℃, and main extruder speed 46–50Hz.

[0019] The beneficial effects of this invention are:

[0020] (1) In this invention, PPE and PPS are selected in a specific ratio as matrix materials (of which PPE is the main matrix material), and polyphenylene ether grafted maleic anhydride, SEBS grafted maleic anhydride and ethylene methyl acrylate copolymer are selected in a specific amount as composite compatibilizers. Among them, polyphenylene ether grafted maleic anhydride is thermodynamically compatible with PPE and PPS is compatible with block copolymers, so that PPE and PPS can be completely blended and mixed, which improves the compatibility between the components in this invention.

[0021] (2) The present invention selects a specific amount of polyolefin elastomer as toughening agent and adds a specific amount of high temperature composite antioxidant. Under the action of block copolymer as composite compatibilizer and in combination with the other technical features of the present invention, the PPE / PPS alloy material obtained has excellent characteristics such as ultra-high impact toughness, high fluidity, and long aging resistance. It also has excellent comprehensive properties such as rigidity, toughness, and heat resistance.

[0022] (3) According to the functional requirements of the product, the present invention can add appropriate functional additives to the formulation of the present invention to achieve the required performance. For example, if glass fiber is added to the present invention, a reinforced modified alloy material can be derived, which can significantly improve the mechanical properties of the present invention. Detailed Implementation

[0023] The endpoints and any values ​​of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of the various ranges, the endpoint values ​​of the various ranges and individual point values, and individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed herein.

[0024] In this invention, SEBS is a linear triblock copolymer with polystyrene as the end segment and ethylene-butene copolymer obtained by hydrogenation of polybutadiene as the middle elastic block; EMA is ethylene methyl acrylate copolymer.

[0025] It should be noted that, in all aspects of the present invention, the same components in each aspect are described only once in one aspect and not repeatedly, and those skilled in the art should not understand this as a limitation of the present invention.

[0026] The present invention will be described in detail below through examples. In the following examples, unless otherwise specified, the raw materials are all commercially available products.

[0027] In the following examples, the PPE was purchased from Nantong Xingchen Synthetic Materials Co., Ltd., and its grade was LXN040.

[0028] PPS, purchased from Tongling Ruijia Special Materials Co., Ltd., brand name Ruijia 2025;

[0029] The compatibilizer GPM is SEBS grafted maleic anhydride, purchased from Ningbo Nengzhiguang New Material Technology Co., Ltd., with the grade GPM5618.

[0030] The compatibilizer EMA was purchased from the French Arkema Group, and its brand name was AX8900.

[0031] POE, purchased from Dow Chemical Company, USA, grade POE8150;

[0032] 1,3,5-Trimethyl-2,4,6-Tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, purchased from Shenzhen Zhongyanwang Technology Co., Ltd., brand name Antioxidant 330;

[0033] Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite, purchased from Shanghai Songna New Materials Co., Ltd., brand name Antioxidant 626.

[0034] Example 1:

[0035] A high-toughness PPE / PPS alloy material, comprising the following components by weight:

[0036] 35 parts PPE, 30 parts PPS, 15 parts PPH compatibilizer, 5 parts GPM compatibilizer, 5 parts EMA compatibilizer, 10 parts POE, and 0.8 parts compound antioxidant.

[0037] The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1, wherein, by weight, the 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is 0.4 parts.

[0038] The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0039] The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

[0040] The preparation method of high-toughness PPE / PPS alloy material is as follows (according to the formula and process parameters in Table 1):

[0041] Weigh the raw materials according to the specified weight ratio, add them to a high-speed mixer and mix thoroughly. Then, extrude the mixture using a twin-screw extruder, cool, pelletize, and dry.

[0042] Example 2:

[0043] A high-toughness PPE / PPS alloy material, comprising the following components by weight:

[0044] 50 parts PPE, 15 parts PPS, 15 parts PPH compatibilizer, 5 parts GPM compatibilizer, 5 parts EMA compatibilizer, 10 parts POE, and 0.8 parts compound antioxidant.

[0045] The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1, wherein, by weight, the 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is 0.4 parts.

[0046] The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0047] The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

[0048] The preparation method of high-toughness PPE / PPS alloy material is as follows (according to the formula and process parameters in Table 1):

[0049] Weigh the raw materials according to the specified weight ratio, add them to a high-speed mixer and mix thoroughly. Then, extrude the mixture using a twin-screw extruder, cool, pelletize, and dry.

[0050] Example 3:

[0051] A high-toughness PPE / PPS alloy material, comprising the following components by weight:

[0052] 42 parts PPE, 23 parts PPS, 15 parts PPH compatibilizer, 5 parts GPM compatibilizer, 5 parts EMA compatibilizer, 10 parts POE, and 0.8 parts compound antioxidant.

[0053] The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1, wherein, by weight, the 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is 0.4 parts.

[0054] The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0055] The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

[0056] The preparation method of high-toughness PPE / PPS alloy material is as follows (according to the formula and process parameters in Table 1):

[0057] Weigh the raw materials according to the specified weight ratio, add them to a high-speed mixer and mix thoroughly. Then, extrude the mixture using a twin-screw extruder, cool, pelletize, and dry.

[0058] Example 4:

[0059] A high-toughness PPE / PPS alloy material, comprising the following components by weight:

[0060] 35 parts PPE, 39 parts PPS, 15 parts PPH compatibilizer, 3 parts GPM compatibilizer, 3 parts EMA compatibilizer, 5 parts POE, and 0.8 parts compound antioxidant.

[0061] The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1, wherein, by weight, the 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is 0.4 parts.

[0062] The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0063] The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

[0064] The preparation method of high-toughness PPE / PPS alloy material is as follows (according to the formula and process parameters in Table 1):

[0065] Weigh the raw materials according to the specified weight ratio, add them to a high-speed mixer and mix thoroughly. Then, extrude the mixture using a twin-screw extruder, cool, pelletize, and dry.

[0066] Example 5:

[0067] A high-toughness PPE / PPS alloy material, comprising the following components by weight:

[0068] 35 parts PPE, 30 parts PPS, 15 parts PPH compatibilizer, 5 parts GPM compatibilizer, 5 parts EMA compatibilizer, 5 parts POE, and 0.8 parts compound antioxidant.

[0069] The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1, wherein, by weight, the 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is 0.4 parts.

[0070] The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0071] The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

[0072] The preparation method of high-toughness PPE / PPS alloy material is as follows (according to the formula and process parameters in Table 1):

[0073] Weigh the raw materials according to the specified weight ratio, add them to a high-speed mixer and mix thoroughly. Then, extrude the mixture using a twin-screw extruder, cool, pelletize, and dry.

[0074] Comparative Example 1

[0075] A high-toughness PPE / PPS alloy material, comprising the following components by weight:

[0076] 35 parts PPE, 30 parts PPS, 15 parts PPH compatibilizer, 5 parts GPM compatibilizer, 0 parts EMA compatibilizer, 10 parts POE, and 0.8 parts compound antioxidant.

[0077] The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1, wherein, by weight, the 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is 0.4 parts.

[0078] The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0079] The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

[0080] The preparation method of high-toughness PPE / PPS alloy material is as follows (according to the formula and process parameters in Table 1):

[0081] Weigh the raw materials according to the specified weight ratio, add them to a high-speed mixer and mix thoroughly. Then, extrude the mixture using a twin-screw extruder, cool, pelletize, and dry.

[0082] Comparative Example 2

[0083] A high-toughness PPE / PPS alloy material, comprising the following components by weight:

[0084] 35 parts PPE, 30 parts PPS, 15 parts PPH compatibilizer, 0 parts GPM compatibilizer, 5 parts EMA compatibilizer, 10 parts POE, and 0.8 parts compound antioxidant.

[0085] The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1, wherein, by weight, the 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is 0.4 parts.

[0086] The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0087] The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

[0088] The preparation method of high-toughness PPE / PPS alloy material is as follows (according to the formula and process parameters in Table 1):

[0089] Weigh the raw materials according to the specified weight ratio, add them to a high-speed mixer and mix thoroughly. Then, extrude the mixture using a twin-screw extruder, cool, pelletize, and dry.

[0090] Comparative Example 3

[0091] A high-toughness PPE / PPS alloy material, comprising the following components by weight:

[0092] 35 parts PPE, 30 parts PPS, 15 parts PPH compatibilizer, 5 parts GPM compatibilizer, 5 parts EMA compatibilizer, 0 parts POE, and 0.8 parts compound antioxidant.

[0093] The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:1, wherein, by weight, the 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene is 0.4 parts.

[0094] The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

[0095] The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

[0096] The preparation method of high-toughness PPE / PPS alloy material is as follows (according to the formula and process parameters in Table 1):

[0097] Weigh the raw materials according to the specified weight ratio, add them to a high-speed mixer and mix thoroughly. Then, extrude the mixture through a twin-screw extruder, cool, pelletize, and dry.

[0098] Table 1:

[0099] ;

[0100] Test Example 1

[0101] The high-toughness PPE / PPS alloy materials obtained in the above examples and comparative examples were placed in a vacuum oven and dried at 120°C for 2 hours. They were then transferred to an injection molding machine and injection molded at 310~320°C to obtain sample strips. The samples were then placed in an environment with a temperature of 23±2°C and a relative humidity of 50±10% for 48 hours before performance testing was conducted.

[0102] Melt flow index was tested in accordance with ISO 1133 standard.

[0103] Tensile strength was tested according to the ASTM D638 standard.

[0104] Bending strength was tested according to ASTM D790 standard.

[0105] Notched impact strength was tested according to ASTM D256 standard.

[0106] The heat distortion temperature was tested in accordance with the ASTM D648 standard.

[0107] The test results are shown in Table 2:

[0108] Table 2:

[0109] As can be seen from the results in Table 2, by adopting the technical solution of the present invention, combined with other technical features such as the specific process of the twin-screw extruder, the compatibility problem of raw materials is well solved. The high-toughness PPE / PPS alloy material obtained by the embodiments of the present invention has significantly better impact toughness, high fluidity, and heat resistance.

[0110] Furthermore, the results in Table 2 show that the performance of the PPE / PPS alloy materials obtained with and without compatibilizers GPM, EMA, and POE differs significantly. Specifically, in Comparative Example 1, without the addition of compatibilizer GPM, the compatibility between the components deteriorates, resulting in reduced alloy toughness and unsatisfactory performance. In Comparative Example 2, without the addition of compatibilizer EMA, the compatibility between the components deteriorates, resulting in reduced alloy toughness and unsatisfactory performance. Comparative Example 3 did not contain POE, while Example 5 contained a small amount of POE. It can be seen that the amount of POE added has a significant impact on the toughness of the obtained PPE / PPS alloy materials.

[0111] The preferred embodiments of the present invention have been described in detail above; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various technical features in any other suitable manner. These simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A high-toughness PPE / PPS alloy material, characterized in that, By weight, it comprises the following components: 35-50 parts PPE, 15-40 parts PPS, 10-15 parts PPH compatibilizer, 3-5 parts GPM compatibilizer, 3-5 parts EMA compatibilizer, 5-10 parts POE, and 0.4-0.8 parts composite antioxidant; The compatibilizer PPH comprises, by weight, the following components: 80 parts polyphenylene ether, 20 parts polystyrene, 3 parts glycidyl methacrylate, 2 parts maleic anhydride, 0.3 parts di-tert-butyl peroxide isopropylbenzene, and 0.2 parts benzoin.

2. The high-toughness PPE / PPS alloy material according to claim 1, wherein, The PPE is produced by Nantong Xingchen Synthetic Materials Co., Ltd., and has a molecular weight of 10,000 to 50,000. And / or, the PPS is produced by Tongling Ruijia Special Materials Co., Ltd., with a molecular weight of 10,000 to 50,000.

3. The high-toughness PPE / PPS alloy material according to claim 1, wherein, The compatibilizer PPH is prepared as follows: weigh the raw materials according to the weight ratio, put them into a high-speed mixer and mix for 5 minutes, discharge the material, and then use a twin-screw extruder for blending and granulation; the processing temperature of the twin-screw extruder is 240-260℃, and the screw speed is 38-42Hz.

4. The high-toughness PPE / PPS alloy material according to claim 1 or 2, wherein, The compatibilizer GPM is SEBS grafted maleic anhydride, and the compatibilizer GPM is GPM5618 produced by Ningbo Nengzhiguang New Material Technology Co., Ltd.

5. The high-toughness PPE / PPS alloy material according to claim 1 or 2, wherein, The composite antioxidant is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite in a content ratio of 1:

1.

6. A method for preparing a high-toughness PPE / PPS alloy material as described in any one of claims 1-5, characterized in that, Weigh the raw materials according to the specified weight ratio, put them into a high-speed mixer and mix them evenly. Then, extrude them through a twin-screw extruder, cool, pelletize, and dry them. The mixing conditions must at least meet the following requirements: stirring speed of 60~80 rpm and time of 2~5 min; The parameters of the twin-screw extruder should at least meet the following requirements: temperature 50–320℃, and main extruder speed 46–50Hz.

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