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Wear-resistant material and its preparation method and wear-resistant parts

A technology of wear-resistant materials and wear-resistant agents, applied in the field of wear-resistant materials, can solve problems such as poor low-temperature performance, and achieve the effects of low operating temperature, controllable friction coefficient, and low energy consumption

Active Publication Date: 2021-11-02
贵州省材料技术创新基地
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a wear-resistant material and its preparation method and wear-resistant parts, so as to improve the defects of poor low-temperature performance of existing polyamide wear-resistant materials

Method used

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  • Wear-resistant material and its preparation method and wear-resistant parts
  • Wear-resistant material and its preparation method and wear-resistant parts

Examples

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preparation example Construction

[0061] The preparation method of the wear-resistant material provided in the embodiment of the present application is to mix all the raw materials evenly and then use a screw extruder to extrude and granulate. The operation is simple, the process is convenient, and it is suitable for large-scale production and preparation. When the screw extruder extrudes and granulates, the temperature of extrusion and granulation is selected as 170~200°C, and the screw speed during extrusion and granulation is 250~270r / min, which can ensure sufficient melting of each raw material and prepare stable performance. wear-resistant material particles.

[0062] In some optional embodiments, the extrusion granulation temperature may be 170°C, 175°C, 180°C, 185°C, 190°C, 195°C, 200°C. Optionally, the rotational speed of the screw during extrusion granulation can be 250r / min, 255r / min, 260r / min, 265r / min, 270r / min.

[0063] In the third aspect, the embodiment of the present application provides a wea...

Embodiment 1

[0066] This embodiment provides a wear-resistant material, which is prepared by the following method:

[0067] Weigh respectively 80Kg polyamide 1212, 20Kg polyether polyurethane, 20Kg polyolefin elastomer unsaturated carboxylic acid graft copolymer, 6Kg chopped abaca fiber, 3Kg supercritical carbon dioxide intercalation coupling treated hydrotalcite disulfide Molybdenum nanocomposite, 0.6Kg glycidyl methacrylate and 0.3Kg tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester are used as raw materials, and the raw materials are put into the mixer Stir for 2 minutes to mix evenly, and then put the mixed materials into the twin-screw extruder.

[0068] The raw materials are extruded and granulated by twin-screw extruder, followed by cooling, pelletizing, drying and packaging. The temperature during extrusion granulation is 200°C, and the temperature of each section of the screw extruder from the feed port to the twin-screw extrusion die is 170°C, 180°...

Embodiment 2

[0070] This embodiment provides a wear-resistant material, which is prepared by the following method:

[0071] Weigh respectively 70Kg polyamide 1212, 10Kg polyether polyurethane, 20Kg polyolefin elastomer unsaturated carboxylic acid graft copolymer, 5Kg chopped abaca fiber, 2Kg supercritical carbon dioxide intercalation coupling treated hydrotalcite disulfide Molybdenum nanocomposite, 0.2Kg glycidyl methacrylate and 0.1Kg tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester are used as raw materials, and the raw materials are put into the mixer Stir for 2 minutes, and then put the uniformly mixed material into the twin-screw extruder.

[0072] The raw materials are extruded and granulated by twin-screw extruder, followed by cooling, pelletizing, drying and packaging. The temperature during extrusion granulation is 200°C, and the temperature of each section of the screw extruder from the feeding port to the twin-screw extrusion die is 170°C, 180°C,...

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Abstract

A wear-resistant material, a preparation method thereof and a wear-resistant part relate to the technical field of wear-resistant materials. The wear-resistant material includes the following raw materials in parts by weight: 70-90 parts of polyamide, 10-30 parts of polyether polyurethane, 20-30 parts of toughening agent, 5-15 parts of plant fiber, 1-3 parts of wear-resistant agent, 0.2 ~0.8 parts of crosslinking agent and 0.1~0.3 parts of antioxidant. The wear-resistant material provided by the embodiment of the present application can improve the defect of poor low-temperature performance of the existing polyamide wear-resistant material. The present application also provides a preparation method of the above-mentioned wear-resistant material and a wear-resistant part prepared from the above-mentioned wear-resistant material.

Description

technical field [0001] The present application relates to the technical field of wear-resistant materials, in particular, to a wear-resistant material, a preparation method thereof, and a wear-resistant part. Background technique [0002] Wear plates are commonly used accessories on vehicles, which are mainly arranged between moving parts to reduce the wear of the parts. The material of the traditional wear plate is mostly made of A3 steel plate and forged with a shearing machine, which has the disadvantages of high energy consumption, short service life, and high labor intensity for installation. In recent years, new wear plates mostly use polyamide as an alternative material, but the existing polyamide wear plates are easily brittle and fractured when used in severe cold environments, which can easily lead to damage to the wear plates and cause safety accidents. [0003] Therefore, it is necessary to invent a low-wear, low-temperature-resistant, high-strength polyamide we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L75/08C08L1/02C08K13/06C08K9/02C08K9/04C08K3/26C08K3/30C08K3/34
CPCC08K2003/3009C08L77/06C08L2205/035C08L2205/16C08L75/08C08L1/02C08K13/06C08K9/02C08K3/26C08K3/30C08K9/04C08K3/346
Inventor 徐定红郭建兵秦舒浩于杰张翔何玮頔周颖伍宏明
Owner 贵州省材料技术创新基地
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