Polyphenyl ether-polyamide composition as well as preparation method and application thereof

Abstract

The invention discloses a polyphenyl ether-polyamide composition as well as a preparation method and application thereof. The polyphenyl ether-polyamide composition is prepared from the following components in parts by weight: 34.5 to 51 parts of PPE resin, 9 to 46 parts of aromatic PA resin, 0 to 31 parts of aliphatic PA resin, 6 to 12 parts of a zinc-containing flame retardant, 2 to 4 parts of a phosphazene flame retardant, 0.2 to 1 part of a compatilizer and 2 to 5 parts of a toughening agent, the mass fraction of the total amount of aromatic rings in the polyphenyl ether-polyamide composition is 29-40%. The polyphenyl ether-polyamide composition has relatively good low-temperature toughness, 0-grade CTI and excellent heat resistance on the premise of flame retardant requirements.

Description

Technical Field

[0001] The present invention belongs to the technical field of engineering plastics, and more specifically, relates to a polyphenylene ether-polyamide composition, a preparation method thereof, and an application thereof. Background Art

[0002] Polyphenylene ether (PPE) materials have characteristics such as high strength, high rigidity, high heat resistance, and low smoke density. Due to its excellent physical properties, heat resistance, chemical resistance, electrical insulation, and processing convenience, PPE has become an ideal material for photovoltaic connectors. However, PPE also has disadvantages such as poor fluidity and easy stress cracking, which limit its application in high-demand scenarios. PPE can be blended with polyamide (PA) to prepare an alloy, which can well improve the deficiencies of the PPE material itself and at the same time improve the problems of easy water absorption and poor dimensional stability of PA itself.

[0003] Photovoltaic connectors are key components in solar photovoltaic systems. Their main function is to connect solar panels to inverters or other electrical devices to ensure stable power transmission. Photovoltaic connectors are usually installed outdoors and are exposed to various environmental factors, such as high temperature, direct sunlight, extremely cold climate and other environmental factors. Therefore, photovoltaic connectors usually require materials to have good flame retardancy, good low-temperature toughness, and higher heat resistance. In addition, photovoltaic connectors need to have better insulation performance under high voltage, reduce the risk of arc and tracking, and improve the safety and reliability of the system. Therefore, photovoltaic connectors also need to have good CTI performance. How to provide a polyphenylene ether composition with good flame retardancy, good low-temperature toughness, high heat resistance, and excellent insulation performance has become a technical problem that needs to be solved urgently. Summary of the Invention

[0004] In view of the above existing technical problems, the primary object of the present invention is to provide a polyphenylene ether-polyamide composition, which has excellent flame retardancy while also having good low-temperature toughness, high heat resistance, and excellent insulation performance.

[0005] The second object of the present invention is to provide a preparation method of a polyphenylene ether-polyamide composition.

[0006] The third object of the present invention is to provide an application of a polyphenylene ether-polyamide composition in the fields of photovoltaics, energy storage, and new energy.

[0007] In order to achieve the above objects, the present invention is realized through the following technical solutions:

[0008] A polyphenylene ether-polyamide composition, by weight parts, comprises the following components: 34.5-51 parts of PPE resin, 9-46 parts of aromatic PA resin, 0-31 parts of aliphatic PA resin, 6-12 parts of zinc-containing flame retardant, 2-4 parts of phosphazene flame retardant, 0.2-1 part of compatibilizer, and 2-5 parts of toughening agent;

[0009] The mass fraction of the total amount of aromatic rings in the polyphenylene ether-polyamide composition is 29-40%.

[0010] During the conventional combustion process, the zinc-containing flame retardant plays an auxiliary role in flame retardancy by acting as an acid-binding agent. Adding only the zinc-containing flame retardant in ordinary aliphatic PA resins (such as nylon 6 / nylon 66) cannot meet the V-0 flame retardancy of the material. In the present invention, by adding aromatic PA resin to PPE and controlling the mass fraction of aromatic rings in the polyphenylene ether-polyamide composition, the composition system has a more suitable content of aromatic ring structure, which can serve as a carbon source in the alloy system. When combined with the zinc-containing flame retardant and phosphazene flame retardant, a dense anti-burning layer is formed using the high aromatic structure of the resin itself as a carbon source and the zinc-containing flame retardant. The small amount of compounded phosphazene flame retardant can quickly achieve the condensed-phase flame retardancy effect, thereby achieving the purpose of efficient flame retardancy and realizing the high-efficiency flame retardancy of the material. And the aliphatic PA resin can be added or not added to the system. The aliphatic PA resin has chain segment flexibility, which can ensure the processing performance and toughness of the composition.

[0011] Furthermore, the zinc-containing flame retardant is used as the main flame retardant, and is further combined with the auxiliary phosphazene flame retardant, which avoids the degradation problem of the composition system during the high-temperature processing, and ensures the mechanical properties and appearance of the composition system. In addition, the aliphatic chain segments of the aromatic PA resin in the composition system can also prevent the excessive rigidity caused by the too high content of aromatic ring structure, and avoid affecting the low-temperature impact performance of the polyphenylene ether-polyamide composition. In terms of heat resistance performance, by controlling the ratio of polyphenylene ether and toughening agent, the content of toughening agent in the composition system is reduced, which improves the heat resistance performance that affects the composition system. Further, the present invention adds a compatibilizer to improve the poor compatibility between amorphous polyphenylene ether and crystalline resin nylon, and improves the bonding ability between the two resin interfaces, which is crucial for ensuring the toughness of the composition.

[0012] Generally speaking, the higher the carbonization efficiency of the polyphenylene ether-polyamide composition, the more the insulation performance (CTI performance) of the polyphenylene ether-polyamide composition will decay. However, the flame retardant layer formed by the zinc-containing flame retardant in the present invention can act as a barrier to avoid the performance of the conductive path, ensuring that the polyphenylene ether-polyamide composition can meet the 0-level CTI requirement.

[0013] In the present invention, a PPE resin and an aromatic PA resin are combined, and the mass fraction of aromatic rings in the polyphenylene ether-polyamide composition is controlled. A zinc-containing flame retardant is combined with an auxiliary phosphazene flame retardant, and a low content of toughening agent is used. Through the compatibilizing effect of the compatibilizer, the prepared polyphenylene ether-polyamide composition has good low-temperature toughness, 0-level CTI and excellent heat resistance while meeting the basic requirements of V-0 flame retardancy.

[0014] Specifically, the mass percentage of the PPE resin in the polyphenylene ether-polyamide composition is not less than 26.0%. Further preferably, the mass percentage of the PPE resin in the polyphenylene ether-polyamide composition is not less than 34.5%.

[0015] Specifically, the mass percentage of the aromatic PA resin in the polyphenylene ether-polyamide composition is not less than 8.1%. Further preferably, the mass percentage of the aromatic PA resin in the polyphenylene ether-polyamide composition is not less than 10%.

[0016] Specifically, the PPE resin can be 36 parts, 38 parts, 40 parts, 42 parts, 44 parts, 46 parts, 48 parts, 50 parts, etc., or an interval range formed by any of the above values; the aromatic PA resin can be 11 parts, 13 parts, 15 parts, 17 parts, 19 parts, 21 parts, 23 parts, 25 parts, 27 parts, 29 parts, 31 parts, 33 parts, 35 parts, 37 parts, 40 parts, 43 parts, etc., or an interval range formed by any of the above values. The aliphatic PA resin can be 3 parts, 6 parts, 9 parts, 12 parts, 15 parts, 18 parts, 21 parts, 23 parts, 25 parts, 28 parts, etc., or an interval range formed by any of the above values. Specifically, the dosage of the aliphatic PA resin is 10 - 30 parts.

[0017] Specifically, the mass fraction of the total amount of aromatic rings in the polyphenylene ether-polyamide composition can be 29.5%, 30%, 30.5%, 31%, 31.5%, 32%, 32.5%, 33%, 33.5%, 34%, 34.5%, 35%, 35.5%, 36%, 36.5%, 37%, 37.5%, 38%, 38.5%, 39%, 39.5%, etc., or an interval range formed by any of the above values, such as 29 - 35%, 30 - 36%, etc., and the present invention is not limited thereto. Specifically, the mass fraction of the total amount of aromatic rings in the polyphenylene ether-polyamide composition is 29.8 - 39.2%. More specifically, the mass fraction ratio of the aromatic rings of the PPE resin and the aromatic PA resin is calculated by the theoretical value of the molecular chain structure.

[0018] Preferably, the zinc-containing flame retardant is selected from one or more of zinc borate and zinc oxide.

[0019] Preferably, the phosphazene flame retardant is one or more of alkoxycyclotriphosphazene, aryloxycyclotriphosphazene, halogenated cyclotriphosphazene, polyaryloxyphosphazene. More specifically, the aryloxycyclotriphosphazene includes but is not limited to hexaphenoxycyclotriphosphazene, etc.; the alkoxycyclotriphosphazene includes but is not limited to hexalkoxycyclotriphosphazene, butenyloxycyclotriphosphazene, etc.; the halogenated cyclotriphosphazene includes but is not limited to hexachlorocyclotriphosphazene and its derivatives; the polyaryloxyphosphazene includes but is not limited to polyphenoxyphosphazene.

[0020] Preferably, the compatibilizer is one or more of maleic anhydride, fumaric anhydride, citric acid, unsaturated dicarboxylic acid. Further preferably, the compatibilizer is maleic anhydride. Under this preference, the polyphenylene ether-polyamide composition has more excellent impact strength.

[0021] Preferably, the toughening agent is selected from one or more of styrene-ethylene-butadiene-styrene block copolymer (SEBS), ethylene-octene copolymer (SOE), maleic anhydride grafted styrene-ethylene-butadiene-styrene block copolymer (MAH-g-SEBS).

[0022] Preferably, the intrinsic viscosity of the PPE resin is 0.35 - 0.45 dL / g. The test method for the intrinsic viscosity of the PPE resin is: determined by an Ubbelohde viscometer, the solvent is chloroform, the test temperature is 25 °C, and the viscosity of the test solution is 0.5 g / dL.

[0023] Preferably, the intrinsic viscosity of the aromatic PA resin is 1.5 - 3.0 dL / g. More specifically, the intrinsic viscosity of the aromatic PA resin is 2.1 - 2.3 dL / g. The test method for the intrinsic viscosity of the aromatic PA resin is: determined by an Ubbelohde viscometer, the solvent is sulfuric acid, the test temperature is 25 °C, and the viscosity of the test solution is 0.5 g / dL.

[0024] Preferably, the intrinsic viscosity of the aliphatic PA resin is 1.5 - 3.0 dL / g. The test method for the intrinsic viscosity of the aliphatic PA resin is: determined by an Ubbelohde viscometer, the solvent is sulfuric acid, the test temperature is 25 °C, and the viscosity of the test solution is 0.5 g / dL.

[0025] Preferably, the aromatic PA resin is selected from one or more of PA4T, PA6T, PA66 / 6T, PA6I / 6T, PA10T, PA12T.

[0026] Preferably, the aliphatic PA resin is selected from one or more of PA6, PA46, PA66, PA610, PA612.

[0027] Preferably, the polyphenylene ether-polyamide composition further comprises one or more of a lubricant, an antioxidant, and a colorant. More specifically, the lubricant includes but is not limited to polyethylene wax, zinc stearate, lithium stearate, etc. The antioxidant includes but is not limited to pentaerythritol tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] (antioxidant 1010), N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine (RINOX 1098), bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite (REVONOX 608), bis(2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite (PEP-36), etc. The colorant includes but is not limited to carbon black, titanium dioxide, zinc sulfide, titanium yellow, iron red, etc.

[0028] Furthermore, the present invention claims protection for a method for preparing a polyphenylene ether-polyamide composition, which comprises mixing a PPE resin, an aromatic PA resin, a zinc-containing flame retardant, a phosphazene flame retardant, a compatibilizer, and a toughening agent, and melt-extruding to obtain the polyphenylene ether-polyamide composition.

[0029] Preferably, extrusion is carried out using a twin-screw extruder, and the ratio of the length to the diameter of the twin-screw extruder is 40-56:1.

[0030] Preferably, the screw speed of the twin-screw extruder is 300-1000 rpm.

[0031] Preferably, the extrusion temperature is 250-280 °C.

[0032] Furthermore, the present invention claims protection for the application of a polyphenylene ether-polyamide composition in the fields of photovoltaics, energy storage, and new energy. More specifically, the polyphenylene ether-polyamide composition is suitable for preparing photovoltaic connectors, energy storage device housings, new energy vehicle electronic control boxes, etc., especially in situations with high requirements for flame retardancy, low-temperature toughness, and CTI performance.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] In the present invention, by combining a PPE resin and an aromatic PA resin and controlling the mass fraction of aromatic rings in the polyphenylene ether-polyamide composition, using a zinc-containing flame retardant as the main flame retardant and pairing it with an auxiliary phosphazene flame retardant, and using a low content of toughening agent, through the compatibilizing effect of the compatibilizer, the obtained polyphenylene ether-polyamide composition simultaneously has good low-temperature toughness and 0-level CTI while meeting the basic requirement of V-0 flame retardancy. Detailed implementation manners

[0035] The present invention is further described below in conjunction with the specification and specific examples, but the examples do not limit the present invention in any form. Unless otherwise specified, the reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the art.

[0036] The raw materials of the embodiments and comparative examples are as follows:

[0037] PPE resin 1, intrinsic viscosity 0.45 dL / g, benzene ring mass fraction 61.6%, PPE ZM045, Dalian Zhongmu Chemical Co., Ltd.

[0038] PPE resin 2, intrinsic viscosity 0.35 dL / g, benzene ring mass fraction 61.6%, PPE LXN035, Nantong Xingchen Synthetic Materials Co., Ltd.

[0039] Aromatic PA resin 1, PA66 / 6T, intrinsic viscosity 2.3 dL / g, aromatic ring mass fraction 8.2%, NPD-652, INVISTA Nylon Chemical (China) Co., Ltd.

[0040] Aromatic PA resin 2, PA12T, intrinsic viscosity 2.2dL / g, aromatic ring mass fraction 23%, Henan Junheng Physical Group.

[0041] Aromatic PA resin 3, PA10T, intrinsic viscosity 2.1 dL / g, aromatic ring mass fraction 25.2%, Vicnyl600PNC013, Zhuhai Wantong Special Engineering Plastics Co., Ltd.

[0042] Aliphatic PA resin, PA66, intrinsic viscosity 2.4dL / g, PA66 U3600 NC01 SS, INVISTA Nylon Chemical (China) Co., Ltd.

[0043] Zinc-containing flame retardant 1, zinc borate, ZB-503, paper-plastic bag Anhui Yishitong Material Technology Co., Ltd.

[0044] Zinc flame retardant 2, zinc oxide, BAO-05, Xinyuan Chemical Co., Ltd.

[0045] Phosphazene flame retardant 1, Hexaphenoxycyclotriphosphazene, HPCTP, Hongda Dante Chemical Co., Ltd.

[0046] Phosphazene flame retardant 2, polyphenoxyphosphazene, SPB-100, Otsuka Chemical Co., Ltd.

[0047] Other flame retardants 1, triphenyl phosphate, WSFR-TPP, Zhejiang Wansheng Technology Co., Ltd.

[0048] Other flame retardants 2, magnesium hydroxide, Aitemag 12FD, Jiangsu Aitek Flame Retardant Materials Co., Ltd.

[0049] Compatibilizer 1, maleic anhydride, Shenyang Ketong Plastic Co., Ltd.

[0050] Compatibilizer 2, citric acid, Jinan Century Tongda Chemical Co., Ltd.

[0051] Toughening agent, SEBS, SEBS 6151, Taixiang Co., Ltd.

[0052] Unless otherwise specified, the components selected in each parallel example and comparative example are the same commercially available products.

[0053] Example 1

[0054] The weight parts of the raw materials used in Example 1 are shown in Table 1.

[0055] A preparation method of a polyphenylene ether - polyamide composition, the specific steps include:

[0056] Add each component into a high - speed mixer and mix evenly, then add it into a twin - screw extruder (length - diameter ratio is 56:1, rotation speed is 600 rpm), melt - extrude (temperature 280 °C), and pelletize to obtain the polyphenylene ether - polyamide composition.

[0057] Examples 2 - 11

[0058] The weight parts of the raw materials used in the following examples are shown in Table 1.

[0059] The specific preparation steps of the following examples are the same as those of Example 1.

[0060] Comparative Examples 1 - 11

[0061] The weight parts of the raw materials used in the following comparative examples are shown in Table 2.

[0062] The specific preparation steps of the other comparative examples are the same as those of Example 1.

[0063] Table 1

[0064]

[0065]

[0066] Note: In Table 1 and Table 2, the aromatic ring proportion refers to the mass fraction of benzene rings in the polyphenylene ether - polyamide composition

[0067] Table 2 shows the formulation components of each comparative example:

[0068] Table 2

[0069]

[0070] The polyphenylene ether-polyamide compositions prepared in the above examples and comparative examples were tested using the following test methods.

[0071] (1) Izod notched impact strength: Tested in accordance with ISO 180-2023.

[0072] (2) Low-temperature impact performance: Test the low-temperature falling ball performance. The test temperature is -40 °C. The sample size is a 100*100*2 mm square plate. A 1 kg heavy iron ball is dropped from a height of 1 m to test whether the sample cracks. If the sample cracks, it fails; if the sample does not crack, it passes.

[0073] (3) Flame retardancy: Tested in accordance with the UL 94 standard. Prepare a 0.75 mm thick specimen for vertical burning test.

[0074] (4) CTI: Tested in accordance with the IEC 60112-2020 standard. Among them, passing the test at 600 V indicates reaching level 0, and no higher voltage tests will be carried out subsequently.

[0075] (5) Heat distortion temperature: Tested in accordance with ISO 75-1:2020 standard. The heating rate is 2 °C / min, and the load is 0.45 MPa.

[0076] Tables 3, 4, and 5 respectively show the performance test results of each example and comparative example.

[0077] Table 3

[0078]

[0079] Table 4

[0080] Test Items Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 <![CDATA[Izod impact strength / kJ·m -2 > 6.8 13.4 11.6 13.2 11.8 10.9 Low Temperature Impact Performance Failed Passed Passed Passed Passed Passed Flame Retardant Performance V-0 V-1 Non - flame - retardant V-1 Non - flame - retardant Non - flame - retardant CTI 450V 600V 600V 425V 600V 600V Heat Deflection Temperature / °C 184 175 185 186 186 177

[0081] Table 5

[0082] Test Items Comparative Example 7 Comparative Example 8 Comparative Example 9 Comparative Example 10 Comparative Example 11 <![CDATA[Izod impact strength / kJ·m -2 > 12.2 13.5 16.5 14.1 3.1 Low Temperature Impact Performance Passed Passed Passed Passed Failed Flame Retardant Performance V-0 V-1 V-1 V-1 V-0 CTI 425V 600V 600V 600V 600V Heat Deflection Temperature / °C 184 172 168 173 166

[0083] As can be seen from the above Tables 3, 4, and 5, the present invention combines PPE resin and aromatic PA resin, controls the mass fraction of aromatic rings in the polyphenylene ether-polyamide composition, uses a zinc-containing flame retardant in combination with a phosphazene flame retardant, and adopts a low content of toughening agent. Through the compatibilizing effect of the compatibilizer, the prepared polyphenylene ether-polyamide composition has good low-temperature toughness, 0-level CTI, and excellent heat distortion temperature (≥180 °C) while meeting the basic requirements of V-0 flame retardancy.

[0084] As can be seen from Example 9, Example 10, Comparative Example 1 and Comparative Example 2, when the mass fraction of the total amount of aromatic rings in the polyphenylene ether-polyamide composition is within a specific range, the technical effects of the present invention can be achieved. When the mass fraction of the total amount of aromatic rings is too high, the prepared polyphenylene ether-polyamide composition will crack in the low-temperature impact performance test, and the CTI of Comparative Example 1 is only 450 V; when the mass fraction of the total amount of aromatic rings is too low, although the prepared polyphenylene ether-polyamide composition can pass the low-temperature impact performance test, it cannot achieve the flame-retardant effect and is difficult to achieve excellent heat distortion temperature.

[0085] As can be seen from Example 1 and Example 11, when the compatibilizer is maleic anhydride, the prepared polyphenylene ether-polyamide composition has more excellent impact strength.

[0086] As can be seen from Example 1, Comparative Example 3 to Comparative Example 7, when only a zinc-containing flame retardant is used, or only a phosphazene flame retardant is used, or a zinc-containing flame retardant, a phosphazene flame retardant and other types of flame retardants are combined, it is difficult to achieve the technical effects of the present invention.

[0087] As can be seen from Example 1 and Comparative Example 8, in the present invention, it is necessary to use a combination of PPE resin and aromatic PA resin and simultaneously control the mass fraction of the total amount of aromatic rings to achieve the technical effects of the present invention. When only a combination of PPE resin and aliphatic PA resin is used, the flame-retardant effect of a 0.75 mm thick sample is only V-1, and the heat distortion temperature is low.

[0088] As can be seen from Example 1 and Comparative Example 9, even if the total amount of aromatic rings is controlled within a specific range, when the addition amount of the toughening agent is high, the heat distortion temperature of the prepared polyphenylene ether-polyamide composition is low and the flame-retardant performance does not meet the standard. As can be seen from Example 1 and Comparative Example 10, when there is too much aromatic PA in the system, the flame-retardant effect of a 0.75 mm thick sample is only V-1, and the heat distortion temperature is low.

[0089] As can be seen from Example 1 and Comparative Example 11, when the system does not contain a compatibilizer, the impact strength of the prepared polyphenylene ether-polyamide composition is low, it cannot pass the low-temperature impact performance test, and the heat distortion temperature is low.

[0090] The foregoing examples are merely illustrative and are used to explain some features of the method described in the present invention. The appended claims are intended to claim the broadest scope conceivable, and the examples presented herein are supported by the applicant's actual test results. Therefore, the applicant's intention is that the appended claims should not be limited by the selection of examples that illustrate the features of the present invention. Some of the numerical ranges used in the claims also include sub-ranges within them, and variations within these ranges should also be construed as being covered by the appended claims whenever possible.

Claims

1. A polyphenylene ether-polyamide composition, characterized in that: By weight, it includes the following components: PPE resin 34.5-51 parts, aromatic PA resin 9-46 parts, aliphatic PA resin 0-31 parts, zinc-containing flame retardant 6-12 parts, phosphazene flame retardant 2-4 parts, compatibilizer 0.2-1 parts, toughening agent 2-5 parts; The mass fraction of the total amount of aromatic rings in the polyphenylene ether-polyamide composition is 29-40%.

2. The polyphenylene ether-polyamide composition according to claim 1, characterized in that: The zinc-containing flame retardant is selected from one or more of zinc borate and zinc oxide.

3. The polyphenylene ether-polyamide composition according to claim 1, characterized in that: The phosphazene flame retardant is one or more of alkoxy cyclotriphosphazene, aryloxy cyclotriphosphazene, halogenated cyclotriphosphazene and polyaryloxy phosphazene.

4. The polyphenylene ether-polyamide composition according to claim 1, characterized in that: The compatibilizer is one or more of maleic anhydride, fumaric anhydride, citric acid, and unsaturated dicarboxylic acid.

5. The polyphenylene ether-polyamide composition according to claim 1, characterized in that: The toughening agent is selected from one or more of styrene-ethylene-butadiene-styrene block copolymer, ethylene-octene copolymer, maleic anhydride grafted styrene-ethylene-butadiene-styrene block copolymer.

6. The polyphenylene ether-polyamide composition according to claim 1, characterized in that: The mass fraction of the total amount of aromatic rings in the polyphenylene ether-polyamide composition is 29.8-39.2%.

7. The polyphenylene ether-polyamide composition according to claim 1, characterized in that: The intrinsic viscosity of the aromatic PA resin is 1.5-3.0 dL / g; and / or the intrinsic viscosity of the aliphatic PA resin is 1.5-3.0 dL / g.

8. The polyphenylene ether-polyamide composition according to claim 1, characterized in that: The aromatic PA resin is selected from one or more of PA4T, PA6T, PA66 / 6T, PA6I / 6T, PA10T, and PA12T; And / or the aliphatic PA resin is selected from one or more of PA6, PA46, PA66, PA610, and PA612.

9. The method for preparing the polyphenylene ether-polyamide composition according to any one of claims 1 to 8, characterized in that: The polyphenylene ether-polyamide composition is obtained by mixing PPE resin, aromatic PA resin, zinc-containing flame retardant, phosphazene flame retardant, compatibilizer and toughening agent, and then melt-extruded.

10. Application of the polyphenylene ether-polyamide composition according to any one of claims 1 to 8 in the photovoltaic field, energy storage field and new energy field.

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