PPO alloy material, preparation method thereof and PPO alloy product

By mixing PPO with PPS, compatibility agent, processing aid and wear resistance aid in a specific proportion, a PPO alloy material with good wear resistance is prepared, which solves the problem of insufficient wear resistance of traditional PPO alloys and realizes the Higher impact strength and wear resistance.

CN119463455APending Publication Date: 2025-02-18JIANGSU WOTE ADVANCED MATERIALS CO LTD
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Patent Information

Application Number
CN202411928584.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-02-18

AI Technical Summary

Technical Problem

Traditional PPO alloys have poor wear resistance and are difficult to meet certain high-demand application scenarios.

Method used

A new PPO alloy material is prepared by mixing PPO with PPS, compatibility agents, processing aids and wear-resistant additives, and controlling the specific types and proportions of processing aids. The material includes 30~50 parts of PPO, 30~40 parts of PPS, 3~10 parts of compatible agent, 1~3 parts of processing aids and 1~10 parts of wear-resistant aids. The processing aids include four [β-(3) ,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester, bis(2,4-daclphenyl)pentaerythritol diphosphite and pentaerythritol dodethiopropyl ester.

Benefits of technology

On the basis of ensuring tensile strength, it effectively improves impact strength and wear resistance, and at the same time has good molding and machining properties, which are suitable for various electronic and electrical and vehicle equipment components.

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Abstract

The invention relates to a PPO alloy material, a preparation method thereof and a PPO alloy product. The PPO alloy material comprises the following components in parts by weight: 30-50 parts of PPO, 30-40 parts of PPS, 3-10 parts of a compatilizer, 1-3 parts of a processing aid and 1-10 parts of a wear-resistant aid, the processing aid is prepared from at least two of tetrakis [beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, bis (2, 4-dicumyl phenyl) pentaerythritol diphosphite and pentaerythritol dodecylthiopropyl ester, and the processing aid is prepared from at least two of tetrakis [beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, bis (2, 4-dicumyl phenyl) pentaerythritol diphosphite and pentaerythritol dodecylthiopropyl ester. The PPO, the PPS, the compatilizer, the processing aid and the wear-resistant aid are mixed, the specific types of the processing aid are controlled, and the components act according to a specific proportion, so that the impact strength and the wear resistance are effectively improved on the basis of ensuring the tensile strength, and the molding processability is relatively good.
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Description

Technical Field

[0001] The present application relates to the field of material technology, and in particular to a PPO alloy material and a preparation method thereof, and a PPO alloy product. Background Art

[0002] PPO (polyphenylene ether) is a high-performance thermoplastic engineering plastic. Its chemical name is poly 2,6-dimethyl-1,4-phenylene ether. It is usually white particles and non-toxic. The main chain of the molecule contains a large number of aromatic ring structures, which makes PPO have high strength, modulus and thermal stability. At the same time, it has electrical insulation properties. It is widely used in industries and fields such as automobiles, electronics, electrical appliances, and IT. Due to the poor melt fluidity of PPO, it is usually blended with other plastics to form engineering plastic alloys (called MPPO). However, the wear resistance of traditional PPO alloys is poor.

[0003] Therefore, it is necessary to improve the traditional technology. Summary of the invention

[0004] Based on this, the present application provides a PPO alloy material with good wear resistance, a preparation method thereof, and a PPO alloy product.

[0005] The technical solution of this application to solve the above technical problems is as follows.

[0006] On the one hand, the present application provides a PPO alloy material, which comprises the following components by weight:

[0007] 30-50 parts of PPO, 30-40 parts of PPS, 3-10 parts of a compatibilizer, 1-3 parts of a processing aid and 1-10 parts of a wear-resistant aid; the processing aid comprises at least two of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol, bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

[0008] In some of the embodiments, in the PPO alloy material, the mass ratio of the PPS to the PPO is 0.6-1.3:1.

[0009] In some of the embodiments, the PPO alloy material includes the following components, by weight: 30-40 parts of PPO, 35-40 parts of PPS, 3-5 parts of a compatibilizer, 1-3 parts of a processing aid, and 1-5 parts of a wear-resistant additive.

[0010] In some of the embodiments, in the PPO alloy material, the processing aid includes pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

[0011] In some embodiments, in the PPO alloy material, the processing aid includes, by weight, 1 to 3 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 1 to 3 parts of bis(2,4-dicumylphenyl)pentaerythritol diphosphite and 1 to 3 parts of pentaerythritol dodecathiopropyl ester.

[0012] In some of the embodiments, in the PPO alloy material, the wear-resistant agent includes at least one of PTFE micropowder, molybdenum disulfide, talc, calcium carbonate and wollastonite.

[0013] In some of the embodiments, in the PPO alloy material, the compatibilizer includes at least one of POE-g-MAH, SEBS-g-MA, PPO-g-GMA, SBS-g-MAH, PMMA-g-MAH and ABS-g-MAH.

[0014] On the one hand, the present application provides a method for preparing a PPO alloy material, comprising the following steps:

[0015] By weight, 30-50 parts of PPO, 30-40 parts of PPS, 3-10 parts of a compatibilizer, 1-3 parts of a processing aid and 1-10 parts of a wear-resistant aid are uniformly mixed and extruded; the processing aid comprises at least two of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester, bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

[0016] In some of the embodiments, in the method for preparing the PPO alloy material, the extrusion molding temperature is 260°C to 300°C.

[0017] On one hand, the present application provides a PPO alloy product, including the above-mentioned PPO alloy material or the PPO alloy material prepared by the above-mentioned preparation method.

[0018] Compared with the prior art, the PPO alloy material of the present application has the following beneficial effects:

[0019] The PPO alloy material of the present application mixes PPO with PPS, a compatibilizer, a processing aid and a wear-resistant aid, and controls the specific type of the processing aid. Each component acts in a specific proportion. On the basis of ensuring the tensile strength, the impact strength and wear resistance are effectively improved, and the molding processability is good. DETAILED DESCRIPTION

[0020] The present application will be further described in detail below in conjunction with the embodiments and examples. It should be understood that these embodiments and examples are only used to illustrate the present application and are not used to limit the scope of the present application. The purpose of providing these embodiments and examples is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0021] It should also be understood that the present application can be implemented in many different forms and is not limited to the embodiments and examples described herein. Those skilled in the art can make various changes or modifications without violating the connotation of the present application, and the equivalent forms obtained also fall within the scope of protection of the present application. For example, the features illustrated or described as part of one embodiment can be combined in another embodiment in a suitable manner to produce a new embodiment. In addition, in the description below, a large number of specific details are given in order to provide a more comprehensive understanding of the present application. It should be understood that the present application can be implemented without one or more of these details.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing implementation modes and embodiments and are not intended to limit this application.

[0023] Unless otherwise specified or incompatible herewith, the terms and phrases used herein shall have the following meanings:

[0024] In the present application, "plurality", "multiple", "multiple times", etc., unless otherwise specified, refer to a number greater than 2 or equal to 2. For example, "one or more" means one or greater than or equal to two.

[0025] As used herein, "combination thereof", "any combination thereof", "any combination thereof" etc. include all suitable combinations of any two or more of the listed items.

[0026] Herein, the “suitable” mentioned in “suitable combination”, “suitable method”, “any suitable method”, etc., shall be based on the ability to implement the technical solution of this application, solve the technical problems of this application, and achieve the expected technical effects of this application.

[0027] Herein, "preferred", "better", "more preferred", and "suitable" are only used to describe implementation methods or examples with better effects, and it should be understood that they do not constitute a limitation on the scope of protection of this application. If multiple "preferred" items appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "preferred" item is independent.

[0028] In the present application, "further", "further", "particularly" and the like are used for descriptive purposes to indicate differences in content, but should not be construed as limiting the scope of protection of the present application.

[0029] In this application, "optionally", "optional", and "optional" mean optional or dispensable, that is, any one of the two parallel schemes of "yes" or "no". If multiple "options" appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "optional" is independent.

[0030] In the present application, the terms "first", "second", "third", "fourth", etc. in "the first aspect", "the second aspect", "the third aspect", "the fourth aspect", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or quantity, nor can they be understood as implicitly indicating the importance or quantity of the indicated technical features. Moreover, "first", "second", "third", "fourth", etc. only serve the purpose of non-exhaustive enumeration and description, and it should be understood that they do not constitute a closed limitation on quantity.

[0031] In the present application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0032] In the present application, when it comes to a numerical interval (i.e., a numerical range), unless otherwise specified, the distribution of the optional numerical values ​​in the numerical interval is considered to be continuous, and includes the two numerical endpoints (i.e., the minimum value and the maximum value) of the numerical interval, and each numerical value between the two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to the integers in the numerical interval, it includes the two endpoint integers of the numerical range, and each integer between the two endpoints, which is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be combined. In other words, unless otherwise specified, the numerical range disclosed herein should be understood to include any and all sub-ranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. "Numerical interval" allows broadly including numerical interval types such as percentage intervals, ratio intervals, and ratio intervals.

[0033] The temperature parameters in this application, unless otherwise specified, are allowed to be either constant temperature treatment or to vary within a certain temperature range. It should be understood that the constant temperature treatment allows the temperature to fluctuate within the accuracy range controlled by the instrument. Fluctuations within the range of ±5°C, ±4°C, ±3°C, ±2°C, and ±1°C are allowed.

[0034] In this application, the term "room temperature" or "normal temperature" generally refers to 4°C to 35°C, for example, 20°C ± 5°C. In some embodiments of this application, "room temperature" or "normal temperature" refers to 10°C to 30°C. In some embodiments of this application, "room temperature" or "normal temperature" refers to 20°C to 30°C.

[0035] In this application, when referring to the unit of a data range, if there is a unit only after the right endpoint, it means that the units of the left and right endpoints are the same. For example, 3~5 h means that the units of the left endpoint "3" and the right endpoint "5" are both h (hours).

[0036] All documents mentioned in this application are cited as references in this application, just as each document is cited as reference separately. Unless they conflict with the invention purpose and / or technical solution of this application, the cited documents involved in this application are cited with all contents and all purposes. When the cited documents are involved in this application, the definitions of relevant technical features, terms, nouns, phrases, etc. in the cited documents are also cited. When the cited documents are involved in this application, the examples and preferred methods of the cited relevant technical features can also be incorporated into this application as references, but are limited to the implementation of this application. It should be understood that when the cited content conflicts with the description in this application, the present application shall prevail or be modified adaptively according to the description of this application.

[0037] The mass or weight of the relevant components mentioned in the specification of the embodiments of the present application may not only refer to the specific content of each component, but also indicate the proportional relationship of the mass or weight between the components. Therefore, as long as the content of the relevant components is proportionally enlarged or reduced according to the specification of the embodiments of the present application, it is within the scope disclosed in the specification of the embodiments of the present application. Specifically, the mass or weight described in the specification of the embodiments of the present application may be units known in the chemical industry such as μg, mg, g, and kg.

[0038] An embodiment of the present application provides a PPO alloy material, which comprises the following components in parts by weight:

[0039] 30-50 parts of PPO, 30-40 parts of PPS, 3-10 parts of a compatibilizer, 1-3 parts of a processing aid and 1-10 parts of a wear-resistant aid; the processing aid comprises at least two of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol, bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

[0040] The PPO alloy material of the present application mixes PPO with PPS, a compatibilizer, a processing aid and a wear-resistant aid, and controls the specific type of the processing aid. Each component acts in a specific proportion. On the basis of ensuring the tensile strength, the impact strength and wear resistance are effectively improved, and the molding processability is good.

[0041] PPS (polyphenylene sulfide), full name polyphenylene sulfide, is a thermoplastic resin with phenylthio groups in the main chain of the molecule. Polyphenylene sulfide is a crystalline polymer. Its unstretched fiber has a large amorphous region (crystallinity is about 5%), crystallization exothermic occurs at 125°C, the glass transition temperature is 150°C, and the melting point is 281°C. PPS is a special engineering plastic with excellent comprehensive performance, with excellent high temperature resistance, corrosion resistance, radiation resistance, flame retardancy, balanced physical and mechanical properties, excellent dimensional stability and excellent electrical properties.

[0042] Pentaerythritol tetrakys 3-(3,5-ditert-butyl-4-hydroxyphenyl)propionate, CAS No.: 6683-19-8, English name: [pentaerythritol tetrakys 3-(3,5-ditert-butyl-4-hydroxyphenyl )propionate].

[0043] Bis(2,4-dicumylphenyl)pentaerythritol diphosphite, CAS No.: 154862-43-8, English name: Bis[2,4-bis(1-methyl-1-phenylethyl)phenyl] pentaerythritol diphosphite.

[0044] Pentaerythritol dodecathiopropyl ester, CAS number: 85-60-9, English name: 4,4'-Butylidenebis (6-tert-butyl-3-methylphenol).

[0045] It can be understood that in the PPO alloy material, the weight parts of PPO include but are not limited to 30 parts, 32 parts, 35 parts, 38 parts, 40 parts, 42 parts, 45 parts, 48 ​​parts, and 50 parts; the weight parts of PPS include but are not limited to 30 parts, 32 parts, 35 parts, 38 parts, and 40 parts; the weight parts of compatibilizers include but are not limited to 3 parts, 4 parts, 5 parts, 6 parts, 8 parts, and 10 parts; the weight parts of processing aids include but are not limited to 1 part, 2 parts, and 3 parts; the weight parts of wear-resistant additives include but are not limited to 1 part, 3 parts, 4 parts, 5 parts, 6 parts, 8 parts, and 10 parts; in some examples, any two of these point values ​​can be within the range formed by the end values, the same below.

[0046] In some of the examples, in the PPO alloy material, the mass ratio of PPS to PPO is 0.6~1.3:1.

[0047] It can be understood that in the PPO alloy material, the mass ratio of PPS to PPO includes but is not limited to 0.6:1, 0.7:1, 0.8:1, 0.9:1, 1:1, 1.1:1, 1.2:1, and 1.3:1.

[0048] In some of the examples, in the PPO alloy material, the mass ratio of PPS to PPO is 0.8~1.3:1.

[0049] Optionally, the mass ratio of PPS to PPO is 1-1.3:1.

[0050] In some of the examples, the PPO alloy material includes the following components, by weight: 30-40 parts of PPO, 35-40 parts of PPS, 3-5 parts of a compatibilizer, 1-3 parts of a processing aid, and 1-5 parts of a wear-resistant additive.

[0051] In some of the examples, in the PPO alloy material, the processing aids include pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

[0052] In some of the examples, in the PPO alloy material, the processing aids include, by weight: 1 to 3 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 1 to 3 parts of bis(2,4-dicumylphenyl)pentaerythritol diphosphite and 1 to 3 parts of pentaerythritol dodecathiopropyl ester.

[0053] It can be understood that in the PPO alloy material, the weight parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate include but are not limited to 1 part, 2 parts, and 3 parts; the weight parts of bis(2,4-dicumylphenyl)pentaerythritol diphosphite include but are not limited to 1 part, 2 parts, and 3 parts; the weight parts of pentaerythritol dodecathiopropyl include but are not limited to 1 part, 2 parts, and 3 parts.

[0054] It can be understood that the processing aid can be prepared by mixing and stirring tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester, bis(2,4-dicumylphenyl)pentaerythritol diphosphite and bis(2,4-dicumylphenyl)pentaerythritol diphosphite uniformly.

[0055] In some of the examples, in the PPO alloy material, the wear-resistant agent includes at least one of PTFE micropowder, molybdenum disulfide, talc, calcium carbonate and wollastonite.

[0056] In some of the examples, in the PPO alloy material, the compatibilizer includes at least one of POE-g-MAH, SEBS-g-MA, PPO-g-GMA, SBS-g-MAH, PMMA-g-MAH and ABS-g-MAH.

[0057] It is understandable that the PPO alloy material of the present application may also be added with other additives commonly used in the art, such as at least one of a toughening agent, an antistatic agent, and an antibacterial agent.

[0058] The PPO alloy material of the present application has good comprehensive mechanical properties, heat resistance and wear resistance, and has excellent forming and processing properties, and is suitable for various electronic and electrical and vehicle equipment parts.

[0059] An embodiment of the present application provides a method for preparing a PPO alloy material, comprising the following steps:

[0060] By weight, 30-50 parts of PPO, 30-40 parts of PPS, 3-10 parts of a compatibilizer, 1-3 parts of a processing aid and 1-10 parts of a wear-resistant additive are uniformly mixed and extruded; the processing aid comprises at least two of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester, bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

[0061] In some of the examples, in the method for preparing the PPO alloy material, the extrusion molding temperature is 260°C~300°C.

[0062] It is understood that the extrusion molding temperature includes but is not limited to 260°C, 270°C, 280°C, 290°C, and 300°C.

[0063] In some of the examples, in the preparation method of the PPO alloy material, PPO, PPS, compatibilizer, processing aid and wear-resistant aid are placed in a high-speed mixer and mixed evenly. Further, the speed of the high-speed mixer is 300-700 rpm; further, the feed rate is 400-600 kg / h; further, the vacuum degree is 0.06-0.08 Mpa.

[0064] In some of the examples, in the method for preparing the PPO alloy material, a screw extruder is used for extrusion molding.

[0065] One embodiment of the present application provides the use of the above PPO alloy material or the PPO alloy material prepared by the above preparation method in preparing a PPO alloy product. Another embodiment of the present application provides a PPO alloy product, comprising the above PPO alloy material or the PPO alloy material prepared by the above preparation method.

[0066] The PPO alloy material or the PPO alloy material prepared by the above preparation method is used to prepare PPO alloy products, which can give the PPO alloy products higher impact strength and wear resistance.

[0067] It is understood that PPO alloy products include but are not limited to electronic and electrical and vehicle equipment parts.

[0068] The present application is further described in detail below in conjunction with specific implementation methods, but the implementation methods of the present application are not limited thereto.

[0069] In the following examples and comparative examples, the PPS resin is Celanese's 1200L1, and the PPO resin is Asahi Kasei's S201.

[0070] Example 1

[0071] PPO, PPS, compatibilizer and processing aid are uniformly mixed in a high-speed mixer according to weight proportions, the speed is set to 400 rpm, and mixed at room temperature (22°C~25°C) for 5min~10min; then taken out and transferred to a screw extruder, extruded and granulated at 260°C~300°C to obtain a PPO alloy material.

[0072] Among them, by weight, there are 40 parts of PPO, 40 parts of PPS, 3 parts of compatibilizer, 1 part of processing aid and 2 parts of wear-resistant additive; the mass ratio of PPS to the PPO is 1:1; wherein the processing aid includes: 0.3 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 0.3 parts of bis(2,4-dicumylphenyl)pentaerythritol diphosphite and 0.4 parts of pentaerythritol dodecathiopropyl ester; wherein the compatibilizer is SEBS-g-MAH; wherein the wear-resistant additive is PTFE micropowder.

[0073] Example 2

[0074] It is basically the same as Example 1, except that the compatibilizer SEBS-g-MAH in Example 1 is replaced by an equal weight of PPO-g-GMA, and the wear-resistant additive PTFE powder in Example 1 is replaced by an equal weight of molybdenum disulfide.

[0075] Example 3

[0076] The method is basically the same as Example 1, except that the wear-resistant additive PTFE powder in Example 1 is replaced by talcum powder of the same weight.

[0077] Example 4

[0078] The method is basically the same as Example 1, except that the wear-resistant additive PTFE powder in Example 1 is replaced by an equal weight of barium sulfate.

[0079] Example 5

[0080] The method is basically the same as Example 1, except that the weight fractions of the components are different, as follows:

[0081] In parts by weight, the ingredients include 50 parts of PPO, 30 parts of PPS, 3 parts of compatibilizer, 1 part of processing aid and 2 parts of wear-resistant additive; the mass ratio of PPS to the PPO is 0.6:1.

[0082] Example 6

[0083] The method is basically the same as Example 1, except that the weight fractions of the components are different, as follows:

[0084] In parts by weight, the ingredients include 30 parts of PPO, 40 parts of PPS, 3 parts of compatibilizer, 1 part of processing aid and 2 parts of wear-resistant additive; the mass ratio of PPS to the PPO is 1.3:1.

[0085] Example 7

[0086] The method is basically the same as Example 1, except that the compatibilizer SEBS-g-MAH in Example 1 is replaced by an ethylene-methyl acrylate copolymer of equal mass.

[0087] Comparative Example 1

[0088] It is basically the same as Example 1, except that the wear-resistant additive PTFE powder is omitted and the PPO resin is 42 parts.

[0089] Comparative Example 2

[0090] The method is basically the same as Example 1, except that the processing aid is 1 part of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate.

[0091] The raw materials of the PPO alloy materials prepared in various embodiments and comparative examples are shown in Table 1.

[0092] Table 1

[0093]

[0094] The impact strength was tested according to the impact test standard GB / T1043.2-2019, the tensile strength was tested according to the tensile strength standard GB / T1040.2-2006, and the wear loss was tested according to the relevant standards of GB / T 3960 (100°C, 700h). The results are shown in Table 2.

[0095] Table 2

[0096]

[0097] It can be seen from Table 2 that, compared with the comparative example, the PPO alloy material of each embodiment has better impact strength and wear resistance, while the tensile strength is not affected.

[0098] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0099] The above-described embodiments only express several implementation methods of the present application, which is convenient for understanding the technical solution of the present application in detail, but it cannot be understood as limiting the scope of protection of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the scope of protection of the present application. It should be understood that the technical solutions obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the technical solutions provided in the present application are all within the scope of protection of the claims attached to the present application. Therefore, the scope of protection of the patent of this application shall be based on the content of the attached claims, and the description can be used to interpret the content of the claims.

Claims

1. A PPO alloy material, characterized in that: By weight, it includes the following components: 30-50 parts of PPO, 30-40 parts of PPS, 3-10 parts of a compatibilizer, 1-3 parts of a processing aid and 1-10 parts of a wear-resistant aid; the processing aid comprises at least two of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol, bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

2. The PPO alloy material according to claim 1, characterized in that: The mass ratio of the PPS to the PPO is 0.6-1.3:

1.

3. The PPO alloy material according to claim 1, characterized in that: The PPO alloy material comprises the following components by weight: 30-40 parts of PPO, 35-40 parts of PPS, 3-5 parts of a compatibilizer, 1-3 parts of a processing aid and 1-5 parts of a wear-resistant aid.

4. The PPO alloy material according to any one of claims 1 to 3, characterized in that: The processing aids include pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

5. The PPO alloy material according to claim 4, characterized in that: In the PPO alloy material, the processing aid includes, by weight: 1 to 3 parts of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 1 to 3 parts of bis(2,4-dicumylphenyl)pentaerythritol diphosphite and 1 to 3 parts of pentaerythritol dodecathiopropyl ester.

6. The PPO alloy material according to any one of claims 1 to 3 and 5, characterized in that: The wear-resistant agent includes at least one of PTFE micropowder, molybdenum disulfide, talc, calcium carbonate and wollastonite.

7. The PPO alloy material according to any one of claims 1 to 3 and 5, characterized in that: The compatibilizer includes at least one of POE-g-MAH, SEBS-g-MA, PPO-g-GMA, SBS-g-MAH, PMMA-g-MAH and ABS-g-MAH.

8. A method for preparing a PPO alloy material, characterized in that: The following steps are involved: By weight, 30-50 parts of PPO, 30-40 parts of PPS, 3-10 parts of a compatibilizer, 1-3 parts of a processing aid and 1-10 parts of a wear-resistant aid are uniformly mixed and extruded; the processing aid comprises at least two of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester, bis(2,4-dicumylphenyl)pentaerythritol diphosphite and pentaerythritol dodecathiopropyl ester.

9. The method for preparing the PPO alloy material according to claim 8, characterized in that: The extrusion molding temperature is 260°C to 300°C.

10. A PPO alloy product, characterized in that: It includes the PPO alloy material as described in any one of claims 1 to 8 or the PPO alloy material prepared by the preparation method as described in any one of claims 8 to 9.