CN114231021A - Automobile gear material and preparation method thereof - Google Patents
Automobile gear material and preparation method thereof Download PDFInfo
- Publication number
- CN114231021A CN114231021A CN202111620143.9A CN202111620143A CN114231021A CN 114231021 A CN114231021 A CN 114231021A CN 202111620143 A CN202111620143 A CN 202111620143A CN 114231021 A CN114231021 A CN 114231021A
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- Prior art keywords
- graphene
- automobile gear
- parts
- nylon
- preparation
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- 239000000463 material Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 29
- 239000004677 Nylon Substances 0.000 claims abstract description 18
- 229920001778 nylon Polymers 0.000 claims abstract description 18
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 12
- 239000012760 heat stabilizer Substances 0.000 claims abstract description 12
- 239000007822 coupling agent Substances 0.000 claims abstract description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 description 12
- 229920006124 polyolefin elastomer Polymers 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- -1 graphite alkene Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- QAZYYQMPRQKMAC-FDGPNNRMSA-L calcium;(z)-4-oxopent-2-en-2-olate Chemical compound [Ca+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O QAZYYQMPRQKMAC-FDGPNNRMSA-L 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/2053—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the additives only being premixed with a liquid phase
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to an automobile gear material and a preparation method thereof, and the key points of the technical scheme are that the automobile gear material comprises 80-95 parts of nylon, 5 parts of POE, 10-15 parts of graphene, 1 part of a coupling agent, 0.2 part of an antioxidant, 0.3 part of a dispersant and 0.3 part of a heat stabilizer in parts by mass; compared with the conventional automobile gear, the automobile gear has better tensile strength and thermal conductivity.
Description
Technical Field
The invention relates to the technical field of gear materials, in particular to an automobile gear material and a preparation method thereof.
Background
The gear is a common transmission part and is widely applied to various transmission mechanisms, such as a gearbox of an automobile and the like. Nylon is a gear material commonly used in industry, and has a smaller mass than a metal material, and thus has a wide application in lightweight production. At room temperature, the nylon has high tensile strength and impact strength, good fatigue resistance, and excellent friction resistance and wear resistance. During the running process of the automobile, the temperature of the engine can rise, so that a gear with better heat conduction is needed for heat conduction, and therefore, the heat is better dissipated, and the automobile can better work on other various performances. Furthermore, automobiles are more required to have excellent damping during speed changes and cornering, and also are required to have excellent tensile properties during gear operation. Therefore, compared with the common gear material, the transmission gear material for the automobile needs to have better tensile strength and better thermal conductivity, so that the nylon material is frequently required to be modified by adding a modifier so as to be more suitable for the application occasions of the automobile gear.
Disclosure of Invention
One of the objects of the present invention is to provide an automobile gear material having better tensile strength and thermal conductivity than conventional gear materials.
The above purpose of the invention is realized by the following technical scheme: an automobile gear material comprises, by mass, 80-95 parts of nylon, 5 parts of POE, 10-15 parts of graphene, 0.2 part of an antioxidant, 0.3 part of a dispersant and 0.3 part of a heat stabilizer.
Through above-mentioned technical scheme, through adding graphite alkene in the nylon substrate, and then when the material shaping, the micromolecular group equipartition of graphite alkene is in the material to make the material have better heat conductivity and tensile strength.
The invention also aims to provide a preparation method of the automobile gear material, which is applied to the preparation of the automobile gear material.
The above purpose of the invention is realized by the following technical scheme: a preparation method of an automobile gear material comprises the following steps:
step S1, weighing nylon, POE, graphene, an antioxidant, a dispersant and a heat stabilizer according to the corresponding parts by weight;
step S2, adding graphene into N, N-dimethylformamide to be fully dissolved to form a graphene organic solution;
step S3, adding nylon, POE, an antioxidant, a dispersant, a heat stabilizer and a graphene organic solution into a screw extruder, and extruding the raw materials;
and step S4, cooling the extrusion raw material and then granulating by a granulator.
By adopting the technical scheme, the graphene added with the nylon base material is easy to agglomerate, so that the dispersion is not uniform; before mixing materials, placing graphene in N, N-dimethylformamide to be fully and uniformly vibrated, and then blending the graphene with raw materials, so that the graphene can be more uniformly dispersed in a nylon base material; when the material is extruded, the N, N-dimethylformamide is heated and volatilized, so that the automobile gear material is not influenced.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Example 1: a preparation method of an automobile gear material comprises the following steps:
step S1, weighing the raw materials in parts by weight as follows:
80 parts of nylon, 87.5 parts of POE (polyolefin elastomer), 10 parts of graphene, 1 part of coupling agent, 0.2 part of antioxidant, 0.3 part of dispersant and 0.3 part of heat stabilizer, wherein the antioxidant adopts 1010, the dispersant adopts ethylene bis stearamide, and the coupling agent adopts gamma-aminopropyltriethoxysilane; the heat stabilizer adopts calcium acetylacetonate;
step S2, adding graphene into N, N-dimethylformamide to be fully dissolved to form a graphene organic solution;
step S3, adding nylon, POE, an antioxidant, a dispersant, a heat stabilizer and a graphene organic solution into a screw extruder, and extruding the raw materials; in the extrusion process, the screw extruder is provided with three sections of temperature zones; a first stage: 250 to 265 ℃; and (2) second stage: 250 to 265 ℃; and (3) three stages: 250 to 265 ℃; a head 250 to 265 ℃;
and step S4, cooling the extrusion raw material to room temperature through a water tank, and then granulating through a granulator.
Examples 2 to 7 were prepared in the same manner as in example 1 except that the contents of the respective components were different from those in example 1, as shown in table 1.
TABLE 1 EXAMPLES 1-5 raw Material compositions and amounts of automotive Gear materials
The data units in the table are parts by mass.
Comparative example
Comparative example 1
Comparative example 1 is the same as the preparation method of example 1 except that graphene is not included in the raw material.
Comparative example 2
Comparative example 2 is the same as the preparation method in example 1 except that graphene in the raw material is replaced with glass fiber.
Comparative example 3
Comparative example 3 is the same formulation as in example 1, except that it was prepared using the following preparation method:
step S1, weighing nylon, POE, graphene, an antioxidant, a dispersant and a heat stabilizer according to the corresponding parts by weight;
step S2, adding nylon, POE, graphene, an antioxidant, a dispersing agent and a heat stabilizer into a screw extruder, and extruding the raw materials;
and step S3, cooling the extrusion raw material and then granulating by a granulator.
Test method
Performance test experiments, including tensile strength tests and material thermal conductivity test calculations, were performed on 5 automobile gear materials prepared in examples 1-5 and 3 automobile gear materials prepared in comparative examples 1-3, respectively.
Wherein the tensile strength test is carried out according to the method specified in GB/T-1040;
the thermal conductivity of the material is measured by a thermal analyzer to obtain the thermal diffusivity and specific heat capacity of the composite material, and the thermal conductivity is calculated according to a formula of the thermal conductivity which is the thermal diffusivity multiplied by the specific heat capacity multiplied by the density.
TABLE 2 test results of examples 1 to 5 and comparative examples 1 to 3
| Test items | Tensile Strength test | Thermal conductivity test calculation |
| Unit of | MPa | / |
| Example 1 | 44.6 | 0.52 |
| Example 2 | 40 | 0.47 |
| Example 3 | 38 | 0.42 |
| Example 4 | 50.5 | 0.58 |
| Example 5 | 62 | 0.65 |
| Comparative example 1 | 36 | 0.32 |
| Comparative example 2 | 45 | 0.25 |
| Comparative example 3 | 44 | 0.5 |
As can be seen from the data of tables 1 and 2, the tensile strength as well as the thermal conductivity of the automobile gear material significantly increased as the ratio of the graphene component in the material increased. The tensile strength modification effect of the graphene on nylon is basically equal to that of a traditional glass fiber modifier, but the graphene has a better heat conduction effect compared with the glass fiber modification; the N, N-dimethylformamide is adopted to dissolve the graphene in advance, and compared with a gear material prepared by not pretreating the graphene, the graphene is more fully and uniformly distributed in the material, so that the tensile strength and the thermal conductivity of the gear material are enhanced.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for the purpose of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (2)
1. An automobile gear material is characterized in that: the material comprises, by mass, 80-95 parts of nylon, 5 parts of POE, 10-15 parts of graphene, 1 part of a coupling agent, 0.2 part of an antioxidant, 0.3 part of a dispersant and 0.3 part of a heat stabilizer.
2. A preparation method of an automobile gear material is applied to the preparation of the automobile gear material in claim 1, and is characterized by comprising the following steps:
step S1, weighing nylon, POE, graphene, an antioxidant, a dispersant and a heat stabilizer according to the corresponding parts by weight;
step S2, adding graphene into N, N-dimethylformamide to be fully dissolved to form a graphene organic solution;
step S3, adding nylon, POE, an antioxidant, a dispersant, a heat stabilizer and a graphene organic solution into a screw extruder, and extruding the raw materials;
and step S4, cooling the extrusion raw material and then granulating by a granulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620143.9A CN114231021A (en) | 2021-12-27 | 2021-12-27 | Automobile gear material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620143.9A CN114231021A (en) | 2021-12-27 | 2021-12-27 | Automobile gear material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114231021A true CN114231021A (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111620143.9A Pending CN114231021A (en) | 2021-12-27 | 2021-12-27 | Automobile gear material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114231021A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120053273A1 (en) * | 2009-05-04 | 2012-03-01 | Ching Fong Hon | High Wear-Resistant Nylon Composite Material For Rollers On Airport Freight Vehicles And Preparation Method Thereof |
| CN104086983A (en) * | 2014-07-28 | 2014-10-08 | 北京中科博益科技有限公司 | Graphene/nylon composite material as well as preparation method and application of graphene/nylon composite material |
| CN105778481A (en) * | 2016-05-12 | 2016-07-20 | 湖北运来塑胶科技有限公司 | Graphene/glass fibre reinforced nylon composite material and preparation method thereof |
-
2021
- 2021-12-27 CN CN202111620143.9A patent/CN114231021A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120053273A1 (en) * | 2009-05-04 | 2012-03-01 | Ching Fong Hon | High Wear-Resistant Nylon Composite Material For Rollers On Airport Freight Vehicles And Preparation Method Thereof |
| CN104086983A (en) * | 2014-07-28 | 2014-10-08 | 北京中科博益科技有限公司 | Graphene/nylon composite material as well as preparation method and application of graphene/nylon composite material |
| CN105778481A (en) * | 2016-05-12 | 2016-07-20 | 湖北运来塑胶科技有限公司 | Graphene/glass fibre reinforced nylon composite material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨明山、李林楷: "《耐氧化聚苯硫醚纤维的制备及其结构与性能》", 中国纺织出版社有限公司, pages: 163 * |
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Application publication date: 20220325 |
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