CN109354872B - Composite material for electrical appliance element and preparation method and application thereof - Google Patents
Composite material for electrical appliance element and preparation method and application thereof Download PDFInfo
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- CN109354872B CN109354872B CN201810952784.6A CN201810952784A CN109354872B CN 109354872 B CN109354872 B CN 109354872B CN 201810952784 A CN201810952784 A CN 201810952784A CN 109354872 B CN109354872 B CN 109354872B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a composite material for electrical elements, which comprises raw materials of conductive filler, polyphenylene sulfide, polyetherimide, polyphenylene sulfone and a copolymer, wherein the feeding mass ratio of the polyphenylene sulfide to the polyphenylene sulfone is 1-5: 0.5-2: 1, and the monomer of the copolymer must comprise styrene and maleic anhydride and also optionally comprises methacrylate and/or glycidyl methacrylate; the preparation method comprises the following steps: weighing the raw materials according to the formula ratio, drying the resin components in the raw materials, mixing the dried resin components with a copolymer, and then blending, melting, extruding, cooling and granulating the mixture with the rest raw materials to obtain the modified polycarbonate; and an electrical component made therefrom; the electric appliance element prepared by the material has the advantages of high service temperature of more than 200 ℃, good high-temperature dimensional stability, low resistivity, good thermal conductivity, long-term stable resistance value, corrosion resistance, radiation resistance, aging resistance and the like, and is particularly suitable for being used in special working condition environments.
Description
Technical Field
The invention belongs to the technical field of electric appliances, particularly relates to an electric appliance element, and particularly relates to a composite material for the electric appliance element and a preparation method and application thereof.
Background
Metal electrical components are easily corroded and oxidized by the environment in the using process, the service life is shortened, the equipment safety is influenced, and meanwhile, the metal electrical components are heavy in mass and not beneficial to the development direction of light weight. The conductive plastic electric appliance element has the characteristics of corrosion resistance, ageing resistance, radiation resistance, light weight, wear resistance, long service life and the like, and is gradually applied to products.
The conductive plastic products are various in types, most of the conductive plastic products are made of general engineering plastics and conductive fillers, however, the conductive plastic products can only be applied to the environment with low requirements, firstly, the use temperature is limited, and the use temperature cannot exceed 150 ℃; and the radiation resistance and hydrolysis resistance are lower. In some environments of high temperature, high pressure, radiation, abrasion and corrosion, electrical elements made of common engineering plastics cannot meet application requirements, but need conductive PEEK materials, conductive PAI materials and the like with good service performance, but the materials are expensive and limit the use.
Therefore, in order to solve the problems that the requirements on various properties of conductive materials are extremely high and the cost of purchasing the materials is high in the fields of high-end fields and plastic electronic and electrical parts in severe environments, such as military industry, aviation, nuclear power and the like, a material with excellent properties and low cost is sought, and a problem to be solved is needed.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to overcome the disadvantages of the prior art, and to provide an improved composite material for electrical components, which can be used to prepare electrical components with a service temperature of more than 200 ℃, good dimensional stability at high temperature,Is low in Resistivity ofThe high-temperature-resistant and high-voltage-resistant alloy has the advantages of good heat conductivity, long-term stable resistance value, corrosion resistance, radiation resistance, aging resistance and the like, and is particularly suitable for being used in a working condition environment with high requirements.
The invention also provides a preparation method of the composite material for the electrical appliance element.
The invention also provides the application of the composite material for the electrical element in the production of the electrical element.
In order to solve the technical problems, the invention adopts a technical scheme as follows:
a composite material for electrical components, the raw material of the composite material comprises a resin component and a conductive filler, the resin component is composed of polyphenylene sulfide, polyetherimide and polyphenylene sulfone, the mass ratio of the polyphenylene sulfide to the polyetherimide to the polyphenylene sulfone is 1-5: 0.5-2: 1, the raw material also comprises a copolymer, the monomer of the copolymer necessarily comprises styrene and maleic anhydride, and also optionally comprises methacrylate and/or glycidyl methacrylate.
According to a particular and preferred aspect of the invention, the monomers of the copolymeric polymer include styrene, maleic anhydride, methacrylate and glycidyl methacrylate.
According to a particular and preferred aspect of the invention, said co-polymer is a compatibilizer SME098 of passter new materials science and technology ltd, shenzhen.
According to some preferred aspects of the present invention, the charged mass ratio of the co-polymer to the total charged mass ratio of the polyphenylene sulfide, the polyetherimide and the polyphenylene sulfone is 1: 40-60.
According to some preferred aspects of the present invention, the raw material further comprises 0.02 to 0.15 parts by mass of an antioxidant.
According to some specific and preferred aspects of the invention, the antioxidant is CYANOX 1790 from cyanothece.
According to some preferred aspects of the present invention, the raw material further comprises 0.5 to 10 parts by mass of a lubricant.
According to some specific and preferred aspects of the invention, the lubricant is a silicone masterbatch.
According to some preferred aspects of the present invention, the raw material further comprises 5 to 40 parts by mass of stainless steel fibers.
According to some specific aspects of the invention, the conductive filler is graphene.
According to a specific and preferred aspect of the present invention, in the raw materials, by mass:
preferably, the raw materials comprise the following components in parts by mass:
according to the invention, the polyphenylene sulfide (PPS) is purchased from chongqing po new technology materials ltd, product type: GL 04; the Polyetherimide (PEI) is purchased from a company selected from SABIC, product model: 1000-; the polyphenylene sulfone (PPSU) is available from SOLVAY corporation under the product model number: r-5800.
The invention provides another technical scheme that: a preparation method of the composite material for the electrical element comprises the following steps: weighing the raw materials according to the formula, drying the resin components, mixing with the copolymer, blending with the rest raw materials, melting, extruding, cooling and molding to obtain the composite material for the electrical element.
According to a specific and preferred aspect of the present invention, when the raw material of the composite material for electrical components includes polyphenylene sulfide (PPS), Polyetherimide (PEI), polyphenylene sulfone (PPSU), graphene, stainless steel fiber, silicone master batch, co-polymer, and antioxidant, the preparation method includes the steps of:
(1) weighing the raw materials according to the formula, putting the polyphenylene sulfide, the polyetherimide and the polyphenylene sulfone into an oven, setting the temperature at 150 ℃, and drying for 4-6 hours;
(2) adding polyphenylene sulfide, polyetherimide, polyphenylene sulfone, silicone master batch, copolymer and antioxidant into a mixer according to the mass parts, and mixing for 3-10 minutes;
(3) and (3) putting the mixture obtained in the step (2) into a main feeding port of an extruder, matching with stainless steel fibers and graphene fed by side feeding, shearing and mixing by a screw, extruding strips, cooling and dicing to obtain the composite material for the electrical element.
According to some specific and preferred aspects of the present invention, each raw material is extruded and molded by an extruder, wherein the temperatures of each section in the extruder are controlled to be: the first zone is 160-region, the second zone is 230-region, the third zone is 290-region, the temperature is 310-region, the fourth zone is 340-region, the temperature is 360-region, the temperature is 340-region, the temperature is 360-region, the length-diameter ratio of the screw is 30-50, and the rotation speed.
The invention provides another technical scheme that: an electrical component made from the composite material described above.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
compared with the electrical element made of general engineering plastics, the electrical element prepared from the composite material has the characteristics of capability of being used in an environment with the temperature of more than 200 ℃, radiation resistance, hydrolysis resistance, wear resistance, self lubrication, low resistivity, chemical resistance, aging resistance, long-term stability of resistance value and the like, and is suitable for being used under complicated and severe working conditions. Compared with conductive PEEK materials and conductive PAI materials, the conductive PEEK material has lower use cost under the condition of excellent comprehensive performance.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples; it is to be understood that these embodiments are provided to illustrate the general principles, essential features and advantages of the present invention, and the present invention is not limited in scope by the following embodiments; the implementation conditions used in the examples can be further adjusted according to specific requirements, and the implementation conditions not indicated are generally the conditions in routine experiments.
In the following, all starting materials are either commercially available or prepared by conventional methods in the art, unless otherwise specified. Polyphenylene Sulfide (PPS) is purchased from chongqing po new technology materials ltd, product type: GL 04. Polyetherimide (PEI) is available from a group selected from SABIC corporation, product model: 1000-1000. Polyphenylene Sulfone (PPSU) is available from SOLVAY corporation under the product model number: r-5800. Graphene was purchased from hexelement science and technology ltd, changzhou, model: SE 1231. The stainless steel fiber can be selected from KOOLON, sheared short fiber with diameter of about 8mm and length of about 80 mm. The silicone master batch can be made of Kejie plastics, and the types are as follows: KJ-A01. The copolymer is a compatilizer purchased from Shenzhen Pasteh new material science and technology Limited company, and has the model number: SME 098. Antioxidants were purchased from CYANOX 1790, cyanogen, USA.
Example 1
The embodiment provides a composite material for electrical components, which comprises the following raw materials: polyphenylene sulfide 40 parts (PPS); 30 parts of Polyetherimide (PEI); 30 Parts of Polyphenylene Sulfone (PPSU); 5 parts of graphene; 10 parts of stainless steel fiber; 2 parts of silicone master batch; 2 parts of a copolymer; 0.1 part of antioxidant.
The preparation method comprises the following steps:
a. weighing the raw materials according to the formula, putting the polyphenylene sulfide, the polyetherimide and the polyphenylene sulfone into an oven, setting the temperature at 150 ℃, and drying for 4-6 hours;
b. adding the dried polyphenylene sulfide, polyetherimide and polyphenylene sulfone, the silicone master batch, the copolymer and the antioxidant into a high-speed mixer according to the parts by mass, and mixing for 3-10 minutes.
c. And c, putting the mixture obtained in the step b into a main feeding port (positioned in the area 1) of an extruder, feeding stainless steel fibers and graphene in a matched side feeding mode (the feeding mode is weightless feeding, the first side feeding port is arranged in the area 5 and is used for feeding the stainless steel fibers, the second side feeding port is arranged in the area 7 and is used for feeding the graphene), shearing and mixing the materials through a screw rod, extruding strips, cooling and pelletizing to obtain the composite material for the electrical appliance element.
Wherein, the temperature of each section in the extruder is respectively as follows: the first zone is 170 ℃, the second zone is 240 ℃, the third zone is 300 ℃, the fourth zone is 350 ℃, the fifth zone is 350 ℃, the sixth zone is 350 ℃, the seventh zone is 350 ℃, the eighth zone is 350 ℃, the ninth zone is 350 ℃, the tenth zone is 350 ℃ and the eleventh zone is 350 ℃, wherein the length-diameter ratio of the screw is 40 and the rotation speed of the screw is 300 rpm.
Injection molding of a sample, process setting: the drying temperature is 140-160 ℃, the drying time is 4-6 hours, the front section temperature of the injection molding machine is 350 ℃, the middle section temperature is 340 ℃, the rear section temperature is 330 ℃, the nozzle temperature is 340 ℃, the back pressure is 3MPa, the injection molding pressure is 100MPa, the injection speed is 70mm/s, and the mold temperature is 140-160 ℃.
The properties of the injection molded samples were measured as shown in the following Table one.
Watch 1
Example 2
The embodiment provides a composite material for electrical components, which comprises the following raw materials: polyphenylene sulfide 40 parts (PPS); 30 parts of Polyetherimide (PEI); 30 Parts of Polyphenylene Sulfone (PPSU); 10 parts of graphene; 15 parts of stainless steel fiber; 2 parts of silicone master batch; 2 parts of a copolymer; 0.1 part of antioxidant.
The preparation method is the same as example 1.
Injection molding of a sample, process setting: the drying temperature is 140-160 ℃, the drying time is 4-6 hours, the front section temperature of the injection molding machine is 350 ℃, the middle section temperature is 340 ℃, the rear section temperature is 330 ℃, the nozzle temperature is 340 ℃, the back pressure is 3MPa, the injection molding pressure is 100MPa, the injection speed is 70mm/s, and the mold temperature is 140-160 ℃.
The properties of the injection molded samples were measured as shown in Table II below.
Watch two
Example 3
The embodiment provides a composite material for electrical components, which comprises the following raw materials: polyphenylene sulfide 40 parts (PPS); 30 parts of Polyetherimide (PEI); 30 Parts of Polyphenylene Sulfone (PPSU); 15 parts of graphene; 20 parts of stainless steel fiber; 2 parts of silicone master batch; 2 parts of a copolymer; 0.1 part of antioxidant.
The preparation method is the same as example 1.
Injection molding of a sample, process setting: the drying temperature is 140-160 ℃, the drying time is 4-6 hours, the front section temperature of the injection molding machine is 350 ℃, the middle section temperature is 340 ℃, the rear section temperature is 330 ℃, the nozzle temperature is 340 ℃, the back pressure is 3MPa, the injection molding pressure is 100MPa, the injection speed is 70mm/s, and the mold temperature is 140-160 ℃.
The properties of the injection molded samples were measured as shown in Table three below.
Watch III
Comparative example 1
Essentially the same as example 1, except that the copolymer was replaced with a conventional plastic compatibilizer, maleic anhydride grafted POE.
The properties of the injection molded samples are measured as shown in Table four below.
Watch four
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (4)
1. The composite material for the electrical element is characterized by comprising the following raw materials in parts by mass:
5-60 parts of polyphenylene sulfide
5-60 parts of polyetherimide
5-60 parts of polyphenylene sulfone
1-20 parts of graphene
5-40 parts of stainless steel fiber
0.5-10 parts of silicone master batch
0.5-10 parts of copolymer
0.02-0.5 part of antioxidant;
the mass ratio of the polyphenylene sulfide to the polyetherimide to the polyphenylene sulfone is 1-5: 0.5-2: 1, the copolymer is a compatilizer SME098 of Shenzhen Pasteh New Material science and technology Limited, and the mass ratio of the material charge of the copolymer to the total material charge of the polyphenylene sulfide to the polyetherimide to the polyphenylene sulfone is 1: 40-60.
2. The composite material for electrical parts according to claim 1, wherein the antioxidant is CYANOX 1790 from cyanothece.
3. A method for preparing a composite material for electrical components according to any of claims 1 or 2, characterized in that it comprises the following steps: weighing the raw materials according to the formula, drying the resin components, mixing with the copolymer, blending with the rest raw materials, melting, extruding, cooling and molding to obtain the composite material for the electrical element.
4. An electrical component, characterized in that it is made of a composite material according to any one of claims 1 or 2.
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| CN109354872B true CN109354872B (en) | 2021-02-09 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568598A (en) * | 2006-12-22 | 2009-10-28 | 第一毛织株式会社 | Electroconductive thermoplastic resin composition and plastic article |
| CN104903981A (en) * | 2013-01-09 | 2015-09-09 | 韩华石油化学株式会社 | Method for producing conductive film |
| CN108165010A (en) * | 2016-12-07 | 2018-06-15 | 上海杰事杰新材料(集团)股份有限公司 | Low dielectric polyphenyl thioether composite material of a kind of high heat conduction and preparation method thereof |
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| US8092626B2 (en) * | 2007-03-12 | 2012-01-10 | University Of Washington | Foaming methods for making cellular thermoplastic materials |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568598A (en) * | 2006-12-22 | 2009-10-28 | 第一毛织株式会社 | Electroconductive thermoplastic resin composition and plastic article |
| CN104903981A (en) * | 2013-01-09 | 2015-09-09 | 韩华石油化学株式会社 | Method for producing conductive film |
| CN108165010A (en) * | 2016-12-07 | 2018-06-15 | 上海杰事杰新材料(集团)股份有限公司 | Low dielectric polyphenyl thioether composite material of a kind of high heat conduction and preparation method thereof |
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